Software Engineer Python Java Data 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 Legal AI Engineer — Drive Generative AI Across Law

Simmons & Simmons is seeking a Senior Legal Engineer for their Bristol or London office. This role is pivotal in driving the adoption of generative AI across the firm by collaborating with legal and technical teams, delivering training, and addressing AI-related queries. This position requires a minimum of two y ...

Mobile M&E Engineer Van & Door to Door Pay

A leading facilities management provider is seeking an experienced M&E Engineer based in or near London. The role involves delivering high-quality maintenance services across a portfolio. The position offers a competitive salary up to £36,631, a company van, and extensive career progression opportunities. Applic ...

Senior Full Stack Engineer: AI SaaS, Remote, Stock Options

A leading tech start-up in the UK is seeking a Senior Full Stack Engineer to join their team and work on creating innovative AI-powered SaaS solutions. You will leverage cutting-edge technologies like React, Next.js, and Typescript to develop impactful products. The company offers competitive salaries with excel ...

GCP Cloud Security Engineer – DV/SC Ready (Hybrid, London)

IO Associates is looking for a Cloud Security Engineer (GCP/IAM/Encryption) for a 12-month contract in London. The role involves designing secure workloads in a cloud platform for UK government projects. You'll need strong experience in cloud security engineering and a proven background in IAM and network securi ...

Senior Full Stack Engineer Fintech Platform Architect & AI CFO

A fintech startup is seeking a Senior Full-Stack Engineer to own the technical architecture for a platform revolutionizing cross-border finance. You will lead the development of a high-performance React/TypeScript dashboard and build multi-currency wallets using cutting-edge technologies. The ideal candidate has ...

Senior/Principal E&P Engineer Fixed Plant Rail (Hybrid)

WSP USA is looking for a Senior/Principal E&P (Fixed Plant) Engineer in Greater London to lead the Fixed Plant elements of diverse rail engineering projects. You will manage complex designs and oversee multi-disciplinary teams while providing mentorship to early career professionals, ensuring project deliverable ...

LLM AI Engineer — Build Next Gen Products in London

A leading tech startup in London is searching for a passionate engineer to develop and apply LLM-based features. The role involves collaborating with a cross-functional team and interacting with users to create user-centric products. Candidates should have engineering experience, a strong background in LLM solut ...

Mobile QA Engineer: Android/iOS (Espresso/Swift) – Onsite London

RevTech is seeking a Mobile QA Engineer for a contract role focusing on payments solutions. The ideal candidate will have strong testing experience on both Android (Kotlin - Espresso) and iOS (Swift), as well as familiarity with tools such as Monkey Talk, Selendriod, Appium, and Katalon. The contract runs until ...

Hybrid Front Office UI Engineer (C++/Web) Trading Platforms

A leading global bank in London is seeking a Kannon Franchise Pricing UI Developer Strat to develop user interfaces for their Global Markets. This role offers hybrid working, a competitive salary, and a supportive work environment. Ideal candidates will have strong interpersonal skills and experience in project ...

Senior Full Stack Engineer — Node.js, AWS & Cloud Native (London)

Stratacent is seeking a Full Stack Engineer based in London, UK. This role involves designing and developing scalable backend architectures, maintaining RESTful APIs, and leveraging cloud technologies, particularly AWS. The ideal candidate will have strong experience in Node.js and SQL databases. This is a fixed ...

Senior Real Time Trading UI Engineer (C# WPF/Blazor)

Mondrian Alpha, a London-based trading firm, seeks a Senior Full Stack Engineer to rebuild their client-facing trading platform. The ideal candidate will have experience in C# and develop real-time applications for professional traders. A strong background in trading desk environments and performance-oriented de ...

Senior Full Stack Engineer: Build Scalable, AI Enhanced Ops

Litta App Ltd is looking for a Full Stack Product Engineer (Mid-Senior) to join their hybrid team in London. This role involves building and maintaining applications using Vue, React, and TypeScript, while also developing backend services with Node.js and Firebase. The ideal candidate should have at least 5 year ...

Senior Full Stack Engineer: End to End Frontend Leader

A cutting-edge AI startup is seeking engineers to develop advanced user interfaces for data annotation. Your expertise in Typescript, React, and performance optimization will be crucial as you build solutions that visualize and annotate various data types. This is an unparalleled opportunity to join a rapidly ex ...

Senior Full Stack Engineer: TS/Node/React, Flexible & Remote

NPAworld is seeking a Senior Full Stack Engineer in Greater London to design, build, and maintain high-performance applications. This position involves working with TypeScript, Node.js, and React, emphasizing clean architecture and performance enhancements. Candidates should have a proven track record with produ ...

Senior Full Stack Engineer for AI Platform (React/TS)

An innovative AI research company in Greater London is seeking a Senior Full-Stack Engineer to lead the development of an AI-powered platform. This role involves direct engagement with clients to translate their needs into technical solutions. Candidates should have over 6 years of experience with React and Type ...

Staff Full Stack Engineer: Lead Kotlin/React Cloud Solutions

Deepstreamtech is seeking a Staff Full-Stack Engineer in Greater London. This role involves taking technical ownership across backend and frontend development using Kotlin and React, shaping high-quality, scalable solutions. Responsibilities include leading design and development efforts, maintaining cloud-nativ ...

Mobile Engineer (React Native) for AI Driven 3D Tools

Customuse Ltd is seeking a Mobile Engineer to create innovative mobile experiences by integrating AI-powered workflows and real-time graphics. This role is ideal for engineers at various experience levels who are passionate about mobile, AI, and creative tools. You will work with React Native to develo ...

Senior Full Stack Engineer: React/Node on AWS, Mentor

Deepstreamtech in Greater London is looking for a skilled engineer to take ownership of technology improvements. The role involves extensive work with modern technologies, including React and AWS, and requires strong communication and mentoring skills. You will drive enhancements through A/B testing, collaborati ...

Associate Director / Technical Director Electrical Healthcare Engineer (Building Services)

What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field to do the best work of your life. You can embrace your curiosity in a culture that celebrates new ideas and dive ...

PREMIER CENTRAL LONDON CONSULTANCY: Civil Infrastructure Design/Project Engineer

Job Description Premier Central London consultancy requires a Civil Infrastructure Design/Project Engineer to join its busy civil infrastructure team in its expanding design studio.Candidates will need to be a Graduate member of ICE and must have gained good experience in civil ...

PREMIER SOUTH WEST LONDON CONSULTANCY: Associate Civil Infrastructure Engineer

Job Description Premier South West London consultancy requires an Associate Civil Infrastructure Engineer to join the well-established and expanding infrastructure team in its London headquarters.Candidates will need to be a Chartered member of ICE with good design and project- ...

AI Research Engineer (Agentic Post training) 100% Remote Worldwide

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reser ...

Commercial Solutions Engineer Asset & Wealth Management Scale Up

Performativ is a rising star in fintech innovation. We’re not just another player in the market; we’re a team of fintech heroes shaping the future of investment management. Our product is revolutionizing the way investment managers and financial institutions operate globally. Backed by world-class venture cap ...

ML & Cloud Infra Engineer Scale World Model AI Systems

SpAItial AI is looking for a Machine Learning & Cloud Infra Engineer to manage and evolve the infrastructure for their cutting-edge World Model research. This role includes designing and operating GPU clusters, implementing monitoring for system health, and enabling high-throughput training stacks. The ideal can ...

Senior Cloud Infra Engineer for AI Platform and Security

An innovative tech startup in London is seeking a Senior Infrastructure Engineer to lead the design and implementation of cloud systems. You'll work closely with the founders in a challenging but rewarding environment, ensuring robust, secure, and efficient infrastructure. The ideal candidate has extensive exper ...

Senior Full Stack Engineer — Ship Fast in London + Equity

Fuku is seeking a Fast Engineer in London to independently build and ship products. The ideal candidate thrives in a fast-paced startup environment, with a proven track record of quickly delivering results and strong opinions while remaining adaptable. Compensation ranges from £75,000 to £140,000 plus equity, re ...

Senior Full Stack Engineer for AI Powered CX Platform

A leading AI company in Greater London is seeking a Senior Fullstack Engineer to lead innovative projects in customer experience technology. In this role, you will develop and optimize features across the platform, focusing on solving real-world problems and integrating cutting-edge AI capabilities. Ideal candid ...

Physical Design Engineer (Advanced Node / ASIC / Full Flow Implementation)

My Client My client is a global technology company focused on advanced semiconductor and high-performance computing systems. The engineering team is dedicated to building next-generation ASIC solutions across advanced process nodes, supporting large-scale compute-intensive applications. The team ...

Associate Director / Technical Director Electrical Healthcare Engineer (Building Services)

General Associate Director or Technical Director - Electrical grade and have a proven track record in delivering Healthcare design projects for your discipline and in line with client expectations. Work in a joint leadership capacity within a mechanical, electrical and public heal ...

Senior .NET Core Engineer for Fintech Payments — Remote UK

An innovative fintech organization is seeking a skilled C#/.NET Core Engineer for a fully remote role in the UK. This exciting opportunity involves working on a cutting-edge payments platform, where you will design and develop secure, high-performance financial applications. You will collaborate with an agile te ...

Senior Full Stack Engineer — End to End Commerce Platform

An online marketplace is looking for a Senior Full Stack Engineer to manage end-to-end delivery of their commerce platform. You will design and maintain scalable solutions across front-end and back-end systems using PHP and modern JavaScript frameworks. Responsibilities include working in cross-functional teams, ...

Senior Full Stack Engineer: Build Premium UX & Scalable APIs

Mitra Bio is seeking a Senior Full Stack Engineer in Greater London to help shape a luxury-grade digital product. The role involves building exceptional web experiences, developing frontend integrations, and ensuring high product quality. Candidates should have over 5 years of relevant experience, a strong under ...

CCTV & Access Control Security Engineer – SE London (Vehicle Included)

A leading security company in South East London is seeking a skilled Security Engineer with expertise in CCTV and Access Control systems. The role includes managing clients, servicing, and repairing systems across the region. The role offers a competitive salary package of £35,000 to £40,000 with additional earn ...

AI Security Engineer — Hybrid Role with Research & Red Team

NeuralTrust, a rapidly scaling Barcelona-based startup, seeks a Cybersecurity Engineer in London. This hands-on role focuses on designing controls for protecting AI deployments in large enterprises across Europe. Ideal candidates have over 5 years of experience in cybersecurity, strong communication skills, and ...

SC‑Cleared Cloud Engineer | Secure AWS & CI/CD Automation

A technology consultancy focused on National Security is searching for a SC-cleared Cloud Engineer in Greater London. The role involves automating secure cloud platforms, designing CI/CD pipelines, and managing containerized workloads within AWS environments. Candidates should possess strong expertise in Infrast ...

Junior Agile Full Stack Engineer — Fast Track to Architect

About the job JR Graduate Agile Full-Stack Engineer At Theodo we aspire to be a “Career Sanctuary” (or a “safe”, career “fast lane”) where opportunities and inclusion are accessible to all, and people are treated with respect and progress based on merit. From Day 1 we will accelerate your t ...

AWS Cloud Security Engineer London, In Office 4 Days

A global financial technology business seeks a Security Engineer focusing on AWS security to enhance their cyber security team. You will design and maintain security controls across AWS, manage tools like Amazon GuardDuty, and lead incident response activities. The role involves working closely with DevOps teams ...

Live Ops Support Engineer, Prime Video Playback Live Operations

Prime Video is a first-stop entertainment destination offering customers a vast collection of premium programming in one app available across thousands of devices. Prime members can customise their viewing experience and find their favourite movies, series, documentaries, and live sports – including Thursda ...

PREMIER CENTRAL LONDON CONSULTANCY: Graduate Structural Engineer (2025 2026)

Job Description Premier Central London consultancy has a requirement for a Graduate Structural Engineer (2025-2026) to join one of its teams, and individuals will need the following to be considered: Student/Graduate membership of IStructE and/or ICE MEng/MSc in Civil or ...

PREMIER CENTRAL LONDON CONSULTANCY: Associate/Chartered Senior Structural Engineer

Job Description Premier Central London consultancy has a requirement for an Associate/Chartered Senior Structural Engineer to join one of its teams as it continues to grow due to a large uplift in workload.Candidates will need to be a Chartered member of IStructE and/or ICE and ...

MAINSTREAM CENTRAL LONDON CONSULTANCY: Senior Civil Infrastructure Engineer/Associate

Job Description Mainstream Central London consultancy has a requirement for a Senior Civil Infrastructure Engineer/Associate to join the established infrastructure team.Candidates will need to be a Chartered member of ICE and must have extensive civil infrastructure (roads and ...

PREMIER CENTRAL LONDON CONSULTANCY: Chartered Senior Structural Engineer/Associate

Job Description Premier medium-sized consultancy requires a Chartered Senior Structural Engineer/Associate to join the busy, expanding City of London design studio.Candidates will need to be Chartered with IStructE and/or ICE and must have extensive structural engineering desig ...

UI Engineer (React and TypeScript) London, UK Fulltime Hybrid

Job Title: UI Engineer (React and TypeScript)Location: London, UKAbout the Job you are considering:We are seeking experienced UI Engineer (React and TypeScript) with strong expertise in Banking domain who will overseeing the planning, execution, and s ...

MAINSTREAM CENTRAL LONDON FAÇADE CONSULTANCY: Façade (Structural) Engineer/Associate

Job Description Mainstream Central London façade engineers require a Façade (Structural) Engineer/Associate to join the new satellite studio of an established consultancy.Candidates will be a Graduate member of IStructE, ICE or CIBSE, be educated to BEng/BSc-level (2:1 min) and ...

Full Stack Web Developer & AI Automation Engineer (100% Remote)

The people who worked for AirBnB, Uber, and Amazon for pennies in the early days? Many are now Directors and C-level shareholders worth millions. We're not promising you'll become a millionaire. But we're not saying you won't either.Early partners who help build this will be rewarded like shareholders ...

MAINSTREAM CENTRAL LONDON CONSULTANCY: Graduate Civil Infrastructure Design Engineer

Job Description Mainstream Central London consultancy requires a Graduate Civil Infrastructure Design Engineer to join its expanding civil infrastructure team in its design studio.Candidates will need to be a Graduate member of ICE, be educated to BEng/BSc-level in Civil or Env ...

AI Research Engineer (MultiModal Reinforcement Learning) 100% Remote Worldwide

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reser ...

Commissioning Engineer m/fd (Solar PV – Construction & Energisation Focus)

OverviewWe are seeking a Commissioning Engineer specialising in utility-scale solar PV projects. This role focuses ...

NICHE CENTRAL LONDON CONSULTANCY: Chartered Senior Structural Engineer/Associate

Job Description Niche Central London consultancy requires a Chartered Senior Structural Engineer/Associate to join the expanding, award-winning design studio.Candidates will need to be a Chartered member of IStructE and/or ICE, be educated to MEng/MSc-level in Structural, Civil ...

Lead Substations Plant Engineer (m/f/d) Transmission & Distribution

Job DescriptionLocation: across all our UK officesAre you an experienced extra high voltage or high voltage engineer? Do you want to push the boundaries of your profession and develop in an open, collaborative, and empowering culture? Are you looking for an exciting new challenge? ...

🚀 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

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