Lead Software Engineer

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
Job Summary
We are seeking an experienced Lead Software Engineer - Non-Functional Testing to drive performance, resilience, scalability, and reliability validation of mission-critical systems built on modern cloud architectures. The ideal candidate will lead performance engineering and chaos testing initiatives, build scalable test frameworks, and establish reliability practices across distributed systems leveraging AWS cloud and industry-standard observability tools.
This role requires deep hands-on expertise in Performance Testing, Chaos Engineering, Infrastructure understanding, and Cloud-based test design, with strong leadership and cross-team collaboration skills.
Responsibilities & Skills
Lead performance testing strategies (load, stress, endurance, scalability) using Gatling and JMeter.
Drive chaos engineering and resilience testing using AWS FIS and Gremlin to validate fault tolerance and recovery.
Work on AWS cloud infrastructure, validate auto-scaling, capacity planning, disaster recovery, and reliability patterns.
Leverage observability tools such as Dynatrace, Grafana, and Splunk for monitoring, root cause analysis, and performance diagnostics.
Build automated NFT frameworks integrated with CI/CD pipelines.
Possess strong knowledge of microservices, containers, Kubernetes, networking, and distributed systems performance tuning.
Provide technical leadership, define NFT standards, and mentor team members.
Experience & Qualifications
10-12 years of experience in Non-Functional Testing / Performance Engineering.
Proven hands-on experience with Gatling, JMeter, AWS FIS, Gremlin, and AWS cloud services.
Strong background in infrastructure performance analysis and observability tooling.
Scripting experience (Java, Python, Scala, or Shell) preferred.
Excellent collaboration and leadership skills.
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.