1 to 25 of 61 Remote Senior Systems Administrator Jobs

Social network you want to login/join with: Senior Information Technology System Administrator, eastbourne col-narrow-left Client: Salt Location: eastbourne, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 7 Posted: 06.06.2025 … Expiry Date: 21.07.2025 col-wide Job Description: I'm working with a leading University in the South of England who are looking for a Senior IT Systems Administrator (Windows). The role is focused on managing and developing core IT services, with a strong emphasis on Windows Server Environments, Active Directory, Office 365, and … team. ? MUST HAVE EXPERIENCE: Microsoft 365 (Office 365) - admin, support, and development Exchange/Exchange Online -must have proven experience of migrating Exchange on-premise to Exchange online Backup systems and disaster recovery processes ***Experience working in or with the higher education sector*** ? ESSENTIALS: Strong communication & problem-solving skills Ability to explain technical concepts to non-technical users Collaborative More ❯

Hosting Service - Senior System Administrator Hosting Service - Senior System Administrator 1 week ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Direct message the job poster from Idox plc Home based with occasional travel to Idox offices. About the role We … are seeking a skilled Senior System Administrator to support and enhance our hosted solutions across both private and public cloud environments. This role is essential in ensuring the availability, security, performance and compliance of hosted services against our published service levels and descriptions. The ideal candidate will bring deep expertise in managing complex IT environments … Industries IT Services and IT Consulting, Software Development, and IT System Data Services Referrals increase your chances of interviewing at Idox plc by 2x Get notified about new System Administrator jobs in England, United Kingdom . Oxford, England, United Kingdom 1 day ago Abingdon-On-Thames, England, United Kingdom 6 hours ago London, England, United Kingdom 2 weeks More ❯

Senior Systems Administrator Prerequisites IT Systems and Infrastructure experience & knowledge (4-5+ years) A self-motivated individual with excellent problem-solving skills A trustworthy team player with good communication skills Working within a small systems team supporting the business across 2 sites supporting all departments and users, you will report to … the head of department and provide support for systems and infrastructure. You will be responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure. This role requires the individual to participate in technical research and development to enable continuing innovation within the infrastructure. This individual ensures that system hardware, operating … systems, software systems, and related procedures are in line with the organisations requirements and strategic direction. The scope of the role includes responsibility for internal infrastructure hardware and software as well as operational infrastructure including online systems, extending to cloud-based services where appropriate. Where required there will need to be involvement in new project work, where More ❯

Social network you want to login/join with: Hosting Service - Senior System Administrator, england col-narrow-left Client: Idox plc Location: england, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 10.06.2025 Expiry Date: 25.07.2025 col-wide Job Description: Hosting Senior System Administrator Public Sector Hosting Home based with occasional travel to Idox offices. About the role We are seeking a skilled Senior System Administrator to support and enhance our hosted solutions across both private and public cloud environments. This role is essential in ensuring the availability, security, performance and compliance of hosted services against our … hosted services in order to meet SLAs. Implement redundancy, disaster recovery, and failover mechanisms to minimize downtime. Deploy and maintain monitoring solutions for both private and public cloud-hosted systems to identify and resolve issues proactively. Analyse performance metrics and implement optimizations to ensure alignment with SLA requirements. Manage and maintain Citrix NetScaler for load balancing, secure access, and More ❯

Hosting Senior System Administrator Public Sector Hosting Home based with occasional travel to Idox offices. About the role We are seeking a skilled Senior System Administrator to support and enhance our hosted solutions across both private and public cloud environments. This role is essential in ensuring the availability, security, performance … hosted services in order to meet SLAs. Implement redundancy, disaster recovery, and failover mechanisms to minimize downtime. Deploy and maintain monitoring solutions for both private and public cloud-hosted systems to identify and resolve issues proactively. Analyse performance metrics and implement optimizations to ensure alignment with SLA requirements. Presentation Tier Administration: Manage and maintain Citrix NetScaler for load balancing … Virtual Apps, Remote Desktop Services and Azure Virtual Desktop to deliver hosted applications and ensure a seamless end-user experience. Windows Server Administration: Deploy, configure, and manage Windows Server systems in private and public cloud-hosted setups. Configure and troubleshoot Group Policy Objects (GPOs) to enforce security and operational policies. Perform advanced troubleshooting to quickly resolve issues affecting hosted More ❯

Proficiency in working with OpenStack components and services • Proficiency in working with AWS Cloud components and services • Experience with RKE2, Rancher, Longhorn, and Docker containers • Proficiency in various operating systems, such as Linux/Unix, Windows Server • Understanding of networking protocols and services (TCP/IP, DNS, DHCP, VPN, etc.) • Configuration and management of routers, switches, firewalls, and other … network devices • Experience with firewalls, intrusion detection/prevention systems, and vulnerability management • Proficiency in scripting languages like Bash, PowerShell, or Python to automate repetitive tasks • Understanding of server hardware, storage systems, and backup solutions • Troubleshooting hardware issues and coordinating with vendors for support • Experience with operational ground systems • Be a team player and work in a … encourage you to search on Lockheed Martin Jobs , and apply for roles that align with your qualifications. Experience Level: Experienced Professional Business Unit: SPACE Relocation Available: Possible Career Area: Systems Engineering: Other Type: Part-Time Shift: First More ❯

Sr. Microsoft Systems Administrator (Sys Admin) Must be able to obtain a Public Trust Location: Washington, DC/Hybrid Shift: • Two days per week onsite requirement at DOT HQ, Washington DC. • Once every 23 months support existing server infrastructure in a 24x7 on call escalation capacity as part of a team rotation. Experience: Must have a minimum … of 10 years of experience administrating and managing servers and systems, cloud infrastructure, file and print environments, specializing in Windows operating systems. Must have advanced knowledge of Microsoft Active Directory and SQL Server. Must possess a Microsoft Certified Solutions Expert (MCSE) - Server Infrastructure or equivalent. Duties: Responsible for the day-to-day management of the Windows Server infrastructure, to … design, implementation, and integration with Windows Active Directory, MS ADFS, and Domain Controllers. The candidate will be working with a team of server engineers to troubleshoot issues for multiple systems in multiple datacenter locations. The candidate will provide support, implementation, and design services for Windows-based systems across the enterprise. The candidate will be responsible for resolving and More ❯

ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many … secure technological solutions to enable strategic objectives. We're looking for innovators, who can help us keep building on our wide portfolio of secure, affordable, integrated, and multi-domain systems and technologies that fuel those missions. By joining in our shared mission, we will support yours of expanding your personal network and developing skills, whether you are new to … or an industry thought leader. At Northrop Grumman, you will have the resources, support, and team to do some of the best work of your career. Northrop Grumman Mission Systems is seeking a highly experiencedWindows Systems Administrator to join its Classified Solutions team in Annapolis Junction, MD; the selected candidate will be required to work on More ❯

tech + data + people that truly sets us apart in the market, alongside our 'global approach, local touch' mentality. Job Summary The Corporate IT Matter Subject Expert for Systems forms a part of the team of engineers that are focus on Systems related technologies , within the wider Corporate Systems team. The role involves driving the implementation … operation and improvement of the systems tech stack and practices, including compute, storage, identity and security, focusing on our corporate systems reliability, scalability, and efficiency. Collaborates closely with the rest of the Technology, Corporate and Platform teams to align on and drive the Corporate IT compute system. The ultimate goal is to build and run a reliable, scalable … secure set of compute capabilities in HBX Group while fostering a culture of collaboration, innovation, and continuous improvement within the team. Job Responsibilities Form part of the Corporate IT Systems team, providing support in day-to-day activities delivering high-quality results and meeting the service targets. Collaborate with the Corporate Systems Lead and other technology platforms teams More ❯

Overview The Senior ERP & CRM Systems Administrator will play a critical role within the IT team, responsible for the ongoing administration, maintenance, support, and enhancement of the company's core business applications - including Oracle E-Business Suite, Salesforce, and collaboration platforms such as Atlassian JIRA and Confluence. This position requires a hands-on, proactive … complex technical issues and will be expected to perform system setup, configuration, performance tuning, and operational optimization. In addition to core r esponsibilities, the Senior Administrator will contribute to broader IT operations and demonstrate flexibility in taking on evolving roles within a small, agile team. This position is based in Herndon, VA with the opportunity … company goals. Knowledge or Proficiency Areas preferred. Strong computer and technical skills, especially with Linux, scripting. Any Oracle Application DBA Relevant Experience supporting Oracle E-Business applications and Database systems in fast paced environment is huge plus. Ability to administer, troubleshoot, backup, restore, move, upgrade, patch and tune JIRA, Confluence and Oracle Application databases is highly desirable. Salesforce administration. More ❯

Overview System Administrator, Senior Location: San Antonio, Texas, USA Job Type: Full-Time Shift: Days Telework: None Salary Range: $140,000 to $180,000 Starting salary is based on minimum education and years of experience and increases based on education and/or experience. Overview: We are seeking skilled System Administrators with a government clearance … mobile devices. Escalate and communicate status to agency management and internal customers. Optimize system operations, perform capacity analysis, and plan resource utilization. Configure and manage UNIX and Windows operating systems, including software installation and network component configuration. Provide detailed analysis and feedback for escalated tickets. Support dispatch system and hardware problem resolution. Support the design of systems, mission … interdependencies as part of the Service Oriented Architecture (SOA). Analyze and resolve complex problems associated with server hardware, applications and software integration. Qualifications Senior System Administrator: Fifteen (15) years experience as a SA in programs and contracts of similar scope, type, and complexity is required. Bachelor's degree in a technical discipline from an More ❯

Social network you want to login/join with: Senior Learning Management Systems Administrator, newport, wales col-narrow-left Client: The Workforce Development Trust Location: newport, wales, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 6 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: Job Title … Senior Learning Management Systems Administrator Department: Learning Solutions Location: Bristol office with Hybrid working Pay Scale : £33,000k to £37,500k per annum Contract: Permanent Hours: Full Time (37.5 hours per week) 7.5 hours per day. The Workforce Development Trust The Workforce Development Trust is a not-for-profit organisation that provides services that … responsible for the advanced technical support, implementation, and optimisation of the Workforce Development Trust’s digital learning platforms and offerings. This includes acting as the technical lead for learning systems, supporting platform enhancements, and managing complex client implementations and migration projects. The post holder will supervise the LMS Administrator, act as an escalation point for the support More ❯

Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 23.05.2025 Expiry Date: 07.07.2025 col-wide Job Description: Job Title : Senior Learning Management Systems Administrator Department: Learning Solutions Location: Bristol office with Hybrid working Pay Scale : £33,000k to £37,500k per annum Contract: Permanent Hours: Full Time (37.5 hours per … targeted skills interventions to support a variety of frontline public services. Job summary As a key member of the Learning Solutions department, the Senior LMS Administrator is … responsible for the advanced technical support, implementation, and optimisation of the Workforce Development Trust’s digital learning platforms and offerings. This includes acting as the technical lead for learning systems, supporting platform enhancements, and managing complex client implementations and migration projects. The post holder will supervise the LMS Administrator, act as an escalation point for the support More ❯

AEITS, Inc. is seeking a Senior Software Developer with expertise in ServiceNow and a proven track record in enterprise software development to support our mission-focused software development team. In this position, you will support our customer in the Annapolis Junction, MD area. In this role, you will provide technical leadership, contribute to the full software development … implementations across complex systems. Mission: As a Software Developer supporting this government program, you will lead the design, development, and optimization of ServiceNow-based solutions to support enterprise-wide systems and ensure alignment with organizational and security standards. You will apply expert-level knowledge across the software development lifecycle, driving innovation while maintaining system integrity, performance, and compliance. Location … Administrator Requirements: U.S. Citizenship TS/SCI with Polygraph Bachelor's Degree and 20 years of relevant experience Research, design, develop, and/or modify enterprise-wide systems and applications Apply expert-level knowledge to all phases of the software development lifecycle (SDLC) Lead efforts in software updates, refinement, testing, debugging, and documentation Ensure code and configuration More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯

We are now seeking a highly skilled Senior System Administrator - Linux to support the ongoing development and optimisation of our osapiens HUB. In this role, you will be responsible for managing and enhancing our infrastructure, automating deployment processes, and ensuring the reliability, scalability, and security of our platform. The osapiens HUB is a modern, enterprise … your colleagues in the operation of cloud infrastructures for our national and international customers Requirements A completed training as Specialist IT - System Integration, or comparable Handling many Linux (Ubuntu) systems using tools (e.g. Ansible), and managing Java applications, Apache Cassandra/ScyllaDB, Elasticsearch, and HA Proxy is not difficult for you Several years of professional experience with monitoring tools More ❯

exciting project. You’ll be joining a small, highly skilled team working on a large-scale, embedded server platform — built on Ubuntu, running on real hardware, and powering production systems used by thousands. This isn’t a role buried in abstraction — you’ll be close to the metal, solving real problems with real consequences. What You’ll Do Maintain … and optimise Ubuntu-based Linux systems running in a private cloud environment. Monitor, troubleshoot, and improve performance across systems and services. Manage production databases (PostgreSQL, Cassandra, Redis, Kafka) with a focus on reliability and scalability. Work on network infrastructure — including WireGuard tunnels, BGP configuration, and general network troubleshooting. Contribute to internal tooling (AMIs, automation, monitoring) and help shape … projects. Occasionally provide out-of-hours support as part of a shared rotation ( All within normal working hours Monday - Friday) What We’re Looking For Deep experience running Linux systems in production — especially Ubuntu. Confidence in managing, tuning, and troubleshooting relational and distributed databases. Strong understanding of networking concepts — experience with VPNs, routing, and security best practices. Comfortable working More ❯