About the role You'll help ensure the quality and reliability of one of Salmon's key growth products by testing and improving customer-facing referral experiences. What you'll work on A referral platform used by promoters, partners, and customers across the Philippines Product initiatives including PWA migration, Agent App integration, and new tools for referral program growth Customer-facing workflows where product quality directly affects acquisition, activation, and partner engagement What you'll be responsible for Test new product features and improvements across referral and promoter-facing applications Design and execute test scenarios using structured test design techniques Build and maintain API test coverage using Postman, Newman, Supertest, or similar tools Validate user journeys, usability, and interface quality across web applications Verify application behavior across different browsers, devices, and operating systems Perform performance testing and analyze system behavior under load Identify, document, and investigate defects, risks, and quality issues Integrate tests into CI/CD pipelines to improve release confidence and test coverage Partner with Engineers, Product Managers, and Designers to maintain quality throughout the development lifecycle What we need 3+ years of experience testing web applications Strong manual testing skills and experience creating test cases and test documentation Experience testing REST APIs and GraphQL services Hands-on experience with Postman, Newman, Supertest, or similar API testing tools Understanding of modern frontend applications and rendering approaches, including SSR, SSG, and client-side rendering Experience with cross-browser and cross-device testing Familiarity with browser developer tools and debugging techniques Experience integrating tests into CI/CD workflows Good understanding of software testing principles, test design techniques, and quality assurance practices Good to have Experience with performance testing tools such as k6 Understanding of common web security risks, including XSS, CSRF, and SQL injection Experience working on growth, referral, marketplace, or other customer-facing products