NinjaTrader
fintech
Sr.SoftwareEngineerII,Fullstack-NTConnect
Neural analysis suggests this role is
optimal for Senior candidates.
“Sr. Software Engineer II, Fullstack - NT Connect at NinjaTrader. Skills: Fullstack development, Node.js, TypeScript, React, API design (RESTful, WebSocket), Cloud-native environments (GCP, Docker, Kubernetes), SQL, AI coding agents. Contribute to the development, optimization, and operational health of NT Connect's web-based platform. building new features and maintaining existing ones across the full stack”
What You'll Achieve.
create a scalable, secure, high-throughput platform; significantly impact the developer experience, product roadmap, and overall business outcomes; ensure the platform remains responsive, observable, and production-ready; meet reliability, compliance, and usability standards; accelerate delivery, improve code quality, and raise the team's engineering velocity
Industry & Context.
What They're Looking For.
Must Have
8+ years of professional software development experience, with depth across both frontend and backend systems, backend engineering skills with Node.js 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, 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, 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, written and verbal communication, 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
Nice to Have
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
What You'll Do.
Contribute to the development
and operational health of NT Connect's web-based platform
building new features and maintaining existing ones across the full stack
Design and implement scalable
efficient backend services and APIs using Node.js and TypeScript
Translate design prototypes into high-quality
scalable frontend code
Ensure seamless integration of frontend components with backend systems
Develop and maintain real-time performance monitoring and logging solutions
Deliver end-to-end partner solutions that meet reliability
and usability standards
Leverage AI coding agents and modern developer tooling to accelerate delivery
and raise the team's engineering velocity
How You'll Work.
Team & Collaboration
Collaborate closely with UX/UI designers; Collaborate with other engineering teams, QA, and Product Managers; working with partner-facing and cross-functional teams
Communication Scope
written and verbal communication
Process & Methodology
take full ownership of projects from design through deployment, maintenance, and iteration
Full 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: NinjaTrader is building NT Connect — our API-based brok
Applying for this Sr. Software Engineer II, Fullstack - NT Connect role?
Most applicants get filtered before a human reads their resume. See if yours makes the cut.
How to Apply on Greenhouse
- Create a Greenhouse profile before applying — it saves time across multiple applications.
- Upload your resume as a PDF; the parser handles it better than Word.
- Answer all knockout questions carefully — wrong answers auto-reject before a human sees you.
- Enable email notifications to track application status in real time.
ANONYMOUS · UNFILTERED
What do employees actually say about NinjaTrader?
Real rants from real employees. Read before you apply.