126 to 150 of 179 FastAPI Jobs

Software Engineer

Hiring Organisation
Habitat Energy
Location
Oxford, Oxfordshire, United Kingdom
Salary
£ 70 K
support Trading and Operations in live troubleshooting, using the escalation procedure as required.RequirementsPreferred skills and experience:3+ years of Python experienceProficiency with API frameworks (FastAPI, Django, etc.)Experience with modelling databases with Python (ideally SQLAlchemy)Experience developing UIs with moderns frameworks (e.g. Vue)Desire to be part of a fast ...

Staff Private Cloud Engineer

Hiring Organisation
ARM
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
environments. Own and drive IaC (Terraform, Ansible) practices by defining reusable IaC modules and patterns for reliable and repeatable builds. Develop platform services, APIs (FastAPI) and automation using Python. Drive improvements in reliability, scalability and performance. Lead incident response, fixing and root cause analysis. Work across compute, networking and storage ...

Backend Engineer

Hiring Organisation
9fin
Location
London, UK
Employment Type
Full-time
through your software; from persistent storage through to API endpointExperience with Python and its web frameworks (we currently use Flask, and are moving to FastAPI with Typing)Strong experience delivering APIs, Service Oriented ArchitectureGood working knowledge of SQL statements for retrieving dataA good collaborator and communicator with cross functional engineering ...

Senior Backend Engineer

Hiring Organisation
9fin
Location
London, UK
Employment Type
Full-time
through software, from persistent storage to API endpoints, while applying industry best practices for validationExperience with Python and its web frameworks (we currently use FastAPI with strong typing & Pydantic)Strong experience delivering APIs, Service Oriented ArchitectureStrong working knowledge of SQL statements for retrieving dataA good collaborator and communicator with cross ...

Full-stack AI Engineer

Hiring Organisation
ebury
Location
London, UK
Employment Type
Full-time
systems that handle real financial crime investigations at scale. What You'll DoArchitect and build end-to-end features across our React frontend and FastAPI backend, making sound technical decisions that balance speed with maintainabilityDesign AI agent workflows using LangGraph for screening automation, RAG pipelines, and multi-agent orchestrationLead technical … professional software engineering experienceStrong React + TypeScript skills - you can architect complex frontend applications with good state management, performance, and testingStrong Python backend experience - FastAPI, Django, or Flask with async programming, clean architecture, and production-grade codeSystem design skills - you can design scalable, maintainable systems and articulate trade-offs clearlyAPI ...

L1 Software Engineer

Hiring Organisation
Response Informatics
Location
South East, United Kingdom
Employment Type
Contract
Contract Rate
GBP 250 Daily
Required Skills Frontend React.js REST API troubleshooting JavaScript/TypeScript basics Backend Python FastAPI REST APIs Postman/Swagger Cloud AWS (EC2, Lambda, S3, CloudWatch, API Gateway, IAM) Support Incident & ticket management (ServiceNow/Jira) Log analysis and application troubleshooting Qualifications Bachelor's degree in Computer Science, IT, or related ...

Full Stack Developer Python and React

Hiring Organisation
Bath and West Community Energy
Location
Bath, Somerset, United Kingdom
Employment Type
Temporary
Salary
GBP 70,000 Annual
Efficiency Advice Tool (HEEAT), a new platform combining energy modelling, mobile data capture, smart-meter data and applied AI. The technology stack includes Python, FastAPI and PostgreSQL on the backend, with React, Re click apply for full job details ...

L1 Software Engineer

Hiring Organisation
Response Informatics
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £250 per day
Required Skills Frontend React.js REST API troubleshooting JavaScript/TypeScript basics Backend Python FastAPI REST APIs Postman/Swagger Cloud AWS (EC2, Lambda, S3, CloudWatch, API Gateway, IAM) Support Incident & ticket management (ServiceNow/Jira) Log analysis and application troubleshooting Qualifications Bachelor's degree in Computer Science, IT, or related ...

Forward Deployed Engineer FDE Python AWS

Hiring Organisation
Client Server
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
have experience of working directly with clients and taking ownership of client bespoke development work You have strong Python backend development skills ideally including FastAPI You have experience with AWS including Amazon CDK You have a strong understanding of DevOps principles You have full software development lifecycle experience ...

Infrastructure Developer

Hiring Organisation
Ncounter
Location
London, UK
Employment Type
Full-time
cloud Working closely with infrastructure, platform, security and application engineering teams We are particularly interested in engineers with: Strong commercial Python software development experience FastAPI, SQLAlchemy, Pydantic and PostgreSQL exposure Excellent REST API design and systems integration knowledge Experience modelling complex infrastructure or configuration data Knowledge across at least ...

Senior Backend Engineer (Python | AI | 3D Environments | £130,000)

Hiring Organisation
Paradigm Talent
Location
City of London, Greater London, UK
deliver features that delight and scale. You should have 5+ years of experience developing production-grade backend systems and APIs. Strong skills in Python (FastAPI or similar) and modern cloud infrastructure. Deep understanding of system design, scalability, and reliability . A product-oriented mindset — you design with end users ...

Senior Backend Engineer (Python | AI | 3D Environments | £130,000)

Hiring Organisation
Paradigm Talent
Location
Cardiff, United Kingdom
deliver features that delight and scale. You should have 5+ years of experience developing production-grade backend systems and APIs. Strong skills in Python (FastAPI or similar) and modern cloud infrastructure. Deep understanding of system design, scalability, and reliability . A product-oriented mindset — you design with end users ...

AI Engineer

Hiring Organisation
Robert Walters
Location
Bolton, Lancashire, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £95,000 per annum
Bedrock or similar. AI Orchestration: LangGraph, LangChain, Strands Agents, Semantic Kernel, AutoGen or comparable frameworks. Backend Engineering: Strong Python development skills, ideally with FastAPI or similar frameworks. RAG & Knowledge Systems: Vector databases, embeddings, semantic search, document ingestion and retrieval architectures. APIs & Integrations: Experience connecting AI applications to existing enterprise systems ...

Lead Software Developer

Hiring Organisation
ALFA TECHNOLOGY RECRUITMENT LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
obsessed with the customer, which is how we hold 4.9 on both Trustpilot and Google. The stack: TypeScript on the backend, Python and FastAPI for Jay, Next.js up front, AWS underneath, Claude Code woven through how we build. You won't have used all of it, and you'll change ...

Lead Software Developer

Hiring Organisation
ALFA TECHNOLOGY RECRUITMENT LTD
Location
South West London, London, United Kingdom
Employment Type
Permanent
obsessed with the customer, which is how we hold 4.9 on both Trustpilot and Google. The stack: TypeScript on the backend, Python and FastAPI for Jay, Next.js up front, AWS underneath, Claude Code woven through how we build. You won't have used all of it, and you'll change ...

AI Researcher

Hiring Organisation
Thales
Location
Reading, Berkshire, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
analysis using Pandas, NumPy, SQL; familiarity with Spark or similar is a plus. Model optimisation and research-to-prototype deployment fundamentals, including ONNX, TorchScript, FastAPI/gRPC and GPU acceleration, with CUDA basics desirable. Responsible AI and security awareness: explainability, privacy-preserving methods, bias assessment, safety, assurance, adversarial robustness ...

Python Developer (SC Cleared)

Hiring Organisation
AdRoc Group
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP 650 Daily
sector clients. Rate: up to £650 per day (inside IR35) Duration: 6 months Location: UK, remote working Clearance: Active SC (essential) Tech stack : Python, FastAPI, NodeJS, Typescript, React For full details regarding this Senior Python Developer role, please apply here and we'll be in touch ...

AI Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£130,000 - £160,000 per annum
intelligence, classification, extraction, and reasoning. Create evaluation frameworks and observability tooling to monitor AI performance, quality, and cost. Engineer scalable backend services using Python, FastAPI, cloud technologies, and modern software engineering practices. Your Skills & Experience Strong commercial experience developing software and AI applications in Python. Hands-on experience building ...

Technical Lead (Portal & Applications)

Hiring Organisation
Lightfoot
Location
Exeter, Devon, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
reason we’re hiring you is your technical judgement. What’s already decided, and what’s yours The broad direction is agreed: Python/FastAPI for new backend services, React/TypeScript for web, React Native for mobile, AWS (managed and serverless where sensible) and agentic development as a normal ...

Lead Backend Engineer

Hiring Organisation
ALFA TECHNOLOGY RECRUITMENT LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
obsessed with the customer, which is how we hold 4.9 on both Trustpilot and Google. The stack: TypeScript on the backend, Python and FastAPI for Jay, Next.js up front, AWS underneath, Claude Code woven through how we build. You won't have used all of it, and you'll change ...

Python AI developer

Hiring Organisation
Sandhata Technologies Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 Annual
platform adoption. Troubleshoot and optimise performance across distributed systems and cloud services. Mandatory Skills & Experience Strong Python Back End engineering in production systems ( inc FastAPI ). AWS services: EC2, EKS, S3, SQS, Kenesis/Firehose, Bedrock and AgentCore. Working knowledge of GenAI technologies and Large Language Models. Experience evaluating … workflows. Knowledge of authentication, secret management, network boundaries, and model access governance Preferred Skills Kong API Gateway, Kong Mesh, Flux CD. RESTful API development (FastAPI preferred), microservices, Terraform with GitOps workflows. IaC & Terraform experience with GitOps workflows. Prompt redteaming & evaluation tools (like Promptfoo & Arize). Experience with SQL (MySQL, PostgreSQL ...

Senior Python Django Developer

Hiring Organisation
RWS
Location
London, UK
Employment Type
Full-time
Job Purpose About RWSRWS is a content solutions company, powered by technology and human expertise. We grow the value of ideas, data and content by making sure organizations are understood. Everywhere. Our proprietary technology, 45+ ...

DevOps Engineer

Hiring Organisation
Sphere Digital Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£400.00 - £500.00 per day
Knowledge of monitoring, observability, logging and alerting tools Strong cloud security and operational best practice experience Experience supporting and scaling production environments Python and FastAPI exposure beneficial Comfortable working in fast-paced, evolving environments Able to work autonomously and influence technical direction Apply Now You can apply for the DevOps ...

Software Engineer

Hiring Organisation
LANCESOFT LTD
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Python. Proficiency in Linux and shell scripting. Skills in maintaining and improving networks. Experience with cross-platform distributed (RESTful) and concurrent systems. Experience with FastAPI, or similar backend frameworks in Python. Working knowledge of time-synchronization. Desirable: Experience working with hardware multimedia sensors. Working knowledge of audio, image and video ...

Senior Python AI Developer

Hiring Organisation
EMBS Engineering
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 60,000 - 75,000 Annual
Senior Python AI Developer - Generative & Agentic AI Python FastAPI AWS LLMs RAG Agentic AI DevOps Salary: 60,000 - 75,000 Contract rate: c 475 per day Location: London - Hybrid (3 days per week onsite) Employment: Permanent or Contract 2 positions We're recruiting two experienced Senior Python AI Developers … engineers, architects and platform specialists to deliver secure, scalable, production-ready AI applications. The role Designing and developing Python backend services and APIs using FastAPI Building Generative AI, Agentic AI and LLM-powered applications Developing RAG architectures, prompt orchestration and AI evaluation tooling Integrating LLMs with enterprise applications and business ...