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.

The primary purpose of this role is to manage the full employee lifecycle—from talent acquisition and onboarding to performance management and employee relations—while ensuring strict compliance with MSHA/OSHA standards and federal/state labor laws. The successful candidate will be a champion of Martin Marietta’s culture, driving engagement and safety initiatives that support the company’s mission as a leading provider of natural resource-based building materials.

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

ADDITIONAL DETAILS

Travel

Expected travel %

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.

A member of the S&P 500 Index, Martin Marietta is an American-based company and a leading supplier of heavy building materials – including aggregates, cement, ready-mixed concrete and asphalt. Through a network of operations spanning 28 states, Canada and the Bahamas, dedicated Martin Marietta teams supply the foundational resources upon which our communities thrive. Martin Marietta's Magnesia Specialties business produces high-purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications.

At Martin Marietta, we strive to work with the best and the brightest – those who have the potential to become our company's future leaders. Each of our roughly 9,500 people shares a common purpose regardless of their professional role or work environment. Together, we utilize our diverse skills and experiences to drive our company and its extraordinary culture forward. Our aim is to build on our foundation of success and help values-driven and hardworking people realize their full potential. When you decide to invest your career in Martin Marietta, you'll know what it's like to be respected, challenged and rewarded.

In return, we offer a highly competitive benefits package, including: 

• Medical
• Prescription Drug
• Dental
• Vision
• Health Care Reimbursement Account
• Dependent Care Reimbursement Account
• Wellness Programs
• Employee Assistance Plan
• Paid Holidays and Vacation
• 401(k) with Company matching
• Pension
• Salary Continuation – Short-Term Disability
• Long-Term Disability Options
• Employee Life Insurance
• Spouse & Dependent Life Insurance
• Business Travel Accident Insurance
• Direct Deposit Payroll
• Educational/Tuition Assistance Plan
• College Scholarship Program – for dependent children
• Matching Gift Program
• New Auto Purchase Discount Plans

At Martin Marietta, we are proud to be an Equal Opportunity Employer. We are committed to providing an environment of mutual respect where equal employment opportunities are available to all qualified applicants and teammates. We celebrate diversity and commit that qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.