1 to 25 of 2,770 Permanent TCP/IP Jobs

DHCP, DNS, and file-sharing technologies. Experience with Active Directory and associated technologies (Group Policy, DNS, LDAP, Kerberos.) Deep expertise with Linux distributions (Red Hat / CentOS preferred.). Supporting technologies including LDAP, Identity Management, Authentication, Load Balancing, Patch Management, and Security tools. Familiarity with virtualization platforms (VMware ESXi, vCenter, Hyper-V, etc.). Hardware knowledge: Servers: Dell … / HP / IBM. Networking: Cisco / Juniper / F5 / Aruba / CheckPoint. Storage: NAS / SAN familiarity. In-depth knowledge of networking protocols (e.g., TCP / IP, BGP, OSPF) and technologies (e.g., VLANs, VPNs, QoS). Cloud service … platform knowledge / familiarity - AWS / Azure. Hands-on experience with SAN, NAS, and cloud storage technologies. Microsoft 365 administration. Proficient in one or more scripting languages (PowerShell, Bash, Perl, Python, etc.). Experience with various monitoring packages (e.g., Zabbix, Nagios, etc.). Relevant certifications (e.g., MCSE, RHCE, CCNP, CCIE, JNCIP) are highly desirable. Must be More ❯

Windows Server issues affecting availability, performance, or security. Support and administer platforms including Active Directory, Azure AD, and Single Sign-On (SSO) integrations. Perform advanced troubleshooting of LAN / WAN networking, VPN connectivity, DNS / DHCP, and wireless infrastructure. Manage endpoint security, EDR platforms, vulnerability remediation, and compliance best practices. Lead technical implementations for client-specific … vendors to resolve infrastructure or service-related escalations. Deliver white-glove support to VIP and executive users, ensuring minimal disruption and maximum discretion. Identify recurring issues and recommend / implement proactive solutions to improve the end-user experience and reduce support demand. Expertise working with tools like FortiGate, Palo Alto, Azure, AWS, and the Microsoft ecosystem. Advanced networking … configuration, patching, and role management. Proficient in advanced troubleshooting of server-related issues including hardware, software, Active Directory replication, DNS, and Group Policy management. Expertise in Windows 10 / 11, Microsoft 365 (Outlook, Teams, SharePoint, OneDrive), and mobile device management (iOS, Android). Deep knowledge of Active Directory, Azure AD, Exchange Online, and Group Policy. Advanced understanding of More ❯

environments, and networking components. Develop and manage automation solutions to streamline infrastructure deployment, management, and monitoring. Implement and optimize automation tools such as Azure DevOps (or other CI / CD pipelines), Terraform, Node-Red, and Packer. Automate configuration management, infrastructure provisioning, and application deployment. Ensure system reliability, scalability, and performance through proactive monitoring and automation. Deploy and manage … monitoring tools (Zabbix, SolarWinds SentryOne, and other network / database monitoring solutions). Maintain and improve local network environments, including Dell servers and Dell switch configurations. Strong technical expertise in Microsoft Active Directory (AD), Windows Server environments, and authentication solutions. Plan for scalability, redundancy, and high availability to support future growth. Cloud & DevOps Integration (these tools and skills … compliance in regulated environments. Proven ability to secure high-value data (PCI cardholder data, PII) and implement security best practices. Strong networking knowledge (LAN, WAN, DNS, DHCP, VPN, TCP / IP). Proficiency in firewall and load balancer technologies for secure environments. Hands-on experience with virtualization platforms (VMware, Citrix Xen) and backup solutions More ❯

plans, Diagrams, Sustainment and Test Plans. Coordinate and perform in-depth tests, including end-user reviews as a part of the project life cycle when standing up and / or modifying new systems or existing environments. Design, diagram and deploy new applications and or applications enhancements, software and operating systems. Install, configure, test and maintain operating systems, application … software and system management tools. Assess and perform server security audits and system vulnerabilities to ensure systems meet DOD security posture prior to Operational readiness. Conduct research and / or proof of concept on software and systems products to justify recommendations and to support purchasing efforts. Liaise with vendors and other IT personnel when needed on project solution … IP, WAN, VPN, VLAN, VRF, etc.) Experience with LAN / WAN setup, TCP / IP protocol, routing / switching, load balancers, subnets, configurations, and firewall technologies. Desired certifications: CCNP, Windows operating systems (2016,2019 & 2022, M365, SharePoint): Strong experience in management of Active Directory More ❯

Diagrams, Sustainment and Test Plans. + Coordinate and perform in-depth tests, including end-user reviews as a part of the project life cycle when standing up and / or modifying new systems or existing environments. + Design, diagram and deploy new applications and or applications enhancements, software and operating systems. + Install, configure, test and maintain operating … system management tools. + Assess and perform server security audits and system vulnerabilities to ensure systems meet DOD security posture prior to Operational readiness. + Conduct research and / or proof of concept on software and systems products to justify recommendations and to support purchasing efforts. + Liaise with vendors and other IT personnel when needed on project … IP, WAN, VPN, VLAN, VRF, etc.) + Experience with LAN / WAN setup, TCP / IP protocol, routing / switching, load balancers, subnets, configurations, and firewall technologies. + Desired certifications: CCNP, Windows operating systems (2016,2019 & 2022, M365, SharePoint): + Strong experience in management of More ❯

of parts creation, and licensing models. Vendor selection and procurement processes. Strong Excel and writing skills to communicate solution components and needs analysis Networking & Infrastructure: Deep understanding of TCP / IP, DNS, DHCP, VLANs, VPNs, OSPF, STP, and subnetting. Experience with firewalls, switches, and routers (Sonicwall, Meraki, Aruba, Cisco, Fortinet, etc.). Knowledge of … administration (Exchange Online, SharePoint, Teams, OneDrive). Microsoft Defender for Business & Compliance Solutions. Identity Management with Entra ID Connect, Intune, Conditional Access Policy. Storage & Backup Solutions: SAN / NAS solutions and best practices. Backup & disaster recovery solutions (Veeam Backup). Business continuity planning and DR strategy development. Server & Endpoint Management: Windows Servers (Active Directory, Group Policy, DNS, DHCP More ❯

Directory, DNS, DHCP, and Group Policy. * Advanced knowledge of Office 365 administration (Exchange Online, SharePoint, Teams, OneDrive). * Experience in vitalisation platforms (VMware, Hyper-V). * Networking expertise: TCP / IP, VLANs, routing, firewalls (SonicWall, Cisco, Fortinet), VPNs. * Experience with Microsoft Azure and / or AWS. * Strong analytical and problem-solving skills. More ❯

clients, colleagues, and vendors. Knowledge of security best practices and compliance frameworks (e.g., PCI DSS, HIPAA, GDPR) relevant to centralized services. Proficiency in networking concepts and protocols, including TCP / IP, DNS, DHCP, VLANs, Wi-Fi Knowledge of network security principles and best practices, including access control, firewalls, VPNs, and intrusion detection / prevention systems (IDS / IPS). Proficiency in scripting languages such as Python, PowerShell, JSON, or Bash. Excellent analytical and problem-solving skills, with the ability to troubleshoot complex issues and implement effective solutions. Working knowledge of configuration management tools (e.g., Puppet, Ansible), virtualization platforms (e.g., VMware, Hyper-V), and cloud services (e.g., AWS, Azure). More ❯

Social network you want to login / join with: We deliver comprehensive IT solutions that keep your business connected, secure, and future-ready. Our team provides hands-on support and strategic guidance across modern workplace solutions, cloud services, and cybersecurity. Working with leading technology partners like Microsoft, we ensure you have access to the best tools and expertise … trends and proactively improve our service offerings What We're Looking For: Proven 3rd line technical support experience in IT. Strong expertise in Windows Server, Active Directory, Networking (TCP / IP, DNS, DHCP, VPNs), and Cloud Services (Azure, Microsoft 365). Excellent problem-solving skills, able to handle high-pressure situations effectively. Experience working … Service Provider (MSP) environment. Expert-level proficiency in IT systems administration, including: Windows Server (2016, 2019, 2022) – Active Directory, Group Policy, DNS, DHCP. Advanced Networking – Firewalls, VPNs, VLANs, TCP / IP, DNS, DHCP, SD-WAN, Wi-Fi security. Scripting & Automation – PowerShell, Bash, Python (preferred). Backup & Disaster Recovery solutions – Veeam, Datto, Azure Backup. Certifications More ❯

software installation, upgrades, and transformative projects. Action daily midlevel to advanced infrastructure support incidents Resolve incidents and requests related to, but not limited to the following: Mail Application / Office 365 issues, Client / Server Connectivity issues, Time Sensitive and VIP Workstation incidents, File Restores, Remote Access incidents (Citrix and Terminal Services), Password Resets to name … a few. Execute basic system maintenance including software and operating system patching and software version upgrades. Provide support of Active Directory such as add / remove users, password resets and Group Policy application. Interface with common technology support tools such as Remote Monitoring and Management (RMM), Mobile Device Management (MDM) Project work for the installation & Support of Windows … on experience with Azure, Intune, OneDrive, Exchange online and SharePoint. Proficiency in implementing and managing conditional access policies in Microsoft Azure Active Directory. Basic PowerShell experience, e.g., copy / paste and writing / deploying Android / iOS configuration, troubleshooting and potential with MDM / MAM solutions. Able to troubleshoot / More ❯

solutions, and cloud environments Manage and maintain Internet presence including website, DNS, email servers Perform system upgrades, patch management, and regular maintenance Monitor, configure, and troubleshoot LAN / WAN, firewalls, routers, switches, PBX Implement network security measures and ensure compliance with company policies Manage VPNs, remote access, and telephony solutions Provide technical support to end-users for … procedures Provide escalation support for support team and customers Mentor other technical and support areas, sharing areas of expertise Cross train with support team to help provide additional / backup support Assist engineering in the development and improvement of standard and custom setup files including validation testing and software regression testing Interface with marketing, customer service, sales and … conduct Ability to travel and work outside of normal business hours if required EDUCATION & EXPERIENCE REQUIRED: Bachelor of Science degree or equivalent experience required. Proficiency with troubleshooting LAN / WAN TCP / IP and IIoT Cloud communications and tools Proficiency with network protocols such as SMTP, FTP, SSH, MQTT, HTTP, SSL / More ❯

the Chantilly, VA. Responsibilities include but are not limited to: Integrate, tailor, engineer, design, and maintain cybersecurity relevant features & capabilities using well-known windows and cloud vendor capabilities / services / platforms (e.g. Amazon Web Services, MS Azure, Oracle Cloud) or 3rd party vendor cloud products to align & support NIST cybersecurity framework (Identify, Protect, Detect, Respond … SOAR), and deploy & maintain solutions enabling cyber operations monitoring teams. Provide inputs, participate, and assist with architecture design and documentation by using a blend of Agile, ITIL, and / or general waterfall-based delivery framework approaches depending on specific project activity or enterprise security service. Interact with stakeholder, customer, and data consuming team(s) to turn cyber data … and command line interface (CLI) , preferably experience with Red Hat v8.0. Experience with Windows Server 2016, Windows Server 2019, Active Directory, Server Roles, Access Rights and Security Groups. TCP / IP networking, 802.1x and network security concepts is required. Minimum Qualifications: Bachelor's degree or 4+ years of additional software development in lieu of More ❯

services in line with design and security policies. Monitoring and administering the installation and integration of corporate network communications, including routers, switches, firewalls, DMZ, servers, telephony and LAN / WAN communication services. Managing the IP space across the organisation ensuring VLANs, IP Subnet, DNS, DHCP, VPNs, and VoIP traffic is well designed, secure and … Planning lifecycle renewals, 'hotswap' procedures and emergency hardware failure protocols. Providing regular service status updates to line management and agree and monitor service availability targets. Ensuring the active / active WAN bandwidth and connectivity services are sufficient, balanced and perform efficiently. Planning and testing failover of critical operational services. Researching latest networking developments and recommend any actions that … is preferred. Experience in a Technical IT role maintaining secure networks in a MS Windows environment in a multi-disciplined organisation. Expert knowledge of and experience in LAN / WAN / VLAN communications, VPN configuration and enterprise wireless networking. Experience of Dell switches with fibre is preferable. CCNA / CCNP accreditation is a bonus More ❯

services in line with design and security policies. Monitoring and administering the installation and integration of corporate network communications, including routers, switches, firewalls, DMZ, servers, telephony and LAN / WAN communication services. Managing the IP space across the organisation ensuring VLANs, IP Subnet, DNS, DHCP, VPNs, and VoIP traffic is well designed, secure and … Planning lifecycle renewals, "hotswap" procedures and emergency hardware failure protocols. Providing regular service status updates to line management and agree and monitor service availability targets. Ensuring the active / active WAN bandwidth and connectivity services are sufficient, balanced and perform efficiently. Planning and testing failover of critical operational services. Researching latest networking developments and recommend any actions that … is preferred. Experience in a Technical IT role maintaining secure networks in a MS Windows environment in a multi-disciplined organisation. Expert knowledge of and experience in LAN / WAN / VLAN communications, VPN configuration and enterprise wireless networking. Experience of Dell switches with fibre is preferable. CCNA / CCNP accreditation is a bonus More ❯

network services in line with design and security policies.Monitoring and administering the installation and integration of corporate network communications, including routers, switches, firewalls, DMZ, servers, telephony and LAN / WAN communication services.Managing the IP space across the organisation ensuring VLANs, IP Subnet, DNS, DHCP, VPNs, and VoIP traffic is well designed, secure and optimised.Ensuring … protecting network security.Planning lifecycle renewals, "hotswap" procedures and emergency hardware failure protocols.Providing regular service status updates to line management and agree and monitor service availability targets.Ensuring the active / active WAN bandwidth and connectivity services are sufficient, balanced and perform efficiently. Planning and testing failover of critical operational services.Researching latest networking developments and recommend any actions that will … and accreditation is preferred.Experience in a Technical IT role maintaining secure networks in a MS Windows environment in a multi-disciplined organisation.Expert knowledge of and experience in LAN / WAN / VLAN communications, VPN configuration and enterprise wireless networking. Experience of Dell switches with fibre is preferable.CCNA / CCNP accreditation is a bonus but More ❯

optimal performance, security, and reliability. This role involves collaborating with cross-functional teams, troubleshooting complex system issues, and implementing best practices for system administration and security. Active TS / SCI clearance. Key Responsibilities: Administer, configure, and maintain servers, networks, and cloud-based systems. Monitor system performance and ensure high availability and reliability. Implement security policies, patches, and updates … Escalation) problem identification, diagnosis and resolution of problems (U) Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client / server / storage / network devices, mobile devices, etc. Provide support for the escalation and communication of status to agency management and internal customers Optimize … support for the dispatch system and hardware problems and remains involved in the resolution process Configure and manage UNIX and Windows (or other applicable) operating systems and installs / loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance Support the design of systems, mission More ❯

Engineering, or a related field. 10+ years of experience in a professional role as a System Administrator Relevant Bachelors Degree: equivalent to 3 years of experience Relevant Masters / Doctoral Degree: equivalent to 2 years of experience Relevant Certifications: equivalent to 3 months of experience Strong knowledge of Windows and Linux operating systems. Experience with virtualization technologies (VMware … Hyper-V, KVM). Proficiency in networking concepts, including TCP / IP, DNS, DHCP, and VPN. Expertise in managing Active Directory, Group Policy, and enterprise authentication systems. Strong understanding of cybersecurity principles, firewall configurations, and endpoint protection. Familiarity with scripting languages such as PowerShell, Bash, or Python for automation. Experience with backup and disaster … NIST, ISO 27001, and SOC 2. Certifications such as CompTIA Security+, Microsoft Certified: Azure Administrator, AWS Certified SysOps Administrator, or RHCSA. Experience working in a fast-paced Agile / Scrum environment. Knowledge of monitoring tools like Nagios, Prometheus, or Splunk. Experience with IT ticketing systems (JIRA, ServiceNow) for tracking and managing incidents About Us Restless Software is an More ❯

Social network you want to login / join with: Infrastructure and Security Engineer, London Client: Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Reference: f2624fb961fe Job Views: 6 Posted: 22.06.2025 Expiry Date: 06.08.2025 Job Description: Role Profile Reports to: Head of Infrastructure, Network and Cyber Security Key Relationships: Digital Transformation and Tech, Retail … ensure compliance and security standards. Educate teams and promote a security-first culture. Experience and Qualifications Microsoft infrastructure expertise: Windows Server, Active Directory, Microsoft 365, Azure. Networking: LAN / WAN / WIFI, TCP / IP, Cisco firewalls, switches, routing. Database management: SQL Server basics. Virtualization: VMware vSphere, ESXi, vCenter. Scripting … Azure security tools, compliance frameworks. Threat and incident management: vulnerability assessment, threat protection. Patch and endpoint management. Backup and disaster recovery tools. Monitoring tools experience. Cisco certifications (CCNA / CCNP / CCIE). Microsoft certifications (e.g., MCSA, AZ-104). Azure Security certifications (e.g., AZ-500) a plus. Security standards knowledge (ISO 27001, NIST, GDPR). More ❯

STAR 2281 TBD - No LCAT Specified Position Requires ACTIVE TS / SCI Clearance with Polygraph No Level Required Chantilly The maximum number of FTEs is 0.5 (either .5 for a 1-year period or 1.0 for a 6-month period). Actual FTE bid, labor category, and skill level is at the discretion of the Contractor. INTRODUCTION: The … seeks polished skills in design, implementation, testing, and troubleshooting for short-duration network improvement projects that require knowledge and skills using a mix of different vendor hardware, networking / security protocols, and software management configurations. The work will be done in a team environment. The Sponsor is looking for one part-time person for an initial estimated POP … medium-sized integrated information system (IS). The Contractor shall serve as the primary POC when installing, configuring, testing, and maintaining software and hardware related to Windows services / functions; to include Windows Server 2016 / 2019 / 2022, Windows 10 client, AD, WSUS, and GPO. The Contractor shall perform related software updates and More ❯

Senior Infrastructure Engineer Location: Full-time on site in Huntingdon, Cambridgeshire UK (Min 4 / 5 Days) Clearance: High level of clearance required (DV -'Developed Vetting) UNLEASH YOUR POTENTIAL Working across a range of diverse, complex, and secure systems, as an Infrastructure Engineer you will be technically capable and versatile. You will be a senior technical leader able … able to articulate technical issues and outcomes to a broad audience. Extensive experience of producing technical documentation to a high standard. Experience of working in security-cleared environments / working in Defence. Excellent knowledge of virtualisation platforms such as VMware vSphere. Excellent knowledge of VMware vSAN, NSX-T and VCF. Excellent knowledge of locking down environments. Excellent knowledge … complex infrastructure issues. Good general knowledge of Microsoft stack technologies such as MS SQL, MS System Centre, Office365, and CLI tooling such as PowerShell. Good general knowledge of TCP / IP and networking technologies including switches and firewalls. Working knowledge of Linux system administration skills (Red Hat / Ubuntu / More ❯

technical initiatives. Proficiency with ServiceNow platform administration, workflows, and design. Confirmed experience with operating systems such as Windows Server, Linux, and macOS. Strong knowledge of networking concepts, including TCP / IP, DNS, DHCP, and VPNs. Experience with virtualization technologies (e.g., VMware, Hyper-V). Knowledge of security principles and practices, including firewalls, VPNs, EDR More ❯

Social network you want to login / join with: When we say, “the stuff dreams are made of,” we’re not just referring to the world of wizards, dragons and superheroes, or even to the wonders of Planet Earth. Behind WBD’s vast portfolio of iconic content and beloved brands, are the bringing our characters to life, the … resolution or handover to senior engineers; commissioning and maintenance of assets (hardware and software); auditing; project management; and documentation. Responsibilities Providing support to staff throughout the business (troubleshooting / diagnosis, resolution and escalation). Recording details of support requests and ensuring that procedures and other documentation are accurate and updated to reflect changes. Operating System image creation, maintenance … and deployment. Workstation maintenance (deployment of applications, correcting faults, updating drivers / firmware, etc). Setup, update, and fault diagnosis of console platforms (e.g. Microsoft, Sony, Nintendo Switch) and mobile devices (Android and iOS). Transferring licenses between machines as projects change and people move between tasks, ensuring that license documents are kept up to date. Adding / More ❯

SC or DV Clearance (Mandatory) 5 years of experience in network operations or support roles. Proficiency in configuring and troubleshooting Cisco routers, switches, and firewalls. Strong understanding of TCP / IP, routing protocols (BGP, OSPF, EIGRP), VLANs, and subnetting. Experience with enterprise-grade firewalls (Cisco ASA, Palo Alto, Fortinet). Familiarity with VPN technologies … technologies. Exposure to ITIL processes and working in secure government or defence environments. Experience with scripting for automation (Python, PowerShell). Skills: ospf,ipsec,palo alto,cisco asa,tcp / ip,network performance,infrastructure,eigrp,enterprise,dv,routing protocols,network monitoring,communication,juniper,network infrastructure,fortinet,diagnostic tools,lan,aruba,cisco,bgp,problem-solving More ❯

Position Name: Sr. Systems Engineer Reports to: Client Technology Manager Location / Type: LA, CA Atlas Technica's mission is to shoulder IT management, user support, and cybersecurity for our clients, who are hedge funds and other investment firms. Founded in 2016, we have grown 100% year over year through our uncompromising focus on service. We value ownership … change control procedures Requirements: The ideal Sr. Systems Engineer will possess 3 or more years of IT Experience (Desktop Support, Systems Engineering, Systems Administration) End User Support / Desktop Support: Microsoft Windows, Microsoft Office, desktop, and mobile device troubleshooting Strong verbal and written communication skills Ability to balance projects, support tickets, and R&D initiatives Significant experience … are familiar with Citrix XenApp Support of Sophos or similar product for endpoint threat management Understanding of virtualization platforms such as VMware or Hyper-V Understanding of networking: TCP / IP, LAN / DMZ / WAN, DHCP, DNS, Routing, Switching and Firewalls Exposure to / ability to support More ❯

or in a similar IT support role Experience with operating systems such as Windows, Linux, or macOS and server administration Experience with network protocols such as DNS, DHCP, TCP / IP, or VPNs Experience with system virtualization such as VMware or Hyper-V Experience with cloud services such as AWS or Azure Knowledge of … recovery planning, and system monitoring Knowledge of scripting languages such as PowerShell, Bash, or Python to automate administrative tasks Ability to diagnose and resolve complex system issues. TS / SCI clearance with a polygraph HS Diploma or GED Nice if You Have: 15+ years of experience as a Systems Administrator or in a similar IT support role Experience … Hat Certified System Administrator (RHCSA) Clearance: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS / SCI clearance with polygraph is required. Our compensation reflects the cost of labor across several US geographic markets. The base pay for this position ranges from $115,143.26 / More ❯