Staff Augmentation: Senior Infrastructure Engineer

Ampcus, Inc; Waltham (MA); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Ampcus Inc. is seeking a Senior Infrastructure Engineer to provide operational support, administration, and knowledge transfer within a Microsoft-centric environment in Waltham, MA. The role emphasizes hands-on AD, Windows Server, Microsoft 365, and Exchange Online, with a focus on uptime and reliability.

You will work closely with customer SMEs and internal teams, handling migrations, onboarding, documentation, and incident management in a hybrid onsite model.

Qualifications

• 7+ years of experience in Infrastructure Operations.
• Strong hands-on Active Directory administration.
• Windows Server 2016/2019/2022 administration.
• Microsoft 365 administration.
• Exchange Online administration.
• Group Policy management.
• DNS/DHCP and networking fundamentals.
• VMware and/or Hyper-V experience.
• Incident and problem management experience.
• PowerShell scripting experience.
• Strong troubleshooting and break/fix skills.

Responsibilities

• Administer and support Active Directory infrastructure.
• Manage user provisioning, Group Policy, security groups, and access controls.
• Provide Microsoft 365 administration and technical support.
• Support Exchange Online mailbox administration.
• Perform Windows Server administration, troubleshooting, and break/fix activities.
• Monitor server health and system performance and respond to operational incidents.
• Provide infrastructure-level support for SQL Server environments.
• Collaborate with application owners, technical teams, and business stakeholders.
• Assist with infrastructure migrations, service transitions, and onboarding activities.
• Develop and maintain operational procedures and technical documentation.
• Support knowledge-transfer activities with internal teams and customer SMEs.
• Provide onsite support during onboarding and transition phases.

Skills

Active Directory

Windows Server

Microsoft 365

Exchange Online

Group Policy

DNS/DHCP

VMware

Hyper-V

PowerShell

Incident management

Troubleshooting

Education

ITIL Foundation certification

Tools

VMware

Hyper-V

Job description

Job Title: Staff Augmentation: Senior Infrastructure Engineer

Ampcus Inc. is a certified global provider of a broad range of Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented Team.

Location(s): Waltham, MA

Position Summary

We are seeking a Senior Infrastructure Engineer to provide operational support, administration, troubleshooting, and knowledge transfer within a Microsoft-centric infrastructure environment. The resource will work closely with customer subject matter experts and support the transition of services from existing providers.

Key Responsibilities

• Administer and support Active Directory infrastructure.
• Manage user provisioning, Group Policy, security groups, and access controls.
• Provide Microsoft 365 administration and technical support.
• Support Exchange Online mailbox administration.
• Perform Windows Server administration, troubleshooting, and break/fix activities.
• Monitor server health and system performance and respond to operational incidents.
• Provide infrastructure-level support for SQL Server environments.
• Collaborate with application owners, technical teams, and business stakeholders.
• Assist with infrastructure migrations, service transitions, and onboarding activities.
• Develop and maintain operational procedures and technical documentation.
• Support knowledge-transfer activities with internal teams and customer SMEs.
• Provide onsite support during onboarding and transition phases.

Required Qualifications

• 7+ years of experience in Infrastructure Operations.
• Strong hands-on Active Directory administration experience.
• Strong Windows Server 2016/2019/2022 administration experience.
• Microsoft 365 administration experience.
• Exchange Online administration experience.
• Hands-on Group Policy management experience.
• Strong understanding of DNS, DHCP, and Windows networking fundamentals.
• Experience administering VMware and/or Hyper‑V environments.
• Experience with incident and problem management.
• PowerShell scripting experience.
• Strong troubleshooting and break/fix skills.

Preferred Qualifications

• Azure administration experience.
• Experience providing infrastructure support for SQL Server.
• Knowledge of Identity and Access Management (IAM).
• Experience supporting healthcare or insurance environments.
• ITIL Foundation certification.

Soft Skills

• Strong verbal and written communication skills.
• Comfortable working directly with customer SMEs and technical stakeholders.
• Strong documentation and knowledge-transfer capabilities.
• Ability to work independently in a small‑team environment.
• Strong analytical and problem‑solving skills.
• Ability to manage multiple priorities in an operational support environment.

Work Location

Waltham, MA. This is an onsite/hybrid position. Candidates must be local to the area or able to reliably commute to the Waltham location when onsite presence is required.

Ampcus is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veterans or individuals with disabilities.