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 recent 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. a flextime policy with paid overtime discretionary bonuses other office perks such as catered weekly lunches and free hot beverages (espresso, coffee, hot chocolate and tea) 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.

Develop Interface Control

Documents (ICDs) and Design Descriptions.

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., 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. 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.

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).

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.

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.

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. Diversity of thought and experiences leads to innovative solutions and creativity.

📌 Satellite Electrical Power System (EPS) Design Engineer (Orléans)
🏢 Mannarino Systems and Software
📍 Orléans