Description :

StockX is the world's first stock market of things for buying and selling limited edition, high demand products. Its an online marketplace and clothing reseller, primarily of sneakers. The Detroit-based company was founded by Dan Gilbert, Josh Luber, Greg Schwartz, and Chris Kaufman in 2015-2016. StockX has more than 800 employees in Downtown Detroit.

We're a live marketplace for buying and selling limited-edition sneakers, watches, bags, streetwear, trading cards, and collectibles. From Yeezy and Louis Vuitton to Rolex and Supreme, StockX has you covered, giving you unprecedented access to the new luxury' economy.

Our company values are broken down into what we call the Four T's : Trucks. Trenches. Transparency. Transformation.

They stand for making deadlines, being a team player, over-communicating everything, and turning everyone we work with into die-hard StockX fans. Each is a foundational tenet of not just our business, but the entire StockX culture. And as such they are an embodiment of what has made StockX one of the fastest-growing startups in the country.

Job Description :

Function : Software Engineering - QA / SDET

Kills : Automation Testing Manual Testing Mobile Apps Testing SDET

As an Associate Software Development Engineer in Test (SDET), you'll be part of a highly dynamic, innovative Engineering team working on modern Web and Mobile technologies.

You will collaborate closely with engineering and product teams to ensure high-quality releases. You'll be responsible for preparing test plans, writing and automating test cases, validating frontend functionality against backend systems, and contributing to automation maturity.

This role suits someone curious, detail-oriented, strong in problem-solving, and passionate about continuous learning. This role is for one of our XT teams(Experience Team) responsible for payments, user identity, and order management flows.

Responsibilities :

- Work collaboratively with product managers and engineers to deliver high-quality software.

- Understand BRDs/PRDs, derive scenarios, and prepare detailed test plans.

- Create well-structured test cases following QA best practices.

- Automate test cases for Web, iOS, and Android applications using WebdriverIO, Selenium, and Appium.

- Validate frontend data against backend responses (API checks, JSON, logs).

- Perform functional, regression, smoke, and end-to-end testing for web and mobile apps.

- Execute tests on cloud-based platforms (e. g., Allure TestOps, LambdaTest, BrowserStack, SauceLabs).

- Generate and maintain rich test reports using Allure or equivalent frameworks.

- Participate in sprint ceremonies, including planning, grooming, and release testing.

- Raise defects clearly, identify risks early, and ensure timely resolution.

- Contribute to automation frameworks and maintain robust test suites.

- Integrate automated tests into CI/CD pipelines.

- Collaborate with QA peers to improve test coverage, share results, and solve challenges.

- Contribute to long-term QA strategy, automation enhancements, and tooling improvements.

- Use MCP tools (good to have) for assisted test creation and self-healing automation.

- Review documentation and contribute to test strategies, automation design, and quality processes.

Requirements :

- 2+ years of experience in Web and Mobile Automation Testing.

- Strong experience with : WebdriverIO, Selenium, Appium, JavaScript/TypeScript.

- Experience testing iOS and Android apps (manual + automation).

- Experience with cloud execution platforms (LambdaTest, BrowserStack, SauceLabs).

- Experience with reporting frameworks such as Allure.

- Ability to debug issues using DevTools, ADB, Xcode tools, APIs, and logs.

- Familiarity with Git and CI/CD pipelines.

- Strong analytical and debugging capabilities.

- Excellent communication and documentation skills.

- Curious, proactive, and eager to learn.

- Able to collaborate effectively in a fast-paced environment.

Nice to have skills :

- MCP experience for test creation/self-healing automation.

- Exposure to performance, load, or security testing.

- Familiarity with modern frontend frameworks.

- API automation or end-to-end automation experience.

- Test management tools (Jira, TestRail).

- Experience working in Agile/Scrum environments.

- Broader coding experience (Java, C#, TypeScript) or OOP fundamentals.