Tatari is looking for a Sr. SDET to join our Engineering team. In this role, you will develop test automation suites, define end-to-end testing strategies for our client-facing web applications, and own quality assurance across both FE and BE. You will partner with product managers, designers, and engineers to ensure correctness, reliability, and a smooth user experience of Tatari's media buying platform and adjacent services. Responsibilities: • Build, maintain, and scale automated end-to-end (E2E) testing frameworks using Playwright. • Contribute to unit tests across our tech stack, utilizing TypeScript (Jest) and Python (pytest). • Write, execute, and maintain clear, comprehensive test plans for new features, encompassing both automated and manual testing strategies. • Partner with frontend and backend engineers to bring fully QA'd projects to successful completion, at the highest quality standards. • Perform hands-on manual QA and exploratory testing for complex user workflows, edge cases, and new features where features and/or automation are still being developed. • Query databases using SQL to verify data integrity, validate backend API responses, set up local and staging sandbox environments to test complex data flow scenarios. • Help integrate automated tests into CI/CD pipelines to ensure continuous testing, pipeline observability, and deployment reliability. • Mentor engineers across the org on testing best practices, automation strategies, and contribute to a culture of testing excellence. Qualifications: • 5+ years of experience as an SDET, QA Automation Engineer, or Software Engineer with a strong focus on automated testing and QA methodologies. • Strong proficiency in writing automated E2E tests (Playwright or Cypress). • Solid programming skills in TypeScript and Python for writing robust test automation and unit tests (Jest, pytest, or similar). • Strong familiarity with modern client-side web applications, particularly those built with React. • Proficient in SQL, experience querying relational databases for test validation and data setup. • Experience building and maintaining test automation frameworks for UIs, APIs, and microservices. • Comfortable working across engineering and product to communicate quality standards, release risks, and tradeoffs to both technical and non-technical stakeholders. • Detail focused, strong analytical skills, a knack for edge-case discovery, and a genuine commitment to engineering excellence. Benefits: • Total compensation ($140,000-$170,000) • Equity compensation • Health insurance coverage for you and your dependents • 401K, FSA, and commuter benefits • $150 monthly spending account • $1,000 annual continued education benefit • $500 Newbie Productivity Perk • Unlimited PTO and sick days • Monthly Company Wellness Day Off • Snacks, drinks, and catered lunches at the office • Team building events • Hybrid RTO of 2 days per week in office. #LI-HYBRID