Engineering

Senior QA Engineer

We’re building the world’s first Creator Casino: a creator-powered gaming network where influencers launch Rooms, run drops/missions, and monetize Originals built on top of certified game engines—powered by an AI Host layer and programmable incentives designed for high-frequency sessions and measurable creator performance.

This role helps us scale creator-led distribution, room economics, and session-velocity gameplay—without compromising trust, compliance, or margin.

Role Overview

We are seeking a Senior QA Engineer who is comfortable working across backend systems, infrastructure, and frontend applications. This role focuses on ensuring overall product quality by validating how APIs, databases, services, and user-facing interfaces work together as a complete system.

The ideal candidate is able to:

  • Understand end-to-end flows in transactional platforms.

  • Verify that frontend behavior correctly reflects backend logic.

  • Ensure systems remain reliable under different scenarios, including errors and retries.

Responsibilities

  • Design and execute end-to-end test plans covering frontend, backend, and integrations.

  • Validate backend APIs, transactional flows, and integrations between services.

  • Test critical flows such as balance checks, debits, credits, rollbacks, and retries.

  • Verify idempotency, error handling, and failure scenarios.

  • Validate frontend behavior against backend state and API responses.

  • Test API security mechanisms (HMAC signatures, headers, secrets).

  • Perform integration testing across logically separated systems.

  • Validate database integrity, constraints, and state transitions.

  • Build and maintain automated tests for APIs and frontend flows.

  • Collaborate closely with Backend and DevOps teams (shift-left QA).

  • Validate releases across staging and production-like environments.

Required Skills & Experience

  • 5+ years of experience in QA / Software Testing roles.

  • Strong experience testing backend APIs and microservices.

  • Strong experience testing frontend applications (web).

  • Experience with API testing tools (Postman or similar).

  • Experience with frontend test automation (Playwright, Cypress, or equivalent).

  • Experience with backend/API automation (JavaScript/TypeScript or Python-based).

  • Ability to read and reason about backend code and SQL queries.

  • Understanding of transactional systems, idempotency, and data consistency.

  • Experience working in cloud-based environments (AWS preferred).

  • Ability to reason across system boundaries (frontend → backend → infra).

Additional Requirements

  • Solid understanding of how frontend actions map to backend side effects.

  • Ability to validate UI behavior using backend data and logs.

  • Comfort working with multiple environments and deployments.

  • Strong attention to detail and ownership mindset.

Nice to Have (Optional)

  • Experience in fintech, iGaming, or payment platforms.

  • Experience validating PostgreSQL schemas and migrations.

  • Experience integrating QA into CI/CD pipelines.

  • Basic understanding of infrastructure concepts (Docker, environments, deployments).

Interested in this role?

We'd love to hear from you. Apply below or reach out at careers@jaqpot.com

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