1 to 25 of 31 FastAPI Jobs in the City of London

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 ...

your primary language Solid understanding of software engineering principles (SOLID, testing, clean code) Experience with AWS cloud services Hands-on experience with Django, FastAPI and/or Flask Strong REST API development and integration experience Experience working within Agile/Scrum teams Excellent communication and problem-solving skills Nice ...

engineers and leading technical projects Comfortable working in fast-paced startup environments Experience with AI/LLM integrations is highly desirable Python backend experience (FastAPI, Flask, Django) is beneficial Excellent communication and stakeholder management skills This role offers hybrid working, with an office location based in London. For any additional ...

technical roadmap, guide architectural decisions, and ensure engineering excellence across backend services. Python Engineering Design and build robust, secure, and scalable microservices using Python (FastAPI, Django, Flask). System Architecture Lead the design of distributed systems, event-driven architectures, and high-availability platforms. Team Mentorship Coach engineers, conduct code reviews ...

pensions covenant/advisory/trustee-facing tools, and strong ability to connect technical design to covenant outcomes. Experience with Python-based services (e.g., FastAPI) and modern web stacks (e.g., Next.js/React.js) in real-world delivery. Practical experience delivering GenAI/agentic solutions (prompt engineering, RAG, governance patterns ...

practices Requirements 7+ years of backend software engineering experience building and scaling production systems Strong Python development experience with modern backend frameworks such as FastAPI, Flask or Django Deep understanding of PostgreSQL, database optimisation and performance tuning Experience scaling distributed systems and data-intensive applications Strong knowledge of Redis, caching … containerised deployments Familiarity with CI/CD pipelines, automated testing and Git-based development workflows Excellent problem-solving and communication skills Technology Stack Python FastAPI/Flask/Django PostgreSQL Redis Celery Kafka/RabbitMQ/Azure Service Bus Docker Kubernetes Azure/AWS/GCP REST APIs Microservices Architecture ...

role, you will need: 5+ years commercial experience of Software Engineering with Python as the core programming language (including Django, Flask and/or FastAPI) Strong system design and architecture experience A strong interest, ideally with experience in the Financial Services/Investment Management industry If your experience ...

Salary: £70,000 - £160,000 + meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 2/3 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 ...

with the founding team — fast decisions, no bureaucracy What we're looking for: ✅ 5+ years building production software ✅ Strong full-stack chops (Python/FastAPI + React/TypeScript or equivalent) ✅ Solid SQL & data modelling instincts — comfortable in data-heavy B2B products ✅ Bonus: experience with agentic/LLM-powered products ...

team as it grows. The best candidates will be energised by that scope, not daunted by it. REQUIREMENTS: Strong Python in production, ideally including FastAPI or similar async frameworks Proven experience building and deploying LLM-powered applications, not prototypes that never saw users Solid understanding of data modelling and PostgreSQL ...

comparisons) Sharing our data and services externally (e.g., via APIs) so that others can build upon our work Tech Stack: APIs & backend: Python, FastAPI, PostgreSQL Data & infrastructure: Snowflake, Docker, AWS (ECS, S3, etc.), Pulumi, Prefect, GitHub Actions Search: Vespa Data Science: PyTorch, Huggingface, Pydantic AI, Pandas, Spacy, Weights & Biases About ...

products Proven ability to make architecture decisions Comfortable in fast-moving, ambiguous environments Startup/founding engineer background Experience scaling early-stage products Python, FastAPI, React, TypeScript, LLMs, agent systems, Postgres, Redis, Kubernetes, GCP Why this role stands out: Real ownership and influence Profitable company → equity is meaningful Fast-moving ...

days on paper, currently much more flexible) • Location: Tower Hill, London • Tech stack: Python, GCP, Vertex AI, Kubernetes (GKE), Kubeflow, Docker, Terraform/Pulumi, FastAPI, PostgreSQL, BigQuery, PyTorch, LLMs, Vector Databases • Visa sponsorship: cannot sponsor Interested? Please apply below. ...

Maintain high-quality technical documentation and engineering standards. Required Experience Technical Skills 8+ years of commercial backend engineering experience. Strong Python development experience, including FastAPI, Flask or similar frameworks. Proven experience building and scaling backend services and APIs. Strong understanding of microservices architectures and event-driven systems. Experience designing … building serverless applications using AWS Lambda. Exposure to Agile delivery environments and Jira. AWS certifications or equivalent cloud certifications. Tech Stack Languages & Frameworks Python FastAPI Flask Cloud & Infrastructure AWS Docker ECS Kubernetes Terraform CloudFormation Architecture Microservices Event-Driven Systems REST APIs GraphQL gRPC Databases PostgreSQL MySQL MongoDB DevOps & Monitoring GitHub ...

core to how they work. Tech Stack Expert Python, advanced SQL, deep Linux knowledge PostgreSQL, Snowflake Apache Kafka, Apache Airflow Django, Flask or FastAPI TDD, BDD, pair programming Java familiarity a plus What They Are Looking For Principal or Staff level Python engineer with strong leadership skills Degree in Computer ...

core to how they work. Tech Stack Expert Python, advanced SQL, deep Linux knowledge PostgreSQL, Snowflake Apache Kafka, Apache Airflow Django, Flask or FastAPI TDD, BDD, pair programming Java familiarity a plus What They Are Looking For Principal or Staff level Python engineer with strong leadership skills Degree in Computer ...

retention, and partner with the founders on what the team builds and why. High ownership, high intensity, fast. The stack is Python and FastAPI on the backend, React and TypeScript on the frontend, Postgres, ElasticSearch and vector databases for data, and LLMs, agents and RAG across the AI layer. What ...

compliance reporting, integrations with financial data providers and banking APIs, and the frontend dashboards that make that data actionable for clients. The Stack Python · FastAPI · Pydantic · React · Vite · Postgres · Redis · Vercel · Render · Kinde ✅ What they're looking for Strong Python development experience, particularly in data-intensive or financial applications Solid ...

bonus • Working: 3 days in office (Hybrid, Goodge Street, London) • Note: First one month will be 5 days onsite • Tech stack: Python, SQL, APIs, FastAPI, Streamlit, TypeScript, React, Next.js • Visa: This role cannot sponsor Interested? Please apply below. ...

core to how they work. Tech Stack Expert Python, advanced SQL, deep Linux knowledge PostgreSQL, Snowflake Apache Kafka, Apache Airflow Django, Flask or FastAPI TDD, BDD, pair programming Java familiarity a plus What They Are Looking For Principal or Staff level Python engineer with strong leadership skills Degree in Computer ...

core to how they work. Tech Stack Expert Python, advanced SQL, deep Linux knowledge PostgreSQL, Snowflake Apache Kafka, Apache Airflow Django, Flask or FastAPI TDD, BDD, pair programming Java familiarity a plus What They Are Looking For Principal or Staff level Python engineer with strong leadership skills Degree in Computer ...

business grows. The environment is fast-paced, collaborative and ownership-driven, with a strong emphasis on pragmatic engineering, delivery, and continuous improvement. Stack: Python, FastAPI, Pydantic, Docker, Kubernetes What do you need? Strong commercial experience in Python engineering Proven experience leading engineers Domain experience across FinTech, Insurance, Trading, Banking ...

environments, diagnosed the problems, fixed them, and unlocked the next phase of growth. This is about scaling products, not just teams. Tech Stack: Python · FastAPI · React · TypeScript · GCP Salary: £190,000 - £270,000 + Equity Working Arrangements: 3 days per week in Central London office Why it might interest ...

Lead Backend Engineer Climate Tech Nonprofit £90-£95k per year London Hybrid 2 days in London/3 remote Python FastAPI PostgreSQL GCP Docker Terraform Climate impact Energy-system modelling Backed by major philanthropic funders Im working with a climate-tech nonprofit building software that helps countries plan cleaner, more ...

Manatal is an HRTech software service (B2B SaaS) company headquartered in Bangkok, Thailand. Manatal is one of the fastest-growing start-ups in the region and is backed by Surge and Sequoia Capital. Manatal has ...