Lead Software Engineer in Warsaw

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.

We are looking for a Lead Software Engineer - Dev & Test (Java) to join the Developer Experience team, responsible for the Mastercard Developers portal and related tools used by developers globally. This is a hands‑on technical leadership role for an experienced engineer who combines strong software engineering and test automation expertise with the ability to drive quality strategy across teams. You will lead quality initiatives, influence engineering practices, and help teams deliver reliable, scalable, and production‑ready software.

HOW WILL YOU WORK

• Serve as the quality and test automation lead within one or more feature teams, partnering with engineers throughout the software development lifecycle.
• Drive quality strategy and test approach from design through production.
• Identify quality risks, dependencies, and release concerns early in the development process.
• Collaborate with engineers to improve testability, observability, and automation coverage.
• Lead root cause analysis of complex issues and drive long‑term improvements.
• Design scalable automation solutions that support sustainable delivery.
• Mentor engineers and promote quality engineering best practices across teams.

WHAT WILL YOU DO

• Lead quality engineering efforts for major initiatives and business‑critical features.
• Define and drive test automation strategy across multiple applications and services.
• Design, develop, and maintain automated test frameworks in Java.
• Establish quality standards, test practices, and release readiness criteria.
• Partner with engineering teams to improve development workflows, shift‑left testing, and automation adoption.
• Drive improvements in CI/CD pipelines, deployment confidence, and release quality.
• Analyze production issues and lead quality improvement initiatives.
• Mentor and coach engineers in testing, automation, and quality engineering practices.
• Influence technical decisions and contribute to architecture discussions with a focus on reliability, scalability, and quality.

WHAT YOU BRING

• Significant experience in software engineering, test automation, or software development in test.
• Strong Java development skills with experience building automation frameworks and engineering solutions.
• Experience testing APIs, UI applications, distributed systems, and cloud‑native services.
• Deep understanding of software quality practices, test strategy, and risk‑based testing.
• Experience leading quality initiatives across multiple teams or complex projects.
• Strong knowledge of CI/CD pipelines, DevOps practices, and modern software delivery.
• Ability to influence technical direction and drive improvements without direct authority.
• Strong communication and collaboration skills with engineers, product managers, and stakeholders.

NICE TO HAVE

• Experience with cloud platforms and microservices architectures.
• Experience defining engineering standards and automation strategies at scale.
• Experience mentoring engineers and leading technical communities of practice.
• Familiarity with developer platforms, API ecosystems, or developer experience tooling.
• Experience with performance, reliability, and observability testing.

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.