26 to 45 of 45 Python Developer Jobs in London

Senior Python Developer (PYTHON/AWS/REACT)

Hiring Organisation
Tech 4
Location
East London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
SeniorPythonDeveloper(PYTHON/AWS/REACT)-healthtech - tech for good - make a positive impact on the world. HighlysuccessfulandfastgrowingorganisationhasanexcitingopportunityforaSeniorPythonDeveloper(PYTHON/AWS/REACT. Theyarelookingforatalentedindividualwhowilldesign,implement,andmaintaintheirpublishingsoftware,systems, andcustomer-facingdigitalproducts. Requirements Designandimplementsystemsandsoftwaretomeetrequirementsusingappropriatetoolsandmethods. Promotethecreationofhigh-qualitycodebycommitmenttopracticessuchastest-drivendevelopment,pairprogrammingandcodereview. Beresponsibleforthetechnicaldevelopmentofallstagesofsoftwarecreation,includingtesting;ensurethatimplementationmeetssecurity,performance,andsafetyrequirements. Suggestimprovementstothecodebase,developmentprocesses,toolingandworkingpractices.Encourageinnovationbyidentifying,evaluatingandadoptionofemergingtechnologies. Assistwiththedesign,implementation,andtestingofAPIsthatadheretotheOpenAPIspecification Knowledge ...

Python Developer Backend (AI) - remote

Hiring Organisation
Initialize Ltd
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 60,000 Annual
Backend Python Developer (AI) - Remote - UK - excellent opportunity to join this innovative and fast-growing AI tech. organisation! Skills/experience 2+ years solid commercial Python coding experience (backend, API development would be great). Good understanding of Docker, Kubernetes, and scalable distributed systems click apply ...

Senior Scientific Fullstack Python Developer

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£1000.0 - £1100.0 per day + Up to £1100pd Umbrella
currently working with a London-based financial services client who are actively seeking a Senior Fullstack Python Developer to work on the development of a next-generation research platform. What you'll need to succeed : Strong Python software engineering experience beyond exploratory scripts Hands-on experience working ...

Python Developer

Hiring Organisation
Thomson Keene
Location
Greater London, England, United Kingdom
seeking an experienced Python Developer to join a high-profile, fully funded two-year initiative. As part of a critical engineering programme, you will support core delivery streams, remove bandwidth constraints, and help drive momentum toward key 2026/2027 milestones. What You'll Do You'll design … environment, working closely with demanding stakeholders to translate complex requirements into robust, scalable solutions. What We're Looking For Essential 5+ years of strong Python development (Java advantageous) Proven experience designing and building complex server-side systems Background in Financial Services — specifically front office derivatives, pre-trade/origination ...

Senior Quant Python Developer

Hiring Organisation
Harrington Starr
Location
London Area, United Kingdom
Senior Python Quant Developer London (Hybrid) The company A growing fintech business building advanced analytics and execution technology for institutional clients across the derivatives space. Their platform is used by leading hedge funds and asset managers to support relative value, volatility, and macro trading strategies. The environment combines … performant screening and trade discovery tools Work closely with traders and quants to turn analytical requirements into production systems Improve observability, deployment processes, and developer experience across the platform What you will need Strong software engineering fundamentals across architecture, design, and quality practices 5+ years’ experience in platform engineering ...

Software Developer (Python) - Up to £140,000 + Bonus + Package

Hiring Organisation
Hunter Bond
Location
London, England, United Kingdom
Role: Software Developer (Python) - Up to £140,000 + Bonus + Package Salary: Up to £140,000 + Bonus + Package Location: London (Hybrid Working) Skills: Python as a main language This firm is an elite tech firm with high standards who have previously set tech world ...

Python Developer

Hiring Organisation
Station
Location
London Area, United Kingdom
Python Engineer (AI/LLM Focus) London (Hybrid) | 🚀 Fintech Scale-Up We’re partnering with a fast-growing fintech company in London that’s redefining how financial data is leveraged through cutting-edge AI. They’re now looking for a Python Engineer with strong experience … product, data, and engineering teams to bring AI-driven features into production. What you’ll be doing: Designing and building scalable backend systems using Python Developing and integrating LLM-powered features into core products Working with modern AI frameworks (e.g. OpenAI, LangChain, Hugging Face) Collaborating with data scientists ...

Python Full-Stack Developer

Hiring Organisation
Crisil
Location
City of London, London, United Kingdom
Python Full Stack Developer Requirements Develop highly scalable applications in Core Python. Hands-on with Python web frameworks such as Django, Flask, or FastAPI. Experience working on SQL with ability to run various data analytics tasks and queries. Exposure to Java script technologies (preferably React) Exposure … Service, Containers etc.). Knowledge on Financial domain and mainly Risk management is highly desirable Qualifications 8+ years of prior experience as a developer in the required technologies CORE TECHNOLOGIES Scripting : Python, SQL, Bash, PySpark Web frameworks: Django, Flask, or FastAPI. Frontend Technologies: ReactJS, Java Script Azure : Azure ...

Software Engineer/Developer (AWS, Python, Terraform)

Hiring Organisation
La Fosse Associates Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 650 Daily
Software Engineer/Developer (AWS, Python, Terraform) Location: UK (Hybrid/Remote - clearance dependent) Security Clearance: SC or DV required Engagement: Contract (Inside IR35) Sector: Public Sector/Defence/National Infrastructure The Role We are working with a secure public-sector programme delivering mission-critical digital services … used at national scale. They are looking for an experienced Software Engineer/Developer with strong cloud-native engineering skills to design, build, and operate modern systems in highly regulated environments. This is a hands-on engineering role - you will be writing production code, working closely with infrastructure ...

Software Developer (Golang/Rust/Python)

Hiring Organisation
Durlston Partners
Location
Greater London, England, United Kingdom
Python/Golang/Rust Developer - Digital Assets arm of Global Fund - Up to £200k base + Bonus One of the leading absolute return/hedge fund managers within finance, currently managing over $40bn, is diversifying further by creating a separate division to focus on managing crypto … learn, we want to hear from you. Note: if you haven't received a reply within 3 days, your application was unfortunately not accepted. Python/Golang/Rust Developer - Digital Assets arm of Global Hedge Fund - Up to £200k base + Bonus ...

Python Developer

Hiring Organisation
trg.recruitment
Location
City of London, London, United Kingdom
Role: Python Software Engineer Location: Remote (anywhere from Europe) Salary: Up to £90k/€100k base + equity We're partnered with a well-funded startup that's building AI agents to automate operations in the consumer goods space. Small team, strong backers, and real traction with customers. … Role As a Python Software Engineer, you'll be designing and building intelligent, autonomous systems that solve real operational problems for growing brands. You'll own solutions end-to-end - from architecture and scoping through to production - working closely with product and engineering leadership. This is a hands ...

Python Developer

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
success is driven by cutting-edge analytics, high-frequency data processing, and a commitment to innovation. We are now looking for a Senior Python Engineer to join our dynamic team in London and drive our next wave of technological advancements. Role Overview: As a Senior Python Engineer … building robust systems that enhance our trading strategies, risk management, and data analysis. You will collaborate closely with quants, data scientists, and traders, providing Python-based solutions that directly impact the profitability of the business. This is an exciting opportunity to work in a fast-paced, high-performance environment ...

Senior Python Quantitative Developer - Central Risk & Backtesting Platform - Quant Hedge Fund

Hiring Organisation
Winston Fox
Location
City of London, London, United Kingdom
Senior Python Quantitative Developer sought by a specialist and multi-award-winning Systematic Hedge Fund in a brand-new Core team designing and implementing a greenfield centralised Python/SQL/Linux/Docker platform for Backtesting, Pricing, Risk and Performance to be used across all Funds … Layer, Central Risk Calculations, and Backtesting Frameworks which will be a key tool for the Investment teams. Essential Skills & Experience: Excellent Quant Development and Python skills, as per 3+ years of professional experience in Financial Markets, ideally in a Systematic Hedge Fund and/or dealing with Futures. Quantitative ...

Python Developer

Hiring Organisation
Vallum Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £525/day
Responsibilities Develop, test, and maintain high-performance backend applications using Python Design and build RESTful APIs using FastAPI Automate deployment, configuration, and infrastructure management using Ansible Collaborate with DevOps teams to implement and maintain CI/CD pipelines Manage cloud-based infrastructure and containerized applications (Docker/Kubernetes) Write ...

Senior SC Cleared Python Developer x 3

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 750 - 800 Daily
currently working with a public sector client who are actively seeking 3 SC Cleared Senior Python Developers with strong Django experience. What you'll need to succeed : Extensive (10 years +) Python Development experience, ideally within the public sector. Active SC clearance is highly desirable, minimum expectation ...

Senior SC Cleared Python Developer x 3

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£750.0 - £800.0 per day + Up to £800pd Umbrella
currently working with a public sector client who are actively seeking 3 SC Cleared Senior Python Developers with strong Django experience. What you'll need to succeed : Extensive (10 years +) Python Development experience, ideally within the public sector. Active SC clearance is highly desirable, minimum expectation ...

Python Developer

Hiring Organisation
numi
Location
City of London, London, United Kingdom
optimize return metrics. Who We're Seeking: We're on the lookout for a seasoned Associate to Mid-level Software Engineer with hands-on Python experience. Familiarity with AWS Serverless and related technologies would be advantageous. Strengths in Pandas, Polars, Pytest, Postgres, and CI/CD is essential. ...

Python Developer

Hiring Organisation
XPERT-CAREER LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£55.00 - £60.00 per hour
limitations, and maintain consistent delivery within a defined multi-year funding framework. The ideal candidate will have over 5 years of strong experience in Python development (Java experience is a plus), with a proven track record of designing and building complex server-side components. Experience within Financial Services ...

Python Developer

Hiring Organisation
XPERT-CAREER LTD
Location
London, UK
Employment Type
Full-time
limitations, and maintain consistent delivery within a defined multi-year funding framework. The ideal candidate will have over 5 years of strong experience in Python development (Java experience is a plus), with a proven track record of designing and building complex server-side components. Experience within Financial Services ...

Fullstack AI Developer (Java/Python) - Investment Bank

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £800 per day
React front ends, and advanced LLM/RAG workflows.What you'll be doing Building and enhancing cloud-native applications using Java and/or Python Developing modern React front-end solutions Designing scalable systems on AWS Delivering AI-powered features using LLMs, semantic search, and RAG architectures Driving engineering … flagship transformation programme What we're looking for 8+ years' software engineering experience Strong hands-on experience with Java and/or Python Proven expertise with AWS cloud technologies Full stack engineering capability, ideally including React Experience building secure, production-grade distributed systems Strong understanding of modern SDLC ...