Software Integration Engineer in Fareham

Overview

Software Integration Engineer at L3Harris UK located in Portchester, UK.

The role supports advanced industrial and maritime technology solutions across customer programmes, Internal Research and Development (IRAD) initiatives, and Business Development (BID) activities.

This position operates 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.

Responsibilities

• Design, develop, integrate, and maintain software solutions for industrial control and maritime systems.
• Develop and support interfaces between programmable logic controllers (PLCs), power management systems, communication systems, and higher‑level software applications.
• Perform software integration, verification, validation, troubleshooting, and system testing activities throughout the project lifecycle.
• Support laboratory integration, factory acceptance testing, harbour trials, sea trials, commissioning, and customer acceptance activities.
• Collaborate with multidisciplinary engineering teams including software, systems, hardware, electrical, and test engineers to deliver integrated solutions.
• Support IRAD initiatives, technology demonstrations, and BID activities through technical investigations, prototyping, and proof‑of‑concept development.
• Produce and maintain technical documentation, integration procedures, test specifications, and engineering records in accordance with company processes and industry standards.
• Investigate and resolve software, interface, and system‑level issues identified during development, integration, and customer support activities.
• Support the continuous improvement of software integration processes, tools, and engineering practices.
• Travel to customer and company sites as required to support integration, testing, commissioning, and acceptance activities (approximately 5% travel).

Qualifications

• Bachelor’s degree in software engineering, Computer Science, Electrical Engineering, or a related engineering discipline.
• Experience developing and maintaining software solutions using C++.
• Experience working within Linux‑based development and deployment environments.
• Experience integrating software with industrial control systems, operational technology platforms, or programmable logic controllers (PLCs).
• Experience supporting software testing, verification, validation, and troubleshooting activities.
• Experience working within multidisciplinary engineering teams across the software development lifecycle.
• Preferred: Experience with maritime systems, vessel control systems, or marine automation environments.
• Preferred: Familiarity with maritime communication protocols, including National Marine Electronics Association (NMEA) standards.
• Preferred: Experience with embedded, real‑time, or mission‑critical software systems.
• Preferred: Experience with power management, monitoring, or industrial control systems.
• Preferred: Familiarity with commissioning, harbour trials, sea trials, or site acceptance testing activities.
• Preferred: Familiarity with source control, configuration management, and software release processes.
• UK nationality and eligibility for a security clearance are required due to the nature of the work.
• Right to work in the UK and eligibility for classified information access are mandatory for conditional offers.

Benefits

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 the opportunity to buy/sell up to 5 days, private medical insurance with optional family cover, pension scheme up to 8% employer contribution, life assurance 4× salary (flexible up to 10×), group income protection, flexible opt‑in extras such as a health care cash plan, dental insurance, gym membership, critical illness cover, cycle to work scheme, travel insurance, and electric car scheme, Employee Family Assistance Program providing mental health and wellbeing support, professional membership reimbursement (discretionary).

Equal Opportunity Employment

L3Harris Technologies is proud to be an Equal Opportunity Employer.

We are committed to maintaining a workplace that is free from unlawful discrimination and offers equal opportunities for all.

Applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief, and marriage and civil partnerships.

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