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

AI Developer

About Us Finalto is a global leader in liquidity provision and trading technology solutions, serving institutional and B2B clients across financial markets worldwide. With regulated entities in the UK, Singapore, Cyprus, Australia, and the UAE, and additional operational te ...

Quantitative Trading & Research – Credit Portfolio – Vice President

Overview Quantitative Trading & Research (QTR) is an expert quantitative modelling group that partners with traders, marketers and risk managers across products and regions, promoting client interaction, product innovation, valuation and risk management, inventory and portfolio optimization, elect ...

Crowd TD

The multi-Oscar-winning creative at Framestore has worked with some of the greatest storytellers in film today. Collaborating with directors and producers across the complete filmmaking process to help design, plan and create beautiful images, we focus on finding innovative creative solutions to support their ...

Senior Machine Learning Engineer, Perception

About Rivian Rivianis on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract. As a company, we constantly challenge what’s possible, never simply accepting what ...

Technical Lead

Have you led engineering teams technically? Do you love combining exciting technical challenges with positive impact? ♻ Technical Lead – Tech for Good ♻ Up to £130k + bonus + shares + benefits </ ...

Engineering Manager

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure per ...

Director of Product

Role Overview: We are looking for a Director of Product to lead product strategy, portfolio development, and lifecycle management for our digital health and life sciences software solutions. You will oversee product managers, define strategic priorities, and ensure our software products deliver st ...

Technology Lawyer (IT, IP & AI)

We are seeking an experienced Technology Lawyer to join our clients growing legal team within a dynamic software business based in London. This role will support cutting-edge product development, including AI-driven solutions, and requires a commercially minded lawyer with deep expertise in IT, intellectual p ...

Technology Lawyer (IT, IP & AI)

We are seeking an experienced Technology Lawyer to join our clients growing legal team within a dynamic software business based in London. This role will support cutting-edge product development, including AI-driven solutions, and requires a commercially minded lawyer with deep expertise in IT, intellectual p ...

Technology Lawyer (IT, IP & AI)

We are seeking an experienced Technology Lawyer to join our clients growing legal team within a dynamic software business based in London. This role will support cutting-edge product development, including AI-driven solutions, and requires a commercially minded lawyer with deep expertise in IT, intellectual p ...

Founding AI Engineer

Founding Engineer | London | Up To £140,000 + Equity We’re working with a well-backed early-stage AI company building enterprise-grade generative AI systems for complex, high-value workflows. The team is small, technical, and moving fast - they’re now looking for a Founding AI Engin ...

Founding AI Engineer

Founding Engineer | London | Up To £140,000 + Equity We’re working with a well-backed early-stage AI company building enterprise-grade generative AI systems for complex, high-value workflows. The team is small, technical, and moving fast - they’re now looking for a Founding AI Engin ...

Founding AI Engineer

Founding Engineer | London | Up To £140,000 + Equity We’re working with a well-backed early-stage AI company building enterprise-grade generative AI systems for complex, high-value workflows. The team is small, technical, and moving fast - they’re now looking for a Founding AI Engin ...

Full Stack C# Developer

Job Description Ensure all your application information is up to date and in order before applying for this opportunity.Full-Stack C# Developer - Greenfield Projects - £40k - £110k DOE (Various roles)City of LondonAre you a talented developer looking to work in a non-corporate, collaborative en ...

Founding AI Engineer

Founding Engineer | London | Up To £140,000 + Equity We’re working with a well-backed early-stage AI company building enterprise-grade generative AI systems for complex, high-value workflows. The team is small, technical, and moving fast - they’re now looking for a Foundin ...

Principal Network Architect

Headquartered in London, CACI Ltd is a wholly owned subsidiary of CACI International Inc., a publicly listed company on the NYSE with annual revenue in excess of US $6.2bn and employing approx. 22,000 people worldwide. CACi Ltd is an international data and technology consultancy with £154m turnover ...

Intern Chief of Staff (CEO Office)

Location: London / Milan (flexible) Duration: 3–6 months (with full-time potential) About Shop Circle Shop Circle is a fast-growing, AI-first technology company on a mission to build the infrastructure ...

Product Support Analyst

As a Product Support Analyst, you’ll serve as the first point of contact for users of our legal technology products, providing timely, effective technical support through phone, email, and an internal portal. You'll troubleshoot and resolve software issues, document cases in our helpdesk system, and elevat ...

Product Support Analyst

As a Product Support Analyst, you’ll serve as the first point of contact for users of our legal technology products, providing timely, effective technical support through phone, email, and an internal portal. You'll troubleshoot and resolve software issues, document cases in our helpdesk system, and elevat ...

Field Service Engineer (Optical / Ophthalmic) London & South East

Field Service Engineer (Optical / Ophthalmic) - London & South East Field Service Engineer London Reference: 3332 Leading manufacturers of smart and efficient instruments and technologies in the optical industry Covering London & South East Paying up to £45,000 + ...

Data Scientist Systematic Hedge Fund

Paragon Alpha are partnered with a $50b systematic hedge fund who specialise in systematic/algo trading, now evolving into a strong multi-strategy fund with a large focus on their technology/data infrastructure. The role offers strong exposure across research, trading, and engineering, with ...

Data Scientist Systematic Hedge Fund

Paragon Alpha are partnered with a $50b systematic hedge fund who specialise in systematic/algo trading, now evolving into a strong multi-strategy fund with a large focus on their technology/data infrastructure. The role offers strong exposure across research, trading, and engineering, with ...

Data Scientist Systematic Hedge Fund

Paragon Alpha are partnered with a $50b systematic hedge fund who specialise in systematic/algo trading, now evolving into a strong multi-strategy fund with a large focus on their technology/data infrastructure. The role offers strong exposure across research, trading, and engineering, with ...

Principal Design Engineer

Overview Kingston upon Thames, Surrey – 3 days per week in the office and 2 days per week from home. Initial 12-month contract. Role will provide long-term work. Two Principal Design Engineers are required to support an initial 12-month contract based in Kingston upon Thames, Surrey with hybrid work ...

Infrastructure Engineer (Automation)

Up to £90K (Dependant on experience) + Bonus and Benefits Hybrid – 3 days per week in the office, 2 days WFH (Non-negotiable) St. James’s Place, London About the Client and Role This is an exciting opportunity for an experienced Automation Engineer to join a ...

Founding Applied AI Engineer (Agentic Systems)

This role is for one of our clients Location: London (On-site) Experience: 3–10 years Stage: Seed → Series B Role Type: Early hire / founding engineer Why This Role Exists You’ll build the next generation of production-grade AI systems — agents that ...

Electrical Design Engineer – Wind

We are looking for an Electrical Design Engineer to support offshore wind projects by delivering high-quality RMS (PSS/E) and EMT (PSCAD) studies, ensuring grid compliance and robust design. Key Responsibilities Develop and validate EMT and RMS models (WTG, PPC, HVAC/HVDC, S ...

DevOps Engineer CaaS

Für einen unserer Kunden in Bern suchen wir einen DevOps Engineer CaaS.Start: 27.10.2025Ende: 30.04.2026Ort: Bern - Hybrid nach OnboardingVollzeit Du agierst eigenverantwortlich, engagiert und kennst dich aus im DevSecOps Modell. • Service Request Managem ...

Linux System Engineer

Overview You’re an automation focused engineer, building complex linux based systems. This is a rare opportunity to step into the early stages of a groundbreaking product and define workflows from the ground up. If you thrive on solving complex problems and want to see your work make a real impact ...

Lead AI Engineer London (£110,000 + bonus)

Lead AI Engineer - London (£110,000 + bonus) 3 days onsite, 2 days WFH - Central London We’re supporting a global leader at the forefront of applied AI, working in close partnership with some of the world’s leading AI labs. Responsibilities Lead the design an ...

Infrastructure Engineer (Automation)

Up to £90K (Dependant on experience) + Bonus and Benefits Hybrid – 3 days per week in the office, 2 days WFH (Non-negotiable) St. James’s Place, London About the Client and Role This is an exciting opportunity for an experienced Automation Engineer to join a ...

Backend Engineer

Who We Are At Intropic , we’re building the future of financial intelligence, where deep market expertise meets the power of AI. Founded in London’s financial centre of Canary Wharf, we exist to transform complex data into clarity, precision, and action. Our culture is shaped by truth-seekin ...

Senior Backend Engineer (Rust) (m/f/d) London, England, United Kingdom

Affinidi is a technology company dedicated to changing data ownership for good. We empower businesses and individuals with control and ownership of their data, with a comprehensive approach to managing their holistic identity – accounting for all aspects of their digital footprint while ensuring pr ...

Technical Writer

Overview At Ultralytics, we relentlessly drive innovation in AI, building the world's leading YOLO models. We're looking for passionate individuals obsessed with AI, eager to make a global impact, and ready to excel in a dynamic, high-energy environment. Join our team and help shape the future of AI ...

Director of Product

Role Overview:We are looking for a Director of Product to lead product strategy, portfolio development, and lifecycle management for our digital health and life sciences software solutions. You will oversee product managers, define strategic priorities, and ensure our software products deliver s ...

Senior Lead Scala Engineer, Post Trade

Role Profile The Senior lead Scala Engineer will play a key role in the engineering and delivery of a critical market‑infrastructure service within the Equities platform, with a strong focus on AWS cloud‑native development. Reporting directly to the Senior Technical Delivery Engineer, Post Trade, ...

Senior Kotlin Engineer – FinTech, Equity, Remote

A leading fintech company in Greater London is seeking a Senior Kotlin Engineer to contribute to the development of innovative financial products. You will work with an exceptional team to solve complex engineering challenges while building elegant software solutions. The ideal candidate has strong commercial Ko ...

Senior Frontend Engineer Client SDK & UI Platform

A leading API platform company is seeking a Senior Software Engineer for their Client SDK (UI Platform) in Greater London. This role involves designing scalable front-end solutions, optimizing performance, and mentoring engineers. The ideal candidate has 5-10 years of experience, with deep knowledge in JavaScrip ...

Senior iOS Engineer: Craft Seamless Mobile Experiences

A leading technology company seeks a Senior Software Engineer to enhance its iOS mobile application. In this role, you will design, implement, and improve key features for millions of users while collaborating with cross-functional teams. Ideal candidates have 3+ years in iOS development, particularly with Swift ...

Impactful Full Stack Engineer | Fintech Platforms (London)

A global asset management firm is seeking a Front End / Full-Stack Engineer in London to enhance investment tools. This mid-senior level position entails designing scalable platforms and collaborating with cross-functional teams to deliver efficient software solutions. Ideal candidates will have strong front-end ...

Senior Lead Full Stack Engineer Cloud & AI UI

A leading global financial services firm in the United Kingdom is looking for a Senior Lead Software Engineer. You will join an agile team dedicated to building top-notch technology products that enhance business decisions. The role requires significant expertise in full stack development, especially with React ...

Remote Senior Blockchain Engineer Rust Core Node

A leading technology company is seeking a Senior Blockchain Engineer for a remote position available in Europe and UAE. The role involves developing software in Rust for the core node, writing tests, and assisting in architectural planning. Candidates should have at least 2 years of development experience with p ...

Founding Security Engineer: Scale Core Platform & Equity

A Series A cyber security startup in Greater London is seeking a Founding / Early Engineer to help scale and influence their core product. The ideal candidate will have over 5 years of commercial software engineering experience, a strong understanding of system design, and an ability to adapt across different pr ...

Senior Geotechnical Engineer – Underground Tunnels & Shafts

A global engineering firm in Greater London is seeking a Principal Geotechnical Engineer to lead the design of underground tunnels and shafts. The ideal candidate will have extensive experience in soft ground and hard rock conditions, and proficiency in relevant software. This position offers a hybrid work model ...

Senior Frontend Engineer — React UI for Revit Tools

A tech-focused design firm in London is searching for a frontend engineer to enhance their Revit tools. In this role, you will develop user-facing features like advanced search tools and ensure responsive, polished interfaces. Ideal candidates will have over 5 years of experience with JavaScript, TypeScript, and ...

IGA Senior Engineer/Architect SailPoint IAM Leader

A leading security consultancy in London seeks a Senior IGA Engineer or Architect with extensive experience in SailPoint and Identity Governance & Administration. This role involves designing and delivering IGA solutions, engaging with clients, and ensuring compliance with security requirements. Candidates shoul ...

Senior Product Engineer — Build AI Driven SaaS at Scale

A leading AI Customer Service company in Greater London is seeking a Product Engineer to solve customer problems with technical expertise. You will be part of a multidisciplinary team, writing Ruby code while enhancing a robust platform for millions of users. Ideal candidates should have over 5 years of software ...

Remote Go Backend Engineer Telco API & Microservices

A leading utility provider in Greater London is seeking a Software Engineer to join their Telco Experience Team. You will design and implement backend systems using Go, while collaborating with various stakeholders to deliver customer-focused features. This role emphasizes teamwork and effective communication, c ...

Staff Full Stack Engineer: Scale & Secure Cloud Platform

A technology company located in London seeks a Staff Software Engineer, Full Stack. This role requires developing robust features using Typescript & React while ensuring performance and quality. Candidates should have experience in AWS, REST APIs, and cloud-native environments. The ideal applicant must be autono ...

Civil Engineer Drainage & Infrastructure (Hybrid 3 Days/Week)

A multidiscipline design consultancy is seeking a Civil Engineer with 3 or 5 years of UK experience to join their Infrastructure team in Cardiff. The role involves working on various projects and using drainage design software. The company offers flexible working arrangements, 26 days of annual leave, and suppor ...

🚀 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