51 to 75 of 169 FastAPI Jobs in London

Data Decisioning Manager

Hiring Organisation
Accenture
Location
London, UK
Employment Type
Full-time
context window managementAgentic AI frameworks — LangChain, LangGraph, AutoGen, or similar; building multi-step autonomous workflowsMachine Learning — model development, training, evaluation, and deploymentAPIs & backend development — FastAPI, REST APIs, microservices architectureVector databases & embeddingsCloud platforms — Azure GCP, or AWS; deploying and managing AI/ML workloads at scaleVersion control & MLOps — Git, CI/ ...

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 Python Engineer – Cloud, APIs & Serverless

Location
Greater London, England, United Kingdom
work with the Lead Engineer in an Agile team to deliver high quality, scalable features. You will develop RESTful APIs and microservices in Python (FastAPI/Flask), using serverless and containerized AWS architecture (Lambda, ECS Fargate, API Gateway). You’ll ensure secure, reliable delivery and collaborate with product ...

Software Engineer III - LLM Suite Engineering - Senior Associate

Location
Greater London, England, United Kingdom
Software Development Life Cycle Preferred Qualifications, Capabilities, and Skills Experience implementing GenAI services leveraging Azure OpenAI models and AWS Bedrock Proficiency in Python (FastAPI) Experience building microservices and APIs Experience with elastic compute, NoSQL databases, and messaging queues Proficiency working with large language models and building agents with LangGraph Experience ...

Senior AI Engineer Manager/Associate Director | Capital Markets

Hiring Organisation
Datatech Analytics
Location
London, UK
Employment Type
Full-time
LangChain, LangGraph, Agent Development Kit or similar agent frameworks·Experience with vector databases such as Pinecone, Chroma or similar·API development experience, ideally with FastAPI or similar frameworks·Knowledge of MLOps, LLMOps, CI/CD or production deployment practices·Experience designing or supporting evaluation frameworks for AI or agentic systems ...

Forward-Deployed Engineer (FDE)

Hiring Organisation
NTT
Location
London, UK
Employment Type
Full-time
GenAI, LLM, RAG, agentic AI, data science, or automation solutions. Hands-on experience with programming languages and frameworks such as Python, JavaScript/TypeScript, FastAPI, Flask, React, LangChain, LlamaIndex, PyTorch, TensorFlow, or similar technologies. Experience integrating APIs, data sources, model providers, workflow tools, and cloud services into working demos ...

Senior Consultant/Manager, AI/ML Engineer

Hiring Organisation
Baringa
Location
London, UK
Employment Type
Full-time
frameworks (e.g. scikit-learn, PyTorch, XGBoost) and cloud-native ML services (SageMaker, Azure ML, Vertex AI). Software Engineering: Production-grade Python services (FastAPI, AWS Lambda, event-driven patterns) and front-end development with React/Next.js, Material UI and SWR. Cloud architecture design capability across major providers; rounded understanding ...

Forward Deployed Software Engineer

Location
Greater London, England, United Kingdom
ideas and ship them directly to the customer. Rapidly iterate on this experience through constant user feedback. Backend development: Build and maintain RESTful APIs (FastAPI) and microservices in Python to serve Large Physics Models to the end users. Working with other software engineers in our platform team, deploy these applications ...

Back End Engineer - Repeats

Hiring Organisation
iwoca
Location
London, UK
Employment Type
Full-time
research so you can focus on the hard parts: complex architecture, rigour and high-stakes decisions. Bonus: Familiarity with Python web frameworks (Django, FastAPI).Exposure to Docker, AWS or Kubernetes at any level. Any exposure to data tooling such as Snowflake or Looker. A strong numerical or technical background, with ...

Senior Manager, AI/ML Engineer

Hiring Organisation
Baringa
Location
London, UK
Employment Type
Full-time
frameworks (e.g. scikit-learn, PyTorch, XGBoost) and cloud-native ML services (SageMaker, Azure ML, Vertex AI). Software Engineering: Production-grade Python services (FastAPI, AWS Lambda, event-driven patterns) and front-end development with React/Next.js, Material UI and SWR. Cloud architecture design capability across major providers; rounded understanding ...

Senior Full Stack Engineer - AI for Finance (London)

Location
Greater London, England, United Kingdom
financial services. You will own core product development, collaborate with founders, and drive architecture decisions. The role requires expertise in React, Next.js, Python (FastAPI/Django), PostgreSQL, Docker and Kubernetes, with equity and a competitive salary in a fast-growing startup. #J-18808-Ljbffr ...

Agentic AI Engineer for Production-Ready Pipelines

Location
Greater London, England, United Kingdom
учётом масштабируемости. Вы будете работать с Data Science, DevOps и инфраструктурой, наставлять коллег, развивать практики тестирования, мониторинга и релизов. Требуется глубокое владение Python, FastAPI, AWS, Docker, GitHub и CI/CD; приветствуется опыт агентных систем и GenAI. #J-18808-Ljbffr ...

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. ...

Senior Threat Modelling & Application Security Engineer

Hiring Organisation
Sanderson
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£450.00 - £500.00 per day
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 ...

AI Technical Lead - Contract

Hiring Organisation
167 Solutions Ltd
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 - £700.00 per day
Multi-agent systems Voice AI Speech-to-text/text-to-speech ElevenLabs AWS Bedrock Amazon SageMaker Google Cloud Platform (GCP) Vertex AI Python FastAPI/APIs LangChain/LangGraph Vector databases Embeddings and semantic search Hugging Face/open-source AI models Prompt engineering Model evaluation and optimisation MLOps ...

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 ...

Senior Front End Leaning FullStack

Location
Greater London, England, United Kingdom
London, only 1 day per week in the office £80,000-£120,000 + Equity AI-native product company TypeScript | Vue/React | Python | FastAPI | Postgres I'm working with one of the most exciting early-stage AI companies I've come across, and they're looking for a Senior ...

Data Engineer

Location
Greater London, England, United Kingdom
automation tasks A background in working with storage solutions such as PostgreSQL, MySQL, and BigQuery Experience in API development using tools such as FastAPI or Flask , enabling data access and integration across systems Solid knowledge of cloud platforms (GCP and/or AWS), with the ability to design and deploy ...

Applied AI Engineer

Hiring Organisation
Castleton Commodities International
Location
London, UK
Employment Type
Full-time
loop review. Strong programming and data skills, including Python, SQL, and tools/libraries used in agentic development like langgraph, langchain, Pydantic models, NumPy, FastAPI/MCP, etc. Ability to work with APIs, JSON, MCPs, Git or version-controlled artifacts, and lightweight automation or prototyping workflows. Excellent written and verbal ...

Senior Backend Engineer | AI Platform

Location
Greater London, England, United Kingdom
teams to understand their needs and provide scalable platform solutions. Continuously improve developer experience and platform adoption across the organization. Tech Stack: Backend Python FastAPI Agent Development Kit (ADK) Datastores PostgreSQL BigQuery Firestore Infrastructure Google Cloud Platform (GCP) RabbitMQ Terraform Monitoring & Observability Grafana Prometheus Langfuse incident.io Sentry What to Expect ...

Senior Forward Deployed AI engineer

Location
Greater London, England, United Kingdom
mindset. To be successful as a Senior Forward Deployed AI engineer, you should have experience with: Ample Python systems engineering with experience building APIs (FastAPI/Flask) and deploying on AWS (ECS/EKS, Lambda, Bedrock, Docker). Notable understanding and experience building generative AI applications (LangChain, AutoGen, CrewAI ...

Lead Software Engineer, Team Lead

Hiring Organisation
Marsh & McLennan Companies
Location
London, UK
Employment Type
Full-time
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 ...

Senior Data Engineer

Location
Greater London, England, United Kingdom
system What you'll have Strong aptitude with SQL, Python and AWS data stack essential; Experience building efficient, scalable databases and APIs (e.g. Django, FastAPI) a huge plus; Experience in Kubernetes, Docker, Spark and related monitoring tools (e.g. DataDog, Grafana, Prometheus) for DataOps a huge plus; Experience with Airflow ...

Senior AI Engineer - Perm - London

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
Machine Learning, NLP or AI platforms. Experience productionising machine learning models at scale. Strong experience designing RESTful APIs and microservices using frameworks such as FastAPI, Flask or Django. Experience working with SQL and relational databases, including performance optimisation. Experience designing cloud-native solutions within AWS and/or Azure. Strong … automated testing and Infrastructure as Code. Excellent communication and stakeholder management skills. A passion for mentoring and developing other engineers. Technology Stack Python SQL FastAPI PyTorch Docker Kubernetes AWS Azure Git CI/CD Knowledge Graphs Large Language Models (LLMs) Amazon Bedrock Azure AI Foundry Machine Learning Natural Language Processing ...