Senior Systems Administrator

OBJECTIVE:Responsible for ensuring the smooth operation, security, and reliability of our organization’s IT operating system environment and infrastructure. This includes managing servers, hardware, and software, as well as providing technical support for helpdesk and users.ESSENTIAL DUTIES/RESPONSIBILITIES:1.Managing routine morning checks of systems and environment and provide any subsequent remediation.2.Install, configure, and maintain Microsoft Windows servers (both physical and virtual) to ensure uptime and performance.3.Install, configure, and maintain Linux, mainly Red Hat Enterprise Linux, servers (both physical and virtual) to ensure uptime and performance.4.Perform routine system updates, patches, and backups.5.Run tenable reports and remediate Server vulnerabilities based on results.6.Manage Active Directory environment in Production and Test.7.Manage virtual environment using VMWare’s vSphere and ESXI.8.Develop, support, and troubleshoot scripts written in Microsoft PowerShell.9.Manage SCCM site, application deployments, scripts, and task sequences.10.Implement group policy to ensure compliance with industry regulations, security standards, and organization’s IT policies.11.Perform Annual reviews of IT infrastructure systems to verify integrity and compliance.12.Develop and test disaster recovery plans to minimize downtime in case of system failures or disasters.13.Collaborate with other IT professionals and departments to ensure seamless IT operations.14.Patriciate in IT projects and initiatives.15.Maintain accurate documentation of system configurations, procedures, and troubleshooting guides. Along with recording and tracking changes made to the IT infrastructure environment.16.Assist in ADFS and SSO implementation as needed.17.Configure and deploy certificate templates.18.Other duties as assigned.Less that 5% TravelEDUCATION, LICENSE, CERTIFICATION, and EXPERIENCEMinimum education, licenses, certifications (if any) and experience needed to perform the essential duties of this position.EducationBachelor’s degree in computer science, engineering, or related scientific field. Experience in lieu of education.ExperienceMinimum 9 years’ experience.LicensesNo licensure required.CertificationsNo professional certification requiredNo clearance requirement but the contract and/or the site requires US Citizenship to be approved for access. (includes NACI / T1, MRPT, CAC):Must be able to obtain and maintain facility credentials/authorization. Note: US Citizenship is required for facility credentials/authorization at this work location.REQUIRED SCREENINGSAll items below must be listed on the job descriptions1.Drug Screen2.Physical Assessment (if applicable)3.Background Check (Criminal, Civil, Educational, Previous Employment, etc.)4.Driver Record Screen (for positions requiring on-the-job-driving)REQUIRED SKILLS/ABILITIES:This section is job specific skills/abilities that employee needs to have to perform the duties/functions of their job.1.Ability to manage an Active Directory environment.2.Ability to manage Red Hat Enterprise Linux Servers.3.Ability to manage Microsoft Windows Server 2016, 2019, 2022 Servers.4.Ability to manage Microsoft Endpoint Configuration Manager (SCCM).5.Powershell scripting skills.6.Ability to Manage Group Policy.7.Ability to manage VMware vSphere and ESXI.8.Ability to run/analyze reports from Tenable.sc.9.Ability to manage Windows Server Update Services (WSUS).10.Ability to manage DHCP Server.11.Ability to manage Microsoft Certificate Authority templates.12.Understanding of Firewalls and ability to manage Windows Firewall.13.Basic ADFS skills.14.Basic IIS skills.15.Basic Kerberos skills.16.Excellent troubleshooting/problem solving skills.17.Excellent communications skills.18.Excellent organizational skills.19.Excellent Customer Service skills.20.ability to work autonomously.21.Ability to adapt to new technologies, skillsets and to learn quickly.Successfully execute the LM mission safely through a disciplined culture of organizational excellence.1.Safety – The foundation of everything we do.2.Teamwork – Leading with trust, open communication, and collaboration.3.Quality – Striving to exceed expectations.4.Ownership – Each of us has the responsibility to contribute and be accountable.ESSENTIAL PHYSICAL REQUIREMENTS:Aligned with Fit-For-Duty evaluation requirements.Physical Activities:Medium work: Work involves moving objects by exerting 20 to 50 pounds of force occasionally, or 10 to 25 pounds of force frequently, or an above-negligible amount and up to 10 pounds constantly. Physical demand requirements are in excess of those for light work.Rate:$109,704.24 - $138,899.72SUPERVISORY RESPONSIBILITIES:This position does not require any supervisor responsibilities.EMPLOYMENT-AT-WILL:Employment is at will, unless prohibited by local and/or state laws.Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, religion, color, sex, gender, national origin, age, United States military veteran’s status, ancestry, sexual orientation, gender identity, marital status, family structure, medical condition including genetic characteristics or information, veteran status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal EEO laws and supplemental language at EEO including Disability/Protected Veterans (https://www.dol.gov/agencies/ofccp/posters) and Labor Laws Posters (https://protect-us.mimecast.com/s/MI5TC2kqOqsOBPMVfnZ32U) .