# Senior Platform Engineer, Workday Extend & Integrations

**Company:** [Lyft](https://hotfix.jobs/companies/lyft)
**Location:** San Francisco, CA
**Role:** Other
**Salary:** $148k – $185k/yr
**Experience:** 7+ years
**Skills:** Workday, Workday Studio, Workday Extend, Workday Prism, Core Connectors, Eib, Xslt, Xpath, REST APIs, Soap Apis, Llm Integration, Mcp Servers, Workday Reports, Calculated Fields, Workato
**Posted:** 2026-07-14

> Senior Platform Engineer owning design, development, and delivery of Workday integrations, custom Extend applications, Prism Analytics, and AI-powered automations for Lyft's People Technology team. Requires 5+ years Workday integration experience plus hands-on AI/LLM implementation.

## Job Description

## Responsibilities
- Design, build, test, and maintain Workday integrations across all integration types: Core Connectors, EIB (Enterprise Interface Builder), and Workday Studio
- Own the full integration lifecycle from requirements gathering through production support and ongoing maintenance
- Architect and develop custom applications using Workday Extend
- Build and maintain Workday Prism Analytics pipelines for data transformation, enrichment, and reporting enablement
- Identify and build AI-powered automations that reduce manual HR and People Ops workflows
- Develop and maintain MCP (Model Context Protocol) servers that expose Workday and other people systems data and actions securely to AI agents
- Develop Workday reports (Advanced, BIRT) and calculated fields to support complex business logic
- Build and support integrations with benefits carriers and PECI integrations
- Conduct design and code reviews, mentor junior engineers, and drive integration best practices
- Document technical designs, data mappings, integration specifications, and runbooks
- Manage work items and track progress using Jira; maintain thorough documentation in Confluence or equivalent systems
- Stay current with Workday releases and evaluate new features for adoption
- Serve as the technical owner for various People Technology systems, including Workday, Qualtrics, Docebo, Udemy, and Greenhouse — accountable for their stability, configuration, integrations, and roadmap
- Support the broader People Technology ecosystem by troubleshooting issues, managing vendor relationships, and partnering with HR stakeholders across all platforms

## Requirements
- 5+ years of hands-on Workday integration experience across Core Connectors, EIB (inbound and outbound), and Workday Studio
- 3+ years of experience with payroll and benefit integrations including PECI, payroll interface, benefits carrier and third-party payroll system connections
- 2+ years of proven experience developing and shipping custom applications in Workday Extend, including custom business objects, fields, orchestration, and UI development
- 2+ years of hands-on experience building Workday Prism pipelines including source selection, transformation steps, and publishing datasets
- Proven hands-on experience building AI-powered features, such as integrating LLMs into HR workflows, automating manual processes using AI agents that meaningfully reduce manual work and accelerate People Ops delivery
- Deep proficiency in Workday Studio including XSLT, XPath, document transforms, and complex multi-step orchestrations
- Experience with REST/SOAP APIs and Workday Web Services (WWS)
- Strong command of Workday reports and calculated fields needed for Integrations and Extend
- Ability to produce clear technical documentation including design docs, data mapping specs, runbooks, and integration guides

## Nice-to-Haves
- Experience with Workato integration platform
- Experience with building and maintaining MCP servers to expose people systems data securely to AI agents
- Experience leading or supporting payroll migrations, including data mapping, parallel testing, and cutover coordination
- Workday Integration Certification
- Familiarity with Workday Orchestrate
- Background in HR, Payroll, or Benefits operations
- Solid understanding of the Workday security model including domain security policies, business process policies, and role-based, user-based groups
- Experience working with or integrating Dayforce by Ceridian system
- Experience supporting HR and People Technology workstreams during M&A, including system consolidation and integration of vendors

## Benefits
- Great medical, dental, and vision insurance options with additional programs available when enrolled
- Mental health benefits
- Family building benefits
- Child care and pet benefits
- 401(k) plan with company match to help save for your future
- In addition to 12 observed holidays, salaried team members have discretionary paid time off, hourly team members have 15 days paid time off
- 18 weeks of paid parental leave. Biological, adoptive, and foster parents are all eligible
- Subsidized commuter benefits
- Monthly Lyft credits and complimentary Lyft Pink membership

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