Software Engineer in Test III
NinjaTrader•Chicago, IL
•$82,000 - $132,000•Hybrid
About The Position
NinjaTrader's web trading platform is how our customers trade futures—in real time, on live markets. As a Software Engineer in Test on the Web team, you will own quality for a dedicated product squad, 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. What you test and validate is what traders depend on.
Requirements
- 5+ years of experience in QA engineering and test automation
- Strong hands-on experience with Playwright
- Solid experience writing automation in TypeScript or JavaScript
- Experience building and maintaining tests using Page Object Model or modular test architecture
- Demonstrated experience working with engineers on testability-by-design—shaping application architecture and API design to support reliable automation
- Experience integrating automated tests into CI/CD pipelines
- Strong understanding of test design principles and the software testing life cycle
- Proven proficiency with AI-assisted engineering tools (e.g., code generation, test generation, debugging assistants) applied responsibly in a production QA context
- Ability to own quality for a product area independently, with minimal oversight
- Strong communication skills—comfortable as a peer to engineers and product managers
Nice To Haves
- Experience testing real-time or data-intensive web applications
- API automation testing experience
- Accessibility testing knowledge (WCAG standards)
- Experience in trading platforms or fintech
Responsibilities
- Own quality end-to-end for an assigned product squad: from test strategy through release confidence
- Partner with developers and product managers at the design stage to define acceptance criteria and build testability into features from the start
- Design, develop, and maintain Playwright-based automated tests following Page Object Model (POM) patterns and the team's established automation architecture
- Write and maintain automation in TypeScript/JavaScript, contributing to shared frameworks and raising coverage standards across the team
- Collaborate with engineers on system design, API contracts, and application architecture to ensure observable, testable behavior
- Own your squad's test reliability—identify, analyze, and eliminate flakiness with the same urgency as a production bug
- Integrate tests into CI/CD pipelines using tagging strategies (e.g., smoke, regression) so every deployment ships with clear quality gates
- Apply AI-assisted development tools—code generation, test generation, failure analysis—to improve coverage and productivity
- Perform manual and exploratory testing where it adds signal that automation cannot, and convert findings into durable automated coverage
- Contribute to junior QA team members' growth through code reviews, pairing, and direct feedback
- Uphold NinjaTrader SDLC and information security standards
Benefits
- Annual target bonus of 10%
- 401K plan through ADP with company match up to 3.5%
- 18 days of paid time off per year
- Seven paid holidays
- Generous PTO
- 7 Paid Holidays Annually + 5 Conditional Holidays Annually
- 1 Service Day Annually
- 401k with 3.5% Company Match
- Paid Parental Bonding Leave
- Health, Vision, Dental Coverage
- Life and Disability Insurance Covered 100% by NinjaTrader
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
