WPP is the trusted growth partner for the world’s leading brands. We unite cutting-edge media intelligence and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company – powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and deliver transformational growth. We work with the world's most valuable brands and have global reach across 100+ markets, with deep local expertise. Our people are the key to our success. We're committed to fostering a culture of creativity, belonging and continuous learning, attracting and developing the brightest talent, and providing exciting career opportunities that help our people grow. For more information, visit WPP.com. Why we're hiring: Open Intelligence (OI) is one of WPP’s most strategic bets - a flagship data and AI initiative at the intersection of machine learning, advertising technology, and audience insight, built to power the next generation of media intelligence. Operating across the US and UK and expanding across EMEA and APAC, OI runs at true global scale. To lead the next phase of development at the embedding and applied-AI layer of OI, we are hiring a Data Science Team Lead in Copenhagen. You will guide a small, sharp team building critical capabilities - from multimodal embedding spaces and Model Context Protocol (MCP) servers to agentic tools and UIs - that make the rest of OI’s AI ecosystem thrive. What you'll be doing: Line-manage and grow the team : Drive 1:1s, recruitment, performance, mentorship, and day-to-day technical and team direction. Own technical architecture & direction : Lead the technical vision and design for well-distributed multimodal embedding spaces (text, image, video), MCP server tooling, and user-facing chat agents + UI. Translate strategy into action : Take
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Role overview
Job description
Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Lead Software Engineer - JavaAre you an experienced software engineer who enjoys solving complex technical challenges and helping others build better solutions? As a Lead Software Engineer, you will design, build, and operate secure, scalable, and resilient technology that supports important payment services. You will combine hands-on development with technical leadership and work closely with teams across product, operations, architecture, infrastructure, risk, and customer-facing functions.Mastercard Payment Services:
In Mastercard Payment Services, you will contribute to critical European payment clearing and settlement services. This includes real-time and batch clearing, instant payments, participant-facing services, liquidity and settlement capabilities, reporting, and related payment infrastructure.
You will help ensure these services are reliable, secure, and resilient by applying strong engineering practices, automation, production ownership, and continuous improvement.
What you will do:
• Design, build, integrate, and improve secure, scalable applications and services.
• Take ownership of complex service issues and coordinate resolution across teams.
• Work with product partners and stakeholders on priorities, trade-offs, and technical roadmaps.
• Improve delivery quality through automation, code reviews, testing, scanning, and standard engineering practices.
• Use incident learnings to strengthen stability, resilience, and continuous improvement.
• Introduce new technologies and reusable patterns within enterprise guidelines.
How you will lead:
• Provide hands-on technical guidance on architecture, development, and engineering practices.
• Collaborate across teams, functions, and organisations to deliver shared outcomes.
• Encourage knowledge sharing, reusable patterns, and active engineering communities.
• Support fair, evidence-based hiring and promotion input when needed.
What you bring:
• Strong experience designing, developing, integrating, testing, and maintaining production software systems.
• Good understanding of architecture patterns, system design, performance, resilience, and maintainability.
• Experience with secure coding, code quality, code reviews, troubleshooting, root cause analysis, and corrective actions.
• Practical knowledge of automation, DevOps toolchains, cloud-native patterns, and service integration.
• Experience building testing into delivery, including unit, functional, integration, regression, performance, resilience, and acceptance testing.
• Ability to collaborate across teams, mentor engineers, and influence engineering practices.
Technical experience:
• Core Java 8+, Spring, Spring Boot, Hibernate, Maven, Jenkins, Linux, Git, Oracle, and Docker.
• React JS is an advantage.
• Experience using AI-assisted tools to develop code is welcome.
What success looks like:
You will succeed in this role if you enjoy combining hands-on engineering with technical leadership, sound judgement, and the ability to influence outcomes across services and teams. Your work will help strengthen engineering quality, delivery flow, production ownership, operational resilience, security, and continuous improvement for customer-facing payment services.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
Abide by Mastercard’s security policies and practices;
Ensure the confidentiality and integrity of the information being accessed;
Report any suspected information security violation or breach, and
Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.
What they are looking for
Skills & requirements
Hiring company
Mastercard
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