Topstep · 5 hours ago
Senior Software Engineer (.NET)
United States
Full-time
Remote
Senior Level
$175K/yr - $210K/yr
5+ years expTopstep is looking for a Senior .NET Engineer to help shape and scale TopstepX, their core trading platform. The role involves designing, building, and operating backend systems for trading and market data, with a focus on performance and reliability.
ConsultingEducationFinancial ServicesStock ExchangesTrading Platform
No H1B
Responsibilities
Partner with the technical lead and architect to lead the implementation of Trading Platform projects
Deliver backend features end‑to‑end in C#/.NET, from design through production, with accountability for performance and availability
Contribute to shared patterns for .NET service design, API contracts, and performance practices
Partner with product/design to translate partner and trader needs into maintainable technical solutions
Build and operate cloud‑native services with a focus on safe deployments and operational simplicity
Improve developer experience, system performance, or deployment reliability through targeted technical initiatives
Mentor engineers on best practices, production ownership, and maintainable service design
Embed testing, monitoring, and operational thinking into feature delivery
Ensure automated test coverage across unit and integration layers; add end‑to‑end where it delivers a strong signal
Qualification
Required
5+ years building and operating production backend systems with user‑facing APIs; demonstrated impact on system scalability or reliability
Strong .NET (ASP.NET, DI, async/await, performance basics) experience shipping production services
Solid database fundamentals with PostgreSQL or SQL Server; schema design, migrations, and query optimization
Experience designing service boundaries, API versioning, and event‑driven patterns in a microservices or modular architecture
Production ownership mindset: metrics, logging, tracing, on‑call participation, and debugging in live systems
Experience with real‑time or async messaging (Redis, NATS, Kafka, etc.) OR real‑time comms (SignalR/WebSockets)
Practical testing strategies across unit and integration boundaries
Clear technical communication; able to explain trade‑offs and collaborate with product/engineering partners
Comfortable balancing long‑term architecture with near‑term business needs
Preferred
Kubernetes experience (EKS or equivalent), Helm, or GitOps (ArgoCD) tooling
Distributed tracing and performance tuning in multi‑service systems
Incident leadership (RCA, remediation follow‑ups)
Previous work in compliance‑constrained environments
General knowledge of financial markets and futures trading
Benefits
Seven Company-paid Holidays and generous Family Leave.
Paid time off is front-loaded.
Competitive 401(k) matching, health, dental, and vision insurance is offered for full time employees.
Vacations are encouraged with a bonus for taking 5 consecutive days.
Employee referrals are bonused.
Topstep offers a food and groceries budget and contributes towards health and wellness.
Company
Topstep
Topstep is a financial organization that enables resource traders to develop and learn in the trading industry.
51-200 employees
Funding
Current Stage
Growth StageLeadership Team
Michael Patak
Founder & CEO
Recent News
2026-01-13
2026-01-12
Company data provided by crunchbase