Sr. Software Engineer II, Fullstack - NT Connect

Responsibilities

• 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
• Design and implement scalable, efficient backend services and APIs using Node.js 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 NinjaTrader's 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 team's engineering velocity

Requirements

• Bachelor's or Master's 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 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
• 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
• 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

Nice-to-Haves

• 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 & Benefits

• Salary range: $140,000 - $190,000 USD + 10% annual target bonus
• 401k with 3.5% company match
• 18 days PTO per year + 7 paid holidays + 5 conditional holidays
• 1 Service Day annually
• Paid Parental Bonding Leave
• Health, Vision, Dental Coverage
• Life and Disability Insurance covered 100% by company