Playwright UI Suite with Self-Healing Locators
End-to-end UI tests for the Sauce Labs demo store in Playwright + TypeScript, with locators that heal themselves — and hand off to Claude to propose a fix when they can't.
QA Engineer
Hi, I'm Josiah Aubin.
Senior SDET with 6+ years building Playwright and TypeScript test automation that plugs into CI/CD and lets teams ship with confidence.
About
I’m a QA engineer who works across the full testing spectrum: end-to-end automation in Playwright and TypeScript, REST and GraphQL API testing, and the manual regression and exploratory testing that catches what automation hasn’t reached yet.
Most recently, as a Senior SDET at BILL, I owned the test strategy for two major authentication migrations, both shipped with zero downtime or security issues. Along the way I moved 100+ tests from Selenium to Playwright two months ahead of schedule and mentored junior SDETs into contributing to CI/CD on their own.
I’m looking for a Senior SDET role on a growing product, where I can bring that same mix of automation depth and team mentorship.
Skills
Automation & Performance
Languages
Test Strategy
DevOps & Cloud
Tooling
Projects
Playwright UI Suite in Python
A pytest + Playwright end-to-end suite for the Sauce Labs demo store, covering login through checkout with the Page Object Model and Faker-generated test data.
Playwright API Test Suite
API tests for six JSONPlaceholder resources, built on Playwright Test with typed API clients and Zod schema validation of every response.
Experience
Download resume–
Senior SDET · BILL
Promoted from SDET II (Mar 2022 – Mar 2025)
Remote
- Designed the test strategy from scratch for a company-wide authentication unification (One Login), then carried it through a live migration to a new identity provider (ForgeRock/PingIdentity), with zero security issues or downtime across both.
- Wrote and maintained 150–200 Playwright tests across web and mobile for authentication, MFA and risk-based verification flows, using AI tools (Claude, Copilot) to speed up test generation and debugging.
- Migrated 100+ authentication and user tests from Selenium to Playwright, redesigning auth/cookie storage handling and finishing 2 months ahead of schedule with no CI/CD disruption.
- Built a Datadog dashboard giving the team daily visibility into pass rates, flaky tests and top failures across the full suite.
- Performed manual regression, exploratory and GraphQL API testing (Postman) on authentication flows and a public-facing API, catching edge cases automation didn't yet reach.
- Reviewed and approved QA code merges for a 30-engineer org, enforcing test design standards.
- Mentored 2 junior SDETs with no automation background to independent CI/CD contribution within 2 months.
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Software Engineer (QA / SDET) · In Time Tec
Meridian, ID
- Replaced ad hoc bug-finding with a structured QA process across client dev teams and an offshore team, aligning testing with release timelines.
- Trained 30+ developers and business managers on Agile/Scrum practices, improving delivery speed and requirement clarity.
- Ran load and performance testing with JMeter for a new client mobile app to validate behavior under peak traffic.
- Validated REST APIs with Postman for request/response accuracy, status codes and error handling.
Education
B.B.A. Information Technology Management
Boise State University · Boise, ID
- COBE ITM Signature Student
- Beta Gamma Sigma, Phi Kappa Phi & Phi Theta Kappa Honor Societies
Certifications
- AWS Certified Cloud PractitionerAmazon Web Services
- Microsoft Certified: Azure FundamentalsMicrosoft
- Certified Tester Foundation LevelISTQB
- Certified Scrum Master (CSM)Scrum Alliance
- Certified Scrum Product Owner (CSPO)Scrum Alliance
- Full-Stack Immersive ProgramCodeWorks