Sr. Engineering Manager, Full Stack - NinjaTrader Arena
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About the Role
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:
NinjaTrader Arena is our simulated futures trading competition platform and a core growth engine for the company. Arena introduces new traders to futures markets through structured, time-boxed competitions powered by live market data and simulated accounts. It is designed to attract and engage a new generation of retail traders and expand NinjaTrader’s reach beyond our traditional customer base.
The Arena team is iterating rapidly on competition formats, engagement mechanics, real-time leaderboards, and growth loops. The platform must support bursty, marketing-driven traffic patterns and real-time competition dynamics while maintaining clear architectural separation from NinjaTrader’s core trading systems. Arena is a dedicated vertical with its own product and engineering leadership, focused explicitly on user acquisition and growth.
We are hiring a Sr. Engineering Manager to lead Arena engineering. You will build and scale the Arena engineering team, define its technical strategy, and partner closely with Product and Design to shape the future of the platform. In the near term, this means leading a high-velocity squad focused on rapid experimentation and architectural flexibility. Longer term, as Arena achieves product-market fit and scales, this role is expected to evolve into multi-team leadership, shaping the organization, architecture, and operating model of a standalone growth business within NinjaTrader.
In this role you will:
- Build and lead the founding Arena engineering team, hiring high-caliber full-stack engineers and establishing a culture optimized for ownership, speed, and technical rigor
- Partner deeply with Product and Design as the engineering co-owner of the Arena growth strategy, shaping experimentation velocity, competition mechanics, and platform evolution during product-market fit discovery
- Define and evolve Arena’s technical architecture, ensuring rapid iteration today while preserving clean boundaries and extensibility for future scale
- Design systems that handle bursty, marketing-driven traffic patterns, real-time competition state, and leaderboard updates without compromising reliability or coupling risk to NinjaTrader’s core trading infrastructure
- Enforce engineering standards for reliability, observability, deployment automation, and operational readiness on Google Cloud Platform, including defining service-level expectations for Arena as an independent vertical
- Own Arena’s engineering execution end-to-end, balancing experimentation speed with long-term system health and technical leverage
- Design the team’s future organizational shape, identifying when to introduce additional squads and technical leadership as Arena scales post product-market fit
- Hire and develop future technical leaders within Arena, building the senior density required to support multi-team growth
- Participate in on-call and incident response as an engineering leader, modeling operational accountability and ensuring systems are built for operators as well as developers
- Represent Arena engineering strategy in cross-functional and executive discussions, clearly articulating trade-offs between growth velocity, system resilience, and architectural investment
What you'll need:
- Bachelor’s degree in Computer Science, a related field, or equivalent
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