Senior Test Engineer

Who We're Looking For - Senior Test Engineer The Senior Test Engineer is responsible for ensuring products and/or services meet established standards of quality, including reliability, usability, and performance, required for release to production environments. This role owns the development and execution of manual and automated tests and is responsible for assisting with issue resolution. This role is an embedded quality partner throughout the software development lifecycle — collaborating closely with Product, Engineering, and TPM from design through delivery. This role requires an agile, "jump in and assist" mindset and a willingness to tackle various tasks and responsibilities with eagerness, efficiency, and a positive attitude. The Impact You Will Make Acts as a vocal proponent for quality in every phase of the development process Participates in daily standups, Criteria Checks, sprint planning, and design discussions as an active member of the delivery team Partners closely with Product, Engineering, and TPM throughout development — not just during testing phases — to identify risks early and provide meaningful input on functional requirements and product designs Builds deep product knowledge to proactively surface quality risks before they reach the testing phase Owns quality strategy, release readiness, and process improvement — not only test execution Creates detailed, comprehensive, and structured test plans and test cases to support the validation of features and functionality Owns lower environment deployments through Jenkins (Currently manages three sites) Works with developers to grant access to lower environments as needed Maintains and extends a Playwright + TypeScript end-to-end automation suite; triages nightly CI results and reproduces failures locally as needed Performs manual testing, functional testing, regression testing, load testing, and performance testing as needed; interprets and reports results Enforces the attribution testing gate — all attribution-related deployments require a full passing suite run before shipping Writes and executes k6 scripts to validate A/B traffic splits and edge routing behavior under load Tests AWS Lambda functions in QA-aliased environments using engineer-provided JSON payloads; verifies execution via CloudWatch logs and performs downstream SQL verification in Amazon Redshift Navigates Cloudflare and server-side caching layers to ensure test fidelity, including cache purges, URL parameter bypasses, and edge node verification Finds, isolates, documents, and tracks bugs through resolution Reviews functional requirements, specifications, and technical design documents to provide meaningful feedback that supports product validation and QA processes Creates and maintains IT and end-user documentation to support testing processes, environment configurations, and stakeholder enablement Authors Deploy Stories in Jira, generates GitHub branch diffs, and coordinates developer sign-off on release footprint Collaborates with Product and Engineering to write release notes and executes pre- and post-deploy checklists Proactively monitors production environments and reports any issues uncovered Assists with managing and maintaining QA and UAT environments, including provisioning test data and writing stakeholder-facing UAT instructions Actively participates in process improvement discussions and proactively shares ideas to improve existing processes Stays informed on the latest technology trends and recommends and implements improvements to enhance team tools, testing infrastructure, and QA processes Builds and maintains strong, collaborative partnerships with internal and external stakeholders Develops trainings for others on the team; eager to share knowledge, skills, and lessons learned Performs on-call duty for urgent off-hours needs What You Bring Minimum 5+ years of experience in Quality Assurance testing, including utilizing various QA methodologies, tools, and processes Bachelo…