Juice Exchange, LLC
Skills: React, TypeScript, Rust, SQL, Docker, CI/CD, Testing
About JuiceX
JuiceX is a rapidly growing prediction markets exchange. Our company is building the infrastructure to offer a fully compliant, transparent, and innovative marketplace for event driven contracts under U.S. regulatory frameworks.
The Opportunity
We are hiring a Senior QA Engineer to own quality across the full delivery lifecycle, from business requirement through production sign off. At a regulated exchange where trading, clearing, and the payments that fund them all have to be correct, quality protects our customers' money and our regulatory standing. You will work across distributed backend services in Rust, web and mobile front ends in React and TypeScript, a cloud native platform on Kubernetes, and integrations with payment, identity, and market infrastructure partners.
Professional Experience
Owning quality across the full delivery lifecycle, from requirements through production sign off Risk based test strategy and test design across unit, integration, end to end, performance, and exploratory testing Hands on test automation and the frameworks behind it, integrated into CI/CD Testing distributed backend services and modern web and mobile front ends Reading and writing code and validating data directly, not testing only through the UI Using AI coding and testing tools to accelerate work without lowering the quality bar
Qualifications
5+ years in QA or quality engineering, including owning release sign off for production systems Strong test design and risk analysis skills Hands on test automation, ideally Playwright with TypeScript, plus API testing Comfortable reading and writing code in at least one backend language (Rust is a plus) Working SQL for data validation Real, regular use of AI coding and testing tools, with examples you can share CI/CD experience Clear written communication Preferred: financial services experience, including trading, payments, or fintech Preferred: experience in regulated environments Preferred: performance and load testing Pre…
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