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: Power Subsystem (based on mission analysis).

• Requirement Specifications: Power Subsystem, PCDU, Battery Unit, Solar Arrays, SADA.

• Stakeholder Interactions: Providers (Battery, Solar Array, PCDU, SADA) and other subsystem teams.

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

• AIT Development: Subsystem AIT (per architecture) and EGSE definition & acceptance.

Skills and Requirements

• Experience: Minimum 10 years in power systems engineering or related fields within the GEO space industry, preferably on large satellites.

• Lifecycle Expertise: Professional experience across the full lifecycle of power systems subsystems.

• Analytical Skills: Ability to analyze data, derive conclusions, and manage/review/approve design documentation and changes.

• Collaboration: Comfortable working with external vendors, consortium partners, and as part of a team.

• Language: Fluent written and spoken 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 and additional 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.

Please, submit your application as soon as possible - we are excited to hear from you and can’t wait to discover your unique skills and experiences.

For agencies: We do not accept unsolicited CVs for our open vacancies. Any CV sent to our team unsolicited will reserve us the right to pursue a candidate without obligation to the sender. All candidate submissions must be conducted through our official channels and in accordance with our terms of engagement.