Key Responsibilities

Functional & Regression Testing

Design, develop, execute, and maintain comprehensive test cases, test scenarios, and test scripts based on business requirements, user stories, and technical specifications

Perform functional, regression, integration, smoke, and end-to-end testing on web applications, APIs, mobile applications, and backend services

Validate system behavior across browsers, devices, and environments to ensure consistent user experience

Identify, log, prioritize, and track defects through to resolution using defect management tools (Jira, Azure DevOps), including clear reproduction steps and severity classification

Perform data validation and database testing—verifying data integrity, stored procedures, and query results against expected outcomes (SQL proficiency required)

Execute user acceptance testing (UAT) coordination, supporting business stakeholders in validating system readiness

API & Integration Testing

Test RESTful and SOAP APIs using tools such as Postman, Newman, or REST Assured—validating request/response payloads, status codes, headers, authentication, error handling, and edge cases

Validate integration points between microservices, third-party systems, and payment gateways (M-PESA, card networks) to ensure data flows correctly across boundaries

Create and maintain API test collections with parameterized data, environment variables, and automated assertions for repeatable validation

Test message queue workflows (Kafka, RabbitMQ) by validating message production, consumption, ordering, and dead-letter handling

Test Automation

Develop and maintain automated test scripts for regression, smoke, and critical path testing using frameworks such as Selenium, Cypress, Playwright, or Appium

Integrate automated tests into CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI) to enable continuous testing on every build and deployment

Build and maintain test data management strategies, including test data generation, masking, and cleanup for repeatable test execution

Contribute to the team’s automation strategy—identifying high-value manual tests to automate based on frequency, risk, and regression impact

Maintain and improve the test automation framework, including page object models, utility libraries, and reporting dashboards

Security & Compliance Testing

Participate in security reviews of new and existing systems, products, and services—validating that security requirements are implemented correctly

Perform security-focused testing aligned with OWASP Top 10: injection flaws, broken authentication, cross-site scripting (XSS), insecure direct object references, and other common vulnerabilities

Use security testing tools (OWASP ZAP, Burp Suite, SonarQube SAST) to identify vulnerabilities in web applications and APIs

• Collaborate with IT security teams to validate access controls, role-based permissions, data encryption (at rest and in transit), and session management
• Assist in testing compliance with regulatory standards applicable to financial services (data privacy, PCI-DSS, audit trail requirements)
• Document security findings with clear risk ratings, evidence, and recommended remediation actions
• Performance & Load Testing
• Design and execute performance, load, and stress tests using tools such as JMeter, Gatling, k6, or Locust to validate system behavior under expected and peak transaction volumes
• Establish performance baselines and monitor for regressions across releases—measuring response times, throughput, error rates, and resource utilization
• Collaborate with backend and infrastructure teams to identify and resolve performance bottlenecks before production deployment
• Reporting, Process & Collaboration
• Produce clear, concise test reports including test execution summaries, defect metrics, risk findings, and go/no-go recommendations for releases
• Maintain traceability between requirements, test cases, and defects to ensure complete coverage and audit readiness
• Participate actively in Agile/Scrum ceremonies—sprint planning (estimating test effort), daily standups, sprint reviews, and retrospectives
• Collaborate with developers on defect triage, root cause analysis, and defining acceptance criteria for user stories
• Contribute to continuous improvement of QA processes, testing standards, and quality metrics across the team
• Mentor junior QA team members and promote a quality-first culture within the engineering organization

Required Qualifications

Education & Experience

• Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related field
• Minimum 3 years of professional experience in software quality assurance or testing
• Demonstrated experience testing web applications, APIs, and backend services in a professional setting