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Principal Site Reliability Engineer

2 months ago

Chicago, United States NinjaTrader Full time

NinjaTrader is an investor-backed, growth-stage fintech company with an award-winning platform and over 1.5 million users. We are building products and services that empower active traders to easily analyze and react to data from the world's leading financial markets. Located in Chicago, our unique employee-centric company culture is one that our team finds inviting, comfortable and fun. Please visit www.ninjatrader.com to learn more about our business.

NinjaTrader is an investor-backed, growth-stage modern fintech company offering award-winning software, brokerage services, and world-class support to a community of 1.7 million users around the globe. Our cloud-based futures trading platform is available via desktop, mobile, and web applications, enabling customers to trade from any location. 

We are seeking a highly skilled and experienced Principal Engineer to join our Platform team. In this pivotal role, you will help us scale our infrastructure for continuous and programmatic optimization of cloud resources, driving down costs while enhancing performance and utilization. As the senior-most engineer on the platform team, your work will have a profound impact on our core high-throughput, low-latency trading application, directly influencing our business’s bottom line. 

In this role, you will: 

  • Design, implement and evolve our cloud infrastructure to support our applications, services and ever-growing scale. 
  • Collaborate with engineering, operations, and security teams to define and implement cloud architecture for moving on-prem. application and services to cloud while maintaining a high bar for security, reliability, and scalability. 
  • Enhance monitoring and optimize the cloud infrastructure for performance, cost, and security. 
  • Implement and manage CI/CD pipelines for cloud-based applications. 
  • Automate cloud operations and infrastructure management tasks using tools such as Terraform. 
  • Ensure compliance with security policies and industry standards.
  • Mentor and guide peers and junior engineers in cloud infrastructure and DevOps best practices. 

Key Position Requirements: 

  • Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent experience). 
  • 10+ years of progressive engineering experience in Site Reliability or adjacent disciplines (Platform, Backend Engineering, etc.).
  • 5+ years of experience in deploying, managing, and supporting modern cloud-based environments and infrastructure like AWS/Azure/GCP, Docker, Kubernetes, IaC, etc. 
  • Experience supporting a 24/7 cloud-based environment via on-call.
  • Exceptional troubleshooting, debugging, and diagnostic skills for cloud and web-based technologies using industry standard observability tooling and frameworks.
  • Proven experience in designing, deploying, and managing large-scale cloud infrastructure. 
  • Strong scripting skills in languages such as Python, Bash, or equivalent. 
  • Deep understanding of web applications and ability to troubleshoot HTTP/HTTPS, WebSockets, TLS, DNS, TCP/IP, and similar protocols.
  • In-depth knowledge of networking, security, and identity management in cloud environments. 
  • Familiarity with CI/CD tools such as Jenkins, GitHub Actions, or equivalent. 
  • Excellent problem-solving skills and the ability to work under pressure. 
  • Excellent communication skills and can articulate a technical problem in a concise manner to non-technical audience.



Our Core Benefits Include:

  • 15 days PTO per year
  • 7 paid holidays annually
  • 401k with Company Match
  • Health, Vision, Dental Coverage
  • Life and Disability Insurance covered 100% by NinjaTrader
  • And more


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.