Software Engineer III

Summary Are you a full-stack engineer who thrives on building exceptional user experiences, shipping high-quality apps from scratch, and raising the technical bar for teams around you? As a Software Engineer III at Topstep, you'll play a foundational role in building our Trader Experience platform using React, TypeScript, and GraphQL. You'll be instrumental in embedding within feature teams to drive ongoing web development. This is an opportunity to shape the experience for traders. This role is ideal for someone who brings both deep web development expertise and a product mindset. Join us and help define what mobile excellence looks like at Topstep. Key Responsibilities Design, build, and operate cloud-native applications with an emphasis on reliability, safe deployments, and operational simplicity. Embed automated testing, observability, and operational ownership into every stage of feature delivery. Proactively identify and resolve issues, helping ensure our platform remains stable, performant, and ready to grow. Collaborate with product engineering teams to champion event-driven best practices and deliver scalable, resilient solutions. Required Qualifications and Key Competencies 3 + years of professional experience building production web applications, with demonstrated impact on scalability and reliability. A solid full-stack foundation, with strength in backend API design (TypeScript, GraphQL, REST) and modern frontend development (React, Next.js, TypeScript). Strong database fundamentals, including experience with PostgreSQL or SQL Server - schema design, migrations, indexing, and query optimization. Excellent communication skills, with the ability to distill complex technical concepts for a range of audiences. A production mindset and bias toward action - embracing metrics, logging, tracing, on-call participation, and end-to-end ownership of delivery. Preferred Qualifications Deep expertise in designing and operating scalable, distributed systems, including event-driven architectures, message queues, eventual consistency, and race condition handling, with a strong focus on performance, security, and maintainability. Experience building financial, trading, or fintech mobile applications where real-time data, reliability, and security are critical. Comfort with CI/CD pipelines and infrastructure-as-code tools. Company Culture & Perks Topstep is an engaging working environment that ranges from fully remote to hybrid. We foster a culture of collaboration by keeping cameras on during meetings and maintaining a robust Slack environment for communication. Seven Company-paid Holidays and generous Family Leave. Paid time off is front-loaded. Competitive 401(k) matching, health, dental, and vision insurance are offered for full-time employees. Vacations are encouraged with a bonus for taking 5 consecutive days. Topstep offers a food and groceries budget and contributes towards health and wellness. New Hire Base Salary Range $132,000- $168,000 annually. Bonus: This position is eligible for a performance-based bonus as provided by the plan terms and governing documents. The compensation offered will take into account the internal compensation structure and may vary depending on the candidate's geographic region, job-related knowledge, skills, and experience, among other factors. Equal Opportunity Employer Topstep is an Equal Opportunity Employer. We are committed to fostering an inclusive environment where all employees and applicants are valued. All qualified candidates will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, age, disability, or veteran status, in compliance with applicable federal, state, and local laws. Interested in the role? Apply today with your resume!

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