Job Description

Posted Thursday, August 13, 2026 at 5:00 AM GC&E Systems is seeking a Computer User Support Specialist-SME who will be responsible for providing first-level technical support and assistance to users within the CASTLE-NET program by responding to and resolving IT-related issues and handling service requests. Ensures customer satisfaction and compliance with CASTLE-NET and USACE IT policies and best practices. Primary Responsibilities and Essential Function Execute end-to-end infrastructure installations, from hardware deployment and cabling to post-install validation and production readiness Manage system lifecycle processes including initial configuration and decommissioning, ensuring compliance with security policies across 12+ servers Remediate critical security vulnerabilities, achieving 90% reduction in high-risk findings within 60 days Manage Active Directory user provisioning, group memberships, and security access controls integrated with Okta identity platform Implement automated PowerShell scripts integrated with the ServiceNow API, reducing manual administrative tasks. Candidate Requirements: SECRET Clearance with T3 Investigation Location: USACE Chicago District, Chicago, IL– This is not a remote position. Local candidates only. Required work authorization: United States Job Type: Full-time GC&E offers a competitive benefits package to include paid holidays, vacation, sick time, medical, dental, vision, flexible spending account, LTD & STD, company paid life insurance, 401(k) and tuition reimbursement. It is the policy of GC&E to provide equal opportunity in recruiting, hiring, training, and promoting individuals in all job categories without regard to race, color, religion, national origin, gender, age, disability, genetic information, veteran status, sexual orientation, gender identity, or any other protected class or category as may be defined by the federal, state, or local laws or regulations. We affirm that all compensation, benefits, company-sponsored training, educational assistance, social, and recreational programs are administered without regard to race, color, religion, national origin, gender, age, disability, genetic information, veteran status, sexual orientation, gender identity. It is our firm intent to support equal employment opportunity and affirmative action in keeping with applicable federal, state, and local laws and regulations. We are proud to be an EEO employer. We maintain a drug-free workplace and pre-employment drug testing and background checks are required. The information above has been designed to indicate the general nature and level of work performed by employees with the classification. It is not designed to contain or be interpreted as a comprehensive inventory of duties, responsibilities, and qualifications required of employees assigned to this position. Duties, responsibilities, and activities may change at any time with or without notice. #J-18808-Ljbffr

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