22 of 22 FastAPI Jobs in the South East

Senior Developer

Hiring Organisation
Reed.co.uk
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 per annum
Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms ...

Senior Python Engineer

Hiring Organisation
Method Resourcing
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £80,000 per annum
What We're Looking For Essential Professional Python development experience Strong understanding of software design patterns and engineering principles Experience with frameworks such as FastAPI, Django, or Flask Solid knowledge of RESTful APIs and distributed systems Experience working with relational and NoSQL databases Strong testing experience (PyTest, unit, integration ...

GenAI Full Stack Engineer - Managing Consultant - Digital Excellence

Hiring Organisation
Capgemini
Location
Hampshire, United Kingdom
Employment Type
Full Time
Security Check) Clearance or be eligible for such level of clearance. Technical Expertise 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 ...

Software Engineer / Developer (All Levels) - UK Wide

Hiring Organisation
describe.me
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £140,000 per annum
Python, Java, Kotlin, Go, C#/.NET, TypeScript/Node, Ruby, PHP, Scala, Rust Hands-on experience with modern frameworks (Spring, .NET, Django, FastAPI, Rails, Express/NestJS, Laravel, React, Vue, Next.js, Angular or equivalent) Solid grounding in REST and/or GraphQL API design Working knowledge of relational ...

AI Engineer

Hiring Organisation
167 Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £130,000 per annum
training, testing and evaluation Prompt Engineering and AI workflow optimisation Programming & Frameworks Strong Python development skills PyTorch TensorFlow Scikit-Learn LangChain LangGraph Hugging Face FastAPI REST APIs Data Technologies SQL NoSQL Databases Data Modelling ETL Development Data Pipeline Engineering Vector Databases such as Pinecone, Weaviate or ChromaDB Cloud & DevOps Experience ...

Senior Backend Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
environment, this role offers both autonomy and real impact. Requirements Backend Architecture & APIs (Primary Focus) Design and evolve scalable backend services in Python using FastAPI for high-availability, high-throughput workloads. Build well-versioned RESTful APIs aligned to OpenAPI/Swagger, with strong conventions for consistency, idempotency, and backward compatibility. ...

Full Stack Software Developer

Hiring Organisation
Reed
Location
Guildford, Surrey, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £40,000 per annum, Inc benefits
skills. Proficiency in modern frontend technologies (HTML, CSS, Tailwind, JavaScript/TypeScript, Vue.js React or equivalent) Experience in backend technologies (Laravel/PHP, Python FastAPI Experience using AWS including - ECS, IAM, RDS, CloudWatch, and terraform or infrastructure as code Experience with version control (Git), and CI/CD pipelines Detail ...

Developer - Exposure Analytics

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
portfolio analytics capability Improve data quality, reconciliation processes and reporting frameworks Skills & Experience 3–5 years' software development experience Strong Python development skills with FastAPI, Flask or Django Experience building full-stack applications using React, JavaScript/TypeScript and Node.js Knowledge of GitHub, CI/CD, automated testing and Agile ...

Data Engineer

Hiring Organisation
iDPP
Location
Hampshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
capabilities , including: Large Language Models (LLMs) Retrieval-Augmented Generation (RAG) AI agents and orchestration workflows Designing and maintaining backend services and APIs (primarily Python, FastAPI/Flask) Building and scaling data pipelines and search systems using: ElasticSearch, Weaviate, Pinecone, and other vector databases Engineering secure, containerised architectures using Docker ...

Python Developer

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
developing automation systems for trade processing workflows, creating custom data visualization tools, and architecting web applications using Flask/Django/FastAPI stacks. You'll have autonomy to drive technical decisions while collaborating with C-suite stakeholders to solve complex financial data challenges. We need someone who understands ...

R&D Software Engineer

Hiring Organisation
FBI &TMT
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
£50,000
tools, LLMs, speech services, RAG systems, or AI APIs Experience with Unreal Engine, Unity, or other real-time 3D development environments Familiarity with Docker, FastAPI, REST APIs, Git, and deployment workflows Experience with simulation, defence, XR, training systems, or serious games Familiarity with cloud services or local/offline model ...

Technical Lead - Product

Hiring Organisation
Eden James Consulting Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
delivering end-to-end software products. Proven ability to lead or mentor development teams within an Agile environment. Advanced Python development skills, ideally with FastAPI or similar frameworks, and a strong understanding of relational databases, schema design, and SQL. Experience designing scalable systems and working with cloud infrastructure ...

SENIOR SOFTWARE DEVELOPER – EDINBURGH OR LONDON

Hiring Organisation
Max Fordham LLP
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £60,000 per annum
Fordham use. The successful candidate will be expected to work with the following core technologies: Programming: Python, JavaScript, TypeScript, SQL, C#, C++ Frameworks & Tools: FastAPI, Jupyter, JupyterHub, Voila, Power BI, GitHub, Vue, Nuxt AEC Platforms & Standards: Revit, Revit API, pyRevit, Rhino, Grasshopper, IES VE (and it’s Python ...

Senior Python Quant Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£800 - £900 per day
join on an initial 12-month contract basis. What you'll need to succeed : Extensive hands-on Python Development experience building REST APIs with FastAPI or similar. Strong quantitative background - must have. Strong experience with Pandas, NumPy, and/or SciPy. Good experience with time series or market data models. ...

Senior Data Scientist

Hiring Organisation
Sirius Analysis Limited
Location
Portsmouth, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
benefits, pension (7% contribution), 25 days holiday & life insurance
translating customer requirements intotechnical requirements and development objectives. Pythonexpertisecovering standard data sciencelibraries (NumPy, pandas, matplotlib, Scikit-learn,PyTorch, etc),web frameworks (Flask or FastAPI) and visualisation(Dash,Plotly,&Streamlit). Proficient inSQL. Working with unstructured data Building customer and stakeholder relationships. Supporting and leading authoring of technical reports and presenting ...

Technical Lead (Python/React)

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
offering the opportunity to influence both product direction and engineering culture. Key Requirements Strong software engineering background with leadership experience. Advanced Python development skills (FastAPI desirable). Experience with SQL, cloud infrastructure, CI/CD, and scalable systems. Exposure to React/TypeScript is advantageous. Experience within SaaS, cybersecurity ...

AI Developer

Hiring Organisation
Reed
Location
Reading, Berkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £70,000 per annum, Inc benefits
AI Developer Job Type: Full-Time, Permanent Location: Reading, hybrid working arrangements, 3 days a week onsite. Hours: Monday to Friday, 37.5 hours per week Salary: Competitive, dependent on experience An excellent new opportunity for ...

Senior Full Stack Engineer

Hiring Organisation
Searchability
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £100,000 per annum
Python back end Small, fast-moving team with high ownership and real impact Stack flexible, as long as you are happy in Python, FastAPI and React Salary up to £100,000 depending on experience Ideally a genuine sports fan ABOUT THE CLIENT We are supporting a fast growing company building … line to product decisions. KEY RESPONSIBILITIES Build intuitive, performant web interfaces using React, Next.js and TypeScript Design and maintain sophisticated APIs using Python and FastAPI Work with real time data streaming, including SSE and WebSockets Translate complex sports data and logic into clean, efficient code Own the front end lifecycle ...

Technical Lead

Hiring Organisation
InvitISE Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
those in a tech lead or staff engineer role - Python and TypeScript/Node, with solid React/Next.js and NestJS/FastAPI experience - PostgreSQL, including schema design, query performance, ETL/ELT, and analytical workloads at scale - LLM/AI features shipped to production users, covering evals, guardrails, prompt … Tech Lead, Technical Lead, Staff Engineer, Principal Engineer, Private Credit, Private Markets, Capital Markets, AI Platform, Analytics Platform, Python, TypeScript, Node.js, React, Next.js, NestJS, FastAPI, PostgreSQL, pgvector, LangChain, LangGraph, LiteLLM, AWS, LLM, Fintech, Greenfield, Remote, Hybrid/Remote, Contract ...

Senior Backend Engineer

Hiring Organisation
Searchability
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £100,000 per annum
Backend Engineer (Python/FastAPI) Fast-Growing Sports AI Company KEY POINTS Hybrid role based in London Build real time, data rich applications for the sports industry Small, fast-moving team with high ownership and real impact Work at the forefront of AI and LLMs applied to sport Stack flexible … long as you are happy in Python, FastAPI and modern web tooling Salary up to £100,000 depending on experience Ideally a genuine sports fan ABOUT THE CLIENT We are supporting a fast-growing company building cutting edge AI solutions for the sports industry. The business is small, ambitious ...

Senior ML Platform Engineer - Robotics

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £750 per day
deployment. The Role You will: * Own and extend internal web applications used for robot data collection, review, QA, and dataset publishing* Build and maintain FastAPI backends, vanilla JavaScript frontends, CLI tooling, and supporting services* Improve recording workflows, state machines, config validation, batch processing, stale-data recovery, and archival processes* Containerise … have: * Senior-level software engineering experience, ideally 5+ years* Strong production Python experience* Experience with typing, async/await, threading, multiprocessing, and concurrent workloads* FastAPI or another async Python web framework* Vanilla JavaScript, including DOM manipulation, fetch, and WebSockets* Experience building internal tooling, operator tooling, platform tooling, or workflow orchestration ...

Python Backend Engineer

Hiring Organisation
Daniel James Resourcing Ltd
Location
St. Albans, Hertfordshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £550/ day Outside IR35
working on systems that continuously ingest and process large volumes of operational and telemetry-style data from connected platforms and devices. Tech environment: Python FastAPI Azure Functions Azure Service Bus/Event Hub Kubernetes/AKS Docker Cosmos DB Distributed messaging systems Event-driven microservices Real-time processing pipelines What … resilience, retries, observability, scaling, and failure handling Engineers who still code heavily day-to-day Highly desirable: IoT, telemetry, or time-series style systems FastAPI Kafka/Service Bus/RabbitMQ/Event Hub Kubernetes Azure-native backend engineering This is a fast-moving contract process with a single technical ...