Sr. Software Engineer II (Backend, Scala or C++)

Company: NinjaTrader
Location: Chicago
Posted on: February 16, 2026

Job Description:

Job Description Job Description Disclaimer: Please be advised that the most accurate and up-to-date information about our open roles—including job descriptions, compensation, and benefits—can only be guaranteed on our official job board. For the latest listings and details, please visit: https://job- boards.greenhouse.io/ninjatrader. 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. What you'll do: As a Backend Software Engineer specializing in Scala in a Kubernetes environment, you will be instrumental in architecting and implementing scalable, containerized backend solutions for our advanced trading systems. This role requires a deep understanding of distributed systems, container orchestration, and a passion for building resilient and efficient financial technology. You will work alongside NinjaTrader's talented development team, designing, building, and deploying back-end server solutions dealing with distributing large amounts of data. In this role you will: Design, develop, and maintain backend systems using Scala, leveraging the power of Kubernetes for container orchestration Architect, deploy, and manage backend applications in a Kubernetes environment to ensure scalability, availability, and resilience Implement and enhance microservices architecture for trading applications, promoting modularity and maintainability Develop distributed systems to support the high-performance and low-latency requirements of trading platforms Implement robust monitoring and logging solutions to track and analyze the performance of backend systems in real-time Integrate backend systems with various market data feeds, ensuring accurate and timely data for trading activities Collaborate with cross-functional teams, including frontend developers, UX/UI designers, and other engineers, to deliver end-to-end trading solutions Create and maintain technical documentation for backend systems, Kubernetes configurations, and deployment procedures Direct contact with project managers to help deliver solutions What you'll need: BA or MS degree in Computer Science, Software Engineering, or a related field 7 years of software development experience with designing, implementing, testing, and maintaining real-time applications Professional experience with Scala backend software development Experience with Kubernetes and cloud services such as Google Cloud Platform Dependable team player with a strong work ethic, exceptional accuracy, good analytical and problem-solving skills Comfort resolving uncertainty and communicating for issue resolution Ability to take full ownership (design, implement, test, deploy, maintain, iterate) of projects Financial knowledge is helpful but not required Compensation: The salary range for this role will be $165,000.00 - $190,000.00 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, New York, North Carolina, Ohio, Oregon, South Carolina, Texas, Utah, Virginia, Washington, Washington D.C., Wisconsin, New Jersey, Pennsylvania. 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 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.

Keywords: NinjaTrader, Arlington Heights , Sr. Software Engineer II (Backend, Scala or C++), IT / Software / Systems , Chicago, Illinois