Senior Fullstack Engineer (Payments)

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EngineeringOtherFullstack Developer

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Quick Summary

Overview

Summary: As a Senior Full Stack Engineer at Topstep, you’ll play a key role in building the distributed systems that power our trader experience.

Technical Tools

EngineeringOtherFullstack Developer

Responsibilities

~1 min read

→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.

Requirements

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5+ years of experience building and operating production-grade systems with user-facing APIs, 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).
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.
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.

What We Offer

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✓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.

✓7 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.

$157,000 - $193,000 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.

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!