Software Engineer C Python Java Defence Tech Jobs in UK

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Senior Software Engineer, Unified Platform — Global Market Data

A financial services company in London is looking for a Senior Software Engineer to join their Unified Platform team. The role involves developing innovative systems to support research and trading, requiring over 5 years of software development experience and strong skills in Java and Python. The engineer will ...

Senior Java Engineer – AI Driven Data Platform

Deepstreamtech is seeking a Senior Java Engineer in Greater London to lead the development of an Index platform for the FTSE-Russell Index Business. Ideal candidates will have over 10 years of backend software engineering experience, including expertise in Java and Python, and will collaborate with teams globall ...

C# Engineer (.NET)

About usIn The Pocket is a leading European digital product studio. We are a complete delivery organisation that defines, designs & ships digital products, strategies and software. We’re a lively bunch that’s up for any challenge: global cloud-based platforms, large audience apps, medical devices, banking ...

Specialist C++ Engineer

Join to apply for the Specialist C++ Engineer role at Magnopus Get AI-powered advice on this job and more exclusive features. Magnopus is on a mission to bridge the physical & digital divide with our groundbreaking set of client applications powered by the Connected Spaces Pla ...

C# / .NET Engineer

About the job C# / .NET Engineer (Commodities / Derivatives) | £75k - £95k | London (Hybrid) We’re looking for a strong C# / .NET Engineer to join a Back Office IT team within a financial markets environment. This role combines hands-on development ...

Core Engineer (C++)

Are you looking to work on problems that genuinely test the limits of performance, scale, and engineering craft? We are building a small, elite team of systems engineers to design and evolve the core infrastructure that powers a highly sophisticated trading platform. This i ...

Remote C++ Tech Lead – VoIP & Telephony Systems

Intermedia Intelligent Communications is seeking a Technical Lead specializing in C++ and Networking to oversee a small team of engineers. Key responsibilities include leading Scrum activities, enforcing code review standards, and guiding engineers on complex VoIP and PBX systems. Candidates should possess exper ...

C&I Engineer

An innovative and sustainably focused fuel storage company with a global presence are looking for a skilled and experienced C&I Engineer to join their team in the South East region! They are passionate about people and ensuring that the development of their employees is at the heart o ...

Java Developer eSC or eDV Cleared

**Introduction**At IBM CIC, we provide technical and industry expertise to a wide range of public and private sector clients in the UK.A career in IBM CIC means you’ll have the opportunity to work with leading professionals across multiple industries to improve the hybrid cloud and AI journey for the ...

Principal Full Stack Engineer & Tech Leader (Cloud)

A leading consultancy firm in the UK is seeking an experienced Principal Full Stack Engineer to lead L2/L3 support teams. The ideal candidate will have expertise in Java, Python, Node.js, or C#, alongside substantial cloud architecture experience (AWS or Azure). This role emphasizes technical leadership, mentori ...

Senior Full Stack Engineer – Cloud & Incident Response Lead

A technology firm in Leeds is looking for a Senior Full Stack Engineer to support and enhance a diverse range of applications. You will handle business-as-usual operations and contribute to complex incident management. The ideal candidate should have strong knowledge in Java, Python, NodeJS, or C#, and experienc ...

Senior Full Stack Engineer – Cloud & Incident Response Lead

A technology firm in Leeds is looking for a Senior Full Stack Engineer to support and enhance a diverse range of applications. You will handle business-as-usual operations and contribute to complex incident management. The ideal candidate should have strong knowledge in Java, Python, NodeJS, or C#, and experienc ...

Principal Full Stack Engineer & Tech Leader (Cloud)

A leading consultancy firm in the UK is seeking an experienced Principal Full Stack Engineer to lead L2/L3 support teams. The ideal candidate will have expertise in Java, Python, Node.js, or C#, alongside substantial cloud architecture experience (AWS or Azure). This role emphasizes technical leadership, mentori ...

C++ Engineer x2

anton changed the spec. = requiring C++ now 5 to 10 yrs 3 - 500k We are not just building a model library, but an entire engine to run pricing, risk, and other valuation services. This involves significant engineering work. Experience in software design and implementation will b ...

Remote Java Software Developer – 12m FTC

A forward-thinking technology consultancy is seeking a Java Software Developer for a 12-month fixed-term remote contract, requiring experience within the UK public sector. The role involves developing features for an outbound notification platform and upgrading existing applications. Essential skills include str ...

Software Engineering Lead Java AI FinTech

Software Engineering Lead Java AI - FinTech This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Software Engineering Lead (Java AI) London / WFH to £140k Are you a technical leader w ...

Junior/Mid Level Java Software Developer

Junior/Mid-Level Java Software Developer Are you a Java Developer with a passion for modern development techniques and clean code looking to make an impact? Fruition Group are supporting a rapidly growing fintech business looking to make a home in Leeds. This company provides a digital platform t ...

Java Software Developer — Transform Digital Services

A growing technology consultancy in the UK is seeking a Software Developer (Java) to enhance their digital services. This role involves collaboration within agile teams to design, build, and maintain innovative applications. The ideal candidate will have excellent Java skills and a strong commitment to best prac ...

Java Developer: Travel & Deploy Warehouse Software

TGW Northern Europe is seeking a Java Developer to work closely with cross-functional teams to deliver innovative Warehouse Control Software solutions. In this role, you will implement and enhance existing features, maintain software systems, and ensure project delivery timelines are met. The ideal can ...

Java Software Developer (Contract inside IR35)

Java Software Developer (Contract inside IR35)Location: Flexible / HybridJob Type: Full-timeContract 3-6 Months (contact to hire options)Cooper Lomaz are recruiting for an experienced Software Developer III to join a growing, forward-thinking organisation delivering innovative customer an ...

Computational Electromagnetics Engineer — HPC Solvers

Metrea is seeking a full-time Computational Electromagnetics Engineer to develop and run electromagnetic solvers, primarily for applications in Aerospace and Defence. This position requires a strong background in scientific computing with experience in C/C++ and Python, and a deep understanding of Maxwell's equa ...

Principal Software Engineer

Location: Portsmouth with a hybrid working model. Hours: Full time. Salary: From £65,000 but negotiable, depending on experience. The Role Sirius Digital is a rapidly growing software and data science consultancy that delivers high‑quality end‑to‑en ...

Senior Software Architect & Tech Lead

A high-growth agile unit within the global STARLIMS ecosystem. STARLIMS provides leading Laboratory Information Management System (LIMS) solutions that have served customers around the world for over 30 years. Our solution suite helps labs: Improve the reliability of sampling ...

Senior Tech Lead & Software Architect

A technology firm in Witney is seeking a Software Engineer to lead the full lifecycle of product development. Responsibilities include guiding technical activities, managing a team, and ensuring best practices in software development. Candidates should have 7+ years of experience, significant knowledge of public ...

Software Engineering Lead/Tech Optimization

Software Engineering Lead/Tech Optimization Do you have a passion for upskilling and training people? Are you collaborative? About the Business: LexisNexis® Risk Solutions provides customers with solutions and decision tools that combine public and industry‑specific cont ...

Lead DevOps Engineer

Requirements Demonstrable AWS and Kubernetes (EKS) expertise Hands‑on experience with Terraform, GitLab CI and Bash/Python Orchestration and monitoring tools – Istio, Datadog, Grafana, Prometheus, ELK 6+ years in DevOps or Platform Engineering roles in a lead r ...

Lead DevOps Engineer

Requirements Demonstrable AWS and Kubernetes (EKS) expertise Hands‑on experience with Terraform, GitLab CI and Bash/Python Orchestration and monitoring tools – Istio, Datadog, Grafana, Prometheus, ELK 6+ years in DevOps or Platform Engineering roles in a lead r ...

Principal C/C++ Embedded Systems Engineer

A leading developer in aerospace and defence is seeking an experienced Software Engineer to join their team in Cheltenham. The successful candidate will leverage their C++ expertise to develop custom plugins for the EAK GVA platform, participate in design and code reviews, and engage in debugging within embedded ...

Lead Software Engineer

Principal Software Engineer - TypeScript, JavaScript, Python, C++, Linux, IoT, K8 Southampton (Onsite) £75,000 + generous pension & benefits Are you an experienced Software Engineer who thrives on solving real-world problems with cutting-edge technology? This is an opportu ...

Lead Software Engineer

Principal Software Engineer - TypeScript, JavaScript, Python, C++, Linux, IoT, K8 Southampton (Onsite) £75,000 + generous pension & benefits Are you an experienced Software Engineer who thrives on solving real-world problems with cutting-edge technology? This is an opportu ...

API Developer AI Trainer in Leeds DataAnnotation

Responsibilities You will be responsible for coming up with diverse problems and... Qualifications A bachelor1s degree (completed or in progress) is also required. Proficiency in additional programming languages/frameworks such as TypeScript, C, C#, C++, HTML/CSS, React, Go, Java, ...

Fintech Python Web Engineer Own Projects & Impact

Java Script Works is seeking a Python Web Engineer for a major global financial exchange located in Greater London. The ideal candidate will have experience with Python-based MVC frameworks and front-end technologies including JavaScript, HTML5, and CSS3. Familiarity with Django and React is advantageous. The ro ...

Automation Engineer

Senior Automation Engineer Location: Outskirts of Edinburgh (flexible work pattern and compressed week) Contract: 12 Month FTC Hours: 37 hours per week Overview We are working with a le ...

Automation Engineer

Senior Automation EngineerLocation: Outskirts of Edinburgh (flexible work pattern and compressed week)Contract: 12 Month FTCHours: 37 hours per weekOverviewWe are working with a leading advanced manufacturing and defence organisation seeking a Senior Automation Engineer to deliver innovat ...

Senior Software Engineer

This range is provided by Inara. 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 Inara Scaling Careers & Businesses in Tech @inara Role: Senior Software Engine ...

Senior Software Engineer Remote First AI Travel Tech

A digital travel technology company in the UK is seeking a Senior Software Engineer to design scalable systems and enhance user experiences. The role offers remote-first flexibility and collaboration within a small team. The ideal candidate has strong experience with TypeScript, Node.js, and React, and will expl ...

Senior Software Engineer – Remote AI Driven Crime Tech

A leading software company in the UK seeks a Senior Software Engineer to develop innovative solutions to combat financial crime. This remote-first role involves designing and shipping features for an AI-powered platform used by major financial institutions. Ideal candidates should have experience in distributed ...

Senior Software Engineer, Trading Tech (Query Stack) Remote

Jobgether is seeking a Senior Software Engineer for Trading Technology in the United Kingdom. This fully remote role requires 10+ years of experience in Java development, focusing on building and maintaining scalable systems for a high-performance trading environment. You'll design robust APIs and collaborate ac ...

Senior Software Engineer – Remote AI Driven Crime Tech

A leading software company in the UK seeks a Senior Software Engineer to develop innovative solutions to combat financial crime. This remote-first role involves designing and shipping features for an AI-powered platform used by major financial institutions. Ideal candidates should have experience in distributed ...

Senior Software Engineer Remote First AI Travel Tech

A digital travel technology company in the UK is seeking a Senior Software Engineer to design scalable systems and enhance user experiences. The role offers remote-first flexibility and collaboration within a small team. The ideal candidate has strong experience with TypeScript, Node.js, and React, and will expl ...

Senior Software Engineer, Trading Tech (Query Stack) Remote

Jobgether is seeking a Senior Software Engineer for Trading Technology in the United Kingdom. This fully remote role requires 10+ years of experience in Java development, focusing on building and maintaining scalable systems for a high-performance trading environment. You'll design robust APIs and collaborate ac ...

Defense Grade C++ Engineer: Build Secure Systems

A leading technology company in Gloucester seeks a C++ Software Engineer to design and implement high-performance software solutions for mission-critical defence operations. You will collaborate with cross-functional teams towards achieving operational excellence. Ideal candidates have strong C++ experience and ...

SC Cleared Software Engineer | Hybrid, Edge & Cloud

CBSbutler Ltd. is seeking a Software Engineer to work in Romsey, Hampshire, with a hybrid model (2 days onsite). The role involves delivering cutting-edge software solutions and contributing to operational systems for complex challenges. You should have a degree in a STEM subject, and experience with programming ...

Java Developer eSC or eDV Cleared

Introduction At IBM CIC, we provide technical and industry expertise to a wide range of public and private sector clients in the UK. A career in IBM CIC means you’ll have the opportunity to work with leading professionals across multiple industries to improve the hybrid cloud and AI journey for t ...

Junior Technical Consultant ( Java or C# ) Learn ETRM

Junior Technical Consultant (Java / C#) – Energy/Commodities Trading | London Kick-start your career in one of the most specialised and high-value areas of technology and business: Energy & Commodities Trading and Risk Management. As a Junior Technical Consultant, you’ll undertake ...

Front Office FX IT Developer (Java/C#) – London

Crédit Agricole SA is seeking a Developer based in London, UK. The role involves enhancing front-office systems for foreign exchange trading, managing project deliveries, and automating processes. Candidates should have a strong desire to learn, excellent communication skills, and experience in C# or Java. A rec ...

FX Front Office IT Developer — Java/C# (London)

A leading banking institution in London is searching for a Developer to work closely with front office users in foreign exchange trading. Candidates should have experience with Java or C# and a strong desire to learn about financial services. Responsibilities include enhancing front-office systems, managing dev ...

Front Office FX Developer (C#/Java, SQL, Trading)

Crédit Agricole CIB is looking for a Developer with experience in C# or Java to enhance its front-office systems in the financial services sector. The role involves collaborating with users such as traders and risk analysts, and responsibilities include developing systems for foreign exchange trading, managing v ...

Software Engineer

Location: Stevenage | Hybrid, typically 3-5 days onsite per week Please note for this role, successful applications will be required to hold either British Citizen or Dual Nationality with British citizenship. A leading defence engineering business is hiring a Senior Software Engineer to de ...

Senior Software Developer

Senior Software Engineer - £75,000 (DoE) Title: Senior Software Engineer (C++) Client: Graphics Tech Location: Cambridge Salary: Up to £75,000 (DoE) This is an opportunity for a Senior Software Engineer to join a small team leading a niche ...

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