Qa - senior software engineer in test

The Opportunity We are a social casino mobile app with a 13-year history, featuring many proprietary games and a large user base of approximately 5 million players. We are now leveraging this established user base to build a licensed, real-money B2C online casino platform tailored for the Brazilian regulated market. We need a skilled Software Engineer in Test (SDET) to be our foundational quality champion. You ll be a core builder on this greenfield project, not just testing features, but building the entire quality strategy from the ground up. You ll work directly with leadership, product and DevOps to embed quality into our platform, free from any legacy code. What You ll Do Design comprehensive manual and automated test plans based on user stories, acceptance criteria and technical specifications. Actively participate in Scrum ceremonies, driving the testing strategy and ensuring balanced test coverage (unit, integration, E2E) following test pyramid principles. Build and maintain robust, scalable automated testing frameworks for our Node.js and Next.js services and applications. Write, execute and maintain end-to-end (E2E) and integration tests using modern tools (Playwright, Cypress, Jest, Testing Library). Manage the full Software Testing Life Cycle (STLC) for new features, ensuring timely, high-quality releases. Integrate automated tests into our CI/CD pipelines (GitHub Actions, GitLab CI) to enable continuous delivery. Champion quality by researching and introducing new tools and testing methodologies to continuously improve our processes and developer productivity. What You Bring You are a quality-driven engineer who thrives in a JavaScript ecosystem and enjoys collaborating to build testable, high-quality products. Proven experience as a Software Development Engineer in Test (SDET) or a QA Automation Engineer. Strong JavaScript/TypeScript skills, with hands-on experience in Node.js and Next.js environments. Solid understanding of software QA methodologies, tools and processes (STLC). Proficiency in one or more modern test automation frameworks (Playwright, Cypress, Jest, Mocha/Chai, Testing Library). Experience with API testing using tools like Supertest, Postman or similar. Familiarity with CI/CD pipelines (GitHub Actions, GitLab CI, CircleCI, etc). Experience with test management and bug tracking tools (JIRA, X-Ray, TestRail). Basic knowledge of databases (SQL or NoSQL. PostgreSQL, MongoDB). Experience working in Agile/Scrum teams. Excellent analytical, troubleshooting and communication skills in English. BS/MS in Computer Science, Software Engineering or related field. Nice to Have Direct experience within the iGaming industry or other regulated platforms (fintech, etc.). Experience with Behavior-Driven Development (BDD) using Cucumber.js. Knowledge of performance and load testing (Artillery, k6). Exposure to containerized environments (Docker, Kubernetes). Familiarity with accessibility testing and visual regression tools (Axe, Percy). Why Join Us? Greenfield Project: Build a brand-new platform from scratch with modern technology and no legacy code. High Impact & Ownership: As a key member of our founding team, your contributions and decisions will directly shape the product and the company s success. Proven Brand: You are building on the foundation of a beloved brand with a massive, existing user base ready to be engaged. Competitive Compensation: We offer a competitive salary and bonus structure for top talent.