Retirement (Pension) Benefits Specialist

Job Title: Retirement (Pension) Benefits Specialist (Part-Time)

Industry: Non-Profit

Location: Arlington, VA

Assignment Type: 4–6 month contract

Compensation: $27.00 – $30.00 / Hourly (commensurate with experience)

Work Schedule: 20 hours per week; hybrid schedule (on-site for initial weeks, then 2–3 days remote, flexible scheduling)

Benefits: This position is eligible for medical, dental, vision, and 401(k).

About Our Client:

Addison Group has partnered with a mission-driven organization that provides comprehensive financial and benefit services to a unique community of members. Their Human Resources department is a small but highly skilled team, and they are looking for an experienced Retirement Plan & Payroll Specialist to step in as the subject matter expert.

Job Description:

This part-time role is ideal for a professional who thrives on detail, compliance, and precision in retirement plan and payroll administration. You will oversee all aspects of retirement plan operations while supporting payroll processing and helping develop junior HR staff into well-rounded payroll and benefits professionals.

Key Responsibilities:

• Manage day-to-day administration of multiple retirement plans (401k, 457b, pension).
• Ensure compliance with ERISA, IRS, and all applicable regulatory requirements.
• Oversee retirement plan audits, annual testing, reporting, and employee notices.
• Partner with vendors and internal stakeholders to resolve retirement-related matters.
• Process and reconcile bi-weekly payroll, including tax withholdings and benefit deductions.
• Prepare payroll-related reports, assist with audits, and resolve compliance issues.
• Provide expert-level guidance and training to junior HR staff on payroll and retirement administration.
• Respond to employee inquiries with accuracy and professionalism.

Qualifications:

• 5+ years of hands-on experience managing retirement plans (401k, 457b, pension) and payroll.
• Strong knowledge of retirement plan compliance (ERISA, IRS requirements).
• Experience reconciling payroll with retirement plan contributions and vendor submissions.
• Bachelor’s degree preferred (not required); certifications such as CRPP, QPA, QKA, CPFA a plus.
• Proficiency in HRIS/payroll systems (Dayforce preferred).
• Excellent communication skills and ability to provide guidance with confidence.
• Comfortable working on-site part of the week, including in a professional, military-focused environment.

Additional Details:

• Reports to HR Director.
• Team size: 3 HR staff.
• Company size: ~125 employees.
• Contract start date: ASAP
• Interview process: 2–3 rounds (phone, virtual, in-person).

Perks:

• Flexible part-time schedule (20 hours/week).
• Hybrid work option after training.
• Opportunity to make an immediate impact as the in-house retirement expert.

Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Addison Group complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities. Reasonable accommodation is available for qualified individuals with disabilities, upon request.

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