Tech Principal Software Engineer

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.

Principal Software Engineer

Who is Mastercard

Mastercard is a global technology company in the payments industry. Our mission is 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.

With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.

The Services Access program is Mastercard's platform for unlocking seamless access to value-added

services across all transaction types—switched, non-switched, on-us, and non-Mastercard branded.

Responsible for the analysis, design, development and delivery of software solutions

Drive the architectural design, including dependent services, service interactions, and policies

Take ownership to improve the customer experience of an entire set of services/applications sold as products or bundled services

Contribute and lead Guild initiatives by engaging and mentoring Engineers at all levels to improve the craftmanship of Software Engineering

Apply judgment and experience to balance trade-offs between competing interests

Venture beyond comfort zone to take on assignments across different areas of Software Engineering

Participate and contribute to Principal review architecture meetings and drive resolutions to enterprise-wide challenges and regulatory needs

Write recommendations for job promotions based on an unbiased view of one's accomplishments

Conduct technical interviews for hiring engineering staff and raising the performance bar

Progressively grown career with proven design and development experiences in multiple languages, secure coding standards (e.g., Understands internals of operating systems (Windows, Linux, Mainframe) to write interoperable and performant code.

Has skills to develop and evangelize on reference architecture and run principles to help teams adopt Engineering Principles from the start (poison pill, active/active/active, auto-scaling, self-healing, others)

service-to-worker, MVC, API gateway, intercepting filter, dependency injection, lazy loading, all from gang of four) to implement efficient code

Understands and implements Application Programming Interface (API) standards and cataloging to drive API/service adoption and commercialization

Has skills to promote and coach teams on take on full stack development and facilitate end-to-end service ownership

Has skills to engage engineers across Technology organization to promote standard software patterns and reuse of common libraries and services

Has experience in leading and coaching teams to perform software planning and estimation for large scale complex programs

regulatory, security, new business, market parity, technical debt)

Has experience in design and execution of automation across multiple business areas and provides guidance on best methods and tools.

Has an expert understanding of DevOps best practices to guide developers and abstract application development from underlying hosting platforms and infrastructure

Performance engineering experience to ensure applications are built to scale, run, and perform for varying demands

Has skills to evaluate practices, metrics, and roles to continually optimize SDLC methodologies and automate processes to improve lead time and quality

Has skills to perform architecture and cost analysis for internal, hybrid, and public cloud environments

Has skills to define and drive advanced chaos and other operational testing practices to test points of failures, monitors, and system behaviors under adverse conditions (e.g., resource spikes, network congestion, component or infrastructure failure)

A/B testing, canary releases, blue-green deployment, feature flags)

Proven experience of a wide range of technology environments (Java, Go, Cloud, gRPC streaming, Protocol, WebServices, Cloud native architecture, Domain driven design, Axon Framework)

Experience with event-driven architectures, NATS, Kafka brokers, and designing systems for high throughput and scalability.

Hands-on experience with in-memory distributed caches (preferably Apache Ignite) including data grid design, cluster sizing, affinity mapping, and persistence configuration.

Comfortable optimizing end-to-end data paths: serialization formats, network I/O, threading/concurrency, and resource tuning to meet stringent latency and throughput targets.

Proven ability to balance real-time processing with batch backfill/reprocessing, ensuring data correctness, resilience, and operational simplicity.

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;

Report any suspected information security violation or breach, and

Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.