Senior QA Engineer/ SDET

Why PayNet / Why Now

PayNet’s participant onboarding platforms are growing in volume, integrations, and release frequency. This role focuses on hands-on testing and automation to ensure onboarding journeys are reliable, secure, scalable, and production-ready.

You will be responsible for finding defects early, improving test coverage, automating repetitive testing, and ensuring quality is built into every release.

TL;DR

• Perform hands-on functional, API, integration, regression, performance, and usability testing.
• Build and maintain automated test suites using tools such as Playwright, Python, Postman/Newman, Selenium, Appium
• Integrate automated tests into Gitlab, Jenkins CI/CD pipelines to provide fast feedback.
• Test backend services, APIs, databases, and system integrations.
• Identify, investigate, and troubleshoot defects and quality risks.
• Support performance, security, scalability, and reliability testing.
• Guide junior QA engineers and promote good testing practices.

Why This Role Matters

• Ensures participant onboarding journeys remain reliable, secure, and seamless, directly impacting participant experience and trust in PayNet's ecosystem.
• Prevents production defects and onboarding failures through robust automation, performance testing, and early risk detection.
• Supports faster delivery cycles by embedding quality assurance into CI/CD pipelines without compromising system stability.
• Strengthens platform scalability and resilience as onboarding volumes, integrations, and business requirements continue to grow.
• Promotes a quality-first engineering culture by driving testing best practices, mentoring team members, and continuously improving QA processes.

What You Will Actually Do

Hands-On Testing

• Design and execute test cases for participant onboarding journeys.
• Perform functional, integration, regression, API, backend, usability, and exploratory testing.
• Validate end-to-end onboarding flows across different systems and integrations.
• Test APIs using tools such as Postman/Newman.
• Perform database validation using SQL.
• Investigate failures, reproduce defects, identify root causes, and work with developers to resolve them.
• Retest fixes and ensure defects do not reappear.

Test Automation

• Build and maintain automated test scripts and frameworks using Python.
• Develop automated UI, API, and regression tests using Selenium, Playwright, Appium, or similar tools.
• Increase automated test coverage and reduce repetitive manual testing.
• Maintain reliable and reusable automation suites.
• Review and improve existing automation to reduce flaky tests and improve execution time.

Performance & Reliability Testing

• Execute performance and load tests using JMeter, K6, or similar tools.
• Identify performance, scalability, and reliability issues before production.
• Analyse test results and work with developers to address bottlenecks.
• Support testing for high-volume onboarding scenarios.

CI/CD & Quality

• Integrate automated tests into Jenkins, GitLab CI, or other CI/CD pipelines.
• Ensure automated tests run as part of the development and release process.
• Investigate failed pipeline tests and determine whether failures are caused by defects, environments, or test issues.
• Provide clear quality feedback before releases.

Collaboration & Technical Leadership

• Collaborate with developers, delivery managers, product owners, and business stakeholders from requirement discovery, clarifying expectations and providing continuous feedback.
• Challenge assumptions, identify risks, and define testable acceptance criteria early to prevent defects and reduce rework.
• Help improve the development lifecycle and team practices through clear communication and shared ownership of quality.
• Mentor junior QA engineers in testing, automation, and effective collaboration.
• Promote practical testing standards that support early feedback and reliable delivery.

Examples of This Role in Practice

In this role, you will be hands-on and collaborative — helping the team build quality into the product from the beginning.

We believe shift-left testing starts during requirement discovery. You will work with delivery manager, product owner, developers, and stakeholders to clarify requirements, identify risks, and prevent defects before development begins. Clear communication and continuous improvement of our development practices are essential.

You will also write and execute tests, investigate failures, automate regression testing, and test APIs, performance, and scalability.

Success Means

• Clear, testable requirements, and early feedback.
• Better collaboration to prevent defects and reduce rework.
• Reliable automated tests are integrated into CI/CD.
• Strong coverage of API, backend, and performance risks.
• Fewer production defects and faster, reliable releases.

What Will Help You Succeed

Required

• Solid hands-on experience in test automation using script languages, particularly proficient in Python and JavaScript.
• Proven expertise in implementing and working with automation tools and frameworks, such as Playwright, Selenium, Robot Framework, PyTest etc.
• Intermediate and advanced level of understanding of the main concepts and processes around bug lifecycle, testing methodology and test estimation.
• Knowledge of application functions, bug fixing, and testing protocols, Agile/Hybrid Agile, and DevOps
• Strong exposure to Agile development, demonstrating the ability to seamlessly integrate testing processes within iterative development cycles.
• Familiarity and hands-on experience with DevOps practices and CI/CD pipeline, providing an added advantage in streamlining collaboration between development and operations teams for continuous integration and delivery
• Experience in Agile/Scrum or Kanban teams.

Helpful

• Experience with JMeter, K6, or other performance testing tools.
• Experience with security and scalability testing.
• Knowledge of accessibility testing.
• Experience mentoring junior QA engineers.
• ISTQB or similar QA certification.