Senior Linux Systems Administrator Job Vacancies

1 to 25 of 150 Senior Linux Systems Administrator Jobs

Senior Linux Systems Administrator

Ipswich, England, United Kingdom
TieTalent
is presented to you through one of our partners. Click on "Show interest" to be redirected. Job Title: Senior Linux Systems Administrator Location: Ipswich – 2 days a week in the office Employment Type: Full-Time | Permanent Salary: 50-60K + Benefits We … edge, tech-driven client in the connectivity sector who is seeking a seasoned Linux expert. If you're passionate about open-source systems, thrive in high-performance environments, and want to work with a company that truly values technical excellence — this is the opportunity for you. About … the Role: As a Linux Systems Administrator, you will be a key player in managing and optimizing Linux-based infrastructure. You'll be responsible for ensuring system reliability, performance, and security across a wide array of critical services. What You’ll Be Doing More ❯
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Senior Linux System Administrator with Security Clearance

Vicksburg, Mississippi, United States
IronArch Technology
SENIOR LINUX SYSTEM ADMINISTRATOR Vicksburg, MS DESCRIPTION Who we Are Known for being a Best Place to Work and a People First company, IronArch Technology is an award-winning Service-Disabled Veteran-Owned Small Business (SDVOSB) specializing in providing innovative solutions and world class … Deliver and Inspire Excellence, Do the right thing! WHAT YOU'LL DO IronArch Technology is seeking a Senior Linux System Administrator to support a team of administrators with standard Linux system administration duties at ERDC in Vicksburg, Mississippi. In support of the … of administrators provides program management and technical support necessary to advance services, capabilities, infrastructure, and technologies. The Senior Linux System Administrator will perform standard Linux System Administration duties as required to maintain smooth operation of multi-user computer systems consisting of More ❯
Employment Type: Permanent
Salary: USD Annual
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Senior Linux System Administrator

United Kingdom
Hybrid / WFH Options
G.Digital
Senior Linux System Administrator £75,000 • Remote (UK) • Private Cloud Infrastructure • Hands-On Role G.Digital are back with one of our favourite partners in the Tech for good space who are in need of a Senior Linux Wizard to oversee … 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 More ❯
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Senior Linux Systems Administrator with Security Clearance

Aurora, Colorado, United States
Innova Solutions, Inc
Move Forward with Volt Volt is immediately hiring for a Senior Linux Systems Administrator in Aurora, CO. You will be supporting a client's program in a classified environment as a Linux System Administrator. Responsibilities include building, maintaining, and securing Information … Technology systems and directly supporting customer mission-critical capabilities. You will work closely with program developers and system engineers to research issues, determine root causes, and implement solutions to system problems. This is a 12 Month full time Contract Clearance: Active TS/SCI w/Poly The ideal … or more of the following Professional Certifications: Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, CND. Experience administering Red Hat Linux based systems with minimal support, to include patching, creating/maintaining RPM packages, performance tuning, networking, user management (LDAP), and security hardening Qualifications We Prefer Using More ❯
Employment Type: Permanent
Salary: USD Annual
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Senior Linux System Administrator

Stevenage, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, stevenage col-narrow-left Client: G.Digital Location: Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: 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 More ❯
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Senior Linux System Administrator

Warrington, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, warrington, cheshire col-narrow-left Client: G.Digital Location: Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 6 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description … 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 More ❯
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Senior Linux System Administrator

Worcester, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, worcester col-narrow-left Client: G.Digital Location: worcester, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide … 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 More ❯
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Senior Linux System Administrator

Woking, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, woking col-narrow-left Client: G.Digital Location: woking, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide … 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 More ❯
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Senior Linux System Administrator

Peterborough, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, peterborough col-narrow-left Client: G.Digital Location: peterborough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 6 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide … 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 More ❯
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Senior Linux System Administrator

Wakefield, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, wakefield col-narrow-left Client: G.Digital Location: wakefield, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide … 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 More ❯
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Senior Linux System Administrator

Slough, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, slough col-narrow-left Client: G.Digital Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide … 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 More ❯
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Senior Linux AWS Systems Administrator with Security Clearance

Aurora, Colorado, United States
GeoLogics Corporation
Senior Linux AWS Systems Administrator Location: Aurora, CO Required: TS/SCI w/Poly W2 hourly Contract to Hire Only Pay: $60.00 to $89.50/hr. D.O.E. Based on the benefits chosen No C2C, we can NOT work with outside agencies/… a TS/SCI w/Poly and a DoD 8570 IAT Level 2 Certification. Experienced with administering Red Hat Linux based systems with minimal support, to include patching, creating/maintaining RPM packages, performance tuning, networking, user management (LDAP), and security hardening. Deploying and administration of … systems in Amazon Web Services (AWS). REQUIRED Active TS/SCI w/Poly Clearance is required on day one. Typically requires a Bachelor's degree and a minimum of 3-5 years of prior relevant experience or a master's degree and minimum of 3 years of More ❯
Employment Type: Permanent
Salary: USD 90 Hourly
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Senior Linux System Administrator

High Wycombe, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, high wycombe col-narrow-left Client: G.Digital Location: high wycombe, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 6 Posted: 06.06.2025 Expiry Date: 21.07.2025 … 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 More ❯
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Senior Linux System Administrator

Swindon, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, swindon, wiltshire col-narrow-left Client: G.Digital Location: swindon, wiltshire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 … 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 More ❯
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Senior Linux System Administrator

Watford, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, watford, hertfordshire col-narrow-left Client: G.Digital Location: watford, hertfordshire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 … 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 More ❯
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Senior Linux System Administrator

Hull, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, kingston upon hull, east yorkshire col-narrow-left Client: G.Digital Location: kingston upon hull, east yorkshire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views … 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 More ❯
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Senior Linux System Administrator

Newcastle upon Tyne, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Social network you want to login/join with: Senior Linux System Administrator, newcastle-upon-tyne, tyne and wear col-narrow-left Client: G.Digital Location: newcastle-upon-tyne, tyne and wear, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right … 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 More ❯
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Senior Linux Systems Administrator - Cleared On-Site

Aurora, Colorado, United States
Volt
Move Forward with Volt Volt is immediately hiring for a Senior Linux Systems Administrator in Aurora, CO. You will be supporting a client's program in a classified environment as a Linux System Administrator. Responsibilities include building, maintainin More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Linux AWS Systems Administrator - Cleared On-Site with Security Clearance

Aurora, Colorado, United States
The Computer Merchant, Ltd
JOB TITLE: LINUX SYSTEMS ADMINISTRATOR LOCATION: AURORA, CO RATE RANGE: $88.00-93.00 PER HOUR JOB#: REQUIRED SKILLS: Typically requires a Bachelor's degree and a minimum of 5 years of prior relevant experience or a master's degree and minimum of 3 years of prior … or more of the following Professional Certifications: Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, CND. Experience administering Red Hat Linux based systems with minimal support, to include patching, creating/maintaining RPM packages, performance tuning, networking, user management (LDAP), and security hardening Deployment and administration of … systems in Amazon WebServices (AWS) Duration: 12 month(s) + Description/Comment: Linux System Administrator: Responsibilities include building, maintaining, and securing Information Technology systems and directly supporting customer mission-critical capabilities. You will work closely with program developers and system engineers to research More ❯
Employment Type: Permanent
Salary: USD 93 Hourly
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Senior Linux System Administrator

Bath, 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 … 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 ❯
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Senior Linux System Administrator

Aberdeen, Scotland, 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 … 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 ❯
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Senior Linux System Administrator

Stoke-on-Trent, 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 … 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 ❯
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Senior Linux System Administrator

Shrewsbury, 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 … shared rotation ( All within normal working hours Monday - Friday) Online job hunting tools 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 ❯
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Senior Linux System Administrator

Exeter, 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. Virtual job fairs 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 … 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 ❯
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Senior Linux System Administrator

Bradford, 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. Online job hunting tools 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 … 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 ❯
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Senior Linux Systems Administrator
10th Percentile
£68,625
25th Percentile
£70,313
Median
£73,750
75th Percentile
£75,000