1 to 25 of 57 Senior Software Engineer Jobs in the South East

Senior Software Engineer – C#/Python Oxfordshire | Hybrid | £65,000 – £70,000 + Bonus + Share Options Are you a hands-on software engineer who enjoys solving complex technical problems? Do you want to shape software that connects with advanced hardware systems? Would … like to mentor others while staying close to the code? Our client is looking for a Senior Software Engineer to help design, build and improve software for high-precision technical platforms. This is a great opportunity to take ownership of meaningful software, influence architecture ...

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 Software Engineer - Geospatial Data (Contract) Location: Farnborough (3 days per week onsite) Contract Length: Initial 3-month contract IR35 Status: Outside IR35 Security Clearance: All candidates must be eligible for security clearance prior to appointment. We are seeking an experienced Senior Software Engineer … performing engineering team delivering advanced data-driven and navigation-focused solutions within a complex operational environment. This role is suited to a hands-on software engineer with experience designing and developing scalable applications and services that work with geospatial datasets, spatial databases, and mapping technologies. Experience within ...

hands-on software engineer who enjoys solving complex technical problems? Do you want to shape software that connects with advanced hardware systems? Would you like to mentor others while staying close to the code? Our client is looking for a Senior Software Engineer to help design, build and improve software for high-precision technical platforms. This is a great opportunity to take ownership of meaningful software, influence architecture and support a small, talented engineering team. Why This Role is Great You’ll get to: Build reliable, secure and maintainable software ...

Senior Software Engineer Milton Keynes (One day a week on site) Up to £80,000 per annum plus bonus VIQU are working with an international organisation in Milton Keynes who are hiring multiple senior software engineers to help build one of their product lines. This … role will focus on shaping architectural decisions, hands on coding and mentoring other software engineers. Key technology stack spans C#, React, Node.JS and AWS. Job duties: Ÿ Build and develop web interfaces, server side components and integrations, whilst contributing to architecture reviews. Ÿ Mentor junior engineers, provide code reviews and promote ...

Senior C# Software Engineer - WPF Are you an experienced Senior C# Software Engineer actively looking for a new role? If so, my client has a superb opportunity to strengthen their R&D team. This is a hands-on role where you will play … part in the design, implementation, and debugging of software used to control special purpose machines, while also providing technical leadership and mentoring to a small team of engineers. In this Senior C# Software Engineer - WPF role based in Abingdon, Oxfordshire you will be responsible ...

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 Engineers (Level 1 & Level 2) 📍 Portsmouth (Hybrid – ~1 day per week/Fortnight in the office) 💰 Level 1: Up to £75,000 | Level 2: Up to £85,000 + Bonus + Equity 🌍 Build the Future of Payments with AI at the Core HireQ Talent is partnering … adoption of agentic AI , enabling smarter automation, enhanced decision-making, and more intelligent, adaptive systems across their platform. They’re now hiring two Senior Software Engineers to play a critical role in this journey: Senior Software Engineer (Level 1) – up to £75k Senior Software ...

Senior Software Engineer (C++/Embedded) Working with a specialist defence technology business delivering mission-critical systems, we’re looking for a Senior Software Engineer to join a high-performing team. You’ll work across the full lifecycle from architecture and design through … integration and acceptance developing real-time, embedded software in C++ for complex defence applications. What we’re looking for: Strong C++ experience in embedded/real-time environments Background in defence, aerospace, or regulated industries Experience with system design, integration, and verification Senior Software Engineer (C++ ...

Senior Software Engineer (Python) Hybrid London (2 days/week) Up to £100,000 + Benefits We're hiring a Senior Software Engineer to play a key role in building and scaling a high-impact ad-fraud prevention platform used globally. This … senior IC role for engineers who enjoy ownership, solving complex problems, and setting a high bar for engineering quality. What you'll do: Lead delivery of complex, cross-service features Make pragmatic architecture and design decisions Own services end-to-end, including performance, reliability, and incident response Set standards ...

experienced Software Engineer looking to work on complex, real-world systems within a highly innovative engineering environment? We’re partnering with a specialist engineering and technology business delivering advanced solutions within the defence sector. Due to continued growth, they’re looking to appoint a Senior Software Engineer to join their high-performing engineering team. This is an opportunity to work across the full software development lifecycle on technically challenging projects, collaborating with multidisciplinary teams and contributing to the design and delivery of cutting-edge systems. The role: As a Senior Software ...

well-established technology organisation is looking for a Senior Software Engineer to join its growing software engineering function. The business develops advanced control, display, and mission-critical systems used across safety-critical environments. They are looking for experienced software engineers who can take ownership … technical delivery, mentor junior engineers, and contribute throughout the full software development lifecycle. Due to the nature of the role, it is required that candidates must be a sole British citizen and eligible to obtain security clearance. The Role As a Senior Software Engineer ...

Senior Software Engineer Surrey On-Site Working £60,000–£70,000 We are currently partnering with a specialist engineering organisation operating within the Defence sector who are looking for a Senior Software Engineer to join their established engineering team. The company delivers complex, high … environment, offering the opportunity to work across the full development lifecycle on technically challenging projects. This is a key role within the software function, combining hands-on development with technical leadership. You will take ownership of software design and delivery, support project execution, and mentor engineers within ...

Senior Software Engineer Permanent Location: Portsmouth/Home (on site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python/C++/Legacy Modernisation/Complex Systems, MOD DV Clearance We are looking to recruit a MOD DV Cleared Senior Software Engineer for a leading technology consultancy delivering complex software engineering, maintenance and modernisation projects. This is a hands-on senior engineering role focused on maintaining, improving and evolving complex software systems. The role would suit someone with strong Python development experience, ideally combined with exposure ...

Senior Software Engineer (Backend)London - Hybrid (3 days in office) Up to £85k + benefits What if the systems you built were used every day by millions of readers around the world? A long-established, AI-driven technology business is hiring a Senior Software Engineer … machine-learning-led products that operate at scale, helping publishers make smarter decisions around content, engagement, and audience growth. This is a hands-on senior role within a strong London-based engineering team, focused on backend systems at the core of the platform. The role Build and evolve backend ...

Senior Software Engineer Location - Southampton, Hampshire, 2 days a week. Salary - Up to £80k plus bonus. 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 … last 5 years. Overview: Copello are working with a 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 ...

Senior Embedded Software Engineer Berkshire Permanent - Full Time Help Shape the Future of Advanced Navigation & Sensor-Fusion Technology We design and manufacture advanced RF navigation and communication systems used across defence, law enforcement, and civil applications worldwide. We are globally recognised for delivering industry-leading solutions that … operation continues to grow rapidly, we are investing heavily in new engineering capability, product development, and manufacturing expansion. We are now seeking a Senior Embedded Software Engineer to play a key role within our growing UK engineering function. Most embedded software roles ask you to join ...

Senior Software Engineer Permanent Location: Portsmouth/Home (on site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python/C++/Legacy Modernisation/Complex Systems, MOD DV Clearance We are looking to recruit a MOD DV Cleared Senior Software Engineer for a leading technology consultancy delivering complex software engineering, maintenance and modernisation projects. This is a hand... CRWG1_UKTJ ...

Senior Software Engineer Permanent Location: Portsmouth/Home (on site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python/C++/Legacy Modernisation/Complex Systems, MOD DV Clearance We are looking to recruit a MOD DV Cleared Senior Software Engineer for a leading technology consultancy delivering complex software engineering, maintenance and modernisation projects click apply for full job details ...

Senior Software Engineer Find out exactly what skills, experience, and qualifications you will need to succeed in this role before applying below. Permanent Location: Portsmouth/Home (on site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python/C++/Legacy Modernisation …/Complex Systems, MOD DV Clearance We are looking to recruit a MOD DV Cleared Senior Software Engineer for a leading technology consultancy delivering complex software engineering, maintenance and xkybehq modernisation projects. This is a hand Please click on the apply button to read the full ...

Cleared Senior Software Engineer Permanent Location: Portsmouth/Home (on site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python/C++/Legacy Modernisation/Complex Systems, MOD DV Clearance We are looking to recruit a MOD DV Cleared Senior Software Engineer for a leading technology consultancy delivering complex software engineering, maintenance and modernisation projects. This is a hands-on senior engineering role focused on maintaining, improving and evolving complex software systems. The role would suit someone with strong Python development experience, ideally combined with exposure ...

exciting opportunity has arisen for a Senior Embedded Software Engineer based in East Sussex to join this global leader in cutting edge electronic instrumentation. Joining their multidisciplined R&D team at their global centre of excellence, as a Senior Embedded Software Engineer you will … develop and support software for significant projects aligned to business critical needs. You will be involved in all stages of the software development lifecycle from requirements capturing to release validation and approval. Experience required for Senior Embedded Software Engineer based in East Sussex: Previous experience ...

seeking an experienced Senior Software Engineer to join a fast-growing, innovative organisation at the forefront of semiconductor technology, embedded systems, and capacitive touch solutions. This is an exciting opportunity to lead the design and development of firmware and advanced touch algorithms used in next-generation consumer … electronics. You will play a key role in shaping technical direction, mentoring engineers, and delivering high-quality embedded software solutions across the full development lifecycle. Key Responsibilities for this Senior Software Engineer position in Whiteley, Technical Leadership & Project Delivery Lead end-to-end development of embedded ...

Senior Software Engineer (Contract) Remote/Oxford (Flexible Hybrid) £500 – £600 per day (Outside IR35) 3–6 Month Contract We’re supporting an innovative deep-tech company developing AI-driven software within a highly complex scientific environment. They’re looking for an experienced Senior Software Engineer to help accelerate backend platform development as they continue to scale. This is a hands-on contract role focused on building robust backend services, APIs, and scalable applications using Python. You’ll work closely with a highly technical engineering team, contributing across architecture, development, and delivery ...

client, a recognised leader in the Defence & Security industry, is seeking a skilled Senior Software Engineer to join their team in Chertsey. This role offers the chance to work on high-impact projects within a collaborative environment, delivering innovative software solutions that meet stringent industry standards. … ideal candidate will lead software design activities, mentor team members, and ensure the successful delivery of complex systems aligned with defence sector requirements. Key Responsibilities: Lead software design efforts, translating system requirements into robust solutions Supervise and mentor design engineers, ensuring adherence to best practices and standards Collaborate ...