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    ...zugänglich sein _______________________________________________________________________________________ Technische Mindestanforderungen Die Arbeit muss sich an folgende Vorgaben halten: - Backend: Python ≥ 3.9 mit Flask - Datenbank: MSSQL oder MySQL/MariaDB oder PostgreSQL - Webserver: Gunicorn (optional mit Nginx oder Apache) - Authentifizierung: Benutzerkonten mit Passwort + Registrierung - API: RESTful API, Authentifizierung ohne Browser möglich - Bereitstellung: Anwendung öffentlich erreichbar (Server/Cloud), mindestens 4 Wochen verfügbar - Source Code: vollständiges Git-Repository (GitHub / GitLab / Bitbucket), sauber kommentiert - Tests: dokumentierte manuelle oder automatisierte Tests inkl. Testprotokoll _______________________________________...

    €398 Average bid
    €398 Gebot i.D.
    60 Angebote

    ...Projektanforderungen: API-Integration: Integration der weclapp API und Allegro API, um Bestellungen, Produktinformationen, Lagerbestände und andere relevante Daten zwischen den Systemen auszutauschen. Automatisierung des Prozesses, damit Bestellungen, die auf Allegro gemacht werden, in weclapp erfasst werden, und Bestände sowie Produktdaten ebenfalls synchronisiert werden. Technologien: Erfahrung mit RESTful APIs und den spezifischen APIs von weclapp und Allegro. Sehr gute Kenntnisse in Python, JavaScript (Node.js) oder PHP für die Entwicklung von API-Integrationen. Kenntnisse im Umgang mit JSON-Datenformaten und der Datenübertragung zwischen verschiedenen Systemen. Erfahrung mit OAuth oder anderen Authentifizierungsmethoden, die für den Zugriff a...

    €1196 Average bid
    €1196 Gebot i.D.
    44 Angebote

    ...applicable. The integration must ensure that stock levels are updated in real-time, reducing the need for manual input and preventing discrepancies between the systems. 6. **API Integration and Technical Requirements** The integration will rely on APIs to facilitate communication between the ERP system and the fulfillment network. The development should ensure the following: - Support for RESTful APIs or other modern API standards. - Secure authentication methods, such as OAuth, API keys, or token-based systems, to protect data integrity. - Handling of data transformations between systems to ensure compatibility between the different data formats used by the ERP and fulfillment network. - Error handling and data validation to prevent issues with the data transfer p...

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

    ...exchanges: Developer Requirements for Triangular Arbitrage Bot General Requirements: 1. Experience in Financial Trading Bots: - Proven experience in developing and deploying financial trading bots. - Familiarity with triangular arbitrage strategies and concepts. 2. **Programming Skills**: - Proficiency in Python, JavaScript, or other relevant programming languages. - Experience with RESTful APIs and WebSocket APIs. - Knowledge of relevant libraries and frameworks for data handling and API interaction (e.g., Pandas, NumPy, ccxt). 3. **Security and Compliance**: - Experience with secure handling of API keys and sensitive data. - Knowledge of best practices in coding for security, including the use of environment variables and secure storage. #### Functiona...

    €6874 Average bid
    €6874 Gebot i.D.
    12 Angebote

    Wir suchen erfahrenen Full-Stack-Entwickler. 1. Frontend-Entwickler - HTML and CSS3 - JSON - RESTful API-Nutzung - Javascript - Rahmenbedingungen als Vue. js (bevorzugt) oder angular, Reagiere... - defensive Programmierungsprinzipien - GIT - Entwicklung geschäftsorientierter Lösungen, wie Dashboards etc. 2. Backend-Entwickler - PHP - PHP-Rahmen wie Slim - Aufwachsen - MariaDB, RabbitMQ, Redis - Linux - JSON - RESTvolle API-Entwicklung - defensive Programmierungsprinzipien - Sicherheit und Kryptographie - NGINX, Apach

    €47 / hr Average bid
    €47 / hr Gebot i.D.
    6 Angebote

    Zurzeit sind wir auf der Suche nach einem Java Entwickler (w/m/d). Anforderungen: • Mindestens 2 Jahre Berufserfahrung • Erfahrung mit GCP Cloud, Docker, ...Suche nach einem Java Entwickler (w/m/d). Anforderungen: • Mindestens 2 Jahre Berufserfahrung • Erfahrung mit GCP Cloud, Docker, Kubernetes, Java, Kotlin, Spring Boot, REST API • Erfahrung mit Cloud Technologien (vorrangig innerhalb der GCP) • Docker Container und Kubernetes • Java und Kotlin Erfahrung • Erste Erfahrung mit Micro Frameworks (Javalin) und • Kenntnis über (RESTful) API Development • Erfahren im Arbeiten von Agilen Teams Ort: Wien / remote Start: ab Jänner Auslastung: 100% Laufzeit: mittel – langfristig Wir freuen uns auf ...

    €31 / hr Average bid
    Lokal
    €31 / hr Gebot i.D.
    1 Angebote

    1. Frontend-Entwickler - HTML and CSS3 - JSON - RESTful API-Nutzung - Javascript - Rahmenbedingungen als Vue. js (bevorzugt) oder angular, Reagiere... - defensive Programmierungsprinzipien - GIT - Entwicklung geschäftsorientierter Lösungen, wie Dashboards etc. 2. Backend-Entwickler - PHP - PHP-Rahmen wie Slim - Aufwachsen - MariaDB, RabbitMQ, Redis - Linux - JSON - RESTvolle API-Entwicklung - defensive Programmierungsprinzipien - Sicherheit und Kryptographie - NGINX, Apach

    €33 / hr Average bid
    €33 / hr Gebot i.D.
    12 Angebote

    ...Infrastruktur als Docker Container - Web Server mit Nginx und PHP 7 - Database Server mit MySQL 5.7 - Socket Server (für Push-Benachrichtigungen und Instant-Updates) Architektur und Setup Datenbank-Struktur - Erstellung der Architektur zur Abbildung von Entitäten in Tabellen - Anlegen der Tabellen mit Foreign-Keys und Cascade Regeln - Anlegen von Beispieldaten Entwicklung API (Backend) - Restful API (CRUD-Schnittstellen) - Oauth Authentifizierung mit JWT - Custom Endpoints für Statistiken etc. - Custom Classes für Mailversand etc. - Rabatt-System (Stichwort Car-Branding) - Zeit-gebundenes Preismodell - Payment mit Stripe (exkl. Stripe-Account-Einrichtung) Entwicklung React-App (mit Material UI) - Frontend anhand Screen-Designs von - Kundenver...

    €293 Average bid
    €293 Gebot i.D.
    2 Angebote

    Jedliche art von Beratung und Programmierung in den folgenden Programmiersprachen: C+, C++, VB Python, Django, Django REST Framework JavaScript, TypeScript, Angular, HTML5, CSS Relationale Datenbanken: SQL, PostgreSQL, PostGIS, MySQL Agile Entwicklung, Scrum, Clean Code, RESTful APIs, API Design, Test-driven development, UML, Entwurfsmuster Docker, Solr, Elastic Search, Redis, Swagger, OpenAPI, GIT, Amazon AWS, Linux Branchenerfahrung Automotive, E-Commerce

    €1125 Average bid
    €1125 Gebot i.D.
    13 Angebote

    ...und Entwicklungsprojekten in direkter Interaktion mit allen Stakeholdern wie CTO und Produktmanagement • Du entwickelst sichere und skalierbare APIs • Du schreibst eleganten, wartbaren und getesteten Code Was bringst Du mit? • 3 oder mehr Jahre Erfahrung in der Entwicklung von Spring Boot basierenden Plattformen und APIs • Kompetenz in Systemarchitektur (Domain Driven Design) • Konzeption von RESTful APIs, verteilten Services und Infrastrukturen • Damit kannst Du umgehen: Amazon AWS (s3, ec2, SQS, RDS, SES, Elastic Beanstalk, Cloudfront, Lamda) • Erfahrung mit Git/Bitbucket und Build Systemen für CD/CI. • Du arbeitest gerne im Team, brauchst aber kein Micro-Management Was bieten wir Dir? • Wir wollen Spaß haben und etwas bew...

    €56 / hr Average bid
    €56 / hr Gebot i.D.
    2 Angebote

    ...Interaktion mit allen Stakeholdern wie Produktmanagement und Marketing • Du besitzt ein natürliches Gespür für funktionierende Interaktionskonzepte und visuelle Kommunikation • Die Programmierung von Web Frontend für alle Geräte ist Deine Leidenschaft Was bringst Du mit? • 2 oder mehr Jahre Erfahrung in der Entwicklung von React und andern Client-Seitigen Webapplikation • Erfahrung mit RESTful Apis, Git/Bitbucket und CI/CD Systemen • Nice to have: Erfahrung mit AWS Was bieten wir Dir? • Wir wollen Spaß haben und etwas bewegen mit unserer Plattform • Wir sind im Re-Start-Up Modus: Du kannst hier voll mitgestalten • 30 Leute teilen sich ein cooles Loft in Obersendling, hier findet man noch Parkpl&...

    €61 / hr Average bid
    Lokal
    €61 / hr Gebot i.D.
    8 Angebote

    Für abgeschlossene Projekte von Erweiterungen (Addons) suchen wir jemand zuverlässiges der fundierte Entwicklungserfahrung mit der Anwendung von C# und .NET und Kenntnisse in der Entwicklung mit ASP.NET und Restful-Webservices hat. Dabei handelt es sich um Standarderweiterung für unsere CRM Systeme und kundenbezogenen Aufträge mit einem Volumen von 10-60 Stunden / Monat bis November 2019 ggf. auch länger.

    €2130 Average bid
    €2130 Gebot i.D.
    17 Angebote

    Ich benötige eine einfachen in PHP geschriebenen Webservice, der über einen Parameter ein Passwort zurück gibt. Das Passwort soll aus einer MySQL Datenbank gelesen werden. "" Antwort: {"id":"5","username":"stefan","password":"$2y$10$"} Der Webservice soll über Basic Authentication abgesichert werden.

    €101 Average bid
    €101 Gebot i.D.
    4 Angebote

    ...Fullstack Webentwickler. Ihre Aufgaben • Entwicklung unseres backends in Node.js • Entwicklung einer NoSQL-Datenbank • Entwicklung unserer frontend Anwendung in AngularJS • Qualitätssicherung Ihrer eigenen Entwicklung und die Ergebnisse unseres Teams Ihr Profil • Mindestens 3 Jahre Erfahrung in Softwareentwicklung • Sie verfügen über fundiertes Wissen in Node.JS, MongoDB und in der RESTful API Entwicklung sowohl auf Server als auch auf Client Seite • Sie können mit SCRUM entwickeln • Sie können mit git als Softwaremanagement umgehen • Sie sind zuverlässig, kommunikativ und können mit unserem Team zusammenarbeiten • Sie können sich in Englisch verständigen • Teilnah...

    €32 / hr Average bid
    €32 / hr Gebot i.D.
    12 Angebote

    Gesucht wird ein ein Programmierer, der sich bestens mit dem Ionic 2 Framework auskennt. Programmiert werden soll eine recht simple Anwendung, welche folgende Möglichkeiten bieten soll: - Login - Registrierung - Eine "Home" Seite mit simpler GET Abfrage über die Backend API unter Verwendung des Usernamens Die Backend API (json, restful) steht bereits. Diese gibt beim Login einen Token zurück, der für weitere Requests benötigt wird. Vorrausetzungen: - Verwendung von Ionic2 - Verwendung von TypeScript - Strukturierte App (bzw. Ordner) Struktur nach best practises Ich freue mich auf Angebote.

    €191 Average bid
    €191 Gebot i.D.
    3 Angebote

    Sie erstellen eine Webanwendung mit dem Framework AngularJS. Ihre Mitwirkung an einer Mischung aus Spiel und Analysewerkzeug im Sportbereich erlaubt Ihnen eine Beteiligung an einem Innovativen Projekt mit Zukunftspotential. Sie realisieren die Webanwendung mittels HTML, JavaScript und CSS und binden diese über RESTful APIs an die Datenstrukturen der Backends, welche auf dem PHP Framework Zend basieren, an. Erleben Sie ein Team aus engagierten dynamischen Playern die mit agiler Softwareentwicklung eine hochqualitative Lösung produzieren.

    €4969 Average bid
    €4969 Gebot i.D.
    8 Angebote

    German: Für kleinere Projekte suchen wir Unterstützung durch Freelancer/-innen für unser Team im Bereich Entwicklung / Programmierung. Anfragen bitte gerne per Email. Es besteht die Möglichkeit in unseren Firmenräumen direkt an einem eigenen Arbeitsplatz zu arbeiten. English: We are searching for talented freelancer who support us in developing / programming software (Laravel 4.2 / 5.0, RESTful APIs, Frontend-Development with Backbone.js/Marionette, Twitter Bootstrap). Please feel free to send us your inquiries.

    €22 / hr Average bid
    €22 / hr Gebot i.D.
    9 Angebote

    ...über den Webbrowser Zugriff auf die jeweiligen berechtigten Heizungsanlagen bekommt. Hier geht es also um eine Userverwaltung, Kesselverwaltung, Front & Backend mit noVNC Integration. Der Arbeitsumfang umfasst folgenden 4 Module: VNC-Manager - verwalten von VNC Verbindungen my.Heizung-Cmd-Server - Kommunikation über Sockets mit der Kesselsteuerung - verschlüsselte Verbindung RESTful Webservice - DB Verbindung - HTTPS Kommunikation mit Clients - Benutzerauthentifizierung und Verwaltung - Datenverwaltung von Kesseln - Anwendungskonfiguration Frontend - 3 Useransichten: „Betreiber“, „Kundendienst“, "Hersteller/Admin" - i18n (Internationalisierung) über externe Sprachdateien - VNC Darstellung - D...

    €2114 Average bid
    €2114 Gebot i.D.
    5 Angebote

    ...abwechslungsreiches und positives Arbeitsumfeld. Für die Funktion des Web Application Entwickler (m/w), bringen Sie folgende Voraussetzungen mit: • Mehrere Jahre Berufserfahrung in der Web-Entwicklung und Web-Projekten (mind. 1 großes Web-Projekt) • Ausgezeichnete Kenntnisse in HTML, Javascript, CSS und .NET • Gute Kenntnisse mit Telerik Controls • Gute Kenntnisse mit Webservices auf SOAP und RESTFUL Basis • Entwurfsmuster setzen wir als selbstverständlich voraus • Gute Kenntnisse in VB.NET von Vorteil oder alternativ C# • Gute Kenntnisse in SQL-Datenbanken • Ausgeprägte Dienstleistungseigenschaften und Wertschätzung im Umgang mit Kunden • Ausgeglichene Persönlichkeit auch bei schwierigen Pr...

    €5266 Average bid
    €5266 Gebot i.D.
    10 Angebote

    ...programmed to a marketplace (). The XML interface is a RESTful web service. The interface should allow to set new products, update or delete existing ones. Marketplace categories should own can be uploaded or downloaded. The queries and processing orders to be possible. Everything directly from the webshop. Documentation and definitions of the variables are shown in the appendices. Further details at: AUF DEUTSCH: Für einen bestehenden Magento-Webshop soll eine XML-Schnittstelle zu einem Marktplatz () programmiert werden. Die XML-Schnittstelle von ist ein RESTful Webservice. Die Schnittstelle soll ermöglichen, neue Produkte einzustellen

    €186 Average bid
    €186 Gebot i.D.
    4 Angebote

    ...experience will also be considered • Proven track record of building and deploying web applications • Portfolio or GitHub profile showcasing relevant projects Technical Skills: • Frontend: React.js/Next.js, HTML5, CSS3, JavaScript/TypeScript, responsive design • Backend: Node.js, (or similar framework) • Database: MongoDB/PostgreSQL, database design and optimization • API Development: RESTful APIs, API integration • Version Control: Git/GitHub • Authentication: JWT, OAuth, session management • Payment Integration: Experience with Razorpay/Stripe/PayPal or similar • Deployment: AWS/Google Cloud/Azure, basic DevOps knowledge Nice to Have: • Real-time features (WebSockets, ) • E-commerce platform experience • Marketpl...

    €1767 Average bid
    €1767 Gebot i.D.
    16 Angebote

    ...server that can authenticate users, deliver messages instantly, store chat history, and scale as the user base grows—all without the overhead of group or public room logic. I’m open to proven stacks such as Node.js with WebSocket/, Go with gRPC, or an equivalent solution that plays nicely with iOS and Android clients. End-to-end encryption, push-notification hooks (FCM / APNs), and a RESTful or GraphQL API for ancillary data are highly desirable. Deliverables • Production-ready server code with clear setup instructions • Secure user authentication and encrypted message transport • Message persistence (MongoDB, PostgreSQL, or similar) with indexing for quick retrieval • Simple admin endpoint or dashboard for basic monitoring • Post-de...

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

    ...be production-ready: • Designed to minimise support scarring • Avoid fragile protrusions • Balanced weight distribution • Stable when mounted • Suitable for repeat manufacturing Experience designing objects for physical production is strongly preferred over purely digital character work. Aesthetic Direction The sculpture should feel: • Timeless • Elegant • Anatomically believable • Calm and restful • Sculptural rather than toy-like Please avoid cartoon styling or exaggerated proportions. This is intended to sit firmly in the premium memorial product category I have included a concept image to communicate the emotional tone and general posture I am aiming for. This should not be interpreted as a final design, and I strongly w...

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

    I need a versatile full-stack developer with 2–5 years of hands-on experience who can move comfortably between back-end logic and front-end polish. On the server side you’ll work mainly in Python, building and extending services written in Django and Flask, so solid understanding of ORM, RESTful patterns, middleware and deployment on Linux-based environments is critical. The front-end layer is flexible. If you are productive with React, Angular, Vue or a comparable framework and can translate product ideas into clean, responsive interfaces, that works for me—what matters is the quality of the user experience you deliver. Creativity, readable code and proactive communication are essential. I tend to sketch concepts loosely and rely on you to flesh them out, sugges...

    €3118 Average bid
    €3118 Gebot i.D.
    24 Angebote

    ...working directly with me; I’ll walk you through the current repository, explain the backlog in Git, and hand over access to our staging server so you can ship updates quickly. Because the project is already in production, I need clean, modular code, familiarity with modern React hooks, and an eye for maintaining consistency with our current styling approach (we’re on CSS-in-JS). A solid grasp of RESTful APIs and version control in Git is a must, as those are central to the workflow here. Deliverables I’m tracking: • Updated React components pushed to the repo and merged without conflicts • Fully functional local build that mirrors staging • Brief hand-off note or Loom walkthrough explaining the changes If you’re nearby, we can even ...

    €60 Average bid
    €60 Gebot i.D.
    12 Angebote

    ...enterprise-grade project portal developed for CISCO to manage, monitor, and streamline internal project workflows, data processing, and user interactions across multiple teams. The platform is built using a microservices architecture to ensure scalability, high availability, and performance. Roles & Responsibilities: Designed and developed scalable backend microservices using Java and Spring Boot, following RESTful and domain-driven design principles. Implemented microservices architecture with inter-service communication and centralized configuration. Developed event-driven workflows using Apache Kafka for asynchronous data processing and system decoupling. Integrated Redis caching to improve application performance and reduce database load. Built and optimized REST APIs con...

    €8 / hr Average bid
    €8 / hr Gebot i.D.
    11 Angebote

    ...building a nonprofit smart-locker network and need a developer to stand up the entire backend plus a lightweight web dashboard. The lockers will be opened only after a biometric match—ideally fingerprint or facial recognition—so the API you create must handle secure enrollment, matching, and audit logging without ever storing conventional IDs, phone numbers, or payment data. Core requirements • RESTful (or GraphQL) API hosted on AWS, with a clean data model for lockers, users, and biometric templates • Biometric logic that can accept fingerprint or facial recognition data, hash it securely, and return match / no-match results in under two seconds • Automatic locker assignment, occupancy tracking, and remote release commands, exposed through a sim...

    €8527691 Average bid
    €8527691 Gebot i.D.
    103 Angebote

    ...API Keys, etc.) Handle data validation, error handling, and performance optimization Write clean and maintainable code Provide API documentation (Postman / Swagger preferred) Testing and debugging ✅ Required Skills: Strong experience in Node.js & Strong experience in React.js Experience working with third-party APIs Database knowledge (MongoDB / MySQL / PostgreSQL) Experience with RESTful API architecture Knowledge of authentication and security best practices Git version control experience ✅ Project Scope: API development for third-party application integration Frontend API integration support (if required) Documentation and testing Possible long-term collaboration based on performance...

    €606 Average bid
    €606 Gebot i.D.
    136 Angebote

    We are seeking an experienced React Native (Expo) developer to assist in implementing Bill of Lading (BOL) data flows and user interface within our dedicated driver mobile application. The ideal candidate will have a strong background in mobile app development and a keen eye for user experience. You will work closely with our...background in mobile app development and a keen eye for user experience. You will work closely with our design and product teams to ensure a seamless integration of BOL functionalities. If you are passionate about creating efficient and user-friendly mobile applications, we would love to hear from you! Relevant Skills: - React Native (Expo) - Mobile App Development - UI/UX Design Principles - RESTful API Integration - Version Control (Git) - JavaScript - And...

    €7 / hr Average bid
    €7 / hr Gebot i.D.
    99 Angebote

    ...let users create profiles, post updates, follow friends, and exchange private messages—nothing overly complex at first, but the foundations should be solid enough to grow. Here’s what I need delivered: • A responsive front end (React, Vue, or similar) with clean, modern UI components for feed, profile, and messaging. • A secure back end (Node.js, Django, or comparable framework) that exposes RESTful endpoints and handles authentication, user relationships, and real-time notifications. • A lightweight admin panel to moderate content and manage users. • Deployment scripts or documentation for hosting on a mainstream cloud platform (AWS, GCP, or Azure). I’ll provide branding assets and wireframes once we start. Code quality, clear commit...

    €19 / hr Average bid
    €19 / hr Gebot i.D.
    84 Angebote

    ...uncover patterns autonomously, and feed those insights into the application’s decision engine. Here is what I have in mind: data lands in an Azure Data Lake, is processed through Azure Databricks or Synapse, and the unsupervised models (clustering and anomaly-surfacing techniques are likely candidates) are trained and versioned in Azure Machine Learning. Model output then needs to be exposed via a RESTful endpoint, secured with Azure AD, and consumed by the front-end service. Everything must be CI/CD-enabled—GitHub Actions or Azure DevOps—so new experiments can move smoothly to production. Deliverables • Design document outlining the end-to-end Azure architecture • Reproducible training notebooks / scripts for the unsupervised models • Aut...

    €47 / hr Average bid
    €47 / hr Gebot i.D.
    43 Angebote

    ...readable, and highly reliable code. Technical Requirements Expert-Level PowerShell: Proven experience in real-world automation beyond simple Task Automation; you should be comfortable with advanced functions and script architecture. Windows Internals: A strong understanding of how Windows operates under the hood (Registry, permissions, and system services). API Proficiency: Solid experience handling RESTful services and web requests via PowerShell. Security & Identity: Good familiarity with Active Directory, Microsoft Entra ID (formerly Azure AD), and Microsoft Intune management concepts. Troubleshooting: Exceptional debugging skills and the ability to identify edge cases in script execution. The Ideal Candidate You are a self-directed engineer who doesn't just "w...

    €10 / hr Average bid
    €10 / hr Gebot i.D.
    14 Angebote

    ...application security, data protection, and best coding practices Required Skills & Qualifications: Bachelor’s degree in Computer Science, IT, or equivalent experience Strong understanding of programming fundamentals and software development lifecycle Experience with HTML, CSS, JavaScript, and at least one backend language Familiarity with databases such as MySQL, PostgreSQL, or MongoDB Knowledge of RESTful APIs and MVC architecture Experience with frameworks (e.g., React, Angular, Laravel, Django, or Spring) Strong problem-solving and analytical skills Ability to work independently and in a team environment Preferred Qualifications: Experience with cloud platforms (AWS, Azure, or Google Cloud) Familiarity with DevOps tools and CI/CD pipelines Understanding o...

    €13 / hr Average bid
    €13 / hr Gebot i.D.
    122 Angebote

    ...verifiable proof. You must build a database and front-end dashboard that stores and serves geotagged data (GPS coordinates and timestamped photos) for every single unit of impact. Users must be able to verify their specific contribution through a unique digital certificate or a live tracking link. Technical Requirements: Backend: Scalable architecture (Node.js, Python, or Go) with well-documented RESTful endpoints. Database: A NoSQL approach (like MongoDB or DynamoDB) is preferred to handle the rapid scaling and diverse data types (images/coordinates) required for millions of records. Security: Airtight data security and settlement logic to ensure every dollar collected is accounted for and matched to a verified event. Frontend: A lightweight, clean UI for a "Client Imp...

    €1398 Average bid
    €1398 Gebot i.D.
    40 Angebote

    ...private Git repository and staging server. • Document and prioritise fixes or improvements we agree on, then tackle them in small, testable milestones. • Push clean, well-commented code to Git, verify on staging, and help me roll changes to production once everything checks out. Core stack in use is modern HTML/CSS/JS with a popular front-end framework (React). The back end runs on Node, RESTful APIs, and a SQL database. Familiarity with performance tuning, accessibility best practices, and basic SEO is highly valued. Deliverable for each milestone 1. Updated source code committed to the repo 2. Short change-log outlining what was done, why, and any follow-up items 3. Confirmation that the feature or fix works on staging If you have recent examples of website...

    €170 Average bid
    €170 Gebot i.D.
    127 Angebote

    PROJECT SUMMARY A secure collaboration platform for ...client access here) • Pre-signed URL access • Storage sorting by file size • Backup storage toggle CLIENT: • Client can see the projects and versions of projects inside project directory • Client can upload requirements for upcoming versions • Client can manage backups generated for current projects • Client can give approval to delivered version • Email otp confirmation for acceptance/approval • RESTful API for client project backups uploads/downloads (Takes project name, project id input) Preferred tech stack : Java spring boot, Angular, postgresql, s3 compatible object storage This is very straightforward project if already worked on s3 compatible APIs. This is time sensitive p...

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

    - 8 Hours a day, Morning Hours, Indian Standard Time, - Monday to Sat, - 3 to 4 years experience in Laravel APIs - Use time tracker during work, - Sign a copyright agreement with ID before sending the code. Nature of work: A- Converting Restful API to GraphQL APIs, B- Creating New GraphQL APIs

    €10 / hr Average bid
    €10 / hr Gebot i.D.
    23 Angebote

    ...end-to-end product development: planning features with our product managers, writing clean and well-documented code, performing peer reviews, and shipping stable releases on a regular sprint cycle. We handle both web and mobile solutions, so a strong command of at least one modern back-end language (Java, Python, Node.js) and a front-end framework (React, Angular, or Vue) is essential. Familiarity with RESTful API design, Git-based workflows, and cloud deployment (AWS or Azure) will help you hit the ground running from day one. Successful delivery means: • Contributing production-ready modules that pass our automated CI/CD pipeline and peer review • Documenting architecture decisions in concise technical notes • Pairing with junior developers to share best practic...

    €419 Average bid
    €419 Gebot i.D.
    128 Angebote

    I need a hands-on full-stack developer who can own both the C#/ASP.NET Core back-end and a React front-end. The immediate focus is to build, test, and maintain a scalable web application that cleanly separates concerns yet feels seamless to the end user. On the server side you’ll architect RESTful endpoints with ASP.NET Core Web API, wire them to MS SQL Server, and keep performance in check through efficient queries and thoughtful caching. On the client side you’ll create reusable React components, manage state responsibly, and make sure the UI stays snappy across modern browsers. I expect clean, well-documented code, meaningful unit tests, and proactive communication when a requirement needs clarification. Collaboration is part of the daily routine: you will coordinat...

    €71 Average bid
    €71 Gebot i.D.
    19 Angebote

    My Laravel web application is already 80 % built and running on a staging server. I now need a seasoned Laravel developer to step in, review w...Trello marked “Done” and merged into the main branch • All routes returning the expected JSON or Blade output with no 5xx errors in the logs • php artisan test passes without failures and new critical paths are covered by basic tests • Fresh install instructions verified on a blank server (I’ll provision one for you) Tech stack you should be comfortable with: Laravel 10, PHP 8.x, MySQL, Git, RESTful API consumption, and a dash of front-end tweaking with Blade/Tailwind. Once everything is stable, wrap up with a brief handover note so I can maintain the codebase confidently. If this sounds like your ki...

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

    ...need a developer who can turn that plan into a clean, production-ready application. Core features we must deliver: • User authentication – secure sign-up, log-in, and role-based access • Data visualization – interactive charts/graphs that pull from our REST endpoints • File upload & download – reliable handling of documents up to 50 MB, with progress indicators The back-end will expose a RESTful API in Node.js (Express is fine), connect to a PostgreSQL database, and include JWT-based auth plus basic rate limiting. On the front-end, React (hooks, functional components) should consume those endpoints, render charts in something like Recharts or , and manage state with Redux Toolkit or Context. I’ll provide database schema, wireframe...

    €445 Average bid
    €445 Gebot i.D.
    238 Angebote

    I need you to build a full-featured ERP system t...and detailed scheduling that update inventory automatically. • Quality Control – batch-linked test results and release approvals accessible from the same dashboard. I am open to a modern stack of your choice—Python/Django, Java Spring, .NET, Odoo or similar—as long as the code is well-documented, version-controlled and deploys to our on-premise server. A central database, responsive UI and RESTful APIs for future scanner or mobile integrations are mandatory. Acceptance criteria: working prototype on our staging server, repo access with setup guide, and a brief video walk-through showing the three modules handling a complete production cycle. Weekly check-ins and incremental demos will keep us on track for ...

    €6860 Average bid
    €6860 Gebot i.D.
    189 Angebote

    I’m extending an in-house web application and need a React specialist who can work on-site in Hyderabad for the duration of the sprint. The core UI is already scaffolded; what’s missing is the feature layer and the API wiring. Here’s what you’ll be shaping: • Integrate RESTful APIs, GraphQL endpoints, and several third-party services directly into the React codebase, ensuring consistent error handling and state management. • Build secure user authentication flows (signup, login, token refresh) that hook cleanly into our existing backend. • Add real-time notifications—WebSocket or SSE is fine as long as latency stays low and the UI updates smoothly. • Implement reusable data-visualisation components (think charts, graphs, dash...

    €512 Average bid
    €512 Gebot i.D.
    57 Angebote

    Looking react developer to design and development of a modern, responsive, and high-performance web application using React.js The work will involve UI development, API integration, and performance optimization. The website will communicate with backend services through RESTful APIs to fetch and manage dynamic data. Performance optimization techniques such as lazy loading, code splitting, and memoization will be applied to ensure fast load times and smooth interactions.

    €11 Average bid
    €11 Gebot i.D.
    63 Angebote

    Rol...implementation and management of CI/CD pipelines for automated cloud deployments • Collaborate with our backend and agent build teams • Enable the team to work autonomously by documenting and transferring knowledge Required Skills & Experience • Strong React (Native) + Typescript skills • Demonstrated portfolio or code examples of previous work • Strong experience in Tailwind • Ability to integrate with RESTful backend APIs • General software engineering best practices • Ability to work independently and support knowledge transfer to internal teams Preferred Skills • Experience with chat apps and micro frontends • Familiarity with Teams bot framework and adaptive cards • Knowledge of data visualization libraries (e...

    €5 / hr Average bid
    €5 / hr Gebot i.D.
    32 Angebote

    ...stack that lets me generate unique payment addresses, confirm the transfer, and surface the confirmation back to my app in real time. Here’s what I need the finished package to do: • Solidity smart contract deployed on Ethereum mainnet (initially Kovan/Goerli for testing) that logs each payment, enforces one-time use, and emits an event my backend can listen to. • Lightweight Web3 interface or RESTful webhook that notifies my server once a transaction reaches a configurable confirmation depth. • Simple front-end snippet (HTML/JS) that shows the client the exact amount in ETH and the destination address or QR code. • Clear developer documentation, including how to redeploy the contract, rotate the receiving wallet, and test locally with Hardhat or ...

    €434 Average bid
    €434 Gebot i.D.
    110 Angebote

    ...only the data and actions relevant to each role, with a secure login, password reset and permission controls baked in from the start. Technical expectations – Any stable stack you are comfortable with (Laravel, Django, Node/React, etc.), provided it is well-documented and easy to deploy on a standard cloud server. – Responsive design that works smoothly on desktop and mobile browsers. – RESTful APIs or equivalent so new modules can be added later. – Source-controlled deliverables and an installation guide I can follow without guesswork. Acceptance criteria 1. All three modules operate error-free under load testing with sample data. 2. Role permissions prevent cross-access to restricted information. 3. Reports export cleanly to CSV/PDF. 4....

    €608 Average bid
    €608 Gebot i.D.
    121 Angebote

    Assalam o alaikum, I am looking for electrical engineers having expertise in f...following areas:  Embedded C Programming.  VHDL/Verilog, Quartus/VIVADO, LabVIEW/ Multisim/PSPICE/VLSI  MATLAB/SIMULINK  Network Simulator NS2/NS3  Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32.  IDEs like Keil MDK V5, ATmel studio and MPLab XC8.  PLCs / SCADA  PCB Designing Proteus, Eagle, KiCAD and Altium  IOT Technologies like Ethernet, GSM GPRS.  HTTP Restful APIs connection for IOT Communications. Actually I have multiple projects in different domains of electrical engineering and I already have a team of engineers working on them but due to workload I am looking for few more engineers to be a part of my team and work with us on regular basis.

    €161 Average bid
    €161 Gebot i.D.
    32 Angebote

    ...Record access ○ Record edits ● Digital consent forms ● Automated backups ● Data export tools ● High-level patient privacy and security 6. Multi-Branch & Scalability ● Central admin dashboard ● Cross-branch patient records ● Unified reporting across branches ● Scalable Laravel architecture for future mobile apps 7. Technical Architecture – Laravel-Based Approach Backend ● Laravel (latest LTS) ● RESTful API architecture ● Secure authentication (Laravel Sanctum / Passport) ● Role & permission management ● Queue jobs for notifications and reports Frontend ● Laravel Blade ● Responsive UI (desktop, tablet, mobile) ● RTL-safe Arabic UI Database ● MySQL ● Encrypted sensitive fields ● Optimized for medical records Infrastructure ● Cloud hosting ● Automated backups ● Scalable...

    €602 Average bid
    €602 Gebot i.D.
    146 Angebote

    ob Title: Senior Backend Architect: Automated Vehicle Valuation Engine & GHL Integration Project Overview: We are building a car buying website that will give instant, a high-volume ve...integration via GHL API v2 to handle lead tagging, instant SMS triggers, and title photo uploads. Database Management: Implement a database to track all historical quotes and auction outcomes for a feedback loop. Efficiency: The entire calculation must be optimized for 3s latency. Required Skills: Languages: Python (Selected), Node.js, SQL. APIs: API Development (Selected), API Integration, RESTful Architecture, Webhooks. Database: PostgreSQL or MongoDB. Automation: Experience with GoHighLevel automations and Twilio API. Bonus: Headless browser automation (Playwright/Puppeteer) for pri...

    €25 / hr Average bid
    €25 / hr Gebot i.D.
    201 Angebote

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