Posted:
2/3/2026, 4:00:00 PM
Location(s):
Porto District, Portugal ⋅ Porto, Porto District, Portugal
Experience Level(s):
Senior
Field(s):
IT & Security ⋅ Software Engineering
Join us an Offensive Security Engineer – AI Automation !
Are you ready to shape the future of capital markets? We are looking for an Offensive Security Engineer – AI Automation to join our team!
You will primarily be responsible for:
Lead adversarial security reviews of AI-enabled systems, gateways, APIs, and automation platforms to validate architectural and operational resilience
Contribute to security and architecture reviews to ensure AI and core security components are designed and operated securely from MVP through target state
Design, assess, and challenge security architectures for AI agents, automation workflows, identity flows, and trust boundaries
Develop and maintain automated Red Team tooling to continuously test exposed attack surfaces and security assumptions
Translate Red Team findings into architectural guidance, security patterns, and actionable design improvements
Produce clear security architecture and threat documentation for AI and automation technologies
Work closely with engineering, platform, and operations teams to validate security controls and operational readiness
Provide expert support during security incidents, design escalations, and high-risk technical decisions
Your profile:
Strong background in offensive security and Red Team operations
Proven experience in security architecture and secure system design
Hands-on automation and scripting experience (Python required)
Solid understanding of APIs, distributed systems, identity, and authorization models
Practical experience assessing AI systems, agents, or automation frameworks
Confident, pragmatic, and comfortable challenging design decisions
Self-starter with the ability to operate autonomously in ambiguous environments
Clear and effective written and verbal communication skills
Able to adapt quickly to changing priorities while managing multiple initiatives
Comfortable working independently or as part of cross-functional teams
Experience in regulated or financial environments is a strong plus
Certified knowledge of Cloud Environments such as Azure and AWS is also a plus
Apply by submitting a CV in English.
Join Euronext – Shape capital markets for future generations
Euronext is the leading European capital market covering the entire capital markets value chain, from listing, trading, clearing, settlement and custody, to solutions for issuers and investors. We operate seven national stock exchanges, handling 25% of European lit equity trading. Our products include equities, FX, ETFs, bonds, derivatives, commodities and indices. Euronext also provides clearing and settlement services through Euronext Clearing and our network of Euronext Securities CSDs. In addition, Euronext runs MTS, one of Europe’s leading electronic fixed income trading markets, and Nord Pool, the European power market. The company has a diverse domestic and international client base.
Find out more about us at: Euronext .com
Euronext Values
Unity
• We respect and value the people we work with
• We are unified through a common purpose
• We embrace diversity and strive for inclusion
Integrity
• We value transparency, communicate honestly and share information openly
• We act with integrity in everything we do
• We don’t hide our mistakes, and we learn from them
Agility
• We act with a sense of urgency and decisiveness
• We are adaptable, responsive and embrace change
• We take smart risks
Energy
• We are positively driven to make a difference and challenge the status quo
• We focus on and encourage personal leadership
• We motivate each other with our ambition
Accountability
• We deliver maximum value to our customers and stakeholders
• We take ownership and are accountable for the outcome
• We reward and celebrate performance
We are proud to be an equal opportunity employer. We do not discriminate against individuals on the basis of race, gender, age, citizenship, religion, sexual orientation, gender identity or expression, disability, or any other legally protected factor. We value the unique talents of all our people, who come from diverse backgrounds with different personal experiences and points of view and we are committed to providing an environment of mutual respect.
This job description is only describing the main activities within a certain role and is not exhaustive. It does not prevent to add more tasks, projects.
Website: https://companywebcast.com/
Headquarter Location: Rotterdam, Zuid-Holland, The Netherlands
Employee Count: 11-50
Year Founded: 2005
IPO Status: Private
Industries: Internet ⋅ Software