Senior Full Stack Software Engineer Job at PayRecs, Cincinnati, OH

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  • PayRecs
  • Cincinnati, OH

Job Description

About PayRecs & the Role 

PayRecs is a B2B payment solution for regional and super-regional banks and their commercial customers, delivering new revenue streams, leaner operations, and a best-in-class user experience. Our mission: International treasury made simple. Unprecedented transparency, simplicity, predictability.

As a critical member of our engineering team, you’ll architect, build, and scale our multi-tenant payments platform end-to-end—driving high availability, security, and performance in a production environment

We're looking for a Senior Software Engineer to join our Engineering team. In this role, you will build innovative payments products that delight both financial institutions and their customers. As an early member of the engineering team, you will help shape the engineering culture of a fast-growing startup.

Role Overview

  • Title: Senior Full Stack Software Engineer
  • Location: St. Louis, MO | Cincinnati, OH | Remote
  • Compensation: Competitive salary + equity + benefits
  • Work Style: Flexible hours, hybrid remote

What You'll Do

  • Design & Build: Develop secure, scalable microservices and front-end features using Node.js, React, and GraphQL.
  • Frameworks & Architecture: Define frameworks and patterns that ensure codebase maintainability, testability, and rapid iteration.
  • Cross-Functional Collaboration: Partner with Product, Design, and QA to translate customer needs into technical solutions, from spec through deployment.
  • Ownership & Mentorship: Lead complex projects, guide junior engineers, and foster a culture of continuous learning and improvement.
  • Performance & Reliability: Identify and resolve bottlenecks, optimize queries, and ensure 99.9% uptime across AWS services (EC2, RDS, S3, Lambda).

What You’ll Bring

  • 5+ years of software engineering experience building large-scale, high-availability systems
  • Strong proficiency in our core stack: TypeScript/JavaScript, Node.js, React, GraphQL (Apollo), and SQL (MySQL)
  • AWS expertise: Hands-on production experience with EC2, RDS, S3, Lambda, CloudFormation/CloudWatch
  • API Design: Proven track record designing and consuming RESTful and GraphQL APIs; third-party integrations
  • Quality & Testing: Skilled with Jest/Mocha, CI/CD pipelines, and automated end-to-end tests
  • Communication & Collaboration: Excellent written and verbal skills; ability to work closely across disciplines

Nice to Haves

  • Banking or fintech industry experience
  • Containerization & orchestration (Docker, Kubernetes)
  • Security best practices and compliance (SSAE, SOC2)
  • Experience with payment rails (ACH, SWIFT, ISO 20022)
  • Front-end testing frameworks (Playwright)

Why You’ll Love Working Here

  • Impact & Ownership: Your work powers real-world cross-border payments used by hundreds of banks and thousands of customers.
  • Growth & Autonomy: Thrive in a collaborative, startup environment where your ideas shape our roadmap and culture.
  • Culture of Simplicity: Join a team that values transparency, streamlined processes, and a focus on outcomes over bureaucracy.

How to Apply 

Ready to make a big impact on the future of global payments? Submit your resume and a brief cover letter via Wellfound. We review applications on a rolling basis and will follow up promptly with next steps.

Bring your expertise, passion, and curiosity—and help us redefine international treasury with PayRecs. We can’t wait to meet you!

Job Tags

Remote job, Flexible hours,

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