Senior Software Engineer, Internal Developer Platform - PA143

ZoomInfo Technologies LLC•Toronto, ON

15h•$161,360 - $242,040

About The Position

ZoomInfo is where careers accelerate. We move fast, think boldly, and empower you to do the best work of your life. You’ll be surrounded by teammates who care deeply, challenge each other, and celebrate wins. With tools that amplify your impact and a culture that backs your ambition, you won’t just contribute. You’ll make things happen–fast.

Requirements

Advanced proficiency in TypeScript and Node.js with strong software architecture fundamentals
Hands-on experience designing and shipping REST and GraphQL APIs in production
Hands-on experience building or extending Backstage — plugin development, catalog model, software templates, and TechDocs
Strong proficiency with PostgreSQL and Redis; MongoDB familiarity is a plus
Experience with Kubernetes (GKE) and GCP — deployment, scaling, and production troubleshooting
Hands-on experience with ArgoCD, Helm, and GitHub Actions
Working proficiency with Terraform for cloud infrastructure management
Practical experience integrating LLMs into production services; familiarity with MCP or Agentic AI patterns
Bachelor's degree in Computer Science or related field
5+ years in Software Engineering with experience building Internal Developer Platforms or Platform/Infrastructure tooling

Responsibilities

Build and own services across our 20+ microservice Backstage platform using TypeScript and Node.js, exposing REST and GraphQL APIs consumed by other services and the Backstage frontend.
Own the Backstage catalog and ingestion pipeline that syncs entities from Helm, ArgoCD, GCP, and GitHub — nightly and on-demand.
Extend the platform with engineering maturity scoring, change management workflows, AI-generated reports, and test management tooling.
Develop LLM-powered services and MCP servers that make catalog and engineering data accessible to humans and AI agents.
Own service reliability on GKE via ArgoCD GitOps, PostgreSQL and Redis datastores, and Datadog monitoring — including incident response and runbook ownership.
Partner with engineering, governance, architecture, and infrastructure teams to translate needs into catalog models, golden paths, and self-service tooling.