Human Resources Manager

Overview

We are seeking an experienced and strategic Human Resources Manager to lead our HR initiatives and foster a positive, compliant, and high-performing workplace environment. The ideal candidate will possess strong leadership skills, comprehensive knowledge of employment law, talent management, and HR systems, and will be instrumental in aligning HR strategies with organizational goals. This role offers an opportunity to influence company culture, oversee HR operations, and develop innovative programs that support employee growth and organizational success. This role works closely with our PEO partner and leadership team and suits a hands-on manager who knows California employment law and wants to build HR infrastructure at a scaling manufacturer.

This is an in-office role. We are seeking candidates who live within commuting distance of Baldwin Park (San Gabriel Valley and greater Los Angeles area). Relocation assistance is not offered.

About Caelux

Caelux is a venture-backed advanced solar company headquartered in Baldwin Park, California. We manufacture perovskite-based Active Glass that boosts the efficiency of conventional silicon solar modules, helping manufacturers deliver more power from every panel. Our team combines materials science, engineering, and high-volume manufacturing, and we are scaling production in the United States. Joining Caelux means building the people foundation of a company at an inflection point.

Key responsibilities

Employee relations and compliance

• Provide HR policy guidance to employees and leadership
• Create and manage timely performance evaluations
• Create & maintain employee records
• Serve as on-site HR resource for employees and supervisors on policies, attendance, performance, and workplace concerns.
• Support investigations and documentation in partnership with leadership and legal counsel.
• Maintain compliance with California and federal employment law, including wage and hour, meal and rest periods, harassment prevention training (SB 1343), workplace violence prevention (SB 553), and required postings.
• Maintain the employee handbook and HR policies, and keep HR records audit-ready.
• Manage mandatory training schedule to ensure all employees are compliant

Benefits and insurance administration

• Administer medical, dental, vision, life, disability, and 401(k) programs, including open enrollment, qualifying life events, and new-hire enrollments.
• Serve as first point of contact for employee benefits questions and resolve carrier and eligibility issues.
• Coordinate leave administration (CFRA, FMLA, PDL, CA SDI/PFL) and workers' compensation claims, including return-to-work and interactive process documentation.
• Partner with our insurance broker on renewals, census data, and plan compliance (ACA reporting, COBRA, required notices).

PEO partnership

• Act as primary day-to-day liaison with our PEO for payroll inputs, benefits, HRIS records, and compliance support.
• Process new hires, status changes, compensation changes, and terminations in the PEO platform accurately and on deadline.
• Audit PEO invoices, deductions, and employee data each pay cycle and escalate discrepancies.

Recruiting

• Manage full-cycle recruiting for hourly production, technician, engineering, and professional roles: job postings, sourcing, screening, interview scheduling, and candidate communication.
• Partner with hiring managers on role definition and interview plans, and maintain applicant tracking records.
• Build local talent pipelines through job boards, community colleges, workforce agencies, and staffing partners in the San Gabriel Valley.

Job leveling and compensation

• Maintain the company's job architecture, including job families, levels, and titles.
• Draft and update job descriptions, and assign FLSA and California exempt/non-exempt classifications.
• Support compensation benchmarking and salary range development, and ensure postings comply with California pay transparency requirements.

Offer letters and onboarding

• Prepare offer letters and employment documentation using approved templates, and coordinate approvals with leadership.
• Run new-hire onboarding: I-9 and E-Verify, background checks, PIIA and policy acknowledgments, required California notices, and first-day orientation.
• Coordinate with IT, facilities, and EHS so new hires have equipment, access, PPE, and required safety training on day one.

Offboarding

• Manage voluntary and involuntary separations, including final pay timing under the California Labor Code, required separation notices, and benefits continuation.
• Coordinate equipment and access retrieval and conduct exit interviews.
• Maintain complete personnel files and separation documentation.

Immigration support

• Coordinate with immigration counsel on H-1B, TN, O-1, OPT/STEM OPT, and green card matters, including document collection, deadlines, and status tracking.
• Maintain I-9 reverification schedules and work authorization expiration tracking.

Required qualifications

• 4+ years of progressive HR experience, including at least 2 years supporting a manufacturing, industrial, or hourly workforce in California.
• Working knowledge of California labor law and employment practices: wage and hour, overtime and alternative workweeks, meal and rest breaks, final pay, leaves of absence, pay transparency, and required notices and trainings.
• Hands-on experience administering employee benefits and insurance programs, including open enrollment and carrier coordination.
• Experience working with a PEO (for example Sequoia One, Justworks, Insperity, TriNet, or ADP TotalSource) as the client-side HR administrator.
• Full-cycle recruiting experience for both hourly and salaried roles.
• Experience drafting offer letters and managing onboarding and offboarding end to end, including I-9 compliance.
• Sound judgment with confidential information and the ability to handle sensitive employee matters with discretion.
• Strong organization, attention to detail, and follow-through in a fast-paced environment with shifting priorities.
• Proficiency with Microsoft 365 (Excel, Word, Outlook) and HRIS/ATS platforms.
• Bachelor's degree in Human Resources, Business, or a related field, or equivalent experience.
• Ability to work on-site in Baldwin Park five days per week.regulations, and workers' compensation procedures.
• Exceptional communication skills with the ability to handle confidential information professionally and effectively collaborate across teams.
• Demonstrated project management capabilities with experience leading HR initiatives from conception through execution.
• Bachelor’s degree in Human Resources, Business Administration or related field; HR certification (e.g., SHRM-SCP or PHR) is preferred.

Preferred qualifications

• Experience supporting employment-based immigration (H-1B, TN, O-1, OPT/STEM OPT, PERM) in coordination with outside counsel.
• Experience building or maintaining a job leveling framework and salary bands at a growth-stage company.
• Experience with leave administration and workers' compensation in a manufacturing setting.
• Familiarity with Cal/OSHA requirements and partnering with EHS on safety training and recordkeeping.
• PHR, SPHR, SHRM-CP, or SHRM-SCP certification.
• Bilingual English/Spanish or English/Mandarin.
• Experience at a venture-backed startup or scaling manufacturer.

Compensation and benefits

The base salary range for this position is $75,000 to $105,000 per year. Final pay depends on experience, skills, and qualifications. The position also includes medical, dental, and vision insurance, a 401(k) plan, paid time off, and paid holidays.

Work environment

This role is based at our Baldwin Park manufacturing facility and splits time between office and production areas. The position requires regular walking through the factory floor, use of required PPE in production areas, and occasional lifting of up to 25 pounds. Occasional early, late, or weekend availability may be needed to support production shifts.

Equal opportunity employer

Caelux is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, ancestry, age, disability, medical condition, genetic information, marital status, military or veteran status, or any other characteristic protected by federal, state, or local law. We provide reasonable accommodation to applicants with disabilities upon request.

Pursuant to the California Fair Chance Act and the Los Angeles County Fair Chance Ordinance, Caelux will consider qualified applicants with arrest or conviction records.

Pay: $75,000.00 - $105,000.00 per year

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Health insurance
• Paid time off
• Vision insurance

Work Location: In person