Senior QA Engineer - AI-Driven Testing for FinTech

JuiceX; Florida; On-site; USD 90,000 - 150,000; Full time

Job summary

JuiceX, a Florida-based prediction markets exchange, seeks a Senior QA Engineer to own quality across the full delivery lifecycle. You will work with Rust-backed services, React/TypeScript front ends, and a Kubernetes-based cloud platform, ensuring correctness for trading, payments, and regulatory compliance.

You will design risk-based tests, build automated suites, and collaborate across teams to prevent defects and enable reliable production releases.

Qualifications

• Experience delivering quality across full delivery lifecycle, including production sign off.
• Strong test design and risk analysis skills with practical automation.
• Hands-on automation with Playwright and API testing; CI/CD integration.
• Ability to read/write code in at least one backend language (Rust a plus).
• SQL for data validation and experience with regulated environments is a plus.
• Regular use of AI coding/testing tools and clear written communication.

Responsibilities

• Turn business requirements into testable acceptance criteria before development.
• Define risk-based test strategies for initiatives across all test levels.
• Design, build, and maintain automated test suites integrated into CI/CD.
• Review changes for test quality and diagnose flaky tests.
• Own go/no-go decisions for production releases with evidence.
• Leverage AI to create test scenarios and automate maintenance tasks.
• Perform agent-driven exploratory and UI testing; evaluate AI features.

Skills

QA Engineering

Test design

Automation (Playwright/TS)

API testing

SQL

CI/CD

AI tooling

Rust

Tools

Playwright

TypeScript

CI/CD tooling

Rust

Job description

JuiceX, a Florida-based prediction markets exchange, seeks a Senior QA Engineer to own quality across the full delivery lifecycle. You will work with Rust-backed services, React/TypeScript front ends, and a Kubernetes-based cloud platform, ensuring correctness for trading, payments, and regulatory compliance.

You will design risk-based tests, build automated suites, and collaborate across teams to prevent defects and enable reliable production releases.