What you'll do:We are seeking a Sr. Software Engineer to join our Evaluation Services team. Our Evaluation Services business powers funded trader programs that give aspiring traders a pathway to professional trading capital. In this role, you will serve as a trusted technical advisor to our partners, working closely with Technical Account Managers and partner engineering teams to drive successful integrations. You will be the go-to expert for complex API challenges, setting the quality bar for technical support while thriving in a fast-paced environment where no two days look the same.
In this role you will:- Serve as the senior technical point of contact for partners integrating with NinjaTrader APIs, providing expert guidance on authentication, endpoints, data models, and architectural best practices
- Partner directly with external engineering teams to debug complex integration issues, conduct code reviews of their implementations, and accelerate time-to-production
- Collaborate closely with Technical Account Managers to deliver a seamless partner experience, translating business requirements into technical solutions and providing real-time support during critical integration milestones
- Diagnose and resolve complex API issues spanning WebSocket connections, REST endpoints, and real-time data feeds, often under time pressure with high-value partners
- Own the quality standard for API support, establishing best practices for troubleshooting, documentation, and partner communication that the broader team can follow
- Build and enhance internal tools, scripts, and diagnostic utilities that improve support efficiency and enable faster issue resolution
- Drive continuous platform improvement by synthesizing partner feedback into actionable recommendations for Product and Engineering, influencing the API roadmap
- Mentor junior team members on technical troubleshooting, partner communication, and maintaining composure in high-stakes situations
- Develop deep expertise in NinjaTrader's evaluation platform, trading systems, and API architecture to provide authoritative technical leadership
What you'll need:- 5+ years of software engineering experience, with deep hands-on expertise in API development, system integrations, and building or supporting partner-facing platforms
- Proven track record of working alongside Technical Account Managers and cross-functional teams to deliver successful partner outcomes in a fast-paced environment
- Strong proficiency with REST APIs, WebSockets, JSON, OAuth, and API debugging tools (Postman, curl, browser developer tools, network analyzers)
- Hands-on experience with TypeScript/JavaScript, Python, or similar languages for scripting, debugging, and building reference implementations
- Demonstrated ability to work directly with partner engineering teams by reviewing code, pair debugging, and guiding architectural decisions
- Excellent troubleshooting skills with the ability to analyze logs, trace API calls, and isolate issues across distributed systems under pressure
- High quality standards with attention to detail in documentation, communication, and technical deliverables
- Ability to think on your feet and adapt quickly when priorities shift or unexpected issues arise
- Outstanding written and verbal communication skills with the ability to translate complex technical concepts for both technical and non-technical audiences
- Self-starter who thrives in ambiguity and can manage multiple high-priority partner engagements simultaneously
Bonus points for:- Experience with trading platforms, fintech, or capital markets technology
- Familiarity with React, Node.js, or full-stack TypeScript development
- Background in developer experience (DevEx), developer advocacy, or technical evangelism
- Experience with API documentation tools (Swagger/OpenAPI, ReadMe, or similar)
- Prior experience supporting enterprise or B2B partner integrations
- Passion for futures, derivatives, and trading technologies
Compensation:The salary range for this role will be $125,000.00 - $175,000.00 USD. In addition, this position will also receive an annual target bonus of 12%. Bonus pay at NinjaTrader 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 401K 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.
Location:This role is based in Chicago, IL. *There may be remote flexibility for exceptional candidates in the following 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:For Chicago-based employees, we follow a hybrid work schedule: In-office Tuesday through Thursday, with remote work on Mondays and Fridays. In addition to these weekly remote days, we offer:
- 20 additional flex remote days annually
- 5 Company Wide Office-Optional weeks tied to major holidays
Our Core Benefits Include:- 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
