About Galaxia

Proudly Canadian, we don't just build state-of-the-art satellites, we build the infrastructure layer for intelligence in orbit. From software defined satellites to real time edge processing and communications, Galaxia delivers secure, resilient connectivity across space, air, and ground for Canada and the globe. This is not lab work. Systems built here operate in orbit and are relied on.

The Role

Based in our Halifax office, we are open to bringing in the right engineer. This role owns the end to end performance, reliability, and evolution of Galaxia’s spacecraft communication systems. You will operate across the full communications chain from radio selection to on orbit performance across current and future missions. Current systems are based on COTS radios in S and X band with expansion into K band. This role has system level authority over performance, validation, integration, and margin control. This is a contract position with a path to full time.

What You’ll Do

Own communications architecture

• Define link budgets and margin policy
• Define Doppler strategy, data rates, and ground alignment
• Be accountable for end to end RF performance in orbit

COTS hardware validation

• Evaluate and select radios and antennas
• Define acceptance and integration criteria
• Interface with vendors and challenge assumptions
• Ensure hardware is flight ready, not just vendor tested

Simulation and modelling

• Simulate antenna radiation patterns including spacecraft interference and shadowing
• Perform S parameter analysis and RF system modelling
• Model EMC interactions across spacecraft subsystems

Spacecraft integration

• Align RF systems with ADCS, EPS, thermal, mechanical, and CDH
• Define grounding, shielding, and EMI strategies
• Ensure system level compatibility and performance

Verification and testing

• Define RF and BER test plans at system level
• Lead validation in anechoic and thermal vacuum environments
• Ensure full system validation prior to launch

Reliability and risk

• Identify single point failures and margin gaps
• Own RF risk posture and degraded mode performance
• Design for operation beyond nominal conditions

Ground and regulatory alignment

• Align spacecraft performance with ground station capabilities
• Support spectrum compliance and allocation strategy

Drive future capability

• Define RF roadmap for future satellite systems
• Identify limitations of current COTS solutions and drive next generation approaches

What We Look For

• Canadian Citizenship, PM. Work Permit may be considered for some roles
• Degree in Electrical Engineering, Telecommunications, or related field
• Strong experience in RF and communication systems
• Experience with link budgets, modulation, and system level analysis
• Ability to think in margins and degraded scenarios, not nominal cases
• Comfortable owning performance outcomes end to end

What Sets You Apart

• Experience with space based communication systems
• MILSATCOM, SIGINT background or exposure
• Strong background in RF testing, validation, and integration
• Experience working across full system stack, not just component level
• Ability to challenge assumptions and make decisions with authority

Expectations

• Think in margins, not nominal cases
• Own performance, not tasks
• Challenge assumptions, including vendor claims
• Operate with system level authority

Why Galaxia

• Own communication systems that operate in orbit
• Work on missions with real operational impact
• High ownership, low bureaucracy environment
• Direct influence on system performance and architecture

How to Apply

Submit the following:

• Cover Letter (max 1500 characters)
• Explain why you are a fit for this role and highlight your most relevant experience. Keep it concise and specific.
• Resume (max 2 pages)
• Focus on work that directly relates to RF, SATCOM, or system level engineering.