Human Resources Assistant (law firm or professional services environment) - Cerritos, California

MissionHires; Cerritos (CA); On-site; USD 45,000 - 60,000; Full time

Job summary

MissionHires, a California-based law firm, is looking for a Human Resources Assistant to support core HR functions. You will provide administrative support across recruitment, onboarding, compliance, and employee records maintenance.

The ideal candidate has a degree in Human Resources or related field, combined with 1–2 years of HR experience. Strong organizational and communication skills are essential, as is proficiency in Microsoft Office and HRIS platforms.

This role offers a chance to accelerate your career in a collaborative, fast-paced environment.

Qualifications

• 1-2 years of Human Resources experience, preferably in a law firm.
• Strong organizational skills with exceptional attention to detail.
• Ability to manage multiple priorities and meet deadlines.

Responsibilities

• Post job openings and manage applicant tracking systems.
• Coordinate interview scheduling and candidate communications.
• Maintain accurate employee records and HRIS data.

Skills

Organizational skills

Communication skills

Proficiency in Microsoft Office

Attention to detail

Customer service mindset

Education

Associate or bachelor's degree in Human Resources or related field

Tools

HRIS platforms like ADP, Paycom, Workday

Job description

A California-based law firm is seeking a highly organized and proactive Human Resources Assistant to support the day-to-day operations of the Human Resources Department.

The Human Resources Assistant provides essential administrative and operational support across core HR functions, including recruitment, onboarding, benefits administration, HRIS data management, compliance, employee records maintenance, and responding to general employee inquiries. This role is an excellent opportunity for a motivated professional to build and advance a career in Human Resources within a collaborative, fast-paced law firm environment.

Responsibilities

• Post job openings and manage applicant tracking systems.
• Coordinate interview scheduling and candidate communications with recruiters and hiring managers.
• Assist with pre-employment processes, including background checks, reference checks, and I-9 documentation.
• Support new hire onboarding and orientation logistics.
• Maintain accurate, up-to-date, and compliant employee records and files.
• Enter and update employee data in HRIS systems, including job changes, compensation updates, and departmental transfers.
• Track employee status changes, leaves of absence, and other personnel actions.
• Prepare HR reports, employee rosters, and compliance-related documentation.
• Respond to general benefits inquiries and elevate complex issues to appropriate HR contacts or vendors.
• Assist with benefits enrollment and support open enrollment communications and materials.
• Serve as a point of contact for routine employee questions and direct employees to appropriate resources.
• Maintain strict confidentiality of sensitive HR information and ensure compliance with firm policies and employment laws.
• Monitor required training completions and other compliance-related activities.
• Support HR initiatives such as policy updates, audits, employee events, recognition programs, wellness initiatives, and internal HR communications (e.g., intranet updates).
• Perform additional duties and special projects as assigned to support departmental needs.

Requirements

• Associate or bachelor’s degree in Human Resources, Business Administration, or a related field preferred; equivalent experience will be considered.
• 1–2 years of Human Resources experience, preferably in a law firm or professional services environment.
• Strong organizational skills with exceptional attention to detail.
• Excellent written and verbal communication and interpersonal skills.
• Ability to manage multiple priorities, meet deadlines, and work with a sense of urgency.
• Professional, proactive, and team-oriented approach with a strong customer service mindset.
• Proven ability to handle confidential information with discretion.
• Proficiency in Microsoft Office (Word, Excel, Outlook, PowerPoint).
• Experience with HRIS platforms such as ADP, Paycom, Workday, or similar systems.
• Working knowledge of employment law fundamentals and HR best practices.