Senior Power System Engineer

ReOrbit

Senior Power Systems Engineer designing and integrating satellite power subsystems for ReOrbit’s SiltaSat project. Supporting the full lifecycle from mission analysis through AIT.

Posted 8/24/2026full-timeHelsinki • 🇫🇮 FinlandSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in power systems engineering, particularly within the GEO space industry, with a focus on subsystem architecture, design, and integration. Proficient in managing the full lifecycle of power systems, including vendor interactions and documentation production.

Highest-signal resume keywords

Power Systems EngineeringSubsystem ArchitectureMission AnalysisDocumentation ProductionVendor Interaction

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Power Subsystem DesignBattery Unit SpecificationSolar Array IntegrationPCDU RequirementsAIT DevelopmentEGSE DefinitionData AnalysisDesign Documentation ManagementLifecycle Management

Soft Skills

Team CollaborationCommunicationProblem Solving

Certifications & Qualifications

Security Clearance

Industry Keywords

GEO Space IndustryLarge SatellitesSubsystem TeamsMission PhasesExternal Vendors

About the role

Key responsibilities & impact

Analyze mission requirements for payload and propulsion modes across all mission phases
Define the power subsystem architecture based on mission analysis
Specify requirements for the power subsystem, PCDU, battery unit, solar arrays, and SADA
Interact with battery, solar array, PCDU, and SADA providers and other subsystem teams
Produce documentation based on architecture, analysis, and unit specifications
Develop subsystem AIT according to the architecture
Define and accept EGSE
Work end-to-end from design and development to AIT on the SiltaSat project

Requirements

What you’ll need

Minimum 10 years in power systems engineering or related fields within the GEO space industry, preferably on large satellites
Professional experience across the full lifecycle of power systems subsystems
Ability to analyze data, derive conclusions, and manage, review, and approve design documentation and changes
Comfortable working with external vendors, consortium partners, and as part of a team
Fluent written and spoken English
Security clearance may be required for certain positions, in accordance with applicable law and company policies

Benefits

Comp & perks

Challenging but rewarding environment
Ambitious and supportive network of people
Lunch vouchers
Events and parties
Occupational health care
Additional health insurance
Team activities including running, climbing, ping pong, and board games
Relocation and integration support into Finnish society