MastercardLead Software Engineer - Java
Mastercard is hiring a Lead Software Engineer - Java in Copenhagen, Denmark. Level rates it ; you can apply on Mastercard.
Level's read on this job
- Little AI ●○○○ is how Level rates this software engineer role: aI is not part of the work.
- The posting mentions Java, software engineering and backend development among its tools and skills.
- Level classes it as a lead role.
- Mastercard has 1,000+ other open roles on Level.
AI in this role
Lead the design and operation of secure and scalable payment clearing and settlement services using Java and robust engineering practices.
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.
How we rate this
Lead Software Engineer - Java at Mastercard rates 0 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.
Little AI. AI is not part of the work.
- ●●●● Builds AI80 to 100
- ●●●○ Works on AI60 to 79
- ●●○○ Uses AI40 to 59
- ●○○○ Little AI0 to 39
Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.
Prepare for this job
Built from this posting and from similar jobs on Level.
Skills and AI tools this role asks for
Also common in software engineer jobs at this level
Pay
- Typical software engineer job
- $168k
This posting doesn't list pay. Use the typical software engineer figure when pay comes up. See software engineer jobs
Questions you could be asked
- Tell me about a project where software engineering was part of your work. What did you do?
- Tell me about a project where backend development was part of your work. What did you do?
- Tell me about a project where system architecture was part of your work. What did you do?
- Tell me about a project where automation was part of your work. What did you do?
- Walk me through how you've used Java in your day-to-day work.
Adapt your resume
- List these exact terms on your resume: Software Engineering, Backend Development, System Architecture, Automation, and Java. An applicant tracking system matches the wording, not the idea.
- Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
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