Lead Software Engineer Python Java Jobs in London, UK

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

Senior Python Web Scraping Architect — Remote

Cyber Security training courses is looking for a Senior Python Scraping Engineer to design and operate large-scale scraping systems, focusing on Google scraping. Candidates need expert Python skills and direct experience with Google scraping at scale. Responsibilities include building robust scrapers, adapting t ...

Senior Python Developer Trading & Risk Platforms

Hexaware Technologies is seeking a Python Developer with 6–10 years of experience in investment banking to build backend applications and data processing logic. This role involves developing Python-based solutions for trading and risk management, collaborating with financial professionals, and data pipeline auto ...

Senior Python Developer: Trading & Risk Systems

N Consulting Limited is seeking a Sr Python Developer for a 6-month contract in London. The ideal candidate will have strong experience in trading and risk management systems, with 6-10 years in Python development. Responsibilities include building backend applications, data processing pipelines, and collaborati ...

Credit Scorecard Data Scientist (Python/R)

Quant Capital is looking for a Data Scientist to work on credit and scorecard modeling in London. This full-time role involves creating models used in production, with a strong emphasis on SQL and programming in Python or R. The ideal candidate will thrive in a relaxed and open work environment, akin t ...

Full Stack Developer Roles (Python/React)

Full Stack Desk Developer (Python/React) Employment: Full‑time We are hiring for a Full Stack Developer, working closely with a wide range of business lines. You will be given the opportunity to work with technical and non‑technical experts and develop innovative solutions, and full‑stack ...

Senior Structured Products Quant – Python/C++

Stars Arena is looking for a Structured Products Quant in London, specializing in Quantitative Analysis. The role demands an MSc or PhD in a STEM subject and at least 6 years of experience in Quantitative Analysis, with additional knowledge in refactoring Fixed Income Data. This full-time position is p ...

Mid Senior Fullstack Developer (Python/React)

Mid-Senior Fullstack Developer (Python/React) Up to £80k plus equity 1 day p/week in London Fullstack Developer (Python/React) – Would you like to work for a fast-growing VC-backed energy technology startup who are currently looking for a Full-Stack Developer to join its expanding product ...

Senior Python Developer Trading & FIX (Hybrid)

A leading technology services company is looking for a skilled Python Developer based in Greater London. The ideal candidate will have over 6 years of experience in the trading domain and expertise in the FIX protocol. Responsibilities include developing trading applications, implementing FIX protocol solutions, ...

Python Developer: AI & Automation | Hybrid London

A leading legal consulting firm in London seeks a Python Developer specializing in AI and automation. The role requires extensive experience in Python and API development, as well as familiarity with Azure technologies. Candidates should be skilled in designing automation workflows and integrating AI solutions i ...

Junior Python Model Developer – Insurance Tech

A technology and insurance firm in London is seeking a Junior Model Developer to work with the hx Renew modelling platform. The role involves building models in Python, collaborating with teams, and delivering innovative solutions in a supportive environment. Candidates should have production-grade Python experi ...

Quantitative Developer: Python, Data Pipelines Dashboards

A global trading and investment firm in London is seeking a Quantitative Developer to join their Quantitative Development & Data team. The role involves building and maintaining quantitative libraries in Python, developing web services, and promoting best coding practices. Ideal candidates will have 3-5 years of ...

Senior Python Developer — Sustainable Indices (Remote)

A leading financial services company in Greater London seeks a knowledgeable Quantitative Developer to join their Sustainable Index Research and Design team. The role focuses on developing Python applications to enhance investment analytics and automate reporting tools. Candidates should have strong Python skill ...

Risk Engine Developer Python, Data & Cloud

A financial services company in Greater London is seeking a Software Developer to join its Risk Engines team. The role entails enhancing key Risk Engines and integrating applications while utilizing full-stack Python development and cloud technologies such as AWS. Candidates should possess strong skills in numer ...

Asset Data Specialist Python & Excel (London)

Stars Arena is seeking an Asset Data Coordinator in London, UK, offering up to £19 per hour. The ideal candidate will possess advanced Excel skills, preferably with knowledge in VBA or Python. Experience in work planning, asset management, and database management is beneficial. This full-time position does not p ...

Senior Risk Systems Architect (C++/Python)

Vitol Group is seeking a skilled member for the Risk Systems team to develop key components of a new Risk & PnL engine. The role requires over 8 years’ experience in C++ and familiarity with Python, as well as a solid understanding of financial and commodities markets. Successful candidates will demons ...

Python Developer Hybrid Banking & Hedge Fund

Stars Arena is seeking a Python Developer to join their team in London. The ideal candidate will have 1-4 years of experience and a desire to transition into the banking sector or work for a high-performing hedge fund. This full-time role offers competitive compensation and opportunities for hybrid wor ...

Senior Quantitative Analyst Python Modeling & Risk

LegalAndGeneral in Greater London is seeking a Senior Quantitative Analyst to join their Investments Quantitative team. In this role, you will develop and enhance financial models using Python, lead various projects, and support model governance. The ideal candidate has extensive programming experience in Python ...

Pricing Actuary – Global Consultancy (SQL/Python)

Stars Arena is looking for a Pricing Actuary based in London, United Kingdom. The successful candidate will be familiar with Python and SQL, ideally from a reserving background with some pricing experience. This full-time role offers competitive benefits and perks, though visa sponsorship is not provided. If you ...

Python Quant Developer for Systematic Trading

Durlston Partners LLP is seeking a Python Quantitative Developer to join their successful Systematic Hedge Fund based in Central London. This role involves implementing and optimizing trading algorithms and collaborating with PM Teams and researchers. With a flat, transparent structure, the successful ...

GenAI Data Specialist (Python AI Prototyping)

LA International Computer Consultants Ltd is looking for a Data Specialist (IT) based in London. The role involves building and deploying Python-based AI applications and designing advanced experiments using cutting-edge techniques, particularly in GenAI. The position offers competitive compensation and standard ...

Senior Python Developer in London GroupM

Qualifications Proven experience and a passion for developing and operating data-oriented solutions Experience in AdTech technology highly desired Tools and Technologies The ideal candidate should have experience with the following tools and technologies: ...

Senior Python Developer – eTrading & FIX Connectivity

DXC Luxoft is partnering with a major commodity trader to build out their eTrading capability . Our client plans to trade against a bespoke risk‑neutral model that identifies key risk factors within specific portfolios. We are seeking a Python specialist with expertise in eTrading ...

Cloud Network Automation Architect | Orchestration & Python

Barclays is seeking a Solution Architect - Network Automation based in London to drive the evolution of their digital landscape. As part of the Automation & Tools Engineering team, you will design and implement solutions that leverage technology for enhanced customer experiences. The role requires strong experti ...

Full Stack Desk Developer (Python/React)

Job Description We are hiring for a Full Stack Developer, working closely with a wide range of business lines. You will be given the opportunity to work with technical and non‑technical experts and develop innovative solutions, and full‑stack applications used globally across a wide range of comm ...

Senior Credit Quantitative Architect (C++, Python)

Santander Corporate & Investment Banking is seeking a Quantitative Analyst in London to develop pricing and risk models. This role involves enhancing trading systems and working closely with traders. Candidates should have extensive experience in quantitative roles with strong programming skills in C++ and Pytho ...

Senior Threat Hunter Remote (Python, Jupyter)

UST is looking for a Senior Threat Hunter to join their team in London (remote work available). The ideal candidate will have extensive experience in Threat Hunting, Detection Engineering, and Incident Response, with a strong understanding of enemy tactics, techniques, and procedures. Key responsibilities includ ...

Senior Python Developer in London LinuxRecruit

Senior Python Developer London, United Kingdom Posted 10 months ago Disrupt and innovate within the telecommunications market. You’ll come in and drive the team forward with your technical prowess with Python . When it comes to frameworks, you’re agnostic and are capable of ...

Python / React Developer Power Trading London

We are recruiting a Python Desk Developer for a major energy trader (£400bn T/O). The role is focused on the Power business and will involve working closely with Traders, Risk Managers and Software Engineers. The brief is to help transform the existing applications landscape and deliver sol ...

Full Stack Desk Developer (Python/React)

Full Stack Desk Developer (Python/React) Employment: Full‑time We are hiring for a Full Stack Developer, working closely with a wide range of business lines. You will be given the opportunity to work with technical and non‑technical experts and develop innovative solutions, and full‑stack ...

Senior Python Developer — Trading & Risk Platforms

VBeyond Corporation is seeking a Senior Python Developer to work on backend applications for trading and risk management systems in the Greater London area. The role involves developing Python applications, building data processing pipelines, and collaborating with financial teams to meet business needs. The ide ...

Facial Rigging TD Intern – Python & Maya

Stars Arena is seeking an Intern for Facial Rigging to join their team in London, United Kingdom. This role requires a passion for creating believable CG characters with a focus on detail. Applicants should have experience in Python scripting and possess strong analytical and artistic skills. The position offers ...

Python Quant Developer for Systematic Trading

Durlston Partners LLP is seeking a Python Quantitative Developer to join their successful Systematic Hedge Fund based in Central London. This role involves implementing and optimizing trading algorithms and collaborating with PM Teams and researchers. With a flat, transparent structure, the successful ...

Credit Scorecard Data Scientist (Python/R)

Quant Capital is looking for a Data Scientist to work on credit and scorecard modeling in London. This full-time role involves creating models used in production, with a strong emphasis on SQL and programming in Python or R. The ideal candidate will thrive in a relaxed and open work environment, akin t ...

Junior Python Model Developer – Insurance Tech

A technology and insurance firm in London is seeking a Junior Model Developer to work with the hx Renew modelling platform. The role involves building models in Python, collaborating with teams, and delivering innovative solutions in a supportive environment. Candidates should have production-grade Python experi ...

Python Quantitative Developer (Credit & Capital Management)

We are seeking a Python Quant Developer to support initiatives across Credit and Capital Management. The role focuses on building and enhancing analytics and tools used for risk measurement, capital calculations, and credit-related workflows within a quantitative environment. You will < ...

GenAI Data Specialist (Python AI Prototyping)

LA International Computer Consultants Ltd is looking for a Data Specialist (IT) based in London. The role involves building and deploying Python-based AI applications and designing advanced experiments using cutting-edge techniques, particularly in GenAI. The position offers competitive compensation and standard ...

Quantitative Developer, Python Trading Teams EMEA

Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high-performance platform and independent trading teams. We have a 25+ year track record of innovation and a reputation for discovering unique market opportunities. Tower is home to some ...

Quantitative Developer: Python, Data Pipelines Dashboards

A global trading and investment firm in London is seeking a Quantitative Developer to join their Quantitative Development & Data team. The role involves building and maintaining quantitative libraries in Python, developing web services, and promoting best coding practices. Ideal candidates will have 3-5 years of ...

Senior Python Developer — Sustainable Indices (Remote)

A leading financial services company in Greater London seeks a knowledgeable Quantitative Developer to join their Sustainable Index Research and Design team. The role focuses on developing Python applications to enhance investment analytics and automate reporting tools. Candidates should have strong Python skill ...

Python Developer: AI & Automation | Hybrid London

A leading legal consulting firm in London seeks a Python Developer specializing in AI and automation. The role requires extensive experience in Python and API development, as well as familiarity with Azure technologies. Candidates should be skilled in designing automation workflows and integrating AI solutions i ...

Python Developer Scale FinTech Data Platform

A leading tech house in finance is looking for a Python Developer with outstanding technical skills to join their team in London. You will work on innovative software and build scalable data platforms, collaborating with top technologists. The ideal candidate has strong experience with Python and SQL, enjoys wor ...

Full Stack Developer, ASR

Putting people first, every day BDO is a firm built on a foundation of positive relationships with our people and our clients. Each day, our professionals provide exceptional service, helping clients with advice and insight they can trust. In turn, we offer an award-winning environment that ...

Full Stack Developer, ASR

Putting people first, every day BDO is a firm built on a foundation of positive relationships with our people and our clients. Each day, our professionals provide exceptional service, helping clients with advice and insight they can trust. In turn, we offer an award-winning environment that ...

Senior C# Developer (Contract) Front Office Engineering | Hedge Fund

Our client is a highly regarded discretionary investment manager with a strong focus on data‑driven decision making. They operate with a small, agile structure and are recognised for their commitment to excellence in trading and technology. Their in‑house technology function spans IT infrastructure, ...

Engineering Manager

Snyk is the leader in secure AI software development, helping millions of developers develop fast and stay secure as AI transforms how software is built. Our AI-native Developer Security Platform integrates seamlessly into development and security workflows, making it easy to find, fix, and prevent vulnera ...

DevOps Engineer

DevOps Engineer - London - 3 days in the office will be required in the City of London. Miller Maxwell is working with a leading financial services organisation, is seeking a DevOps Engineer to join their growing technology team. This is a pivotal role where you’ll be working on complex, large-scale system ...

Senior Software Engineer, Total Fund Management Trading, Public Markets Technology

Senior Software Engineer, Total Fund Management Trading, Public Markets Technology page is loaded## Senior Software Engineer, Total Fund Management Trading, Public Markets Technologylocations: Londontime type: Full timeposted on: Posted Todaytime left to apply: End Date: May 31, 2026 (30+ days left to ap ...

Senior Software Engineer, Total Fund Management Trading, Public Markets Technology

Senior Software Engineer, Total Fund Management Trading, Public Markets Technology page is loaded## Senior Software Engineer, Total Fund Management Trading, Public Markets Technologylocations: Londontime type: Full timeposted on: Posted Todaytime left to apply: End Date: May 31, 2026 (30+ days left to ap ...

Machine Learning Engineer MI6 HEO

At MI6 (the Secret Intelligence Service), we’re investing heavily in artificial intelligence and machine learning to strengthen how we operate today and prepare for the challenges of tomorrow. As a Machine Learning Engineer , you’ll be a key part of that transformation. You’ll be wor ...

Machine Learning Engineer MI6 HEO

At MI6 (the Secret Intelligence Service), we’re investing heavily in artificial intelligence and machine learning to strengthen how we operate today and prepare for the challenges of tomorrow. As a Machine Learning Engineer , you’ll be a key part of that transformation. You’ll be wor ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Lead Software Engineer Python Java Jobs in London Job Search Guide, Trends and Insights