Remote Permanent Senior Systems Administrator Job Vacancies

1 to 25 of 62 Remote Permanent Senior Systems Administrator Jobs

Senior Systems Administrator

Burton upon Trent, Staffordshire, United Kingdom
Hybrid / WFH Options
PHD Mail Limited
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 … 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 More ❯
Employment Type: Permanent
Salary: £30000 - £34000/annum
Posted:

Hosting Service - Senior System Administrator

London, England, United Kingdom
Hybrid / WFH Options
Idox plc
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 … 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 More ❯
Posted:

Senior Learning Management Systems Administrator

Newport, Wales, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
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Senior ERP & CRM Systems Administrator with Security Clearance

Herndon, Virginia, United States
Hybrid / WFH Options
iDirect Government LLC
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 … 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 … 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 More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Principal/Sr. Principal Windows Systems Administrator with Security Clearance

Annapolis Junction, Maryland, United States
Hybrid / WFH Options
Northrop Grumman
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 … 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 … 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 More ❯
Employment Type: Permanent
Salary: USD 163,020 Annual
Posted:

Senior Learning Management Systems Administrator

Bristol, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

System Administrator, Senior with Security Clearance

San Antonio, Texas, United States
Hybrid / WFH Options
Wood Consulting Services, Inc
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 … 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 … 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 More ❯
Employment Type: Permanent
Salary: USD 180,000 Annual
Posted:

Senior Systems Administrator - Clearance Required with Security Clearance

Huntsville, Alabama, United States
Hybrid / WFH Options
Lockheed Martin
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 collaborative team environment • Desire to work in a fast paced, mission-focused environment • Highly responsible, team-oriented individual with a strong work ethic • Effective organizational skills with strong attention to detail • Excellent problem-solving skills More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Systems Administrator, Hybrid Valencia

Valencia, Spain
Hybrid / WFH Options
HBX Group
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 … 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 More ❯
Employment Type: Permanent
Salary: EUR Annual
Posted:

Hosting Service - Senior System Administrator

London, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
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Sr. Microsoft Systems Administrator (Sys Admin) Public Trust with Security Clearance

Washington, Washington DC, United States
Hybrid / WFH Options
Ascension Federal Services Inc
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 … 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 More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Information Technology System Administrator

Eastbourne, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

Hosting Service - Senior System Administrator

England, United Kingdom
Hybrid / WFH Options
Idox plc
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. … 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 … 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 More ❯
Posted:

Senior Linux System Administrator

United Kingdom
Hybrid / WFH Options
G.Digital
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 … 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 More ❯
Posted:

Senior System Administrator Linux (m/w/d)

Mannheim, Baden-Württemberg, Germany
Hybrid / WFH Options
osapiens Holding GmbH
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 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 More ❯
Employment Type: Permanent
Salary: EUR Annual
Posted:

Senior Linux System Administrator

Warrington, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

Senior Linux System Administrator

Wakefield, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

Senior Linux System Administrator

Worcester, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

Senior Linux System Administrator

Peterborough, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

Senior Linux System Administrator

Swindon, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

Senior Linux System Administrator

London, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

Senior Linux System Administrator

Hull, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

Senior Linux System Administrator

Newcastle upon Tyne, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
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 … 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 More ❯
Posted:

Senior Linux/SysAdmin Engineer - Remote UK/Ireland

Newcastle upon Tyne, England, United Kingdom
Hybrid / WFH Options
Partnerize
clients' loyalty. Job Overview We are at a pivotal point in our tech progression. We're looking to grow the technical estate, replace existing systems with new and scale and develop the platform. It's an exciting time to join the team in this captivating period. As a Senior … problems are addressed in a timely manner by the team. You should have a keen interest in problem-solving accompanied with experience in Linux systems, an understanding of web servers, basic database skills and have an interest in DevOps and systems administration. We're looking for a mix … Information Technology Industries Advertising Services Referrals increase your chances of interviewing at Partnerize by 2x Get notified about new Senior System Administrator jobs in Newcastle Upon Tyne, England, United Kingdom . We’re unlocking community knowledge in a new way. Experts add insights directly into More ❯
Posted:

PubSec Senior Linux System Administrator

Tewkesbury, Gloucestershire, United Kingdom
Hybrid / WFH Options
DXC Technology Inc
both challenging and exciting situations. At DXC, one of our platinum accounts has openings for hybrid working Senior Linux System Administrator at varying skill levels. The successful candidate will work within multiple teams and will be innovative and analytical with a good eye for detail. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
Senior Systems Administrator
10th Percentile
£32,938
25th Percentile
£45,000
Median
£65,000
75th Percentile
£73,438
90th Percentile
£75,000