1 to 25 of 84 Senior Software Engineer Jobs in the South East

CONTRACT SENIOR SOFTWARE ENGINEER - eDV CLEARED NEW CONTRACT JOB OPPORTUNITY AVAILABLE WITHIN A LEADING NATIONAL SECURITY COMPANY FOR A SENIOR SOFTWARE ENGINEER WITH eDV CLEARANCE Contract job opportunity for a Senior Software Engineer Globally leading defence/cyber security company £500 - £750 per day (inside and outside IR35 roles available) London … based organisation in an easily accessible location Contract Senior Software Engineer To apply please call or email WHO WE ARE? We are recruiting multiple contract Senior Software Engineers to work with various clients in London ranging from R&D companies, Multi-National Consultancies to SME's and product based companies. Due to the nature of … the work these clients do, you must hold enhanced DV Security Clearance. WHAT WILL THE SENIOR SOFTWARE ENGINEER BE DOING? As a Senior Software Engineer, you will work with an experienced agile team to design and deliver packages of bespoke work, work development teams and liaise with customers. You will work through the entire More ❯

SENIOR SOFTWARE ENGINEER - eDV CLEARED NEW PERMANENT JOB OPPORTUNITY AVAILABLE WITHIN A GLOBALLY LEADING NATIONAL SECURITY COMPANY FOR A SENIOR SOFTWARE ENGINEER WITH eDV CLEARANCE Permanent job opportunity for a Senior Software Engineer Globally leading defence/cyber security company Salary up to £100,000 plus clearance bonus London based organisation … in an easily accessible location Permanent Software Engineer To apply please call/or email WHO WE ARE? We are recruiting Senior and Lead Software Engineers to work with a multi-national, industry leading National Security client in central London. Due to the nature of the work you must hold enhanced DV Security Clearance. WHAT WILL … THE SENIOR SOFTWARE ENGINEER BE DOING? As a Senior Software Engineer, you will work with an experienced agile team to design and deliver packages of bespoke work, work development teams and liaise with customers. You will work through the entire software development life cycle from requirements capture to R&D, implementation to automation. More ❯

Senior Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? scaling FinTech, revolutionising the industry Location : Hybrid - 1-2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. … The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Software Engineer - Responsibilities Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Optimize components for maximum performance across a vast array of web- capable devices and … the highest quality. Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Software Engineer - Experience Required Proven experience as a Full Stack Engineer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda More ❯

Senior Software Engineer - Remote UK - £85000 What is in it for you? As a talented Senior Software Engineer you can expect: A supportive and adaptive culture Access to a structured training and career progression plan Opportunities to take the lead on critical projects and enhance your career Great salary - Up to £85,000 base … and Package (neg for the right person) We are helping an innovative technology business scale their Software team in in the UK. Their software powers some of the worlds leading consumer brands across the digital commerce and retail experience software space. Due to continued growth and demand for their products they now urgently need a Senior Software Engineer to join their team. Your role will be to focus mainly on backend engineering within their AI product suite. This role would suit a Senior Software Engineer who has a background in AI engineering or a deep passion for AI. This role is Remote within the UK - the team do meet in More ❯

We're looking for a Senior Software Engineer to join our team and take our technology and your career into new territories! MBDA is a great a place to learn about the company's entire product portfolio, whilst embracing the change to DevOps and other innovative technologies! Job Title: Senior Software Engineer Salary … paternity leave, neonatal leave and fertility testing and treatments. Facilities : Fantastic site facilities including subsidised meals, free car parking and much more. The opportunity: We're looking for a Senior Software Engineer to join our team and take our technology and your career into new territories! Test Software UK collaborate across Electronic Engineering, our Test Centre … of Excellence and Software Engineering to deliver the MBDA UK test capability. Our mission as a function is to facilitate robust and timely test of missile systems and ensure MBDA continues to provide a decisive military capability for our home nations and their allies. Spanning a diverse portfolio of work packages, Test Software UK directly influences the company More ❯

Senior Software Engineer/Full Stack Developer (.Net Core JavaScript React) Leatherhead to £70k Do you enjoy working with a range of tech across the full stack? You could be joining one of Britain's largest and longest standing Microsoft partners and technology consultancies, working on a range of projects and progressing your career. As a Senior Software Engineer you'll join a small team, designing and developing a range of applications with a focus on backend development (70/30), for eCommerce clients. You'll be using a range of modern technologies including C# .Net Core, JavaScript/TypeScript and React within a DevOps, Azure, SaaS environment. There currently breaking up monolith applications … Docker You're familiar with Azure cloud based services, microservices, DevOps environments You're collaborative and pragmatic with great communication skills What's in it for you: As a Senior Software Engineer you will earn a competitive package: Salary to £70k + Bonus Pension, Life Assurance, Vitality Healthcare 25 days holiday + Christmas closure Long service awards More ❯

Senior Software Engineer We’re supporting a pioneering technology company who are building some of the most advanced systems in the world. They’re now looking for a Senior Software Engineer to join their growing team and play a key part in developing cutting-edge solutions. This is a fantastic opportunity to work on … unique challenges that will push the boundaries of what’s possible in computing. You’ll collaborate with highly skilled engineers and scientists, developing the software that drives complex hardware platforms and contributes to world-class innovation. The role As a Senior Software Engineer, you’ll work across a variety of technical areas, including: Designing and extending More ❯

Senior Software Engineer Location: Surrey Salary: c.£75,000 Overview An excellent opportunity for a Senior Software Engineer to join a leading technology business developing high-performance electronic and communication systems for use in regulated, safety-critical environments . We're seeking an experienced embedded software engineer who has worked on human … interfaced equipment —ideally within telecommunications, avionics, defence, or other regulated sectors —and is confident taking projects through the full software lifecycle from requirements analysis to release . Purpose of the Role To design, develop, test, and deliver high-quality embedded software to agreed schedules and standards, supporting new and existing product developments. Key Responsibilities Design, code, debug, test … and maintain embedded software in C. Develop and implement application logic, device drivers, communication protocols, and human-machine interfaces. Work closely with hardware and software engineers to deliver product features and ensure seamless integration. Take responsibility for requirement analysis, software design, documentation, and traceability in line with company and regulatory standards. Participate in peer reviews, continuous improvement More ❯

Are you a Senior Embedded Software Engineer? Do you have experience in writing and testing code in Embedded C, C++ and Python? Are you confident working with products involving motor or motion control? If so, an exciting permanent opportunity has arisen to join a company specialising in the design and manufacture of complex electromechanical devices and machines. … Senior Embedded Software Engineer Permanent OpportunityASAP StartMonday to Friday (Flexible start/finish times & hybrid working available)Location: Andover Company Info: The business is a respected, family-run business that’s been transforming lives for over a century. This leading UK manufacturer designs and builds high-quality stairlifts that help people regain their independence and stay in … the homes they love. If you’re looking to make a difference and work on developing new technologies for their sector, then this could be the company for you. Senior Embedded Software Engineer - Job Description: Design, write, test and deliver embedded software solutions for motor controller products, using languages including C, C++ and Python. Maintain and More ❯

Step into the future of defence technology with an exceptional opportunity as a Senior Software Engineer. If you're passionate about innovation and looking to make a real impact, this role offers you the chance to work on cutting-edge projects that redefine what's possible in the industry. Join a forward-thinking team that values excellence, creativity … and career development. What You Will Do: Define, design, develop, and test embedded and application software to deliver high-quality solutions on time. Apply object-oriented design techniques to ensure code reusability and integration with testing frameworks. Review system design artefacts to derive software requirements and architecture that meet high-level system needs. Use modelling tools like RSA … and EA to document and maintain software designs, ensuring accuracy for code generation. Contribute to bids and proposals by generating technical estimates and identifying associated risks. Propose and implement improvements in tools, processes, and techniques to enhance software development efficiency. What You Will Bring: A degree in an engineering, mathematical, or science-based subject, or equivalent experience. Proficiency More ❯

Senior Software Engineer required by a high-tech company located in Fareham. Due to continued success they are looking to grow their software team developing products for Android platforms. The successful Senior Software Engineer is likely to have a degree in Computer Science or similar subject and commercial experience developing Android applications using More ❯

Job title: Senior Embedded Software Engineer Location : Maidenhead, Berkshire Salary Range: £60,000 - £80,000 The Malloy Aeronautics Team: Malloy Aeronautics Limited specializes in the development of heavy lift unmanned air vehicles (UAVs) for both civilian and military uses. Located in Berkshire, our operations are notable for their focus on in-house design and manufacturing. This vertical … we control the production of most aircraft components on-site, enhancing our ability to innovate and maintain high standards across all stages of development. About The Role: As a Senior Embedded Software Engineer, you will be reporting to the Software Engineering Manager as an embedded systems developer . Responsible for integration of hardware and software … in the UK. We seek someone looking to support in the development and verification of flight control software. You will be supporting in the delivery of engineering outputs including software requirements, software design, software implementation and software testing. Applying your knowledge and principles of engineering to assist in the implementation of aircraft control systems to a More ❯

Senior Software Engineer – TypeScript – GovernmentWe’re looking for a Senior Software Engineer to design, build, and deliver secure, scalable digital services for the UK public sector. You’ll develop cloud-native systems using TypeScript, AWS, and modern frameworks, ensuring high performance, resilience, and compliance.Key Responsibilities Develop and maintain applications using TypeScript with Express or … Mocha, Jest, AWS SAM). Apply security and performance best practices throughout development. Essential Skills & Experience Experience in government or GDS-aligned projects. 5+ years’ experience in large-scale software engineering. Strong in TypeScript, JavaScript, Express/Fastify, and AWS. Expertise in Terraform, IaC, and microservice architectures. Hands-on experience with CI/CD, Docker, and automated testing. Strong More ❯

Job Description Senior Software Engineer – AI Native Platforms Function: Tech Location: Hybrid, London or Peterborough office Curious about what's next? So are we. Join Compare the Market and help to make financial decision making a breeze for millions. At Compare the Market, we're a purpose-driven business powered by tech and AI. We're building … you love accountability, embrace challenge, and want to make a real difference, you'll fit right in. We'd love you to be part of our journey: As a Senior Software Engineer (AI Engineering), you'll take a leading role in designing and implementing agent-ready systems and developer tools. You'll build production-grade software More ❯

Job Title: Senior Software Engineer Location: London (Hybrid: 2-3 days/week in office) Contract Type: Permanent Salary: up to £100,000(DOE) About the Role We're looking for a skilled and experienced Senior Software Engineer to join a fast-paced, product-focused team building innovative technology that delivers real impact. You … where you'll be empowered to make technical decisions, mentor others, and help shape the future of a platform used by thousands. Key Responsibilities Design, build, release, and monitor software systems end-to-end Collaborate with product, design, and data teams to deliver user-focused features Provide technical leadership and mentorship to other engineers Use data to inform decisions More ❯

We're looking for a Senior Software Engineer to join our team and take our technology and your career into new territories! MBDA is a great a place to learn about the company's entire product portfolio, whilst embracing the change to DevOps and other innovative technologies! Job Title: Senior Software Engineer Salary More ❯

Senior Software/Platform Engineer (DevOps) | AI-driven Healthcare | Hybrid (Oxford) - Contract Role I’m excited to be supporting a pioneering healthtech company that’s redefining how cardiovascular disease is detected and managed - using advanced AI and cloud-based diagnostics to save lives. 💙 They’re looking for a Senior Software/Platform Engineer (open … to candidates from DevOps, software engineering, or cloud backgrounds) to help scale their secure, high-performance SaaS platform used by clinicians and healthcare systems worldwide. What makes this special: 👉 You’ll work on tech that genuinely impacts patient outcomes. 👉 Join a mission-led team combining AI, medical imaging, and cloud engineering. 👉 Modern stack including Python, TypeScript, Docker, Azure, and … Kubernetes. 👉 Strong culture of innovation, continuous delivery, and collaboration. What you’ll bring: 👉 Solid software engineering skills (Python/TypeScript/JS). 👉 Experience building and deploying cloud-native applications. 👉 CI/CD pipeline expertise and IaC experience. 👉 A passion for quality, reliability, and secure delivery. This is a Contract hybrid role (Oxford-based) offering flexibility, career growth, and More ❯

Senior Rust/C++ Software Engineer Location: Hybrid (UK) Salary: £60,000 – £70,000 Type: Permanent About the Role: Our employer-partner is seeking a Senior Software Engineer with deep experience in Rust and/or C++ to design and build high-performance, distributed, and mission-critical systems. You will play a key role More ❯

About the job Senior Software Engineer Robotics Location: Hertfordshire Salary: £50,000 - £60,000 Are you a Software Engineerwith a passion for C#/.NET and Robotics? Join a fast-growing technology start-up that builds advanced robotics systems for real-world applications. Key Responsibilities: +Lead the way and be a strong advocate of best practice … software design patterns, software architecture and agile methodology. +Take a lead in our effort to re-architect and harden our code to prepare for 10x-100x scale +Mentor junior software engineers +Help the team to find the right balance between strong principles and pragmatism; and help the team to inform buy vs build decisions +Be the standard … bearer for code quality (including software test coverage and maintainability of code) Key Requirements: +10+ years experience in software engineering. +10+ years experience with C# and .NET. + Previous experience with Linux, Python and Azure DevOps +Previous experience in both start-ups/scale-ups and larger organisations +Strong communication skills +Previous experience in robotics or other hardware More ❯

Senior Embedded Software Engineer Yateley £50-60k As a Senior Embedded Software Engineer , you’ll be designing and developing software that brings cutting-edge sonar, navigation, and communications systems to life. From embedded Linux and real-time operating systems to hardware-in-the-loop testing, your expertise will help deliver the technology … Proficiency in C/C++ , embedded Linux, and microcontroller (STM32, PIC) development. Strong grasp of RTOS/bare-metal systems, DevOps build tools, cross-compiling. A mindset for structured software development: coding guidelines, testing, version control, peer reviews. Curiosity, collaboration, and the ability to explain complex ideas simply. Curious to learn more? Click apply and we'll be in More ❯

Overview Quantum computing promises to transform the tech landscape; developing the right software to access and use it is essential to realising that potential. OQC is looking for a Senior Software Engineer to join our team to drive the scaling and development of our code and ensure that OQC is able to offer a truly seamless … via the cloud and direct access via data centres. This is a chance to contribute to the true, bleeding edge of the tech sector. You will be a seasoned Software Engineer who thrives on solving problems and stepping out of your comfort zone to drive forward projects. You have led projects through the entire development lifecycle and are … role is central to making access to Quantum Computing a reality today. Are you ready to help open that door? Responsibilities Leading the design, build, testing and implementation of software solutions to support our mission of making Quantum Computing accessible. Identifying opportunities to improve and apply best practice and balancing risks against progress in projects. Owning technical problems and More ❯

Job Title : Senior Embedded Software Engineer Location : Oxford Salary : £55,000 - £70,000 (Depending on Experience) Job Overview: We are seeking an experienced Senior Embedded Software Engineer to join a multidisciplinary design and engineering team developing high-quality, safety-critical embedded systems. The successful candidate will take technical ownership of embedded software development … across multiple concurrent projects, working closely with hardware, systems, and test engineers to deliver robust and compliant solutions. This role will suit a hands-on engineer with strong experience in C/C++, ARM microcontrollers (STM32), and communication protocols such as CANbus and RS-485. Experience within regulated industries—ideally aerospace or similarly safety-critical environments—and familiarity with … DO-178C processes is highly desirable. This is a full-time, on-site role based in Oxford, offering the opportunity to influence software design and development across several innovative platforms. Required Skills & Experience Proven experience (5+ years) developing embedded software in C and C++. Strong working knowledge of ARM Cortex-M (STM32) microcontrollers. Experience with CANbus and RS More ❯

Senior Front-End Software Engineer (React/TypeScript) Location: Remote (1 day per month in Oxford, UK) Type: Permanent | SaaS | Global Tech Company Are you passionate about building exceptional, scalable front-end applications? Our client — a leading SaaS company based near Oxford — is expanding and looking for a Senior Front-End Software Engineer to … and continuous improvement (Optionally) take on a technical lead role , mentoring others and influencing best practices ✅ What You’ll Bring 5+ years of experience building production-grade front-end software with React.js and TypeScript Strong skills in HTML5 , CSS3 , and RESTful APIs Experience with unit and integration testing Background in SaaS product development 💡 Nice-to-Have Skills Leadership or More ❯

Senior Software Engineer - London - £120k Please note - this role will require you to work from the London based office three days per week. You must have the unrestricted right to work in the UK to be eligible for this role - this organisation is not able to offer sponsorship. Are you passionate about building cutting-edge technology solutions … building out our new front-end analytics platform, delivering intuitive, high-performance tools that empower users with real-time insights and advanced visualization capabilities. Collaborate with commercial teams to engineer and optimize processes and analytical models. Build and maintain Python-based services and APIs using modern frameworks and best practices. Develop solutions for data modeling, market analysis, and position More ❯

A Senior Software Engineer is sought to join a progressive, collaborative development team based in Brighton. As the business embarks on a journey to modernise its technology stack and enhance the user experience, this role offers the chance to make a real impact - helping to shape how the platform evolves and performs in the next stage of More ❯