Period
to 20 July 2019

The following table provides summary statistics for permanent job vacancies advertised in Surrey with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 6 months to 20 July 2019 with a comparison to the same period in the previous 2 years.

CentOS Linux
South East > Surrey
6 months to
20 Jul 2019
Same period 2018 Same period 2017
Rank 169 177 198
Rank change year-on-year +8 +21 +14
Permanent jobs citing CentOS 48 59 53
As % of all permanent IT jobs advertised in Surrey 1.10% 1.12% 0.94%
As % of the Operating Systems category 4.08% 4.18% 3.04%
Number of salaries quoted 47 56 53
Surrey median annual salary £55,000 £67,000 £60,000
Median salary % change year-on-year -17.91% +11.67% +9.09%
10th Percentile £26,250 £36,875 £40,000
90th Percentile £75,000 £75,000 £82,500
South East median annual salary £52,000 £55,000 £47,500
% change year-on-year -5.45% +15.79% -9.52%

CentOS is in the Operating Systems category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Surrey with a requirement for operating system skills.

All Operating Systems
Surrey
Permanent vacancies with a requirement for operating system skills 1,176 1,411 1,745
As % of all permanent IT jobs advertised in Surrey 27.03% 26.77% 30.84%
Number of salaries quoted 1,018 1,208 1,545
Surrey median annual salary £45,000 £42,500 £42,500
Median salary % change year-on-year +5.88% - -5.56%
10th Percentile £24,976 £24,500 £23,500
90th Percentile £77,500 £67,500 £63,750
South East median annual salary £45,000 £42,500 £41,500
% change year-on-year +5.88% +2.41% -2.35%

CentOS
Job Vacancy Trend in Surrey

Job postings citing CentOS as a percentage of all IT jobs advertised in Surrey.

Job vacancy trend for CentOS in Surrey

CentOS
Salary Trend in Surrey

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CentOS in Surrey.

Salary trend for CentOS in Surrey

CentOS
Salary Histogram in Surrey

The salary distribution of IT jobs citing CentOS in Surrey over the 6 months to 20 July 2019.

Salary histogram for CentOS in Surrey

CentOS
Job Locations in Surrey

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the Surrey region over the 6 months to 20 July 2019. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Woking - 12 £27,500 -
Staines -4 11 £75,000 +1.35%
Redhill +13 10 £63,750 +59.38%
Camberley - 4 £75,000 -
Guildford -9 2 £60,000 +20.00% 1
Leatherhead +5 1 £55,000 -8.33% 2
Chertsey -6 1 £28,000 +7.69%
CentOS
South East

For the 6 months to 20 July 2019, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Surrey region with a requirement for CentOS.

1 47 (97.92%) Linux
2 37 (77.08%) Red Hat Enterprise Linux
3 34 (70.83%) Red Hat
4 22 (45.83%) Windows
5 20 (41.67%) Python
6 19 (39.58%) DNS
7 18 (37.50%) ITIL
8 16 (33.33%) SQL
8 16 (33.33%) Windows Server
9 15 (31.25%) Microsoft
9 15 (31.25%) Hyper-V
9 15 (31.25%) Microsoft Azure
10 14 (29.17%) Perl
11 13 (27.08%) Active Directory
11 13 (27.08%) TCP/IP
11 13 (27.08%) VPN
11 13 (27.08%) Firewall
11 13 (27.08%) Finance
11 13 (27.08%) Shell Script
11 13 (27.08%) VLAN
12 12 (25.00%) WSUS
12 12 (25.00%) Reverse Proxy
12 12 (25.00%) PCI DSS
12 12 (25.00%) Firmware
12 12 (25.00%) CA
12 12 (25.00%) Service Management
12 12 (25.00%) Change Management
12 12 (25.00%) DHCP
12 12 (25.00%) HTTPS
12 12 (25.00%) SLA

CentOS
Co-occurring IT Skills in Surrey by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 12 (25.00%) IIS
2 4 (8.33%) GlassFish
2 4 (8.33%) nginx
Cloud Services
1 15 (31.25%) Microsoft Azure
2 8 (16.67%) Amazon AWS
3 7 (14.58%) SaaS
4 4 (8.33%) GitHub
5 3 (6.25%) Amazon CloudWatch
5 3 (6.25%) AWS CloudFormation
5 3 (6.25%) Datadog
5 3 (6.25%) Google Cloud Platform
6 1 (2.08%) Office 365
6 1 (2.08%) Virtual Private Cloud
Communications & Networking
1 19 (39.58%) DNS
2 13 (27.08%) Firewall
2 13 (27.08%) TCP/IP
2 13 (27.08%) VLAN
2 13 (27.08%) VPN
3 12 (25.00%) DHCP
3 12 (25.00%) HTTPS
3 12 (25.00%) Reverse Proxy
4 9 (18.75%) SAN
5 8 (16.67%) Fibre Channel
6 5 (10.42%) HTTP
7 2 (4.17%) Internet
8 1 (2.08%) IPsec
8 1 (2.08%) iSCSI
8 1 (2.08%) SSH
8 1 (2.08%) Wi-Fi
Database & Business Intelligence
1 12 (25.00%) SQL Server
2 10 (20.83%) MySQL
3 6 (12.50%) PostgreSQL
4 4 (8.33%) MariaDB
4 4 (8.33%) NoSQL
5 2 (4.17%) MongoDB
5 2 (4.17%) Relational Database
Development Applications
1 5 (10.42%) Git (software)
2 4 (8.33%) GitLab
2 4 (8.33%) Jenkins
3 3 (6.25%) Atlassian Bamboo
3 3 (6.25%) Travis CI
3 3 (6.25%) Vagrant
4 1 (2.08%) JIRA
4 1 (2.08%) TeamCity
General
1 13 (27.08%) Finance
2 1 (2.08%) Games
2 1 (2.08%) Korean Language
Job Titles
1 16 (33.33%) Analyst
2 15 (31.25%) Administrator
3 12 (25.00%) 2nd Line Support
3 12 (25.00%) 2nd Line Support Analyst
3 12 (25.00%) Support Analyst
4 10 (20.83%) Systems Administrator
5 7 (14.58%) Linux Engineer
5 7 (14.58%) Linux/Unix DevOps
6 5 (10.42%) Cloud Engineer
6 5 (10.42%) Linux Administrator
6 5 (10.42%) Linux Systems Administrator
6 5 (10.42%) Senior Linux Engineer
6 5 (10.42%) Senior Systems Administrator
6 5 (10.42%) Unix Administrator
7 4 (8.33%) DBA
7 4 (8.33%) DevOps Engineer
7 4 (8.33%) Systems Analyst
8 3 (6.25%) Lead DevOps Engineer
8 3 (6.25%) Linux DevOps Engineer
8 3 (6.25%) Senior DevOps Engineer
Libraries, Frameworks & Software Standards
1 7 (14.58%) Elastic Stack
2 4 (8.33%) Java EE
3 2 (4.17%) MEAN Stack
4 1 (2.08%) 802.1X
Miscellaneous
1 5 (10.42%) Digital Media
1 5 (10.42%) Video\Live Streaming
2 4 (8.33%) Data Centre
2 4 (8.33%) Linux Command Line
2 4 (8.33%) Public Cloud
3 1 (2.08%) e-Learning
Operating Systems
1 47 (97.92%) Linux
2 37 (77.08%) Red Hat Enterprise Linux
3 22 (45.83%) Windows
4 16 (33.33%) Windows Server
5 11 (22.92%) Unix
6 10 (20.83%) Solaris
7 9 (18.75%) Ubuntu
8 3 (6.25%) DC/OS
8 3 (6.25%) Windows Server 2008
9 1 (2.08%) Debian
9 1 (2.08%) VMS
Processes & Methodologies
1 18 (37.50%) ITIL
2 12 (25.00%) Antivirus Management
2 12 (25.00%) Change Management
2 12 (25.00%) Data Loss Prevention
2 12 (25.00%) Network Monitoring
2 12 (25.00%) Security Patching
2 12 (25.00%) Service Management
3 10 (20.83%) DevOps
4 8 (16.67%) Database Tuning
5 7 (14.58%) High Availability
6 6 (12.50%) Benchmarking
6 6 (12.50%) Load Balancing
7 5 (10.42%) Performance Tuning
8 4 (8.33%) Data Architecture
8 4 (8.33%) Incident Management
8 4 (8.33%) ITSM
8 4 (8.33%) Tech Ops
8 4 (8.33%) User Acceptance Testing
9 3 (6.25%) Agile Software Development
9 3 (6.25%) Configuration Management
Programming Languages
1 20 (41.67%) Python
2 16 (33.33%) SQL
3 14 (29.17%) Perl
4 13 (27.08%) Shell Script
5 10 (20.83%) Java
6 8 (16.67%) AWK
6 8 (16.67%) Bourne shell
6 8 (16.67%) Korn
6 8 (16.67%) Ruby
7 6 (12.50%) Bash Shell
8 5 (10.42%) JavaScript
8 5 (10.42%) PHP
9 4 (8.33%) Go
10 1 (2.08%) C++
Qualifications
1 12 (25.00%) Cisco Certification
1 12 (25.00%) ITIL Foundation Certificate
2 5 (10.42%) Degree
3 4 (8.33%) SC Cleared
3 4 (8.33%) Security Cleared
4 2 (4.17%) Microsoft Certification
4 2 (4.17%) OCA
4 2 (4.17%) OCP
4 2 (4.17%) Oracle Certification
4 2 (4.17%) RHCA
4 2 (4.17%) RHCE
4 2 (4.17%) RHCSA
Quality Assurance & Compliance
1 12 (25.00%) PCI DSS
1 12 (25.00%) SLA
System Software
1 15 (31.25%) Hyper-V
2 13 (27.08%) Active Directory
3 12 (25.00%) Firmware
4 8 (16.67%) Veritas Cluster Server
5 7 (14.58%) Docker
5 7 (14.58%) VMware Infrastructure
6 4 (8.33%) Apache ZooKeeper
6 4 (8.33%) etcd
7 3 (6.25%) Virtual Machines
7 3 (6.25%) VirtualBox
8 1 (2.08%) GlusterFS
8 1 (2.08%) vSphere
Systems Management
1 12 (25.00%) Perfmon
1 12 (25.00%) WSUS
2 10 (20.83%) Ansible
3 8 (16.67%) NetBackup
3 8 (16.67%) Oracle ZFS
3 8 (16.67%) Puppet
3 8 (16.67%) Red Hat Satellite
3 8 (16.67%) Red Hat Spacewalk
4 7 (14.58%) Docker Swarm
4 7 (14.58%) Kubernetes
4 7 (14.58%) Packer
4 7 (14.58%) Terraform
5 4 (8.33%) Consul
5 4 (8.33%) Grafana
5 4 (8.33%) HAProxy
5 4 (8.33%) Opscode Chef
5 4 (8.33%) Prometheus
6 1 (2.08%) Nagios
6 1 (2.08%) Veritas Storage Foundation
Vendors
1 34 (70.83%) Red Hat
2 15 (31.25%) Microsoft
3 12 (25.00%) CA
3 12 (25.00%) Cisco
4 10 (20.83%) Oracle
5 9 (18.75%) VMware
6 8 (16.67%) Brocade
6 8 (16.67%) Centrify
6 8 (16.67%) Sun
6 8 (16.67%) Veritas
7 6 (12.50%) BT
7 6 (12.50%) HP
7 6 (12.50%) Sybase
8 3 (6.25%) Google
8 3 (6.25%) New Relic
8 3 (6.25%) Splunk
9 1 (2.08%) Perforce
9 1 (2.08%) SolarWinds
9 1 (2.08%) Sophos
9 1 (2.08%) Virgin Media