Sr. Software Test Engineer, Web Chicago or Remote*

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
• 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

Qualifications

• 7+ years of experience in QA engineering and test automation
• Strong hands‑on experience with Playwright
• 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

Bonus Points for

• Experience testing real‑time or data‑intensive web applications
• API automation testing experience
• Accessibility testing knowledge (WCAG standards)
• Experience in trading platforms or fintech

Compensation

The salary range for this role will be $100,000.00 – $150,000.00 USD. In addition, this position will also receive an annual target bonus of 10% – the bonus pay is based on individual performance (50%) as well as company/team performance (50%).

Salary and bonus earnings are only two components of the total compensation package offered by NinjaTrader. NinjaTrader offers a 401(k) plan through ADP under which the company will match up to 3.5% of employee contributions. Annual paid time off allowance accrues at a rate of 18 days per year (some positions may qualify for more) plus seven paid holidays.

Benefits

• Generous PTO
• 7 paid holidays annually + 5 conditional holidays annually
• 1 service day annually
• 401k with 3.5% company match
• Life and disability insurance covered 100% by NinjaTrader

Location

This role is based in Chicago, IL. Remote flexibility is available for exceptional candidates in select states: California, Colorado, Florida, Georgia, Illinois, Indiana, Minnesota, Missouri, Montana, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, South Carolina, Texas, Utah, Vermont, Virginia, Washington, Washington DC, Wisconsin.

Hybrid Work Schedule

• In‑office Tuesday through Thursday, remote work on Mondays and Fridays (for Chicago‑based employees)
• 20 additional flex remote days annually
• 5 company‑wide office‑optional weeks tied to major holidays

Equity & EEO Statement

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.