Senior HR Operations Lead: Payroll & Benefits

Addison Group; Newark (DE); On-site; USD 110,000 - 130,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k)

Job summary

Addison Group in Newark, Delaware is seeking a hands-on Senior HR Manager to build and run an HR department for about 250 employees. You will oversee payroll, benefits, compliance, talent acquisition, employee relations, performance management, and more.

This is a tactical build-out role: consolidate functions, own operations, and eventually lead a small team of payroll and benefits staff; strong payroll and benefits depth is essential.

Qualifications

• Bachelor's or Master's degree in Human Resources, Business Administration, or a related field.
• Minimum of 5 years of HR management experience with depth in payroll and benefits.
• Strong working knowledge of ACA, FMLA, and ERISA.
• Experience managing vendors, brokers, carriers, and third-party administrators.
• Experience overseeing multi-cycle payroll for an organization of scale.
• Experience managing talent acquisition and employee relations.
• Ability to maintain strict confidentiality and handle sensitive information.
• Strong communication and leadership abilities to head a department.
• HR certification preferred (PHR, SPHR, SHRM-CP, or SHRM-SCP).
• Experience with Paychex is a plus.

Responsibilities

• Oversee and audit bi-weekly payroll processing for approximately 250 employees.
• Ensure accuracy, timeliness, and proper controls across each pay cycle.
• Serve as escalation point for payroll questions and discrepancies.
• Manage annual benefits renewals across health, dental, vision, and 401(k).
• Lead Open Enrollment end to end, including employee communication and education.
• Guide employees through benefits options and act as the main point of contact for benefits questions.
• Act as primary contact for the 401(k) broker.
• Ensure timely employee deferrals, employer matches, and accurate loan administration.
• Maintain a strong working relationship with the retirement plan partner.
• Maintain compliance with ACA, FMLA, ERISA, and applicable federal and state labor laws.
• Keep accurate, audit-ready records and support internal and external audits.
• Report on HR metrics to support decision-making.
• Manage the recruitment and selection process across the organization.
• Oversee employee relations, addressing demands, grievances, and workplace concerns.
• Serve as a bridge between management and employees to support a positive work environment.
• Manage relationships with brokers, insurance carriers, and third-party administrators.
• Coordinate vendor deliverables, renewals, and service issues.
• Oversee onboarding and support talent needs at an operational level.
• Hire, develop, and lead a payroll clerk and a benefits administration associate as the function grows.
• Bring structure and ownership to functions currently distributed across other teams.

Skills

Payroll admin

Benefits admin

Compliance knowledge

Vendor management

Employee relations

Talent acquisition

Team leadership

Communication skills

HR certifications

Education

Bachelor's or Master's in HR

Tools

Paychex

Job description

Addison Group in Newark, Delaware is seeking a hands-on Senior HR Manager to build and run an HR department for about 250 employees. You will oversee payroll, benefits, compliance, talent acquisition, employee relations, performance management, and more.

This is a tactical build-out role: consolidate functions, own operations, and eventually lead a small team of payroll and benefits staff; strong payroll and benefits depth is essential.