Principal Software Engineer

AT&T

1d•Onsite

About The Position

This position requires office presence of a minimum of 5 days per week and is only located in Plano, TX. No relocation is offered. AT&T will not hire any applicants for this position who require employer sponsorship now or in the future. Join AT&T and help shape the future of communications and technology that connect the world. We value innovators who seek to explore the unknown and challenge the status quo. Bring your bold ideas and fearless spirit to redefine connectivity and transform how people share stories and experiences. At AT&T, you won’t just imagine the future—you’ll build it. What you’ll do: We’re seeking a Principal Software Engineer with proven leadership in architecting and delivering advanced solution on the Workday platform, emphasizing exceptional development skills with a focus on Workday Extend applications and Workday Orchestrator integrations. The ideal candidate will drive the technical vision for scalable, secure, and resilient HR and payroll technology capabilities that serve enterprise-wide needs. In this role, you’ll partner with Product, HRIS, Security, and Integration teams to craft modern architectures, mentor senior engineers, and set engineering standards for the Workday ecosystem.

Requirements

7+ years in software engineering with 5+ years building on Workday (HR/HCM/Payroll) platforms.
Expert with Workday Web Services, REST/SOAP, EIB, RaaS, Workday Studio; strong JSON/XML/XSLT skills.
Solid cloud experience (Azure and/or AWS), containerization fundamentals, and event-driven patterns (e.g., webhooks, pub/sub).
Knowledgeable in Workday Extend building custom apps, components, and UI logic.
Knowledgeable in Workday Orchestrator flows for complex, multi-step integrations.
Proven leadership delivering large-scale, enterprise-grade, secure solutions with CI/CD and automated testing.
Bachelor’s in CS/Engineering or equivalent experience.

Nice To Haves

Experience with Workday Extend, Workday Orchestrator, Prism Analytics, BIRT, Report Designer, BPs, condition rules, and custom objects.
Strong grasp of HR/Payroll processes (HCM Core, Absence, Benefits, Time, Talent, Compensation, US Payroll).
Data privacy & compliance (SOX, GDPR, CCPA), secrets management, certificate lifecycle management.
Excellent communication and stakeholder management; ability to influence at executive and engineering levels

Responsibilities

Architecture & Delivery Lead end-to-end architecture for Workday solutions using Workday Extend and Workday Orchestrator for complex workflows.
Own integration strategy across Workday Web Services (WWS), REST/SOAP APIs, EIB, RaaS, PECI/PICC, and Studio where appropriate.
Advanced expertise in building Workday custom reports, custom objects, calculated fields, and boomerangs to support complex enterprise HR and integration requirements.
Implement Workday-delivered AI-powered HR solutions.
Drive scalable designs for event-driven and API-led integrations; define SLAs/SLOs and non-functional requirements (NFRs).
Establish coding standards, CI/CD pipelines, unit testing, end-to-end testing, and secure SDLC for Workday Extend apps and orchestrations.
Ensure observability (logs/metrics/traces), automated monitoring/alerting, and robust error handling/retries for integrations.
Design with Workday security domains, business process security policies, and segregation of duties (SoD).
Implement data protection, encryption, secrets management, auditability, SOX/PII/PCI controls as applicable.
Expert in Workday file-based integrations, including configuration and operation of Workday Data Router and SFTP for reliable, secure data exchange with external systems.
Translate business capabilities into technical roadmaps; shape backlog with measurable outcomes.
Lead technical discovery, proof-of-concepts, and production rollouts with change management.
Coach senior/staff engineers; conduct design reviews; evolve best practices and reusable patterns.
Influence vendor/product roadmap and represent engineering in cross-functional forums.

Benefits

Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone.