18 of 18 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 ...

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 ...

/LLMs: OpenAI API, Hugging Face Transformers, LangChain, Langraph, RAG pipelines Data & Analytics: Pandas, NumPy, Spark, Databricks, Hadoop, Vector Databases, Snowflake Model Deployment: MLflow, FastAPI, Flask, Docker, Kubernetes Cloud & Infrastructure: AWS, Azure, GCP CI/CD pipelines (GitLab, Jenkins) Desirable Skills Experience with prompt engineering, fine-tuning LLMs, and building ...

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 ...

uncertainty environments Excellent communication and collaboration skills Demonstrated curiosity and drive to learn through experimentation Preferred: Familiarity with tech stack: Next.js, React, TypeScript, Python, FastAPI, Postgres, Redis Experience with cloud infrastructure (AWS, GCP) Exposure to or experience with foundation models or Generative AI (LLMs, RAG, fine-tuning, agents, evals ...

high-value problem-solving, validating automated outputs, and solving complex integration challenges. Build and own core backend features and critical API integrations (Python, FastAPI, SQL). Design and implement complex data pipelines and workflows using tools like Dagster and Temporal. Validate and harden accelerated workflows, ensuring generated code meets production ...

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 ...

frameworks that actually measure quality and safety, and shipping AI features used by real enterprise customers. You’ll build backend services and APIs (Python, FastAPI/Django), work across infrastructure and deployment pipelines, and ensure everything holds up in production. You won’t be endlessly tuning prompts or churning ...

web3 products Implement REST APIs with Python Integratebackends with web3, blockchains, DAOs, amd smart contracts Requirements Fluency in Python Experience with Python frameworks.(FastAPI, Flask and Django.) Awareness of cloud infrastructure 3+ years professional software engineering experience Benefits Competitive salary Bonus opportunities Flexibleholiday allowance To apply, please select EASY APPLY ...

Salary: £60,000 - £85,000 + 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 ...

product teams Strong ownership mindset and ability to execute independently Based in London and happy working hybrid Tech Stack: Frontend: React, Next.js Backend: Python, FastAPI Data & Infra: SQL, GCP CI/CD, testing, and code review as standard engineering practice Interview Process Introductory conversation Technical discussion/assessment Final interview ...

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. ...

Right Fit If 5+ years building and scaling systems at places that matter Full-stack with serious backend chops: TypeScript/JavaScript, Python, FastAPI, Next.js, PostgreSQL, ClickHouse Ready to ditch colleagues who think in terms of "that's not my job" - that doesn't exist here You care about product ...

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 ...

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 ...

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 ...

someone who enjoys early-phase product building, systems design, and rapid iteration in a regulated-data environment. Key Responsibilities: Build backend services using Python (FastAPI, async frameworks, Pydantic). Develop and maintain event-driven workflows and orchestration logic. Design and implement API integrations with internal and external systems, including … planning, and core technical strategy. Apply best practice for regulated data handling and secure engineering standards. Must-Have Experience: Strong Python engineering experience, including FastAPI, async programming, and Pydantic. Proven experience working in start-ups (seed to early-growth mandatory). Experience working with regulated or sensitive data (healthcare, government ...