Integration Engineer, People Products

Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. Job Summary We’re looking for an Integration Engineer to design, configure, and operate the integration layer that powers People Products at scale. This role is responsible for how data, events, and cases flow across our People Places technology ecosystem , ensuring reliability, security, and operational efficiency across high-volume, business-critical workflows. You will lead complex, cross-platform integration initiatives across Unily , Universal Bot (IBM Watson), ServiceNow (ITSM) , Syndio, Better Up, HR Acuity, Unum, Fidelity , and Workday . This role will report into People Products leadership and partner closely with Enterprise Architecture and Platform Engineering teams (BTT). You’ll be part of our People Places organization , whose ambition is to make People Experience a core differentiator, on par with our customer-facing products. The People Products team builds cloud-based, scalable, compliant, and deeply integrated solutions that reduce operational friction, improve employee trust, and enable People teams to scale without linear headcount growth. This role is foundational: success is measured in fewer manual handoffs, lower failure rates, and trusted system-to-system orchestration . In This Role, You Will: Key Responsibilities Integration Engineering Architecture Design and own the end-to-end integration architecture across People Products platforms, supporting 10K+ employees and high-volume transactional workloads. Build API-driven and event-driven integrations that move employee, case, and workflow data across systems with minimal coupling. Define and enforce standards for: Canonical data models and schema evolution API contracts, versioning, and backward compatibility Idempotency, retries, replay, and dead-letter handling Select integration patterns (synchronous vs asynchronous, orchestration vs pub/sub) based on latency targets, volume thresholds, and failure tolerance . Own architecture decisions from design to implementation to production operations . Platform Integration Delivery Build and operate bi-directional integrations across: Unily - Employee entry point for guided journeys, request initiation, and unified status visibility. IBM - AI and analytics integrations supporting employee assistance and operational insights. Okta - Identity lifecycle synchronization for access provisioning and deprovisioning. Syndio - Secure exchange of compensation and pay equity data for compliant execution. BetterUp - Coaching eligibility, enrollment, and participation tied to employee lifecycle events. IAM / SailPoint - Identity governance and access changes driven by hire, job change, and termination events. HR Acuity - Secure ER case signals, escalation indicators, and lifecycle status. ServiceNow ITSM - Case intake, routing, SLAs, ownership, and parent-child structures. Workday - System of record for worker, job, position, and effective-dated events. Unum - Leave initiation, eligibility, and status synchronization. Fidelity - Retirement and financial benefits eligibility and status updates. Implement integrations using: Workday Studio for complex orchestration and transformations Workday Integration Cloud (IC) and delivered APIs where appropriate REST APIs and webhooks for non-Workday platforms Handle effective dating, retroactivity, partial updates, and reconciliation explicitly and safely. Workflow Orchestration Messaging Implement asynchronous workflow orchestration using queues and events rather than synchronous chaining. Use messaging platforms (AWS, Kafka, or equivalent) to: Decouple systems Enable retries and replay Absorb downstream outages without cascading failures Support People workflows including: Tier 0-4 case routing models Cross-COE handof ... (truncated, view full listing at source)