Senior Red Team Operator

About the Position

Senior Red Team Operator

A role in the Global CISO Office that’s as much about breaking things as it is about building resilience.

Are you passionate about cybersecurity and driven by an adversarial mindset? Do you want to test a global financial institution against sophisticated, real-world threats?

As a Senior Red Team Operator at ING, you will be part of a hands-on team focused on strengthening the bank's security posture. We think like a criminal to test our people, processes, and technology on a global scale. Your mission will be to simulate the tactics, techniques, and procedures (TTPs) of advanced threat actors, providing critical assurance to the business and its leadership.

This is not a standard penetration testing role. We are looking for a specialist in red teaming who can plan and execute long-term, intelligence-led campaigns while maintaining exceptional operational security (OPSEC).

Responsibilities

• Lead advanced red team engagements. Design and conduct complex, long-run red team campaigns that mirror the sophistication of top-tier, intelligence-led exercises. You will test our global enterprise, including on-premise, cloud (Azure, Google Cloud), and hybrid environments.
• Execute the full attack lifecycle. Run objective-driven, end-to-end red team campaigns, from initial access to data exfiltration, while employing stealth to evade our Blue Team.
• Develop and maintain red team infrastructure. Build, operate, and customize the team's command-and-control (C2) infrastructure. You will be expected to go beyond using standard tools like Cobalt Strike or Sliver, developing bespoke capabilities to ensure operational success.
• Drive defensive improvements through purple teaming. Partner directly with our SOC and defensive teams in collaborative purple team exercises to tune detection rules, improve playbooks, and enhance ING’s defensive capabilities.
• Develop custom tooling to bypass advanced defences. Research emerging TTPs and create your own tools, implants, and loaders in languages like C++, C#, or Go to bypass modern security controls like EDR and application allow-listing.
• Deliver actionable insights to the business. Author comprehensive, narrative-style reports that translate complex technical findings into clear, actionable recommendations for executive stakeholders.

Requirements

• 5+ years of hands-on experience in a dedicated red team role.
• Strong development skills in at least one low-level language (e.g., C++, C#, Go, Rust) for custom tool development, and proficiency in a scripting language (e.g., Python, PowerShell).
• Deep experience attacking complex enterprise environments, including Active Directory and major cloud providers (Azure, AWS, GCP).
• A strong Operational Security (OPSEC) mindset with a proven ability to conduct covert, objective-driven operations.
• Advanced offensive security certifications, such as OSEP, OSCE/OSEE, CREST CCSAS, GXPN, or CRTO, are a significant plus.
• Fluent in English, both verbally and in writing.

We Offer

• Flexible work model: Work from home or ING MAD as per your preference.
• Restaurant card to cover lunch expenses.
• Comprehensive health and life insurance for you and your family.
• Flexible remuneration model with additional benefits like nursery, transport card, and training aids.
• Transport allowance to help you commute to the office.
• Pension plan available after 1 month of employment.

About the Company

Discover ING Hubs Spain

We’re building something exciting-and we want you to be part of it.

ING is launching the new member of ING Hubs in Spain, an integral part of ING in charge of designing and delivering important technological and operational solutions to make banking frictionless for our customers. ING Hubs play a key role in our ‘Growing the difference’ strategy to become the best European bank. This will be our sixth global hub, joining a network of over 13,000 professionals in the Philippines, Poland, Romania, Slovakia, Türkiye, and Spain.

What makes us different?

• Tech-first mindset: We’re not just a bank-we’re a tech company that happens to do banking. Our new hub will be a center of excellence for scalable, fast, and secure technology.
• Global impact: You’ll be working on solutions that serve more than 34 million customers in over 38 countries.
• Agile approach: ING was the first bank to adopt agile at scale. We continue to evolve with a collaborative, cross-functional way of working.
• Sustainability at the heart of what we do: We have a role to play in defining new ways of doing business that align economic growth with positive environmental and social impact.

At ING, we believe in diversity, inclusion, and belonging. We’re proud of our international teams and are committed to creating an environment where everyone can thrive. We value authenticity, collaboration, and continuous learning.

We’re looking for curious minds, bold builders, and passionate problem-solvers. If you’re looking for a place to find new ways to drive efficiency and provide superior customer value, where your ideas matter, and where you can grow with purpose-we’re looking forward to meeting you.