Human Resources Assistant

Air Treatment Corporation • Full-time • Brea, CA, US • 1d ago

Description:

Air Treatment Corporation is a dynamic, collaborative work environment. We understand the expectations of high–quality customer service, therefore we actively search and promote a cohesive team that is formulated to exceed expectations. We are devoted to the growth of our employees and look to provide opportunities for advancement from within, while providing a robust benefit package to our team members.

The Human Resource Assistant plays a pivotal role in supporting our HR department. Ensuring smooth HR Operations, day to day business, assisting in recruiting, onboarding, benefit administration and managing employee records. The HR Assistant will help shape a productive company culture and be instrumental in building a positive workplace environment.

Requirements:

Duties/Responsibilities:

Launches new hire enrollment of health and welfare plans, including changes and terminations. Processes required documents through payroll and insurance providers to ensure accurate record-keeping and proper deductions are captured by payroll.
Performs customer service functions by answering employee requests and questions.
Completes Forms I-9, verifies I-9 documentation and maintains I-9 files.
Submits online new-employee background checks and notifies team members of successful completion.
Assists with processing of terminations.
Proofreads and distributes documents and correspondence produced on behalf of the HR department.
Processes required paperwork for employee transfers, changes in job classification, salary increases, and other related employment matters.
Assists with the preparation of the performance review process.
Assists with recruitment and interview process. Setting up interviews and communicating with candidates and hiring team members. Tracks status of candidates in HRIS and responds with follow-up letters at the end of the recruiting process.
Makes photocopies; mails, scans and emails documents; and performs other clerical functions.
Files documents into appropriate employee files, prepares new-employee files.
Assists or prepares correspondence as requested.
Assist with planning and preparation of special events, i.e., benefit enrollment, leadership development meetings, retirement/holiday events.
Performs other related duties as assigned.

Required Skills / Abilities:

Excellent organizational skills and meticulous attention to detail, with a commitment to deliver high-quality work.
Proficient in Microsoft Office Suite (Excel, Word, PowerPoint, Outlook).
Working understanding of human resource principles, practices and procedures.
Excellent time management skills with the ability to manage multiple projects simultaneously and prioritize tasks effectively to meet deadlines.
Excellent written and verbal communication and customer service skills.
Ability to follow verbal and written instructions.
Ability to function well in a high-paced and at times stressful environment.
Detail-oriented with a high degree of accuracy.
Strong interpersonal skills and ability to work collaboratively in a team environment.
Ability to maintain confidentiality and handle sensitive information.

Education and Experience:

Associates degree in Business Administration
Minimum 3 years of experience in Human Resources
Familiarity with HRIS systems and basic data entry.
SHRM-CP and/or PHR certification required

Physical Requirements:

Prolonged periods of sitting at a desk.
Must be able to lift 15 pounds at times.

At Air Treatment Corporation, we are committed to growth, innovation, and excellence. As leading experts in HVAC & R solutions, we recognize that the success of our team drives the success of our company. We maintain a workplace built on fairness, professionalism, and opportunity, ensuring that every team member is valued. Join our team and contribute your unique skills and perspectives to help us continue delivering industry-leading solutions.

Related Jobs

HR Specialist

Miller Castings • Whittier, CA • $30 - $35 / hour • 2w ago

Human Resources (HR)

HR Specialist (TEMPORARY POSITION/SEASONAL) Salary Range: $30.00 – $35.00/hr. The HR Specialist is responsible for performing HR-related duties on a professional level and works closely with the HR team and management. T...

2w ago

Apply

HRIS Analyst

Liberty Military Housing • Full-time • Huntington Beach, CA, US • 1m ago

Human Resources (HR)

Overview Liberty Military Housing – Own your passion for service! At Liberty Military Housing ,we’re here to serve those who serve our country by providing military families with comfortable, well-maintained homes in inv...

1m ago

Apply

Site Safety Manager (Hesperia)

Griffith Company • Full-time • Los Angeles, CA • $98k - $130k / year • 3m ago

Human Resources (HR)

At Griffith Company, we recognize that people are our most valuable resource. We nurture that resource by fostering a work environment that encourages communication, respect and recognition. In this environment, Griffith...

3m ago

Apply

Sr/Human Resources Generalist

Sierra Pacific Engineering & Products • Full-time • Long Beach, CA, US • $75k - $85k / year • 3m ago

Human Resources (HR)

HR Generalist/Sr. HR Generalist Long Beach, CA – Onsite Sierra Pacific Engineering and Products (SPEP) designs, manufactures, and proudly distributes high quality, cost-effective industrial hardware components B2B. Our...

3m ago

Apply

Maintenance Engineer Rover (WOT)

Pegasus Clean • Full-time • Los Angeles, CA, US • $35 - $42 / hour • 10h ago

Maintenance

Overview About Us Pegasus leads the way in comprehensive cleaning and maintenance solutions. We leverage cutting-edge technology to create and maintain clean, healthy, and safe indoor environments for commercial, industr...

10h ago

Apply

Maintenance Engineer (WOT)

Pegasus Clean • Full-time • Los Angeles, CA, US • $35 - $48 / hour • 10h ago

Maintenance

10h ago

Apply

Rover (Travel Team)

Pegasus Clean • Full-time • Long Beach, CA, US • $20 - $21 / hour • 10h ago

10h ago

Apply

Rover Cleaner

Pegasus Clean • Full-time • Long Beach, CA, US • 10h ago

Cleaning & Sanitation

10h ago

Apply

JR. Multi-Family Plumbing Engineer – Entry Level

NP Mechanical • Full-time • Corona, CA, US • $24 - $28 / hour • 1d ago

Engineering Plumber

Position Title: JR. Multi-Family Plumbing Engineer – Entry Level Location: Corona, CA Salary Interval: Hourly Non-Exempt Pay Range: $24.00 - $28.00 Date Posted: 01/15/2026 Application Instructions Before you apply A few...

1d ago

Apply

JR. Multi-Family Plumbing Estimator – Entry Level

NP Mechanical • Full-time • Corona, CA, US • $24 - $28 / hour • 1d ago

Construction Installation & Maintenance Plumber

Position Title: JR. Multi-Family Plumbing Estimator – Entry Level Location: Corona, CA Salary Interval: Hourly Non-Exempt Pay Range: $24.00 - $28.00 Date Posted: 01/15/2026 Application Instructions Before you apply A few...

1d ago

Apply