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 handoffs Deterministic case progression across systems Reliability, Observability & Operations Build integrations to production reliability standards, including: Structured logging with correlation IDs Metrics for throughput, latency, backlog depth, and error rates Alerting tied to SLAs and operational thresholds Define and track integration SLAs, failure rates and recovery times and data consistency indicators. Produce operational runbooks covering incident response, replay and recovery as well as root-cause analysis Partner with Platform/BTT teams to ensure integrations remain stable, observable, and operable. Security, Privacy & Compliance Implement secure integration patterns using: OAuth 2.0 and token-based authentication Secret management and rotation TLS encryption in transit Enforce role- and field-level access controls for PII and sensitive HR/ER data. Ensure end-to-end auditability, traceable data lineage and compliance with HR, ER, and regulatory data handling requirements Design integrations that are analytics- and AI-ready without over-exposing sensitive data. Technical Leadership & Stakeholder Partnership Act as the technical owner for People platform integrations. Partner with: People Product Managers People Ops & COEs Enterprise Architecture & Integration teams External vendors and implementation partners Review vendor designs and challenge assumptions with data and architecture principles. Communicate complex technical tradeoffs clearly to technical and executive audiences. Maintain technical documentation, diagrams, and long-term integration roadmaps. Required Qualifications Bachelor’s degree in Computer Science, Engineering, or a related field; equivalent experience accepted. 10+ years of experience in integration engineering, platform engineering, or distributed systems. Hands-on experience with: REST APIs, webhooks, and event-driven architectures Workday Studio and/or Workday Integration Cloud Message queues or streaming platforms (Kafka, AWS SQS/SNS, or equivalent) Proven experience operating production integrations at scale (10K+ users). Strong understanding of: Effective-dated data models Partial failures and retries Schema evolution and backward compatibility Experience integrating HR, case management, or enterprise SaaS platforms. Core Competencies Structured Systems Thinking: Ability to design resilient architectures in complex, multi-system environments. Operational Excellence: Relentless focus on reliability, observability, and failure reduction. Results Orientation: Ability to tie technical decisions to measurable business outcomes. Clear Technical Communication: Can explain complex architectures without hand-waving or jargon. Ownership Mindset: Treats integrations as long-lived products, not one-time builds. Desired Skills Experience with ServiceNow integrations. Familiarity with HR domains such as employee lifecycle, benefits, leave, or employee relations. Experience supporting global, multi-region systems. Ability to quantify technical impact (cycle time reduction, error reduction, operational savings). Tools REST APIs, webhooks, Workday Studio, Workday Integration Cloud Middleware & Eventing: MuleSoft, Boomi, Workato, Datadog; Kafka, AWS SQS/SNS, or equivalent Logging, metrics, and alerting platforms [Datadog, SEIM] Jira, Asana, Confluence, ServiceNow AI at Toast At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture. Our Total Rewards Philosophy We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits. How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. Diversity, Equity, and Inclusion is Baked into our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry is one of the most diverse, and we embrace that diversity with authenticity, inclusivity, respect, and humility. By embedding these principles into our culture and design, we create equitable opportunities for all and raise the bar in delivering exceptional experiences. We Thrive Together We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the restaurant community. To learn more about how we work globally and regionally, check out: https://careers.toasttab.com/locations-toast. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com. ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.