Cybersecurity Expert at FOI

The Total Defence Research Institute (FOI) is a government agency conducting world-leading research in defense and security to support Sweden's military and civilian defense. The research spans several areas, including underwater, cyber defense, space, electronic warfare, sensor systems, civil defense, CBRNe (chemical, biological, radiological, nuclear, and explosive materials), military platforms including weapons and protection, as well as security policy analyses. FOI's research plays a key role in building Sweden's defense capability.

Do you want to help improve Sweden's cybersecurity? Then FOI could be your new workplace! We offer a balanced work life, a developing work environment, and a socially important job!

About the Position

As a cybersecurity expert with us, you will build knowledge and develop methods and techniques used to identify and exploit vulnerabilities in software. The application of knowledge occurs through work on concrete cybersecurity issues for our clients. This may include analyses and tests in existing and new systems to find vulnerabilities, identify the consequences of discovered vulnerabilities, and propose security-enhancing measures. You will also have the opportunity to work with the cyber facility Crate regarding both the development and execution of experiments, exercises, and evaluations.

About the Unit

You will be part of the cybersecurity unit, which belongs to Cyber Defense and Command Technology.

Do you have the competence profile we need?

Requirements

We are looking for someone who has:

• experience in software development with C and C++, in Windows, Linux, and embedded systems
• understanding of the relationship between source code (high-level and assembly)
• compilation and linking
• object code
• dynamic and static libraries
• file structures (ELF/PE)
• an interest in IT security, expressed through hobby projects, completed vulnerability analyses, participation in CTFs, etc.
• a degree in computer engineering, or equivalent education or skills that FOI assesses as equivalent.

Personal qualities we highly value for this position are a strong ability to analyze and solve complex problems, to take initiative, and to collaborate with others.

Meritorious

Knowledge and practical experience in the following are meritorious but not required:

• development of exploits/shellcode
• low-level Windows and Linux, internals/kernel
• penetration testing
• code reviews from a security perspective
• software reverse engineering
• development of antivirus/endpoint security software
• development and analysis of network protocols, TCP/UDP/IP, and up to application level.

What do we offer you?

The Total Defence Research Institute (FOI) is a government agency conducting world-leading research in defense and security to support Sweden's military and civilian defense. We offer a unique workplace where you have the opportunity to work on what is important for total defense and society as a whole. The research is applied both within defense agencies and among civilian actors and plays a crucial role in building a relevant and effective defense capability.

We consciously work for a good work environment with a good balance between work and private life. In addition, we offer a range of benefits. Read more about what it is like to work with us: https://www.foi.se/jobba-hos-oss.html (https://www.foi.se/jobba-hos-oss.html)

The position is a permanent employment that may begin with a six-month probationary period.

Do you want to help seek answers for a safer world?

Welcome with your application in the form of a CV and cover letter via the application button no later than March 1, 2026!

For more information about the position, please contact Jonas Hallberg. Union representatives are Niclas Wadströmer (Saco-S) and Anette Frid (OFR/S – ST) All can be reached at 08-555 030 00.

As the position is classified, Swedish citizenship is required. A security clearance with a background check will be conducted before employment according to the Security Protection Act (2018:585). For the security clearance, certified copies of relevant education and service certificates will be requested.

FOI is an authority, and submitted application documents become public records that can be disclosed to third parties upon request according to the Public Access to Information and Secrecy Act.

Offers from recruitment companies are not welcome.