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OneApp

Platform Engineer, Builder Experience

United States (Remote) (Remote)$140k–$190kfulltimemidAdded today

About this role

OnePay seeks a Platform Engineer to design and operate core platform services that power distributed systems and enable agent-driven applications. You'll build internal developer tooling, enhance CI/CD pipelines, and create frameworks that help engineering teams move faster across a fintech platform backed by Walmart.

What you'll do

  • Design and operate platform services supporting high-scale distributed systems across OnePay's ecosystem
  • Develop internal developer tooling and shared infrastructure to improve velocity and reliability
  • Build frameworks for constructing and orchestrating agentic applications with intelligent workflows
  • Enhance CI/CD pipelines, automation, and developer workflows to increase deployment speed and confidence
  • Drive platform reliability and observability improvements across engineering teams
  • Collaborate with cross-functional teams to enable faster product development

What they're looking for

  • Distributed systems design and operation
  • AWS cloud infrastructure and cloud-native development
  • CI/CD pipeline design and implementation
  • Asynchronous processing and high-availability systems
  • Developer platform and internal tooling development
  • Agentic application frameworks and orchestration
  • Fintech or large-scale systems experience
  • Infrastructure automation and DevOps practices
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OneApp

OneApp builds a consumer fintech platform offering financial services like cash advances and banking transactions, backed by Walmart. The company is hiring software engineers, frontend engineers, mobile engineers, and support engineers to develop scalable, mobile-first financial products and customer-facing applications.

View all jobs at OneApp

Likely interview questions

  • Describe a distributed system you designed—what were the key challenges in achieving high availability and how did you address them?
  • Tell us about internal developer tooling or platform work you've built. How did you measure its impact on team velocity?
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