Mission & Product Security Lead - Satellite Systems

Reorbit; Bristol; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading space technology company is seeking a Mission & Product Security Owner in Bristol. This role involves acting as the security authority for satellite missions, ensuring compliance with security standards from design through operations. The ideal candidate has 8+ years in cyber security and proven experience in managing security risks. This position offers an opportunity to join a dynamic team focused on creating innovative, secure satellite systems. A supportive work environment and diverse teams await you.

Benefits

Challenging but rewarding environment

Supportive network of motivated people

Inclusive and dynamic work culture

Qualifications

• 8+ years of experience in cyber security or related fields.
• Hands-on experience in regulated or safety-critical environments.
• Proven experience owning security risks with end-to-end accountability.

Responsibilities

• Acting as the Security Manager for satellite missions.
• Owning mission security plans across design and operations.
• Ensuring compliance with cyber security and space protection standards.

Skills

Cyber security

Product security

Mission/system security

Threat modeling

Security risk management

Requirements management

Job description

ReOrbit is looking for a Mission & Product Security Owner for Satellite Systems. The person will act as the security authority for ReOrbit satellite missions and products, ensuring that security expectations are met across the full life cycle from design through launch and operations.

This is an exciting opportunity to join a fast-growing space company and play a critical role in building secure, software‑defined satellites for demanding commercial and sovereign missions.

Responsibilities

• Acting as the Security Manager for satellite missions and ReOrbit satellite systems
• Owning mission security plans and security commitments across design, software, AIT, launch, and operations
• Defining, managing, and maintaining product and mission security requirements with customers and stakeholders
• Maintaining threat models and mission‑specific security risk registers
• Embedding security by design principles into satellite, ground, and manufacturing engineering
• Assessing and managing supply‑chain and third‑party security risks
• Monitoring, assessing, and responding to product and supply‑chain vulnerabilities
• Ensuring compliance with relevant cyber security, space, and classified information protection standards
• Acting as a trusted security counterpart for sovereign and classified customers
• Approving, blocking, or requiring remediation for satellite deliveries, launches, and customer acceptances on security grounds

Skills and Requirements

• 8+ years of experience in cyber security, product security, or mission/system security
• Hands‑on experience working closely with engineering teams in regulated or safety‑critical environments
• Proven experience owning security risks and requirements with end‑to‑end accountability
• Strong skills in threat modeling, security risk management, and requirements management
• Solid knowledge of ISO 27001 / ISO 27002, NIS2, or equivalent framework
• NIST 800‑53 or related NIST standards
• Requirements for protecting classified information (e.g. KATAKRI, EU/ESA/NATO R/C/S)
• Space security standards (e.g. ECSS‑E‑ST‑80C)
• Background in aerospace, space, defence, telecom, or similar industries

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. Andmost importantly a possibility to be a part of a unique and diverse team, connected by similar mindset and sense of humor.

Location of the role

• This role can be based either at our HQ in Helsinki. We support relocation to Helsinki, 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.

Join us in our journey of building software enabled satellites for secure communicationsand, thus, creating the most compelling in space data flow company of the new space era.

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 inhouse 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 andBariloche, Argentina.

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.