25 of 25 FastAPI Jobs in Central London

performance monitoring. Experience collaborating with engineering teams to ensure scalable and maintainable deployment. Backend & service development: Experience building production-grade Python webservices (e.g., FastAPI, Flask), developing APIs, and integrating ML components into broader systems. Software engineering practices: Comfortable with testing, code reviews, CI/CD pipelines, and version control ...

skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity ...

skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity ...

skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity ...

skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity ...

integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger ...

integrating Appian with external systems via REST APIs, web services, and connected systems. API Development & Integration - Proficient in designing and building RESTful APIs using FastAPI, Flask, or Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger ...

scalable mobile APIs (REST, HTTPS, etc.). Good principles of security management (secrets, protocols, etc.). Experience with some Python web frameworks (Django, Flask, FastAPI, etc.). Desirable Skills 👌 Can speak, or learning to speak, more than one language Experience with real-time databases. Experience with in-memory databases. Experience ...

improvement in processes and tooling within Agile workflows. Apply best practices in object-oriented design, SOLID principles, and data structures. Tech Stack: Python, FastAPI, Django AWS, Kubernetes, Helm, Terraform PostgreSQL, OpenSearch GitHub Required Experience & Skills: Strong experience building backend services in Python (any framework). Solid understanding of databases ...

Support, DevOps, SRE, or related technical roles, ideally within financial technology environments. Strong technical expertise with Python, Unix, PostgreSQL, and familiarity with Kafka, CockroachDB, FastAPI, GraphQL, Snowflake, Redis, and QuestDB or equivalent technologies. Proven experience designing and implementing monitoring and alerting tools (DataDog, Grafana). Solid experience with AWS Cloud ...

They’re Looking For Experience: 7+ years (minimum 5) in software engineering; ideally with startup exposure. Tech Stack:Frontend: React, Next.js, TypeScript Backend: Python (FastAPI, Flask, Django), Go, Rust Mindset: Founding engineer mentality – proactive, curious, thrives in fast-paced environments. Bonus: Experience in high-calibre teams (fintech, AI, or similar ...

Senior Full Stack Engineer – AI Startup – Up to 150k 🚀🧠 💰 Salary: £80,000 - £150,000 + meaningful equity 🏙️ Location : London, hybrid 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) 📈 Team size: 27 heads Our y-combinator backend client are building an elite engineering team within the AI space. ...

Salary: £60,000 - £85,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 1/2 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used ...

integrations. Collaborate directly with customers to deliver real-world outcomes. Balance speed and scalability in a fast-moving startup environment. Tech Stack Python (FastAPI), Postgres TypeScript, Next.js GCP, Kubernetes LLMs (OpenAI, Gemini), Speech-to-Text, Text-to-Speech Requirements 5–10 years of backend-leaning engineering experience. Strong Python experience. ...

with the experience that defines how we do it. What you will do Design and implement user-facing APIs to support frontend user flows (FastAPI) Build robust user authentication, authorisation, and account management (Auth0) Integrate payment processing and subscription management (Stripe) Design and manage user databases and data models (MongoDB ...

Shipping fast, owning production, and iterating directly with users Working closely with founders on product direction and technical decisions ⚙️ Tech Stack Next.js · TypeScript · Python (FastAPI) · PostgreSQL · Cursor · AI/ML · LLM APIs 👀 Who This Is For Someone with 3+ years building dynamic startups/scale ups Future founders! See yourself ...

work across our Python and TypeScript stack, contributing wherever the team needs you most. What You'll Be Doing: Develop and maintain FastAPI (Python) and Next.js (TypeScript) applications. Own features end-to-end - from user interface through to infrastructure and internal tooling. Navigate and contribute to diverse codebases across ...

contribute to team learning and development Technology Stack The team leverages modern technologies to deliver robust and scalable solutions: Languages & Frameworks: Python, Django, FastAPI Databases & Search: PostgreSQL, OpenSearch Cloud & DevOps: AWS, Kubernetes, Helm, Terraform Collaboration & Source Control: GitHub About the Candidate The ideal candidate will bring strong technical expertise … passion for building backend systems that scale. Essential skills and experience: Proficient in Python development, with experience in any major framework (e.g., Django, FastAPI) Strong understanding of databases, object-oriented design, data structures and SOLID principles Analytical and problem-solving mindset, with a focus on continuous improvement Ability to collaborate ...

Senior Software Engineer (Python - FastAPI) This fast-growing consultancy is pushing the boundaries of AI and data science, helping clients turn complex challenges into scalable, production-ready solutions. They’re now hiring a Senior Software Engineer who can blend deep technical expertise with a practical, delivery-focused mindset. Role Overview … data-led software solutions. Developing scalable data pipelines and backend services that support complex modelling work. Setting standards for clean, efficient engineering across Python(FastAPI), SQL and cloud environments. Training, tuning and deploying machine learning models into production. Creating processes for robust data extraction, transformation and management. Integrating new solutions ...

benchmark these systems rigorously to ensure they actually work, not just "feel" smart. Build the Backend Foundation: You will spend significant time in Python (FastAPI, SQLAlchemy) building the APIs, data structures, and services that power the product. You are an engineer who ensures the "AI" is delivered on reliable, production … Experience Production Engineering (5+ years): You are a strong software engineer first. You have extensive experience building and maintaining backend services in Python (ideally FastAPI or similar async frameworks) deployed to modern cloud providers (GCP/AWS) or point solutions (Railway, Render, Vercel) Applied AI Architecture: You have built complex ...

cost/safety guardrails). Essential Requirements 3-6+ years building production backends/services , with shipped work and clear ownership. Strong Python (FastAPI) and database skills ( PostgreSQL/MongoDB ); solid API design fundamentals. Familiarity with AWS serverless patterns and Docker for bespoke services; basic CI/CD concepts. … Security hygiene (secrets, permissions, least-privilege) and practical data-privacy basics. Planning & execution in Linear (or similar). Tools & Stack Backend/Runtime: Python (FastAPI), Node.js. Datastores: PostgreSQL, MongoDB (as appropriate), Redis (caching/sessions). Vectors/Embeddings: Chroma (or similar). AI Models & APIs: Claude (Anthropic), Gemini (Google ...

flows, while also contributing to the frontend where needed. What you’ll do Design and build backend services and APIs in Python, typically using FastAPI or similar frameworks Build and maintain frontend features using React and Next.js Own data models, background workers, async processing, and system behaviour Work with relational … Collaborate closely with other engineers to ship production features quickly and safely How the stack looks in practice Python for backend services and APIs FastAPI or similar modern Python frameworks React with Next.js on the frontend Relational databases with Redis for caching and background jobs Async processing and worker based ...

Technical Lead | Product Technical Lead | Tech Lead | Product Manager | AI/Data Science | Python | FastAPI | SaaS | Hybrid 2 days a week | Central London | £85,000 + 15% bonus I am currently working with a brilliant consultancy with deep expertise in their field of Data and Cyber Security solutions, predominantly with … fullest. Key skills Strong software engineering skills, delivering end-to-end software products. Highly product orientated. Highly skilled in Python development, with knowledge of FastAPI framework. Good databases knowledge with schema design and SQL. Some front-end development preferably TypeScript & React is highly desirable. Experience of designing scalable systems ...

Founding BE Engineer (Python, FastAPI) Salary up to £85,000 +Equity London - 3 days a week Early stage MedTech Startup, building tools that help design better, fairer, and more effective clinical trials. Their work sits at the intersection of data, science, and human decision-making, which have a direct impact … direct impact on shaping the product and overall feel of the platform and useability. Design and build core back-end services in Python (FastAPI) Produce prototypes, including data ingestion pipelines, embedding workflows, and recommendation components Develop high-performance APIs supporting semantic search, clustering insights, and protocol-generation features Deploy, operate ...

Founding FullStack Engineer (VueJS/React, TypeScript,Python, FastAPI) Salary up to £95,000 +Equity London - 3 days a week Early stage MedTech Startup, building tools that help design better, fairer, and more effective clinical trials. Their work sits at the intersection of data, science, and human decision-making, which … direct impact on shaping the product and overall feel of the platform and useability. Design and build back-end services and APIs in Python (FastAPI) that power the core platform Develop front-end components in Vue.js , turning complex data and AI outputs into intuitive user experiences Own features ...