Principal API Architect, Product Engineering – Agent‑Ready APIs

Requirements

  • 12+ years of experience building large-scale, mission-critical backend systems and APIs, with cross-team or organization-wide API/platform architecture responsibility
  • 7+ years of hands-on software engineering experience in object-oriented modeling and software design concepts including domain modeling, abstraction, encapsulation, extensibility, and maintainable service design
  • 5+ years of experience designing API endpoints that clearly, consistently, securely, and scalably expose product functionality, with a proven track record of setting and driving technical standards
  • Deep hands-on experience with object-oriented modeling and software design using Java, TypeScript, or Python to build REST, SOAP, JSON, XML, and Swagger/OpenAPI web services and APIs
  • Bachelor's degree in Computer Science, Engineering, or equivalent practical experience

Nice to Haves

  • Experience leveraging AI-assisted code generation and review tools (e.g., Cursor, Claude Code, GitHub Copilot)
  • Strong expertise in distributed systems and cloud architectures, including high-throughput, low-latency services, horizontal scaling, and fault-tolerant design
  • Extensive experience with edge and gateway patterns such as routing, auth, throttling, rate limiting, transformation, and multi-tenant concerns
  • Demonstrated leadership in API governance including standards definition, contract review, documentation, and lifecycle management
  • Experience designing or evolving API observability (metrics, tracing, logging) and using data to define and monitor SLOs
  • Familiarity with agentic AI use cases and integrating large language models and agents with enterprise APIs
  • Experience with data platforms and analytical stores like Data Cloud, and designing APIs that expose data safely and efficiently
  • Excellent communication skills and ability to influence across engineering and business stakeholders
  • Passion for mentoring staff-level engineers and building a strong API culture
  • Growth mindset and adaptability to evolving operating models

What You’ll Be Doing

  • Define and evolve API architecture, standards, and review processes across Product Engineering
  • Partner with product and platform leaders to shape operating models and API prioritization/business intake paths
  • Assist Product Engineering teams with product design, domain modeling, service boundaries, and API endpoints supporting end-to-end product functionality
  • Ensure APIs serve as durable product contracts encapsulating clear product capabilities, domain concepts, and customer use cases
  • Manage API architecture and governance models spanning REST, GraphQL, SOAP, and emerging integration models
  • Translate product requirements and workflows into scalable backend services and structured API contracts
  • Establish and maintain API standards including OpenAPI guidelines, resource modeling, authentication/authorization, error handling, versioning, and deprecation policies
  • Collaborate with API champions to shape roadmaps, identify gaps, and drive convergence on shared patterns
  • Define reference architectures and patterns for agent-ready APIs, data-centric APIs, latency, and observability standards
  • Lead cross-team API design reviews and resolve high-impact design decisions
  • Work closely with platform partners to align capabilities and represent Product Engineering needs
  • Define and help run transparent intake/prioritization for API investments
  • Evaluate tools and platforms for API design, testing, and operations
  • Mentor senior engineers and managers while building communities of practice
  • Communicate API vision and status to senior stakeholders influencing product and resourcing decisions

Perks and Benefits

  • Competitive base pay range (€104,000 EUR - €156,000 EUR for Ireland)
  • Eligible for Workday Bonus Plan, role-specific commission/bonus, and annual stock grants
  • Flexible work approach combining in-person and remote time (at least 50% in-office or customer-facing per quarter)
  • Supportive and inclusive culture rooted in integrity, empathy, and enthusiasm
  • Focus on career growth with trust, tools, skill development, and long-term company support
  • Commitment to reasonable accommodations and equal opportunity employment
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