Sr. Software Engineer (Backend & Platform, Payments Infrastructure)

About the Role:

We’re looking for a talented lead or senior software engineer to join our partner company's team, focusing on backend services and platform reliability—specifically around payments infrastructure.

What You’ll Do:

Design and build backend services that power our payments infrastructure
Work with Node.js/React, TypeScript, Ruby on Rails, and Postgres
Develop and maintain REST APIs that handle secure transactions and integrations with third-party payment providers
Collaborate with the team to improve platform reliability, scalability, and security for payment processing
Support infrastructure improvements and deployment pipelines
Contribute to architecture and implementation decisions for our payment systems
Troubleshoot and optimize payment flows to ensure high performance and user experience

What We’re Looking For:

Proven experience working on payment systems, SaaS applications, or transaction-heavy applications
Proficiency with backend frameworks like Node.js/TypeScript and/or Ruby on Rails
Experience with relational databases (Postgres preferred)
Strong understanding of REST APIs and secure data handling practices
Interest in platform/infrastructure work, including deployments and cloud services
A collaborative mindset and eagerness to learn and grow

Nice to Have:

Experience with React.js or similar frontend frameworks
Familiarity with containerization (Docker/Kubernetes)
Cloud experience (AWS, GCP, or Azure)

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