276 to 300 of 318 Remote FastAPI Jobs

Own and evolve the product architecture from Open Banking integrations to AI-driven recommendation systems. Lead development of the mobile app (React Native) and backend (Node.js or Python/FastAPI). Integrate with Open Banking APIs (TrueLayer, Yapily, etc.) to securely connect and manage financial data. Design and implement pipelines to analyse transaction data and user conversations using embeddings and … years experience) comfortable taking technical ownership in a fast-paced startup. Proficient with React Native (or strong React + mobile experience). Backend experience with Node.js or Python (FastAPI/Django) and RESTful API design. Experience integrating Open Banking APIs (TrueLayer, Yapily, Salt Edge, etc.). Hands-on experience with AI/LLM-powered systems especially embedding models (OpenAI, Cohere … team (UK preferred) with occasional meetups in London. Work alongside founders who value autonomy, communication, and long-term impact over quick fixes. Tech Stack Snapshot React Native Node.js/FastAPI TypeScript PostgreSQL Pinecone/Qdrant OpenAI/Cohere APIs TrueLayer/Yapily (Open Banking) AWS This role suits someone whos built apps end-to-end, thrives on ownership, and is More ❯

Own and evolve the product architecture — from Open Banking integrations to AI-driven recommendation systems. Lead development of the mobile app (React Native) and backend (Node.js or Python/FastAPI). Integrate with Open Banking APIs (TrueLayer, Yapily, etc.) to securely connect and manage financial data. Design and implement pipelines to analyse transaction data and user conversations using embeddings and … years’ experience) comfortable taking technical ownership in a fast-paced startup. Proficient with React Native (or strong React + mobile experience). Backend experience with Node.js or Python (FastAPI/Django) and RESTful API design. Experience integrating Open Banking APIs (TrueLayer, Yapily, Salt Edge, etc.). Hands-on experience with AI/LLM-powered systems — especially embedding models (OpenAI, Cohere … team (UK preferred) with occasional meetups in London. Work alongside founders who value autonomy, communication, and long-term impact over quick fixes. Tech Stack Snapshot React Native • Node.js/FastAPI • TypeScript • PostgreSQL • Pinecone/Qdrant • OpenAI/Cohere APIs • TrueLayer/Yapily (Open Banking) • AWS This role suits someone who’s built apps end-to-end, thrives on ownership, and More ❯

Senior Software Engineer/Developer (Python FastAPI Data) London to £90k Are you a data centric Software Engineer with strong Python and SQL skills? You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting technology provider that focusses on developing a complex SaaS calculation platform for rapidly growing Cybersecurity insurance … Subsidised gym membership Season ticket loan Employee Assistance Programme Impactful role with great career progression Apply now to find out more about this Senior Software Engineer/Developer (Python FastAPI Data) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people More ❯

We are a Global Recruitment specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Role Title: Software Engineer (Power Apps) Location: Telford- Hybrid Duration: 6 Months Pay Rate More ❯

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables users to … about real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and … in Computer Science, Engineering, Physics, Mathematics, or a related technical field 2+ years of experience building web applications in a production environment Strong experience with Python and API frameworks (FastAPI, Flask, etc.) Proficiency with React and TypeScript Comfort or interest in functional programming principles and clean code architecture A genuine interest in engineering and the physical world Ability to thrive More ❯

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables users to … about real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and … in Computer Science, Engineering, Physics, Mathematics, or a related technical field 2+ years of experience building web applications in a production environment Strong experience with Python and API frameworks (FastAPI, Flask, etc.) Proficiency with React and TypeScript Comfort or interest in functional programming principles and clean code architecture A genuine interest in engineering and the physical world Ability to thrive More ❯

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables users to … about real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and … in Computer Science, Engineering, Physics, Mathematics, or a related technical field 2+ years of experience building web applications in a production environment Strong experience with Python and API frameworks (FastAPI, Flask, etc.) Proficiency with React and TypeScript Comfort or interest in functional programming principles and clean code architecture A genuine interest in engineering and the physical world Ability to thrive More ❯

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables users to … about real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and … in Computer Science, Engineering, Physics, Mathematics, or a related technical field 2+ years of experience building web applications in a production environment Strong experience with Python and API frameworks (FastAPI, Flask, etc.) Proficiency with React and TypeScript Comfort or interest in functional programming principles and clean code architecture A genuine interest in engineering and the physical world Ability to thrive More ❯

Software Engineer – Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at a time, this system enables users to … about real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and … in Computer Science, Engineering, Physics, Mathematics, or a related technical field 2+ years of experience building web applications in a production environment Strong experience with Python and API frameworks (FastAPI, Flask, etc.) Proficiency with React and TypeScript Comfort or interest in functional programming principles and clean code architecture A genuine interest in engineering and the physical world Ability to thrive More ❯

Role Overview: We are seeking a Python Developer with strong expertise in FastAPI to join an exciting Reinforcement Learning (RL) Gym project . You will design, build, and optimize scalable APIs, collaborate with researchers and engineers, and deliver high-quality backend services to support reinforcement learning experiments and simulations. Prior RL Gym experience is not mandatory but would be a … plus. What does day-to-day life look like? Design, build, and maintain FastAPI-based services for experimentation workflows and simulation environments. Collaborate with ML engineers to expose APIs for training, evaluation, and benchmarking. Write efficient, production-grade Python code with a strong emphasis on scalability and maintainability. Troubleshoot performance issues, optimize pipelines, and ensure smooth deployment of applications. Requirements … 5+ years of professional Python development experience including 3+ years of strong experience in FastAPI Experience with REST APIs, async programming , and API lifecycle management. Solid understanding of software engineering best practices (testing, CI/CD, version control, design patterns). Familiarity with NumPy, Pandas, and PyTorch/TensorFlow is a plus. Good to have : Exposure to Reinforcement Learning environments More ❯

experience in most of the following: - Strong commercial python development experience - Experience working on business transaction projects (pension, banking, accounting, payments, back-office processing etc) - Framework experience - Flask,Django, FastAPI etc - Solid MySQL skills - Experience working in a fast-paced financial services/accounting - Azure cloud exposure - Strong communication and stakeholder engagement skills - Any experience integrating automation solutions into existing … development and progressing quickly in this market leading company please apply now. Python Developer London, Birmingham, Manchester, Leeds, Bristol (long term remote working) Python, Flask ,Azure, MySQL, API, Django, FastAPI, accounting, financial services More ❯

Senior+ Software Engineer - Python | FastAPI | AWS 💵 £90,000-120,000 + Bonus and Stock 📦 Flexible benefits | 90 day work-from-anywhere perk 💻 Python, FastAPI, gRPC, PostgreSQL, DynamoDB, AWS 📍 Remote first or hybrid (London) InsurTech | high traffic, scalable, event-driven, microservices development We’ve partnered with one of the UK’s most exciting scale-ups in the Insuretech space over the … exposure to cloud-native architecture, contribute to new platform initiatives, and accelerate your path to seniority. They're building out high traffic, scalable, cloud-native, microservices using Python with FastAPI, gRPC GraphQL, AWS (EKS). You'd lead a rotating squad with exposure to multiple domains and technical challenges around developing complex, high volume, public facing applications used by many. … This opportunity blends scale-up security with engineering maturity, and long-term growth potential. Tech stack: Python (FastAPI) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What you’ll be doing: ✅ Owning the design and development of scalable backend systems ✅ Working across rotating product squads with full domain exposure ✅ Deploying and owning your code in production (AWS EKS More ❯

clean code, scalable architecture, and being part of a team that’s pushing boundaries. What you’ll do Design, build, and optimize high-performance backend systems in Python and FastAPI Develop and maintain backend systems that handle large volumes of real-time data Write clean, testable, and maintainable code following best practices Contribute to system architecture decisions and help shape … Take ownership of projects end-to-end in a collaborative, fast-moving environment What we’re looking for Strong professional experience with Python Solid experience building RESTful APIs with FastAPI (or similar frameworks like Flask/Django) Passion for performance, scalability, and automation A proactive mindset — someone who loves solving problems and experimenting with new tech If this sounds like More ❯

Full-Stack Engineer – London (Hybrid) Our client is a fast-growing software business delivering market-leading ticketing products to forward-thinking organisations worldwide. Their platform is used by hundreds of thousands of people and powers ticket sales for some of More ❯

Full-Stack Engineer – London (Hybrid) Our client is a fast-growing software business delivering market-leading ticketing products to forward-thinking organisations worldwide. Their platform is used by hundreds of thousands of people and powers ticket sales for some of More ❯

Full-Stack Engineer – London (Hybrid) Our client is a fast-growing software business delivering market-leading ticketing products to forward-thinking organisations worldwide. Their platform is used by hundreds of thousands of people and powers ticket sales for some of More ❯

Full-Stack Engineer – London (Hybrid) Our client is a fast-growing software business delivering market-leading ticketing products to forward-thinking organisations worldwide. Their platform is used by hundreds of thousands of people and powers ticket sales for some of More ❯

Full-Stack Engineer – London (Hybrid) Our client is a fast-growing software business delivering market-leading ticketing products to forward-thinking organisations worldwide. Their platform is used by hundreds of thousands of people and powers ticket sales for some of More ❯

Responsibilities: Build and maintain end-to-end product features used by enterprise customers. Develop modern, responsive interfaces using . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We're … Looking For: Proven experience as a Full-Stack Engineer in a startup or fast-paced environment. Strong proficiency in and Python (FastAPI/Django) . Experience shipping scalable, production-grade software. Exposure to or interest in AI/ML-driven products . Startup experience or comfort with high ownership and autonomy is a massive plus . Package: £100,000 base More ❯

maintain end-to-end product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re … Looking For: Proven experience as a Full-Stack Engineer in a startup or fast-paced environment. Strong proficiency in React/Next.js and Python (FastAPI/Django) . Experience shipping scalable, production-grade software. Exposure to or interest in AI/ML-driven products . Startup experience or comfort with high ownership and autonomy is a massive plus . Package More ❯

maintain end-to-end product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re … Looking For: Proven experience as a Full-Stack Engineer in a startup or fast-paced environment. Strong proficiency in React/Next.js and Python (FastAPI/Django) . Experience shipping scalable, production-grade software. Exposure to or interest in AI/ML-driven products . Startup experience or comfort with high ownership and autonomy is a massive plus . Package More ❯

maintain end-to-end product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re … Looking For: Proven experience as a Full-Stack Engineer in a startup or fast-paced environment. Strong proficiency in React/Next.js and Python (FastAPI/Django) . Experience shipping scalable, production-grade software. Exposure to or interest in AI/ML-driven products . Startup experience or comfort with high ownership and autonomy is a massive plus . Package More ❯

maintain end-to-end product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re … Looking For: Proven experience as a Full-Stack Engineer in a startup or fast-paced environment. Strong proficiency in React/Next.js and Python (FastAPI/Django) . Experience shipping scalable, production-grade software. Exposure to or interest in AI/ML-driven products . Startup experience or comfort with high ownership and autonomy is a massive plus . Package More ❯

maintain end-to-end product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re … Looking For: Proven experience as a Full-Stack Engineer in a startup or fast-paced environment. Strong proficiency in React/Next.js and Python (FastAPI/Django) . Experience shipping scalable, production-grade software. Exposure to or interest in AI/ML-driven products . Startup experience or comfort with high ownership and autonomy is a massive plus . Package More ❯

Senior Data Engineer (Python, FastAPI, GCP) | Permanent | London (1 day a week on-site) 🚀 Series C Scale-up | $50m raise in 2025 My client are a fast-scaling SaaS scale-up (Series C, $50m raised in 2025) that is redefining how global powerhouses operate. Their AI-enabled platform supports over 1,000+ brands worldwide, streamlining business processes like never seen … scope to grow into leadership as the data team scales. ✨ Remote-first culture – flexibility to work from anywhere What you’ll be doing: API strategy & development – own and scale FastAPI endpoints that deliver real-time access to platform data. Data pipeline development – build ingestion and replication pipelines with best-in-class observability, latency, and resilience. Platform technical vision – influence architecture … reliability and trustworthiness. Collaboration – partner with engineers, product managers, and commercial teams to deliver production-grade solutions. Tech stack and requirements: Python – must-have, with production-grade engineering expertise FastAPI – must-have, proven experience building APIs in production Google Cloud Platform (GCP) – must-have, ie BigQuery, Cloud Run, and Cloud Storage dbt – strong advantage, with scope to shape best practice More ❯