Senior Power System Engineer

ReOrbit; Helsinki; On-site; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Lunch vouchers

Occupational health care

Health insurance

Relocation support

Team activities

Job summary

ReOrbit in Helsinki is looking for a Senior Power Systems Engineer to lead the development of innovative satellite power systems. You will engage in end-to-end processes including design, requirements analysis, and testing, collaborating with a dedicated team.

This role demands extensive experience in the GEO space industry. We foster a dynamic and inclusive culture, offering benefits like lunch vouchers and relocation support.

Qualifications

• Minimum of 10 years' experience in power systems engineering, ideally in the GEO space industry.
• Knowledge of full lifecycle of power systems subsystems.
• Ability to derive conclusions from data and manage design documentation.

Responsibilities

• Analyze mission requirements for Power Subsystem.
• Define specifications for various power system components.
• Develop AIT (Integration & Test) based on architecture.

Skills

Power systems engineering

Data analysis

Stakeholder interaction

Team collaboration

Fluent English

Job description

Join our mission to redefine satellite communications by delivering GEO capabilities in a smaller, faster, and more cost-effective package through the SiltaSat project.

As a Senior Power Systems Engineer, you’ll be at the heart of our Small Satcom evolution, working end-to-end—from design and development to AIT—alongside a team of experts.

Responsibilities:

• Mission requirements analysis (Payload & Propulsion modes across all mission phases).

• Architecture definition of the Power Subsystem (based on mission analysis).

• Requirement specifications for:

  • Power Subsystem

  • PCDU (Power Control & Distribution Unit)

  • Battery unit

  • Solar Arrays

  • SADA (Solar Array Drive Assembly)

• Stakeholder interactions:

  • Providers (Battery, Solar Array, PCDU, SADA)

  • Other subsystem teams

• Documentation: Based on architecture, analysis, and unit specifications.

• AIT (Integration & Test) development:

  • Subsystem AIT (per architecture)

  • EGSE (Electrical Ground Support Equipment) definition & acceptance.

Skills and Requirements

• Minimum of 10 years' working within power systems engineering or similar areas within the GEO space industry, preferably on large satellites.

• Knowledge and professional experience of the full lifecycle of power systems subsystems.

• Ability to analyse data, derive conclusions, and manage design documentation as well as review and approve design changes

• Comfortable working closely with external vendors and consortium partners

• Enjoys working collaboratively as part of a team

• Fluent written and spoken skills in English

What does ReOrbit do?

ReOrbit builds the foundation for the next generation of space applications by transforming satellites into truly intelligent, interconnected platforms, defined by software. Our satellite design philosophy revolves around the idea that satellites must network, communicate with each other and thus improve mission efficiency. How can this be achieved? Thanks to a flexible software-first architecture, where all these aspects are dealt with upfront in the mission concept, as integrated functionalities.

ReOrbit’s top-notch team of software engineers and system architects develop in-house software, procure hardware from the best-in-class suppliers, and seamlessly integrate the components to create flexible and secure satellites. Today, we are a rapidly growing company building a very strong multidisciplinary team to support our activities. We are headquartered in Helsinki, Finland with subsidiaries in Bristol, UK, Bariloche, Argentina, and Bangaluru, India.

Working at ReOrbit

At ReOrbit, we are focused on building a strong team as we believe nothing can be accomplished without innovative, humble and curious minds working together on a common goal. We’re all about fostering an inclusive, dynamic environment where equality and diversity are our strength.

We offer

• Challenging but rewarding environment – you will thrive if you are always reflecting on how to make things better. Your ideas will be heard.

• Ambitious and supportive network of people, who are motivated to change the space industry, bringing expertise from both classic and new space .

• Benefits such as lunch vouchers, events, parties, occupational health care andadditional health insurance- but most importantly a possibility to be a part of a unique and diverse team, connected by similar mindset and sense of humor.

• We like to spend time together! You can choose activities whichever is to your liking – runOrbit, climbOrbit; become ping pong or board games champion.

• We support relocation and integration into Finnish society.