Platform Engineer (Core Services)

• As an Platform Engineer at OnePay, you will build the core platform services and developer frameworks that power large-scale, distributed systems and enable the next generation of intelligent, agent-driven applications
• Design and operate platform-oriented core services that support high-scale distributed systems across OnePay’s product ecosystem
• Architect, build, and manage Kafka-based event streaming systems that power real-time data flows and mission-critical financial workflows
• Develop internal developer tooling and shared infrastructure that improve velocity, reliability, and observability across engineering teams
• Build and evolve frameworks that support the construction and orchestration of agentic applications, enabling intelligent, automated workflows across products
• Partner closely with engineering, data, and AI teams to solve complex distributed computing challenges in a secure, cloud-native AWS environment
• We use Node and TypeScript on the server, leveraging the NestJS framework within a microservice-oriented architecture running on Kubernetes and AWS. On the client side, we build and ship product features for iOS, Android, and web platforms using React Native. While you don’t need experience with our exact stack, familiarity with modern software engineering practices will help you ramp up quickly

Benefits

• Competitive health benefits: Medical, dental, and vision plans, pluss wellness perks.
• Flexible time off: Rest, recharge, repeat.
• Paid employee leave: Sick, personal, caregiver, bereavement, ans parental.
• 401k plan: With employer match.
• Monthly work-from-home stipend: To cover those home office expenses.
• Remote-first culture: Work anywhere in the US.

• Production experience in AWS cloud environments and building cloud-native infrastructure
• 7+ years of experience in software engineering within fintech, cloud infrastructure, or large-scale distributed systems environments
• Drive and proactivity - everyone here is a builder and executor
• Strong hands-on experience designing, operating, and scaling Kafka-based event-driven architectures
• Deep expertise in distributed systems, asynchronous processing, and high-availability platform services
• Experience building developer platforms, internal tooling, or frameworks that enable other engineers to move faster

• Initial Interview with Talent Partner
• Technical or Hiring Manager Interview
• Team Interview
• Executive Interview
• Offer!