Hybrid Senior Software Test Engineer, Web

at NinjaTrader

• Job title: Senior Software Test Engineer, Web
• Job type: Full Time
• Experience level: Senior
• Salary: $100,000 - $150,000 per year
• Degree requirement: Bachelor's Degree
• Tech skills: JavaScript, SDLC, TypeScript
• Location requirements: Hybrid, Chicago, United States

About the role

• Sr. Software Engineer in Test at NinjaTrader driving quality assurance for the web trading platform. Collaborate closely with teams to define testing strategies and maintain automation standards.

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

Requirements

• 7+ 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

Benefits

• 401k with 3.5% Company Match
• Generous PTO
• 7 Paid Holidays Annually + 5 Conditional Holidays Annually
• 1 Service Day Annually
• Paid Parental Bonding Leave
• Health, Vision, Dental Coverage
• Life and Disability Insurance Covered 100% by NinjaTrader
• 20 additional flex remote days annually
• 5 Company Wide Office-Optional weeks tied to major holidays