Systems Engineer (Milsatcom)

Belcan; Stevenage; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading Defence & Space organisation in the UK is seeking a Systems Engineer to shape the future of Military Satellite Communications. You will define system architectures, support verification activities, and collaborate with engineering leads. Ideal candidates have a degree in engineering and experience with telecommunications systems. This role offers an opportunity to work on national defense programs and contribute to technology advancements in secure satellite communications.

Qualifications

• Experience in designing and deploying digital telecommunications systems, preferably Milsatcom.
• Familiarity with Waterfall and Agile methodologies.
• Knowledge of satellite platforms and payloads.

Responsibilities

• Define system architectures for military satellite communications.
• Support Verification, Validation & Test (VV&T) activities.
• Lead architectural design definition.

Skills

Stakeholder engagement

Requirements capture

Verification and Validation

Architectural Framework definition

Model-Based Systems Engineering tools

Presentation skills

Education

Degree in Electronic Engineering, Computer Science, or related discipline

Tools

MBSE tools

Job description

Systems Engineer (Milsatcom) - Shape the Future of Military Satellite Communications

Location: Portsmouth, UK

An opportunity has arisen for a Systems Engineer to join a leading Defence & Space organisation, working on Military Satellite Communications (Milsatcom). The successful candidate will be part of a team of Lead Systems Engineers and Architects, contributing to diversified and future‑looking programmes.

The Systems Engineer will play a key role in defining system architectures for upcoming tender opportunities with the UK MOD (Skynet Enduring Capability) and other Milsatcom programmes-covering the space, control, and ground segments. This is a chance to be directly involved in the next wave of technologies shaping secure satellite communications.

Key Contributions

• Capture and define requirements from stakeholder needs through to sub-systems, ensuring traceability and verification.
• Support Verification, Validation & Test (VV&T) activities.
• Lead ground system architectural design definition and trade-off analysis.
• Collaborate with Engineering Leads and Partners in integrated working groups to define segment and sub-system architectures.
• Provide technical inputs for proposals and act as Solution Lead during customer and internal governance reviews.
• Offer technical support to bidding teams and contribute to project planning, scheduling, and cost activities.
• Keep stakeholders informed on progress and resolve technical challenges.

Candidate Profile

• Degree (or equivalent) in Electronic Engineering, Computer Science, Telecommunications, or related discipline.
• Experience in the design, integration, and deployment of end-to-end digital telecommunications systems (Milsatcom experience desirable), covering space, control, and ground segments.
• Familiarity with Waterfall and Agile methodologies.
• Expertise in defining solutions within an Architectural Framework using Model-Based Systems Engineering (MBSE) tools (EA experience a plus).
• Strong customer and partner engagement skills.
• Working knowledge of satellite platforms and payloads, satellite control, mission control, and network control.
• Excellent presentation and writing skills.

Why This Role Matters

This is more than just a job-it's an opportunity to engineer history. The Systems Engineer will be part of programmes that set the standard for secure communications, with direct impact on national defence and the evolution of space-based networks.

This vacancy is being advertised by Belcan