Develop and maintain the Quality Platform: frameworks, libraries, pipelines, and integrations that enable high-quality delivery.
Build reusable, language-agnostic automation libraries and internal SDKs.
Own CI/CD quality gates, test orchestration, and smart execution logic (e.g., test selection, caching, parallelisation).
Implement and maintain recording/playback tools, contract testing, visual regression engines, and observability hooks.
Handle AI & Innovation for Quality Engineering workflows.
Improve feedback loops in local dev, PRs, staging, and production.
Create self-service tooling for engineers to generate tests, diagnose failures, and validate changes quickly.
Embed quality signals into engineering workflows (e.g., risk scoring, flakiness insights, coverage intelligence).
Build systems that convert quality noise into actionable insights.
Own metrics dashboards: flakiness, failure cause classification, performance trends, release confidence.
Partner with our Infrastructure team to implement resilience tests (chaos, reliability gates, SLIs/SLOs).
Define and codify standards that scale across teams (naming conventions, folder structure, selector strategies, logging).
Turn rules into automated guardrails rather than documentation.
Work closely with our Infrastructure team to ensure safe automation practices, secrets handling, and permissions.
Create “golden paths” for developers:
Out-of-the-box test setup
Generated mocks & fixtures
Recommended patterns and linting rules
Fully managed test environments.

Requirements

Strong alignment with our values, find our values on our career page if you haven’t read up on them yet
You are proficient in English (spoken, written, and reading) at a CEFR Level C2 / ILR Level 5.
Strong experience in at least one modern testing framework (Playwright, Cypress, Jest, JUnit, etc.).
Solid software engineering background (TypeScript, JavaScript, Java, Python or similar).
Familiarity with Ruby (We use this in our backend systems)
Strong experience with Ruby to build or interact with backend services.
Experience building internal tooling, utilities, or engineering platforms.
Deep understanding of CI/CD (Buildkite, GitHub Actions, GitLab, CircleCI).
Knowledge of cloud environments (AWS, GCP, Azure) and containerisation (Docker, Kubernetes).
Strong understanding of architectural patterns.
Experience with quality telemetry, observability, or monitoring.
Experience with Performance, Load testing and tooling.
Shift-left and shift-right testing practices.
Testability-first thinking.
Ability to design high-leverage systems rather than isolated tests.
Understanding of resilience and reliability engineering principles.

Benefits

Fully remote: work from anywhere in the world!
Autonomy and trust to do your job: we care about outcomes over everything else.
Paid time away: all employees are given 35 days of PTO annually. We also offer a paid sabbatical after 5 years.
Generous U.S. benchmarked compensation and startup equity no matter where you are in the world.*
Awesome medical coverage with 100% coverage for you and your family, or medical reimbursement options where applicable!*
Parental leave for parents expanding their family, or just starting one.
Home office stipend to help you get up and running.
Learning & development stipend to help you level up your professional skills.
Annual bonus potential for roles that don't already receive variable income or commission.
Company retreats: Twice a year, the Circle team gets together for a fully paid company retreat in incredible places around the world! We’ve had past retreats in Colombia, Portugal, and Mexico, with more planned on the horizon.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills

TypeScriptJavaScriptJavaPythonRubyCI/CDtesting frameworksperformance testingload testingobservability

Soft skills

communicationcollaborationproblem-solvingadaptabilitycritical thinkingattention to detailinnovationfeedback loopsdesign thinkingstandards codification