Lead API Architect, Agent‑Ready APIs (Product Engineering)

Workday, Inc.; Dublin; Hybrid; EUR 104,000 - 156,000; Full time

Job summary

Workday, Inc. seeks a Principal-level API Architect in Product Engineering to lead API strategy for agentic, product-centric scenarios.

You will own the API architecture vision, set standards across API design and integration patterns, and partner with engineering and product leaders to realize these plans. Ideal candidates have 12+ years building backend systems and APIs, deep OO modeling experience, and hands-on work with Java/TypeScript/Python to create scalable services and APIs using REST,

Qualifications

• 12+ years building large-scale backend systems and APIs
• 7+ years in software engineering with OO modeling and design
• 5+ years designing API endpoints that expose product functionality at scale

Responsibilities

• Define API architecture, standards and review processes for Product Engineering
• Shape API roadmaps and prioritize API investments across pillars
• Design product capabilities end-to-end including domain models and service boundaries
• Lead cross-team API design reviews and resolve high-impact decisions
• Mentor senior engineers and promote API best practices

Skills

API architecture

REST/GraphQL/SOAP

OO modeling

Java/TypeScript/Python

API governance

Mentoring

Education

Bachelor's in CS/Engineering

Tools

OpenAPI/Swagger

GitHub Copilot

Cursor/AI code tools

Job description

Workday, Inc. seeks a Principal-level API Architect in Product Engineering to lead API strategy for agentic, product-centric scenarios.

You will own the API architecture vision, set standards across API design and integration patterns, and partner with engineering and product leaders to realize these plans. Ideal candidates have 12+ years building backend systems and APIs, deep OO modeling experience, and hands-on work with Java/TypeScript/Python to create scalable services and APIs using REST,