Principal Engineer API Platform

Principal Engineer Developer Platform

We're building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you'll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time.

About the Role

At CVS Health, we are building a developer platform that sets the standard for how hundreds of engineers across Retail, Pharmacy, Health Solutions, and Aetna design, build, secure, and publish APIs. Our platform spans an internal and external developer portal, an API catalog that drives discovery and prevents duplication across the enterprise, and the systems responsible for delivering APIs, agent-to-agent integrations, and MCP servers to both cloud and on-premises gateways.

As a Principal Engineer on this platform, you will own the technical direction and architecture across several teams building these capabilities. This is a senior, cross-cutting role with significant organizational influence.

You will establish the engineering practices that teams build on, define how APIs are designed and governed at scale, and lead the effort to embed AI-powered capabilities into the developer experience itself, from intelligent coding assistance that guides engineers toward compliant API patterns to MCP servers that make the enterprise API catalog available as a live, queryable context for AI-enabled workflows.

This is a rare opportunity to shape the developer experience for a Fortune 6 company from the ground up, working with a high level of autonomy and leaving a long-term imprint on how CVS engineers build and deliver software.

• You are a recognized authority on API design, able to define and enforce standards for REST, GraphQL, event-driven, and MCP-based interfaces across the enterprise
• You understand API lifecycle management from specification and contract-first design through versioning, deprecation, and eventual retirement
• You can architect systems for delivering APIs and integrations to multi-environment targets, including public cloud (GCP, AWS, Azure) and on-premises gateways
• You have deep experience with API gateway technologies, service mesh, and the infrastructure concerns that underpin reliable, high-throughput API delivery
• You understand what it takes to build and operate an API catalog at enterprise scale, including taxonomy, discoverability, and ownership models

• You approach API security as a first-class architectural concern, with hands-on expertise in OAuth 2.0, OIDC, mTLS, scopes, rate limiting, and threat modeling for APIs
• You can define and operationalize secure-by-default patterns that developers on the platform pick up naturally, without having to become security experts themselves
• You understand the regulatory and compliance landscape relevant to healthcare APIs (HIPAA, FHIR, CMS interoperability rules) and can translate those requirements into platform guardrails
• You are comfortable working directly with security architecture teams to validate designs and respond to findings

• You will lead the design and delivery of AI capabilities embedded into the developer platform, including AI-powered coding skills and assistants that guide engineers toward CVS-compliant API patterns at the point of development
• You will architect and build MCP servers that expose the enterprise API catalog as a queryable, real-time context, enabling AI agents and developer tools to surface relevant APIs, usage examples, ownership information, and compliance status during development workflows.
• You understand how to prompt, instrument, and evaluate large language models in production contexts, and you know when AI is the right tool and when it is not
• You will define the strategy for how AI tooling integrates with the portal, catalog, and gateway delivery pipeline, and you will work with engineering teams across CVS to drive…