17 jobs found

ManTech International seeks a System Administrator to support mission-critical national security systems within our Information Technology & Technical Support organization. In this role, you will manage and secure Windows and Linux servers, configure Active Directory, monitor performance, and resolve complex infrastructure issues. You'll implement patches, backups, and automation to ensure availability and compliance with federal standards. Collaborating closely with cybersecurity and network teams, you'll help protect sensitive environments while contributing to ManTech's culture of innovation, integrity, and respect for individual contributions.

Job Description Pay Range: $96,000 - $120,000 depending on relevant experience and qualifications MITER Brands is a residential window and door manufacturer that provides a leading portfolio of window and door brands for the new construction and replacement segments. MITER Brands, also known as Milgard, MI Windows & Doors and PGTI is one of the nation's largest suppliers of vinyl windows and patio doors, with plants across the country. The Systems Engineer is responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure. This individual participates in technical research and development to enable continuing innovation within the infrastructure. This individual ensures that system hardware, operating systems, software systems, and related infrastructure are continually up and running, and that system-wide backups and monitoring are accurate and complete. This position can be based in Tacoma, WA or North Venice, FL - Please note that there is a travel requirement listed below under Qualifications Responsibilities Life cycle maintenance of systemsPerform data backups and disaster recovery operationsProvide restores from backups when requestedProactively check backup health and completenessProactively monitor and respond to system wide healthAnalyze system logs and identify potential issues with computer systemsRecommend changes to improve systems and network configurations and determine hardware or software requirements related to such changesRespond to system outagesInstall and configure new hardware and softwareResponsibility for documenting the configuration of the systemTroubleshoot problems, both hardware and software, with systemsApply operating system updates, patches, and configuration changesPerform routine audits of systems and softwareResponsibilities sometimes require working evenings and weekends, sometimes with little advance notice Qualifications High School Diploma or GED required; Bachelor's degree in Computer/IT related field is desired7+ years' experience as a Server System Administrator in Windows, Unix, and/or Linux5+ years' networking experience, including firewalls, switches, and routersExperience in a role supporting multiple locations is desiredExperience with DNS, DHCP, Active DirectoryExperience managing MS Internet Information Server (IIS)Experience with MS SQL, Oracle or MySQL is desiredExperience with NetApp Storage is preferredExperience with VMware and Nutanix virtualization platforms, including deployment, administration, and optimization of enterprise infrastructure preferredStrong knowledge and understanding of business needs, with the ability to establish and maintain a high level of customer trust and confidenceExcellent problem-solving skillsExcellent verbal and written communication skills, including documentationStrong interpersonal skillsWilling to travel 10% - 25% Physical requirements Prolonged standing and periodically lifting, stretching and twistingProlonged sitting and terminal useMay be required to lift up to 50 lbs. periodicallyHand dexterity and strengthWork outside normal hours may be required, including some weekends as needed to support the needs of the business Work environment Work performed primarily indoors and in production type facility What We Offer At MITER Brands, we invest in your health, wealth, and wellness. Our comprehensive benefits package supports you and your eligible spouse/dependents while helping you achieve your personal and professional goals. We offer competitive pay, a 401(k) with company match, and generous paid time off to help you maintain a healthy work-life balance. Health & Wellness Three comprehensive medical plan optionsPrescription drug coverageDental insuranceVision insuranceTeladoc virtual healthcare servicesEmployee Assistance Program (EAP)Annual Wellness Clinic Financial Protection Company-paid Life InsuranceVoluntary Life InsuranceCompany-paid Short-Term DisabilityCompany-paid Long-Term DisabilitySupplemental Hospital Indemnity InsuranceCritical Illness InsuranceAccident Insurance Additional Benefits Paid Time Off (PTO) and paid holidays401(k) retirement plan with company matchTuition Reimbursement ProgramLegal InsuranceIdentity Theft ProtectionPet InsuranceTeam Member Discount Program MITER Brands, including MI Windows and Doors, Milgard, and PGT Innovations, is an Equal Opportunity Employer. We are committed to fostering an inclusive workplace and do not discriminate based on race, color, religion, sex, national origin, age, disability, veteran status, genetic information, sexual orientation, or any other protected status under applicable law. Work Authorization and Sponsorship Disclosure: The Company does not offer employer sponsorship at this time. Therefore, candidates must provide truthful and complete information regarding their eligibility to work in the and any current or future need for employment sponsorship. Misrepresentation regarding work authorization or sponsorship need at any stage of the hiring process will result in disqualification from consideration, rescission of an employment offer, or termination of employment.

Systems Engineer II Collaboration & Endpoint Engineering We are Lennar Lennar is one of the nation's leading homebuilders, dedicated to making an impact and creating an extraordinary experience for their Homeowners, Communities, and Associates by building quality homes and providing exceptional customer service. Lennar has been recognized as a Fortune 500 company and consistently ranked among the top homebuilders in the United States. A Career that Empowers You to Build Your Future The Collaboration & Endpoint Engineer supports the planning, implementation, administration, and day-to-day operations of enterprise collaboration platforms, endpoint management systems, and virtual desktop infrastructure (VDI) serving over 12,000 endpoints across Windows, macOS, iOS, Android, and other devices. The role serves as a technical contributor and subject matter expert, ensuring seamless communication, security, and productivity across the enterprise. Your Responsibilities on the Team Collaboration & Productivity Platforms Administer and maintain enterprise collaboration platforms - including Microsoft Teams, Exchange Online, SharePoint, OneDrive, Purview, Zoom, and Box - ensuring availability, performance, security, and compliance. Support integration projects with IT and business stakeholders to streamline communication workflows. Develop and maintain system documentation, runbooks, and standard operating procedures. Identity & Directory Services Administer Active Directory and Microsoft Entra ID, including Group Policy, OU structures, hybrid identity, Conditional Access, RBAC, and directory synchronization via Entra Connect. Support identity governance initiatives including access reviews and joiner/mover/leaver lifecycle workflows. Troubleshoot identity and authentication issues - SSO, MFA, and federation - across hybrid environments. Endpoint Engineering & Management Administer Microsoft Intune for device management across Windows, macOS, iOS, and Android, including enrollment, configuration policies, app deployment, and Windows Autopilot provisioning. Support Virtual Desktop Infrastructure (VDI) environments including Azure Virtual Desktop (AVD), Citrix, or VMware Horizon for remote and hybrid workers. Maintain endpoint security baselines, CIS benchmarks, and hardening standards in partnership with security teams; enforce Microsoft Defender for Endpoint, BitLocker, and DLP policies. Manage endpoint patching and software updates using Intune, MECM/SCCM, or equivalent tooling to ensure timely vulnerability remediation. Support application packaging, deployment, and lifecycle for enterprise endpoint software, including scripting using PowerShell or similar tools. Monitor endpoint health, compliance posture, and fleet performance using telemetry and reporting. Support BYOD and corporate device programs, including conditional access enforcement and data separation policies via Intune App Protection Policies. AI Tools & Cross-Functional Support Assist with administration of enterprise AI tools including Claude (Anthropic), ChatGPT and CoPilot Enterprise, supporting licensing, configuration, user provisioning, and policy management. Partner with network, application, governance and security teams to support business requirements and enterprise architecture standards. Research emerging technologies across collaboration, AI, identity, and endpoint management and share findings with the team. Requirements Bachelor's degree in Computer Science, Information Technology, or related field - or equivalent work experience. 3-5+ years of experience in systems engineering or IT administration in enterprise environments. Hands-on experience administering Microsoft 365 platforms, including Teams, Exchange Online, SharePoint Online, Purview, Zoom, and Box. Experience with Microsoft Intune / Microsoft Endpoint Manager for MDM/MAM, including device enrollment, compliance policies, configuration profiles, and app deployment across Windows, macOS, iOS, and Android. Familiarity with VDI platforms such as Azure Virtual Desktop (AVD), Citrix, or VMware Horizon. Scripting and automation experience using PowerShell, Python, or similar tools, including endpoint provisioning and application management. Familiarity with endpoint security tooling including Microsoft Defender for Endpoint, BitLocker, and Intune-enforced compliance policies. Working knowledge of Active Directory and Microsoft Entra ID, including GPO management, hybrid identity, and Conditional Access. Relevant certifications a plus: Microsoft 365 Certified (MD-102), Azure Administrator (AZ-104), or equivalent. Strong troubleshooting and problem-solving skills across collaboration and endpoint environments. Experience with ServiceNow or similar ITSM platforms. Clear written and verbal communication skills, with ability to explain technical concepts to non-technical stakeholders. Life at Lennar At Lennar, we are committed to fostering a supportive and enriching environment for our Associates, offering a comprehensive array of benefits designed to enhance their well-being and professional growth. Our Associates have access to robust health insurance plans, including Medical, Dental, and Vision coverage, ensuring their health needs are well taken care of. Our 401(k) Retirement Plan, complete with a $1 for $1 Company Match up to 5%, helps secure their financial future, while Paid Parental Leave and an Associate Assistance Plan provide essential support during life's critical moments. To further support our Associates, we provide an Education Assistance Program and up to $30,000 in Adoption Assistance, underscoring our commitment to their diverse needs and aspirations. From the moment of hire, they can enjoy up to three weeks of vacation annually, alongside generous Holiday, Sick Leave, and Personal Day policies. Additionally, we offer a New Hire Referral Bonus Program, significant Home Purchase Discounts, and unique opportunities such as the Everyone's Included Day. At Lennar, we believe in investing in our Associates, empowering them to thrive both personally and professionally. Lennar Associates will have access to these benefits as outlined by Lennar's policies and applicable plan terms. Visit to view our suite of benefits. Join the fun and follow us on social media to see what's happening at our company, and don't forget to connect with us on Lennar: Overview LinkedIn for the latest job opportunities. Lennar is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws.

Overview: SimVentions is 100% employee-owned and proudly ranked among Virginia's Best Places to Work year after year! We are looking for an enterprising System Administrator to develop and implement Windows- and Linux-based engineering solutions within a government software hosting facility. This position requires full-time on-site presence at the NAVAIR base in PAX River, MD. This position is future funded and not expected to begin before September 1, 2026 Clearance: An ACTIVE Secret Clearance is required for this position. Candidates must be able to obtain a Top Secret clearance after beginning this work. Applicants selected will be subject to a security investigation and must meet eligibility requirements for access to classified information. US Citizenship is required to obtain a clearance. Requirements: At least three years experience performing many of the responsibilities listed in this job requisition. Experience with evaluating Risk Management Framework (RMF) compliance including performing Security Technical Implementation Guide (STIG) and Assured Compliance Assessment Solution (ACAS) scanning. A certification in a Windows or Linux operating environment. Responsibilities: Candidates for this position will: Provide engineering solutions for various and unique problem sets and customers in a government software hosting facility. Deploy and maintain physical and virtual hardware infrastructure, to include virtual machines and containers. Perform routine maintenance and configuration changes to various physical and virtual hosts. Perform installation, configuration and troubleshooting of hardware and software issues on servers, workstations, and IT equipment. Maintain system backups and disaster recovery plans. Manage user accounts and permissions. Deploy and maintain software applications. Troubleshoot technical issues. Maintain documentation to include knowledge base, incident response actions, system configurations, and other information related to system administration. Provide technical support to customers, ranging from resolving technical issues to providing guidance and best-practices. Secure information systems and applications to current DoD guidance Maintain configuration and security posture of information systems through continuous monitoring and routine security events/reporting. Participate in project planning using Agile methodology. Provide networking support to on-premises infrastructure. Preferred Skills and Experience: Active Security+ certification VMWare Virtual Networking System Backups Networking Containers and containerization tools (e.g. Docker) Active Directory Education: BS in a technical discipline preferred Compensation: Compensation at SimVentions is determined by a number of factors, including, but not limited to, the candidate's experience, education, training, security clearance, work location, skills, knowledge, and competencies, as well as alignment with our corporate compensation plan and contract specific requirements. The projected annual compensation range for this position is $75,000 -$150,000 (USD). This estimate reflects the standard salary range for this position and is just one component of the total compensation package that SimVentions offers. Benefits: At SimVentions, we're committed to supporting the total well-being of our employees and their families. Our benefit offerings include comprehensive health and welfare plans to serve a variety of needs. We offer: Medical, dental, vision, and prescription drug coverage Employee Stock Ownership Plan (ESOP) Competitive 401(k) programs Retirement and Financial Counselors Health Savings and Health Reimbursement Accounts Flexible Spending Accounts Life insurance, short- & long-term disability Continuing Education Assistance Paid Time Off, Paid Holidays, Paid Leave (e.g., Maternity, Paternity, Jury Duty, Bereavement, Military) Third Party Employee Assistance Program that offers emotional and lifestyle well-being services, to include free counseling Supplemental Benefit Program Why Work for SimVentions?: SimVentions is about more than just being a place to work with other growth-orientated technically exceptional experts. It's also a fun place to work. Our family-friendly atmosphere encourages our employee-owners to imagine, create, explore, discover, and do great things together. Support Our Warfighters SimVentions is a proud supporter of the U.S. military, and we take pride in our ability to provide relevant, game-changing solutions to our armed men and women around the world. Drive Customer Success We deliver innovative products and solutions that go beyond the expected. This means you can expect to work with a team that will allow you to grow, have a voice, and make an impact. Get Involved in Giving Back We believe a well-rounded company starts with well-rounded employees, which is why we offer diverse service opportunities for our team throughout the year. Build Innovative Technology SimVentions takes pride in its innovative and cutting-edge technology, so you can be sure that whatever project you work on, you will be having a direct impact on our customer's success. Work with Brilliant People We don't just hire the smartest people; we seek experienced, creative individuals who are passionate about their work and thrive in our unique culture. Create Meaningful Solutions We are trusted partners with our customers and are provided challenging and meaningful requirements to help them solve. Employees who join SimVentions will enjoy additional perks like: Employee Ownership: Work with the best and help build YOUR company! Family focus: Work for a team that recognizes the importance of family time. Culture: Add to our culture of technical excellence and collaboration. Dress code: Business casual, we like to be comfortable while we work. Resources: Excellent facilities, tools, and training opportunities to grow in your field. Open communication: Work in an environment where your voice matters. Corporate Fellowship: Opportunities to participate in company sports teams and employee-led interest groups for personal and professional development. Employee Appreciation: Multiple corporate events throughout the year, including Holiday Events, Company Picnic, Imagineering Day, and more. Founding Partner of the FredNats Baseball team: Equitable distribution of tickets for every home game to be enjoyed by our employee-owners and their families from our private suite. Food: We have a lot of food around here! FTAC

ManTech International seeks a Windows Server Administrator to support critical national security missions. In this role, you will install, configure, secure, and maintain Windows servers and related services in enterprise and classified environments. Responsibilities include Active Directory administration, Group Policy management, patching, backup and recovery, performance monitoring, and troubleshooting complex issues. You will automate routine tasks with PowerShell, support virtualization platforms, document configurations, and collaborate with cyber and systems engineering teams to ensure system availability, compliance, and mission readiness while upholding strict security standards.

Client Trainer Overview & Purpose The Client Trainer is responsible for delivering exceptional client education and support to maximize customer satisfaction, product adoption, and retention. This role serves as a key liaison between clients, sales, operations, and technical teams, ensuring customers receive effective training on office technology solutions and related software applications. The Client Trainer helps drive market growth by empowering clients to fully utilize the company's products and services. Essential Functions Client Training & Education Coordinate with Sales Representatives, Operations, and the Help Desk to schedule client training appointments as needed.Travel throughout a multi-state territory using a personal vehicle to conduct onsite and remote training sessions.Deliver comprehensive training to clients before, during, and after implementation of office technology solutions and related services.Demonstrate product features, functionality, and benefits, emphasizing practical applications and best practices.Instruct end users, administrators, and other stakeholders on the proper operation and maintenance of equipment and software solutions.Develop, maintain, and update training materials, user guides, handouts, presentations, and other instructional resources.Assess client training needs and tailor training programs to meet individual customer requirements. Technical Support & Product Expertise Maintain a thorough understanding of all products, software applications, and services offered by the company.Provide support for software applications associated with company products and assist clients with application usage and troubleshooting.Assist Network Engineers and technical staff with the installation and deployment of multifunctional network products as needed.Investigate, troubleshoot, and resolve client issues, escalating concerns when appropriate.Serve as a subject matter expert for both clients and internal team members regarding product functionality and software capabilities. Internal Training & Collaboration Conduct periodic training sessions for Sales Representatives and other employees on software applications, new products, features, and industry developments.Collaborate with Sales, Service, Operations, and Technical teams to ensure a seamless customer experience.Provide feedback to management regarding client training needs, product performance, and opportunities for process improvement. Business Development & Representation Represent the company professionally during client interactions, trade shows, industry events, and company meetings.Support efforts to increase client satisfaction, retention, and market share through exceptional service and training.Perform other duties and special projects as assigned. Competencies Technical Competencies Proficiency with Microsoft Office Suite, Windows and Apple operating systems, presentation software, and instructional technologies.Ability to learn and effectively train others on hardware, software, and network-connected office technology solutions.Strong troubleshooting and problem-solving skills. Communication & Training Skills Excellent verbal, written, and presentation skills.Ability to communicate technical information clearly to audiences with varying levels of technical expertise.Strong facilitation and classroom training skills, both in-person and virtual. Organizational Skills Excellent time management and scheduling abilities.Ability to prioritize multiple assignments and manage a territory-based training schedule.Strong attention to detail and organizational skills while maintaining flexibility in a dynamic environment. Professional Competencies Customer-focused mindset with a commitment to delivering exceptional service.Ability to work independently with minimal supervision while maintaining strong collaboration with team members.Strong interpersonal skills and ability to build positive relationships with clients and colleagues. Qualifications High school diploma or equivalent required; associate's or bachelor's degree preferred.Previous experience in training, customer education, technical support, sales support, or related field preferred.Valid driver's license and reliable transportation required.Ability to travel regularly throughout an assigned territory.Ability to lift and move equipment as needed. SUPERVISORY RESPONSIBILITY This position has no supervisory responsibility. WORK ENVIRONMENT The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. This job operates in a professional office environment. This role routinely uses standard office equipment such as computers, phones, photocopiers, filing cabinets and fax machines. While performing the duties of this job, the employee is occasionally exposed to outside weather conditions. The noise level in the work environment is usually moderate. PHYSICAL DEMANDS The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand and walk. The employee is occasionally required to sit; use hands to finger, handle, or feel; reach with hands and arms; and stoop, kneel, crouch, or crawl. The employee must occasionally lift and/or move up to 10 pounds. Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and ability to adjust focus. POSITION TYPE & EXPECTED HOURS OF WORK This is a full-time, non-exempt position. Days and hours of work are Monday through Friday, 8:00 a.m. to 5 p.m. EQUAL OPPORTUNITY EMPLOYER Modern Office Methods provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. 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. PI4668d6084f14-9150

Title Systems Administrator Department Information Technology (IT) Reports to Information Technology Manager SEE YOUR CAREER THROUGH A NEW LENS WITH RPO! RPO is a global leader in precision optics, optical components, and optical assemblies. We specialize in a full spectrum of products & services including - Design and Engineering, Systems Integration, Lens Assembly, Visible and Infrared Components, Glass and Plastic Molded Aspheres, and Thin Film Coating. As one of the fastest growing companies in Rochester, RPO offers exciting career paths and work on market-leading programs. See below one of many career opportunities to join the RPO team! Position Overview Rochester Precision Optics LLC. (RPO) is seeking an experienced Systems Administrator to support the day-to-day operation, stability, and continuous improvement of our enterprise infrastructure supporting approximately 300 users across both corporate and manufacturing operations. Our environment relies on someone who can confidently administer Windows Server, Active Directory, virtualization, and Microsoft 365 while also supporting the network infrastructure that connects it all. The ideal candidate has a strong systems administration foundation with hands-on experience supporting enterprise networking, including switches, firewalls, VLANs, VPNs, and wireless technologies. Working closely with the IT Manager, you'll play a key role in maintaining a secure, reliable, and high-performing IT environment while contributing to infrastructure modernization, cybersecurity initiatives, and strategic technology projects. This is an opportunity for someone who enjoys solving complex infrastructure challenges, takes ownership of their work, and wants to make a measurable impact across the organization. Key Responsibilities: Systems Administration & Infrastructure Management Administer and maintain Windows Server environments, Active Directory, Group Policy, DNS, DHCP, and core Microsoft infrastructure services. Support VMware or Hyper-V virtualization environments, server resources, storage systems, and enterprise backup solutions. Perform system maintenance including patching, upgrades, configuration changes, and troubleshooting. Support Microsoft 365 services including Exchange Online, Teams, and Entra ID. Maintain infrastructure documentation, system standards, and technical procedures. Network Infrastructure Support Support enterprise network infrastructure including switches, firewalls, VPNs, and wireless networks. Troubleshoot VLANs, routing, subnetting, network connectivity, and security controls. Assist with network upgrades, infrastructure expansion projects, and technology improvements. Support network-connected systems including VoIP, security systems, and other enterprise technologies. Security & Operational Support Assist with infrastructure security initiatives, including system hardening, vulnerability remediation, and cybersecurity best practices. Assist with compliance initiatives related to NIST 800-171 and CMMC 2.0. Serve as a Tier II/Tier III escalation resource for complex systems and infrastructure issues. Partner with the IT Manager on infrastructure projects, technology improvements, and long-term planning. Knowledge, Skills, and Abilities: Bachelor's degree in information technology, Computer Science, or a related field preferred, or equivalent combination of education and hands-on experience. 4+ years of experience supporting enterprise IT infrastructure in a Systems Administrator, Infrastructure Administrator, Network Administrator, or similar role. Strong experience administering Windows Server environments, Active Directory, Group Policy, DNS, and DHCP. Experience supporting Microsoft 365 environments, including Exchange Online, Teams, and Entra ID. Experience supporting virtualization platforms such as VMware or Hyper-V. Experience administering and troubleshooting enterprise network infrastructure, including switches, VLANs, firewalls, VPNs, and wireless technologies. Experience supporting enterprise backup solutions, such as Veeam, and disaster recovery. Familiarity with endpoint management, software deployment, and security tools. Strong troubleshooting and problem-solving skills with the ability to independently diagnose and resolve complex technical issues. Ability to effectively communicate technical information and collaborate with both technical and non-technical teams. Preferred Qualifications Experience with cybersecurity frameworks or compliance requirements such as NIST 800-171 or CMMC. Experience with Microsoft Intune, Endpoint Central, or similar endpoint management platforms. PowerShell scripting or automation experience. Experience supporting ERP systems, SQL Server environments, or other business-critical applications. Industry certifications such as Network+, Security+, Microsoft, VMware, or Cisco certifications are a plus! Additional Requirements: Pursuant to ITAR, EAR, and other export compliance laws and regulations, applicants for this position must be U.S. Persons as defined by U.S. law, i.e., U.S. citizens, lawful permanent residents ("Green Card" holders), persons granted refugee status or asylum status in the United States, or temporary residents granted amnesty. Compensation & Benefits: Competitive compensation package linked to your experience and performance. 401(k) with company match and Tuition Reimbursement opportunities. Health, dental, vision, HSA, & life insurance. Paid time off including vacation, sick time, and 11 paid company holidays Work Requirements & Physical Demands: This is an on-site, hands-on IT role supporting both corporate office and manufacturing operations. The Systems Administrator will work in a collaborative environment where technology directly supports critical business and production processes. The role requires regular interaction with computer systems, servers, network equipment, and end-user technology across the organization. Occasional movement throughout the facility may be required to support infrastructure, troubleshoot equipment, and assist with technology deployments. Physical requirements may include: Ability to sit, stand, and work at a computer for extended periods. Ability to walk throughout office and manufacturing areas. Ability to lift, carry, and install IT equipment such as computers, monitors, networking equipment, and related hardware (typically up to 50 lbs.). Ability to work in both office and manufacturing environments while following applicable safety requirements. Occasional after-hours support may be required for scheduled maintenance, upgrades, or critical infrastructure issues. Disclaimer: This job description reflects management's assignment of essential functions; it does not prescribe or restrict the tasks that may be assigned. The above statements are intended to describe the general nature and level of work being performed by people assigned to this classification. They are not to be construed as an exhaustive list of all responsibilities, duties, and skills required of personnel so classified. All personnel may be required to perform duties outside of their normal responsibilities from time to time, as needed. Rochester Precision Optics is committed to leveraging the talent of a diverse workforce to create great opportunities for our business and our people. EOE/AA/Race/Gender/Disability/Veteran In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States, and to complete This is a full-time, on-site position based at our West Henrietta, NY facility. The standard work schedule is Monday through Friday, 7:00 AM to 3:30 PM. Participation in an occasional rotating on-call schedule is required to provide after-hours support for critical infrastructure issues, planned maintenance, and emergency response as needed. Compensation details: 0 Yearly Salary PI01b5dba5-

Bell Ambulance seeks a Systems Administrator to support, monitor, and secure IT infrastructure for 24/7 emergency medical operations. You will manage Windows servers, user accounts, networks, and EMS-critical applications, ensuring high availability and data integrity. Responsibilities include troubleshooting hardware/software issues, maintaining backups, supporting endpoint devices, and assisting with EHR and dispatch systems. You'll collaborate with clinical and operations teams, document procedures, and help implement cybersecurity and compliance best practices in a fast-paced, mission-driven environment.

Rochester Precision Optics LLC is seeking a Systems Administrator to support the IT infrastructure powering advanced optical manufacturing and engineering operations. In this role, you will manage Windows and Linux servers, virtualization, storage, and core network services while ensuring high availability, security, and performance for production and design teams. You'll oversee user management, backups, and disaster recovery, implement cybersecurity best practices, and support ERP/MES and other critical manufacturing applications. Working in a collaborative, engineering-driven culture, you'll partner with optical, manufacturing, and quality teams to align systems with business needs, automate routine tasks, and continuously improve reliability and efficiency across our New York facility.

ManTech International seeks a System Administrator to support mission-critical national security systems within our Information Technology & Technical Support organization. In this role, you will manage and secure Windows and Linux servers, configure Active Directory, monitor performance, and resolve complex infrastructure issues. You'll implement patches, backups, and automation to ensure availability and compliance with federal standards. Collaborating closely with cybersecurity and network teams, you'll help protect sensitive environments while contributing to ManTech's culture of innovation, integrity, and respect for individual contributions.

Kaiser Permanente seeks a Systems Administrator IV to lead the design, implementation, and support of complex health systems infrastructure. You will manage Linux/Windows servers, virtualization, storage, and cloud-integrated environments supporting mission-critical clinical applications. Responsibilities include performance tuning, automation, backup and recovery, security hardening, and incident response. You will collaborate with cross-functional teams to ensure high availability, document standards, and mentor junior admins while driving continual improvement in a fast-paced, innovation-focused culture.

SimVentions, Inc. is seeking a System Administrator to support Defense & Aerospace programs within our IT & Cybersecurity team. In this role, you will install, configure, secure, and maintain Windows/Linux servers, networks, and cloud environments that enable mission-critical DoD systems. Responsibilities include managing AD, virtualization, backups, patching, and cybersecurity hardening using STIGs and RMF practices. You'll collaborate with engineers and cybersecurity professionals in a values-driven, family-like culture focused on integrity, teamwork, and national defense.

Kaiser Permanente is seeking a Systems Administrator III to support and optimize critical health systems within our IT & Software environment. This role manages server and cloud infrastructure, ensuring high availability, security, and compliance for clinical and business applications. You will perform system upgrades, automation, monitoring, and incident response while collaborating with cross-functional teams. The ideal candidate has strong experience with Windows/Linux administration, scripting, virtualization, networking, and healthcare data security standards in a fast-paced enterprise setting.

ManTech International seeks an Intermediate Systems Administrator to support mission-critical federal and national security programs. In this role, you will deploy, configure, and maintain secure Windows and Linux servers, ensuring high availability, performance, and compliance with DoD and federal standards. Responsibilities include system hardening, patching, user and access management, backup and recovery, and incident resolution. You will automate routine tasks, document configurations, and collaborate with cyber, network, and engineering teams in a mission-focused, learning-oriented environment.

ManTech International seeks a Windows Systems Administrator to support critical national security missions within our IT & Technical Support teams. You will install, configure, and maintain Windows servers and related services; manage Active Directory, Group Policy, and enterprise patching; monitor system performance and security; and troubleshoot complex issues in secure environments. Collaborate with cyber, engineering, and support teams to implement resilient, compliant solutions. Leverage ManTech's mission-focused, collaborative culture, robust training, and career-growth opportunities to advance your technical expertise while safeguarding U.S. defense and federal customers.

ManTech International seeks a System Administrator to support mission-critical national security systems within our Information Technology & Technical Support organization. In this role, you will manage and secure Windows and Linux servers, configure Active Directory, monitor performance, and resolve complex infrastructure issues. You'll implement patches, backups, and automation to ensure availability and compliance with federal standards. Collaborating closely with cybersecurity and network teams, you'll help protect sensitive environments while contributing to ManTech's culture of innovation, integrity, and respect for individual contributions.