Senior Technician (Digital Infrastructure)

Senior Technician (Digital Infrastructure)

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.

Key Responsibilities:

System Administration and Infrastructure Management:

• 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.

Technical Support and Troubleshooting:

• 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.

Automation and Process Improvement:

• Write PowerShell commands and scripts to automate system administration tasks;
• Develop and maintain Standard Operating Procedures for routine system administration duties.

Collaboration and Additional 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.

Required Qualifications:

• 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.

Highly Desirable Qualifications:

• University Bachelors 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.

Language Requirements: A thorough knowledge of English both written and spoken is essential.

Special Working Conditions: Physical ability to lift equipment up to 25 lbs. Position requires 100% on-site presence at CSU Norfolk.

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 employees income and an additional $0.50 for every dollar between 4-5% of the employees income. The DEFTEC team comprises professionals who make a difference daily in crucial national security missions. Our leadership knows that this happens by employing a diverse team that is well taken care of. Our employees are our top priority making DEFTEC an ideal place to work.

Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. Please contact if you require reasonable accommodations.

DEFTEC is a Drug Free Workplace where post offer applicants and employees are subject to testing for marijuana cocaine opioids amphetamines PCP and alcohol when criteria is met as outlined in our policies.

AAP/EEO Statement

DEFTEC Corp is an Equal Opportunity and Affirmative Action Employer and prohibits discrimination and harassment of any type on the basis of actual or perceived race color national origin ancestry sex (including pregnancy childbirth breastfeeding and medical conditions related to pregnancy childbirth or breastfeeding) gender gender identity and gender expression religious creed disability (mental and physical) including HIV and AIDS medical condition (cancer and genetic characteristics) genetic information age marital status civil union status sexual orientation military and veteran status denial of family and medical care leave arrest record and/or any other characteristic(s) protected by federal state or local law.

This policy applies to all terms of employment including recruiting hiring placement promotion termination layoff recall transfer leaves of absence training compensation benefits employee activities and general treatment during employment.

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities duties or responsibilities that are required of the employee for this job. Duties responsibilities and activities may change at any time with or without notice.

C004627

Required Experience:

Senior IC