Quality Assurance Engineer

ProphetX•New York, NY

1d•Remote

About The Position

The Quality Assurance Engineer is a generalist responsible for supporting quality across the platform. The role validates new features, runs regression cycles, tests APIs and backend behavior, and helps determine when releases are ready to ship. The engineer works with the teams that need testing coverage most, moving between web, mobile, and API testing and between feature work and release periods. The role reports to the QA Lead and partners closely with the mobile QA and automation engineers and product. Candidates in Eastern or Central time zones are preferred so their working day overlaps with the engineering team. The engineer tests features throughout active development, maintains and executes test cases and plans, conducts exploratory testing, validates backend and API behavior, and verifies financial transaction flows. They document and track defects, verify fixes, contribute to automation where time allows, and flag quality risks and process improvements. This is a fully remote role within the U.S. at a growing betting exchange startup.

Requirements

3 to 5 years of hands-on QA experience on web and/or mobile software products.
Strong manual testing skills, including writing clear test cases and test plans, running regression suites, and exploratory testing.
Experience testing APIs with Postman or similar tools.
Working knowledge of SQL for validating data.
Experience with Jira and a test management tool such as TestRail.
Experience testing financial, payments, or wallet flows, or other products where errors have real monetary impact.
Comfort using AI tools such as ChatGPT, Copilot, or Claude to speed up test design and bug triage.
Clear written communication and ability to prioritize when several teams need testing at once.
Comfort working in a fast-moving Agile environment with regular releases and remotely with a workday overlapping Eastern or Central time business hours.

Nice To Haves

Interest in betting and prediction markets, including markets, odds, events, and settlements.
Direct sportsbook or betting experience.

Responsibilities

Test new features across web, mobile, and API layers in collaboration with product and engineering during active development.
Write, maintain, and execute test cases and test plans for new and existing features.
Run regression testing cycles before releases and confirm builds meet quality standards before shipping.
Perform exploratory testing to find issues not covered by scripted test cases.
Test backend and API behavior, including request and response validation, error handling, and data integrity.
Validate wallet, balance, and financial transaction flows.
Identify, document, and track defects with reproduction steps, evidence, and severity assessments, and verify fixes.
Work with the mobile QA engineer and automation engineer to identify regression cases for automation and contribute to automated test coverage as time allows.
Flag quality risks, coverage gaps, and process improvements to the QA Lead.