22 of 22 FastAPI Jobs in Central London

Senior AI Engineer

Hiring Organisation
Aimtech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
environment. The role is Hybrid and requires onsite attendance in Central London 23 days per week. Technical Skills C#, ASP.NET Core, Entity Framework Python, FastAPI JavaScript, TypeScript React or Angular REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL and vector databases Azure App Services, Azure Functions, API Management Docker ...

Python Technical Lead FinTech

Hiring Organisation
Run-Time Group Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
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 ...

Founding Software Engineer Python - Start-up

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
build software from scratch and iterate quickly You have strong technical skills, primarily with Python You have experience with RESTful APIs (they use FastAPI); TypeScript, React and other web technologies such as HTML5, CSS3 would be of benefit You have experience with LLMs and agentic AI, like to get your ...

Senior Machine Learning Engineer

Location
City Of London, England, United Kingdom
Deployment: Manage deployment topologies across multi-cloud environments and bare-metal local hardware. API Development: Create high-performance, asynchronous REST and WebSocket APIs using FastAPI to serve real-time conversational agents. MLOps & Infrastructure CI/CD Automation: Design automated machine learning pipelines for model testing, versioning, and continuous deployment. Containerization ...

Lead Agentic AI Engineer

Location
City Of London, England, United Kingdom
production‐quality code practices Strong understanding of software engineering principles, architecture patterns, and delivery best practices Experience with API development using frameworks such as FastAPI, Flask, or Django Knowledge of Docker, containerised deployments, CI/CD, and cloud‐native delivery patterns What Will Make You Stand Out Experience building, deploying ...

Developer

Location
City Of London, England, United Kingdom
extending existing models; Bloomberg API integration to Python; data science/statistics, signal research, backtesting or factor modelling; full stack familiarity (Flask, Django, FastAPI); SaaS build/deploy on cloud (Docker, AWS or similar); an understanding of Java; and experience in quantitative finance or with financial market data. Qualifications & Experience ...

Senior Python Developer/ Engineer

Location
City of Westminster, England, United Kingdom
containerized architecture with a NextJS/React client frontend. Design, develop, and maintain scalable RESTful APIs and microservices using Python frameworks such as FastAPI or Flask. Build and support cloud-native solutions leveraging AWS services including Lambda, ECS Fargate, API Gateway, DynamoDB, S3, Secrets Manager, and CloudWatch. Work closely with … delivery. Contribute to documentation, knowledge sharing, and continuous improvement within the engineering team. Requirements: Professional software engineering experience. Strong commercial experience with Python using FastAPI, Flask, or similar backend frameworks. Extensive experience developing RESTful APIs, microservices, and backend services. Strong hands‐on experience with AWS cloud services, including ECS Fargate ...

Senior Threat Modelling & Application Security Engineer

Hiring Organisation
Sanderson Recruitment Plc
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 - 500 Daily
Knowledge of OWASP, CWE, authentication, authorisation, encryption and infrastructure security. Experience with Terraform/CloudFormation, CI/CD and Jira. Strong Python skills, including FastAPI and Pytest. Experience within a regulated environment. Desirable Docker, Kubernetes, Helm, Serverless, GitOps and CDK. Penetration testing exposure. Snowflake, MongoDB, Databricks, GitHub and Terraform Cloud. ...

Core Platform Developer

Location
City Of London, England, United Kingdom
environments. Solid understanding of service architecture, API design, authentication and authorization, logging, monitoring, and error handling. Hands‐on experience with backend frameworks such as FastAPI, Node.js, or similar technologies. Familiarity with cloud-native development, including Docker, Kubernetes, CI/CD pipelines, and cloud infrastructure, preferably AWS. Experience designing systems ...

Senior Data Scientist

Location
City of Westminster, England, United Kingdom
/AI libraries (PyTorch, XGBoost, TensorFlow). Expert proficiency with SQL development, with Google dialects being advantageous. Proficiency with an API web framework (FastAPI, Django, Flask). Robust CI/CD discipline for ML, including GitHub Actions or GitLab CI, and infrastructure as code solutions such as Terraform. Desired Experience ...

Python Developer

Hiring Organisation
TRAKD
Location
City of London, London, United Kingdom
learn In-office role, UK-based Nice to Have React Native/consumer mobile experience Experience in a regulated environment (healthcare, fintech) FastAPI, Postgres, GCP Early-stage startup experience shipping, learning, iterating fast ...

Applied AI Engineer, Markets Operations - Associate

Location
Westminster, West End, United Kingdom
Science, Software Engineering, a related field, or equivalent practical experience Demonstrate strong Python programming skills Design, develop, and integrate RESTful APIs, such as with FastAPI Build and support ETL and data pipeline engineering workflows Apply Infrastructure as Code practices, such as Terraform, and work within CI/CD pipelines Design ...

Lead Software Engineer Python API

Hiring Organisation
Client Server
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Lead Software Engineer/Developer (Python FastAPI Azure Databricks) London/WFH to £110k Are you a backend focused Software Engineer with strong Python skills combined with technical/team leadership experience? You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance ...

Technical Lead

Hiring Organisation
Develop
Location
Central London, London, United Kingdom
Employment Type
Permanent
LLMs, RAG, agents and model APIs. Take AI ideas from rapid prototypes through to reliable production systems. Work across Python, React/TypeScript, Django, FastAPI, PostgreSQL and AWS. Improve architecture, engineering standards and delivery practices. Work closely with product, business and engineering stakeholders to solve complex problems. Mentor and support … engineers through pairing, reviews and technical guidance. Make pragmatic decisions around scalability, security, reliability and maintainability. Technology Python | React | TypeScript | Django | FastAPI | PostgreSQL | AWS | Docker | REST APIs | CI/CD | Git AI experience across LLMs, RAG, agentic workflows, embeddings, prompt design or model evaluation is particularly valuable. What Theyre Looking ...

Engineering Team Lead | Tech | London, UK

Location
City of Westminster, England, United Kingdom
Virtual Personas Delivery of the Product roadmap Managing a team consisting of a range of skillsets and experience Full stack development, across Python/FastAPI services and React/TypeScript front ends Continuously improving the team's processes for iterative development, including embedding automated testing and CI quality gates into … encouraging our developers Conducting regular 121's, setting objectives and assisting with tailored development plans Our engineering environment includes technologies such as Python (FastAPI), LangChain/LangGraph for multi-agent LLM orchestration, React/TypeScript, PostgreSQL, MongoDB, Redis, Azure (App Service, Container Registry, Blob Storage), Docker, GitHub Actions, and modern ...

Senior Data Engineer

Location
City Of London, England, United Kingdom
Senior Data Engineer Certain Advantage are recruiting for a Senior Data Engineer on a contract basis to start in September for 6-12 months, operating inside IR35. 3 days onsite in London is required per ...

Senior Backend Software Engineer Python

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
pipelining platform. As a Senior Backend Software, you'll own the orchestration engine that controls scheduling, execution, state, retries, concurrency and cancellation, using Python, FastAPI and AWS in a high velocity production environment. You'll design for unpredictable workloads, solving challenges around capacity, back pressure and isolation, while building … London office (close to Waterloo) with flexibility to work from home twice a week. About you: You have advanced backend Python coding skills, including FastAPI You have a good understanding of system architecture, design and scalability You have experience of working on distributed systems You're familiar with other technology ...

Senior Developer

Location
City Of London, England, United Kingdom
s. You'll work in a mixed team of engineers from several suppliers, alongside a dedicated AI engineering capability. The platform combines Python/FastAPI services, React and TypeScript interfaces, Camunda workflow orchestration, modular services, data persistence, and integration with existing Defence tasking processes. Despite the AI-enabled focus … experience delivering software in MOD, Defence Intelligence, National Security or comparable secure environments Proven experience leading agile development teams Strong engineering background across Python, FastAPI, REST APIs, React and TypeScript Experience designing and delivering microservice architectures #J-18808-Ljbffr ...

Senior ML & AI Engineer - Personalization, Search & Audio (Hybrid/Remote UK)

Location
City of Westminster, England, United Kingdom
closely with our Lead Data Scientist in developing and maintaining the team’s API service which delivers real-time ML output to Platform Engineering. FastAPI experience would be advantageous in this regard. This role can be hybrid (London) or remote ( but must have UK right to work and be based … infrastructure as code solutions for automating model rollout such as Terraform. It would be beneficial to have: Proficiency with an API web framework e.g. FastAPI, Django, Flask. Familiarity with experimentation and AB testing frameworks and packages. Experience with vector databases or other methodologies that can support larger scale semantic search ...

Machine Learning Scientist III

Location
City of Westminster, England, United Kingdom
At Expedia Group, we help travelers explore the world, one journey at a time. As a global travel company powered by passionate people, trusted partnerships, and leading technology, we connect travelers, partners, and advertisers through ...

Lead Software Engineer Python API

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Lead Software Engineer/Developer (Python FastAPI Azure Databricks) London/WFH to £110k Are you a backend focused Software Engineer with strong Python skills combined with technical/team leadership experience? You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance … loan Employee Assistance Programme Impactful role with great career progression Apply now to find out more about this Lead Software Engineer/Developer (Python FastAPI Azure Databricks) opportunity. ...

Lead Platform Engineer

Location
City of Westminster, England, United Kingdom
Responsible for leading the design and development of our core applications and internal tools, including multiple production UIs built using Python-centric stacks (e.g. FastAPI, Jinja, HTMX, Tailwind). Responsible for making and guiding implementation decisions across backend services, APIs and application architecture. Contribute directly to production code, setting … pragmatic approach to debugging and system design. Comfort working in evolving environments where priorities change and ambiguity exists. Nice to Have Skills Experience with FastAPI or similar Python web frameworks. Experience with infrastructure-as-code and cloud platforms. Familiarity with lightweight frontend approaches (e.g. server-rendered HTML, HTMX, utility-first ...