Human Resources Generalist

Founded in 2009, Endemic Environmental Services, Inc. is a growing environmental consulting firm supporting infrastructure projects across California. We are seeking a PART-TIME HR Generalist to work onsite in our Fullerton office and support our HR Manager in delivering seamless HR operations.

This role begins part-time (20–25 hours/week) with the opportunity to grow into a full-time position as the company continues to expand and as the person in this role demonstrates reliability, grows their capabilities, and becomes an essential part of our workflow.

We are looking for a reliable, detail-oriented HR professional who is tech-savvy, comfortable with AI tools, and excited about improving processes, strengthening compliance, and partnering closely with HR leadership. If you’re the type to say “what if we tried it this way?” - you’ll be right at home.

Key Responsibilities

Onboarding & Offboarding

• Lead onboarding lifecycle from offer letter through day-one readiness
• Manage I-9s, Paychex Flex workflows, system access, and compliance documentation
• Conduct onboarding orientations and ensure a consistent, high-quality new-hire experience
• Manage offboarding tasks including final paperwork, system deactivation, exit documentation, and compliance tracking

HR Operations, Compliance & Safety Training

• Own all onboarding and annual safety training tracking, scheduling, and documentation
• Maintain employee files that meet multi-state HR compliance standards
• Support leave administration (FMLA, CFRA, PDL, ADA) with professionalism and accuracy
• Assist with safety documentation, certifications, and regulatory updates

Payroll & Benefits Support

• Conduct weekly timesheet audits
• Learn Paychex Flex payroll processing and transition into handling payroll independently on an as-needed basis
• Support benefits updates, employee questions, and Open Enrollment activities

Recruiting & Employee Support

• Post positions, screen applicants, coordinate interviews, and support hiring teams
• Respond to employee questions with professionalism and good judgment
• Support employee relations documentation and follow-up

HR Partnership & Policy Development

This is where the magic is.

• Work closely with the HR Manager to brainstorm ideas, evaluate options, and implement new or improved policies
• Contribute to SOP development, handbook updates, templates, training decks, and manager toolkits
• Help strengthen HR systems, processes, and internal communication
• Bring a tech-forward lens to modernizing HR operations, including AI-enabled documentation and workflow improvements

Qualifications

• 2–4 years of HR Generalist or HR Coordinator experience (California experience strongly preferred)
• High competency with HRIS systems (Paychex/ADP), spreadsheets, and digital admin tools
• Tech-savvy, with working knowledge of AI tools for content drafting, automation, and process improvements
• Strong understanding of HR compliance fundamentals, CA wage-and-hour laws, onboarding requirements, and safety documentation
• Excellent communication skills, judgment, and follow-through
• Enjoys partnership, idea-sharing, and building better systems together
• Comfortable working onsite in a small-office, high-collaboration environment

Schedule & Compensation

• Part-time: 20–25 hours per week
• Location: Onsite in Fullerton, CA
• Schedule: Weekdays during standard business hours
• Compensation: $30 - $35 per hour

Part-Time Benefits

• 401(k) Plan Participation with Matching 4%
• 40 Hours Paid Sick Leave
• 10 Observed Holidays
• EAP (Employee Assistance Program) Participation

Why This Role Matters

You won’t be lost in a 12-person HR department. You’ll be working side-by-side with HR leadership, shaping the employee experience, improving processes, and helping build a stronger operational foundation. This is an opportunity to contribute strategically while still owning meaningful day-to-day HR work.