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

iOS Developer Up to £120k + Bonus

4,000+ Quantitative Developer Jobs in United States Quantitative Developer (C++ & Python) | New Team Build (Seattle) | Elite Quant Hedge Fund Trading/Quantitative Modeling | Analyst | New York Senior Quant Developer | Next gen quant research platform/new team build | Boston </ ...

Principal Software Engineer

I am looking for a Principal Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This investment will support the continued scaling of their platform, which experienced nearly 5x growth over the past year alone. This Princip ...

Senior Software Engineer

I am looking for a Senior Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This investment will support the continued scaling of their platform, which experienced nearly 5x growth over the past year alone. This Senior Sof ...

Senior Software Engineer

I am looking for a Senior Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This investment will support the continued scaling of their platform, which experienced nearly 5x growth over the past year alone. This Senior Sof ...

Principal Software Engineer

I am looking for a Principal Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This investment will support the continued scaling of their platform, which experienced nearly 5x growth over the past year alone. This Princip ...

SC Java Developer

Software Engineer Our new client are expanding their engineering capability and are looking for talented Software Engineers with a strong focus on Java to join a growing team. If you thrive in modern engineering environments and enjoy building scalable, high‑quality services, this role will put y ...

Lead Software Engineer Backend Engineer Chase UK

At JP Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions of c ...

Lead Software Engineer Backend Engineer Chase UK

J.P. Morgan is seeking a Lead Software Engineer to join their International Consumer Bank team in London, UK. Job Description We are transforming digital banking with intuitive and enjoyable customer journeys. We have been building the bank of the future from the ground up, offering you the ...

Lead Software Engineer Backend Engineer Chase UK

At JP Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions of cust ...

Lead Software Engineer Backend Engineer Chase UK

At JP Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions of cust ...

Engineering Manager: AI Security Platform Lead

A leading software security company seeks an experienced engineering manager to lead a collaborative team. The role involves developing efficient APIs, mentoring engineers, and driving successful project deliveries. Candidates should have strong leadership skills, experience in high-growth environments, and prog ...

Senior Solution Architect London (Hybrid, Insurance)

A leading staffing company is seeking a Solution Architect to lead software development projects in London. The successful candidate will manage project lifecycles, collaborate with cross-functional teams, and design solutions using technologies like Java, Python, and AWS. You should have strong leadership skill ...

Platform Engineer

Mid-Level Platform Engineer (DevEx) – GCP, Kubernetes, Terraform, CI/CD, Python Oliver Bernard are currently seeking a strong, Mid-Level Platform Engineer (from a Software Engineering background) to join a client of ours on a digital transformation orientated project. Exist ...

Java Developer Hedge Fund (London, Hybrid)

Java Software Engineer with around 3-6 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting ...

Platform Engineer

Mid-Level Platform Engineer (DevEx) – GCP, Kubernetes, Terraform, CI/CD, Python Oliver Bernard are currently seeking a strong, Mid-Level Platform Engineer (from a Software Engineering background) to join a client of ours on a digital transformation orientated project. Exist ...

Java Developer Hedge Fund (London, Hybrid)

Java Software Engineer with around 3-6 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting ...

Senior Backend Engineer Golang Security

Senior Software Engineer - Golang Information SecurityPlease read the information in this job post thoroughly to understand exactly what is expected of potential candidates.£600-650 per day - Inside IR353 days per week on-site, 2 days WFH3 Month rolling contract up to 2 yearsJob SummaryTh ...

Data Platform Engineer

Start Date: Mid-May 2026 Contract Type: Contract We are seeking experienced Mid to Senior Java / Data Platform Engineers to support a high-profile client engagement. The role will focus on building and optimising scalable, data-driven applications and distributed systems, with ...

Senior Software Engineer

Overview G MASS are currently looking for an experienced Software Engineer to join a leading Investment Manager client on an initial 6-month engagement. This role sits within a core engineering team at the centre of a highly quantitative investment environment, supporting the technology and data p ...

Senior Software Engineer

G MASS are currently looking for an experienced Software Engineer to join a leading Investment Manager client on an initial 6-month engagement. This role sits within a core engineering team at the centre of a highly quantitative investment environment, supporting the technology and data platforms th ...

Senior Software Engineer

G MASS are currently looking for an experienced Software Engineer to join a leading Investment Manager client on an initial 6-month engagement. This role sits within a core engineering team at the centre of a highly quantitative investment environment, supporting the technology and data platforms that underpi ...

Senior Software Engineer

G MASS are currently looking for an experienced Software Engineer to join a leading Investment Manager client on an initial 6-month engagement. This role sits within a core engineering team at the centre of a highly quantitative investment environment, supporting the technology and data platforms that underpi ...

Lead Security Engineer Full Stack Developer React / Java

Lead Security Engineer - Full Stack Developer - React / Java LONDON, United Kingdom Job Information Job Identification Job Category Security Engineering Business Unit Corporate Sector Posting Date 03/07/2025, 03:18 PM Locations LONDON, Uni ...

Lead Frontend Engineer Java & Open Source (Private & FS)

Lead Frontend Engineer - Java & Open Source (Private & FS) Full-time Department: Digital, Data and Cloud Version 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise ena ...

Lead Java Engineer — Real Time Risk & Cloud Platforms

A global financial institution in Greater London seeks a Full-Time Applications Developer to lead real-time risk enhancements for their Credit Business. The ideal candidate should have strong experience in Core Java, J2EE, Spring Framework, and exposure to Python. An understanding of Front Office Risk calculatio ...

Lead QA Engineer (Java) – Automation, CI/CD & Security

A leading genomic medicine organization in the UK is seeking a skilled Lead QA Engineer to enhance quality assurance across multiple squads. The role requires deep expertise in Java and Playwright, focusing on designing automation test frameworks and mentoring teams. The position involves planning QA strategies ...

Senior Lead Backend Platform Engineer (Java/Spring Boot)

A leading financial services firm in Greater London seeks a Senior Lead Software Engineer to develop and maintain backend frameworks using Java and Spring Boot. This role involves driving best practices, collaborating with product teams, and mentoring engineers. The ideal candidate has a deep technical backgroun ...

Lead Java/Scala/Ruby Engineer — Startup, Relocation Offered

This is a job posted by our partner Jooble Yes, it’s a start-up, yes it's bleeding edge. Language is irrelevant. I want bright technologists who can cut solid code. I offer relocation for strong candidates. Job Description Quant Capital is urgently looking for a Lead Java / Scala / R ...

Senior Backend Lead Engineer (Java & Kotlin) – Fintech Innovation

A major financial services firm located in Greater London seeks a Senior Lead Software Engineer to lead the development of innovative products focused on solving real-world problems for customers. The candidate will thrive in collaborative environments, bringing a curious mindset and passion for fintech to the t ...

Senior Platform Lead Engineer: Java/SpringBoot on GCP

LinuxRecruit is seeking a Lead Developer in Greater London to spearhead the development of applications and APIs using Java within a SpringBoot framework on a GCP Platform. This role emphasizes leadership and mentoring junior developers, enabling personal and team growth in a dynamic and socially responsible env ...

Lead FX Pricing Engineer — Low Latency Java Leader

Citigroup Inc. in Greater London is seeking a hands-on Java engineer to lead a high-quality team and drive technical implementation in FX Technology. The ideal candidate will utilize ultra-low-latency development practices and collaborate with trading and quant teams. With strong systems knowledge, exceptional c ...

Java Lead eSoftware Engineer Equities Algo Trading VP

Job Description We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorgan Chase within the Equities Trading Technology Organization, you are an integral part of an agile team that works t ...

Java Lead eSoftware Engineer Equities Algo Trading VP

Java Lead eSoftware Engineer - Equities Algo Trading - VP LONDON, LONDON, United Kingdom Job Information Job Identification Job Category Software Engineering Business Unit Corporate Sector Posting Date 05/12/2026, 10:42 AM Location ...

Java Lead eSoftware Engineer Equities Algo Trading VP

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Lead Software Engineer at JPMorgan Chase within the Equities Trading Technology Organization, you are an integral part of an agile team that works to enhance, build, and deliver t ...

Java Lead eSoftware Engineer Equities Algo Trading VP

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Lead Software Engineer at JPMorgan Chase within the Equities Trading Technology Organization, you are an integral part of an agile team that works to enhance, build, and deliver t ...

Senior Python Engineer — Real Time Risk Platform Lead

A leading financial services firm in London is seeking a Senior Lead Software Engineer to enhance credit risk management solutions. The role involves providing technical leadership, developing secure code, and advocating for best practices in software development. Ideal candidates will have advanced Python skill ...

Lead AI/ML Engineer (Python) – Cloud, MLOps & AWS

A leading global financial services firm is seeking a Lead Software Engineer to join their Applied Artificial Intelligence and Machine Learning team. You will play a pivotal role in transforming operations by integrating innovative AI/ML solutions. The ideal candidate has strong skills in Python and Kubernetes, ...

Senior AI/ML Cloud Engineer — Python & AWS Lead

Job DescriptionJ.P. MorganChase is seeking a Senior Software Engineer with expertise in AWS and Python, and a passion for Machine Learning, to help engineer and deploy innovative ML solutions into production. Job DescriptionJ.P. MorganChase is seeking a Senior ...

Lead Backend Engineer, Real Time Trading (C++/Python)

A leading global trading venue is seeking a seasoned professional for a leadership position focused on low-latency engineering and stakeholder collaboration. Located in London with a hybrid work model, the role requires strong C++ and Python skills, along with a proven track record in modernizing legacy systems. ...

Lead Python Engineer Scale New Lending Products (Hybrid)

A financial technology company in Greater London is seeking a Lead Python Engineer to lead a team and develop new lending products. This hands-on role combines technical leadership with team management, focusing on building production-grade Python services. The ideal candidate will have experience in Python prod ...

Senior Data Engineer Lead Python, SQL, AWS, Microservices

A leading financial institution in London seeks a skilled Lead Data Engineer to enhance and deliver top-tier technology products. This role includes leading a team of Data Engineers, conducting Agile ceremonies, and delivering cloud-native microservice applications. The ideal candidate should have strong experti ...

Senior Data Engineer Lead – Python, SQL, Cloud Microservices

A leading global financial services firm in London seeks a Data Engineering Lead to drive Agile practices and deliver scalable, cloud-native solutions. The ideal candidate will have at least 3 years of experience in software engineering, with strong skills in AWS, Python, and SQL. Responsibilities include leadin ...

Senior Python Lead Engineer – Microservices for Delta One

A global investment bank is seeking a Lead Software Engineer based in Greater London. In this role, you will engineer scalable RESTful micro-services and APIs while guiding a team of developers. The ideal candidate should have extensive Python experience and a solid understanding of microservices architecture, C ...

Lead Python Engineer for Front Office Quant Trading

A leading financial services firm in the Greater London area is hiring a Lead Software Engineer to work on trading and investment projects. You will collaborate with developers, quants, and traders, focusing on developing engines, services, and APIs while applying disciplined code management. Candidates should h ...

Lead AI/Python Engineer (+ Equity) at LightWork AI

Job Title Lead AI/Python Engineer Company Description LightWork AI - Fast-growing AI startup transforming real estate technology Location London, UK Job Description Join LightWork AI in London to lead the full lifecycle of AI development. You ...

Senior Principal Engineer Cloud Lead & Mentor (AWS/Python)

A tech company in London seeks a Principal Engineer to integrate hands-on expertise with leadership skills in a collaborative environment. This role involves mentoring team members while utilizing AWS, Terraform, and Python. The successful candidate will demonstrate a passion for engineering best practices and a ...

Senior Python Full Stack Engineer Network Automation Lead

State Street is seeking a highly skilled senior level developer with network infrastructure experience to join their development team in Greater London. You will work on full-stack solutions for automating network technologies and collaborate closely with network engineers. Candidates should have a Bachelor's de ...

Senior Python Backend Engineer Lead Tech & Crypto Equity

LinuxRecruit in Greater London is seeking a Software Engineer for back-end development to drive team innovation in telecommunications. You will design and scale backend systems, utilizing your expertise in Python and frameworks suitable for diverse technical challenges. This role offers autonomy over technical d ...

Lead Python Engineer for AI & Data (Hybrid UK)

RAW Search is collaborating with a leading consulting firm to find a Lead Python Engineer in Greater London. The role entails leading the design of Python services and REST APIs, managing code repositories, and enforcing best practices in a hybrid working environment. Ideal candidates should have advanced Python ...

Lead Full Stack Engineer — Python/React/FastAPI (Hybrid)

Client Server is seeking a Lead Full Stack Engineer / Developer to lead a talented team in London. In this role, you'll make architectural decisions, provide technical leadership, and mentor engineers while working on large-scale systems. You'll have strong expertise in Python, Django, TypeScript, React, and Fas ...

🚀 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