? Location: Montreal, Quebec, Canada

? Employment Type: Contract-to-Permanent (Preferred) / Contract

? Work Arrangement: TBD

? Start Date: Immediate

? Compensation: TBD -- based on skills and experience

Important Screening Requirements

- Must be legally eligible to work in Canada.
- Must be capable of obtaining the required security clearance.
- English proficiency is required. French is considered an asset.
- Strong hands-on experience with spacecraft Command & Data Handling (C&DH;) systems is required.

About the Role

We are seeking an experienced Satellite Command & Data-Handling (C&DH;) System Engineer to support the design, integration, verification, and operation of onboard command, control, and data-management functions for current and next-generation remote sensing and communications satellite programs. In this role, you will contribute to the C&DH; functional architecture, drive technical trade studies, support system integration and verification, and provide technical leadership throughout the spacecraft lifecycle.

Key Responsibilities

- Translate mission-level requirements into C&DH; functional and non-functional requirements.
- Develop and maintain system requirements, Interface Control Documents (ICDs), and system descriptions.
- Maintain bidirectional requirements traceability throughout the project lifecycle.
- Support cybersecurity and resilience considerations within C&DH; system design.
- Lead detailed design activities involving:
- Onboard processors
- Spacecraft data buses
- Memory subsystems
- I/O interfaces

- Support software architecture activities,



including command sequencing, telemetry packetization, health monitoring, and FDIR.
- Support Satellite Reference Database development and validation.
- Define uplink command formats, downlink telemetry structures, and ground-segment data-handling interfaces.
- Collaborate with Flight Software (FSW), TT&C;/PDT, and Ground Segment teams to ensure end-to-end data integrity.
- Develop verification plans, test matrices, and validation procedures for unit, subsystem, and spacecraft-level C&DH; testing.
- Execute functional testing, bus-protocol compliance testing, and SIL/HIL campaigns.
- Lead anomaly investigations, root-cause analysis, and corrective-action activities.
- Support spacecraft launch preparation, early-orbit checkout, and on-orbit operations.
- Analyze on-orbit telemetry and support updates to operational parameters as required.
- Support SOOH development and operator training.
- Contribute to technical standards, process improvements, technology roadmaps, and engineering knowledge bases.
- Support major design reviews, including SRR, PDR, CDR, MRR, and TRR.
- Mentor junior engineers and serve as a technical liaison with customers, partners, and vendors.

Required Qualifications





- Bachelor's degree in Electrical Engineering, Aerospace Engineering, or a related field.
- 8+ years of C&DH; engineering experience on LEO, MEO, and/or GEO satellite platforms.
- Deep knowledge of spacecraft data-bus and communication standards, including:
- SpaceWire
- MIL-STD-1553
- CAN
- Ethernet
- CCSDS packet telemetry and command
- PUS services

- Knowledge of processors, FPGA, firmware, and embedded systems.
- Strong understanding of aerospace systems engineering fundamentals, space workplace, and orbit mechanics.
- Hands-on experience supporting systems integration, testing, troubleshooting, and problem resolution.
- Experience with Confluence and JIRA.
- Ability to work independently with minimal supervision.
- Strong analytical and problem-solving skills, with the ability to break down complex technical problems into fundamental components.
- Excellent written and verbal communication skills in English.

Preferred Qualifications

- Experience supporting end-to-end spacecraft C&DH; development and integration.
- Experience with spacecraft commissioning, early-orbit operations, and on-orbit telemetry analysis.
- Experience with FDIR, command sequencing, telemetry processing, and spacecraft health monitoring.
- Experience with SIL/HIL testing and spacecraft bus-protocol compliance verification.
- French language proficiency.
- Experience supporting satellite programs through the full lifecycle, from early concept and design through launch and on-orbit operations.

📌 Satellite TT&C/PDT Systems Engineer | Fastwater Staffing (Montreal)
🏢 HIKINEX
📍 Montreal