Penetration Tester, Vector Command, Vulnerability Management and External Network

Rapid7, Inc; Belfast; On-site; GBP 45,000 - 65,000; Full time

Job summary

A cybersecurity firm in Belfast is seeking a skilled penetration tester to join their Global Services team. You will engage in external network penetration testing, managing vulnerabilities, and collaborating closely with Red Team operators to enhance client security. Ideally, you possess over three years in a technical security role, relevant certifications, and excellent communication skills. Join us to leverage your expertise and contribute to protecting numerous clients against evolving threats.

Qualifications

• 3+ years in an active technical security role.
• Experience with external network penetration testing.
• Ability to convey technical concepts clearly.

Responsibilities

• Deliver Rapid7's Vector Command Continuous Red Teaming service.
• Conduct external network penetration testing and manage vulnerability-scan dashboards.
• Collaborate with Red Team operators in setting attack objectives.

Skills

Technical security experience

Knowledge of Cybersecurity standards

Bug Bounty experience

Communication skills

Report writing

Experience with Red & Purple Teams

Education

Certifications such as GPEN, CPTS, OSCP, CREST

Job description

Do you enjoy attacking networks? Do you enjoy sifting through large amounts of attack surface, crafting novel attack chains to breach a client’s perimeter, gaining initial access, laterally moving, and demonstrating impact, all while evading security teams and their controls? As a penetration tester on the Global Services team at Rapid7, you will help our clients improve their security posture through your technical skills and knowledge of both offensive and defense strategies.

About the Team

Vector Command is an always‑on Red Team operation supporting multiple customers. As part of a specialized team, you will emulate real adversaries by performing large‑scale reconnaissance, identifying exposed or high‑value assets, and discovering weaknesses that can be leveraged for compromise.

After gaining access, the team continues with post‑compromise objectives to demonstrate real impact, evade detection, and assess the effectiveness of security controls. This service evaluates far more than vulnerabilities—it tests the customer’s entire security posture and defense‑in‑depth strategy.

In addition to offensive operations, you will support customers through external attack surface analysis, exposure reconnaissance, integration of accounts and tools, preparation of monthly Red Team reports, and prioritization of customer requests. Daily collaboration with Vector Command operators is essential, as is maintaining awareness of banked vulnerabilities, shifts in customer attack surfaces, and changes across customer environments.

About the Role

Your primary responsibility is to deliver Rapid7’s Vector Command Continuous Red Teaming service. In this role, you will conduct external network penetration testing and manage vulnerability‑scan dashboards, exploiting vulnerabilities, identifying the impact of exposures, and then searching for vulnerabilities that automated tooling may miss. The focus is on continuous perimeter testing to identify attack vectors that could lead to a breach. Specifically, your focus will be to:

• Manage automated vulnerability‑scan data across numerous customers, identifying and validating vulnerabilities that can be used to gain initial access into an organization.
• Perform external network penetration testing activities across a large attack surface, searching for vulnerabilities and misconfigurations that automation often misses.
• Upon successful exploitation, work with your Vector Command team to evaluate the impact through post‑compromise breach simulation.
• Collaborate closely with a team of Red Team operators, participating in daily meetings to establish attack objectives and operational direction.
• Develop and maintain positive relationships with clients and understand their business and needs.
• Create additional value for clients through continual insights and consultative advice based on experience with the client, their industry, established standards, and leading practices.

The skills and qualities you’ll bring include:

• 3+ years in an active technical security role.
• Knowledge of Cybersecurity standards and industry best practices.
• Bug Bounty experience, identifying novel vulnerabilities in arbitrary internet‑facing attack surfaces.
• The ability to translate technical concepts and conveymla them to nonક્ષા security personnel.
• Technical competencies, including previous technical consulting experience.
• High‑quality report writing and peer reviewing.
• Certifications such as GPEN, CPTS, OSCP, CREST.
• Experience with Red & Purple Teams.
• Excellent communication skills both with internal and external stakeholders.
• Collaborative mindset, contributing to knowledge sharing and cross‑training.
• Demonstrate a commitment to the "end‑to‑end" testing process, from the initial pre‑engagement planning to providing అంద accountable support during the final remediation phase.
• Core Value Embodiment: Embody our core values to foster a culture of excellence that drives meaningful impact and collective success.

We know that the best ideas and solutions come from multi‑dimensional teams. That’s because these teams reflect a variety of backgrounds and professional experiences. If you are excited about this role and feel.is experience can make an impact, please don’t be shy – apply today.

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About Rapid7

At Rapid7, our vision is to create a secure digital world for our customers, our industry, and our communities. We do this by harnessing our collective expertise and passion to challenge what’s possible and drive extraordinary impact. We’re building a dynamic and collaborative workplace where new ideas are welcome.

Protecting斗地主1000+ customers against bad actors and threats means we’re continuing to push the envelope just like we have been doing for the past 20 years. If you AF ready to solve some of the toughest challenges in cybersecurity, we’re ready to help you take command of your career. Join us.