ProphetX

Peer-to-peer sports betting exchange.

Quality Assurance Engineer

Manual & Functional QAUpdated on Nov 13

Full-time$80k - $120k /yr

About the Job

Requirements

Have 3 to 5 years of hands-on quality assurance experience on web and/or mobile software products.
Have strong manual testing skills, including writing test cases and test plans, running regression suites, and exploratory testing.
Have experience testing application programming interfaces with Postman or similar tools, and working knowledge of SQL for data validation.
Have experience with Jira and a test management tool such as TestRail.
Have experience testing financial, payment, or wallet flows, or other products where errors have real monetary impact.
Be comfortable using artificial intelligence tools such as ChatGPT, Copilot, or Claude to speed up test design and bug triage.
Have clear written communication and the ability to prioritize when several teams need testing at once.
Be comfortable working in a fast-moving Agile environment with regular releases and remotely with workday overlap with Eastern or Central business hours.

Responsibilities

Test new features across web, mobile, and application programming interface 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 application programming interface behavior, including request and response validation, error handling, and data integrity.
Validate wallet, balance, and financial transaction flows with the care required for real-money products.
Identify, document, and track defects with clear reproduction steps, evidence, and severity assessments, and verify fixes.
Work with the mobile QA engineer and automation engineer to identify regression cases worth automating, and contribute to automated test coverage as time allows.
Flag quality risks, coverage gaps, and process improvements to the QA Lead.

Desired Qualifications

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

Role Overview

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.

Key Responsibilities & Areas of Ownership

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.

Required Skill Set & Evaluation Criteria

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.

About the Company

ProphetX

Peer-to-peer sports betting exchange.

ProphetX provides a peer-to-peer sports betting exchange where users bet against each other rather than against a house. The platform matches bets by allowing users to set or accept odds, and Prophet acts as an intermediary, taking no financial risk on outcomes and earning revenue by taking a commission on winning bets. This contrasts with traditional sportsbooks that set odds and pay out from their own funds. After a market-access deal with Caesars, ProphetX launched in New Jersey in 2022, became the first regulated U.S. peer-to-peer exchange, and raised capital from investors. In 2024, it pivoted to a sweepstakes model that uses virtual currency for free-to-play contests with paid entries to participate, enabling operation in more states. Overall, the company aims to provide a scalable, low-risk betting experience with fair prices by letting users trade bets, then expand nationwide through the sweepstakes approach.

Company size: 51-200
Company stage: Early VC
Total funding: $45M
Headquarters: New York City, United States
Founded: 2018

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