Careers at ReactiveZero

Make cybersecurity
your craft.

ReactiveZero is a cybersecurity consultancy spanning offensive security, defensive engineering, and advisory. You'll work on real engagements alongside practitioners who hold a high bar, share what they know, and genuinely enjoy the work.

Real engagements Client work across offense, defense, and compliance — from day one, not someday.
Generous mentorship Seasoned specialists who teach as naturally as they test.
Room to grow Early ownership, honest feedback, and support for certifications and research.

Positions

2

Cybersecurity Sales — Offensive Security

Sales & Growth Remote · Benelux

Sell offensive security the way it's actually delivered — technical, credible, no fluff. Dutch-speaking preferred; own the Benelux market as an employee or freelancer (ZZP).

Open Application — All Profiles

Cybersecurity & Engineering Remote

Don't see your role listed? Pitch us. Pentesters, engineers, analysts, advisors — if you're good at what you do, we want to hear from you.

Internships

2

Graphic Design Intern

Brand & Design Remote Flexible

Shape how ReactiveZero looks — help define our brand and design the LinkedIn posters, banners, and logos that carry it.

Content Writer Intern — IT & Cybersecurity

Content Remote Flexible

Turn deep technical work into content people actually read — blog posts, LinkedIn content, and research write-ups.