Software Integration Engineer

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title – Software Integration Engineer

Job Location – Portchester, UK

Job ID – 40586

Operating at 11 sites in the United Kingdom, L3Harris supports Britain's mission to secure and strengthen the country by delivering sovereign innovation across the space, air, land, sea and cyber domains.

L3Harris in Portchester are part of our Maritime UK business - a leading global supplier of integrated marine control systems and simulation products for warships, submarines and high-end commercial marine vessels worldwide. Our Maritime UK business has four UK location and together we are powering the Royal Navy’s adoption of autonomous surface vehicle technology as well as delivering autonomous capability to UK ports, harbours and offshore energy service providers.

We are seeking a Software Integration Engineer to join our Maritime engineering team, supporting the delivery of advanced industrial and maritime technology solutions across customer programmes, Internal Research and Development (IRAD) initiatives, and Business Development (BID) activities.

This role offers the opportunity to work at the interface between software, control systems, and operational technology, contributing to the integration, testing, validation, and commissioning of complex systems used in mission-critical environments. The successful candidate will collaborate with multidisciplinary engineering teams to develop and integrate software applications, programmable logic controller (PLC) systems, smart power management solutions, and maritime communication interfaces.

The position supports a diverse portfolio of projects ranging from concept development and prototyping through to customer delivery and operational deployment. The role is ideally suited to an engineer who enjoys solving integration challenges, working across multiple technologies, and contributing to innovative solutions within the maritime and industrial sectors.

As part of a growing engineering team, the Software Integration Engineer will play an important role in strengthening the organisation’s integration capability, supporting knowledge transfer, and ensuring the successful delivery of future programmes.

• Hybrid working where possible, three days onsite per week

• Half day finish on a Friday

• 25 days holiday per year (plus bank holidays), increasing with long service and with the opportunity to buy/sell up to 5 days

• Private medical insurance with optional family cover

• Pension scheme of up to 8% employer contribution

• Life Assurance 4x salary (flexible … [truncated]