Software Engineer II

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
Software Engineer II
Who is Mastercard?
We work to connect and power an inclusive, digital economy that benefits everyone, everywhere, by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships, and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team - one that makes better decisions, drives innovation, and delivers better business results.
Technology at Mastercard
What we create today will define tomorrow. Revolutionary technologies that reshape the digital economy to be more connected and inclusive than ever before. Safer, faster, more sustainable.
And we need the best people to do it. Technologists who are energized by the challenges of a truly global network. With the talent and vision to create the critical systems and products that power global commerce and connect people everywhere to the vital goods and services they need every day.
Working at Mastercard means being part of a unique culture. Inclusive and diverse, a rich collaboration of ideas and perspectives. A place that celebrates your strengths, values your experiences, and offers you the flexibility to shape a career across disciplines and continents. And the opportunity to work alongside experts and leaders at every level of the business, improving what exists, and inventing what's next.
About the role
Software Engineers at Mastercard design and code a variety of applications covering transaction processing, analytics, user interfaces, and APIs using a blend of cutting-edge technologies across big data, distributed systems, machine learning, and more. As a Software Engineer, you will deliver these products and solutions with speed and agility as part of a small team. This will involve developing high-performing, highly scalable software solutions and products for some of the world's top brands. Specific tasks vary depending on the project and the business unit that you join in.
All staff at Mastercard are expected to demonstrate 'Mastercard Way' cultural values every day - own it, simplify it, sense of urgency, thoughtful risk-taking, unlock potential, and be inclusive - with a relentless focus on our customers. As a Software Engineer II at Mastercard, you are expected to perform the following general responsibilities:
• Own tasks (dev, test, deployment) at an application/software component level • Able to troubleshoot and refactor existing code • Adopt new languages and architecture patterns needed for the work • Influence the decisions made by the team • Assist peers and less experienced members
All about you• Must have hands-on experience with Claude code, Github copilot and MCP.• Should be able to write skills and Claude code plugins.• Good to have understanding of LANG graph, LLAMA index & LANG chain.• Must have coding skills with java, python, spring boot.• Must have knowledge on kafka and cloud.• It is expected a candidate should have experience across multiple areas listed below. • Understands and has experience with full-stack application development including backend services, persistence tiers (e.g., databases), and interfaces (e.g., GUI, APIs, etc.). Understands and implements standard data access patterns (e.g., data transfer objects, object-relational mappings, data sharding, geo-partitioning). Uses defensive coding, logging, and alerts to help prevent issues. • Understands the full feature development lifecycle including creating technical design documentation, comparing & contrasting approaches, tasking out stories, and designing test plans. Approaches feature rollout defensively with rollback contingencies. Conducts product demos. • Good oral and written communicator. Communicates clearly and concisely. Structures communication to facilitate asynchronous discussion and build consensus. Creates technical documentation to describe their feature's architecture, functionality, purpose, and troubleshooting workflow. • Treats testing as a first-class requirement for any feature, ensuring testability, and coverage from the start. Understands how and when to employ various types of tests such as unit, regression, performance, and integration. • Able to isolate technical problems by forming a hypothesis and eliminating prospective causes. Shows creativity and persistence on intermittent or hard to reproduce issues. • Works closely with junior engineers and interns. Consistently checks in to provide guidance and ensure progress. Coaches other team members to be productive and grow their skills.• Experience using enterprise tooling and processes to support full SDLC including CI/CD, tools for version control, code review, code coverage, trouble-ticketing, feature/defects planning, tracking and management. • Exhibits flexibility and professionalism. Approaches discussions with empathy with a goal of building consensus. Frequently pitches in and lends support where needed. Effectively partners with team members in all roles and geographies.• Ability to use knowledge of industry and software development trends to propose and apply them to design/architectural challenges for product features.
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.