Platform Engineer, Builder Experience: Scale Core Services

One; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

OnePay is seeking a Platform Engineer on the Builder Experience Team to build the core platform services and developer frameworks that power large-scale, distributed systems.

You will design, implement, and operate high-scale platform services, develop internal tooling, and evolve frameworks that enable agentic applications and automated workflows across products. This role emphasizes cloud-native infra, CI/CD, and observability in a fast-moving fintech environment.

Qualifications

• 2–9 years of software engineering experience
• Experience building developer platforms or tooling
• Strong knowledge of distributed systems and cloud-native infra

Responsibilities

• Design and operate platform-oriented core services across OnePay’s product ecosystem
• Develop internal tooling and shared infrastructure to improve velocity, reliability, and observability
• Build and evolve frameworks that support agentic applications and automated workflows
• Enhance CI/CD pipelines, automation, and developer workflows to accelerate deployments

Skills

Distributed systems

Internal tooling

Cloud infrastructure

CI/CD pipelines

Job description

OnePay is seeking a Platform Engineer on the Builder Experience Team to build the core platform services and developer frameworks that power large-scale, distributed systems.

You will design, implement, and operate high-scale platform services, develop internal tooling, and evolve frameworks that enable agentic applications and automated workflows across products. This role emphasizes cloud-native infra, CI/CD, and observability in a fast-moving fintech environment.