Human Resources (HR) Business Partner

Robert Half Management Resources is seeking an experienced interim Human Resources Business Partner to support leaders and employees within a unionized workforce for our professional services client in Los Angeles, California, on a 5+ month engagement. This role will focus on aligning HR practices with business and operational objectives while ensuring compliance with employment laws, internal policies, and collective bargaining agreements. The consultant will play a critical role in strengthening employee relations, providing guidance on performance management, and equipping managers to address complex workplace matters with confidence and consistency.

Responsibilities:

• Collaborate with department leaders to align staffing strategies, team structure, and people initiatives with business priorities.

• Advise managers on employee relations matters, performance concerns, and workplace challenges to support consistent and effective decision-making.

• Apply and interpret collective bargaining agreements to ensure day-to-day practices remain compliant with contractual obligations.

• Act as a point of contact between management and union representatives to foster constructive labor-management communication.

• Conduct or support workplace investigations and help address employee concerns in a timely and thorough manner.

• Assist with grievance reviews, fact-finding, and resolution efforts within a union environment.

• Contribute to programs that improve employee engagement, organizational effectiveness, and overall workforce performance.

• Support HR administration and policy application while maintaining compliance with employment laws and internal standards.

• Utilize HR systems such as ADP HRB to help manage records, reporting, and HR-related processes where needed.

Qualifications:

• At least 7 years of human resources experience, including substantial work in an HR Business Partner capacity.

• Prior experience supporting unionized employee populations and working with collective bargaining agreements is strongly preferred.

• Demonstrated knowledge of employee relations, workplace investigations, and grievance handling.

• Solid understanding of HR policies, employment law, and compliant HR administration practices.

• Experience guiding managers through performance management and other sensitive employee matters.

• Strong communication and relationship-building skills with the ability to work effectively with leadership, employees, and union representatives.

• Familiarity with ADP HRB or comparable HR systems is preferred.

Compensation

About Us

Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more.

Robert Half will consider for employment qualified applicants with arrest or conviction records in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

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