1 to 25 of 50 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 … 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 ...

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 … 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. ...

Senior Software Engineer – C++ Salary- £50K-£75K negotiable depending on experience plus competitive benefits package including pension, 25 days holiday and life assurance. Location – Portsmouth, Hants, Hybrid Our client is a rapidly growing software and data science consultancy firm, renowned for their reputation and keen ability … understand and meet customer requirements effectively. Their team is dedicated to delivering high-quality, end-to-end software and data science services. This role offers the opportunity to work with these teams to operate across multiple sectors, including defence, energy, transport, and health, and contribute to the development ...

Senior Software Engineer will work within the Systems and Software team in the Programmes area of STS Defence, developing and maintaining software throughout the Software Development Lifecycle from requirements elicitation, through to in service delivery. The post will provide technical leadership on software projects for key stakeholders and on software development activities undertaken by the company. This includes responsibility for managing code and quality reviews to ensure relevant quality standards are met across the software team. The Senior Software Engineer will also assist in support of wider ...

Senior Embedded Software Engineer | £60-70k | 2 days in office | Royston A highly innovative engineering team is looking to a Senior Embedded Software Engineer to bridge the gap between hardware innovation and intelligent control systems. Youll be designing & developing extremely high spec instrumentation … test & production. This opportunity is unique as youll be writing code that directly shapes the direction of scientific discovery, and developing your embedded software skills in a high-spec environment that will take your skills to the next level. Senior Embedded Software Engineer Responsibilities + Design ...

Senior Java Full Stack Software Engineer - Public Sector Digital Transformation Location: UK (Fully Remote) Type: Permanent Security Clearance: SC cleared/eligible Use your engineering expertise to improve services that millions rely on. We're hiring a Senior Software Engineer to join a mission … high-quality engineering, enjoy mentoring others, and want your work to have real public impact, this role is for you. The Role As a Senior Software Engineer (Full Stack) you'll design, build and deploy scalable, secure and well-tested software solutions. You'll contribute ...

Role: Senior Software Engineer Location: Canary Wharf, Central London Salary: £70,000-£75,000 Plus Hybrid/Flexible Working, Company Bonus, Generous Pension and more. We are working with a well-funded, mission-driven organisation in the renewable energy space looking to hire a Senior Software Engineer into a core engineering team. You’ll be working on complex, large-scale platforms supporting critical infrastructure at a national level. This is a high-impact engineering environment where strong technical input genuinely matters. You’ll be responsible not just for building software, but for contributing ...

Senior Software Engineer Salary: Negotiable plus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for senior software engineers with a range of levels of experience including designing and delivering software applications. We are a small but rapidly growing consultancy, owned … looking for candidates with a mix of technical expertise and interpersonal skills, able to work independently or in small teams. The Role: As a Software Engineer, you will play a major role in developing code in the Software Modelling and Simulation, autonomy and geospatial fields, along with ...

Senior Software Engineer - Oxford (Hybrid) Salary: £60k + Annual Bonus We have partnered exclusively with a market-leading Manufacturing company who have an exciting opportunity for a Senior Software Engineer to join their growing team. This role will be focused on the design, development … maintenance of their software products within a .NET environment. Successful candidates for this position must have a minimum of 5+ years' experience developing with .NET, C#, XAML, Avalonia, as well as experience with web client-server application development, and UI development. Key Responsibilities: Work on cross-platform projects including ...

Senior Software Engineer Hybrid (2-3 days onsite, Central London) | £75,000 - £85,000 + benefits A high-growth technology company operating at the intersection of real-time data, analytics, and cutting-edge product development is entering an ambitious expansion phase and is looking to hire … Senior Software Engineer to play a key role in its next stage of growth. This is an opportunity to work on mission-critical, real-time systems used at scale, with genuine ownership across architecture, development, and delivery. The role is hands-on, commercially focused, and suited ...

Senior AI Software Engineer Employment Type: Contract Duration: 12 Months Location: Berkshire, England (1 day per month onsite) Umbrella Rate: £600-£700/day Opportunity Overview We are working with a large, technology-driven organisation seeking a Senior Software Product Engineer to join … ecosystem, you will play a key role in accelerating stakeholder objectives through robust, sustainable technology solutions. Key Responsibilities Design, develop and maintain software solutions leveraging AWS services including Amazon Connect, Amazon Lex, AWS Lambda and Large Language Models (LLMs). Collaborate with cross-functional teams to integrate new capabilities ...

Senior Software Engineer St Albans (Hybrid) £75,000 + Bonus + Shares Method Resourcing partnering with a market-leading IoT technology provider supporting sectors such as fire, security, utilities, and critical infrastructure. Backed by private investment and operating internationally, this organisation is continuing to scale its engineering … capability as its products and customer base grow. They're now looking for a Senior Software Engineer to join a highly capable signalling/IoT engineering team. The role This is a hands-on senior engineering role focused on designing, building, and operating the software ...

Senior Software Engineer Location - Southampton, Hampshire Salary - Competitive Security - Due to the nature of this position, you must be eligible to achieve a minimum of SC clearance, be a British Citizen and have resided in the UK for the last 5 years. Overview: Copello are working with … leading defence business who are looking for a skilled Senior Software Engineer to join a dynamic team working on RF communication and sensor systems. Key Responsibilities: Design and develop software components Implement and test software within an agile team Collaborate with stakeholders to ensure technical ...

Senior Software Engineer – Secure Systems & Advanced Cyber (Farnborough) Work on real-world engineering challenges that directly contribute to the UK’s defence and national security. We’re looking for a Senior Software Engineer to join a small, highly capable team developing next‐generation secure … where you’ll thrive. What you'll be doing: You’ll join a multidisciplinary engineering group that designs, prototypes, and delivers high‐assurance hardware–software solutions used in some of the most demanding security environments in the UK. You’ll work on projects from early-stage research through ...

Senior Software Engineer Location: Surrey (hybrid working available) Security Clearance: Eligible for SC/DV clearance required Our client, a highly respected UK engineering organisation operating within the Defence sector, is seeking an experienced Software Engineer to join their growing team. This is an opportunity … work on complex, high-integrity systems, delivering innovative software solutions that meet demanding customer and regulatory requirements. As a senior member of the software function, you will lead and contribute to the development of high-quality software products and systems for mission-critical applications. You will ...

Senior Software Engineer Salary: £75k-£110k (plus attractive bonus on top) Location: London or Leeds (relaxed about hybrid or remote working, if preferred) My client is a specialist provider of sports pricing and trading technology, developing advanced simulation-based models and risk tools that underpin the performance … major sports brands. Role Overview Were looking for a Senior Software Engineer to join the Modelling & Data Engineering group at a rapidly expanding sports-technology business. This is a hands-on role in a fast-moving environment where youll help shape new modelling tools, improve existing systems ...

Senior Software Engineer (JavaScript) Salary: Up to £85,000 Hybrid - 2 days a week in office (London/Brighton/Cardiff) Why join us? We work at the intersection of creativity, data, and cutting-edge technology to turn ideas into measurable impact. Our strength comes from diverse … puts people first. Backed by a global media and content network, we build tools that reach real audiences at scale. The role As a Senior Software Engineer, you'll design and build high-impact tools, automation, and platforms used across global media, SEO, paid media, and content ...

Senior Software Engineer - SC Cleared Location: Farnborough (Hybrid/On-site) Salary: Up to £100,000 (dependent on experience) Clearance: Active SC clearance (willing and eligible to go through DV) To Apply: Email An opportunity for a senior software engineer to work alongside security … researchers on technically challenging problems with real-world impact. The role involves developing complex software used to analyse, interact with, and expose unintended behaviour in a wide range of platforms and systems. You'll gain deep exposure to operating system internals and unconventional environments, with a strong focus ...

Senior Software Engineer Portsmouth | Hybrid, 3 days onsite £50,000-£75,000 plus bonus and benefits This Senior Software Engineer role is ideal for a hands-on engineer with experience in C++ and Unreal Engine, working on complex, performance-critical software across … geospatial domains. The position focuses on building robust, scalable systems while offering clear progression towards technical leadership. The role sits within a growing software and data science consultancy delivering end-to-end solutions across defence, energy, transport and health. You will work alongside experienced engineers, data scientists and subject ...

Title: Senior Software Engineer – ATE Location: Reading Employment Type: Permanent Working Model: Hybrid (typically 3 days on‑site, 2 from home; task‑based flexibility available) A client of our are seeking a Senior Software Engineer to take full ownership of designing and delivering … robust ATE platform that integrates seamlessly with instrumentation, embedded systems, and manufacturing processes. Key Responsibilities - Architect, design, and implement a new ATE system, including software, tooling, and test workflows. - Develop automated test software using Python and C#, C/C++. - Build test frameworks, scripts, and infrastructure for validation ...

Senior Software Engineer Portsmouth Hybrid, 3 days onsite £50,000-£75,000 plus bonus and benefits This Senior Software Engineer role is ideal for a hands-on engineer with experience in C++ and Unreal Engine, working on complex, performance-critical software across ...

Senior Software Engineer - Cyber Location : Onsite, Hampshire. Employment Type: Permanent Salary : Competitive salary commensurate with experience, plus benefits. Security: Candidates must be eligible to obtain DV clearance due to the nature of the work. Our client is seeking a highly skilled Senior/Principal Software Engineer to join a leading organisation specialising in advanced cryptographic and key management solutions that ensure secure information exchange worldwide. This role offers the opportunity to develop innovative security technologies in a dynamic, high-security environment. What You Will Be Doing Designing, implementing, and testing secure software ...

Info about the company We are working with an established Oxfordshire-based technology organisation developing ARM-based embedded software systems used by millions globally. Collaborative, high-trust engineering environment with a strong firmware focus and long-term product roadmap. * There is no visa sponsorship available for this role … driving license is required* Info about what the Senior Embedded Software Engineer role entails This is a senior firmware position focused on low-level embedded C development on microcontroller platforms, including RTOS integration, driver development and architectural input. High-autonomy role within a small team, requiring ...

Senior Software Engineer Salary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for senior software engineers with a range of levels of experience including designing and delivering software applications. xkybehq We are a small but rapidly growing consultancy, owned ...

Senior Software Engineer Salary: Negotiable plus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for senior software engineers with a range of levels of experience including designing and delivering software applications. We are a small but rapidly growing consultancy, owned ...