Part-time Payroll/Benefits Assistant

Overview Part-time Human Resources Associate (Fractional HR Support) for a company of ~70 employees. This hybrid role requires in-office presence 2 days per week (South of Boston). About the Company With more than 30 years of experience, our firm is a recognized leader in delivering practical, science-based engineering and environmental solutions across the Northeast. Having completed over 15,000 projects across seven states, we pride ourselves on combining technical expertise with a commitment to creative, cost-effective problem-solving. Our team of professionals—spread across multiple office locations—supports a wide range of residential, commercial, industrial, and municipal clients. We foster a collaborative and mission-driven environment where people take pride in the quality and integrity of their work. About the Role We are seeking a part-time Human Resources professional to provide fractional HR support to our growing team of ~70 employees. This is an ideal opportunity for an experienced HR generalist or HR assistant looking to scale back while staying actively engaged in meaningful work. You will serve as a go-to resource for HR-related questions, oversee payroll and benefits administration, and help us build foundational HR processes as we scale. Responsibilities Serve as the main point of contact for employee HR and benefits-related questions Manage bi-weekly payroll using ADP Oversee benefits administration through our platform-based healthcare system (ACA-compliant, individual plan selection) Support onboarding/offboarding logistics in collaboration with department leads Maintain accurate employee records and help us begin implementation of a centralized HR system (we’re considering GoCo) Ensure compliance with employment laws and internal policies Assist with light reporting and audits as needed Collaborate with accounting team for payroll and benefits reconciliation Qualifications 5+ years of experience in Human Resources, ideally in a small to mid-sized company Comfortable operating independently and advising leadership on best practices Experience with ADP payroll systems and general benefits administration Familiarity with ACA-compliant benefits platforms a plus Previous experience with or openness to working in environments without a formal HRIS Discreet, approachable, and able to manage confidential matters with professionalism Comfortable with a hybrid schedule (2 days/week in-office) What We Offer Opportunity to make a meaningful impact without the demands of a full-time role Collaborative and supportive team culture Employment Details Seniority level: Associate Employment type: Part-time Job function: Human Resources Industries: Human Resources Services #J-18808-Ljbffr