Job Title: 401(k) Administrator
Location: Fountain Valley, CA (100% Onsite)
Employment Type: Temporary (2-3 months covering LOA)
Compensation: $35-$38/hour
Position Summary
We are seeking an experienced 401(k) Administrator to manage the day-to-day administration of our retirement plan and serve as the primary liaison between HR, Payroll, Fidelity, auditors, and external advisors.
This role will be responsible for 401(k) operations, payroll integration, participant transactions, compliance activities, Form 5500 coordination, audit support, and ongoing plan administration. The ideal candidate has strong retirement plan experience, exceptional attention to detail, and a solid understanding of ERISA and retirement plan compliance.
Responsibilities
401(k) Plan Administration
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Manage day-to-day administration of the company's 401(k) plan.
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Process enrollments, eligibility updates, terminations, beneficiary changes, and employee record maintenance.
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Administer participant loans, hardship withdrawals, rollovers, and distributions.
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Serve as the primary point of contact for employees and plan vendors regarding retirement plan matters.
Payroll Integration & Reconciliation
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Manage bi-weekly data feeds to Fidelity, including new hires, terminations, and leave of absence updates.
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Reconcile payroll deductions and retirement plan contributions.
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Ensure timely and accurate contribution remittances.
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Monitor and maintain ADP-to-Fidelity integration accuracy.
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Research and resolve discrepancies between payroll and retirement plan records.
Compliance & Reporting
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Coordinate the annual Form 5500 process.
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Validate payroll, census, and contribution data.
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Partner with Fidelity, auditors, advisors, and third-party administrators on required filings.
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Review Form 5500 filings and supporting schedules for accuracy.
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Maintain retirement plan documentation and compliance records.
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Support annual audits and compliance testing activities.
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Ensure compliance with ERISA, fiduciary, and regulatory requirements.
Committee & Vendor Coordination
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Coordinate 401(k) committee meetings and maintain meeting documentation.
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Prepare materials, agendas, and follow-up action items.
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Manage relationships with Fidelity and other retirement plan vendors.
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Assist with employee communications and educational materials related to the 401(k) plan.
Qualifications
Required
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5+ years administering 401(k) or retirement plans
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Experience working with Fidelity or another retirement plan recordkeeper
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Form 5500 coordination experience
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Payroll reconciliation and contribution processing experience
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Knowledge of ERISA and retirement plan compliance requirements
Preferred
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ADP Workforce Now experience
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Experience supporting annual compliance testing and retirement plan audits
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CEBS, QKA, or related benefits certification
Why Join Us?
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Make an immediate impact supporting a critical retirement plan function.
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Work closely with HR, Payroll, Finance, Fidelity, and external advisors.
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Apply your expertise in retirement plan administration, compliance, and audit support.
All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, and Los Angeles County Fair Chance Ordinance.
