Sr. Software Engineer II, Fullstack NT Connect

Disclaimer: Please be advised that the most accurate and up-to-date information about our open rolesincluding job descriptions compensation and benefitscan only be guaranteed on our official job board. For the latest listings and details please visit: 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 were 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 worlds 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 were not stopping there. Were 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 youre not just part of a team; youre 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 trueTake it from our employees.

Join us as we redefine whats possible in trading advocate for our customers and continue our journey toward becoming the worlds top retail-focused trading platform in the world.

What youll do:

NinjaTrader is building NT Connect our API-based brokerage integration layer that powers connections with introducing brokers fintech partners and third-party platforms. Were looking for a Sr. Fullstack Engineer to join the NT Connect team and help us design and build the services APIs and developer experience that make our platform a joy to integrate with. If youre passionate about crafting high-quality full-stack systems in a fintech environment where your work directly shapes partner outcomes and trading experiences this is your opportunity. Youll work across the entire stack backend services API architecture web tooling and partner integration workflows to create a scalable secure high-throughput platform. As a senior engineer on the NT Connect team your contributions will significantly impact the developer experience product roadmap and overall business outcomes.

In this role you will:

• Contribute to the development optimization and operational health of NT Connectsweb-based platform building new features and maintaining existing ones across the full stack
• Design and implement scalable efficient backend services and APIs using and TypeScript deployed on cloud-based infrastructure (e.g. Google Cloud Platform)
• Collaborate closely with UX/UI designers to translate design prototypes into high-quality scalable frontend code that adheres to NinjaTraders design system and branding guidelines
• Ensure seamless integration of frontend components with backend systems including account management tools partner onboarding flows and real-time market data feeds
• Develop and maintain real-time performance monitoring and logging solutions to ensure the platform remains responsive observable and production-ready
• Collaborate with other engineering teams QA and Product Managers to deliver end-to-end partner solutions that meet reliability compliance and usability standards
• Leverage AI coding agents (e.g. GitHub Copilot Cursor Claude Code) and modern developer tooling to accelerate delivery improve code quality and raise the teams engineering velocity

What youll need:

• Bachelors or Masters degree in Computer Science Software Engineering or a related field (or equivalent practical experience)
• 8 years of professional software development experience with strong depth across both frontend and backend systems
• Strong backend engineering skills with and TypeScript including building production-grade APIs authentication flows and API versioning strategies
• Proven experience designing RESTful and WebSocket APIs for external partners or B2B platforms
• Strong frontend engineering skills with a modern framework (React preferred); ability to deliver complex data-driven UIs with high attention to design fidelity
• Hands-on experience with cloud-native environments: Docker Kubernetes and GCP
• Strong SQL and database knowledge including schema design query optimization and migrations
• Experience with performance optimization caching strategies and event-driven architectures
• Demonstrated use of AI coding agents (e.g. GitHub Copilot Cursor Claude Code) to meaningfully improve personal and team productivity treating AI-assisted development as a standard part of the modern engineering workflow
• Strong written and verbal communication skills; comfortable working with partner-facing and cross-functional teams with the ability to take full ownership of projects from design through deployment maintenance and iteration

Bonus points for:

• Familiarity with OAuth2 JWT API key systems or signed request authentication patterns
• Experience with financial brokerage or trading systems
• Experience with message queues or streaming platforms (e.g. Pub/Sub Kafka)
• Experience building SDKs or developer toolchains for external integrators
• Familiarity with infrastructure-as-code tools such as Terraform
• Experience working in a regulated fintech trading or brokerage environment

Compensation:

The salary range for this role will be $140000.00 - $190000.00 addition this position will also receive an annual target bonus of 10%. 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. We are not open to remote candidates for this role

Hybrid:

For Chicago-based employees we follow a hybrid work schedule: In-office Tuesday through Thursday with remote work on Mondays and 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.