Linux System Administrator

Join our dynamic team at Aetos Systems Inc. as a Systems Administrator and Security Specialist. In this role, you will be responsible for maintaining the integrity and security of our systems, ensuring that our infrastructure remains robust and operational. You will manage user permissions, monitor system performance, and implement security protocols to safeguard sensitive information.Ideal candidates should possess a strong understanding of network security, server management, and cloud technologies. You will work closely with our IT team to develop and execute strategies for optimal system performance and security compliance.

Lendbuzz is seeking an IT System Administrator based in Boston, MA. This position plays a key role in managing and maintaining the company’s IT infrastructure, with an emphasis on system performance and security. Key Responsibilities Oversee daily operations of IT systems and networks Implement and support IT solutions that align with business requirements Troubleshoot technical issues and resolve incidents quickly Provide technical support to users across the organization Monitor system performance and maintain security standards What We Look For Attention to detail and a proactive approach in IT administration Interest in building skills and advancing within the IT field Ability to collaborate effectively with team members This role offers the opportunity to contribute directly to Lendbuzz’s technology operations and develop professionally within a supportive team environment.

Join our dynamic team at Ag Technologies as a System Administrator. In this role, you will be responsible for ensuring the stability, integrity, and security of our systems. You will work closely with various departments to support their technology needs and troubleshoot any issues that arise.Your expertise will help us maintain our high standards of system performance and security, making you a vital part of our team.

Kostal Group is seeking an IT Systems Administrator in Troy to support and maintain core IT systems. This position plays a key part in keeping technology running smoothly across the organization. Role overview This role centers on administering and optimizing IT systems. Daily work involves monitoring system performance, supporting users, and addressing technical issues to keep operations uninterrupted. What you will do Administer IT systems and infrastructure Optimize system performance and reliability Provide technical support to users Maintain critical system functions Location This position is based in Troy.

Key ResponsibilitiesVirtualization and Compute: Oversee VMware ESXi/vCenter, including HA/DRS, vMotion, patch management, performance optimization, and lifecycle management.Storage Management: Administer HPE Nimble storage arrays (iSCSI, initiator groups/CHAP, MPIO/ALUA, snapshots/replication, InfoSight); ensure integration with vSphere.Backup & Disaster Recovery: Manage Veeam Backup & Replication, including proxies, repositories/SOBR, immutability, SLA-based policy design, GFS retention, SureBackup/test restores, and recovery documentation.Microsoft 365 & Identity Management: Handle Exchange Online and mail flow (connectors, SPF/DKIM/DMARC, transport rules/anti-phishing), Teams Phone (queues, auto attendants, number porting/E911), and Entra ID (Conditional Access, MFA/passwordless, app SSO, PIM).Operating Systems: Administer Windows Server and Linux environments; perform patching, configuration hardening, and performance troubleshooting.Network & Security: Basic knowledge of switching/routing, VLANs, DHCP/DNS; implement FortiGate policy changes, manage VPNs, and utilize FortiManager for standardization; collaborate with the network team for campus resilience.Operational Management: Engage in monitoring, capacity planning, asset/license management, documentation/runbooks, change control, and vendor coordination (HPE, Microsoft, Fortinet, etc.).Ministry Collaboration: Partner closely with Rock RMS and campus teams to ensure reliable services for weekend experiences and midweek ministry.

North 40 Outfitters seeks an IT Systems Administrator based in Great Falls. This position plays a key role in keeping technology stable and responsive as the company grows. The administrator ensures systems remain reliable and supports daily operations by addressing technical needs as they come up. Role overview The IT Systems Administrator is responsible for maintaining the integrity and performance of IT systems. This includes monitoring system health, supporting upgrades, and working closely with others to address technical challenges. Key responsibilities Monitor and maintain the reliability of IT systems Collaborate with the team to plan and implement system upgrades Troubleshoot and resolve technical issues as needed Encourage effective IT management practices within the organization

SUMMARY:Oversee the deployment, upkeep, operation, and strategic planning of enterprise technical systems, which include: - Network Servers & Data Storage Devices - Network Operating Systems & Enterprise Imaging - Email System & Data Access Security - Data Backup & Recovery SystemsProvide technical guidance in capacity planning, design of functional and technical systems, and solving intricate problems.Manage testing, implementation, maintenance, documentation, and the development of operational policies and procedures.Execute design, planning, and implementation of enterprise server and network systems.Assist in troubleshooting advanced issues related to system failures and challenges.Independently resolve complex issues promptly to prevent costly downtime and service interruptions.Work collaboratively with district stakeholders to develop Service Level Agreements (SLAs) that meet district objectives.Design and establish infrastructure in line with SLA requirements.ESSENTIAL DUTIES AND RESPONSIBILITIES:Analyze, plan, implement, maintain, and troubleshoot all centralized District Data Center Infrastructure, including: servers, storage, networking, HRIS, Mail, Web, Databases, Payroll & Accounting, and specialized servers for Business Services, Cluster Servers, Update Servers, Security Patch Servers, and the complete VMWare Server Farm and Infrastructure.Resolve intricate network and server technical issues escalated from System Administrators and Technical Analysts.Research, design, implement, and maintain District-wide Active Directory, replication, and network access hierarchy, including remote sites. Additionally, manage Domain Name Services (DNS), Dynamic Host Configuration Protocol (DHCP), Windows Internet Naming Services (WINS), and RADIUS. Manage multiple Organizational Units (OUs) and Domains.Design, implement, and manage enterprise security measures to prevent unauthorized or inappropriate use of Information Technology resources and the data therein.Create written, electronic, and physical means to enforce policies and practices that safeguard public, District, and individual rights.Provide technical expertise and make enterprise recommendations regarding standards, security, projects, implementations, and roll-outs, etc.Act as an organizational liaison with vendors to stay informed about new systems/products and their optimal utilization.Develop, test, implement, and provide training on District-wide server and workstation operations.

We are urgently seeking a skilled Linux Systems Administrator to join our team in Philadelphia, PA. The successful candidate will play a critical role in supporting project teams during the Initiation and Planning phases of our standard Project Management Methodology. Your expertise will be essential in defining needs, benefits, and technical strategies, as well as engaging in research and development throughout the project life-cycle. You'll provide technical analysis and design support and work closely with operations staff to execute, test, and roll out innovative solutions.This role is pivotal in ensuring a smooth transition from development to production staff by performing essential operational activities. You will be accountable for managing Linux systems that support Xfinity WiFi servers and services, which includes system administration engineering, provisioning, operations, support, and ongoing maintenance and development for continuous innovation.

About UsFluxergy is a pioneering in vitro diagnostics firm at the forefront of laboratory testing innovation. We are proud to be developing the world's first multi-modal point-of-care platform that integrates molecular, clinical chemistry, immunoassay, and hematology testing into a unified system.Our cutting-edge platform serves various sectors, including clinical, veterinary, and food safety industries. We are on the lookout for self-driven problem solvers eager to revolutionize traditional laboratory infrastructures.At Fluxergy, our core identity is rooted in engineering excellence. We value critical thinking and pragmatic problem-solving, approaching challenges from a modular and systemic perspective. Transparent communication, adaptability to dynamic scenarios, and a willingness to explore new frontiers are integral to our collective success.To learn more about our product, visit: https://vimeo.com/176673475About the RoleWe are seeking an IT Systems Administrator who is poised to operate at an advanced technical level while maintaining close engagement with real-world support and systems. This role is ideal for candidates who have transitioned from traditional IT support to systems administration and infrastructure management.In this role, you will spearhead complex technical projects, enhance security and reliability across our systems, and influence the scalability of our IT infrastructure as the company expands. Working within a collaborative team environment, you will have the opportunity to significantly impact Fluxergy's IT landscape, serving as the primary expert for the support team and providing mentorship and strategic guidance on critical issues and projects.Team Culture:- Positive- Proactive- Accountable- Team-oriented

About UsAetos Systems, Inc., established in early 2007, is dedicated to delivering an exceptional work environment. Our employees are the cornerstone of our success, and our leadership is committed to empowering and supporting their career growth while fostering community contributions. We pride ourselves on our people-centric culture, which ensures that our staff can provide outstanding service and innovative solutions to our clients, effectively addressing real-world business challenges. We continually strive to uphold our values and do what is right.Imagine being part of a dynamic small business where your voice matters, your contributions are valued, and you can pursue your passion within a supportive framework. This is your chance to join us!Position OverviewWe are on the lookout for an accomplished and dedicated Systems Administrator to enhance our IT team. The ideal candidate will oversee the management and upkeep of our IT infrastructure, ensuring peak performance across various subsystems. This hands-on position demands substantial technical expertise, robust problem-solving capabilities, and the ability to spearhead projects while working autonomously in a task-oriented, deadline-driven environment.

Join Artech Information Systems LLC as a System Administrator, where you will play a critical role in maintaining and improving our IT infrastructure. You will be responsible for managing servers, ensuring network security, and providing technical support to our team. Your expertise will help us achieve operational excellence and deliver top-notch services to our clients.

For over 50 years, ENSCO has been at the forefront of providing innovative engineering, scientific, and advanced technological solutions to both government and private sectors globally.ENSCO is dedicated to developing and implementing cutting-edge technologies that ensure mission success. Our services encompass systems engineering, integration, and advanced technology solutions designed to enhance the safety, security, and resilience of critical missions across terrestrial, aerial, and spatial domains, along with the information systems that connect these areas.Discover more about ENSCO.Position Overview ENSCO, Inc., within the Mission Systems Group (MSG), is looking for a skilled RHEL Systems Administrator (Cameo Administrator). The successful candidate will oversee the monitoring and maintenance of Cameo systems, ensuring the integrity and accessibility of all server resources, hardware, and key processes. Responsibilities include developing and documenting technical standards and procedures and supporting the engineering team in various administrative and solution-oriented tasks. The Systems Administrator will monitor system health and performance to ensure high availability and contribute to overall product quality by collaborating closely with project managers and government technical leads to utilize essential tools for file handling, directory management, command-line operations, and documentation.The role also entails configuring and troubleshooting user profile issues within a virtual desktop environment, optimizing system storage on virtual desktops, and managing user sessions and profiles. The Administrator will provide technical support to a large user community, offering expertise in accessing and utilizing the Cameo system, while effectively communicating technical considerations to external system partners and assisting with user role management. Close collaboration with information systems security and engineering teams will be necessary to ensure proper software versioning, scanning, patching, and compliance with ATO/accreditation standards. The administrator will maintain a detailed backlog of work products in JIRA and will work with project management to update senior leadership on project status during Agile ceremonies.The position is based in Warrenton, VA.

Location: Multiple LocationsRequired Clearance: Top SecretCertifications: DoD 8140 certificationsRequired Education: High School Diploma or GEDRequired Experience: 7–10+ years in system administration, focusing on enterprise-level environments.Position Overview:PingWind is actively looking for a highly skilled Senior Systems Administrator to spearhead the design, implementation, maintenance, and optimization of our IT infrastructure. This pivotal role guarantees the reliability, security, and scalability of systems and networks while delivering advanced technical support and guidance to junior team members. The Senior Systems Administrator will collaborate with IT leadership and cross-functional teams to strategize and execute system upgrades, cloud integrations, and large-scale enterprise projects.Key Responsibilities:• Design, implement, and sustain enterprise IT systems, including servers, storage, virtualization, and network infrastructure.• Ensure optimal system performance, availability, and security across various environments including on-premises, cloud, and hybrid setups.• Strategically plan and execute system upgrades, migrations, and consolidations.• Continuously monitor system health, performance, and capacity while proactively addressing potential issues.• Develop and uphold backup, disaster recovery, and business continuity strategies.• Enforce security protocols, patch management, and vulnerability remediation.• Provide expert-level support for complex technical challenges across systems, networks, and applications.• Mentor and guide junior administrators and IT support personnel.• Act as the escalation point for critical incidents and outages.• Demonstrate advanced proficiency in Windows Server, Linux/Unix, and hybrid IT environments.• Possess knowledge of networking, firewalls, storage solutions, and virtualization tools (VMware, Hyper-V).• Experience with cloud platforms (AWS, Azure, Google Cloud) and cloud migration methodologies.• Skilled in scripting and automation (PowerShell, Bash, Python, Ansible, Terraform).• Strong understanding of security principles, identity/access management, and compliance standards.

Position: Linux Systems Administrator Location: Madison, WI Duration: 3+ MonthsWe are excited to announce an opening for a Linux Systems Administrator to join our team at a well-respected client based in Wisconsin. This opportunity begins on 3/23/2015 and is expected to run until 6/30/2015. As a Systems Administrator, you will oversee all administrative functions for Linux servers, with a focus on Oracle Linux support. Your responsibilities will encompass installation, configuration, patch management, security, maintenance, and support for relevant peripheral devices. Key tasks include user account management, integration with directory services, performing system backups and restores, network and storage configuration, and managing virtual environments through VMware tools. You will also engage in performance optimization, system troubleshooting, diagnostics, and monitoring system performance and security.Technical/Support Skills Required:• Exceptional collaboration and communication skills.• Strong organizational and presentation abilities.• Proactive response to system incidents across all Linux systems, including patch deployments and maintenance, application upgrades, and alert monitoring.• Expertise in system administration tasks such as installations, configurations, troubleshooting, kernel tuning, user access administration, file system optimization, hardware configuration, and performance tuning.• Proficient in Linux system administration and engineering.• Knowledge of Linux deployments and administration practices.• Experience structuring and supporting high-availability web-based systems.• Proficient in shell scripting.• Familiarity with Linux performance tuning and associated utilities.• Intermediate to advanced skills in SQL queries and scripting.• Understanding of networking concepts (TCP/IP protocols, routing, subnets, services, DNS, etc.).• Proven ability to work with both technical and non-technical personnel.• Capability to manage multiple projects under tight deadlines and communicate effectively with executive management.• Familiarity with ITIL processes is a plus.• Strong analytical skills and problem ownership.• Ability to negotiate acceptance criteria for problem resolution with both internal and external customers.

Join usm2 as a Windows System Administrator, where you will play a crucial role in managing and maintaining our Windows-based systems. You will ensure the reliability, security, and performance of our IT infrastructure while providing support to our users. If you are passionate about technology and thrive in a dynamic environment, this is the perfect opportunity for you!

Join our dynamic team at usm2 as a CICS Systems Administrator. In this mid-senior level role, you will play a crucial part in managing CICS environments, ensuring optimal performance, and supporting our mission-critical applications. This is an excellent opportunity to advance your career in a collaborative and innovative environment.

Join our dynamic team as a UNIX System Administrator at eproinc, where you will play a pivotal role in maintaining and optimizing our UNIX systems. Your expertise will ensure the reliability and performance of our infrastructure, allowing us to deliver exceptional services to our clients.

Join our dynamic team at dstaff as a Unix Systems Administrator. In this role, you will be responsible for managing and maintaining our Unix-based systems, ensuring optimal performance and security. You will collaborate with cross-functional teams to implement solutions and provide technical support to users.

We are seeking a dedicated Windows System Administrator to join our dynamic team. In this role, you will be responsible for maintaining, configuring, and troubleshooting Windows servers and related infrastructure to ensure optimal performance and security.Your expertise will contribute to the design and implementation of effective systems solutions that meet our organizational needs. If you are passionate about technology and eager to make an impact, we want to hear from you!