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MANNARINO

Satellite Electrical Power System (EPS) Design Engineer

Montreal, QC, Canada

Job type: Full-time
Apply by: Oct 22, 2026
Experience: B.Sc. in Electrical Engineering, Aerospace Engineering, Physics, or a related field with 8+ years of EPS system design experience on LEO and/or MEO platforms.
Posting language: English
Posted: Sep 22, 2026

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Original job description

MANNARINO Systems & Software Inc. is a leader in providing safety-critical systems, software, hardware and certification engineering services to the aerospace, defense, space, simulation & power generation industries.

Our customer base is very large, covering traditional aerospace companies as well as new and exciting markets, including electric propulsion, Urban Air Mobility, Unmanned Aerial Vehicle and autonomous flight.

The MANNARINO culture is focused on high quality, hard work, professionalism and teamwork within a highly respectful, motivating atmosphere geared towards long-term business growth.

As a member of our team, you will benefit from:

a comprehensive group insurance and RRSP plan
a flextime policy with paid overtime
discretionary bonuses
a fitness reimbursement program
other office perks such as catered weekly lunches and free hot beverages (espresso, coffee, hot chocolate and tea)
regular company outings

Career Opportunity and Primary Roles / Responsibilities

We are seeking an experienced Electrical Power System Engineer to support the concept, detailed design, analysis, verification, and integration of electrical power subsystems (solar arrays, power-conditioning units, batteries, distribution, and regulation) for current and next-generation remote sensing and communications satellites. The role works closely with payload, bus, thermal, structural, and mission systems multidisciplinary teams responsible for delivering high-performance, reliable EPS solutions to commercial, government, and defense customers.

Tasks summary:

Architecture Concept & Requirements

Define EPS architecture (generation, storage, and distribution) that satisfies mission power budget, mass, volume, and reliability constraints.
Perform trade studies (e.g., solar cell type, battery chemistry, regulator topology).
Generate system requirements and functional flow block diagrams.
Develop Interface Control Documents (ICDs) and Design Descriptions.
Perform requirements management and maintain bidirectional traceability throughout the program lifecycle.

Detailed Design & Analysis

Size solar arrays, power-conditioning units, battery packs, and power distribution units.
Build and validate high-fidelity electrical models for satellite operating modes, FMECA, fault detection, and related analyses.
Conduct and maintain power budget models, load-flow analyses, thermal-power coupling assessments, and survivability analyses (e.g., eclipse, safe mode, fault-tolerant operations).

Cross-Functional Coordination, Stakeholder & Program Interaction

Present technical status, risk analyses, and trade-study results to program stakeholders and senior management.
Interface with spacecraft bus teams including power, thermal, structure, and avionics disciplines.
Develop and maintain high-fidelity power models for mission analysis activities such as orbit raising, station-keeping, and de-orbiting.
Develop tools to improve satellite power efficiency and optimization.
Support B&P activities (Phase 0 & Pre-Phase A).

Integration & Verification (IVV)

Author verification plans, test matrices, and validation procedures for unit and EPS subsystem testing.
Support ground-test and integration campaigns, including fueling activities, thermal vacuum testing, EMI/EMC testing, and spacecraft-level integration.
Analyze test data, resolve anomalies, and update design baselines.
Support Flight Software (FSW) integration activities.

Technical Leadership & Mentorship

Mentor, guide, and support junior and intermediate system engineers and interns.
Act as a technical liaison with customers, partners, and external suppliers.
Participate in continuous improvement initiatives.
Contribute to knowledge-sharing activities, process enhancements, and standards development.

Configuration, Documentation & Standards Management

Maintain design and safety standards.
Ensure all artefacts, analyses, software, documentation, and deliverables are maintained under configuration control within the PLM environment.
Support design reviews (SRR, PDR, CDR, MRR/TRR, etc.).
Support technology roadmaps and innovation initiatives.

Launch-Site, On-Orbit & Operations Support

Support launch-site interface checklists with launch vehicle integration teams, pre-launch checkout procedures, and early-orbit checkout activities.
Provide real-time engineering support during launch, on-orbit commissioning, anomaly investigations, and contingency operations.
Support SOOH development and associated operator training.

Required Qualifications:

B.Sc. in Electrical Engineering, Aerospace Engineering, Physics, or a related field with 8+ years of EPS system design experience on LEO and/or MEO platforms.
Deep knowledge of spacecraft bus subsystems and their interactions.
Experience with power electronics design and power management hardware.
Strong understanding of aerospace systems engineering fundamentals.
Hands-on individual capable of supporting systems integration processes, testing activities, and problem resolution.
Experience with Confluence and Jira.
Demonstrated ability to work effectively with minimal supervision.
Ability to distill complex problems into fundamental elements and solve them through analysis, analogy, or creativity.
Excellent written and verbal communication skills in English.
Knowledge of French will be considered an asset.

Knowledge of English is required to communicate and work with customers outside the province of Quebec. / La connaissance de l'anglais est requise pour communiquer et travailler avec nos clients situés à l'extérieur de la province de Québec.

At MANNARINO, we believe that passion and a desire to learn is crucial. Diversity of thought and experiences leads to innovative solutions and creativity. This is why we would like to encourage all those interested to apply.

We are an equal opportunity employer. All applicants will be held in strict confidence. Only those selected for interview will be contacted.

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More about this job

Responsibilities

The engineer will lead the design, analysis, and verification of electrical power subsystems for satellites, including solar arrays and battery systems. They will also coordinate with multidisciplinary teams to ensure mission requirements are met while providing technical leadership and mentorship to junior staff.

Requirements

Candidates must hold a Bachelor's degree in Electrical or Aerospace Engineering or Physics with at least 8 years of relevant experience in EPS system design. Strong expertise in spacecraft bus subsystems, power electronics, and systems engineering fundamentals is required.

Skills

Electrical power system design
Satellite bus subsystems
Power electronics
Requirements management
Trade studies
FMECA
Fault detection
Power budget modeling
Thermal-power coupling
Systems integration
Verification and validation
Technical leadership
Mentorship
Configuration control
Confluence
Jira

Benefits

Group insurance
RRSP plan
Flextime policy
Paid overtime
Discretionary bonuses
Fitness reimbursement program
Catered weekly lunches
Free hot beverages
Company outings

Visa sponsorship

Not detected in the job text

Keywords

Satellite
Electrical Power System
EPS
Solar arrays
Power-conditioning units
Batteries
Remote sensing
Communications satellites
Aerospace
Systems engineering
FMECA
Interface Control Documents
ICD
Thermal vacuum testing
EMI/EMC
Flight Software
LEO
MEO
Power electronics
Confluence
Jira
PLM
SRR
PDR
CDR
MRR
TRR
SOOH
Spacecraft bus

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