Sr. Software Engineer in Test I

JOIN US ON OUR MISSION TO BECOME THE #1 RETAIL TRADING PLATFORM IN THE WORLD Welcome to the dynamic world of NinjaTrader! As an industry-leading trading platform and futures broker, we're empowering traders to take control of their financial destiny. How do we do it? We provide cutting-edge products and services that enhance the trading journey. Whether a seasoned pro or just starting out, NinjaTrader equips traders with award-winning software and brokerage services to navigate the world's leading financial markets with confidence. Our growth story is nothing short of exhilarating. Since 2003, NinjaTrader has been dedicated to understanding and supporting traders on their journey toward trading triumph. Through those efforts, our user base has grown to over 2 million users and we have become the number one rated futures brokerage worldwide. But we're not stopping there. We're constantly evolving, pushing boundaries, and modernizing the futures industry. Our commitment to innovation means users will always have access to dynamic tools, real-time support, and a community of like-minded traders. So, why work at NinjaTrader? Here, you're not just part of a team; you're part of a movement. We empower employees to reach new heights in their careers by providing a dynamic culture focused on social connection, professional development, and employee recognition initiatives. Sounds too good to be true? Take it from our employees. Join us as we redefine what's possible in trading, advocate for our customers, and continue our journey toward becoming the world's top retail-focused trading platform in the world. The team NinjaTrader is a futures-focused brokerage offering low commissions, award-winning trading platforms, and a suite of customizable tools for active traders. The platform delivers integrated multi-device trading across desktop, web, and mobile, with access to thousands of third-party trading apps and add-ons. The opportunity NinjaTrader's platforms are where customers trade futures in real time on live markets, and where we manage customer funds, process trades, handle clearing and settlement, and stay compliant every day. As a Senior Software Engineer in Test, you will own quality across this stack, from the web trading experience to the back-office services behind it. You'll be embedded as a peer alongside engineers and product managers. Your job is not to gate releases. It is to build automation that makes confident, fast shipping the default. Every workflow you validate touches real traders and real money. In This Role You Will Own quality end-to-end for your assigned squad, from test strategy through release confidenceTest across the full stack: browser UI workflows, APIs, databases, and backend servicesPartner with developers and PMs at the design stage to define acceptance criteria and build in testabilityDesign, build, and maintain automation frameworks using modular patterns (e.g., Page Object Model), primarily Playwright with TypeScriptDefine automation strategy and quality gates for critical trading flows, such as order activity, fund movement, and clearingWrite functional and integration tests where financial correctness and edge-case coverage are top prioritiesReview application code and engage on system design, API contracts, and architecture to ensure observable, testable behaviorOwn your squad's test reliability; treat flakiness with the same urgency as a production bugIntegrate tests into CI/CD pipelines with tagging strategies (e.g., smoke, regression) and clear quality gatesDesign test data strategies and use mocks and stubs for dependencies to keep tests isolated and repeatableDebug production issues using logs, database traces, and telemetry, and turn findings into regression coverageApply AI-assisted tools (code generation, test generation, failure analysis) to improve coverage and speed without compromising correctnessPerform manual and exploratory testing where it adds signal that automation can't, and convert findings into durable automated coverageMentor junior QA team members through code reviews, pairing, and direct feedbackUphold NinjaTrader SDLC and information security standards What you bring Experience testing trading or brokerage platforms (futures a plus); banking or other regulated financial services consideredStrong automation fundamentals, including a clear sense of what automation can and cannot doHands-on experience with Playwright and TypeScript/JavaScript (Cypress or Selenium considered, with a fast ramp to our stack)Full-stack testing experience: UI workflows through API validation (e.g., Postman) and database verificationExperience testing backend services, REST APIs, and distributed systemsProven experience designing and maintaining automation frameworks as the system they cover evolvesExperience integrating automated tests into CI/CD pipelines (e.g., Jenkins, GitHub Actions)Ability to work with engineers on testability-by-design, shaping architecture and API design to support reliable automationProven proficiency with AI-assisted engineering tools applied responsibly, plus the fundamentals to deliver without themAbility to own quality for a product area independently, with minimal oversightStrong communication skills; comfortable as a peer to engineers, product managers, and brokerage operations teams Nice to haves Python test automation with PyTestExperience testing event-driven systems with messaging platforms (e.g., GCP Pub/Sub)Relational database experience (Oracle preferred)Familiarity with trade lifecycle concepts: order management, clearing, settlement, margin, or regulatory reportingExperience testing real-time or data-intensive applicationsLinux command-line and log analysis skillsPerformance, load, or resilience testing in distributed systemsAccessibility testing knowledge (WCAG standards)Cloud-native testing experience (GCP preferred) We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, or veteran status. We are proud to be an equal opportunity workplace. Compensation Range: $82K - $132K