Quality Assurance Engineer

ProphetX; New York (NY); À distance; USD 80 000 - 120 000; Plein temps

Avantages offerts par ce poste

Medical, dental, and vision coverage

Equity opportunities

Flexible time off

Résumé du poste

ProphetX is seeking a QA Engineer to help ensure quality across web, mobile, and API platforms. You will validate new features, run regression cycles, test APIs and backend behavior, and decide when a release is ready. You’ll switch between platforms and work with product, engineering, mobile QA, and automation engineers.

Remote role for USA-based candidates, with preference for overlap with ET/CT hours. Be part of a fast-moving Agile environment in a growing betting exchange startup.

Qualifications

• Hands-on QA experience for web/mobile/API
• Strong manual testing skills and test plan writing
• Experience with API testing tools (Postman)
• Familiarity with SQL for data validation
• Experience with Jira and test management tools

Responsabilités

• Test new features across web, mobile, and API layers with product/engineering teams
• Write and maintain test cases and test plans
• Execute regression testing before releases and verify builds
• Perform exploratory testing to uncover edge cases
• Validate backend/API behavior including data integrity
• Collaborate to identify candidates for automation and contribute to coverage

Connaissances

API testing

Manual testing

Test case design

Regression testing

Exploratory testing

Written communication

Agile

Outils

Postman

Jira

TestRail

SQL

Description du poste

Quality Assurance Engineer

Application Deadline: 27 November 2026

Department: Engineering

Employment Type: Full Time

Location: Remote - USA

Reporting To: QA Lead

Compensation: $80,000 - $120,000 / year

Description

As a QA Engineer, you will be a generalist who supports quality across the platform. You will validate new features, run regression cycles, test APIs and backend behavior, and help decide when a release is ready to ship. You will work with whichever team needs coverage most, so you are comfortable switching between web, mobile, and API testing, and between feature work and release crunch. You report to the QA Lead and partner closely with the mobile QA and automation engineers and with the product.

Candidates based in the Eastern or Central time zones are preferred, so the working day overlaps well with the engineering team.

What You’ll Own

• Test new features across web, mobile, and API layers in close 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 ahead of releases and confirm each build meets quality standards before it ships.


• Perform exploratory testing to find issues that scripted test cases miss.


• Test backend and API behavior, including request/response validation, error handling, and data integrity.


• Validate wallet, balance, and financial transaction flows with the care that real-money products require.


• Identify, document, and track defects with clear reproduction steps, evidence, and severity assessments, and verify fixes.


• Work with the mobile QA engineer and the automation engineer to identify regression cases worth automating, and contribute to automated test coverage as time allows.


• Flag quality risks, gaps in coverage, and process improvements to the QA Lead.

What We’re Looking For

• 3 to 5 years of hands-on QA experience on web and/or mobile software products.


• Strong manual testing skills: writing clear test cases and test plans, running regression suites, and exploratory testing.


• Experience testing APIs with Postman or similar tools, and 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.


• Interest in betting and prediction markets (markets, odds, events, settlements). Direct sportsbook or betting experience is a strong plus.


• Comfort using AI tools (e.g., ChatGPT, Copilot, Claude) to speed up test design and bug triage.


• Clear written communication, and the ability to prioritize when several teams need testing at once.


• Comfortable in a fast-moving Agile environment with regular releases, and working remotely with a day that overlaps ET or CT business hours.

Why Join Us!

• Competitive compensation aligned to role and market


• Equity opportunities so you share in what we’re building


• A clear connection between impact and reward

• Medical, dental, and vision coverage


• Flexible time off built on trust and accountability


• A culture that respects your time and avoids unnecessary meetings

• Fully remote within the U.S.


• Flexibility to work in the way that helps you do your best work

• Be the go-to quality expert across web, mobile, and API at a growing betting exchange startup


• Take on a high-impact role with direct influence on user experience and platform reliability


• Work closely with a remote engineering team on a modern, evolving platform


• Be part of a CFTC-certified exchange as it scales in the U.S. market