Senior Software Engineer - API & MCP Platform
Core
Building and scaling ZoomInfo's API infrastructure to handle millions of weekly calls, enabling data enrichment, search, and AI-powered integrations via the Model Context Protocol (MCP).
Role type
Senior Software Engineer (API & Platform)
Builds
Scalable RESTful APIs, secure authentication systems, high-performance API gateways, and MCP tools/servers for AI integrations.
Domain
B2B Data Intelligence / API Platform Engineering
Deliverable
production ML models | product features | infrastructure
Required skills
Java (Spring Boot, Spring Security), NestJS, OAuth 2.0/OpenID Connect/JWT, RESTful API design, API gateway management, rate limiting/throttling, distributed systems architecture, MCP tool creation.
Preferred skills
Production MCP tool release experience, AI/LLM integration patterns, cloud platforms (AWS/GCP/Azure), containerization (Docker/Kubernetes), CI/CD pipelines, message queuing (Kafka/RabbitMQ), developer portal building.
Technologies
Java, NestJS, Spring Boot, OAuth 2.0, OpenAPI/Swagger, Docker, Kubernetes, Kafka, RabbitMQ, AWS, GCP, Azure.
Responsibilities
Design and maintain scalable RESTful APIs; architect secure authentication systems; build high-performance API gateways; implement MCP tools and servers; optimize API performance and caching; establish API design standards and versioning; create SDKs and documentation; monitor API usage and performance; mentor team members on API/MCP best practices.
Seniority
Senior, hands-on IC