Senior Technician (Digital Infrastructure)

DEFTEC Corporation • Chesapeake, VA

1d • Onsite

About The Position

DEFTEC delivers mission critical solutions through skillfully delivered services and innovative products. We are inspired by the critical missions of our clients, and we are driven to provide the most effective solutions to execute their missions, operational challenges, and requirements. Our dedicated, experienced, and talented employees work closely with our clients to ensure the delivery of exceptional services and products.
Position Overview
The Senior Technician (Digital Infrastructure) serves as a critical system administrator providing comprehensive support for NU, NR, and NS CIS systems within the CSU Norfolk area of responsibility. This role requires advanced technical expertise in enterprise computing services, including Windows and Linux system administration, virtualization technologies, and Active Directory management. The position supports mission-critical digital infrastructure operations, provides tier 2 technical support, and ensures optimal system performance and security across the NATO enterprise environment. This is a full-time, on-site contract position from March 16, 2026 through December 31, 2026.

Requirements

• The candidate must have a currently active NATO SECRET security clearance;
• Higher vocational training in a relevant discipline with 2 years post-related experience, OR a secondary educational qualification with 4 years post-related experience;
• Minimum 2 years' practical, hands-on experience supporting core enterprise computing services:
• System Administration on a large computer network;
• Windows & Linux Operating Systems;
• Active Directory & Group Policy Management;
• Virtualization of servers and desktops;
• Storage Area Networks (SANs);
• Data Backup systems;
• Use of scripting to automate tasks;
• Large scale system management tools, such as MCM (Microsoft Configuration Manager);
• ITIL Problem Management.
• A thorough knowledge of English, both written and spoken, is essential.

Nice To Haves

• University Bachelor's degree in a CIS related subject;
• Active certifications covering CIS related topics from recognized & accredited organizations;
• Practical experience in the area of cybersecurity;
• Comprehensive knowledge of the principles of computer and communications security, networking, and the vulnerabilities of modern operating systems and applications;
• ITIL certification and experience in applying ITIL Change Management and/or Service Asset and Configuration Management processes;
• Prior experience working in an international environment comprising both military and civilian elements;
• Knowledge of NATO responsibilities and organization, including ACO and ACT.

Responsibilities

• Accomplish system administrator duties for NU, NR and NS CIS systems in the CSU AoGR;
• Maintain and update VMware Virtual Environment;
• Analyze and implement Microsoft Active Directory changes to meet user or operational requirements;
• Analyze and update Microsoft & Linux policies for system optimization and security;
• Maintain Physical Server Hardware in local Data Centre;
• Implement and test new software versions and patches.
• Accomplish server/client hardware and software troubleshooting actions;
• Provide assistance with fault resolution and document actions in accordance with Incident Management procedures;
• Provide status updates for assigned requests using ITSM Service Desk Software;
• Follow-up with users on completed requests prior to closing.
• Write PowerShell commands and scripts to automate system administration tasks;
• Develop and maintain Standard Operating Procedures for routine system administration duties.
• Provide collaboration and assistance to other work sections within Service Operations Branch in support of mission requirements;
• Deputize for higher grade staff as required;
• Perform other duties as may be required;
• Must be able to lift items up to 25 lbs.

Benefits

• DEFTEC offers a comprehensive whole-life benefits package that includes medical, dental, vision, holiday, paid time off, life insurance, short/long-term disability, and educational reimbursement.
• DEFTEC matches 401k contributions dollar for dollar up to 3% of the employee's income and an additional $0.50 for every dollar between 4-5% of the employee's income.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: High school or GED