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I’m building a web-based application that will have roughly 30–50 concurrent users and I need the entire backend put in place. My stack choice is clear: Django for the framework and PostgreSQL for the relational database. Core functionality I’m expecting: secure user authentication, robust data storage that scales smoothly as usage grows, and clean API integrations so the front-end team can consume endpoints without friction. I already have the high-level data model sketched out, so we can dive straight into designing the schema, wiring up Django models, and exposing RESTful endpoints (DRF is fine, but I’m open to GraphQL if you can show a strong case). Deliverables • Fully-configured Django project running on PostgreSQL • User auth flow (registration, login, password reset) with best-practice security settings • CRUD endpoints for the primary data objects, documented via Swagger or similar • Integration layer ready for at least one external API, plus stubs for future additions • Deployment-ready settings (env-based config, migrations, basic unit tests) Acceptance criteria: automated tests pass, Swagger docs render without errors, and the project spins up in Docker (or a simple README-guided local setup). Once this baseline is solid we’ll look at caching, background tasks, and performance tuning, but phase one is all about getting a clean, maintainable backend in place.
Project ID: 40741778
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356 freelancers are bidding on average $457 USD for this job

⭐⭐⭐⭐⭐ Build a Robust Backend for Your Web Application Using Django & PostgreSQL ❇️ Hi My Friend, I hope you are doing well. I’ve reviewed your project requirements and see you are looking for a backend developer for your web application. You have no need to look any further as Zohaib is here to help you! My team has successfully completed 50+ similar projects for backend development. I will create a secure user authentication system, robust data storage, and clean API integrations to ensure smooth operation. ➡️ Why Me? I can easily build your backend using Django and PostgreSQL as I have 5 years of experience in web development, focusing on backend systems, user authentication, and API integration. Not only this, but I also have a strong grip on deployment processes, automated testing, and database management, ensuring your project is efficient and reliable. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ Django Framework ✅ PostgreSQL Database ✅ User Authentication ✅ RESTful APIs ✅ CRUD Operations ✅ Data Modeling ✅ Docker Deployment ✅ Automated Testing ✅ API Documentation ✅ Security Best Practices ✅ Performance Tuning ✅ Background Tasks Waiting for your response! Best Regards, Zohaib
$350 USD in 2 days
7.9
7.9

At 30–50 concurrent users the constraint isn't raw scale — it's getting the schema and auth right the first time, because those are the parts that are painful to change once the front-end team is building against them. I'd go with Django REST Framework over GraphQL here: your deliverables are CRUD-shaped, and DRF gives you Swagger docs, token/session auth and permissions out of the box with far less surface area to secure. For auth I'd use JWT or Django's session auth with proper password hashing, rate-limited login and password reset over authenticated email, and I'd enforce object-level permissions at the queryset level rather than the view, so a user can never fetch another's records by changing an ID. Schema-wise I'd add the indexes and constraints your access patterns actually need up front, since those are cheap now and expensive under load later. The external integration goes behind a service layer with timeouts and a clean interface, so adding the next API is one adapter. You'd get env-based settings, migrations, unit tests, Swagger, and a Docker setup that spins up with one command. Ready to start as soon as you share the data model.
$250 USD in 1 day
7.3
7.3

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in API Development, RESTful API, NoSQL Couch & Mongo, Backend Development, PostgreSQL, Python, Django, Docker As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen
$500 USD in 10 days
7.2
7.2

Hello, I HAVE BUILT SIMILAR DJANGO + POSTGRESQL BACKENDS AND CAN SET UP THE COMPLETE FOUNDATION FOR YOUR APPLICATION. I have 11+ years of experience in backend development with Django, PostgreSQL, REST APIs and secure authentication. I can take your existing high-level data model, design the database schema, create clean Django models and expose well-structured RESTful endpoints using Django REST Framework. I will implement secure registration, login and password reset, CRUD APIs, Swagger/OpenAPI documentation, external API integration with a modular structure for future integrations, environment-based configuration, migrations and automated unit tests. The project will be Docker-ready with a clean README for local setup and deployment. I will also structure the code so caching, background jobs and performance improvements can be added easily in the next phase. Thanks, Christina
$250 USD in 7 days
6.9
6.9

Hi, I can build your Django and PostgreSQL backend with a clean, maintainable architecture designed for your expected 30–50 concurrent users. I can handle database schema design, Django models, secure authentication, REST APIs with DRF, Swagger documentation, and external API integration. I’ll also include environment-based configuration, migrations, Docker setup, and automated tests. The focus will be on reliable functionality now and an architecture that can support caching, background tasks, and future scaling without unnecessary complexity. Happy to review your data model and get started. Best regards
$500 USD in 7 days
7.0
7.0

Django and PostgreSQL are a strong fit for a backend serving 30-50 concurrent users. The main risk is keeping authentication, schema decisions, external API boundaries, and deployment conventions consistent so front end can build on a stable contract. I would configure Django with PostgreSQL, secure registration, login and password reset, then model the primary objects with clear constraints and migrations. Django REST Framework is the practical default: serializers, permissions, validation, pagination, and Swagger or OpenAPI documentation. I would add the first external API behind an adapter with timeouts, rate-limit handling, structured errors, and stubs for future integrations. Docker, a README setup, health checks, and unit tests would make the acceptance criteria verifiable. My L'invite work is a close reference: a Django and PostgreSQL platform with 100+ connected tables, API-level access control, Celery and Redis, and an AI agent serving live business analysis across 1M+ API calls per month. That experience helps keep this baseline simple while leaving a safe path for caching and background tasks later. I would review your data model and confirm the first external API before locking the endpoint contract. Do you prefer Django REST Framework for phase one, and which service should the integration layer connect to first? Bid amount, milestones, weekly allocation, and delivery period will be discussed and finalized after scope clarification, preferably on a short call.
$500 USD in 7 days
6.7
6.7

Hi, I'm Denis, a full-stack developer with experience building Django backends with PostgreSQL for applications with similar user loads and data complexity. I understand you need a solid, maintainable foundation that scales as your user base grows. The core work involves setting up Django models mapped to your data structure, implementing secure authentication with proper password handling and session management, and building well-documented REST endpoints for your frontend team. You'll also need environment-based configuration, database migrations, and Docker setup for seamless onboarding. My approach: I'll review your data model and translate it into Django models with proper indexing and relationships. Next, I'll set up authentication using Django's built-in tools with industry-standard practices like password hashing and token management. Then I'll build DRF endpoints for core CRUD operations with Swagger documentation and prepare an integration layer for external APIs. Finally, I'll containerize everything, write unit tests for critical paths, and document the setup. One thing to discuss upfront: REST versus GraphQL. DRF is simpler and faster to implement, fitting your timeline. GraphQL adds frontend flexibility but requires more careful design around queries and permissions. I'd recommend REST for phase one unless your team prefers otherwise. The main risk is unclear data relationships. Discovering midway that the schema needs restructuring complicates migrations.
$250 USD in 3 days
6.4
6.4

Hi, CnEL India can build the Django + PostgreSQL backend with a clean, secure and maintainable architecture for your application. Our methodology: * Review your existing data model and translate it into optimized PostgreSQL schemas and Django models. * Configure secure authentication, registration, login and password reset with proper validation and session/security controls. * Develop structured CRUD APIs using Django REST Framework. * Add Swagger/OpenAPI documentation for clear frontend integration. * Build a modular integration layer for the first external API, with a structure that supports future integrations. * Configure environment-based settings, migrations and secure secret management. * Add unit/API tests covering authentication, CRUD operations, validation and edge cases. * Dockerize the project for consistent local/deployment environments. * Optimize database queries and API structure for the expected concurrent usage. * Provide README with setup, migration, testing and deployment instructions. We can start with the schema and core backend structure, then implement APIs, integrations, testing and deployment readiness in milestones.
$500 USD in 15 days
6.4
6.4

As a veteran Backend Developer and Python expert, I am more than capable of executing your Django and PostgreSQL project smoothly. I've delved into projects of similar complexity countless times, so the technicalities won't be a challenge at all. Over the years, my skills have become finely-tuned to create secure user authentication systems, scalable database solutions, and clean API integrations that your front-end team will be delighted to consume. My flair for crafting maintainable backends aligns perfectly with your project goals. In addition to fulfilling your core functionality requirements -- high-level data model design, schema building, wiring Django models, and RESTful endpoints -- I bring another key strength to the table: my adeptness with automation and workflow optimization using AI and third-party integrations. This means that as we move forward with your Django project, I'll think two steps ahead, considering how we can leverage artificial intelligence and other advanced technologies for even more improved backend system performance.
$700 USD in 7 days
6.3
6.3

I can build the entire Django and PostgreSQL backend for your web application to support your 30 to 50 concurrent users. I will set up a fully-configured Django project with secure user authentication covering registration, login, and password resets using best-practice security settings. I will structure your data models and build clean RESTful CRUD endpoints using Django Rest Framework, ensuring the front-end team can consume them without friction. Additionally, I will implement the integration layer for your external API with stubs for future additions, set up environment-based configurations, write basic unit tests, and generate error-free Swagger documentation. The project will be delivered with a clean README-guided local setup and deployment-ready settings, ensuring automated tests pass smoothly. Once this baseline is solid, we can easily expand into caching and background tasks. Let's chat soon to discuss the details and get started.
$500 USD in 7 days
6.1
6.1

Hello, Greetings , Good evening! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Backend Development, PostgreSQL, RESTful API, Django, Docker, API Development, NoSQL Couch & Mongo and Python. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Talk to you soon
$555 USD in 6 days
6.1
6.1

Hi, I understand you need a complete Django backend connected to PostgreSQL for 30-50 concurrent users. I will turn your existing data model into clean Django models and a reliable database schema, then build secure registration, login, and password reset flows. I’ll expose clear REST API endpoints for the main data objects, add Swagger documentation, and prepare an integration layer for the first external API with room for future services. The project will include environment-based settings, migrations, basic unit tests, and Docker setup or simple local instructions. I’ll also keep the code easy for your front-end team to use and maintain. Before delivery, I’ll check that the tests pass, Swagger loads correctly, and the application starts without setup issues. Do you already have the high-level data model and preferred external API details ready for review? I can focus phase one on a stable, clean foundation so caching, background tasks, and performance improvements can be added smoothly later.
$750 USD in 12 days
6.2
6.2

Hi, Your requirement is a strong match for my Python/Django backend experience. I can build the Phase-1 backend as a clean, maintainable and deployment-ready system using Django + PostgreSQL + DRF. I can handle: Secure authentication & password reset Django models, migrations & PostgreSQL schema RESTful CRUD APIs with DRF Swagger/OpenAPI documentation External API integration layer Docker + environment-based configuration Unit/API testing and deployment-ready setup I’ll focus on a clean architecture, security, validation and maintainability, so the backend can comfortably support your 30–50 concurrent users and remain easy to extend for the next phase. I can start directly from your existing data model and deliver the baseline backend with clear documentation. Python | Django | DRF | PostgreSQL | REST API | Docker | API Integration | Testing Regards, Ashish Negi
$600 USD in 13 days
6.0
6.0

Hi, I can build a clean, scalable Django backend with PostgreSQL for your 30–50 concurrent-user application, keeping Phase 1 focused on a solid and maintainable foundation. Key Deliverables: ================ Django + PostgreSQL project setup Secure registration, login and password reset Django REST Framework CRUD APIs Swagger/OpenAPI API documentation External API integration layer with reusable stubs Environment-based configuration and migrations Docker setup and clear README Basic automated/unit tests Secure authentication, validation and error handling Stack: Python | Django | DRF | PostgreSQL | Docker | Swagger/OpenAPI | REST APIs I will structure the backend cleanly so caching, background jobs and performance improvements can be added easily in the next phase. Timeline: Approximately 2–3 weeks. Question: Could you share the existing high-level data model so I can review the entities and confirm the initial API/schema structure? Best regards, Manu The price will be given after the final discussion!
$500 USD in 7 days
6.2
6.2

Hello sir, I have strong experience in Python, Django, PostgreSQL and API development. I can build a secure and scalable backend with user login and authentication. I can create clean REST APIs or GraphQL APIs for smooth frontend integration and fast data handling. The system will be built to support current and future users. I also provide support for caching, background tasks, performance and testing. My goal is to deliver a reliable and maintainable backend on time. Looking forward to work with you. Thanks and Regards !! Deepak
$750 USD in 20 days
6.9
6.9

I understand you need a clean and maintainable Django backend with PostgreSQL for your web application, including secure authentication, core CRUD APIs and an integration layer for external services. The main focus is building a solid Phase 1 foundation that the frontend team can consume easily. I can set up the Django project with PostgreSQL, registration/login/password reset, secure authentication, Django models, DRF REST endpoints, Swagger documentation and the required external API integration. I’ll also configure environment-based settings, migrations, Docker/local setup and basic automated tests. Why choose me? 1. 7+ years of web development experience 2. Strong Python, Django, PostgreSQL and REST API skills 3. Experience building secure backend systems and integrations 4. Clean, scalable and maintainable architecture 5. Proper testing, documentation and deployment-ready setup Share your existing data model, and I’ll review it and suggest the best backend structure within 24 hours - Free. Happy to jump on a quick chat. Budget and timeline are flexible. Best wishes, Nikita Gupta
$300 USD in 14 days
6.0
6.0

Hi, I can build the Django/PostgreSQL backend as a clean foundation for your web application, starting from the existing high-level data model and implementing the schema, Django models, secure authentication, CRUD APIs, and external API integration layer. I’d use Django REST Framework for the API unless the data relationships and frontend requirements provide a clear reason to use GraphQL, with OpenAPI/Swagger documentation, environment-based configuration, migrations, Docker setup, unit tests, and production-ready security settings. The structure will also keep integrations and business logic modular so caching, background jobs, and further performance work can be added later without reworking the core backend. Question 1: Can you provide the current high-level data model and identify the primary entities that the frontend needs to manage through the API? Question 2: Which external API should be integrated in phase one, and do you already have its authentication method and API documentation available? Regards, Houssame.
$250 USD in 3 days
6.5
6.5

Hi there, Building a backend for 30-50 concurrent users that needs to scale smoothly often suffers from poorly structured relational schemas and unoptimized queries that cause latency as data grows. My solution is to build a high-performance Django and PostgreSQL backend utilizing Django REST Framework with robust database indexing and clean architecture, ensuring your frontend team gets fast, thoroughly documented endpoints without friction. Here are my questions: 1. Are you leaning towards DRF or GraphQL for the API layer based on your frontend team's requirements? 2. Do you already have a preferred cloud provider or hosting environment in mind for the Docker deployment? Drop me a message so we can get started right away.
$750 USD in 25 days
5.7
5.7

Hi, I can build your complete Django backend on PostgreSQL to support 30–50 concurrent users, and more, with secure authentication, scalable data storage, and clean RESTful API endpoints using Django REST Framework. I will translate your high-level data model into a robust schema, implement best-practice security for user registration and login, and document all CRUD endpoints via Swagger for seamless frontend consumption. The project will be delivered as a deployment-ready Dockerized application with environment-based configuration, comprehensive unit tests, and integration stubs for future external APIs, ensuring a solid foundation for Phase One. You will receive the fully configured source code, migration scripts, and clear setup documentation that meets all acceptance criteria. My extensive experience architecting Django backends ensures high performance, maintainability, and frictionless collaboration with your frontend team from day one. I also offer FREE post-delivery support to monitor initial API stability, troubleshoot any authentication or database connection issues, and assist with minor endpoint adjustments during the first month. Let's discuss the project in more details.
$600 USD in 14 days
5.9
5.9

Hey, For a 30–50 user backend, I’d keep the first phase focused on a clean Django/PostgreSQL foundation rather than prematurely adding caching or background infrastructure. I can structure the models around your existing data design, build secure authentication and REST APIs with DRF, document the endpoints, and keep the integration layer extendable for additional APIs later. I’d also set up environment-based configuration, migrations, automated tests, and Docker/local setup so the frontend team gets a predictable API and the project remains easy to maintain. I can show similar Django/API backend examples in chat. If you share the current data model, I can also review it and point out anything worth addressing before implementation. Portfolio: https://www.freelancer.com/u/Hammadhassan21 Best regards, Hammad Hassan
$300 USD in 10 days
5.7
5.7

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