SII Group delivers Digital Services, IT, Engineering, and Consulting to diverse industries, enabling digital transformation through our commitment to Growth, People, and CSR.
With over 16,000 professionals across 21 countries, we're recognised as a "Great Place to Work" for fostering a high-trust culture. Our core values of Trust, Transparency, and Quality drive our work package delivery, ensuring we meet and exceed client expectations as a committed partner.
Since 2016, SII UK has supported top Aerospace & Defense, Aviation, Transportation, and Finance clients, empowering digital transformation with industry-leading engineering expertise.
Let’s Tech Together is our promise to encourage innovation and teamwork. We support our engineers with development opportunities and a collaborative, inclusive environment where every voice is valued and empowered.
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THE OPPORTUNITY
An Electronics Engineer is required to join a collaborative team developing enhancements to an established product for a multinational Defence company. The role involves supporting the electrical aspects of the system design, including the creation and update of interconnection diagrams and the specification of cables, connectors, and harnessing. This position is based on the Client's site.
The ideal candidate:
* 3-5 years of experience in electronics or electrical design, ideally in a Defence or Aerospace environment
* Hands‑on experience with interconnection diagrams, wiring schedules, and cable assemblies
* Familiar with the selection and specification of military- or aerospace-grade cables, connectors, and accessories
* Understands electrical and signal integrity considerations, such as shielding, grounding, and EMC
* Able to interpret system‑level schematics and translate them into detailed wiring or cabling information
* Works effectively under minimal supervision once familiar with project requirements
* Communicates well with mechanical, systems, and manufacturing teams
* Maintains clear and organised design documentation aligned with configuration control processes
KEY RESPONSIBILITIES
* Produce and maintain electrical interconnection diagrams (ICDs), wiring schematics, and cable assemblies
* Specify cables, connectors, and associated hardware in line with project and defence standards
* Support the integration of electrical systems with mechanical and software teams
* Update legacy electrical designs to meet current standards and requirements
* Assist in resolving cable or connector issues arising during integration and test
* Manage BOMs and drawing packs associated with electrical harnesses
* Liaise with suppliers and manufacturers to ensure components meet specifications and lead times
* Provide input to system‑level design reviews
* Attend daily stand‑ups and report technical progress and challenges
EXPERIENCE AND SKILLS
Essential
* 3-5 years of experience in an electronics or electrical engineering role
* Strong understanding of electrical wiring practices and interconnect standards
* Experience in Defence, Aerospace, or other highly regulated sectors
* Understanding of EMC, signal integrity, and cable routing best practices
* Organised and detail-focused, with a methodical approach to documentation
* Comfortable reading and interpreting system and hardware interface control documents (ICDs)
* Works well in cross‑functional teams and communicates clearly
Desirable
* Current or recent UK Security Clearance (SC); security‑cleared candidates will be strongly positioned for this role
* Familiarity with configuration control and change management processes
* Understanding of power distribution and grounding strategies in complex systems
* Experience supporting electrical integration and system test
* Familiarity with Defence electrical harnessing standards and best practices
Diversity & Inclusion
We are committed to building an inclusive and diverse workplace. Applications are strongly encouraged from women, individuals from minority backgrounds, and candidates from non‑traditional engineering routes. If you meet most but not all of the listed criteria, we still welcome your application.
Values & Behaviours
* Customer‑focused mindset.
* Strong collaboration and teamwork skills.
* Ability to innovate and think critically.
* Analytical mindset for solving complex technical problems.
* Self‑motivated with a proactive approach.
* Strong interpersonal skills, capable of working in a multidisciplinary environment.
* Ability to manage workload, prioritise tasks, and work under pressure to meet deadlines.
BENEFITS
* Competitive Basic Salary
* 6% Employers Contribution + 6% as a salary sacrifice
* Private Medical Insurance, Life Cover and Income Protection
* 25 days holiday
* 5 days full sick pay per year
* Flexible working
* Cycle to Work & TechScheme
* Continuous professional development
* Corporate access to the Udemy platform
* If you're applying for a role requiring security clearance, please be aware that foreign or dual nationality is not an automatic bar, however certain posts may have restrictions which could affect those who do not have sole British nationality or who have personal connections with certain countries outside the UK.
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