Senior Software Engineer, TRM

Topstep provides products and systems that support funded traders and internal business teams. The Senior Software Engineer will build and operate full-stack, cloud-native applications for trader experiences, account flows, payments, payouts, and internal tooling, while owning technical design, reliability, scalability, and production support.

Responsibilities:

• Design, build, and operate full stack features end to end, from technical design through deployment and production support, with an emphasis on reliability, safe deployments, and operational simplicity
• Partner with Product and Design during discovery to shape scope, surface technical trade-offs early, and provide credible estimates
• Write technical designs for significant work and guide architecture decisions within your area, in partnership with your Engineering Manager and fellow senior engineers
• Build automated testing, observability, and operational ownership into every stage of delivery
• Raise the team's engineering bar through thoughtful code review, mentoring, and contributing to shared standards and patterns
• Proactively identify and resolve issues across the stack, keeping our systems stable, performant, and ready to grow
• Participate in the on-call rotation and incident follow-through, turning production issues into lasting fixes
• Use AI-assisted development tools effectively and responsibly, within Topstep's standards for AI-built software

Requirements:

• 5+ years of experience building and operating production-grade systems with user-facing APIs, with demonstrated impact on scalability and reliability
• Strong full stack foundation: backend development in TypeScript and Node.js with solid API design (REST, GraphQL), and modern frontend development in React and Next.js
• Experience designing and operating distributed systems, including event-driven architectures, message queues, eventual consistency, and concurrency and race-condition handling, with a strong focus on performance, security, and maintainability
• Strong database fundamentals with PostgreSQL or SQL Server, including schema design, migrations, indexing, and query optimization
• A production mindset and bias toward action, embracing metrics, logging, tracing, on-call participation, and end-to-end ownership of delivery
• Excellent communication skills, with the ability to explain complex technical concepts to a range of audiences and work well with Product, Design, and QA
• Background in financial technology or highly regulated spaces where precision, traceability, and regulatory standards drive engineering decisions
• Practical expertise with payment gateways, billing infrastructures, or authentication and user identity services
• Hands-on familiarity with AWS services, container orchestration (Docker, Kubernetes), and modern deployment pipelines using Argo CD or GitHub Actions
• Proven capability leveraging AI developer tooling effectively while upholding rigorous standards for code health and maintainability
• Track record of delivering high-scale, end-user applications with a sharp focus on intuitive product design