Position Summary:

The Sr. Manager, Benefits is responsible for design, administration, compliance, financial stewardship, and vendor management of a comprehensive benefits portfolio, including self-funded health plans, retirement programs, leave and absence management, recognition programs, and ancillary benefits.

This role partners closely with Finance, Legal/Compliance, Payroll, HR Operations, and global HR teams to deliver a competitive, cost-effective, scalable benefits experience and ensure strong governance while remaining hands-on in execution. The ideal candidate brings deep technical expertise, strong financial and analytical skills, sound judgment, and the ability to balance employee experience, compliance, and cost in a global public-company, high-growth semiconductor environment.

Essential Duties and Responsibilities:

• Own the multi-year benefits strategy, aligning plan design and investment with talent, wellbeing, and financial objectives for a public, high-growth semiconductor organization.
• Lead annual plan design and renewal for self-funded medical/Rx, dental, vision, and other health plans; develop recommendations using data-driven insights (utilization, trend, risk, stop-loss, PBM performance).
• Serve as a subject-matter expert on leave programs (FMLA, ADA interactive process, state leaves, company LOAs), ensuring compliance and empathetic administration.
• Oversee 401(k) strategy and operations, including employer match, plan governance, fiduciary coordination with plan advisors/recordkeeper, nondiscrimination testing, and employee education.
• Manage employee recognition programs (service awards, peer recognition) to drive engagement and reinforce company values; continuously refine criteria, operations, and communications.
• Evaluate and optimize ancillary benefits (HSA, FSA, life/AD&D, disability, EAP, critical illness, accident, legal, ID theft) for competitiveness, utilization, and cost.
• Lead day-to-day administration in partnership with HR team and vendors; ensure accurate eligibility, enrollment, and payroll integrations.
• Own vendor relationships and RFPs (medical TPA, PBM, stop-loss, 401(k) recordkeeper, leave administrator, recognition platform); drive SLAs, fee transparency, and performance guarantees.
• Ensure compliance with ERISA, ACA, COBRA, HIPAA, FMLA, IRS, DOL, and SEC-related benefits disclosures as applicable to a public company; oversee plan documents, SPDs, SBCs, Form 5500, SARs, NDT for retirement plans, and required notices.
• Partner with Legal and Finance on SOX-relevant controls, audits, plan fiduciary committee materials, and risk mitigation; maintain comprehensive documentation and process controls.
• Manage open enrollment end-to-end: plan design approvals, cost modeling, communications, system configuration/testing, and post-implementation audits.
• Develop and monitor benefits KPIs (medical trend, PEPM, specialty Rx, HSA adoption, LOA incidence/duration, 401(k) participation/deferral rates, financial wellness engagement) and deliver insights to leadership.
• Create clear, inclusive benefits communications such as employee communications, guides, legal and program updates.
• Develop a small but critical benefits team, setting service standards, prioritization, and escalation protocols while fostering continuous improvement and strong vendor partnership.

Required Qualifications:

Education: Bachelor's degree in Human Resources, Business, Finance, or related field (or equivalent experience).

Experience: 8+ years of progressive benefits experience, including self-funded medical plan administration and 401(k) governance; 3+ years owning enterprise level benefits programs or leading complex, cross functional initiatives.

Industry/Environment: Experience in high tech industry in a global environment required; manufacturing a preferred.

Technical Expertise:

• Deep knowledge of ERISA, ACA, COBRA, HIPAA, FMLA, ADA, IRS/DOL requirements, and retirement plan fiduciary best practices.
• Hands-on experience with leave administration (FMLA, ADA, state leaves) and third-party leave vendors.
• Demonstrated success reducing medical trend, optimizing stop-loss, and improving PBM outcomes.
• Proficiency with HRIS/benefits admin systems (e.g., SuccessFactors or similar), data analytics, and Excel/BI tools.

Skills:

• Vendor selection and negotiation, RFP leadership, and SLA management.
• Strong financial acumen (forecasting, PEPM analysis, contribution strategy, plan funding).
• Strong judgement in balancing employee experience, compliance, and cost.
• Foster a culture of accountability, continuous improvement, and strong internal and external partnership.
• Exceptional communication skills with the ability to translate complex topics for executives and employees.
• Project management across cross-functional teams with disciplined execution and change management.

Preferred Qualifications:

• Master's degree, CEBS, CBP, or SPHR/SHRM-SCP certification(s).
• Experience supporting multi-state operations and global benefits coordination.
• Background managing recognition platforms and designing data-driven rewards programs.
• Experience supporting ADP payroll and system processing.
• Exposure to Off-Shore Captive Stop Loss programs.

Hybrid office environment; ability to collaborate across time zones and occasionally visit Amkor sites. Occasional travel (up to 10-15%) for vendor meetings and site support.

Location:

Tempe, AZ. This position has a hybrid schedule.