MastercardLead Software Engineer - Commercial Connect API Team
Mastercard is hiring a Lead Software Engineer - Commercial Connect API Team in Dublin, Ireland. Level rates it ; you can apply on Mastercard.
Level's read on this job
- On Level's scale, this software engineer role is Uses AI ●●○○: an ordinary role that requires AI tools.
- The posting allows some remote work.
- Tools and skills the posting cites include Java, Spring Boot and Microservices.
- Level classifies it as a lead role.
- Level lists 1,100+ other open roles at Mastercard.
AI in this role
Lead backend development of Java microservices and APIs with occasional use of AI-assisted engineering tools.
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 - Commercial Connect API TeamOverview:Mastercard is seeking a Lead Software Engineer to join our growing Commercial Connect API team. This team is building a global B2B technology platform that empowers businesses of all sizes to manage payments more efficiently when buying or selling products and services.
As a lead engineer, you’ll be part of a collaborative Agile team working in a cutting-edge Mastercard technology hub. You will apply modern software engineering development practices with a strong emphasis on microservices architecture and scalable database development. Your contributions will help shape how Mastercard standardizes, automates, and optimizes digital payments across the global B2B landscape.
This is a hybrid position based in Sandyford, Dublin, requiring three days per week onsite.
Role:
• Lead the design, development, and deployment of high-quality Java microservices that integrate with modern front-end frameworks and third-party applications.
• Contribute to all phases of the SDLC including planning, coding, testing, reviews, and delivery.
• Collaborate closely with engineers, product managers, TPMs, and test engineers to align technical and business goals.
• Perform code reviews, submit pull requests, and support continuous improvement.
• Ensure adherence to Mastercard's engineering best practices and compliance with enterprise security, operations, and architecture standards.
• Optimize application performance and reliability for large-scale, high-traffic systems.
• Apply AI-assisted engineering opportunities across the SDLC, including code generation, test automation, and troubleshooting.
All About You:
• Extensive experience as a backend Software Engineer or Software Developer in a fast-paced, collaborative environment.
• Strong experience developing backend applications using Java and Spring Boot.
• Proven expertise in designing and developing secure, scalable microservices that handle high traffic volumes, with a strong knowledge of microservices architecture, RESTful API design, and integration patterns.
• Advanced SQL knowledge with databases like PostgreSQL, Oracle, etc., and experience building solutions that scale.
• Hands-on experience with cloud platforms such as AWS or Azure.
• Experience with CI/CD practices, containerization (Docker, Kubernetes), DevOps practices, automated testing, and version control using Git.
• Experience using AI-assisted development tools to improve engineering productivity, accelerate analysis, and generate test coverage.
• Experience working in an Agile development environment.
• Excellent verbal and written communication skills, with the ability to articulate complex ideas clearly and concisely to both technical and non-technical stakeholders.
• Strong analytical and problem-solving abilities, with a focus on improving processes to accelerate delivery, foster innovation, reduce costs, and improve quality.
• Bachelor’s degree in Computer Science, Engineering, or a related field. Equivalent practical experience will be considered.
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 - Commercial Connect API Team at Mastercard rates 45 out of 100 for how much of the daily work is AI. That makes it Uses AI (AI Level 2 of 4). The level is about AI in the job, not seniority.
Uses AI. An ordinary role that requires AI tools.
- ●●●● 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 development was part of your work. What did you do?
- Tell me about a project where backend engineering was part of your work. What did you do?
- Tell me about a project where code review was part of your work. What did you do?
- Tell me about a project where agile was part of your work. What did you do?
- Tell me about a project where api design was part of your work. What did you do?
Adapt your resume
- List these exact terms on your resume: Software Development, Backend Engineering, Code Review, Agile, and API Design. 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.
- Put the AI tool in a bullet point about what you did, not just in a skills list. This role treats it as a required part of the job.
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