Cybersecurity Engineer

VisionSpace; Figueira da Foz; On-site; EUR 70,000 - 90,000; Full time

Job summary

VisionSpace is seeking a cybersecurity professional with an offensive security mindset to tackle high-impact challenges in Space and Defense. You will dig deep into systems, protocols, and code, leading security research, vulnerability assessments, and exploit development when needed.

The role requires a PhD or 5+ years of hands-on experience, strong Python and C skills, and the ability to work across multidisciplinary teams in demanding environments.

Qualifications

• PhD in a relevant field or 5+ years of relevant hands-on experience in offensive security, vulnerability research, exploit development, or penetration testing.
• Strong hands-on experience in offensive security, security research, vulnerability assessment, or penetration testing.
• Solid programming skills in Python and C.
• Experience with networking protocols.
• Hacker mindset: creative, persistent, curious, and able to think beyond conventional approaches.

Responsibilities

• Lead or contribute to security research, vulnerability assessments, and penetration testing activities.
• Identify, analyze, and validate vulnerabilities in complex systems and applications.
• Support or drive exploit development for discovered weaknesses.
• Produce clear, high-quality technical documentation and customer-facing reports.
• Contribute to the delivery of cybersecurity projects and services across diverse domains.
• Collaborate with multidisciplinary engineering teams to improve security of advanced systems.

Skills

Python

C

Networking protocols

Hacker mindset

Mental flexibility

Analytical skills

Communication skills

Team collaboration

Education

PhD in a relevant field

Job description

At VisionSpace, we design, build, and integrate enterprise-grade solutions for the Space and Defense sectors. As a consulting, technology, and engineering partner, we bring together deep expertise across Aerospace, Cybersecurity, Autonomous Systems, and Machine Learning to deliver smart, resilient, and mission-critical solutions.

Our Motto: Our Playground is Space and Beyond

We help our customers shape the future of satellite operations by bringing automation, intelligence, and autonomy into complex systems.

The Role

We are looking for a cybersecurity professional with a true offensive security mindset, someone who is curious, technically sharp, mentally agile, and driven to understand how systems break so they can be made stronger.

This is not a role for someone who simply follows checklists. We want a creative problem-solver who adapts quickly, and enjoys digging deep into systems, protocols, and code to uncover the unexpected.

You may come from an academic or industry path:

• PhD in a related field, or
• 5+ years of relevant hands-on experience in offensive security, vulnerability research, exploit development, or penetration testing.

If you thrive in technically demanding environments and want to apply your expertise to high-impact challenges in Space and Defense, we would love to hear from you.

What You Will Do

As part of our cybersecurity team, you will:

• Lead or contribute to security research, vulnerability assessments, and penetration testing activities
• Identify, analyze, and validate vulnerabilities in complex systems and applications
• Support or drive exploit development for discovered weaknesses
• Produce clear, high-quality technical documentation and customer-facing reports
• Contribute to the delivery of cybersecurity projects and services across a variety of domains
• Collaborate with multidisciplinary engineering teams to improve the security posture of advanced systems

What We Are Looking For

We are seeking someone who combines strong technical depth with adaptability and curiosity.

Required

• PhD in a relevant field or 5+ years of relevant professional experience - Mandatory!
• Solid hands-on experience in offensive security, security research, vulnerability assessment, or penetration testing
• Strong programming skills in Python and C
• Experience working with networking protocols
• A hacker mindset: creative, persistent, curious, and able to think beyond conventional approaches
• High degree of mental flexibility and comfort operating in ambiguous, fast-moving technical environments
• Strong analytical and problem-solving skills
• Ability to work both independently and collaboratively
• Clear written and verbal communication skills
• Eligibility for NATO Security Clearance

What Will Make You Stand Out

• OSCP and/or other recognized industry certifications
• Experience in CTFs, Hack The Box, TryHackMe, or similar hands-on offensive security environments
• Background in exploit development or vulnerability research
• Knowledge of different software frameworks
• Strong understanding of programming concepts and paradigms
• Experience with Space Systems
• Knowledge of CCSDS standards

Why Join VisionSpace

This is an opportunity to work where cybersecurity meets space technology, on meaningful, technically challenging projects that push the boundaries of automation, resilience, and autonomous operations.

At VisionSpace, you will find:

• The opportunity to work on real-world, high-impact projects
• A technically strong and collaborative environment
• Exposure to cutting-edge challenges in Space and Defense
• The chance to shape and strengthen the security of advanced systems
• A team that values expertise, initiative, and innovation

Join Us

If you are an experienced offensive security professional with the technical depth, curiosity, and adaptability to tackle complex challenges, we invite you to join our team in Figueira da Foz.

VisionSpace Technologies GmbH, Robert-Bosch-Str. 7, 64293 Darmstadt, Germany, phone: [phone], email: [e-mail], will collect and securely store your resume and contact information solely for recruitment purposes. This data is managed in our Applicant Tracking System, which is fully compliant with EU data protection laws, including the General Data Protection Regulation (GDPR). We ensure your data is not shared with any third parties. For more details on how we manage your data and your rights under GDPR, please refer to our Privacy Policy.