Workday
Senior Software Development Engineer - AI Tools
$190K–$285K
USA, CA, Pleasanton · Flex · Senior · Full-time · Posted Oct 30, 2026
- Experience
- 5+ years of software engineering experience; 3+ years building and operating backend services or platform infrastructure in production.
About the job
Build and operate Workday’s AI platform and developer tools, including LLM infrastructure, agents, integrations, and governance systems.
What you'll do
- Design and build shared AI platform infrastructure, including LLM gateways, MCP registries, and APIs.
- Develop AI agents and automation for developer workflows, and evaluate AI model providers for cost, safety, and performance.
- Build observability and governance tooling, operationalize AI policy, and lead cross-team technical design.
What they ask for
- 5+ years of software engineering experience.
- 3+ years building and operating backend services or platform infrastructure in production.
- Proficiency in Python and/or TypeScript.
- Hands-on experience with LLM APIs and knowledge of prompt engineering, evaluation pipelines, model tradeoffs, AI security, and responsible AI practices.
Nice to have
- Production experience building AI agents and MCP servers, Claude skills, or similar tool-use integrations.
- Experience with REST APIs, Kubernetes, Docker, cloud deployments, workflow orchestration, infrastructure-as-code, enterprise security, or observability tooling.
Pay
$190,100 USD - $285,100 USD (base salary); $151,200 - $226,800 CAD (base salary)
Tools
Python, TypeScript, OpenAI, Anthropic, ReAct, Kubernetes, Docker, MCP
AI focus
Build AI platform infrastructure, agents, and developer workflow automation; evaluate and integrate models; implement AI safety, governance, observability, and policy guardrails.
Model-written summary · the original posting is authoritative