Vulnerability Researchers / Security Researchers

About you

You are a hands-on Vulnerability Researcher or Security Researcher with experience discovering, analyzing, and exploiting vulnerabilities in complex systems. You have a strong understanding of reverse engineering, OS internals, and modern exploitation techniques, and can develop exploits, proof-of-concept code, and research tools to validate your findings. You are proactive, technically curious, and able to conduct vulnerability research independently in a full-time remote environment.

About the project

We are a Barcelona-based R&D center looking for Vulnerability Researchers / Security Researchers to join our team. The role focuses on hands-on vulnerability research, including finding and exploiting vulnerabilities in complex systems such as browsers, kernels, mobile and desktop operating systems. We offer full-time remote work as well as relocation opportunities to Barcelona. Flexible working hours are supported depending on productivity and time zones.

Your area of responsibility

• Detect, analyze, and exploit vulnerabilities;
• Conduct vulnerability research across browsers, kernels, mobile and desktop operating systems, and other complex software;
• Understand the technical details of vulnerabilities and assess their real impact;
• Develop exploits, proof-of-concept code, scripts, and software modules to validate vulnerabilities;
• Perform reverse engineering and binary analysis as part of vulnerability research;
• Reverse-engineer security patches to better understand vulnerabilities;
• Use fuzzing and other research techniques to discover vulnerabilities;
• Effectively communicate vulnerability findings and their technical impact;
• Assist in the development of tools for vulnerability and security research.

Skills and requirements

• Proven hands-on experience in vulnerability research and vulnerability exploitation;
• Experience in exploit development;
• Experience in finding vulnerabilities in complex systems;
• Experience with reverse engineering;
• Knowledge of OS internals;
• Knowledge of modern exploitation techniques;
• Experience researching at least one of the following areas: browsers, kernels, mobile OSes, desktop OSes, or embedded systems;
• Experience with platforms such as Windows, Linux, macOS, iOS, or Android;
• Ability to work independently in a remote environment;
• Availability for full-time work.

Will be a plus

• Published CVEs or other proven records of discovered vulnerabilities;
• Experience finding and exploiting vulnerabilities in browsers or OS kernels;
• Experience with fuzzing;
• Participation in CTFs, security competitions, or security conferences;
• Bug bounty or independent vulnerability research experience;
• Published security research, technical write-ups, PoCs, or research tools;
• Offensive security background;
• Academic degree in Computer Science, Mathematics, or Physics.