U.S. Benefits Administrator at F5

You are an experienced HR professional with 2 to 4 years of hands-on experience managing U.S. benefits programs, health and welfare plans, and retirement admini

Work type: hybrid

Location: Seattle

Salary: $72,000 – $108,000/yr

Type: Full-time

Summary

You are an experienced HR professional with 2 to 4 years of hands-on experience managing U.S. benefits programs, health and welfare plans, and retirement administration. You possess a technical understanding of federal regulations including ERISA, HIPAA, ACA, and COBRA. **What makes it worth a look...** F5 offers a hybrid role in Seattle with an annual salary between $72,000 and $108,000. This position provides direct exposure to enterprise-level benefits operations and compliance reporting within a large technology organization. **You might be a good fit if you...** * Have practical experience using HRIS platforms like Workday. * Can manage complex annual processes like open enrollment and 401(k) audits. * Possess deep knowledge of Section 125, COBRA, and ACA compliance requirements. * Excel at resolving benefit escalations with third-party carriers and brokers.

Job Description

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation. 
 

Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

Job Title: U.S. Benefits AdministratorOverview

The Benefits Administrator is responsible for the day‑to‑day administration, compliance, and communication of the organization’s U.S. employee benefits programs. This role ensures a high‑quality employee experience by managing benefits operations with accuracy, efficiency, and a strong customer‑service mindset. The ideal candidate has a solid understanding of U.S. benefits regulations and enjoys working in a detail‑oriented, fast‑paced environment.

Key ResponsibilitiesBenefits Administration

• Manage daily administration of health, welfare, and retirement plans, including medical, dental, vision, HSA/FSA, life insurance, disability, EAP, and 401(k).


• Process employee enrollments, changes, terminations, and qualifying life event (QLE) adjustments.


• Assist employees with benefit questions, resolving issues promptly and professionally.


• Coordinate with third‑party administrators, brokers, and carriers to ensure accurate plan operations.

• Maintain compliance with ERISA, HIPAA, ACA, Section 125, COBRA, and other federal/state regulations.


• Support annual compliance filings (e.g., 5500, SAR, ACA reporting).


• Assist with annual audits, including 401(k) nondiscrimination testing and plan audits.


• Maintain accurate documentation and benefit records.

• Support planning and execution of annual open enrollment, including system setup, testing, and communication.


• Assist with updating employee materials, plan summaries, and digital content.


• Provide employee guidance during the enrollment period to ensure a smooth experience.

• Collaborate with benefits vendors to resolve escalated employee issues.


• Maintain accuracy in HRIS/benefits administration systems; audit data regularly.


• Help manage file feeds, eligibility files, and carrier connections.


• Process vendor payments.

• Develop clear and accessible benefits communications.


• Conduct benefits orientations for new hires and provide ongoing education to employees.


• Support wellness initiatives and benefits engagement programs.

• 2–4+ years of U.S. benefits administration experience (health & welfare and/or retirement programs).


• Strong working knowledge of U.S. benefits regulations (ACA, COBRA, ERISA, HIPAA).


• Excellent attention to detail and ability to handle confidential information.


• Experience with HRIS/benefits platforms – Workday a plus.


• Strong analytical, organizational, and problem‑solving skills.


• Exceptional customer‑service focus and communication skills.

• Experience supporting multi‑state or multi‑site employee populations.


• Experience working with brokers or third‑party administrators.


• 401k and/or international experience a plus.

• Hybrid option


• Ability to work during peak periods such as open enrollment, annual filings, and audits.

The annual base pay for this position is: $72,000.00 - $108,000.00

F5 maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, geographic locations, and market conditions, as well as to reflect F5’s differing products, industries, and lines of business. The pay range referenced is as of the time of the job posting and is subject to change.You may also be offered incentive compensation, bonus, restricted stock units, and benefits. More details about F5’s benefits can be found at the following link:[https://www.f5.com/company/careers/benefits](https://www.f5.com/company/careers/benefits). F5 reserves the right to change or terminate any benefit plan without notice.Please note that F5 only contacts candidates through F5 email address (ending with @f5.com) or auto email notification from Workday (ending with f5.com or@myworkday.com).

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