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Junior Web Security & Authentication Engineer - HQ Brussels

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Junior Web Security & Authentication Engineer - HQ Brussels

  • Permanent
  • Full time
  • Brussels, Brussels, Belgium
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Last update 19.01.2026
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 YOUR JOB IN A NUTSHELL

Join the Agile Production Services (APS) tribe within BNP Paribas Fortis’ IT Production department—a dynamic team driving end-to-end (E2E) production services for critical IT areas. As a Junior Web Security and Authentication Engineer, you’ll play a key role in the Application Security squad, focusing on ISVA (IBM Security Verify Access) while collaborating with Web Infrastructure, Tooling & Hosting, and Secure Gateways experts.

Your mission? Design, deliver, and support secure integration layers between operating systems and business applications, ensuring seamless Web information exchange for both intranet and DMZ environments. You’ll challenge architectures, optimize security and costs, and automate processes—all while sharing your expertise with a passionate, multicultural team.

AND IN DETAIL 

What you’ll do: 

  • Design, deliver, and support the integration layer between operating systems and business applications in distributed environments for Web information exchange solutions, focusing on intranet and DMZ web infrastructure.
  • Challenge and defend new/existing solutions and architectures to align with the bank’s interests (maintenance, costs, security, etc.).
  • Identify reusable Web Security components and ensure high service quality while enforcing compatibility and interoperability standards for accessibility.
  • Share technical knowledge on vendor-specific and generic security components, best practices, and solutions with colleagues.
  • Establish and document installations, guidelines, policies, and procedures for stakeholders; assist architects in cost-benefit analyses of Web implementations.
  • Actively participate in production support (incident, problem, and change management) for the application Security squad.
  • Monitor and report on Web traffic and performance; contribute to the automation and industrialization of assets.
  • Participate in the On-Call rotation (7/7, 18:00–7:30).

YOUR TALENTS AND COMPETENCES 

What you bring: 

  • Technical expertise – Conceptual knowledge of Web Access Management, authentication practices, TCP/IP, firewalls, load balancers, and network security. Hands-on experience with reverse proxies (Nginx, ISVA) and Web technologies is a must. 
  • Development skills – Strong ability to code, automate, and industrialize security solutions. 
  • Analytical mindset – A proactive, process-oriented approach with attention to detail and a knack for challenging existing architectures in the bank’s best interest (security, maintenance, costs). 
  • Collaboration & adaptability – Thrive in a multicultural, dynamic environment? You’re a team player with excellent communication skills (fluent English mandatory; Dutch/French is a plus) and a flexible, open-minded attitude toward learning new tools. 
  • Drive & autonomy – Quick self-starter? Your commitment, perseverance, and innovative spirit will help shape the future of our Web Security Infrastructure.
  • Bachelor degree and at least 5 years of work experience but can be junior in the ISVA technology.

WHAT WE HAVE TO OFFER

SUSTAINABILITY AND IMPACT

We strongly believe in the positive impact that the financial sector can have on the world. BNP Paribas Fortis offers sustainable and responsible investment products and solutions and encourages social entrepreneurship. Together with our customers, we are working towards a better future every day.

DEVELOPMENT & CAREER PERSPECTIVES

The departments that make up BNP Paribas Fortis cover a wide range of activities. You will therefore have many opportunities for “horizontal” and “vertical” career development.

GOOD PLACE TO WORK

In addition to your remuneration and benefits (meal vouchers, insurance, holidays), we offer flexible salary options, allowing you to convert part of your salary into personalised benefits (phone use, IT equipment, transport, etc.).

OUR ENGAGEMENT

At BNP Paribas Fortis, we want to attract and retain all talent, whatever their gender, age, background or sexual orientation, and irrespective of whether they are living with a disability, as every person has their own experiences and their own identity. All of our full-time vacancies are also open to candidates wishing to work on an 80% or 90% full-time equivalent basis.

If the function is categorized as a banking services provider function (cf. Law of 22 April 2019 establishing an oath and a disciplinary regime for the banking sector), you will also need to provide us with a 'certificate of absence of professional ban' from the FSMA confirming that you are not professionally disqualified.

TEMPTED BY THE CHALLENGE?

A first selection is made based on your CV and motivation letter. Are we convinced that you are the right candidate? Then we will contact you.

Good luck!

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