Senior System Administrator

Job Description Senior System Administrator (TS/SCI with Polygraph) Location: Annapolis Junction, Maryland Innovative System Solutions (ISSI) is seeking a Senior System Administrator with an active TS/SCI clearance with polygraph . This is an exciting opportunity for candidates seeking meaningful work in a collaborative, team-oriented environment. About the Role The Senior System Administrator will support the implementation, troubleshooting, and maintenance of Information Technology (IT) systems. This role is responsible for managing system infrastructure and ensuring reliable day-to-day operations across client, server, storage, and network environments. Key Responsibilities ProvideTier 1 (Help Desk) and Tier 2 (Escalation) support, including problemidentification, diagnosis, and resolution Supportescalation processes and communicate status updates to agency managementand internal stakeholders Maintaininvolvement in dispatch system and hardware issue resolution Configureand manage UNIX and Windows operating systems Install,troubleshoot, and maintain operating system software and networkcomponents Implementsystem enhancements to improve performance and reliability Monitordaily IT system operations, including servers, storage, networks, andmobile devices Performsystem capacity planning and resource optimization Developsystem engineering management and integration/test plans Providedetailed analysis and feedback for escalated issues Collaboratewith government personnel, program staff, and senior leadership Ensuretechnical integrity of systems engineering deliverables Requirements Qualifications Active TS/SCI clearance with polygraph (required) Minimum 10 years of experience as a System Administrator in programs ofsimilar scope and complexity Bachelor'sdegree in a technical discipline from an accredited college or university Substitutions: 5additional years of SA experience may substitute for a degree 5additional years of Systems Engineering experience may also substitute Strongexperience troubleshooting complex IT systems Experiencewith UNIX and Windows system administration Abilityto manage daily IT operations and provide user support Salary Range 170-175,000 The salary range provided is a general guideline. ISSI considers several factors when determining compensation, including the role's responsibilities, candidate experience, education, skills, and current market conditions. Benefits What We Offer ISSI provides a highly competitive benefits package, including: 401(k)with matching contributions Health,Dental, and Vision coverage Prescriptiondrug plans Employer-fundedHealth Savings Account (HSA) Mentalhealth resources Lifeand AD&D insurance Short-Termand Long-Term Disability coverage Businesstravel and expense reimbursement Employeereferral program with cash bonuses Employeerecognition program Tuitionand training reimbursement Who Is ISSI? ISSI is a growing management and technology consulting firm specializing in systems and software solutions. Our team is dedicated to delivering exceptional results for both our clients and employees. Since our inception, we have focused on developing innovative solutions that help organizations achieve their goals. We pride ourselves on collaboration, technical excellence, and staying at the forefront of emerging technologies. Equal Opportunity Employer ISSI is proud to be an Equal Opportunity Employer. All employment decisions-including hiring, promotion, discipline, and termination, are based on merit and business needs. We do not discriminate on the basis of race, color, religion, age, genetic information, or any other protected status under federal, state, or local law. Innovative Systems and Solutions Ltd