Software Engineer

Topstep is seeking a Mid-Level Software Engineer to contribute to critical components of our trading platform, including systems that power real-time trading, market data delivery, and brokerage integrations.

About the role

You’ll work primarily in a modern .NET stack, building cloud-native services that handle high-throughput workloads, and occasionally work across the stack in our React/TypeScript frontend. This role offers real ownership of production systems while continuing to grow your skills in distributed systems and production operations. You’ll own features from design through deployment with support from senior engineers, partner with product on hard problems, and help raise the engineering bar at Topstep.

Responsibilities

• Build and ship features for services and APIs that power core trading platform capabilities.
• Own your features from design through deployment, with support from senior engineers.
• Collaborate with product and design to translate requirements into maintainable technical solutions.
• Learn and apply the architectural patterns and practices used across the engineering organization.
• Write clean, well-tested code with a focus on reliability and performance.
• Participate in on-call rotations and respond to incidents, with support from senior team members.
• Help instrument your services with metrics and logging, and grow your skills in observability.
• Occasionally work across the stack, contributing to the React/TypeScript frontend as features require.
• Participate in code reviews, giving and receiving feedback to improve code quality.
• Help maintain and improve existing systems through bug fixes, refactoring, and performance improvements.
• Contribute to team documentation and knowledge sharing.

Requirements

• 3–4 years of software engineering experience building and shipping production features.
• Solid proficiency in C# and .NET, with experience building production services.
• Understanding of RESTful API design and service integration patterns.
• Working knowledge of databases including SQL, basic schema design, and query fundamentals.
• Experience writing automated tests and an understanding of testing best practices.
• Ability to debug issues in production systems with guidance.
• Strong problem-solving skills and drive to take on increasing scope and responsibility.
• Good communication skills, with the ability to collaborate effectively across engineering and product.
• Comfort working in agile environments with iterative development and changing requirements.

Preferred Qualifications

• Experience with React, TypeScript, or other modern frontend frameworks.
• Exposure to distributed systems, microservices, or event-driven architectures (Redis, NATS, Kafka, SignalR/WebSockets).
• Familiarity with PostgreSQL or SQL Server in production environments.
• Understanding of observability tools (metrics, logging, tracing).
• Familiarity with container technologies (Docker) or cloud platforms (AWS).
• Prior on-call or incident-response experience.
• Previous work in financial services, fintech, or other compliance-regulated environments.
• Understanding of trading systems, market data, or brokerage operations.

Benefits

• Seven company-paid holidays and generous family leave.
• Paid time off is front-loaded.
• Competitive 401(k) matching, health, dental, and vision insurance for full-time employees.
• Vacation bonus for taking 5 consecutive days off.
• Employee referral bonuses.
• Food and groceries budget, plus contributions toward health and wellness.

Pay

New hire base salary range: $125,000 – $160,000 annually. This position is also eligible for a performance-based bonus as provided by the plan terms and governing documents. The compensation offered will take into account internal compensation structure and may vary depending on the candidate’s geographic region, job-related knowledge, skills, and experience.

Company Culture

Topstep offers an engaging working environment ranging from fully remote to hybrid. We foster a culture of collaboration with cameras on during meetings and a robust Slack environment for communication.