IT Helpdesk / Tier 1

We are an employee-centric company that truly appreciates our team members and their value to our customers and the missions they support. We pride ourselves on being forward-leaning thinkers and fostering teams that are and continue to be technically proficient and technically capable across a comprehensive range of cyber mission areas. OneZero full-time employees receive an extremely competitive benefits package that includes health/dental/vision/life insurance plans, 401K with company matching, PTO & paid holidays, employee referral program, and educational assistance. Additional details can be found on our website at: Position Title: IT Helpdesk/ Tier 1Location: On Site Portsmouth, NHClearance: SecretPosition Summary:The Help Desk Technician provides first-level technical support to internal users and clients. This role is responsible for diagnosing and resolving hardware, software, and network-related issues in a timely and professional manner. The ideal candidate will have strong customer service skills, technical troubleshooting abilities, attention to detail, and a commitment to quality support.Key Responsibilities: Respond to user requests via phone, email, chat, or ticketing system.Diagnose and troubleshoot hardware, software, printer, and network issues.Escalate unresolved issues to the appropriate technical teams.Log all service requests, incidents, and changes in the ITSM/ticketing system.Assist in setting up and maintaining workstations, user accounts, and permissions.Provide support for Microsoft Office Suite, Windows OS, and remote tools.Follow standard operating procedures for problem resolution and escalation.Maintain knowledge base articles and end-user documentation.Support onboarding/offboarding processes including device setup and account configuration.Create and manage Active Directory user accounts, mailboxes, and security groups Required Qualifications: 1-3 years of experience in a help desk or technical support role.Strong knowledge of Windows 10/11, Office 365, and common desktop applications.Basic understanding of networking principles (TCP/IP, DNS, DHCP).Excellent communication and customer service skills.Ability to multitask and prioritize in a fast-paced environment.High school diploma or equivalent (Associate's or Bachelor's in IT-related field preferred).IT certifications (e.g., CompTIA A+, Network+, Microsoft MCP) a plus. Work Environment & Schedule:Shift: Monday to Friday on SiteOneZero Solutions, LLC is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access as a result of your disability.To request an accommodation, please contact us at or call (202) 987-2580.

Created: 2026-03-10