API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

Von 86,020 Bewertungen, bewerten Kunden unsere API Developers 4.9 von 5 Sternen.
API Developers anheuern

API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

Von 86,020 Bewertungen, bewerten Kunden unsere API Developers 4.9 von 5 Sternen.
API Developers anheuern

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    276 Jobs gefunden

    Ich benötige eine schlanke, aber erweiterbare Integration zwischen Shopify und Microsoft Dynamics 365 Business Central. Hauptaufgabe ist es, Produkt- und Bestelldaten in Echtzeit über die Business Central API auszutauschen, ohne zusätzliche Zwischenplattform. Kernanforderungen • Echtzeit-Synchronisation:  – Produkte (Artikelstammdaten, Preise, Bestände)  – Bestellungen inkl. Status-Updates • Technologie: Nutzung der Business Central REST-API als zentrales Gateway; auf Shopify-Seite gern native REST-Endpunkte oder GraphQL, solange die Lösung konsistent bleibt. • Modularer Aufbau, sodass künftige Erweiterungen (z. B. Kundendaten) mit minimalem Aufwand eingebunden werden können. • Sauberes Fehler-Handlin...

    €2143 Average bid
    €2143 Gebot i.D.
    63 Angebote

    KFZ-Versicherungsplattform Blueprint (MVP) 1:Projektziel Anonyme, DSGVO-konforme KFZ-Versicherungs-Vergleichsplattform Nutzer gibt Fahrzeugdaten manuell oder per HSN/TSN ein Sofortige Preis- und Leistungsübersicht nach Ranking (günstig → teuer) Kontaktaufnahme: Web-Messenger, WhatsApp, Telegram Partner: blaudirekt, Fondsnet, weitere Versicherer Monetarisierung: Pay-per-Lead, Pay-per-Sale, Upsell / Cross-Selling Plattform skalierbar für weitere Versicherungsarten (Hausrat, Brandschutz, PKV) 2: UI-Wireframe-Logik Home / Startseite Header: Logo, Navigation (Home / Infos / Kontakt) Hero: „KFZ-Versicherung anonym vergleichen“ Eingabeformular: HSN/TSN oder manuelle Fahrzeugdaten Auswahl: Versicherungsart (Haftpflicht / Teilkasko / Vollkasko) Selbst...

    €1165 Average bid
    €1165 Gebot i.D.
    67 Angebote

    I want to build a service marketplace app similar to Sheba/Urban Company. Structure: Category → Sub‑Category → Service (service is the base unit) Main Modules: 1) Customer App 2) Worker App 3) Admin Panel (Web) 4) Backend + Database + APIs Core Features: - Category/Sub‑Category/Service listing - Fixed & Variable Pricing Engine - Fixed & Variable Time Calculation - Booking System - Worker Matching (primary + extended radius) - Payment Integration (bKash/Nagad/SSLCommerz) - Big Job Module (inspection + verification) - Notifications - Service activation/deactivation - Promo support Admin Panel: - Add/Edit Category, Sub‑Category, Service - Set price type (fixed/per_sqft/per_room/per_unit) - Set base price, min/max price, base unit - Set time type (fixed/variable) - Set ba...

    €420 Average bid
    €420 Gebot i.D.
    184 Angebote

    I am developing a Cabal Online Private MMORPG (EP 35 +). The system works through .so library injection into the game server process, and includes: Advanced C++ development Memory hooks and offset manipulation Packet interception and handling (C2S / S2C) Internal game structure interaction Modular plugin system JSON-based configuration Linux-based deployment I am looking for an experienced developer to help expand, stabilize, and improve this system. - Technical Requirements Strong C++ (advanced level); Linux development experience; Memory manipulation (pointers, offsets); Hooking / detours; Reverse engineering knowledge; Networking and protocol understanding; Advanced debugging skills; Nice to have: Experience with MMO private servers; Familiarity with Cabal, MU Online, Ragnarok, o...

    €3143 Average bid
    €3143 Gebot i.D.
    15 Angebote

    I need a single Google Sheet that lets me type a Home Depot or Lowe’s model number in one column and, without any extra clicks, instantly fills the rest of the row with: • Brand • Product title • Full description • Current price on Home Depot • Current price on Lowe’s • Main image URL I’d like the sheet to refresh these fields automatically once every day so I always see up-to-date pricing. I’m happy to use the HASData API (or another service if you can show a better option), and I’ll cover the subscription cost myself; I just need you to wire everything up in Apps Script or another reliable method so the calls stay within API limits and don’t break if the catalog grows. Deliverables • A Google Sheet t...

    €21 Average bid
    €21 Gebot i.D.
    26 Angebote
    Next-Gen EV Charger Management
    6 Tage left
    Verifiziert

    I’m rolling out a new generation of eco-friendly EV charging stations and need a full-featured management platform built from scratch. Here’s what the first release must do for me: • Energy usage monitoring for every session and charger • Remote control—start, stop, reboot and schedule charging • Secure user authentication Role-based access is essential. Administrators configure the network and view global analytics, end-users simply authenticate and charge, while maintenance staff receive real-time diagnostics and alerts. The platform must also talk seamlessly to our existing energy-management system through open, well-documented APIs so we can optimise load and incorporate on-site renewables. REST/JSON is preferred, but I’m open to proven alterna...

    €6117 Average bid
    €6117 Gebot i.D.
    69 Angebote

    Looking for a skilled PHP developer with experience building custom eCommerce modules for standard shopping cart platforms. Contact or place a bid for details. Applicants must be willing to execute an NDA before receiving full project details. Please include examples of similar work

    €21 Average bid
    €21 Gebot i.D.
    64 Angebote

    We are building a next-generation ad monetization platform for web publishers. Think of a lightweight combination of Google Ad Manager, Freestar, and modern header bidding infrastructure. The system will allow: Admins to onboard publisher websites Configure ad formats & behavior Inject ads automatically Track revenue from GAM Apply commission Provide publishers with dashboards & payouts This is an MVP but must be built with production scalability in mind. We Expect Developers Who Understand Google Ad Manager Header bidding concepts Ad refresh & viewability Passbacks Programmatic reporting Ad ops workflows

    €489 Average bid
    €489 Gebot i.D.
    23 Angebote
    Custom Nostr Fork Development
    6 Tage left
    Verifiziert

    I’m forking and need a seasoned TypeScript engineer who is totally at ease working Git-first and can dive straight into a Nostr codebase. The immediate goal is to introduce a suite of non-public features around improved listings and, above all, a powerful personalised content-suggestion layer. Scope • Extend the existing front-end and back-end (TypeScript, React, Node) with the new private listing modules I will outline in Figma and Notion. • Build a recommendation engine grounded in socio-psychology principles rather than the usual collaborative or content-based filters. I will supply the research notes and sample scoring model; you will translate them into production code, unit tests, and API endpoints. • Keep everything behind a feature flag so the public fo...

    €463 Average bid
    €463 Gebot i.D.
    130 Angebote

    I am seeking a full custom SaaS rebuild of RememberMe, a QR based memorial platform that links engraved stainless steel plaques to digital memorial profiles containing photos, videos, audio recordings, obituaries, biographies, timelines, and family submitted content. This is a ground up rebuild designed for long term scalability (millions of users), performance, and security, not a template site. Key Requirements: Scalable cloud-based backend architecture Secure user authentication and account management Media storage and optimization (photos, video, audio) Stripe integration for e-commerce checkout Automated unique QR code generation tied to profiles Short, engraving-friendly URL system Public memorial pages (SEO optimized) Robust admin dashboard with: User management Order management &am...

    €6038 Average bid
    €6038 Gebot i.D.
    133 Angebote

    We have developed two Python scripts to prepare VTT files (*.vtt) for translation and another to prepare them for delivery to the client. The first script combines segmented text for translation. The second script re-splits the translated content into properly timed captions for delivery. Currently, if a project manager wants to use the scripts, they need to email the files to the script owner, who manually runs the first script and returns the processed files to the project manager. The project manager then continues with the workflow. Once the translated content is finalised, the project manager emails the files back to the script owner to run the second script, and the script owner sends the processed files back to the project manager for delivery. We want to implement a solution tha...

    €28 / hr Average bid
    €28 / hr Gebot i.D.
    149 Angebote

    I’m building a lightweight MVP that lets independent cafés run a fully automatic, card-linked loyalty programme without issuing separate cards or apps. The core of the job is a secure backend service that: • Listens to Square and SumUp webhooks / APIs, fingerprints the payment card (never the full PAN) and recognises returning customers. • Increments a visit counter and, when a customer hits the reward threshold, instantly triggers the reward logic. • Fires an SMS through Plivo to let the guest know they’ve just earned, for example, a free coffee. What I’ll look for in the finished work 1. Clean, well-documented code (language and framework are up to you as long as it’s reliable and easy to maintain). 2. Clear setup instructions a c...

    €598 Average bid
    €598 Gebot i.D.
    149 Angebote

    Matrimonial Community App – Smart, Secure & Fully Automated Flow User Journey: Users visit the official website → download Android/iOS app → OTP login → fill biodata (personal, family, contact, etc.) → upload 2–4 photos (auto watermark + unique Biodata ID generated) → complete payment (UPI/Card/Netbanking). Only paid profiles go to Admin review. Approved profiles are auto-added to assigned private groups; rejected profiles are auto-refunded (Razorpay, ~24 hrs) with notification. Inside the App & Groups: Members can view biodata + photos (zoom enabled), shortlist profiles, and contact Admin via chat/call. Screenshots and downloads are disabled for privacy. Profiles are visible only within assigned groups. Smart system rotates unique biodata mon...

    €317 Average bid
    €317 Gebot i.D.
    35 Angebote

    I'm looking for an experienced full-stack developer to implement the MVP end-to-end. I'll need a video call, so no scams here. Overview Clients submit coding tasks through a store-like request system. Each request becomes a project with clear lifecycle tracking, communication, time tracking, and weekly billing. The platform must support multiple roles: Client, Developer, and Admin. Core Features (MVP) Service Request & Project Creation • Store-style service selection • Structured task submission (requirements, priority, attachments) • Automatic project creation after request/payment Project Lifecycle Management • Status flow (e.g. Received → Investigating → In Progress → Review → Completed) • Progress updates and activity hi...

    €436 Average bid
    €436 Gebot i.D.
    259 Angebote

    Desarrollador/a Especializado en – Integraciones y Automatizaciones Descripción del Proyecto Estamos buscando un/a Desarrollador/a con experiencia en para trabajar en integraciones, automatizaciones y soluciones técnicas sobre la plataforma. es una plataforma omnicanal de mensajería empresarial impulsada por IA, que unifica conversaciones de múltiples canales (WhatsApp, Instagram, Messenger, correo electrónico, chat web, etc.) para ventas, marketing y soporte. Este rol es ideal para alguien con fuerte enfoque en desarrollo técnico, API, automatizaciones y escalabilidad de soluciones basadas en Respond.io. Responsabilidades Integración y Desarrollo Desarrollar integraciones con APIs de para conectar con otros sistemas (CRM, au...

    €1163 Average bid
    €1163 Gebot i.D.
    75 Angebote

    Project: Retell AI ↔ Zenbooker Scheduling Bridge plus FluentCRM Lead Capture What we’re building: A backend bridge that lets Retell AI automatically book, reschedule, and cancel appointments in Zenbooker during live phone calls while also capturing leads immediately in FluentCRM for abandoned follow up sequences. Must have outcomes: When a caller tells Retell AI to book, reschedule, or cancel, the integration must * Create, reschedule, or cancel the correct appointment in Zenbooker * Trigger Zenbooker’s built in confirmation email automatically when a booking is created, assuming notifications are enabled * Handle reschedules and cancellations cleanly with no broken states and no double booking * Capture the caller as a lead in FluentCRM as soon as we have name plus pho...

    €136 Average bid
    €136 Gebot i.D.
    136 Angebote

    To develop a VoIP calling app direct calling phone/mobile with custom caller ID Admin portal- 1. User management 2. Custom caller ID 3. Calling history with IP 4. Manage User details, Name, Email, User ID, Showing password, Caller ID with have change custom caller ID 5. Save Calling details with IP, calling number, time etc 6. Manage User by Admin (Add & remove User) 7. Admin portal development 8. User iOS App & Android App with Login Email id & password

    €238 Average bid
    €238 Gebot i.D.
    25 Angebote

    Potrzebuję konfiguratora ofert składającego się z dwóch powiązanych modułów. 1. Moduł widoczny dla klienta • Osadzany bezpośrednio na stronie www. • Aby poznać szczegóły, użytkownik musi wypełnić trzy pola: Adres e-mail, Numer telefonu oraz Imię i nazwisko. • Po przesłaniu danych system może wyświetlić podsumowanie lub wysłać je mailowo – forma przekazania jest do wspólnego ustalenia. 2. Moduł wewnętrzny dla sprzedawcy • Dostęp tylko po zalogowaniu. • Zawiera: Opcje produktu, Kalkulator cenowy oraz Opcje rabatowania, dzięki czemu sprzedawca może szybko stworzyć spersonalizowaną ofertę i od razu obliczyć końcową cenę. • Wynik konfiguracji powinien dać się zapisać lub wyeksportować (PDF/CSV), aby łatw...

    €134 Average bid
    €134 Gebot i.D.
    26 Angebote

    I already run on the WhatsApp Business API and now need it properly connected to Meta so I can handle both automated replies and bulk messaging from one place. Here is what I expect: • Map my current WhatsApp Business API number into Meta Business Manager, verify it, and activate webhooks. • Build out the automated flow reply I have in mind so it can answer customers instantly—this includes template approval inside Meta and any required server-side logic. • Enable a straightforward method for sending large-volume marketing broadcasts that stays within Meta’s policy limits (24-hour window, opt-in, template use). You may use Node.js, Python, PHP or another language you’re comfortable with, as long as the final solution is documented and ready for m...

    €25 Average bid
    €25 Gebot i.D.
    16 Angebote

    I need a web-based hotel booking platform where travelers can type a U.S. ZIP code, instantly see nearby hotel options, and complete the reservation at the best agent-only rate by entering a valid IATA number at checkout. The core build must: • Pull live availability, pricing, and booking capabilities through direct API integrations with Amadeus, Sabre, and Travelport. • Offer traveler-facing search filters for price range, star rating, and specific amenities. • Display results sorted by distance from the entered ZIP. • Securely process the booking, verify the IATA, and return confirmation details in real time. I’m looking for a clean, responsive interface, clear documentation of each API connection, and deployment on a cloud host of your choice. Onc...

    €453 Average bid
    €453 Gebot i.D.
    187 Angebote
    FastAPI Image Cutline Service
    6 Tage left
    Verifiziert

    I need a clean, self-contained FastAPI microservice that accepts an uploaded JPEG or PNG, automatically traces the outer contour of the visible subject, expands that shape by a configurable offset, and returns the resulting cutline as an SVG file. Auto-outline detection is the single most important processing step; edge smoothing and colour tweaks are nice-to-haves but not required for this phase. Here’s the flow I have in mind. A user hits /outline with a multipart upload, the API queues the image, runs the outline routine (OpenCV, scikit-image, or any library you prefer), inflates the path by the requested number of pixels or mm, then streams back plain-text SVG. A second, optional endpoint /health is enough for monitoring. The service must comfortably handle images up to roughly ...

    €142 Average bid
    €142 Gebot i.D.
    56 Angebote

    Hello, We are looking for a "hacker-level" Python Scraper who specializes in cutting-edge data extraction techniques. We are specifically looking for an expert who can scrape a wide range of data, including emails, from , while efficiently fetching data while avoiding credit costs. {If you read this completely, start with mj.} If you have the technical skills to overcome these limitations and deliver high-volume results, then you are the expert we are looking for. Let's discuss the project in detail.

    €382 Average bid
    €382 Gebot i.D.
    43 Angebote

    I’m hiring a strong AI Engineer / Agent Architect to build a personal AI Chief of Staff based on OpenClaw / Moltbot (or a compatible architecture with a clear OpenClaw/Moltbot migration path). I need more than a chatbot: a true multi-agent system with 1 supervisor + worker swarm that delegates tasks, cross-checks outputs, scores quality, and continuously improves. Goal A 24/7 system that: turns my goals into structured execution, delegates across LLMs/tools, enforces multi-layer quality control, optimizes token/infra costs (no wasteful loops), proposes new skills/upgrades (applied only with my approval). Initial Focus 1) AI Influencer Factory Create/manage multiple virtual influencer personas (style, voice, strategy), generate text/image/video content, run publishing pipeli...

    €392 Average bid
    €392 Gebot i.D.
    45 Angebote

    I’m building an Android-only application and need a clean, secure login flow that relies on one-time passwords sent strictly by SMS. Users will enter their phone number, receive the code, and gain access after successful verification—no usernames or emails involved. You’ll be responsible for wiring up the full authentication cycle, choosing a reliable SMS gateway, and writing the Android code (Kotlin or Java—your call) that: • accepts the phone number, • triggers the SMS OTP dispatch, • validates the returned code with sensible expiry and limited retries, • handles resend logic, and • stores / refreshes session tokens once the user is verified. Deliverables must include the documented source code, any backend or cloud function n...

    €72 Average bid
    €72 Gebot i.D.
    42 Angebote

    hello, i'm building a social layer for polymarket but can't place an ordrer trhough i keep getting this error XHR POST [HTTP/3 400 175ms] [CLOB Client] request error {"status":400,"statusText":"","data":{"error":"invalid signature"},"config":{"transitional":{"silentJSONParsing":true,"forcedJSONParsing":true,"clarifyTimeoutError":false},"adapter":["xhr","http","fetch"],"transformRequest":[null],"transformResponse":[null],"timeout":0,"xsrfCookieName":"XSRF-TOKEN","xsrfHeaderName":"X-XSRF-TOKEN","maxContentLength":-1,"maxBodyLength":-1,"...

    €131 Average bid
    €131 Gebot i.D.
    111 Angebote

    Je dispose déjà d’une plateforme SaaS en PHP / MySQL ; l’objectif est maintenant de lui adjoindre une application mobile native Android et iOS entièrement en français. L’app devra communiquer avec mon back-end via API (REST / JSON) afin de récupérer et mettre à jour les données existantes. Fonctionnalités clés • Notifications push configurables depuis le SaaS • Mode hors ligne avec synchronisation automatique dès qu’une connexion est retrouvée • Prise de photo directe depuis l’application puis annotation libre (dessin, surlignage) avant envoi L’expérience utilisateur doit rester fluide et réactive, c’est mon critère num&ea...

    €568 Average bid
    €568 Gebot i.D.
    104 Angebote

    Rozwijam projekt z obszaru mental health / health-tech, którego celem jest stworzenie nowoczesnej, niskoprogowej platformy wczesnego wsparcia psychicznego. Projekt odpowiada na realną lukę systemową: miliony osób pozostają „pomiędzy” brakiem wsparcia a profesjonalną pomocą – z powodu barier geograficznych, finansowych, społecznych i psychologicznych. Platforma działa już w podstawowej wersji społecznościowej. Kolejny etap to rozwój pełnego modelu hybrydowego: • bezpieczna przestrzeń społeczna • moderowane grupy wsparcia • strefa wiedzy / psychoedukacja • komunikacja synchroniczna i asynchroniczna • model płatnych usług premium (B2C / B2B w przyszłości) • możliwość dalszego skalowania technologicznego Szukam partnera techn...

    €15 / hr Average bid
    €15 / hr Gebot i.D.
    26 Angebote

    I need a SaaS tool for export costing. Key functionalities: - Primary function: Cost calculation - Material costs - Labor costs - Shipping costs - Support for multiple currencies Ideal skills and experience: - SaaS development expertise - Strong background in cost calculation algorithms - Experience with multi-currency systems - User-friendly interface design Please provide relevant samples and experience.

    €227 Average bid
    €227 Gebot i.D.
    53 Angebote

    Business Name: Score Predictor Concept: Mobile app where users predict football match scores, earn points, and win small cash prizes. Goal: Build MVP prototype with Premier League matches for testing, then expand to Championship, European competitions, and special jackpot games. Business Model: Users pay a small entry fee per round, £1 per round. Users can predict as many rounds as they wish; winners receive cash prizes. Revenue comes from entry fees and potential in-app advertising or sponsorship later. Backend: Connect to a football data API for live scores & league tables; scalable for future expansion.

    €2582 Average bid
    €2582 Gebot i.D.
    230 Angebote

    We are looking for a developer to build a scalable web platform similar to WhatsForm. The core objective is simple. Users should be able to create a form, share its link, and when someone submits the form, a pre-filled WhatsApp message should open to a predefined number while the submitted data also gets saved automatically in the user’s connected Google Sheet. The platform should allow users to build basic forms with fields like name, mobile, email, dropdown, checkbox, and text inputs. Each form should generate a shareable public link. On submission, the system should redirect to WhatsApp with the filled data in message format (no need for auto-send via API in Phase 1). Users must be able to connect their Google account and select or create a sheet where all responses are stored w...

    €68 Average bid
    €68 Gebot i.D.
    31 Angebote

    This project entails building a generative-AI web application that runs entirely on OpenAI GPT and delivers a smooth, real-time, text-based chat experience. The frontend must be responsive so users on desktop or mobile feel no friction, while the backend handles dynamic prompts, keeps short-term conversational context, and lets me fine-tune how the model responds. Core functionality • Secure user authentication (log in / sign-up) • Drag-and-drop or button-based file sharing inside the chat window • Conversational memory so the AI remembers context during a session and resets cleanly when required Behind the scenes the app should: • Call the OpenAI GPT API efficiently, batching or streaming tokens where it makes sense to keep latency low • Store transien...

    €249 Average bid
    €249 Gebot i.D.
    75 Angebote

    Project Overview: We are looking for a skilled developer to create a comprehensive ERP-based mobile and web application to automate and streamline work management processes in our manufacturing company. The application should integrate various modules to improve productivity, reduce manual errors, and enhance decision-making. Modules: 1. Sales & Order Management - Lead Management - Quotation Management - Order Processing & Tracking -sales documentation 2. Production Planning & Scheduling - Production Scheduling - Material Requirement Planning (MRP) - Resource Allocation 3. Work Order Management - Work Order Creation & Assignment - Task Management - Progress Tracking 6. Customer Complaint Management - Complaint Registration - A...

    €1247 Average bid
    €1247 Gebot i.D.
    147 Angebote

    I am assembling a full-stack solution that ingests live financial databases, open-source macroeconomic feeds, and user-submitted figures, then turns all of it into forward-looking insights. The core of the product is an AI layer that delivers predictive analytics and runs configurable scenario simulations; the results need to surface instantly inside an intuitive web dashboard where users create and save their own reports and visual layouts. What I need from you is an end-to-end build: • Data layer – connectors that automatically pull structured and unstructured data from the three source categories above, plus a storage design that can scale as historical records grow. • ML & simulation engine – time-series forecasting models, Monte Carlo or agent-based simula...

    €18 / hr Average bid
    €18 / hr Gebot i.D.
    137 Angebote

    I need a mobile app that can create and print two identical copies of every bill—one for the customer and one for the driver—using a TVS thermal printer. Each bill will carry our company logo and a system-generated, unique barcode. When that barcode is scanned with any standard phone camera or scanner, the duplicate copy of the bill must open immediately on the user’s device. The workflow is simple: fewer than twelve fields are filled in for each transaction, the app saves the data, produces the two printouts, and stores a cloud-accessible version linked to the barcode. A straightforward username-and-password login keeps everything secure. Key points the finished solution must cover: • Seamless Bluetooth or USB communication with the TVS thermal printer (other bran...

    €168 Average bid
    €168 Gebot i.D.
    15 Angebote

    Laravel 12 Developer Needed to Develop Marketplace Platform (Reference Site Provided) We are looking for an experienced Laravel 12 developer to develop a complete marketplace platform based on our reference website. The frontend design must be 100% same as reference site, and the backend should include all required dashboards and management features. Payment gateway integration will be done using Razorpay. Project Requirements 1. Frontend 1.100% same design as reference website responsive payment integration booking & checkout system 2. Admin Dashboard Features (analytics & summary) Management Management 1. Admin can assign any package to any owner 4. Category & Subcategory (with image upload) 5. Package Management 6. Listing CRUD 1. Own...

    €258 Average bid
    €258 Gebot i.D.
    72 Angebote

    I’m rolling out a product that runs simultaneously on the web, iOS and Android, and I need a clean, unified way to handle user entry and keep everyone informed in real time. Authentication scope • Support OAuth flows (Google, Apple, etc.) • Maintain JWT-based sessions for our own username/password route • Offer social-media sign-ins side-by-side, all funnelling into a single user table Notification scope • Email messages for transactional events • Push alerts on the mobile apps • SMS for time-sensitive updates Deliverables 1. Reusable modules or SDK integrations for each platform 2. Secure backend endpoints (or rules) that issue and verify tokens 3. Trigger logic that selects the correct channel—email, push or SMS—based o...

    €13 Average bid
    €13 Gebot i.D.
    14 Angebote

    I am seeking an expert WordPress plugin developer to build a professional-grade, cross-browser cookie cleaner that gives administrators granular control over which specific cookies are deleted when users log out. This is not a simple "delete everything" plugin—existing solutions fail because they either rely exclusively on the Clear-Site-Data header (which does not work on Safari, iOS browsers, or Edge Legacy), or they lack a proper admin interface for selective deletion, or they cannot handle HttpOnly cookies (like WordPress authentication cookies) which JavaScript cannot touch. I need a four-layer hybrid solution that: (1) sends the Clear-Site-Data header only to supporting browsers (Chrome, Firefox, Edge Chromium), (2) performs server-side PHP deletion of HttpOnly cookie...

    €17 Average bid
    €17 Gebot i.D.
    36 Angebote

    I need a reliable solution that can pull data from LinkedIn and insert it straight into a database I specify. The core requirement is the automated transfer—once the tool finishes scraping, every captured field should already be sitting in the database ready for queries and reporting, no manual copy-paste. You’ll advise me on the best approach to authenticate, respect rate limits, and minimise the risk of blocks while still collecting the typical profile-level details (name, headline, company, location, experience, education, skills and anything else you can legally obtain). I will confirm the final field list before you begin. Key objectives • Build or configure a scraper / API wrapper that logs in, navigates to each target profile and captures the agreed-upon fields ...

    €12 / hr Average bid
    €12 / hr Gebot i.D.
    29 Angebote

    I need A 1V1 Calling dating app. I purchase a Flutter App UI from codecanyon. The Work is Create Admin Panel UI Make It functional Create API Connect With App Create Database Modifi App UI According I need Demo Admin Panel ( I need Like This ) Admin panel : Account:admin   Password:123abc Phone number:+447873398220 Demo App ( I need Like This ) 1) 2) payment milestone:- Admin Panel UI - 10% App UI - 10% Create API - 20% Create Database - 10% Admin panel Using Node JS - 30% Make Flutter App functional And Connect Admin panel And API - 10% All Testing Done And Ready to production - 10% Satisfaction:- 1. Admin Panel UI - Make According Demo And Submit Freelancer 2. App UI - Make According Demo And Submit Freelancer 3. Create API - All Api Perfect Work Submit Freelencer 4. Cr...

    €971 Average bid
    €971 Gebot i.D.
    94 Angebote
    Multi-Asset Algo Trading Platform
    6 Tage left
    Verifiziert

    I am building a full-scale algorithmic trading platform and need an experienced developer to take it from concept to production. The core of the system will execute three distinct strategies—scalping, day trading, and swing trading—running side-by-side from a single codebase. The app must pull real-time market data and place live orders across all major asset classes, so please factor in direct integration with: • Stock market APIs • Cryptocurrency exchanges • Forex market feeds Key expectations • Low-latency data capture with WebSocket or equivalent streaming. • Strategy engine that can be toggled per asset, with configurable parameters and risk limits. • Unified order-routing layer capable of handling spot, margin, and conditiona...

    €145 Average bid
    €145 Gebot i.D.
    18 Angebote

    I’m ready to turn my idea into a fully-functional Android application and need a developer who can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: ...

    €9 / hr Average bid
    €9 / hr Gebot i.D.
    15 Angebote

    We need a mobile app similar to OLX (not exactly the same). Features required: User registration with Aadhar verification One-time platform fee for posting ads Categories & subcategories with listing system In-app chat and call feature Admin panel & secure payment integration Please share your tech stack, timeline, budget, and similar work experience.

    €366 Average bid
    €366 Gebot i.D.
    74 Angebote

    Our mobile app is already live on a staging domain, built with React Native, Node.js (Express) and MongoDB. I now need a full-stack developer who can dedicate the next seven days to finish three key items and move everything to our official domain. 1) Community auto-membership Every new registrant should be placed into the correct in-app community automatically when their professional email domain matches one that we map in the database. No manual steps—just detect, assign and save. 2) OTP email verification Before the first login the user must confirm ownership of that professional address. Generate a one-time six-digit code, send it via email, and allow a single attempt window with proper resend limits and expiry logic. 3) Production deployment The existing backend and adm...

    €97 Average bid
    €97 Gebot i.D.
    56 Angebote

    I have a fully-functional ERP written in core PHP with a MySQL backend. The next milestone is an Inventory Management module dedicated exclusively to stock tracking. No supplier or order features are needed at this stage. What I need built • Database changes to record products, stock movements (in, out, adjustments) and current on-hand quantities. • Clean, responsive PHP screens that blend with the existing UI for item setup, stock transactions and a real-time stock level dashboard. • Basic search, filter and export to CSV so staff can pull quick counts. • Low-stock thresholds with email alerts (SMTP already configured in the system). • Clear install/merge instructions and brief user documentation. Acceptance The module must install without breaking e...

    €96 Average bid
    €96 Gebot i.D.
    46 Angebote

    We are looking for an experienced AI/Backend Engineer (or small team) to help design and implement a foundational setup for an enterprise “Agentic AI” goal is to enable a prompt-based interface where business users can ask questions and trigger actions across internal risk management and document systems through a governed API layer. This is NOT a chatbot UI project focuses on backend architecture, AI orchestration, and secure enterprise integration. Target application includes IBM OpenPages SaaS (GRC) accessed via REST APIs. The first phase will implement a proof-of-concept that allows an AI agent to retrieve and update structured records using approved APIs via a secure middleware service. Scope of Work (Phase-1: Foundational Setup) Build a secure middleware API servic...

    €76 Average bid
    €76 Gebot i.D.
    24 Angebote

    The developer should build a cross-platform AI-powered IT Help Desk agent and management system that supports Windows, Linux, and macOS. The system must include a backend API (preferably in Python FastAPI or Node.js) to handle ticket management, device registration, and command distribution, along with a secure database (PostgreSQL) and an optional vector database for AI knowledge retrieval. The agent itself should be written in a compiled language like Go for cross-platform deployment, capable of registering devices, reporting system info and heartbeat, detecting missing patches, restarting services, and executing safe commands remotely. The AI component should analyze incoming IT tickets, automatically suggest fixes, and optionally execute auto-remediation commands when safe. All communi...

    €508 Average bid
    €508 Gebot i.D.
    141 Angebote
    Deploy Server-Side Python Script
    6 Tage left
    Verifiziert

    • Description We have a small Python script which needs to be put on the server-side as an API. Excluding the GUI code and comments, the script has about 750 lines. You will be given a VPS, which the API will allow downstream applications to call the engine for data comparison. We need multiple real-time endpoints for downstream applications. For testing purposes, we will set the maximum to 3 for now. Ultimately, it can be scaled to an unlimited number of real-time comparisons. I suppose we will have multiple copies of the comparison code on the same/different servers, but with three REST API endpoints. Hence, the Python script will be split into server and client-side code. As there are multiple data points to be compared with, we are thinking that the web app will first initiate...

    €165 Average bid
    €165 Gebot i.D.
    123 Angebote

    I need a series of scenarios that connect ShipHero’s API with several online storefronts. The focus is on three core workflows: • Order processing – every new or updated order placed in the storefront must appear in ShipHero in near real-time. • Inventory management – stock level changes inside ShipHero should automatically update the corresponding product in each store. • Shipping updates – when ShipHero produces a label or tracking event, that information has to flow back to the customer’s order in the store. I already have the official ShipHero API documentation and can give you the credentials right away. Each storefront (think Shopify, WooCommerce, Magento, and others we decide on) will need its own well-named, modular scenario so I ...

    €125 Average bid
    €125 Gebot i.D.
    129 Angebote

    Project Overview We are looking for a developer to build and integrate a professional AI chatbot for our platform, Proxima Study. The goal is to allow students to ask questions on the front-end and receive answers generated by leading AI models (ChatGPT and Gemini) through a secure back-end bridge. Scope of Work Chat Interface (Front-end): A clean, user-friendly chat bubble/window on our website where students can type questions. It must support "streaming" (where text appears word-by-word) so users aren't waiting on a loading screen. The Bridge (Back-end): Develop a secure middleman (API) that takes the student’s question, sends it to OpenAI or Google Gemini, and brings the answer back to the website. AI Logic: Set up the system so I can easily toggle which AI mode...

    €110 Average bid
    €110 Gebot i.D.
    159 Angebote

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