Software Engineer C Python Java Defence Tech Jobs in 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

Software Engineer

Software Engineer Gloucester, Gloucestershire £ - £ p/a with BUPA, bonus and full benefits 4 Day Work Week optionsLockheed Martin Rotary and Mission Systems (RMS) provides systems engineering, software development, training solutions and comp ...

Software Engineer

Software Engineer Gloucester, Gloucestershire £ - £ p/a with BUPA, bonus and full benefits 4 Day Work Week optionsLockheed Martin Rotary and Mission Systems (RMS) provides systems engineering, software development, training solutions and comp ...

Tech Accelerate Graduate Program Software Engineer

About the Role The Risk Solutions Technology Graduate Program is a 12-month experience with two six-month rotations. Participants gain hands-on experience in big data, AI, SRE, DevOps, and security engineering. They also get exposure to leading cloud platforms like AWS and Azure. The program focuses on ...

Tech Accelerate Graduate Program Software Engineer

About the Role The Risk Solutions Technology Graduate Program is a 12-month experience with two six-month rotations. Participants gain hands-on experience in big data, AI, SRE, DevOps, and security engineering. They also get exposure to leading cloud platforms like AWS and Azure. The program focuses on ...

Senior Software Engineer ATE

Senior Software Engineer (ATE) - Remote / Essex - ££ Competitive. A Senior Software Engineer with proven experience of developing software for automated test systems or hardware validation environments will technically lead ATE projects for an established High-Tech Company, delivering high-performance computing ...

Python Engineer

Salary: up to £200k base + bonusSummaryMy client is a leading global quant firm looking for a no-nonsense technologist to join one of their growing quant trading teams based in London. This team is one of the most experienced and profitable at the company.Collabo ...

Python Engineer

We have a fantastic new opportunity to join our team at Smartodds as a Python Engineer.  Based in North London, Smartodds provides in-depth research and analysis on sporting events around the world, supported by world-class, bespoke software platforms.We are proud of our collaborative and dyna ...

Python Engineer

Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the wor ...

Python Engineer

We have a fantastic new opportunity to join our team at Smartodds as a Python Engineer.  Based in North London, Smartodds provides in-depth research and analysis on sporting events around the world, supported by world-class, bespoke software platforms.We are proud of our collaborative and dyna ...

Python Engineer

Salary: up to £200k base + bonusSummaryMy client is a leading global quant firm looking for a no-nonsense technologist to join one of their growing quant trading teams based in London. This team is one of the most experienced and profitable at the company.Collabo ...

Python Engineer

Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the wor ...

Python Engineer

Role: Python EngineerLocation: Belfast, UK, Hybrid role but you must be available to work a minimum of 2 days per week in the Belfast office.The RoleYou will be key member for designing, developing, testing, and maintaining backend services and microservices that power enterprise applicat ...

Python Engineer

Title: Python Engineer Salary: Up to £60,000 Location: Bristol (On-site) Are you a Python Engineer looking to work on complex, high-impact data problems in a fast-moving and innovative sector? I'm working with a market-leading trading firm at the heart of the UK's energy transition. They use advanced forecastin ...

Junior C# Software Engineer Graduates Considered

Junior C# Software Engineer - Graduates ConsideredA fantastic opportunity for a Junior Software Engineer/Developer with proficient knowledge in C# to join an industry-leading software company with offices in Leicestershire. Offering excellent traini ...

Junior C# Software Engineer Graduates Considered

Junior C# Software Engineer - Graduates ConsideredA fantastic opportunity for a Junior Software Engineer/Developer with proficient knowledge in C# to join an industry-leading software company with offices in Leicestershire. Offering excellent traini ...

Back End (C# .NET) Software Engineer

**Work Schedule** Standard (Mon-Fri) **Environmental Conditions** Office **Job Description** As the world leader in serving science, we solve the world’s toughest problems, like giving cancer patients hope, ensuring water and food are safe, helping law enforcement sol ...

Senior Golang Engineer

Senior Software Engineer - Golang Information Security£650 per day - Inside IR35 3 days per week on-site, 2 days WFH 3 Month rolling contract up to 2 yearsJob SummaryThe Information Security team is responsible for developing services to find and mitigate security risks faced. We ...

Senior Backend Engineer Golang Security

Senior Software Engineer - Golang Information Security£(Apply online only) per day - Inside IR35 3 days per week on-site, 2 days WFH 3 Month rolling contract up to 2 yearsJob SummaryThe Information Security team is responsible for developing services to find and mitigate security ...

Lead C# Developer.Net Core Fintech

Lead C# Developer / Backend Software Engineer (C# .Net) Newcastle onsite to £150kDo you have expertise with backend C# combined with strong technical leadership skills?You could be joining a well-funded Fintech scale-up that is establishing a technical centre of excellence in the North Ea ...

Lead C# Developer.Net Core Fintech

Lead C# Developer / Backend Software Engineer (C# .Net) Newcastle onsite to £150kDo you have expertise with backend C# combined with strong technical leadership skills?You could be joining a well-funded Fintech scale-up that is establishing a technical centre of excellence in the North Ea ...

Principal Software Engineer C++ Robotics System

Principal Robotics / C++ Software EngineerLondon (Hybrid)Define how a complex, real‑world system scales — technically and organisationally.At sees.ai, we’ve built a system that enables unmanned aerial systems to carry out inspections of critical national infrastructure, m ...

Senior Software Engineer TV Playback (C++)

We design Spotify’s consumer experience—end to end, moment to moment, across every screen, platform, and partner integration. Our mission is to make listening feel effortless, personal, and joyful for billions of users around the world. That means turning complexity into clarity across hundreds of touchpoints—fr ...

Backend Software Engineer C#.Net FinTech

Backend Software Engineer / Developer (C# .Net Core) *Newcastle onsite* to £130k+Are you a backend focussed Software Engineer with a first class education looking for an opportunity to progress your career, working on complex and interesting systems in an impactful role?You could be joini ...

Software Engineer C#.Net Sports Trading

Software Engineer / Developer (C# .Net) London onsite to £90kAre you an experienced C#, backend focussed Software Engineer?You could be progressing your career in a hands-on, backend focussed Software Engineer role at a global sports trading firm, earning substantial bonuses.Wha ...

Senior Software Engineer C++, Embedded, Chromium

Teamwork makes the stream work. Roku is changing how the world watches TVRoku is the #1 TV streaming platform in the , Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our mission is ...

Software Engineer C#.Net AWS Finance

Software Engineer / Developer (C# .Net AWS) London / WFH to £80kAre you a Software Engineer with finance experience?You could be progressing your career at a boutique Asset Manager that specialise in Fixed Income markets and have multi-billion dollars under management.What's in ...

Senior Software Engineer, Embedded UI C++

Teamwork makes the stream work. Roku is changing how the world watches TVRoku is the #1 TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our missio ...

Lead Software Engineer C#.Net FinTech

Lead Software Engineer / Developer (C# .Net Desktop Application) Reigate / WFH to £100kDo you have expertise with C# desktop development, working on complex scalable systems?You could be progressing your career, in a senior, hands-on leadership role working on complex and technically chal ...

Senior Software Engineer, C/FICCO Data

Senior Software Engineer, C/FICCO DataJob LocationLondonEmployment typeRegularDepartmentTechnologyTargeted Start DateImmediateDRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets ...

Senior Software Engineer C#.Net FinTech

Senior Software Engineer / Developer (C# .Net Desktop Application) Reigate / WFH to £90kDo you have expertise with C# desktop development, working on complex scalable systems?You could be progressing your career, in a senior, hands-on leadership role working on complex and technically cha ...

Senior Software Engineer, Embedded UI C++

Teamwork makes the stream work. Roku is changing how the world watches TVRoku is the #1 TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our missio ...

Backend Software Engineer C++ Windows Finance

Backend Software Engineer / Developer (Windows C / C++, C#) London to £75k FTCAre you a skilled Backend Software Engineer with strong C++ skills?You could be progressing your career in a senior, hands-on role at a global market data provider.As a Backend Software Engineer you will ...

C++ Software Engineer – Core Dev Simulation

Salary: up to £200k base + bonusSummaryLeading global HFT firm is looking for a pragmatic C++ Engineer to join the Core Development team. Despite serving as the hub for managing the substantial operations across the UK, Europe and the Middle East, the London office retains ...

Software Engineer III (C#.NET / Angular)

Software Engineer III- (C# .NET / Angular) Are you ready for the next step in your engineering career? Would you enjoy working on our cutting-edge products?About Our Team:We are strengthening our software engineering team to modernise our existin ...

Backend Software Engineer C#.Net FinTech

Backend Software Engineer / Developer (C# .Net Core) *Newcastle onsite* to £130k+Are you a backend focussed Software Engineer with a first class education looking for an opportunity to progress your career, working on complex and interesting systems in an impactful role?You could be joini ...

Senior Software Engineer TV Playback (C++)

We design Spotify’s consumer experience—end to end, moment to moment, across every screen, platform, and partner integration. Our mission is to make listening feel effortless, personal, and joyful for billions of users around the world. That means turning complexity into clarity across hundreds of touchpoints—fr ...

Backend Software Engineer C++ Windows Finance

Backend Software Engineer / Developer (Windows C / C++, C#) London to £75k FTCAre you a skilled Backend Software Engineer with strong C++ skills?You could be progressing your career in a senior, hands-on role at a global market data provider.As a Backend Software Engineer you will ...

Senior Software Engineer, C/FICCO Data

Senior Software Engineer, C/FICCO DataJob LocationLondonEmployment typeRegularDepartmentTechnologyTargeted Start DateImmediateDRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets ...

Software Engineer C#.Net Sports Trading

Software Engineer / Developer (C# .Net) London onsite to £90kAre you an experienced C#, backend focussed Software Engineer?You could be progressing your career in a hands-on, backend focussed Software Engineer role at a global sports trading firm, earning substantial bonuses.Wha ...

Software Engineer C#.Net AWS Finance

Software Engineer / Developer (C# .Net AWS) London / WFH to £80kAre you a Software Engineer with finance experience?You could be progressing your career at a boutique Asset Manager that specialise in Fixed Income markets and have multi-billion dollars under management.What's in ...

Senior Software Engineer C++, Embedded, Chromium

Teamwork makes the stream work. Roku is changing how the world watches TVRoku is the #1 TV streaming platform in the , Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our mission is ...

C++ Software Engineer – Core Dev Simulation

Salary: up to £200k base + bonusSummaryLeading global HFT firm is looking for a pragmatic C++ Engineer to join the Core Development team. Despite serving as the hub for managing the substantial operations across the UK, Europe and the Middle East, the London office retains ...

Senior Software Engineer, Embedded UI C++

Teamwork makes the stream work. Roku is changing how the world watches TVRoku is the #1 TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our missio ...

🚀 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 C Python Java Defence Tech Jobs in United Kingdom Job Search Guide, Trends and Insights