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

AI Engineer Generative & Agentic AI

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 Engineering Lead (Business Accounting Integrations and Reporting)

Senior Engineering Lead - Business Accounting Integrations and Reporting Full-time Compensation: GBP 125,000 - GBP 153,000 - yearly Wise is a global technology company, building the best way to move and manage the world’s money.Min fees. Max ease. Full spee ...

Infrastructure Architect

Job Description Infrastructure Solutions ArchitectThe primary role of the IT Infrastructure Solutions Architect, is to ensure all IT Infrastructure applications architecture and design, systems and software Integration, functional requirements gathering, whether from inception ...

Technical Solutions Architect

Job Description Technical Solutions ArchitectThe primary role of the IT solutions architect, is to ensure all IT Infrastructure applications architecture and design, systems and software Integration, functional requirements gathering, whether from inception or enhancements, are ...

Engineering Lead Business Accounting Integrations and Reporting

Engineering Lead - Business Accounting Integrations and Reporting Full-time Compensation: GBP 111,000 - GBP 135,000 - yearly Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. ...

Technical Solutions Architect

Job Description Technical Solutions ArchitectThe primary role of the IT solutions architect, is to ensure all IT Infrastructure applications architecture and design, systems and software Integration, functional requirements gathering, whether from inception or enhancements, are ...

Infrastructure Architect

Job Description Infrastructure Solutions ArchitectThe primary role of the IT Infrastructure Solutions Architect, is to ensure all IT Infrastructure applications architecture and design, systems and software Integration, functional requirements gathering, whether from inception ...

Senior Platform Engineer

The Company Lab 1 is a fast-growing cybersecurity startup, which identifies and interprets exposed data on behalf of our clients. Lab 1’s AI SaaS platform analyses the full corpus of exposed corporate data in near real time, providing customers with the assurance that they’ll know the unknown and ...

Global Fixed Income Tech Lead Hybrid & Growth

Citibank (Switzerland) AG is seeking an Applications Development Lead in Greater London to oversee critical application development for the Markets Financing desk. This senior role includes designing resilient back-end systems and collaborating with business stakeholders to ensure regulatory compliance. Candidat ...

SVP, Equities Tech Lead – EMEA (Hybrid)

A leading global financial services company is seeking a Senior Vice President for Equities Cash EMEA High Touch Technology Lead in London. The successful candidate will oversee multi-year technology transformation for sales and trading platforms, emphasizing efficient platform delivery and collaboration with bu ...

Engineering Manager AI Driven API Platform (Hybrid)

A leading AI and API management company in the UK is seeking an Engineering Manager to foster and lead high-performing teams. In this role, you'll bridge traditional management with AI technologies, ensuring scalable and high-quality development. Ideal candidates have over 10 years in engineering leadership, inc ...

EMEA Equities Tech Lead — Senior VP, High Touch Platform

A leading global financial institution is seeking a Senior Vice President to lead the strategic delivery of the consolidated Sales & Trading platform in London. This role involves overseeing a multi-year technology transformation, managing a global development team, and ensuring compliance with EMEA regulations. ...

Engineering Leader, Fintech Platform for Back/Middle Office

A leading financial technology firm is seeking a senior engineering leader to drive the development of middle and back-office platforms. The role requires expertise in C# or Java, along with strong domain knowledge in private credit, fixed income, and related asset classes. You will lead engineering teams, overs ...

London based Quant Engineering Lead – Derivatives

Quant Capital is looking for a Head of Quant Engineering to lead their engineering efforts. The role is based in London, United Kingdom, and offers a competitive salary of up to £250,000. Candidates should have a solid background in Quant Modelling and programming experience in C++, C#, or Java. An und ...

NodeJS Developer Fintech in London Quant Capital

Experience & Skills Experience may have occurred at school. HTML5 TypeScript/JavaScript NodeJS Proficiency in building responsive web applications using React. Testing through Unit to Integration test suites with tools like Junit, Cucumber, and Selenium. S ...

Fintech NodeJS Developer Hybrid & Growth Focused

Experience & Skills Experience may have occurred at school. HTML5 TypeScript/JavaScript NodeJS Proficiency in building responsive web applications using React. Testing through Unit to Integration test suites with tools like Junit, Cucumber, and Selenium. S ...

Data Engineering Manager

Overview TL;DR Kharon is seeking a full-time, London based Data Engineering Manager . Occasional in office attendance is required for this role. Responsibilities Lead, mentor, and scale a small high-performing, high-output data and software engineering team, foster ...

Global Banking & Markets Software Engineer Vice President London London · United Kingdom [...]

Global Banking & Markets - Software Engineer - Vice President - London location_on London, Greater London, England, United Kingdom The Opportunity Goldman Sachs has embarked on one of its most ambitious engineering programs: the Consolidated Trade Ledger (CTL) , a ground‑up reimagi ...

Performance Analysis Engineer

SummaryAs part of our Silicon Technologies group, you’ll help design and manufacture our next-generation, high-performance, power-efficient processor, system-on-chip (SoC). You’ll ensure Apple products and services can seamlessly handle the tasks that make them beloved by millions. Joining this ...

Senior Data Engineer | Front‑Office Data Platform

A top quantitative hedge fund is hiring a Senior Data Engineer to join a front office‑facing data platform team supporting systematic trading groups. This role sits at the core of how researchers access and trust data. The focus is on building and operating Python‑based data platforms that ...

AI Engineer

We are seeking an experienced and forward‑thinking AI Lead Engineer to join our AI Ops delivery team. In this role, you will lead the design, development, and delivery of GenAI‑powered agentic systems that automate complex business processes across domains such as HR, Payroll, SAP, and Clie ...

Perm Founding AI Engineer London (3 days a week) Energy StartUp

Job Description Founding AI Engineer – AI Agents – London – £120k–£150k + Equity - Hybrid 3 days a week in office A venture-backed AI startup is looking for a Founding Engineer to help build a next-generation agentic AI platform transforming how billions are deployed int ...

Mid Level Full Stack Engineer

Full-Stack Engineer (Mid-Level) – £75k + Equity – London (Hybrid) A well-funded AI startup based in central London is growing its engineering team and hiring a mid-level full-stack engineer. The company is focused on helping businesses integrate AI into re ...

Perm Founding AI Engineer London (3 days a week) Energy StartUp

Job Description Founding AI Engineer – AI Agents – London – £120k–£150k + Equity - Hybrid 3 days a week in office A venture-backed AI startup is looking for a Founding Engineer to help build a next-generation agentic AI platform transforming how billions are deployed int ...

Security Architect

Location & Practice London (Hybrid) | Technology & Engineering | Permanent Overview Safeguard the digital future of financial services. The Role We are looking for Security Architects to lead the design and implementation of secure, scalable solutions for some of th ...

Solutions Engineer

Your team Payrails is a highly dynamic workplace with our Merchant Onboarding team fronting to our clients. Our mission is to: Deliver tailor‑made and innovative solutions to complex and demanding merchant requirements, pain points, and use cases Provide best‑in‑class onbo ...

Data Architect

6-Month contract – Inside IR35 – up to £700 per day London based – hybrid working – 2/3 days onsite Candidates must hold current and active SC Clearance We are seeking a Data Architect to lead the design and delivery of secure, cloud-based data platforms for the ...

Site Reliability Engineer Trading £70,000 £120,000 + Bonus

Job title: Site Reliability Engineer – Trading Client: Elite FinTech Salary: £70,000-£120,000 + Bonus Location: London Skills: Linux, Chef, Puppet, Ansible, Kubernetes, Docker, CI/CD, Python The role: My cl ...

Site Reliability Engineer Trading £70,000 £120,000 + Bonus

Job title: Site Reliability Engineer – Trading Client: Elite FinTech Salary: £70,000-£120,000 + Bonus Location: London Skills: Linux, Chef, Puppet, Ansible, Kubernetes, Docker, CI/CD, Python The role: My cl ...

Site Reliability Engineer Trading £70,000 £120,000 + Bonus

Job title: Site Reliability Engineer – Trading Client: Elite FinTech Salary: £70,000-£120,000 + Bonus Location: London Skills: Linux, Chef, Puppet, Ansible, Kubernetes, Docker, CI/CD, Python The role: My cl ...

Site Reliability Engineer Trading £70,000 £120,000 + Bonus

Job title: Site Reliability Engineer – Trading Client: Elite FinTech Salary: £70,000-£120,000 + Bonus Location: London Skills: Linux, Chef, Puppet, Ansible, Kubernetes, Docker, CI/CD, Python < ...

Head of Software (ML & Web)

About ZELP ZELP is an agricultural technology company committed to creating a sustainable future for agriculture - one that meets the needs of present and future generations, promoting human and environmental health, animal welfare, and social and economic equity. Our first focus is to de ...

Senior Full Stack Engineer

Role: Senior Full Stack Engineer (Node/React OR Python/React) Salary: £90,000 – £110,000 + meaningful Equity Location: Central London – Hybrid working (3 days p/w) ...

Senior Full Stack Engineer

Role: Senior Full Stack Engineer (Node/React OR Python/React) Salary: £90,000 – £110,000 + meaningful Equity Location: Central London – Hybrid working (3 days p/w) ...

Senior Full Stack Engineer

Role: Senior Full Stack Engineer (Node/React OR Python/React) Salary: £90,000 – £110,000 + meaningful Equity Location: Central London – Hybrid working (3 days p/w) ...

Senior Full Stack Engineer

Role: Senior Full Stack Engineer (Node/React OR Python/React) Salary: £90,000 – £110,000 + meaningful Equity Location: Central London – Hybrid working (3 days p/w) ...

Backend Engineer – Real Time Voice AI Platform

A voice AI startup based in London is seeking a Backend Engineer to join their team. As the second backend engineer, you'll own the core API platform, designing scalable infrastructure for real-time voice interpretation. Expertise in Python is essential, as you'll be working on cutting-edge technology that addre ...

Principal Engineer in London LinuxRecruit

Principal Engineer London, United Kingdom Posted 6 months ago Tech stack mentor Python Terraform Amazon AWS Job Description Architecture and engineering best practices. A split between both hands‑on and leadership, worki ...

Site Reliability Engineer (SRE) Data Platform in London Apple Inc.

Site Reliability Engineer (SRE) – Data Platform London, United Kingdom Full time, visa sponsorship not provided. Tech Stack Python Go S3 Reliability Responsibilities Design, author, and release code in G ...

HPC Engineer in London Quant Capital

HPC Engineer London, United Kingdom Tech Stack Ansible Containers Architecture Shell Python High performance computing Performance tuning Bash Linux Responsibilities ...

Network SRE in London Quant Capital

Network SRE London, United Kingdom Network Site Reliability Engineer role focused on developing and maintaining network and datacenter infrastructure. Responsibilities Develop network and datacenter infrastructure with consistent and straightforward processes. ...

Network Engineer Quantitative Trading in London Quant Capital

Network Engineer - Quantitative Trading Location: London, United Kingdom Posted: about 1 year ago Tech Stack: Bash Python Trading Linux Go Quantitative Responsibilities and skills: Networking ...

Senior Asp.Net Developer

Job Description: Senior ASP.NET Developer We are looking for Full Stack Software Developer to work in our development team. The role involves participation in the full Lifecycle of software development (SDLC) from conception to deployment. This is an excellent opportunity for an individual wh ...

Full stack Engineer

Company Overview Model ML is the AI workflow builder transforming how major financial institutions produce and validate client-ready work. Model ML converts complex, manual processes into fully automated AI systems that scale across global teams. In under a year, Model ML has become one of the fa ...

Application Support : £120,000 + Bonus (Buyside trading)

Overview Senior Headhunter at Hunter Bond | London | New York | Singapore | Montreal | Specialising in Infrastructure Engineering Job Title: Application Support Engineer Client: FinTech Salary: Up to £120,000 + Bonus/Benefits Location: Lo ...

Senior Platform Engineer

Lab 1 is a fast-growing cybersecurity startup, which identifies and interprets exposed data on behalf of our clients. Lab 1’s AI SaaS platform analyses the full corpus of exposed corporate data in near real time, providing customers with the assurance that they’ll know the unknown and reducing the risk, co ...

Senior Platform Engineer

The Company Lab 1 is a fast-growing cybersecurity startup, which identifies and interprets exposed data on behalf of our clients. Lab 1’s AI SaaS platform analyses the full corpus of exposed corporate data in near real time, providing customers with the assurance that they’ll know the unknown and ...

Trading Systems Engineer

Hudson River Trading (HRT) is seeking a Trading Systems Engineer to join our growing Trading Systems Infrastructure team. This team designs, builds, and maintains the infrastructure that powers our global trading, and is responsible for ensuring optimal performance and uptime of the ultra low-latency opera ...

Senior Deep Learning Research Engineer

At Plumerai, we make it easy and affordable for developers to add highly accurate AI to embedded devices, enabling them to create amazing new products. We combine our on-device Tiny AI software with cloud-based multimodal LLMs, providing People Detection, Video Search, Familiar Face Identification, AI Capt ...

Embedded Systems Engineer

Rivan Industries (Rivan.com) is a synthetic fuel company designed to decarbonise heavy industry. We aim to make synthetic fuel cheaper than fossil fuels and sustain life on earth by keeping the CO2 locked underground. We design and manufacture modular synthetic fuel plants consisting of a DAC system ...

🚀 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