Technology Jobs in Brussels, Belgium (Now Hiring) — 227 open — Page 2

Senior Penetration Tester

Brussels, Brussels-Capital, Belgium · Hybrid

Mid level

<p><strong>Who are we?</strong></p> <p>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 gove…

Skills: Penetration Testing, Offensive Security, Social Engineering, Exploit Development, Process Exploitation

Senior Data Engineer Consultant

Brussels, Brussels-Capital, Belgium · Hybrid

Senior

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Data Architecture, Pipeline Design, Cloud Platforms, Distributed Computing, Data Modeling

Sopra Steria Group

Policy Officer - Digital Public Affairs

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sopra Steria offers tailored, end-to-end corporate technology and software solutions to help clients make bold choices and deliver results. Successfully so! With more than 56.000 colleagues in 30 coun…

Skills: Public Affairs, Policy Analysis, EU Legislative Process, Stakeholder Management, Technical Writing

Machine Learning Engineer

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Machine Learning, Deep Learning, Python, Scala, C++

Consultant Data Engineer

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Python, GCP, AWS, Azure, Docker

Senior Project Leader M/F

Brussels, Brussels-Capital, Belgium · Hybrid

$65k–$85k/yr

Senior+

Every moment counts. Especially those you live to the fullest. Welcome to Consort Group. For over 30 years, Consort Group has been helping companies leverage their data and infrastructure. It is backed by two leaders, Co…

Skills: Prince2 Project Management, Waterfall Methodology, Agile, Scrum, IT Project Governance

Senior Network Engineer H/F

Brussels, Brussels-Capital, Belgium · Hybrid

$60k–$75k/yr

Senior

Chaque moment compte. Surtout ceux que vous vivez à fond. Bienvenue chez Consort Group. Consort Group, accompagne depuis plus de 30 ans les entreprises dans la valorisation de leurs données et infrastructures. Elle s'app…

Skills: Extreme Networks, Cisco Routing & Switching, Network Segmentation, Disaster Recovery Planning, Network Monitoring

Senior Software Developer

Brussels, Brussels-Capital, Belgium · On-site

Senior

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Python, TypeScript, Node.js, Java, Flask

Data & Process Consultant

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Business Process Modeling, Data Modeling, Stakeholder Management, Data Analysis, KPI Definition

Machine Learning Engineer

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Machine Learning, Deep Learning, Python, Scala, C++

Consultant in Data Science

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Machine Learning, Artificial Intelligence, Statistics, Predictive Modeling, Operational Research

Senior Data Engineer Consultant

Brussels, Brussels-Capital, Belgium · Hybrid

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Data Architecture, Pipeline Design, Cloud Platforms, Distributed Computing, Data Modeling

Senior Consultant in Data science

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Machine Learning, Artificial Intelligence, Statistics, Predictive Modeling, Operational Research

Consultant Data Engineer

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Python, GCP, AWS, Azure, Docker

Data Analytics Consultant

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group born digital, augmented by data, enhanced by creativity, and driven by responsibility. We partner with clients to resolve challenges and ca…

Skills: Python, R, SQL, Microsoft Excel, Power BI

Senior Manager Cybersecurity

Brussels, Brussels-Capital, Belgium · Hybrid

Senior

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Cybersecurity Strategy, Risk Management, Compliance, Business Development, NIST CSF

Consultant Data Engineer

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Python, GCP, AWS, Azure, Docker

Senior Consultant in Cybersecurity

Brussels, Brussels-Capital, Belgium · On-site

Senior

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Cyber Risk, Cyber Strategy, Cyber Compliance, Cyber Operations, Cyber Resilience

Senior Consultant in Data science

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativit…

Skills: Machine Learning, Artificial Intelligence, Statistics, Predictive Modeling, Operational Research

Data Analytics Consultant

Brussels, Brussels-Capital, Belgium · On-site

Mid level

Company Description Sia is a next-generation, global management consulting group born digital, augmented by data, enhanced by creativity, and driven by responsibility. We partner with clients to resolve challenges and ca…

Skills: Python, R, SQL, Microsoft Excel, Power BI

Senior Penetration Tester

Brussels, Brussels-Capital, Belgium • Hybrid

Mid level

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Full-time
bachelor degree, postgraduate degree
Training budget of 10,000€ and 10 days every two years, Company car, Belgian fuel card, Access to deep technical security certifications, Regular team-building and annual off-site events, Personal career coach
Posted 2d ago
~40 hrs/week

Responsibilities

Emulate malicious actors to proactively test clients' detection and response capabilities while designing security solutions to protect confidential data. Coordinate penetration testing projects end-to-end and provide mentorship and professional development support to junior testers.

Requirements

Requires citizenship of a NATO member state, a degree in a relevant field, and at least 2 years of professional experience in security. Candidates must possess strong ICT knowledge, excellent English communication skills, and the ability to handle sensitive information.

Full job description

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 Penetration Tester based in Brussels, Belgium, you will:

Fuse technical and non-technical skills to emulate actions that could be taken by malicious users or systems.

Understand the psychology, systems, and tactics used by threat actors to proactively test clients’ ability to detect, respond to, and adapt to attacks.

Help design, develop, and recommend security solutions to protect clients’ proprietary and confidential data and systems.

Support compliance objectives by providing guidance on the logical protection of information system assets.

Advise clients on security implications when making changes to their network, system, and application architecture.

Prepare reports on the effectiveness of information security controls and recommend the adoption of new policies and procedures.

Leverage a broad range of offensive security techniques, including social engineering, exploit development, and process exploitation.

As a senior profile, coordinate penetration testing projects end-to-end and support junior testers in their day-to-day delivery and professional development.

Requirements

You hold citizenship in one of the 32 NATO member states.

You have a Bachelor’s or Master’s degree or equivalent work experience in the field, and 2+ years of professional experience in the field

Good knowledge of ICT systems, networks and security technologies

Knowledge of operating system security concepts

Able to work independently and to deliver results

Positive, team and mission-oriented attitude

Strong interpersonal and verbal/written communications skills that enable the ability to work effectively in a collaborative team environment

Excellent English communication skills, both verbal and written

Candidates must recognize and deal appropriately with confidential and sensitive information

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 two years

Company car + 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 company, where you will be 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 with legendary off-site events once a year. The location of the next team building is one of the most closely guarded secrets at NVISO… We can however disclose that we’ve visited Lisbon, Dubai and Malta over the past few years

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 and home office possibilities

Flex Reward Plan

32 holidays

IF YOU'RE INTERESTED, PLEASE SEND US YOUR APPLICATION!

WE'RE LOOKING FORWARD TO MEETING YOU!

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.

Related keywords

Penetration TestingCyber SecurityOffensive SecuritySocial EngineeringExploit DevelopmentSANSBlackHatBruCONOWASPGSEGXPNGREMGCFAOSCPNATOICT

About NVISO Security

LinkedIn Visit site

Industry: Computer and Network Security
Company size: 201-500 employees
Founded: 2013
Headquarters: Brussels, Brussels Region
LinkedIn followers: 16,163

NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management to incident response and security testing. This unique "skill blend" allows them to analyse and respond to complex client challenges and help those companies prevent, detect and respond to security challenges with a positive business outcome. Built on values of Pride, Caring for our people, Breaking Barriers, and fostering a no-BS approach, our mission is to be an innovative, trusted and respected security partner for our clients.

Offices: Rue Guimard 8, Brussels, Brussels Region 1040, BE · Holzgraben 5, Frankfurt am Main, Hessen 60313, DE · Machtlfinger Str. 21, Munich, Bavaria 81379, DE · Feidiou 9, Athens, GR · Gumpendorfer Straße, Vienna, 1060, AT

Penetration TestingDigital Forensics & Incident ResponseMalware AnalysisGovernanceRisk & ComplianceResearch & DevelopmentSecurity MonitoringThreat HuntingAdversary EmulationICS Security

View all jobs at NVISO Security

Technology Jobs in Brussels, Belgium (Now Hiring) Jun 2026 — Page 2 | Clera