51 to 75 of 81 FastAPI Jobs in the UK

Senior Software Engineer (Python & Distributed Systems)

Hiring Organisation
LANCESOFT LTD
Location
Ely, England, United Kingdom
networking (IPv4/IPv6, VLANs, routing) and building RESTful/concurrent distributed systems./n - APIs: Practical experience with modern frameworks like FastAPI, Flask, or Django./n - Work Arrangement: 100% onsite in Cambridgeshire across central Cambridge and Bourn Quarter facilities./n/ ...

Machine Learning Engineer

Hiring Organisation
Understanding Recruitment
Location
Stevenage, Hertfordshire, United Kingdom
Salary
£ 60 K
servicesDesigning and scaling cloud infrastructure in AWSImproving CI/CD, infrastructure-as-code and automated deploymentsDeveloping and debugging Python services using tools such as FastAPI and PydanticBuilding production RAG pipelines, including embeddings, indexing, retrieval and rerankingImplementing monitoring, tracing and observability across AI servicesImproving system reliability, performance, compute efficiency and costOwning ...

Backend Engineers

Hiring Organisation
Anson McCade
Location
London, United Kingdom
Salary
£ 70 K
position, provide technical leadership, mentor other engineers and support the development of engineering best practice.Essential Skills & ExperienceStrong backend development experience using Python, with Django, FastAPI or other Python frameworks.Experience designing and building scalable, maintainable backend services.Good understanding of databases, object-oriented design, data structures and distributed systems.Knowledge of SOLID principles ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Senior Python AI Developer

Hiring Organisation
EMBS Engineering
Location
London, United Kingdom
Employment Type
Permanent, Contract
Salary
£60000 - £75000/annum + Benefits
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 ...

Lead SRE - AI

Hiring Organisation
Halliburton
Location
Abingdon, Oxfordshire, United Kingdom
Salary
£ 70 K
product owners to ship AI-first tooling that scales with the platform.Design and build full-stack AI-powered applications using Angular frontends, Python/FastAPI backends, and integrated LLM and agent pipelines. Develop and operationalize LLM-based solutions for SRE use cases, including log analysis, anomaly detection, runbook automation, incident … models into SRE observability tools like New Relic and automation workflows, including monitoring, alerting, and self-healing.Build and maintain RESTful and async APIs using FastAPI for internal SRE tooling and dashboards.Develop Angular dashboards that present AI-generated insights to SRE, account, and sales stakeholder teams.Collaborate with the Cloud Automation team ...

AI Tech Lead Developer

Hiring Organisation
EMBS Engineering
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75000 - £85000/annum + Benefits
Tech Lead Developer - Generative & Agentic AI Python | Java | FastAPI | AWS | LLMs | Agentic AI | Technical Leadership Salary: £75,000 - £85,000 + Benefits Location: London - Hybrid (3 days per week onsite) Employment: Permanent We're recruiting an experienced, hands-on AI Tech Lead Developer to join a technology consultancy delivering enterprise … hands-on Generative AI development expertise and experience leading technical teams. We'd expect experience across a good mix of: Strong Python, Java and FastAPI development experience Generative AI, Agentic AI and Large Language Models RAG architectures, prompt orchestration and LLM integration AWS cloud engineering, particularly Bedrock and AgentCore ...

Senior Software Engineer Python GCP FastAPI

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Senior Software Engineer/Lead Developer (Python GCP FastAPI) London/WFH to £120k Are you a skilled Python Developer with leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Senior Software Engineer your role will blend technical leadership … good knowledge of cloud based services (they use GCP but AWS or Azure experience is fine) You have experience of building APIs, ideally FastAPI experience You have a good knowledge of CI/CD, testing and deployment You have a thorough understanding of Computer Science fundamentals such as OOP, Data ...

Backend Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent
hiring a Backend Engineer to build the platform its product runs on. You'll design multi-tenant data and workflow services in Python and FastAPI and own the integration layer between a Java/Spring core and Python AI services. This is one of nine engineering hires across front … back-end engineering for production SaaS or platform systems. Real multi-tenant or enterprise-system experience covering isolation, permissions and auditability. Strong Python with FastAPI or comparable frameworks, solid SQL/PostgreSQL, and the ability to work at Java/Spring service boundaries. Production AWS experience, plus confidence with ...

Senior Ai Engineer

Hiring Organisation
Typeform
Location
United Kingdom
Salary
£ 70 K
Who we areTypeform is a refreshingly different form builder. We help over 150,000 businesses collect the data they need with forms, surveys, and quizzes that people enjoy. Designed to look striking and feel effortless ...

Python Engineer - Mid and Senior 70-82k

Hiring Organisation
Anson Mccade
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Give technical leadership and mentor developing engineers What you'll need Expert Python: production services delivered end to end, not just years of exposure FastAPI, Django and AWS A solid grasp of databases, OO design, data structures, distributed systems and SOLID principles Analytical, collaborative and a clear communicator Engaging … personable, comfortable giving and taking honest feedback Stack: Python, Django, FastAPI, AWS, PostgreSQL, Elasticsearch, Redis, Kafka, Kubernetes, GitHub What's on offer Competitive salary up to 70k for mid level and up to 82k for senior, plus a performance bonus, 28 days holiday plus bank holidays and your birthday ...

Python Developer

Hiring Organisation
Citigroup
Location
Belfast, Down, United Kingdom
Salary
£ 60 K
front office, Credit Risk Business. The candidate will be a core member of the technology team responsible implementing projects based on Python, FastAPI, MCP, LLM, Java and using latest technologies. Excellent opportunity to immerse in and learn within the Wholesale Credit Risk Division and gain exposure to business and technology … Research and resolve complex issues, escalating as appropriate. 3+ years of hands on experience in building an enterprise scale highly componentized application using Python, FastAPI Hands on development experience in Python Experience working with CI/CD pipelines, Kubernetes and other containerized platforms. Ability to effectively interact, collaborate with development ...