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Title Senior Python Full Stack Engineer (AI/LLM Experience Required) | Long-Term Opportunity Project Description We're looking for an exceptional Senior Python Full Stack Engineer with AI experience to join an ambitious product team. This is a hands-on role for someone who enjoys building scalable applications from architecture to deployment and has practical experience integrating AI technologies into real-world products. Responsibilities - Design and develop scalable backend services using Python - Build modern frontend applications with React/[login to view URL] - Integrate AI/LLM capabilities into production systems - Develop REST APIs and microservices - Work with databases, cloud infrastructure, and CI/CD pipelines - Collaborate on architecture and technical decision-making - Deliver clean, maintainable, production-quality code Required Skills - 5+ years of professional software development experience - Strong Python expertise (FastAPI, Django, Flask, or similar) - Frontend experience with React, [login to view URL], and TypeScript - PostgreSQL and database design - Docker and cloud platforms (AWS, GCP, or Azure) - Experience with Git and modern development workflows - Experience integrating AI/LLM technologies such as: OpenAI Anthropic Claude LangChain AI Agents RAG systems Vector Databases Prompt Engineering Nice to Have - Multi-agent systems - AI workflow automation - Kubernetes - DevOps experience - SaaS product development To Apply Please include: - Years of Python experience - Your strongest tech stack - Examples of AI/LLM projects you've worked on - Links to GitHub, portfolio, or LinkedIn - Your hourly rate and availability
Project ID: 40469463
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248 freelancers are bidding on average $3,059 USD for this job

With over a decade of experience in full-stack architecture and high-scale systems, I understand your need for a Senior Python Full Stack Engineer with AI/LLM expertise to drive your ambitious product goals. My background in developing scalable applications and integrating AI technologies aligns perfectly with the hands-on role you're looking to fill. For this project, my strategic insight revolves around leveraging FastAPI for efficient backend services and ensuring seamless integration of AI/LLM capabilities into your systems. Drawing from past successes like scaling Telegram Mini Apps for over 1 million users, I am confident in delivering the clean, production-quality code you seek. I invite you to reach out to further discuss how I can contribute to the success of your project. Let's connect and strategize on the roadmap to achieving your long-term goals efficiently and effectively.
$2,400 USD in 30 days
7.0
7.0

Hi, I understand you're looking for a developer who can handle both building and connecting AI features smoothly, especially for integrating LLMs into your system. I will focus first on creating a strong foundation with clean Python backend services while also designing user-friendly frontend apps using React and Next.js. I will make sure the APIs work well with databases and the cloud, and handle deployment easily with Docker and CI/CD. Communication will be clear throughout, with high-quality work to save your time and help your business grow. I am happy to discuss your plans in detail so we can develop something meaningful together. Looking forward to collaborating! Regards, Nick.
$1,500 USD in 9 days
7.0
7.0

With over 12 years of experience in AI software development, automation, and research, I am confident in my ability to contribute significantly to your product team. Throughout my career, I have successfully delivered over 600 projects, 70% of which were multi-aspect machine learning applications. These undertakings have solidified my expertise in Python, Django, Flask, Git usage, and delivering clean, efficient code. In addition to my expansive experience as a developer and researcher, I've also headed over 60 projects that harnessed AI technologies such as OpenAI and AI agents like RAG systems. I’ve been involved in the entire project cycle from inception to deployment so I understand the importance of scalability and maintainability. Doing exactly this for the product will be right up my alley. I believe what sets me apart for this role is not only my SkillTree but a drive towards efficient automation and meticulousness when coding AI applications. My passion is indeed on full display when designing efficient ways AI can reduce complexity using Kubernetes for example or when developing REST APIs. Let's join forces for us to revolutionize your product with state-of-the-art AI technologies.
$2,250 USD in 7 days
6.5
6.5

Hi I am Thuc, an AI engineer with over 6 years of experience. I'm confident with my skills to provide you best quality products. Feel free to contact me, we discuss more the project. Thanks, Thuc Tran
$1,500 USD in 7 days
6.0
6.0

This looks straightforward at first, but in my experience there’s usually a key detail that can cause issues later. I’ve handled similar projects before and can outline a practical approach for you. For similar work and case studies, feel free to check my profile: https://www.freelancer.com/u/Microlent Let me know if you I'd like me to walk you through the plan. – Rajesh Rolen
$2,250 USD in 7 days
7.1
7.1

Having a extensive 10+ years background in AI and a PhD in AI & Machine Learning from COMSATS, I strongly believe I'm an excellent fit for your Senior Python Full Stack Engineer position. With my impressive expertise in Computer Vision, NLP, Generative AI and Cloud Integrations, I can confidently deliver hands-on technical leadership on usage of AI/LLM technologies such as OpenAI and LangChain among others to provide AI integrations into real-world architecture systems. Additionally, I am fully versed with Kubernetes and DevOps while my SaaS product development skills enable me to see beyond just getting the job done but enables me have a keen eye for an impactful end-user experience. While continuously undertaking Post-doc research on Multiple-agent systems and AI workflow automation means I am deeply in tune with the latest approaches to delivering high-quality applications. Lastly but not least , having had experience working for years for major organizations like Unilever Pakistan gives me an upper hand expertise-wise where project management is concerned especially with Agile methodologies. In conclusion,I'm excited about the opportunity to bring this unique blend of skills and competencies to create significant impact for your organization.
$3,000 USD in 10 days
5.5
5.5

With my 14+ years of professional experience, I strongly believe I have what it takes to be a valuable asset for your team. My expertise in Django, Git, NoSQL Couch & Mongo, and an all-encompassing set of tech-related skills align perfectly with what you demand from a Senior Python Full Stack Engineer. The fluency in integrating AI/LLM technologies you expect is not just an add-on to my repertoire, as it falls under 'Basic AI & LLM Knowledge' which is very much part of my skillset due to my experience with Hugging Face and LangChain using Python. If you choose me for the job, you can expect clean, maintainable, production-quality code without the need for micro-managing. Apart from high-quality code delivery within deadlines, I'll contribute to your team's deep development workflows knowledge as well. Finally, as a full-stack developer excelling in multiple frameworks including TypeScript, PostgreSQL, Docker and AWS or GCP or Azure underscores my versatility and adaptability to new environments needed for your project’s success. Let’s get down to business and let me know how best we can collaboratively take your ambitious product to greater heights!
$3,000 USD in 25 days
4.5
4.5

Hello, I’m a skilled Python developer with 6+ years of experience building robust, efficient, and scalable applications. I specialize in developing custom solutions for web development, automation, data processing, and API integration to help businesses streamline operations and solve real-world problems. My Python Skills Includes: -Web development using Django, Flask, FastAPI -Scripting and automation for repetitive tasks and workflows -Data extraction, processing, and visualization (Pandas, NumPy, Matplotlib) -REST API development and third-party integrations -Web scraping and data mining -Code optimization, bug fixing, and performance improvements I focus on writing clean, maintainable code with a strong attention to detail and performance. Whether you need to build a full-scale web application, automate complex processes, or extract valuable insights from data, I bring both the technical skills and problem-solving mindset to help you succeed. Let’s turn your ideas into working Python solutions! Regards, Nikita Gupta
$1,500 USD in 7 days
4.5
4.5

Hi, I'm founder of Broadifi Tech — we build web & mobile apps, SaaS platforms, and AI products (LLMs, RAG, computer vision). If you're planning a web or mobile project, we'd be a great fit. Would love to connect and explore ideas. Thanks Suman
$2,250 USD in 7 days
4.5
4.5

Hi, I've developed complex backend services using Python and built modern frontend applications with React, integrating AI technologies like OpenAI and LangChain into production systems. I can help design scalable architectures and collaborate on technical decisions. If this aligns with your needs, we can start with a small project to ensure a great fit before moving forward. Best Regards, Ivica
$2,250 USD in 7 days
4.1
4.1

Hi there, We are excited about the opportunity to work with you on developing your website. With strong experience in both front-end and back-end development, We can build a robust, scalable, and user-friendly platform that supports all the core features you’re looking for and tailored as per your requirement. Why Us? • 10+ years of experience in full-stack development • Built several website in all kind of domain platforms (portfolio available on request) • Strong grip on user flows, admin control, and clean UI/UX design • Expertise in PHP, JavaScript, MySQL, HTML/CSS, Laravel and modern frameworks Timeline & Estimate: Depending on final scope after the detail discussion with you We’d love to discuss your vision further and share relevant portfolio examples. Let’s build something powerful together! Looking forward to your response. Best regards, Vishal Nasit
$1,500 USD in 15 days
4.2
4.2

Hi, I have reviewed your project requirements and I’m confident I can deliver accurate, data-driven, and scalable solutions for your needs. I bring 9+ years of combined experience in Python development, Data Science, Data Analytics, and Business Intelligence, helping clients turn raw data into meaningful insights and actionable dashboards. My Core Expertise Includes: Node js , React Js, Mongo , Blockchain, crypto currency Python Development: Pandas, NumPy, Scikit-learn, FastAPI, Flask, Django Data Science & Machine Learning: Data cleaning, EDA, predictive modeling, AI/ML solutions Data Analytics: Statistical analysis, reporting, automation, data mining Power BI: Interactive dashboards, DAX, Power Query, data modeling, KPI reporting Databases & Big Data: SQL, NoSQL, SparkML AI & Frameworks: TensorFlow, PyTorch, Cursor, Calude, gemini, nano, chatgpt. I focus on clean code, clear insights, performance optimization, and business-oriented outcomes. I ensure timely delivery and transparent communication throughout the project lifecycle. Let’s connect to discuss your requirements in detail and define the best approach for your project. Looking forward to working with you. Regards, Anju
$2,000 USD in 30 days
4.2
4.2

Hi There: Hope this note finds you in great spirits. Having over 8 years of experience in Python development, web development using Django framework, automation using Python, development of test framework based on robot framework, and telecom testing experience in LTE, UMTS technologies. ¥ Experienced in back-end web development using the Django/Flask framework ¥ Development of front-end logic using JavaScript, jQuery ¥ Experienced in databases like PostgreSQL, and MongoDB using Django ORM ¥ Good experience in developing Django/Flask REST API and implementing features according to a requirement ¥ Designing the front-end and back-end modules of different apps for the project ¥ Experience in AI, ML, NLP & Deep learning. ¥ Experienced in microservices architectural design and development ¥ Exposures in GUI, CLI and API-based automation using python ¥ Exposure to GUI automation in auto, selenium web driver, pyautogui ¥ Exposure to framework development-related library development from scratch Have built Report generation, BI and Survey platforms. Will love to share the Case studies and client references if required. https://www.freelancer.com/projects/python/Programmer-for-AngularJS-Python-twisted/details We are a team of IT professionals mentored by very experienced leadership. We offer solutions on WEB and Mobile technologies. Please visit our company site www.kennedia.net. Look forward to hearing from you!! Thanks, Raman
$3,000 USD in 30 days
3.5
3.5

❤️Hi there ❤️ As a verified engineer, I can do your project perfect. Please check my reviews to verify my skills. To be honest, developers with many comments are agents of agencies or outsourcing companies. Therefore, I believe I am the most suitable candidate for your project. I have a few ideas for your project, and I would like to confirm via private chat whether they align with your thoughts. Warm Regards, Ruslan
$1,500 USD in 17 days
3.6
3.6

Dear Sir/Madam, I am an experienced Python Developer with strong expertise in building scalable backend systems, APIs, automation tools, and full-stack applications. I specialize in delivering clean, efficient, and production-ready solutions. I have successfully developed and deployed multiple live applications including healthcare platforms, legal service apps, school management systems, fintech apps, and real-time communication systems. My Core Python Expertise ✔ Django & Django REST Framework ✔ FastAPI (High-performance APIs) ✔ Flask ✔ SQLModel / SQLAlchemy ✔ PostgreSQL / MySQL / MongoDB ✔ Supabase Integration ✔ Authentication (JWT, OAuth) ✔ Payment Gateway Integration (PhonePe, Razorpay, Stripe) ✔ Web Scraping (BeautifulSoup, Selenium) ✔ Automation Scripts ✔ WebSocket & Real-time Systems ✔ Docker Deployment ✔ AWS / VPS Deployment ✔ REST API Design & Optimization What I Can Build For You Secure REST APIs SaaS backend architecture Admin dashboards Real-time chat systems Payment systems Data processing systems Microservices architecture AI/ML API integration Custom business logic systems Recent Project Experience Healthcare booking & wallet system Legal consultation backend platform School ERP & management API Fintech wallet & transaction management Real-time chat application (WebSocket + MQTT) Location-based services & geo APIs
$1,800 USD in 50 days
3.0
3.0

Hi, Tensor Labs fits the Senior Python Full Stack Engineer role perfectly. We have 20+ years of combined Python experience spanning web development, data engineering, ML/AI, and SaaS platforms. Our Python full-stack expertise: ✅ Python backend (FastAPI, Django, Flask) with clean REST APIs ✅ React.js/Next.js frontend with TypeScript ✅ PostgreSQL/MySQL database design and optimization ✅ Data engineering (ETL pipelines, Snowflake, Amazon Redshift) ✅ ML/AI integration (scikit-learn, TensorFlow, LangChain) ✅ AWS deployment with Docker/Kubernetes and CI/CD We've delivered production Python applications for pharma, fintech, SaaS, and e-commerce clients with a 5.0 rating and 100% on-time delivery. We're available immediately and can work in your timezone. Please share the project details and we'll discuss how we can contribute. Best, Tensor Labs
$2,500 USD in 30 days
3.2
3.2

Hello Client, We have expert Senior python developer AI/LLM Experience developer. Looking forward to working with you. Regards, Manish
$2,250 USD in 30 days
1.7
1.7

⭐ I handled a similar project ⭐, Happy to show you what works before you commit. Built scalable Python backends and React frontends integrating AI and LLM technologies for real-world applications. The role’s focus on full-stack development with AI integration aligns strongly with my recent projects. Experience includes AI agents, LangChain, vector databases, and prompt engineering, ensuring effective AI deployment. Specializing in Python and React, I prioritize performance, secure coding, and polished user experiences across cloud environments. Let’s chat about your project goals and priorities—worst case, you walk away with a free consultation and a clearer understanding of your project. Kind regards, Curtley
$2,100 USD in 14 days
1.8
1.8

Hello! I’ve built a scalable AI-driven application very similar to what you’re looking for, achieving a 30% performance improvement with seamless integration of LLMs. I can share the implementation details in chat if you're interested. I typically start by designing a robust backend with FastAPI for rapid API development, coupled with a React frontend for a smooth user experience. I also prioritize clean, maintainable code, ensuring the system can evolve with your needs. What specific AI capabilities are you looking to integrate into your application? If you’re open, I can share my relevant experience and we can explore how it aligns with your project.
$2,250 USD in 7 days
0.6
0.6

Hello The hard part here is keeping the backend, frontend, and LLM behavior consistent as the system scales. Another challenge is managing latency and cost while supporting interactive AI features. There’s also complexity around maintaining data integrity and observability across services, especially with evolving model behavior in production. How is the current system structured between frontend, backend, and AI components? Are LLM interactions synchronous in user flows, or handled through background processing? What level of monitoring exists today for model performance, errors, and data drift? Happy to discuss how this is currently set up.
$2,420 USD in 7 days
0.0
0.0

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