Sr. Platform Engineer (Infra Pod)

About the role

Pair Team is building a new kind of healthcare system across Medicaid, Medicare, and public assistance programs. This role involves building the infrastructure and shared engineering capabilities that will enable Pair Team to scale.

Responsibilities

• Own the shared platform layer across the systems we operate, including our Patient Care Application, AWS, Vendor Integrations, Postgres, Snowflake, Github, CI/CD, and other critical systems.
• Establish reusable patterns and conventions so engineers can interact with unfamiliar infrastructure consistently and confidently.
• Design and improve cloud infrastructure with a focus on scalability, reliability, security, and developer experience.
• Build core application services in Ruby on Rails, including foundational capabilities around authorization/RBAC, jobs and queues, deployments, and integrations.
• Own foundational infrastructure and services that sit beneath our product teams, including platform, IAM, HIE, EMR, and integration layers.
• Improve developer experience and engineering velocity by identifying infrastructure bottlenecks and turning manual processes into reliable, self-service workflows.
• Build for scale, ensuring our platform can support significant growth in engineering teams, products, integrations, and infrastructure without creating operational bottlenecks.
• Partner closely with product and engineering teams to understand their needs and build platform capabilities that make their work easier and faster.
• Set technical standards and architectural conventions that other engineers and teams can build upon.
• Operate production infrastructure, participating in troubleshooting and improving the reliability and resilience of critical systems.

Requirements

• 5+ years of software engineering experience as a high-performing individual contributor, building and operating production backend systems.
• Deep expertise in Ruby on Rails with strong understanding of both application and data layers and hands-on experience building and maintaining core backend services.
• Strong relational database skills, including data modeling and query optimization: reading query plans, resolving slow queries and N+1s, and getting indexing right.
• Experience building and operating platform-level capabilities such as authentication/RBAC, jobs and queues, CI/CD, deployments, integrations, and other shared services that enable engineering teams to move independently.
• AWS and Terraform experience are a plus, but not required.
• Proven experience tackling the hard parts of production engineering, such as major Rails upgrades, significant database migrations, zero-downtime schema changes, large-scale data backfills, dependency upgrades, and security remediation.
• A track record of keeping a production codebase current on its dependency and package upgrades, treating that maintenance as steady, ongoing work.
• Strong systems thinking and technical judgment, with the ability to establish reusable patterns, conventions, and abstractions that make complex systems easier for other engineers to understand and operate.
• Builder mindset with a bias toward execution, ownership, and pragmatic problem-solving.
• Strong collaboration skills, comfortable partnering across engineering, product, and operations.