336,533+ Software Engineers Java C C Python Javascript React Wideopen Cgi Jobs in UK — Top Companies Hiring July 2026

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

Backend Software Engineer C# Python Market Data

Backend Software Engineer / Developer (C# Python Data Lakes) London / WFH to £150k+Are you a data savvy Backend Software Engineer?You could be joining a Hedge Fund with complex work and substantial bonus earning potential.As a Backend Software Engineer you will join a growing team ...

Software Developer Market Data C#, SQL, Python

About the Role You will play a key role in developing high-performance backend systems and integrations that process and distribute real-time financial market data. Working within a modern technology stack, you’ll help build scalable APIs, data pipelines, and automation frameworks, ensuring seaml ...

Test Systems Software Engineer — Python & C Expert

Stars Arena is looking for a Test Systems Software Engineer based in Rochester, United Kingdom. The ideal candidate will have experience with programming languages such as LabVIEW, TestStand, C++, Python, and C#. Responsibilities include verification and configuration of software systems, and a proactive approac ...

Senior Software Engineer Python & C# | Semantic API

慨正橡扯 is looking for a Software Engineer III with expertise in Python and C#. In this role, you'll build advanced systems and maintain APIs while ensuring coding best practices. Ideal candidates will have strong knowledge in Agile methodologies, secure coding practices, and experience with data query la ...

Senior Embedded Security Software Engineer (C/Python)

A security solutions company in Cambridge seeks a Senior Software Developer skilled in C and Python for embedded systems. Responsibilities include designing and testing next-gen cryptographic Hardware Security Modules. Candidates should have a degree in a relevant field and experience in Linux environments. This ...

Software Engineer C++/Python in Didcot OxSource

Software Engineer – C++/Python Location: Didcot, United Kingdom Posted: 9 months ago Overview: An established software company based on Harwell Campus seeks a Software Engineer with strong experience developing software that interacts with hardware, including robotics, IoT ...

UAV Software Engineer (C++, Python, MATLAB) — Hybrid

MacStaff is seeking a Software Engineer to design and develop software solutions for UAV and drone projects in Swindon, Wiltshire. You will work collaboratively in a multidisciplinary engineering team while drawing on your expertise in C++, Python, and MATLAB. The ideal candidate will have experience in flight c ...

Senior Software Engineer (Python & C#) — Semantic Search

LexisNexis in Greater London is looking for a Software Engineer III to drive research, design, and software development within the LNIP intelligence core platform. You will create specifications and develop a semantic search API while implementing best coding practices and maintaining internal tools. T ...

Embedded Software Engineer (C++/Python) – Audio Tech

Mandarin Recruitment is offering an exciting opportunity for a Software Engineer in London. This role focuses on integrating software into consumer products, improving their performance and clarity in noisy environments. Candidates need to be fluent in Mandarin and have strong skills in C++ and Python 3. ...

Lead Software Engineer – C++/Python on Linux

Sivara GmbH in Garford is seeking a Software Engineering Team Lead to guide a team in C++ and Python development. This role involves collaborating with cross-functional teams and mentoring engineers while adapting to changing priorities in a fast-paced environment. The ideal candidate holds a relevant ...

Lead Scientific Software Engineer (C++/Python) – Hybrid

Sivara GmbH in Milton Heights is looking for a Lead Software Engineer to guide a team in cutting-edge software development using C++ and Python. You'll have mentoring responsibilities and work closely with cross-functional teams, ensuring effective communication across audiences. This role offers a hyb ...

Senior Software Engineer: Python/C++ & MATLAB Focus

Sivara GmbH is seeking a Senior Software Engineer to deliver complex software engineering projects. This hands-on role requires expertise in Python and experience integrating with C/C++ codebases. You will lead software maintenance and modernization, focusing on maintaining high engineering quality. Lo ...

Defence Tech Software Engineer Full‑Stack (C#/Python/C++, Rust, TS)

Switch Tech Talent in Newcastle is seeking a Software Engineer to develop scalable, high-performance applications in the defence tech sector. This role requires expertise in both backend and frontend development, with languages such as C#, Python, and React. The ideal candidate will have a relevant deg ...

Quantitative Developer (C#/Python)

We are looking for a talented senior full stack developer with experience in building risk systems and databases. In this role, you will be responsible for the development, maintenance, and support of critical risk systems that calculate P&L, Value-at-Risk, Scenarios and Risk exposures across our portfolio ...

Senior Software Engineer & Tech Lead (Java & C++)

Leap29 in the United Kingdom is seeking an experienced Senior Software Engineer / Technical Team Lead with expertise in Java and C++. In this hands-on leadership role, you will work closely with various teams to deliver high-quality software solutions in an Agile Scrum environment. The ideal candidate ...

Senior Software Engineer & Technical Lead (Java & C++)

Trades Workforce Solutions is looking for a Senior Software Engineer / Technical Team Lead in England. This hands-on leadership role focuses on developing high-quality software solutions while managing and mentoring a team. Candidates should have strong expertise in Java and C++ as well as experience working ...

C++ & Python Engineer – Crypto

Salary: up to £200k base + bonusSummaryLively, positive spirit of a start-up, with the stability of a longer-established player, this leading quant fund is looking for a highly proactive C++/Python engineer to join their rapidly expanding crypto division as they help shape ...

Quant Researcher – C++ / Python

SummaryOne of the world’s most prestigious hedge funds is looking for an outstanding Quant Researcher to join one of their systematic trading pods.This is a high-impact role, joining a small PM-led team that enjoys huge autonomy and are looking to grow their risk-taking. You’ll work c ...

C++ & Python Engineer – Crypto

Salary: up to £200k base + bonusSummaryLively, positive spirit of a start-up, with the stability of a longer-established player, this leading quant fund is looking for a highly proactive C++/Python engineer to join their rapidly expanding crypto division as they help shape ...

Software Engineer with C# Java and Azure

Job Description Software Engineer with C# or Java and AzureMust have a bachelor's degree in computer science, software engineering, or a related field is required.Must have at least 4 to 6 years of progressively complex experience in a directly related area, during w ...

Software Engineer with C# Java and Azure

Job Description Software Engineer with C# or Java and AzureMust have a bachelor's degree in computer science, software engineering, or a related field is required.Must have at least 4 to 6 years of progressively complex experience in a directly related area, during w ...

Azure Software Engineer (C#/Java) – Hybrid London

A technology consultancy firm is seeking a Software Engineer highly proficient in C# or Java and Azure. The role requires a bachelor's degree and 4-6 years of experience in software development, particularly in Azure integration and API management. The candidate should excel in problem-solving and communication, ...

Software Engineer, Video Games Android (Java & C++)

We are looking for a skilled software engineer to develop high-performance video games for Android and Linux platforms. Main Responsibilities Maintain game code in C++ for Android and Linux targets Write and maintain Linux shell scripts (Bash) for build, deployment and too ...

Software Engineer Java/C | Build Scalable Systems

Veeqo Limited is seeking a Software Development Engineer to join their team in Swansea, United Kingdom. This full-time role requires experience in professional software development and proficiency in modern programming languages such as Java and C. The position offers competitive compensation and involves workin ...

Software Engineer with C# Java and Azure

Software Engineer with C# or Java and Azure Must have a bachelor's degree in computer science, software engineering, or a related field is required. Must have at least 4 to 6 years of progressively complex experience in a directly related area, during which both professional and technical c ...

Senior Java & C++ Software Engineer — Hybrid UK

A global energy industry leader in Abingdon is looking for a Software Developer to design and develop complex applications. The ideal candidate has over 4 years of experience in Java and C++ development, familiar with Agile methodologies, and excellent problem-solving skills. This position requires hybrid work a ...

Front Office FX Software Engineer (C#/Java)

Crédit Agricole Group is seeking a Developer in Greater London. The successful candidate will work closely with traders and operational staff, enhancing front-office systems for foreign exchange. Candidates should have experience in C# or Java, some SQL knowledge, and a strong interest in financial markets. Resp ...

Software & DevOps Engineer in Southampton Matchtech

Software & DevOps Engineer Southampton, United Kingdom Posted about 1 year ago Tech stack DevOps C Python JavaScript HTML5 Linux Java Bash Responsibilities Promote ...

Software Engineer in Cheltenham IO Associates

Software Engineer Cheltenham, United Kingdom Posted 9 months ago Tech Stack JavaScript React Java C TypeScript Linux JUnit unit testing Candidate Requirements Proficient in ...

Software C# Engineer

Job Description As a Software Engineer within our Agile delivery team, you will move beyond standard CRUD applications to solve complex network and real-time communication challenges. You will lead the development of expansion products that interface with 3GPP-compliant User Equipment (UE ...

Software Developer C#

Benefits 25 days annual leave, plus flexible bank holidays and the opportunity to buy additional days Enhanced workplace Pension scheme - opt-in salary sacrifice scheme Life Insurance (3x annual salary) Employee Assistance Programme (EAP) and workplace wellbein ...

C/C++ Software Engineer – Core Dev

Salary: up to £200k base + bonusSummaryLeading global HFT firm is looking for a pragmatic C/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 retain ...

Senior C/C++ Linux Software Engineer

This established technical consultancy develops advanced software and hardware for government and commercial sector clients. Due to continued success, they are seeking an accomplished C/C++ and Linux software engineer to join their team.Varied multidisciplinary projects mean that you could be working o ...

Senior Embedded Software Engineer (C/C++)

Overview Position Summary:We are seeking a Senior Embedded Software Engineer with deep expertise in motion control systems, real-time embedded software, and low-level firmware development. This role focuses on designing, developing, and optimizing firmware for microcontrolle ...

C/C++ Software Engineer – Core Dev

Salary: up to £200k base + bonusSummaryLeading global HFT firm is looking for a pragmatic C/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 retain ...

Contract Semiconductor Software Engineer (C++/C#)

A leading technology company in the UK is seeking a software engineer with experience in the semiconductor industry for a 6-month contractual role. Responsibilities include programming hardware interfaces and developing applications related to equipment control. The ideal candidate should possess strong skills i ...

Linux Server Software Engineer C / C++

Linux Server Software Engineer - C / C++ This range is provided by Octagon Group. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Octagon Group RF & Power Electronics Re ...

Senior C/C++ Linux Software Engineer

Develop your consultancy and software engineering skills with varied high tech projects This established technical consultancy develops advanced software and hardware for government and commercial sector clients. Due to continued success, they are seeking an accomplished C/C++ and Linux software en ...

Senior C/C++ Linux Software Engineer

Job Overview This established technical consultancy develops advanced software and hardware for government and commercial sector clients. Due to continued success, they are seeking an accomplished C/C++ and Linux software engineer to join their team. Responsibilities Varied mult ...

Senior Software Engineer (C#, .Net, C++)

Company Overview Filmetrics, a KLA company, is the market leader in 3D optical surface profiling and thin-film thickness measurement systems. Filmetrics products combine innovative hardware solutions with intuitive, easy to use software, tied together with a pioneering online platform. Filmetrics ...

Senior Software Engineer (C#, .Net, C++)

Filmetrics, a KLA company, is the market leader in 3D optical surface profiling and thin-film thickness measurement systems. Filmetrics products combine innovative hardware solutions with intuitive, easy to use software, tied together with a pioneering online platform. Filmetrics is part of KLA Corporation ...

Software Development Lead, C# / C++, Nottingham

Software Development Lead, C# / C++ – Nottingham Are you an experienced software engineering leader ready to take ownership of a high‑performing development team, shape technical delivery, and play a key role in building complex, business‑critical platforms? This could be the next step in your car ...

Embedded Software Engineer – C/C++, RTOS

Ultra Electronics Group is seeking a Software Engineer to define, design, and develop embedded software within a dynamic team. Role involves working on various development programs, implementing software per project guidelines, and knowledge of security clearances is necessary. Applicants should posses ...

Lead Embedded Software Engineer (C/C++)

Racelogic Ltd. is seeking a Senior Embedded Software Engineer to lead the development of embedded software for their products. This role involves C/C++ software design, project planning, and providing technical leadership. Ideal candidates will have a Bachelor’s degree in Electrical Engineering and significan ...

Lead C++ / Java Developer

The Senior Software Engineer is a hands‑on individual contributor responsible for designing, building, and operating mission‑critical FX market infrastructure and matching platforms using C++ and Java. The role focuses on low‑latency, high‑throughput distributed systems with strict availability, resiliency ...

Senior C++ / Java Developer

This is an individual contributor role responsible for the design, development, and delivery of high‑quality software solutions using C++ and Java within a defined product, platform, or client solution area. The role emphasizes hands‑on engineering, strong ownership of medium‑to‑large technical components, ...

Lead C++ / Java Developer

Requirements Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience Strong hands‑on experience in both C++ and Java, delivering production‑grade systems 10+ years of software engineering experience as a senior individual contributor P ...

Senior C++ / Java Developer

Requirements While not an architect or people manager, the role requires strong technical judgment, mentoring of junior engineers, and meaningful contribution to solution design and delivery excellence Bachelor’s degree in Computer Science, Engineering, or equivalent practical exp ...

Lead C++ / Java Developer

Role Summary The Lead Software Engineer is a hands‑on individual contributor responsible for designing, building, and operating mission‑critical FX market infrastructure and matching platforms using C++ and Java. The role focuses on low‑latency, high‑throughput distributed systems with strict ava ...

C# Software Engineer

Job Title: C#/.NET Software EngineerLocation: South CambridgeshireSalary: Up to 70,000Working Pattern: Hybrid 2 days in office This is a brilliant opportunity for a C#/.NET engineer to join a fast-growing technology company whose software is used by sc ...

🚀 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

    Buffering Video...

    Software Engineers Java C C Python Javascript React Wideopen Cgi Jobs in United Kingdom Job Search Guide, Trends and Insights