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We are looking for an experienced Backend Developer with strong expertise in Django, PostgreSQL, MySQL, and Generative AI integration for immediate hiring. The developer will work on an existing production codebase, create missing APIs, enhance and maintain current APIs, and ensure a clean and scalable backend architecture. You will collaborate closely with our Flutter frontend developer to ensure smooth API integration, performance optimization, and reliable data handling. The ideal candidate must have solid experience building RESTful APIs, managing authentication and authorization, optimizing database queries, and integrating generative AI solutions such as Google AI Studio (Gemini) and OpenAI into backend systems. Strong communication skills, clean coding practices, and the ability to quickly understand and extend an existing codebase are essential. To apply, please share a short Loom video walking us through APIs you have previously built, explaining the endpoints, architecture decisions, and how you structured and secured them. Immediate availability and proven experience with similar backend and AI-integrated projects are required. Note: Individual developer only,no agency.
Projekt-ID: 40267314
39 Vorschläge
Remote Projekt
Aktiv vor 11 Tagen
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39 Freelancer bieten im Durchschnitt $156 USD für diesen Auftrag

⭐⭐⭐⭐⭐ Experienced Backend Developer for Django, PostgreSQL & AI Integration ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project needs and see you're looking for an experienced Backend Developer. You don't need to look any further; Zohaib is here to help you! My team has completed over 50 similar projects in backend development. I will focus on enhancing your existing codebase, creating missing APIs, and ensuring a clean, scalable architecture. ➡️ Why Me? I can easily handle your backend development needs as I have 5 years of experience in Django, PostgreSQL, and MySQL. My skills include building RESTful APIs, managing authentication, and optimizing database queries. Additionally, I have a strong grip on integrating generative AI solutions like Google AI Studio and OpenAI to enhance functionality. ➡️ Let's have a quick chat to discuss your project in detail and I can show you samples of my previous work. I look forward to discussing this with you! ➡️ Skills & Experience: ✅ Django Development ✅ PostgreSQL ✅ MySQL ✅ RESTful API Design ✅ Generative AI Integration ✅ API Authentication ✅ Database Optimization ✅ Clean Coding Practices ✅ Codebase Management ✅ Flutter Collaboration ✅ Performance Optimization ✅ Data Handling Waiting for your response! Best Regards, Zohaib
$150 USD in 2 Tagen
7,9
7,9

Hi, I’ve built multiple web apps with Django and integrated OpenAI and Google AI, including a product that uses AI to generate personalized email templates. I’m also a front-end developer, so I can handle both back-end and front-end tasks, ensuring seamless integration. I’ve worked extensively with PostgreSQL and MySQL, optimizing queries and managing database migrations. I’m well-versed in creating RESTful APIs and implementing secure authentication methods like JWT and OAuth. I’m available to start immediately and can dedicate 10–12 hours per day to your project. Let’s schedule a 10-minute call to discuss your project in more detail and see if I’m the right fit. Best regards, Adil
$123,75 USD in 7 Tagen
6,0
6,0

Django/PostgreSQL is my primary backend stack and creating/enhancing APIs on existing production codebases is my day-to-day. The Generative AI integration piece is interesting too - I've integrated OpenAI and Anthropic APIs into Django apps a bunch of times. Happy to start with a paid test task to show how I work before we commit to anything longer. Share some API specs or the current pain points and we can move fast. - Usama
$250 USD in 14 Tagen
6,1
6,1

Hello Sir, I’m an individual backend developer with 12+ years of experience building scalable APIs and production-grade systems. I have strong hands-on expertise in Django, PostgreSQL, and MySQL, and I specialize in designing clean, secure, and well-documented RESTful architectures that are easy to extend and maintain. I’ve worked extensively on live production codebases—adding missing APIs, refactoring legacy endpoints, optimizing complex queries, and implementing robust authentication/authorization (JWT, OAuth, role-based access control). Performance tuning and database indexing are part of my regular workflow. I also have solid experience integrating Generative AI solutions including OpenAI and Google Gemini APIs into backend systems—handling prompt engineering, response validation, usage optimization, and secure API key management. I collaborate smoothly with frontend teams (including Flutter developers), ensuring consistent API contracts, proper error handling, and predictable response structures. Clean coding standards, modular design, and scalability are always priorities. I’m available to start immediately and can provide a Loom video walkthrough of APIs I’ve built, explaining architecture, security decisions, and scalability considerations. Looking forward to contributing to your backend and AI integration goals. Best Regards Jitendra Sharma
$250 USD in 8 Tagen
5,3
5,3

Hi there, I’m an individual backend developer with strong hands-on experience in Django, PostgreSQL/MySQL, and building clean, scalable REST APIs within live production codebases. I’ve worked on extending existing systems—adding missing endpoints, tightening authentication/authorization flows, optimizing complex queries, and ensuring smooth integration with frontend apps (including Flutter) through well-structured, documented APIs. I’ve also integrated Generative AI services like OpenAI and Gemini into backend workflows for content generation and intelligent automation, with proper rate handling and security controls. I can share a Loom walkthrough of APIs I’ve built, explaining architecture decisions, endpoint structure, and security setup—and I’m available to start immediately. Looking forward for your positive response in the chatbox. Best Regards, Arbaz M
$140 USD in 2 Tagen
5,4
5,4

Hi. Client. Thanks for your posting. I'm a senior developer with over 5+ years of experience in JavaScript, Python, Django and Flask. After reading your project "", I believe that my skills and experience are a good match for what you are looking for. I would love to discuss the project further and learn more about your specific needs and goals. I'm committed to providing 100% satisfaction and delivering the work on time. Thank you for considering my application. I look forward to hearing back from you soon. Best regards.
$100 USD in 2 Tagen
5,3
5,3

Dear , I am a seasoned Backend Developer specializing in Django, PostgreSQL, MySQL, and Generative AI integration. With a proven track record of enhancing and maintaining APIs, optimizing database queries, and integrating AI solutions, I am confident in my ability to meet your project requirements effectively. My experience in building RESTful APIs, managing authentication, and collaborating closely with frontend developers aligns well with your needs. I am committed to ensuring a clean and scalable backend architecture while prioritizing clear communication and reliable delivery. I am eager to discuss how I can contribute to your project further. Thank you for considering my proposal. Best regards,
$30 USD in 7 Tagen
5,1
5,1

Hi Hi, I can immediately join and work on your existing Django production codebase to build missing APIs, enhance current endpoints, optimize PostgreSQL/MySQL queries, and ensure a clean, scalable backend architecture. I have experience integrating OpenAI/Gemini APIs into backend systems, handling authentication/authorization, and collaborating closely with Flutter frontends for smooth API consumption. Thanks Anshuman
$140 USD in 7 Tagen
4,3
4,3

As an experienced backend developer with deep expertise in Django, MySQL, PostgreSQL, Generative AI integrations, and more, I can confidently say I'm the right fit for your immediate project. With over 8 years in the field, I've devoted most of my career to building robust RESTful APIs just like what you're seeking. I have a track record of collaborating on intricate projects and adhering to clean coding practices to ensure maintainable and scalable architecture - all key aspects needed here. My proficiencies extend beyond backend development and include managing authentication, authorization and optimizing database queries to improve overall system performance. Additionally, I've worked on similar projects that involved AI integration such as Google AI Studio (Gemini) and OpenAI for generative models.I know you mentioned a short Loom video showcasing APIs built before; let me prove it's more than worth your while. I am readily available for this project and guarantee efficient collaboration with your Flutter frontend developer. Time to elevate your backend to unprecedented heights!
$140 USD in 7 Tagen
3,7
3,7

HELLO, HOPE YOU ARE DOING WELL! I see you need a backend developer adept in Django, PostgreSQL, MySQL, and generative AI integrations to enhance and maintain your existing production codebase, while closely collaborating with your Flutter frontend developer for seamless API management. As an individual developer, my background aligns perfectly with your requirements for building and optimizing robust RESTful APIs, handling secure authentication flows, and integrating cutting-edge AI solutions like Google Gemini and OpenAI. My plan is to first review your production codebase, identify and develop the needed APIs, refine existing endpoints for security and scalability, and integrate generative AI features smoothly into your backend. I’ll ensure regular communication with your frontend developer for a tightly integrated and high-performing product. I'd like to have a chat with you at least so I can demonstrate my abilities and prove that I'm the best fit for this project. Warm regards, Natan.
$140 USD in 1 Tag
3,4
3,4

I've worked extensively on production Django codebases where I've built and maintained RESTful APIs with Django REST Framework, handled token-based authentication and role-based authorization, and optimized complex PostgreSQL and MySQL queries for performance at scale. For your project, I'd start by auditing the existing codebase to understand the architecture, then systematically build out the missing API endpoints while refactoring any existing ones that need improvement—ensuring clean serialization, proper error handling, and thorough documentation so your Flutter developer has a seamless integration experience. I've integrated both OpenAI and Google Gemini APIs into Django backends for features like content generation and intelligent search, so your generative AI requirements are well within my wheelhouse. I'm available to start immediately.
$30 USD in 1 Tag
4,1
4,1

Hi there, I’m Robert, a Senior Full-Stack & AI Engineer with over 10 years of experience architecting and delivering SaaS platforms, automation systems, and intelligent applications. My top strengths include RESTful API development, seamless AI integration, and scalable database management with Django. I have developed and maintained robust APIs for various applications, such as a multi-tenant SaaS chatbot platform integrating OpenAI and PostgreSQL, ensuring top-notch performance and security. My deep technical background in full-stack and AI engineering aligns perfectly with your requirement to enhance and maintain existing APIs while integrating generative AI solutions. I can complete this project perfectly and deliver scalable, production-ready results. I commit to clean architecture, structured documentation, CI/CD automation, and OWASP-based security practices to ensure your backend is reliable and secure. Let’s connect to refine your requirements and begin building a solution that exceeds expectations. What specific performance optimizations are you looking to achieve in the existing APIs?
$250 USD in 30 Tagen
3,2
3,2

I have extensive experience as a Senior Django Backend Developer, proficient in building and maintaining scalable RESTful APIs with PostgreSQL and MySQL. I’ve successfully integrated generative AI solutions like OpenAI and Google AI Studio into production backends, ensuring secure and optimized data handling. My approach involves thoroughly understanding the existing codebase, creating missing APIs with clear structure and security, and collaborating closely with frontend teams for seamless integration. I prioritize clean, maintainable code and efficient query optimization. I am available immediately and can provide a Loom video walkthrough of previous API projects highlighting architecture and security decisions. I am confident I can deliver robust backend enhancements quickly and reliably within your timeline.
$140 USD in 7 Tagen
2,9
2,9

THIS IS NOT THE AUTO BID, PLEASE REVIEW IT IN DETAIL Hi there, I’ve thoroughly reviewed your project details, and I can confidently say this is completely doable. This is exactly the kind of web development work I excel at and handle regularly with precision and care. I’m a skilled web developer with strong experience in Django, MySQL, OpenAI, RESTful API, PostgreSQL, Python, AI Development, Generative AI and API Development. I specialize in clean, maintainable code, responsive and elegant design, fast-loading performance, secure architecture, and highly user-friendly interfaces — everything needed to ensure your website or web application not only works flawlessly but also stands out. You can also check out similar projects in my portfolio on my profile to see the quality and style I deliver. I’m confident I can provide high-quality results that exceed your expectations while respecting your timeline. Let’s turn your project into something amazing, sleek, and irresistible.
$30 USD in 3 Tagen
3,0
3,0

Hello, I would love to help. I understand the main goals and will ensure the final result that matches your expectations. I am an experienced and specialized freelancer with 5+ years of practical experience in Python, MySQL, Django, PostgreSQL, RESTful API. I have a few questions before we get started. Could you please send me a message in the chat? Looking forward to working with you, connect in chat. Talk soon, Dax Manning
$210 USD in 7 Tagen
2,0
2,0

Hi, that’s great to hear! Your project closely aligns with one I recently completed. In that project, I built scalable Django backend services with custom RESTful APIs using Django REST Framework, PostgreSQL, and MySQL, with seamless integration of OpenAI and Gemini models for AI-driven features, incorporating secure authentication, clean architecture, and optimized query handling. This experience directly matches your need for enhancing a production codebase, structuring efficient API layers, and collaborating with a Flutter frontend to ensure smooth integration. I’d be glad to connect and share my experience in more detail over chat. Thank you. Best regards, Lazar
$100 USD in 1 Tag
2,2
2,2

Hope you are doing well! I understand you need an individual backend developer who can immediately work within an existing Django production codebase, extend APIs, optimize PostgreSQL/MySQL queries, and integrate Generative AI (OpenAI/Gemini) securely and scalably. Key risks include breaking existing API contracts, inefficient ORM queries causing performance drops, improper auth handling, and unstable AI integrations due to rate limits or prompt mismanagement. I have built and maintained Django REST APIs with JWT/session auth, role-based access control, and optimized querysets using select_related/prefetch_related and indexing strategies. In previous AI-integrated systems, I implemented async task queues (Celery) to handle OpenAI calls, added retry/fallback logic, and secured endpoints with strict validation and usage limits. I’ve also refactored legacy APIs by modularizing services and separating business logic from views to improve scalability and testability. I can collaborate smoothly with your Flutter developer, document endpoints clearly, and provide a Loom walkthrough explaining architecture, security, and design decisions. I am immediately available and experienced in similar AI-backed backend systems. I am ready for you and waiting here. Thank you.
$140 USD in 7 Tagen
1,4
1,4

Hello, thanks for posting this project. I have extensive experience in Django, PostgreSQL, MySQL, and integrating generative AI into backend systems. I can enhance, maintain, and optimize your APIs for smooth integration with the frontend. When can we discuss further details about your project requirements? Look forward to hearing from you. Warm regards, Vitalii. Question: Could you provide more insights into the project timeline and key deliverables?
$140 USD in 1 Tag
1,1
1,1

❤️ Hello. You need more than API fixes — you want a clean, scalable production-ready Django backend that works smoothly with Flutter and integrates AI (Gemini + OpenAI) without performance or security issues. I understand the practical goal: ✔ Complete missing REST APIs ✔ Optimize PostgreSQL/MySQL queries ✔ Secure authentication & role access ✔ Clean architecture for long-term scaling ✔ Structured AI integration with proper error handling & cost control I have strong experience with Django, database optimization, and AI integration using OpenAI and Google AI Studio. I focus on performance, maintainability, and production safety. What genuinely interests me is refining and strengthening an existing live system — I treat backend architecture as long-term infrastructure and will approach your system as if it were my own product. I’m available immediately and ready to share a Loom walkthrough of similar APIs I’ve built. Thank you for reading.
$30 USD in 5 Tagen
0,9
0,9

Hey, this sounds like a great project to be part of. 5+ years of experience in API Development, Django, OpenAI, PostgreSQL, Python, MySQL makes me the ideal candidate for this project. I have understood your requirement and I am confident in providing a clear and professional solution according to the job description. I will work on creating missing APIs, enhancing and maintaining current APIs, and ensuring a clean and scalable backend architecture. Collaboration with the Flutter frontend developer will be seamless to ensure smooth API integration, performance optimization, and reliable data handling. I'd love to learn more about your vision and connect to explore how we can propel your project forward. Best, ~Stanislav
$140 USD in 7 Tagen
0,6
0,6

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