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Principal Software Engineer at MasterCard

You · Nairobi

YouNairobiPosted 9 September 2026Apply by 9 October 2026

Job Description Summary

Mastercard is a global technology company specializing in the payments industry. Our mission is to connect and empower an inclusive, digital economy that benefits everyone, everywhere by ensuring transactions are safe, simple, smart, and accessible. Utilizing secure data and networks, strategic partnerships, and passion, our innovations and solutions support individuals, financial institutions, governments, and businesses in realizing their greatest potential

Our decency quotient, or DQ, drives our culture and influences everything we do both within and outside of our company. With connections spanning more than 210 countries and territories, we are committed to building a sustainable world that unlocks priceless possibilities for all

Overview

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.

About the Role:

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

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

12 plus years of software engineering experience in enterprise-scale environments.

5 plus years of experience in technical leadership, architecture, or principal engineering roles.

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

Experience leading complex engineering initiatives across multiple teams.

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