Datenbankdesign Jobs

I’m building an internal security tool and need a solid PostgreSQL foundation that starts as a single, multi-tenant database yet can be cleanly split into separate databases—and separate servers—later on. The first release will concentrate on storing architectural components (a very well defined structure) alongside threat-intelligence data (mapped to the components metadata), so the schema must keep cross-tenant isolation strict while still allowing swift relational join matching across those two domains. What I need from you • A full relational schema (ERD and DDL) optimised for multi-tenant operation—think shared-table with isolated tenant-id or schema-per-tenant, whichever you can justify—and documented so the eventual extraction path is clear. &...

Create one instance of CRM Software in HTML and using Ruby Rails. Import data from CSV file into predetermined fields

I have a Google AI Studio frontend built with Vite that is already running perfectly in the browser; what it lacks is a solid, secure connection to a MySQL database on Hostinger and a smooth path to go live. I need you to come in, design the database schema from scratch, build the API layer in either Node.js or PHP (I’m open to whichever you are strongest with), wire everything together for full CRUD capability, and then deploy the whole stack to my Hostinger account. The hosting account exists but is still in its default state, so you will also handle the basic domain + hosting setup on Hostinger before pushing the code. Security best-practices for credentials and connections are a must, as I plan to take real user data immediately after launch. Key deliverables • Database ...

I need a full‑stack developer or small dev team to integrate the Roku Ads / Demand API and build a white‑labeled advertising dashboard for my broadcasting business. The goal is to have a self‑serve style interface where we can manage campaigns, view performance, and provide reporting to clients. Key requirements: Strong experience with REST APIs and OAuth Experience integrating advertising or analytics APIs (Roku Ads, Google Ads, Meta Ads, or similar) Backend in Node.js, Python, or similar modern stack Frontend dashboard with authentication, user management, and role‑based access Reporting views for impressions, spend, conversions, and other key metrics Ability to pull and aggregate data from Roku and potentially other ad platforms into a single UI Nice to have: Experience with Ro...

I need a lean, working web application that lets teachers publish courses and students immediately start learning. The priority is speed to a usable MVP rather than polish, so clean, well-structured code and a straightforward interface matter more than pixel-perfect design. Scope of the first release • Authentication: only email + password, securely hashed, with clear separation between teacher and student privileges. • Course workflow: – Teachers create, edit and delete courses, then add lessons that can contain plain text or embedded video. – Students browse the catalogue, enroll, and view each lesson. • Homework loop: teachers post an assignment; enrolled students submit their work; the teacher can review it inside the platform. • Notifi...

The goal is to design a future-proof relational backbone for a multi-channel retail platform, built natively on PostgreSQL. I already run an operational system, and its live transactional records will have to be migrated into the new structure without downtime. Everything else—users, inventory, orders—will start fresh. Core design expectations The operational schema should be fully normalised to 3NF and optimised from day one for high concurrency. Think table partitioning (range and list), well-chosen GIN and B-Tree indexes, plus JSONB columns where semi-structured flexibility makes sense. Triggers, constraints and stored procedures must enforce business logic consistently, so the application tier can stay lightweight. Analytics layer Alongside the OLTP schema I need a se...

I need a senior Delphi mind to craft a clear-cut strategy for moving an existing application from the Borland Database Engine to FireDAC with SQL Server as the back end. The objective is full modernization: cleaner code, easier maintenance, and freedom from legacy BDE constraints. I will spin up a dedicated testing environment first, so your plan must assume zero changes touch production until every issue is ironed out. Please lean on practical experience—show me similar projects you have already steered; past work is my main filter when choosing who to collaborate with. Deliverables • A written migration roadmap outlining phases, timelines, and required tooling • A checklist for preparing the test instance (drivers, FireDAC components, SQL Server settings, connec...

A responsive frontend web application built for a photography business to showcase services, portfolios, and client information. The platform focuses on clean UI design, smooth navigation, and optimized performance. It is deployed on cloud infrastructure and structured for scalability and future backend integration. Link:

I’ve put together the entire front-end of my React Native app and now I’m ready to connect it to a real backend. During a live Zoom or Microsoft Teams session I want to screen-share and work side-by-side while you guide me through each step. Supabase is the database service I’d like to use (or firebase), though I’m open to brief comparisons with Firebase if a decision point comes up. I have no prior backend experience, so you’ll need to walk me through project structure, environment variables, and deployment best practices. Whether the supporting server logic ends up in Node.js or another lightweight option, keep everything clear and beginner-friendly so I can maintain it afterward. We must cover: • Authentication setup – phone OTP authentication....

I need a cloud database setup using either AWS, GCP, or Azure. The database should support both SQL and NoSQL. Requirements: - Experience with at least one major cloud provider (AWS, GCP, or Azure) - Proficiency in both SQL and NoSQL databases - Ability to design and implement secure, scalable, and efficient cloud databases - Knowledge of best practices for cloud database management and maintenance Ideal Skills: - Cloud architecture design - Database administration - Security compliance in cloud environments - Performance tuning and optimization Please provide examples of similar work done.

Busco a un desarrollador con experiencia en aplicaciones web y móviles para crear una plataforma de Control Preventivo dirigida al sector HVAC. Alcance clave • Usuarios previstos: Técnicos y Gerentes podrán iniciar sesión con distintos niveles de acceso y permisos. • Funcionalidades imprescindibles: – Seguimiento de mantenimiento para programar y registrar tareas preventivas. – Informes y análisis que consoliden datos de equipos y muestren métricas de desempeño. – Notificaciones y alertas automáticas por correo, push o SMS cuando se acerquen fechas críticas o se detecten anomalías. • Acceso multiplataforma: la interfaz debe adaptarse correctamente a computadoras de es...

I need a robust asset management database designed to track the location of physical assets like equipment and machines. Essential Features: - Real-time tracking of asset location - Maintenance history logging - Asset condition reports - Detailed asset movement logs - Current asset status updates - Tracking for both serialized and non-serialized assets - End-of-life tracking - Fault reporting - Comprehensive logs of actions taken (who did what and when) - Asset location data The ideal candidate should have experience in database design and management, particularly with real-time tracking systems. Familiarity with asset management protocols and strong attention to detail is essential.

Hi! I’m building an AppSheet project tracker for an engineering firm and I’m looking to hire an experienced AppSheet consultant for ongoing advisory help as I build the app myself. What I’m building Project tracker for an engineering firm * ~300 projects per year * Google Sheets backend (for now) * Intermediate complexity app (multiple related tables, workflows, status tracking, etc.) The kind of help I want I’m NOT looking for someone to build the whole app for me. I want someone who can support me with: * Architecture and best-practice guidance * Expression and slice troubleshooting * Automation design and reliability * Performance and scaling tips for Sheets + AppSheet * Security/filtering strategy (if needed) Key feature / challenge A major requirement is a...

i want to create MS Access database sheet requirement database not to big or hard Database Requirement Explanation I belong to the Indian Army. My unit has a strength of approximately 445 personnel. Every year, individuals remain embodied (on service) and disembodied (service break) for varying periods, usually ranging from 1 to 4 months at a time. I want to create a database (preferably in MS Access) where each individual has a separate profile, and all service periods are calculated automatically. ⸻ Individual Profile Requirements Each individual profile should contain: • Army Number • Rank • Name • Date of Enrollment Example: Army No: 1245 Rank: Sepoy Name: Pankaj Date of Enrollment: 01 Dec 2015 ⸻ Embodiment / Disembodiment Logic For each individual, there can be m...

I want a purpose-built Airtable base that lets my project managers track every $ that flows through a job while giving me, as the owner, a clear tick-off control for supplier payments. What the base must do • Cost management and calculations – an input for estimated cost, an input for actual cost, and an automatic profit-margin field that updates in real time. • Supplier quote storage and attachments – each cost line needs an upload field (PDF, image, email printout) so the original quote is always one click away. • Payment tracking – a simple checkbox or single-select that I can toggle when a quote has been paid; when selected, it should stamp the payment date automatically. Financial insight I rely on profit-margin reports, so the system sho...

I have a Computer Science systems-design assignment due in three days that focuses specifically on database design. I need a clear, well-structured submission that demonstrates solid theoretical understanding and practical application. Scope – Analyse the problem statement I will share and extract data requirements. – Produce an ER diagram, explain entity choices, relationships, cardinalities, and constraints. – Normalise the model up to 3NF, documenting each step and the rationale. – Provide the final relational schema with primary and foreign keys clearly indicated. – Supply brief written explanations (2–3 pages) that justify design decisions and reference best practices. Acceptance Criteria • Diagram delivered in a common format (PDF or...

I’m rolling out the first release of a job-searching platform that already sits on top of a community of 87 million professionals. The entire focus of this build is to let candidates search and discover employer-posted opportunities quickly and intuitively. Core scope • Job listings are the single feature we need live for launch. Employers must be able to create, edit, publish, and archive their openings through a straightforward dashboard, while seekers browse, filter, and save roles. • Only direct employers will post ads in this phase. The workflow has to reflect that—no agency fields, fees, or approval steps. • Clean, responsive UI that feels inviting to a global audience and scales to the size of our network. • Solid search & filter logic (k...

I need an Elasticsearch cluster set up to store and manage log data. On premises Requirements: - Install and configure a new Elasticsearch cluster from scratch. - Ensure the setup is optimized for log data ingestion and querying. - Provide basic documentation for accessing and managing the cluster. Ideal Skills and Experience: - Proven experience with Elasticsearch installation and configuration. - Strong understanding of log data and its requirements. - Good documentation skills. Install on premises on windows servers

2-Week Paid PoC — Backend AI System for Indian Equities (Audit-Grade Research) Description: I am hiring a backend engineer for a 2-week paid Proof of Concept (PoC) to build a small working version of an automated investment research system for Indian equities (NSE/BSE). This is not a trading bot, not a dashboard, and not a scraping project. It is a backend-only system that: Automatically ingests official NSE/BSE filings Downloads and stores PDFs Computes SHA256 hashes Validates and parses documents Enforces BUY/HOLD rules in Python (not prompts) Generates research briefs with evidence Runs with zero manual data handling PoC Scope (2 Weeks) The PoC will cover 3–5 Indian defence stocks only. You must deliver: Automated PDF ingestion (no manual uploads, no scraping)...

A) Web app (template designer UI) Use an embedded DOCX editor: ONLYOFFICE Docs (most common for embedding) Flow: Your UI has a page /templates/:id/edit You embed ONLYOFFICE editor in that page (iframe + their JS config) Add a custom button: Insert Placeholder Clicking it inserts something like {{}} at the cursor B) Backend services You typically have 3 backend parts: File service Store original DOCX + edited template DOCX (S3 / Azure Blob / disk) Template metadata Store “field definitions” in DB: field_key: label: “Customer Name” type: string/date/number optional formatting rules Document generation service Input: template DOCX + JSON data Output: generated DOCX (and optional PDF) For merging placeholders, a popular approach in Node is docxtemp...

Project Title Custom Case Management & Workflow System for Accredited DNA Laboratory Project Overview We are an ISO 17025 accredited DNA testing laboratory in Australia seeking to develop a custom-built web-based case management and workflow system. This system will replace an 18-year-old legacy database and must reflect our current operational complexity, including: Legal DNA testing Government agency cases Immigration DNA testing (including international coordination) Distributed inventory management Document control and compliance Communication tracking and follow-up workflows This is a ground-up custom system. We are not seeking CRM customisation or template-based solutions. A detailed functional specification is being finalised and will be provided to shortlisted devel...

Estoy creando una aplicación web y necesito a alguien que domine Firebase Studio para acelerar el desarrollo. El objetivo principal es montar toda la capa de backend en Firebase: • Configurar desde cero la base de datos y definir una estructura clara y escalable. • Integrar Firebase con servicios externos que ya uso en el proyecto. • Implementar la autenticación de usuarios (correo, Google, etc.). • Habilitar notificaciones en tiempo real para eventos clave dentro de la aplicación. • Gestionar el almacenamiento de archivos de forma segura y eficiente. Trabajo con un stack moderno (React + TypeScript) y agradeceré buenas prácticas, documentación breve de lo realizado y sugerencias para futuras optimizaciones. Si t...

The goal is to create a web-based Applicant Tracking System that lets employers publish vacancies and follow every candidate from application to final decision. I only need two roles at this stage—Admin (full system control) and Employer (job and applicant management)—so please keep the interface and permissions model focused on those. Core functions I expect • Job Posting: easy form to publish, edit, archive, and reactivate openings, with searchable listings for the employer dashboard. • Candidate Tracking: status pipeline, notes, and simple reporting so an employer can see where every applicant stands at a glance. • Admin Console: manage employers, adjust fields/workflows, and pull high-level metrics. A clean, responsive UI, solid authentication, and go...

I have several disparate sources holding our inventory information and I want it all pulled together into one clean, well-structured Microsoft SQL Server database file. The job is straightforward in principle: extract every piece of inventory data you can reach, reconcile duplicate SKUs or mismatched item descriptions, then load the final result into a single .sql or .bak file that I can restore through SQL Server Management Studio. Please preserve every existing field that carries operational value—quantities on hand, reorder thresholds, location codes, cost figures, and any audit timestamps—and normalise the schema where it clearly improves reporting speed or data integrity. If a field appears under different names in different systems, map it consistently; if you uncover ga...

Project Title Senior Full-Stack Developer: Custom Labor & Vacancy Portal (Laravel 11, React, , Supabase) Project Overview We are seeking a highly skilled Senior Full-Stack Developer (or a small agency) to build a custom, high-security employment portal. This is not a basic job board; it is a comprehensive management system involving complex approval workflows, citizen data handling, and an intelligent profile-matching engine. The ideal candidate has deep experience in the TALL or VILT stack and a strong focus on security and performance. Technical Stack (Non-Negotiable) Backend: Laravel 11 (High-security engine for data, logic, and workflows). Frontend: React + TypeScript. Bridge: (To maintain a seamless SPA experience). Database: Supabase (PostgreSQL) with automated citizen dat...

I want to demonstrate provable data consistency across a geographically distributed Hyperledger Fabric network by persisting the blockchain ledger in CockroachDB instead of the default back-end. The work centres on two Fabric layers: chaincode and the ledger itself. Chaincode reads and writes must be routed so that every block committed by a peer is durably stored in CockroachDB, and peers must replay that data with no divergence even under node failure or network partitions. The scope includes mapping Fabric’s block and state data structures to a CockroachDB schema, wiring the peer so that commit and endorsement steps call the database seamlessly, and validating the design with a small multi-region testnet. CockroachDB will act strictly as the ledger store; MSP and other services r...

I’m looking for a seasoned full-stack professional who can guide me through deep-dive, project-driven sessions that sharpen every layer of web development. My foundation is already advanced, but I want to refine technique and architecture across the whole stack—from pixel-perfect React front ends to robust Django APIs and well-designed relational databases. Here’s what I need from you: • short, structured video calls (ideally 2–3 times a week) where we dissect real-world problems and pair-program solutions • code reviews that push me toward cleaner patterns, stronger testing habits, and production-ready deployment workflows • mini-projects or exercises that tie together JavaScript/React, Python/Django, HTML, CSS, and any supporting language or ...

I'm looking for a skilled developer to build a comprehensive customer database platform. The platform is intended to serve multiple purposes including: - Storing contact information - Managing customer interactions - Tracking sales and orders Key features of the database should include: - Ability to add new contacts via manual entry or importing from files - Storing a variety of information such as: - Personal details (name, address, phone) - Customer preferences and history - Contract information - Sales information Ideal skills and experience: - Experience in database design and development - Familiarity with data import functionalities - Strong understanding of data privacy and security - Ability to create user-friendly interfaces for manual data entry Please provide e...

I need a developer to design a SQL database and a small ERP-style system for my logistics company. This system will create goods dispatch notes based on specific parameters. Core Functionalities: - Calculate quantities to be delivered per item per day. - Calculate total of each item to be delivered per month per customer. - File upload capability. - Output goods dispatch notes in Excel format. - Accessible as a web app for different users - Dashboard to track progress of deliveries per month - Interface to modify the data and based on delivery needs - Capable of calculating and creating all the dispatch notes per week and per month Ideal Skills and Experience: - Proficiency in SQL and ERP system development. - Strong experience in database design. - Familiarity with Excel output generat...

Zoho ERP Integration Specialist Project Overview A leading service contractor company in Kenya, seeks an experienced Zoho ERP Integration Specialist to implement a comprehensive Zoho One ecosystem. The project involves configuring and integrating 11 Zoho modules with external systems including KRA eTIMS and M-Pesa APIs, tailored for Kenya's regulatory environment. Project Details Duration: 2-4 weeks (0-1 months) Work Model: Remote with occasional on-site visits to Nairobi Modules: 11 Zoho modules + 3 custom Zoho Creator applications Key Integrations: KRA eTIMS Type C, M-Pesa B2C API, Inter-module automation Budget: Competitive - Based on experience and proposal Note: Detailed Scope of Work document will be shared with shortlisted candidates. Required Skills & Competencies 1. Core ...

I’m looking for a senior systems architect to design the technical foundation for a payment-gated booking network that controls access to real-time, high-demand service slots. From the user’s perspective, the flow is simple: select a slot → pay → receive instant confirmation. Behind the scenes, the platform must reliably handle concurrency spikes, subscription validation, atomic booking, and fast payment settlement, while guaranteeing zero double-booking. This is an architecture-first engagement. No UI or app build is required at this stage. Core Objectives Model the end-to-end flow for payment-gated real-time bookings for high-demand services. Design a subscription layer that wraps booking access. At launch we will offer a single monthly plan; the architecture m...

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