Satellite Security Architect
Confirmed on the employer's own hiring board on Oct 28, 2026. First seen by Alion on Sep 29, 2026. ReOrbit scores A on the Alion truth index.
ReOrbit is looking for a Satellite Security Architect to join our team.
As our Satellite Security Architect, you will define the trust, identity, security, and cryptographic foundations of our end to end space based computing platform, built to operate autonomously, at global scale, and securely for the quantum era.
You will work closely with SW and HW engineers, system architects and security stakeholders to create practical security designs and architecture that meet the long term security objectives of our space platform.
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 the security architecture for a distributed satellite mesh
Define PKI, identity, and trust models for intermittently connected systems
Lead our post-quantum cryptography (PQC) strategy
Define hardware root-of-trust, secure provisioning, and key management architecture for satellite systems
Integrate with 3rd party software stacks relying on our hardware
Design security architecture for a containerized, cloud-based ground segment
Ensure crypto agility and long-term resilience
Define and enforce trust boundaries in the design
Skills and Requirements
Strong experience in security architecture and distributed systems
Deep knowledge of PKI, key management, secure protocols and authentication systems
Strong understanding of modern cryptography and emerging post quantum cryptography standards
Experience in cloud, edge, telecom or IoT environments
Satellite, aerospace, Delay-Tolerant Networking (DTN), or mission-critical distributed systems experience is a bonus
Experience with HSMs, secure elements, or hardware roots of trust is a bonus
Experience with 5G / NTN / D2D security is a bonus
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 a subsidiaries in Bristol, UK, Bariloche, Argentina and Bengaluru, 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 .
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.
The Company may require a security clearance for certain positions. Any such security clearance will be conducted in accordance with applicable law and the Company's relevant policies
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.