Senior Red Teamer

NVISO Security; Brussel; Hybride; EUR 90 000 - 130 000; Plein temps

Avantages offerts par ce poste

Training budget 10,000€

Company car and Belgian fuel card

Flexible working hours

Résumé du poste

NVISO Security seeks a Senior Red Teamer to join our security practice in Belgium. You will drive engagements from reconnaissance to objective-focused actions, emulating attacker techniques across the kill chain in production-like environments.

The role calls for deep red-team expertise, strong English communication, and a track record of delivering tailored security improvements for diverse clients.

Qualifications

• 2+ years of red team engagement experience.
• Knowledge of platforms, operating systems, software, networks.
• Familiarity with MITRE ATT&CK and Unified Kill Chain.
• Experience with post-exploitation using command and control frameworks (e.g., Cobalt Strike).
• Certifications such as CRTP/CRTE/PACES/CRTO/OSEP/OSCE.
• Strong English communication; Dutch or French desired.

Responsabilités

• Execute target-driven engagements, from non-stealth red teams to red/purple teaming and TIBER/TLPT exercises.
• From recon to action on objectives by emulating tactics, techniques, and procedures across the Kill Chain.
• Help clients in different sectors improve security posture through tailored recommendations.
• Fuse technical and non-technical skills to communicate with stakeholders at different levels.
• Perform research and development to improve tradecraft and methodology.
• Craft payloads, execute phishing, conduct physical breaches or social engineering, and compromise critical systems in production environments.

Connaissances

Red team experience

Security fundamentals

Excellent communication

Formation

Security certifications (CRTP, CRTE, PACES, CRTO, OSEP, OSCE)

Outils

Cobalt Strike

Description du poste

You have a strong interest in cyber security and believe the following to be applicable to you?

Who are we?

It all starts with the mission: NVISO is here to protect European society from potentially devastating cyber attacks! This means we offer cyber security services to private and governmental organizations to help them better prepare for, prevent, detect and respond to cyber security incidents.

All of this is built on four fundamental values that define who we are: We are Proud, We Break Barriers, We Care and No BS!

Tasks

As a Senior Red Teamer located in Greece, you will be focusing on those tasks:

• Execute target-driven engagements, ranging from non-stealth red teams to red/purple teaming and even full-fledged TIBER/TLPT exercises;
• Bring these engagements to fruition, from reconnaissance to action on objectives by emulating tactics, techniques, and procedures across the (Unified) Kill Chain;
• Help clients in different sectors improve their security posture in terms of prevention, detection, and response by providing tailored recommendations;
• Fuse technical and non-technical skills to communicate with stakeholders on different levels;
• Perform research and development to continuously improve our tradecraft and methodology;
• Get to craft payloads, execute phishing attacks, conduct physical breaches or social engineering, compromise critical systems and services in production environments.

Requirements

• You hold citizenship in one of the 32 NATO member states.
• 2+ years of experience executing red team engagements
• Good understanding of "the basics": different platforms, operating systems, software, communications, and network protocols
• Knowledge of the Unified Kill Chain, MITRE ATT&CK, and other principles relevant to adversary emulation
• Experience with post-exploitation using command and control frameworks, in particular those used by real adversaries, such as CobaltStrike
• Purple team experience is a plus
• Experience with payload crafting is a plus (C++/C#, Win32 API, AV/EDR evasion, etc.)
• Proven skillset through relevant certifications and courses (CRTP, CRTE, PACES, CRTO, OSEP, OSCE, etc.)
• Positive, team and mission-oriented attitude
• Excellent communication skills, both verbal and written (English required, Dutch or French desired)

Soft skills

• Being able to work independently, keep track of your priorities;
• Strong interpersonal and verbal/written communications skills that enable the ability to work; effectively in a collaborative team environment across the entire company;
• Positive, team and mission-oriented attitude;
• Ability to prepare and present your work to your colleagues;
• Team player who works well under the occasional moments of pressure.

Benefits

At NVISO, we care. We are committed to offering you a highly competitive remuneration package including financial and non-financial components:

• A training budget of 10.000€ and 10 days every 2 years
• Company car and Belgian fuel card
• Working and learning from the best people in the European cyber security industry. We have multiple SANS Instructors working at NVISO, our staff has presented at popular hacking conferences (BlackHat, BruCON, OWASP, etc) and all of our technical staff can acquire deep technical security certifications (GSE, GXPN, GREM, GCFA, OSCP, etc)
• An entrepreneurial and agile working environment, where you will be challenged, stimulated and supported in driving new initiatives (either through internal innovation or by improving our service offering), without losing sight of having fun!
• Regular team-building and fun events throughout the year;
• Our commitment to coach and counsel you and help you grow; each employee receives a personal coach within the team, whose role is to ensure your well-being and helps you grow in your career!
• Flexible working hours, working from home and even the possibility to work from abroad;
• Flex Income Plan
• 32 paid leave days

Disclaimer on the Use of AI Tools in the Application Process

Please be aware that the creation and submission of application documents (e.g. CV, cover letter, case studies, etc.) using AI-powered tools is only permitted to a limited extent.

Our expectations:

• Application documents must authentically reflect your own qualifications, personality, and motivation.
• The use of AI for supportive purposes (e.g. spell-checking, improving wording) is acceptable.
• Fully generated application documents created by AI without personal adaptation or review are not permitted.
• Under no circumstances may NVISO information, data, or documents be uploaded to or processed by external AI tools.

We reserve the right to exclude applications from the selection and interview process that are clearly created primarily or exclusively by AI and show no recognizable personal input.

The purpose of this policy is to ensure a fair and transparent recruitment process and to obtain an authentic impression of our applicants.