Join us as an Internal and External Testing Manager Are you ready to shape the future of capital markets? We are looking for an Internal and External Testing Manager to join our CSD Convergence Programme at the Euronext Securities team in Porto. The CSD Convergence Programme is a flagship initiative within Euronext’s Innovate for Growth 2027 strategic plan. Its aim is to strengthen Euronext’s pan-European market infrastructure by integrating and modernising Central Securities Depository (CSD) platforms into a single, harmonised system serving multiple markets. This transformation will enhance scalability, operational efficiency and client experience, positioning Euronext Securities as a leader in secure and resilient post-trade services across Europe. As Internal and External Testing Manager, you will play a pivotal role in ensuring the successful acceptance and readiness of this unified platform for both internal operations and external clients. You will primarily be responsible for: Testing strategy and governance Define and own the overall testing strategy, covering both internal User Acceptance Testing (UAT) and End User Acceptance (EUA) Establish consistent governance frameworks, acceptance criteria, entry/exit gates and sign-off models across all CSDs, markets and releases Implement automation and AI tools to secure quality and efficiency Ensure alignment between acceptance activities, programme roadmap and strategic objectives Provide consolidated visibility on acceptance readiness at programme level Programme oversight and coordination Oversee UAT and EUA planning across all workstreams, ensuring consistency, completeness and alignment Ensure appropriate resourcing, organisation and governance structures across markets Monitor progress, identify dependencies, bottlenecks and risks, and propose solutions when issues arise Coordinate closely with project management, Business Operations, IT, QA and client-facing teams End user acceptance and engagement Define and oversee EUA approaches, including client onboarding, participation models and validation scope Engage effectively with clients, participants and market stakeholders across all CSDs Align EUA execution with client readiness, migration plans and communication strategies Capture and prioritise client feedback for programme delivery Executive stakeholder management and escalation Act as the senior point of accountability for acceptance across the programme Engage with senior stakeholders across business, operations and programme leadership Lead escalation of critical acceptance risks and support go/no-go decision-making processes Risk, issue and quality oversight Maintain consolidated oversight of acceptance-related risks and issues across UAT and EUA Ensure timely escalation and resolution of critical blockers impacting programme delivery or client readiness Define and monitor KPIs and quality metrics for acceptance activities Ensure compliance with internal governance, audit and regulatory expectations Business and market readiness Ensure alignment between acceptance outcomes and overall business and market readiness Support transition from testing into migration, cutover and go-live phases Ensure acceptance deliverables are complete, auditable and aligned with regulatory requirements Your profile: Extensive experience in senior testing, acceptance or programme leadership roles within financial services or market infrastructure Proven track record of delivering complex projects under pressure with a solutions-focused approach Deep knowledge of post-trade services, settlement agents or custodians Experience managing client testing phases (EUA, industry testing or market-wide migrations) Familiarity with IEEE testing standards; ISTQB or similar certifications highly preferred Practical understanding of test automation and AI tools for UAT efficiency Strong leadership, governance and stakeholder management skills, including client-facing interactions Ability to manage complexity, ambiguity and competing priorities across multiple entities University degree in finance, business, economics, IT, engineering or a related field Fluency in English required; additional European languages are a plus Willingness to travel up to 40% to global offices and client sites Join a company where market infrastructure is built on innovation and where every innovation starts with a bold mind asking, “What’s next?”. At Euronext, we believe change is a starting point, not an obstacle. We look for people who see growth opportunities, think long term, and want to help shape capital markets for future generations. Together, we do not just support markets, we help shape their future. Apply by submitting a CV in English Euronext Securities is at the forefront of post-trade services and one of the largest Central Securities Depository (CSD) operators in Europe. We deliver cutting-edge settlement, custody and issuance services for both domestic and international markets, supporting clients throughout the entire value chain. Join us and play a key role in advancing secure and resilient securities issuance and settlement. 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. 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. Additional Information 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. Euronext is the leading European capital market infrastructure, covering the entire capital markets value chain, from listing, trading, clearing, settlement and custody to solutions for issuers and investors. Euronext operates MTS, one of Europe’s leading electronic fixed income trading markets, and Nord Pool, the European power market. Euronext also provides clearing and settlement services through Euronext Clearing and its Euronext Securities central securities depositories (CSDs) in Denmark, Italy, Norway and Portugal. Euronext’s regulated exchanges in Belgium, France, Greece, Ireland, Italy, the Netherlands, Norway and Portugal host a broad range of listed issuers, a strong blue-chip franchise and the largest global center for debt and fund listings. With a diverse domestic and international client base, Euronext is a major venue for European lit equity trading. Its products include equities, FX, ETFs, bonds, derivatives, commodities and indices. For the more information, please visit our career website.

Internal and External Testing Manager.

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