Principal Software Engineer

Deep GraphQL expertise: schema design, resolvers, federation, subscriptions, and performance optimization.

Experience with GraphQL Yoga or Apollo Server (transferable skills).

Strong Node.js and TypeScript skills for API services and developer tooling; Go experience for backend and infrastructure work.

Experience securing customer-facing APIs, OAuth 2.0, JWT, fine-grained authorization, rate limiting.

Familiarity with large-scale data systems; exposure to BigTable, BigQuery, or Solr is a plus.

Experience building developer-facing SDKs or API tooling.

We are seeking an experienced Principal Software Engineer to lead the design and development of ZoomInfo's customer-facing

GraphQL API platform

, built on top of our industry-leading Go-to-Market (GTM) data assets.

You will be a technical anchor for a collaborative engineering team, setting architectural direction for how enterprise customers and partners programmatically access the world's most comprehensive B2B intelligence.

This is a high-impact individual contributor leadership role where your decisions directly shape platform quality, scalability, and customer success.

Architect, design, and own the end-to-end development of ZoomInfo's customer-facing GraphQL APIs, ensuring high availability, low latency, and developer-friendly experiences.

ZoomInfo (NASDAQ: GTM) is the Go-To-Market Intelligence Platform that empowers businesses to grow faster with AI-ready insights, trusted data, and advanced automation. Its solutions provide more than 35,000 companies worldwide with a complete view of their customers, making every seller their best seller.

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