Senior Security Engineer - Red Team

At BKN301, we build fintech solutions that enable banks, fintechs, and merchants to grow and innovate across emerging markets.

We’re a London-based financial technology group with offices in Milan, Doha, and San Marino, expanding globally.

We move fast, think globally, and act as one team — transforming ideas into real, scalable fintech solutions every day.

As a Senior Security Engineer on our Red Team, you will emulate adversarial tactics, techniques, and procedures (TTPs) to test and improve our defenses. You will conduct penetration tests, adversarial simulations, and vulnerability assessments to uncover weaknesses in our systems, applications, and processes. Your insights will help harden the security of our mission‑critical financial services.

• Adversarial Simulations: Simulate real‑world attacks to test the resilience of our BaaS platform, focusing on core banking, issuing, and acquiring services.
• Penetration Testing: Conduct penetration tests on applications, APIs, and infrastructure to uncover and report vulnerabilities.
• Threat Hunting: Identify and exploit vulnerabilities to simulate adversarial activity while ensuring findings are documented for remediation.
• Tool Development: Build and enhance internal tools to simulate advanced attack techniques.
• Collaboration: Work closely with the Blue Team and development teams to provide actionable recommendations to improve security controls.
• Research: Stay updated on the latest threats, vulnerabilities, and attack techniques, incorporating them into Red Team engagements.
• Reporting: Provide detailed reports on findings, including risk assessments and actionable remediation steps.

• Experience in penetration testing, ethical hacking, or Red Team operations.
• Strong knowledge of adversarial tools such as Metasploit, Cobalt Strike, Burp Suite, or custom scripts.
• Proficiency in scripting languages (e.g., Python, PowerShell, or Bash).
• Familiarity with cloud environments (AWS, Azure, GCP) and their security challenges.
• Knowledge of attack frameworks like MITRE ATT&CK.
• Good conversational and professional proficiency in English.
• Relevant certifications (e.g., OSCP, CRTP, CEH) are a plus.

• Strategic thinking with a bias for action.
• Strong analytical and problem‑solving skills.
• Ownership and accountability.
• Operational rigor and attention to detail.
• Strong communication and leadership across cultures.
• Curiosity, adaptability, and passion for innovation.

• Permanent, full‑time role.
• Fair and market‑aligned compensation.
• Dynamically international culture built on trust and collaboration.
• Real impact on global fintech transformation projects.
• Growth and learning opportunities within an innovative group.

• HR Introduction: A friendly chat with our HR team.
• Hiring Manager Interview: Discuss your experience and vision.
• Technical Evaluation: Show us your expertise.
• Team Fit Discussion: Ensure mutual alignment with our culture.

We’re proud to be an equal opportunity employer, committed to diversity and inclusion in all forms.