Lead SDET (Software Development Engineer in Test) - JS/TypeScript/Playwright

Remote in Argentina,

Automated Testing in JS

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We are looking for a Lead SDET (Software Development Engineer in Test) to drive JavaScript/TypeScript and Playwright automation that protects product quality. You will partner with test managers, product owners, developers, and engineering teams to build and evolve automated coverage across functional, non-functional, API, component, and performance testing, with strong CI/CD integration and traceability. Apply to help raise the bar for reliable, scalable releases

Responsibilities

Partner with test managers and product owners to align on test plans and strategies for new and existing features
Review requirements, acceptance criteria, and technical documentation to produce clear, complete test scenarios and scripts
Create, implement, and run automated tests that cover functional and non-functional quality attributes
Define and apply API testing strategies to validate endpoint correctness, security, reliability, and performance
Maintain component-level test suites using appropriate mocks and contracts to verify modules in isolation and within the broader system
Organize, execute, and interpret performance and load tests to evaluate scalability, responsiveness, and stability under different conditions
Log and communicate defects with clear reproduction steps, supporting logs, and evidence
Coordinate with developers, DevOps, and other engineering teams to anticipate changes and validate upcoming updates
Embed automated test frameworks and scripts into CI/CD pipelines with quality gates to improve efficiency, coverage, and repeatability
Communicate proactively with stakeholders to clarify requirements, review designs, and confirm implementations
Keep test assets organized and traceable in Xray, Jira, Confluence, and Git, ensuring tests are linked to requirements and acceptance criteria
Contribute actively to Agile ceremonies such as daily stand-ups, sprint planning, retrospectives, and backlog grooming

Requirements

Proven experience with JavaScript/TypeScript test automation, including 5+ years in professional environments
Hands-on expertise with Playwright for 2+ years, building stable end-to-end automation
Solid understanding of API testing, mocking, and contract validation using tools such as Supertest, Wiremock, and Pact
Practical skills in performance testing with k6 and working with analysis dashboards such as Grafana and Xray
Working knowledge of containerization and service isolation approaches using Docker Compose, TestContainers, and LocalStack
Strong background integrating automated tests into CI/CD pipelines and maintaining traceability in test management tools
Good command of Agile methodologies with effective cross-team communication habits
English proficiency at B2 (Upper-Intermediate) level or higher

Nice to have

Familiarity with AI-assisted development tools like GitHub Copilot in VS Code
Knowledge of PostgreSQL and Kafka to support component-level service isolation
Understanding of Bruno and Swagger for API test design