Sr. HR Generalist

Martin Marietta; Phoenix (AZ); On-site; USD 65,000 - 90,000; Full time

Job summary

Martin Marietta in Phoenix seeks a Senior Human Resources Generalist to partner with plant managers and operations leaders, delivering HR services across a key business unit. You will lead recruitment for trades and non-technical roles, administer performance reviews, develop career paths, and ensure compliance with EEOC, FMLA, ADA, and FLSA, while promoting ONE Martin Marietta culture.

This role also drives safety training, HRIS data integrity, benefits open enrollment support, and HR metrics

Qualifications

• Minimum 5+ years of progressive HR experience in heavy industrial or construction settings.
• Bachelor’s degree in HR, business, or related field; professional HR certification is a plus.
• Strong knowledge of EEOC, FMLA, ADA, and FLSA with ability to interpret policies.
• Proven ability to lead recruitment across technical and non-technical roles.

Responsibilities

• Act as primary contact for employee concerns, conducting investigations and applying policies.
• Promote ONE Martin Marietta culture and drive inclusion and diversity.
• Advise management on personnel policies, procedures, and programs.
• Lead recruitment for technical and non-technical roles using ATS/CRM to build pipelines.
• Partner with hiring managers on sourcing strategies and campus partnerships.
• Administer performance reviews and guide managers on feedback.

Skills

HR policy execution

Employee relations

Recruitment leadership

Workforce planning

HRIS systems

MS Office

Communication skills

Confidentiality

Leadership

Education

Bachelor’s degree in Human Resources or Business Administration

PHR/SPHR/SHRM certification (preferred)

Tools

ATS/CRM tools

HRIS systems

MS Office Suite

Job description

Job Summary

The Senior Human Resources Generalist is a strategic partner and operational lead responsible for the delivery of HR services across a specific business unit. This individual serves as a trusted advisor to plant managers, operations leaders, and employees.

Key Duties And Responsibilities

• Act as the primary point of contact for employee concerns, conducting thorough investigations into grievances and ensuring fair and consistent application of company policies.
• Actively promote the "ONE Martin Marietta" culture, fostering an environment of mutual respect, inclusion, and diversity.
• Provide expert guidance to management and staff on the interpretation and execution of personnel policies, procedures, and programs.
• Lead the recruitment process for both technical (skilled trades, engineering) and non-technical roles, utilizing ATS and CRM tools to build a pipeline of diverse talent.
• Partner with hiring managers to develop innovative sourcing strategies, including community outreach, job fairs, and partnerships with local educational institutions.
• Implement engagement initiatives and recognition programs designed to improve morale and retention within plant and quarry environments.
• Act as the subject matter expert on company policies and the employee handbook, providing clear and consistent guidance to all staff levels.
• Administer the annual performance review process, ensuring timely completion and providing guidance to managers on delivering constructive feedback.
• Identify high-potential employees and collaborate with leadership to develop career paths and training plans that align with future business needs.
• Identify skill gaps and coordinate mandatory safety training, leadership development, and compliance-related webinars or workshops.
• Ensure all HR activities comply with federal and state regulations, including EEOC, FMLA, ADA, and FLSA.
• Support the administration of collective bargaining agreements, participating in grievance meetings and ensuring union-contract compliance.
• Work closely with Safety Managers to manage Workers' Compensation claims and ensure that HR practices support MSHA/OSHA safety standards.
• Maintain accurate employee records in the HRIS (Human Resources Information System), processing promotions, transfers, and terminations with a high degree of data integrity.
• Generate and analyze HR metrics to provide actionable insights to regional leadership.
• Assist in local salary surveys and provide support during the annual benefits open enrollment period.

Qualifications

Education

Bachelor’s degree in Human Resources, Business Administration, or a related field.

PHR, SPHR, SHRM-CP, or SHRM-SCP certification is a plus

Work Experience

5+ years of progressive HR experience, preferably in Heavy Industrial or Construction.

Knowledge, Skills, And Abilities

• OSHA/MSHA compliance and regulations
• HR best practices
• HR policies and procedures
• Employment law
• Effective communicator (written and spoken)
• Confidentiality
• Leadership
• Compensation design
• Workers’ compensation
• Microsoft Office programs
• HRIS systems
• Detail oriented
• Time management

Working Conditions

Some duties require outside assignments and require periods of work in all weather conditions, cold, wet, dry and dusty. Must be able to work in areas where noise levels are up to 85 dbs.