1 to 25 of 29 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 ...

years of commercial software development experience. Proven success in high-performing engineering teams within fast-paced environments. Deep expertise in: Python (Django, Flask, or FastAPI) PostgreSQL (design, optimisation, maintenance) Containerisation (Docker/Kubernetes) Event-driven architecture (Kafka/RabbitMQ) Desirable experience includes: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Terraform ...

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 ...

/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 ...

driven workflows Setting engineering standards and best practices from day one What We’re Looking For 4+ years backend engineering experience Strong Python experience (FastAPI, Flask, or Django) Previous experience in startups or high-growth environments Comfort working with ambiguity, speed, and limited structure Strong database knowledge (PostgreSQL, Redis) 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 ...

graduates or more senior engineers Infrastructure or deployment experience (AWS, Terraform) is a bonus Happy working onsite five days per week Tech stack Python, FastAPI React, TypeScript Postgres AWS, Terraform Compensation & details up to £185k base + equity (flexible for exceptional profiles) Visa sponsorship available Standard pension Five meals ...

backend services, AI infrastructure, and delivery at scale. What you will do Build and deploy backend services and APIs, Python preferred using Django or FastAPI Productionise AI features including RAG, agent orchestration, and evals Create data pipelines for training, evaluation, and continuous improvement Ensure performance, reliability, and security across ...

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: £50,000 - £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 ...

robust model evaluation tooling. What you will be doing: Design, implement, and operate resilient backend platforms and APIs (ideally using Python with Django or FastAPI), working in close partnership with founders, product, growth, design, and engineering teams to ship impactful functionality, deliver production-grade AI capabilities such as RAG pipelines ...

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 ...

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 ...

You’ll join a team dedicated to pushing the boundaries of what’s possible in the trading world, using innovation to drive real results. Python API Engineer – London What you will do Maintain and develop ...

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 ...