HR Assistant: Onboarding & Admin Support (Entry-Level)

Mountainside Treatment Center; Canaan (CT); On-site; USD 28,000 - 32,000; Full time

Benefits offered by this job

Comprehensive benefits

Paid time off

Paid holidays

401(k) matching

Free meals on campus

Wellness reimbursement

Job summary

Mountainside Treatment Center in Canaan, CT is seeking an entry-level Human Resources Assistant. The role provides day-to-day HR support, maintains records, supports onboarding and offboarding, and coordinates recruitment activities while upholding confidentiality and professional communication with employees and managers.

The position requires detail orientation, organizational skills, and comfort with data entry and HR systems.

Qualifications

• High School Diploma or equivalent.
• Associate or Bachelor’s degree in a related field preferred.
• Experience with Microsoft Office or similar applications; familiarity with HRIS, applicant tracking, payroll, or learning systems preferred.
• Excellent attention to detail, organization, and time-management skills.
• Ability to maintain confidentiality and use sound judgment with sensitive information.
• Professional written and verbal communication skills.
• Ability to prioritize tasks, follow processes, meet deadlines, and work independently or collaboratively.
• Awareness and sensitivity to addiction, socioeconomic differences, and cultural considerations.

Responsibilities

• Provide day-to-day administrative support to the HR Department, including paperwork processing, records organization, correspondence, and routine inquiries.
• Maintain electronic and paper employee records, personnel files, and documentation per requirements.
• Perform heavy data entry, processing, reviewing, and storing with accurate HRIS records and reports.
• Assist with employee file audits and track licenses, credentials, and trainings.
• Support onboarding and offboarding processes and related documentation.
• Assist recruitment activities: job postings, applicant tracking, interview scheduling, and communications.
• Respond to routine employee and manager questions with approved information or routing to HR.
• Complete employment verification requests and unemployment documentation.
• Support payroll, benefits, leave, and employee-relations administration under supervision.
• Assist HR audits, reports, communications, events, and projects while maintaining confidentiality.
• Collaborate with Payroll and other departments to resolve data or system discrepancies.

Skills

detail-oriented

organization

tech-savvy

self-motivated

personable

Microsoft Office

HRIS familiarity

data entry

confidentiality

communication skills

time-management

Education

High School Diploma

Associate degree

Bachelor’s degree

Tools

HRIS

Applicant Tracking

Payroll systems

Learning systems

Microsoft Office

Job description

Mountainside Treatment Center in Canaan, CT is seeking an entry-level Human Resources Assistant. The role provides day-to-day HR support, maintains records, supports onboarding and offboarding, and coordinates recruitment activities while upholding confidentiality and professional communication with employees and managers.

The position requires detail orientation, organizational skills, and comfort with data entry and HR systems.