Added: 2026-06-10 12:36.28
Updated: 2026-06-13 19:05.04

Senior Security Consultant

Barcelona, Spain

Type: Cyber Security

Category: Cybersecurity Engineer

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Skill needed: Python, LLMs, C/C++, C#, AI.
Employer: Outpost24

Outpost24 is looking for a Senior Security Consultant!You will join our Offensive Security team within Ghost Labs in Europe (Karlskrona, Stockholm, Barcelona, Amsterdam, or Leuven).The team consists of experienced ethical hackers who work across a wide range of offensive security engagements. As a Senior Security Consultant, you will play a key role in delivering advanced security assessments, simulating real-world attack scenarios, and helping our customers understand and reduce their risk.You will work across different environments and technologies, including cloud platforms, applications, and emerging areas such as AI-driven systems.As a Senior Security Consultant, your key responsibilities will include:Delivering offensive security engagements, including penetration testing and advanced red team engagements, leveraging frameworks such as MITRE ATT&CK and TIBER-EU/DORAIdentifying and exploiting vulnerabilities across a wide range of environments and technologiesSupporting complex security assessments that require creative and non-standard approachesCollaborating with team members on challenging scenarios and actively contributing to knowledge sharingContributing to the continuous improvement of our tools, methodologies, and overall offensive security capabilitiesAs our ideal candidate, you:Have a strong technical background and a practical understanding of how attackers operate in real-world scenarios. You are comfortable working across different domains and adapting your approach based on the target and objectivesHave 5+ years of hands-on experience in offensive security (red teaming and/or penetration testing)Have a strong understanding of modern attack techniques and methodologiesAre experienced working with cloud environments and modern applicationsCan identify and chain vulnerabilities into meaningful attack scenariosHave scripting or programming experienceHave a curious mindset and a passion for securityAre a team player who is also comfortable working independently when neededSpeak fluent English, as this is our corporate languageIdeally, you also have experience or interest in:AI/LLM securityMobile application testingRelevant certifications (e.g., OSCP, OSEP, CRTO, or equivalent certifications demonstrating advanced offensive security skills)Programming in Python, C, C++, or C#But what’s in it for you?In return for your efforts, you will enjoy:Working on a variety of offensive security engagements across different domainsBeing part of a skilled and collaborative team within Ghost LabsOpportunities to grow through hands-on experience, training, and certificationsA flat organizational structure with high autonomy. You are not just a number. You will join an organization that offers a steep learning curve, where your contributions have a tangible impactA healthy work-life balance, with flexible working hours and a hybrid working environmentAn exciting opportunity to join our team in one of our EU Hubs (Karlskrona, Stockholm, Barcelona, Amsterdam, or Leuven), while enjoying the local perks and benefits of working in your chosen country!Like what you see and want to know more? Apply now!At Outpost24, we're dedicated to building a diverse and inclusive workplace, where attitude, values and willingness to learn are valued above all. So, if you're excited about this role but your professional experiences don't completely align with what we're looking for, we encourage you to apply anyway!
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