// job listing

Principal Software Engineer

Mastercard
Nairobi
Full-time
Posted: 2026-09-28
Deadline: 2026-10-19

About Mastercard

an American multinational payment card services corporation headquartered in Purchase, New York.[5] It offers a range of payment transaction processing and other related-payment services (such as travel-related payments and bookings)

Description

Mastercard is looking for a talented Principal Software Engineer to join the Mastercard Foundry Research and Development team in Nairobi. In this role you will be working with a highly agile development team building innovative large-scale software platforms and solutions from ideation to release. Our team is built on a foundation of research and development, mining innovation internally, innovating new product lines with emerging technology, managing new products from inception to market validation and engaging strategically with start-ups to shape the future of commerce with and for our customers. At Mastercard Foundry you will help define the future of commerce through new product development, emerging technology research and thought leadership. As a Principal Software Engineer, you will: Lead the architecture & design of software systems and applications Influence architecture decisions across multiple teams Collaborate with product teams to understand requirements, identify solutions, and provide technical thought leadership Ensure solutions meet corporate security standards and adhere to operability principles. Drive a culture of engineering excellence Build great relationships with technical peers across the organization

Qualifications

All About You

Broad experience as a Software Engineer / Full Stack Developer

Working experience across a variety of languages and frameworks

Experience designing distributed, mission-critical, highly available systems supporting millions of transactions daily

Deep understanding of resiliency, fault tolerance and scalability patterns

In depth knowledge of Public Cloud platforms, containers and container orchestration

Hands-on technical leader who consistently demonstrates leadership, builds trust, develops talent and inspires the team

High-energy, detail-oriented and proactive with the ability to function under pressure with minimal supervision

Have a passion for continuous learning and enjoy challenging opportunities

Strong communication skills – both verbal and written – with strong relationship building, collaborative skills and organizational skills

Drives outcomes through strong commitment to timely delivery of key objectives

Demonstrates strong decision-making skills

Required Experience

Experience in software engineering within enterprise-scale environments.

-Experience providing technical leadership, architecture guidance, or principal engineering contributions.

-Demonstrated success designing and delivering large-scale distributed systems and leading complex engineering initiatives across multiple teams.

Proven track record designing and delivering large-scale distributed systems.

Experience leading complex engineering initiatives across multiple teams.

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