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ReOrbit is looking for a motivated Senior Security Engineer to join our team at our HQ in Helsinki, Finland.
You will be responsible for ensuring security of our IT infrastructure and help in securing our satellite systems. This will require understanding and applying both offensive and defensive security skills.
It's an exciting chance to join a dynamic start-up, with the opportunity to make a real impact, to reach our goal of pushing the boundaries of space data transfer.
Responsibilities
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 a subsidiary in Bariloche, Argentina.
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
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.
Today we are a rapidly growing company and building a very strong multidisciplinary team to support our activities. We are headquartered in Helsinki, Finland with a subsidiary in Bariloche, Argentina.
Join us in our journey of building software-enabled satellites for secure communications
and, thus, creating the most compelling in-space data flow company of the new space era.
You will be responsible for ensuring security of our IT infrastructure and help in securing our satellite systems. This will require understanding and applying both offensive and defensive security skills.
It's an exciting chance to join a dynamic start-up, with the opportunity to make a real impact, to reach our goal of pushing the boundaries of space data transfer.
Responsibilities
- Design and implement security solutions to protect IT infrastructure
- Monitor and respond to security incidents and alerts
- Perform security testing of our internal systems and products
- Automate preventive, detective and reactive security controls
- Develop security architecture, security tooling and use of security service providers
- Develop and maintain security documentation
- Identify cybersecurity threats and their mitigations
- Collect and analyze threat intelligence
- 5+ years of experience in cyber security
- Offensive and defensive security experience
- Strong understanding of Microsoft 365 security
- Microsoft security certification is a plus
- Azure and AWS security experience
- Understanding of identity and access management (IAM), endpoint protection, network security and other cybersecurity domains
- Experience with security architecture concepts and implementation technologies
- Security testing skills
- Experience with DevSecOps methods and tools is a plus
- Threat modeling and threat hunting experience is a plus
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 a subsidiary in Bariloche, Argentina.
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, find some experiences about relocation here
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.
Today we are a rapidly growing company and building a very strong multidisciplinary team to support our activities. We are headquartered in Helsinki, Finland with a subsidiary in Bariloche, Argentina.
Join us in our journey of building software-enabled satellites for secure communications
and, thus, creating the most compelling in-space data flow company of the new space era.
Key Skills
Ranked by relevance
cybersecurity
identity and access management
network security
cyber security
aws
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- Posted
- Apr 26, 2025
- Type
- Full-time
- Level
- Mid-Senior
- Location
- Helsinki
- Company
- ReOrbit
Industries
Defense
Space Manufacturing
Categories
Information Technology
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3 roles aligned with this opportunity
View Job Details
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Mission Software Engineer
2026-07-06
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Not Applicable
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Engineering
View Job Details
Related
Network Infrastructure Engineers (m/f/d)
2026-07-03
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DevOps Engineer - Infrastructure & Deployment (Production Systems)
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