26 to 50 of 114 FastAPI Jobs in London

front-end solutions. Responsibilities Build responsive, accessible and performant front-end applications using React, TypeScript and Next.js. Integrate with REST APIs and Python/FastAPI services, including large JSON data sets. Create reusable, component-driven UI patterns within modular, portal-style architectures. Work with backend teams to define API contracts ...

challenges regularly We're united by our mission, focused execution, and speed We deploy to production multiple times a day 🛠️ Tech Stack Backend: Python (FastAPI) + Typescript (express) Frontend: React + Typescript Infrastructure: AWS (serverless!), terraform Containerisation: Docker Database: PostgreSQL + DynamoDB CI/CD: GitHub actions + Blacksmith runners ...

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 ...

Interested in building software that directly impacts how businesses operate. Preferred Experience 5+ years of software engineering work experience. Experienced in Typescript, Python, React, FastAPI, Django, Flask, and AWS. Strong experience designing distributed systems and scalable applications. Experience owning production systems and making architectural decisions. Familiarity with cloud infrastructure, APIs ...

Interested in building software that directly impacts how businesses operate. Preferred Experience 5+ years of software engineering work experience. Experienced in Typescript, Python, React, FastAPI, Django, Flask, and AWS. Strong experience designing distributed systems and scalable applications. Experience owning production systems and making architectural decisions. Familiarity with cloud infrastructure, APIs ...

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 ...

software solutions, providing technical guidance to a small team, ideally offering experience across. Solid Python web development in a B2B product setting Django FastAPI/Flask beneficial AWS DevOps Agile Please note, this role requires Full Time attendance in their central London office - please only apply if that is something ...

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 ...

observability systems that enable our engineers to ship with confidence. Key Skills: - Solid programming skills in Python (plus experience with web libraries like FastAPI, Flask, or Django) - Hands-on experience with ML model deployment and monitoring in production Knowledge of containerization (Docker) - Experience with CI/CD pipelines and cloud ...

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 ...

class - 2;1 Degree in Comp Sci or STEM subject from a Top ranked University 3+ years of experience in Python development Tech: Python, FastAPI, Pydantic, PostgreSQL, AWS DevOps tools: Kubernetes, Docker,Terraform, Jenkins Very strong software engineering principles Enthusiasm for startup environment and cross-functional teams Passion for automation ...

documentation for systems, processes, and deployments.Essential Skills & Experience Strong commercial experience with Python, JavaScript, and SQL.Experience working with back-end frameworks such as Flask, FastAPI, Node.js, or similar.Hands-on experience with cloud platforms such as AWS, Azure, or DigitalOcean.Experience developing or supporting Robotic Process Automation (RPA) solutions.Strong analytical and problem ...

systems, processes, and deployments. Essential Skills & Experience Strong commercial experience with Python, JavaScript, and SQL. Experience working with back-end frameworks such as Flask, FastAPI, Node.js, or similar. Hands-on experience with cloud platforms such as AWS, Azure, or DigitalOcean. Experience developing or supporting Robotic Process Automation (RPA) solutions. Strong ...

delivering end-to-end software products. Proven ability to lead or mentor development teams within an Agile environment. Advanced Python development skills, ideally with FastAPI or similar frameworks, and a strong understanding of relational databases, schema design, and SQL. Experience designing scalable systems and working with cloud infrastructure ...

users Strong understanding of product development and navigating large codebases Located in London/Paris and open to working in office Tech Stack: Python FastAPI Typescript + React Open source LLMs On premise deployments Benefits Currently Offered (likely to improve as company grows): 100% coverage for travel expenses Childcare support ...

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 ...

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 ...

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 ...

join on an initial 12-month contract basis. What you'll need to succeed : Extensive hands-on Python Development experience building REST APIs with FastAPI or similar. Strong quantitative background - must have. Strong experience with Pandas, NumPy, and/or SciPy. Good experience with time series or market data models. ...

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 ...

time, and a genuine investment in making developers better at their craft. The ideal candidate will have: Strong commercial Python development experience Experience with FastAPI or similar frameworks (Django, Flask) Experience with using Claude Code or Cursor Experience with data warehousing (Snowflake) Nice to haves: Experience with asyncio or modern ...

from Principal Engineers and senior technical leaders The ideal Software Engineer will have commercial experience with Python and frameworks such as Django, Flask or FastAPI, alongside a genuine interest in building high-quality products and developing their technical craft. Software Engineer | Python Engineer | Backend Engineer | Software Engineer ...

include Python and SQL, LLM development techniques such as prompt engineering, fine-tuning and RAG, frameworks including LangChain and LangGraph, agent frameworks, vector databases, FastAPI, and cloud platforms such as AWS, Azure, GCP or Databricks. Familiarity with CI/CD, MLOps and LLMOps practices is also expected. Strong communication skills ...

include Python and SQL, LLM development techniques such as prompt engineering, fine-tuning and RAG, frameworks including LangChain and LangGraph, agent frameworks, vector databases, FastAPI, and cloud platforms such as AWS, Azure, GCP or Databricks. Familiarity with CI/CD, MLOps and LLMOps practices is also expected. Strong communication skills ...