Our Purpose

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.

Title and Summary

Senior Performance Test Engineer

SessionM, a Mastercard Company, is a customer engagement platform empowering global brands to forge stronger and more profitable customer relationships. We partner with brands to drive marketing transformation through innovative technology and services. We are headquartered in Boston with offices around the world including Prague.


Job Responsibilities

- Conduct architectural & technical reviews during software development life cycle to assess potential performance impact and bottlenecks.
- Develop test strategy to adequately test system performance and capacity.
Responsible for performance test design, execution of performance tests and analysis of test results.
- Monitor performance and resource utilization metrics of various components under the technology stack.
- Identify performance bottlenecks, provide suggestions/recommendations for remediation and track defects to closure.
Investigate production workload and data usage patterns to design prod-like tests.
- Work across multiple agile teams to implement testing strategies and best practices for performance testing, capacity planning, performance monitoring.
- Drive performance engineering as an integral step during the software development life cycle.
- Provide leadership with respect to performance testing, test automation best practices and implementation.
- Drive a security security-minded testing and making sure we release a secure compliant code.
- Design test solutions and implement frameworks to advance test automation.
- Drive continuous improvement in test coverage and test effectiveness.


Qualifications

Bachelors in Computer Science or technical related degree or equivalent experience.
5+ years of experience in performance testing, bottleneck analysis and identifying root cause.
Proficient in any one load testing tool (Preferred: k6).
Proficient in any one APM/Performance monitoring tool (Preferred: SignalFX by Splunk).
Strong experience with testing REST API Microservices.
Strong experience with cloud technologies such as AWS, Azure, etc.
Ability to interpret system & architecture diagrams with a performance mindset.
Ability to understand new concepts quickly, and apply them accurately through an evolving, dynamic, agile environment.
Knowledgeable in Continuous Integration & Delivery testing & principles.
Excellent verbal & written communication skills and teamwork.


Our Technology Stack

Web Tier – React
App Tier – Ruby, .Net Core, Go Lang.
Data Tier – AWS S3, Dynamo, SQL, Athena, Cassandra
Testing – Cypress, Postman (with Newman)
Performance Testing: k6.io
Programming Languages: Javascript, Python, C#
Cloud: AWS

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.