Senior Fullstack Engineer (Payments)

Posted 13 Hours Ago
Easy Apply
Hiring Remotely in United States
Remote
157K-193K Annually
Senior level
Fintech
At Topstep, we are passionately committed to helping our traders find true and replicable success.
The Role
As a Senior Full Stack Engineer, you'll design and build cloud-native applications for the payments platform, ensuring reliability and scalability. Collaborate with engineering teams to deliver solutions and maintain production systems.
Summary Generated by Built In

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. You’ll help define and evolve the architecture that serves as the backbone of our payments and purchasing platform, ensuring reliability, scalability, and clarity as our ecosystem grows.

You’ll work primarily in TypeScript and React, building cloud-native applications that support high-throughput, low-latency workloads. In addition to shipping features, you’ll influence coding standards and engineering patterns adopted across teams, and help ensure the platform scales safely as usage and complexity increase.

This role is ideal for someone who wants to contribute to key systems in our ecosystem, delivering elegant solutions that scale with intention. Join us and help shape what engineering 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

  • 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.

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. 
  • 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. 

New Hire Base Salary Range 

  • $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.

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!

Top Skills

GraphQL
Next.Js
Postgres
React
Rest
SQL Server
Typescript
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The Company
HQ: Chicago, IL
45 Employees
Year Founded: 2012

What We Do

Trading is more than an activity, more than a passion, more than a calling. It’s a lifestyle, a set of rules, and a mentality towards every aspect of your day. We’ve seen what happens to people who don’t buy into the rules or the mentality—they fail, time and time again. At Topstep, we are passionately committed to helping our customers find true and replicable success. Our way is not for the faint of heart, but it has been proven to turn people who trade, into Traders. Topstep is the premier funding opportunity for retail futures and forex traders. Our goal is to provide a safe environment so that traders can professionalize their passion and safely engage and profit in the financial markets. If you follow the rules and pass our simulated trading evaluation, called the Trading Combine®, you will be able to trade with our capital. Guaranteed.

Why Work With Us

We’re a bootstrapped B2C company with thousands of customers and a killer team. Every project that each team member works on directly impacts the company and our users, so empowerment and accountability are key. We value autonomy, creativity, and supporting one another, and it helps that we have fun together too!

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