Human Resource Specialist

MasTec Inc•Pomona, CA

11d•Hybrid

About The Position

We are seeking a detail‑oriented and people‑focused Human Resource Specialist to support HR operations across our West Region. In this role, you will coordinate onboarding, manage employee documentation, support Leaves of Absence, ensure regulatory compliance, and provide daily HR support for both craft and professional employees. If you thrive in a fast‑paced environment and enjoy being a trusted partner to employees and managers, this role is for you. Why Henkels & McCoy: Join a 100-year-old infrastructure leader committed to innovation, safety, and career growth. You’ll tackle complex, high-visibility projects that keep the lights on for millions—while working with a team that values your expertise and empowers your professional development. Company Overview: Henkels & McCoy West works closely with clients from diverse markets to build enduring partnerships throughout the Western United States. Our team of seasoned professionals designs, builds, manages, and maintains critical and sustainable infrastructure for the power, oil & gas pipeline, gas distribution, and communications industries. Building on a 100-year legacy of performance and service to utility, commercial, industrial, and government clients, H&M West brings together extensive knowledge and innovation to deliver infrastructure construction solutions that meet future energy needs today. H&M West is a purpose-driven company. Our core values guide our strategy, performance, and culture. We believe in maintaining an environment where team members can make an impact, grow, and thrive. A place where they find meaning and purpose in doing the important work of ensuring communities have the vital energy, light, and communications to prosper. Our culture is inclusive and welcoming. Our teams are empowered with abundant training, tools, and opportunities to follow their curiosity and ambitions. Everyone has an equal chance to advance. Everyone is supported, respected, and challenged to be their best. We’re always looking for talented and dedicated people to join us and love where they work. Henkels & McCoy West is a proud subsidiary of MasTec (NYSE: MTZ), a Fortune 500 Company ranked by Energy News-Record as one of the leading contractors in the country. H&M West is part of the MasTec Power Delivery segment. We are certified as a minority-controlled company by the National Minority Suppliers Development Council (NMSDC). Our rich diversity of people and ideas makes us a stronger, more innovative organization.

Requirements

Bachelor’s degree in Human Resources, Business Administration, or a related field; SHRM-CP certification preferred or equivalent experience
2+ years of progressive HR or business operations experience; LOA experinece highly preferred
Experience with HRIS systems such as iCIMS, UKG, and JD Edwards (JDE) preferred
Strong attention to detail, confidentiality, and organizational skills
Excellent communication and time‑management abilities
Valid driver’s license and ability to travel regionally
Ability to lift up to 20 lbs

Nice To Haves

SHRM-CP certification preferred
LOA experience highly preferred
Experience with HRIS systems such as iCIMS, UKG, and JD Edwards (JDE) preferred

Responsibilities

Lead new hire orientation for craft and professional employees
Prepare and distribute onboarding materials
Coordinate background checks and drug screens through First Advantage
Process new hires in iCIMS, UKG, and JD Edwards (JDE) and communicate updates with internal stakeholders
Serve as backup support for new hire processing and onboarding activities
Travel to regional sites to conduct HR orientation and training sessions
Manage HireRight I‑9 authorization and reverification processes
Download and retain employee I‑9s and supporting documentation for internal records
Run Clearinghouse reports as required
Monitor HireRight reverification reports and maintain supporting documentation
Serve as the primary contact for FMLA, CFRA, disability, workers’ compensation, and personal leaves
Provide required documentation, track leave timelines, and manage return‑to‑work processes
Coordinate with managers, payroll, and internal teams on status changes
Support reporting related to furloughs, terminations, or potential LOA activity
Conduct weekly SOX audits, including: New Hires, Terminations, Job Changes, JDE updates, Direct Deposit changes
Complete weekly compare reports and meetings to verify direct deposit data accuracy
Support quarterly PwC and Audit Board audits
Assist with IRS Lock‑In Letters and required follow‑up
Manage fuel reconciliation monthly audits
Track and report total hours for Environmental reporting
Ensure required labor law postings are accurate and displayed at all regional sites
Maintain accurate, confidential, and compliant employee files
Compile and distribute HR mail for regional offices
Process W‑4 updates, address changes, personnel change forms, transfers, and step increases
Manage the WRHR email inbox, including: General inquiries, Voicemails, Verifications of Employment (VOEs)
Assist with email inbox coverage as needed
Request and compile employee records for subpoenas and legal requests
Coordinate contingent worker setup and assignment management with internal teams
Send internal communication emails, including FunEx notifications
Provide backup support to ensure all Federal, State, and Local Department of Transportation requirements are met
Assist with audits of Area Operations and Corporate for compliance
Provide backup support for the Union population Random Drug Testing program
Support interpretation and implementation of the company’s Substance Abuse policy, including assisting with related violations
Provide backup support for MVR administration for Henkels & McCoy West, LLC (Clearing House, DER, SAP, Manage driver files)