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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Software Engineer II, Fullstack - NT Connect - **Company:** NINJATRADER, LLC - **Location:** Chicago, IL, United States (Remote available) - **Experience:** Expert - **Salary:** $140,000.0 - $190,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Algorithmic Trading, Cloud Computing, Software Quality, Databases, Cursor (Graphical User Interface Elements), Node.Js, OAuth, Performance Tuning, Query Optimization, Queueing Systems, Standard Sql, JSON Web Token, Software Engineering, Data Streaming, TypeScript, Management of Software Versions, WebSocket, Google Cloud, Cloud Platform System, GitHub Copilot, ReactJS, Caching, Backend, Event Driven Architecture, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Data Analytics, Performance Monitor, Apache Kafka, Front End Software Development, Api Design, Restful APIs, Terraform, Docker - **Published:** May 21, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=5bae515d66724e0a ## About the Role Do you have experience in UI implementation?, Do you have a Master's degree?, * 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 - 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 ## Description NinjaTrader is building NT Connect - our API-based brokerage integration layer that powers connections with introducing brokers, fintech partners, and third-party platforms. We're 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 you're 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. You'll 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., * 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 ## Related Videos - [Agentic employees in world's most downloaded FinTech app](https://www.wearedevelopers.com/videos/100123-agentic-employees-in-world-s-most-downloaded-fintech-app) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Stop using Node.js like in 2020! What changed and what you can do today with Node.js](https://www.wearedevelopers.com/videos/100011-stop-using-node-js-like-in-2020-what-changed-and-what-you-can-do-today-with-node-js) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Navigating the Future of Junior Developers in Tech](https://www.wearedevelopers.com/videos/1280-navigating-the-future-of-junior-developers-in-tech) - [Delay the AI Overlords: How OAuth and OpenFGA Can Keep Your AI Agents from Going Rogue](https://www.wearedevelopers.com/videos/1637-delay-the-ai-overlords-how-oauth-and-openfga-can-keep-your-ai-agents-from-going-rogue) ## Related Articles - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)