Topstep

Software Engineer

• Lead the mobile MVP effort to establish our React Native application from the ground up, integrating with GraphQL APIs across our trader experience and trading experience platforms
• Set technical direction for mobile architecture, influencing component design, state management, API integration patterns, and navigation structure
• Establish engineering patterns for React Native development including reusable components, custom hooks, TypeScript patterns, and testing strategies that other engineers can adopt
• Own end-to-end mobile features from design through App Store and Play Store releases, ensuring seamless integration with backend services and optimal performance
• Partner with product and design to translate trader needs into mobile experiences that balance user experience with technical constraints and platform capabilities
• Drive mobile quality and performance by embedding testing, monitoring, crash reporting, and performance optimization into every feature you ship
• Embed within feature teams after MVP launch to drive ongoing mobile development, bringing mobile expertise to cross-functional squads
• Mentor engineers on React Native best practices, mobile-specific architectural thinking, and production ownership
• Champion mobile-first thinking across the organization, helping backend and frontend teams understand mobile constraints and opportunities

Staff Mobile Engineer

Full-stack Engineer

• Set technical direction for full-stack architecture across the engineering organization, influencing how we design APIs, structure frontends, and ensure system reliability
• Own end-to-end feature development from Postgres schema design through GraphQL APIs to Next.js UI, ensuring seamless integration and optimal performance
• Establish engineering patterns for GraphQL schema design, React component architecture, state management, and API/UI coupling that other teams can adopt
• Partner with product and design to translate trader needs into technical solutions that balance user experience with system constraints
• Drive architectural improvements during our modernization initiative, helping transition from monolithic systems to event-driven microservices while maintaining feature velocity
• Lead technical initiatives that materially improve developer experience, system performance, or code quality across the organization
• Mentor engineers across teams on full-stack best practices, architectural thinking, and production ownership
• Champion quality and reliability by embedding testing, monitoring, and operational thinking into every feature you ship

Staff Software Engineer

AI Research Scientist

• Find valuable business insights from Topstep’s large and varied proprietary data
• Collaborate with a fast-paced, research-oriented team to build and improve methods for detecting risk and fraud, understanding business dynamics, and simulating various aspects of the program
• Build tools for stakeholders within Topstep that can improve their efficiency and/or their ability to gain insights from Topstep’s data for themselves

Staff Mobile Engineer

Staff Software Engineer

Machine Learning Researcher