Period
to 23 April 2019

The following table provides summary statistics for permanent job vacancies advertised in the East of England 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 23 April 2019 with a comparison to the same period in the previous 2 years.

CentOS Linux
England > East of England
6 months to
23 Apr 2019
Same period 2018 Same period 2017
Rank 210 317 309
Rank change year-on-year +107 -8 +47
Permanent jobs citing CentOS 83 54 47
As % of all permanent IT jobs advertised in the East of England 0.99% 0.42% 0.38%
As % of the Operating Systems category 3.53% 1.49% 1.59%
Number of salaries quoted 58 42 45
East of England median annual salary £40,000 £60,000 £47,500
Median salary % change year-on-year -33.33% +26.32% +26.67%
10th Percentile £33,750 £26,200 £41,000
90th Percentile £60,000 £75,000 £68,750
England median annual salary £52,500 £50,000 £50,000
% change year-on-year +5.00% - -

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 the East of England with a requirement for operating system skills.

All Operating Systems
East of England
Permanent vacancies with a requirement for operating system skills 2,354 3,619 2,962
As % of all permanent IT jobs advertised in the East of England 28.09% 28.02% 24.08%
Number of salaries quoted 1,763 2,682 2,361
East of England median annual salary £45,000 £45,000 £42,500
Median salary % change year-on-year - +5.88% +6.25%
10th Percentile £23,550 £25,000 £24,250
90th Percentile £65,000 £70,000 £62,500
England median annual salary £47,500 £47,500 £45,000
% change year-on-year - +5.56% +1.12%

CentOS
Job Vacancy Trend in the East of England

Job postings citing CentOS as a percentage of all IT jobs advertised in the East of England.

Job vacancy trend for CentOS in the East of England

CentOS
Salary Trend in the East of England

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

Salary trend for CentOS in the East of England

CentOS
Salary Histogram in the East of England

The salary distribution of IT jobs citing CentOS in the East of England over the 6 months to 23 April 2019.

Salary histogram for CentOS in the East of England

CentOS
Job Locations in the East of England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the East of England region over the 6 months to 23 April 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
Hertfordshire +68 38 £45,000 -25.00% 2
Bedfordshire +17 28 £40,000 -11.11%
Cambridgeshire +37 12 £48,750 -2.50% 5
Essex +40 3 £37,500 -25.00% 1
Suffolk +24 1 £55,000 -15.38%
Norfolk - 1 £48,000 -
CentOS
England

For the 6 months to 23 April 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 East of England region with a requirement for CentOS.

1 83 (100.00%) Linux
2 65 (78.31%) VMware
3 49 (59.04%) VMware Infrastructure
4 41 (49.40%) Microsoft Azure
4 41 (49.40%) DevOps
5 37 (44.58%) Ubuntu
6 33 (39.76%) Red Hat
7 31 (37.35%) Windows
7 31 (37.35%) Puppet
8 30 (36.14%) Ansible
8 30 (36.14%) Docker
9 28 (33.73%) Bash Shell
9 28 (33.73%) MySQL
9 28 (33.73%) ISO/IEC 27001
10 27 (32.53%) Nagios
11 26 (31.33%) DNS
11 26 (31.33%) High Availability
11 26 (31.33%) nginx
12 25 (30.12%) Python
13 24 (28.92%) PowerShell
13 24 (28.92%) Kubernetes
13 24 (28.92%) Windows Server 2012
14 23 (27.71%) Windows Server
15 22 (26.51%) Amazon AWS
15 22 (26.51%) SaaS
16 21 (25.30%) Apache
16 21 (25.30%) Configuration Management
17 20 (24.10%) Microsoft
17 20 (24.10%) Active Directory
17 20 (24.10%) Load Balancing

CentOS
Co-occurring IT Skills in the East of England 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 26 (31.33%) nginx
2 21 (25.30%) Apache
3 9 (10.84%) Elasticsearch
4 7 (8.43%) SharePoint
5 6 (7.23%) IIS
5 6 (7.23%) OpenStack
6 5 (6.02%) Exchange Server 2013
6 5 (6.02%) MS Exchange
7 4 (4.82%) Cloud Foundry
7 4 (4.82%) CloudStack
7 4 (4.82%) Confluence
7 4 (4.82%) Tomcat
8 3 (3.61%) WordPress
Applications
1 5 (6.02%) Microsoft Office
2 1 (1.20%) Stata
Business Applications
1 2 (2.41%) Odoo
Cloud Services
1 41 (49.40%) Microsoft Azure
2 22 (26.51%) Amazon AWS
2 22 (26.51%) SaaS
3 16 (19.28%) IaaS
4 13 (15.66%) Office 365
5 6 (7.23%) PaaS
6 5 (6.02%) AWS CloudFormation
6 5 (6.02%) Google Cloud Platform
7 4 (4.82%) DigitalOcean
7 4 (4.82%) Heroku
7 4 (4.82%) OneDrive
7 4 (4.82%) OpenShift
8 1 (1.20%) Amazon CloudWatch
8 1 (1.20%) Datadog
Communications & Networking
1 26 (31.33%) DNS
2 19 (22.89%) Firewall
2 19 (22.89%) SSL
2 19 (22.89%) VPN
3 18 (21.69%) HTTP
4 15 (18.07%) DHCP
5 14 (16.87%) SNMP
6 11 (13.25%) SMTP
7 10 (12.05%) SAN
8 8 (9.64%) TCP/IP
9 7 (8.43%) LAN
9 7 (8.43%) Reverse Proxy
9 7 (8.43%) WAN
9 7 (8.43%) WLAN
10 6 (7.23%) Converged Networks
10 6 (7.23%) Unified Communications
10 6 (7.23%) VRRP
11 4 (4.82%) BIG-IP
11 4 (4.82%) Cisco Nexus
11 4 (4.82%) FabricPath
Database & Business Intelligence
1 28 (33.73%) MySQL
2 13 (15.66%) MariaDB
2 13 (15.66%) SQL Server
3 11 (13.25%) NoSQL
4 9 (10.84%) PostgreSQL
4 9 (10.84%) Redis
5 8 (9.64%) MongoDB
6 7 (8.43%) Amazon RDS
7 5 (6.02%) Azure SQL Database
8 4 (4.82%) Apache Cassandra
9 1 (1.20%) Big Data
Development Applications
1 20 (24.10%) Git (software)
2 8 (9.64%) Jenkins
2 8 (9.64%) Visual Studio Team System
3 5 (6.02%) Hudson
3 5 (6.02%) Mercurial
3 5 (6.02%) Subversion
4 4 (4.82%) Octopus Deploy
4 4 (4.82%) Sonatype Nexus
5 1 (1.20%) Atlassian Bamboo
5 1 (1.20%) JIRA
5 1 (1.20%) Travis CI
5 1 (1.20%) Vagrant
General
1 6 (7.23%) Finance
2 4 (4.82%) Retail
3 3 (3.61%) Banking
3 3 (3.61%) Financial Institution
4 1 (1.20%) Electronics
4 1 (1.20%) Manufacturing
Job Titles
1 32 (38.55%) Linux Engineer
2 19 (22.89%) DevOps Engineer
2 19 (22.89%) Linux/Unix DevOps
3 18 (21.69%) Linux DevOps Engineer
4 14 (16.87%) Infrastructure Engineer
5 9 (10.84%) Administrator
5 9 (10.84%) Systems Administrator
6 8 (9.64%) Linux Administrator
6 8 (9.64%) Linux Systems Administrator
7 7 (8.43%) Architect
8 6 (7.23%) Developer
8 6 (7.23%) Technical Leader
9 5 (6.02%) Cloud Engineer
9 5 (6.02%) Lead DevOps
9 5 (6.02%) Systems Engineer
10 4 (4.82%) AWS Engineer
10 4 (4.82%) Azure Engineer
10 4 (4.82%) DevOps Systems Engineer
10 4 (4.82%) Infrastructure Support
10 4 (4.82%) Linux Systems Engineer
Libraries, Frameworks & Software Standards
1 20 (24.10%) Elastic Stack
2 18 (21.69%) LAMP
3 10 (12.05%) CSS
3 10 (12.05%) LDAP
4 9 (10.84%) LEMP Stack
5 8 (9.64%) HTML
6 5 (6.02%) Node.js
7 4 (4.82%) Kafka
7 4 (4.82%) Web Services
8 3 (3.61%) Kohana
8 3 (3.61%) Symfony
9 2 (2.41%) LAPP Stack
10 1 (1.20%) Ajax
10 1 (1.20%) AngularJS
10 1 (1.20%) CSS3
10 1 (1.20%) Highcharts JS
10 1 (1.20%) HTML5
10 1 (1.20%) jQuery
10 1 (1.20%) OpenVZ
10 1 (1.20%) Twitter Bootstrap
Miscellaneous
1 20 (24.10%) PKI
2 15 (18.07%) Replication
3 11 (13.25%) Hybrid Cloud
4 10 (12.05%) Data Centre
4 10 (12.05%) Self-Motivation
5 7 (8.43%) Analytical Skills
5 7 (8.43%) CMDB
5 7 (8.43%) Public Cloud
6 4 (4.82%) Renewable Energy
7 1 (1.20%) Cybercrime
7 1 (1.20%) Linux Command Line
7 1 (1.20%) Management Information System
7 1 (1.20%) Social Network
7 1 (1.20%) Xbox
Operating Systems
1 83 (100.00%) Linux
2 37 (44.58%) Ubuntu
3 31 (37.35%) Windows
4 24 (28.92%) Windows Server 2012
5 23 (27.71%) Windows Server
6 19 (22.89%) Debian
7 15 (18.07%) Red Hat Enterprise Linux
8 8 (9.64%) Solaris
8 8 (9.64%) Windows Server 2008
9 7 (8.43%) Windows 7
10 4 (4.82%) SUSE
10 4 (4.82%) Windows 10
10 4 (4.82%) Windows 8
11 3 (3.61%) Fedora
11 3 (3.61%) Unix
12 1 (1.20%) DC/OS
Processes & Methodologies
1 41 (49.40%) DevOps
2 26 (31.33%) High Availability
3 21 (25.30%) Configuration Management
4 20 (24.10%) Load Balancing
5 18 (21.69%) Infrastructure Engineering
5 18 (21.69%) Open Source
6 16 (19.28%) Agile Software Development
6 16 (19.28%) Problem-Solving
7 12 (14.46%) Workflow
8 10 (12.05%) Records Management
8 10 (12.05%) Runbook
9 9 (10.84%) Continuous Integration
9 9 (10.84%) Stakeholder Management
9 9 (10.84%) Test Automation
10 8 (9.64%) Deployment Automation
10 8 (9.64%) Trend Analysis
10 8 (9.64%) Web Development
11 7 (8.43%) Infrastructure Transformation
11 7 (8.43%) Proactive Monitoring
11 7 (8.43%) Server Virtualisation
Programming Languages
1 28 (33.73%) Bash Shell
2 25 (30.12%) Python
3 24 (28.92%) PowerShell
4 18 (21.69%) SQL
5 15 (18.07%) PHP
6 14 (16.87%) Perl
7 9 (10.84%) PHP 5
7 9 (10.84%) PHP 7
7 9 (10.84%) Ruby
8 8 (9.64%) JavaScript
9 5 (6.02%) Go
9 5 (6.02%) VBScript
10 2 (2.41%) Shell Script
11 1 (1.20%) MATLAB
11 1 (1.20%) R
Qualifications
1 10 (12.05%) LPIC
1 10 (12.05%) RHCE
1 10 (12.05%) RHCT
2 4 (4.82%) Security Cleared
3 2 (2.41%) SC Cleared
4 1 (1.20%) DV Cleared
Quality Assurance & Compliance
1 28 (33.73%) ISO/IEC 27001
2 11 (13.25%) PCI DSS
3 3 (3.61%) SLA
System Software
1 49 (59.04%) VMware Infrastructure
2 30 (36.14%) Docker
3 20 (24.10%) Active Directory
4 17 (20.48%) Hyper-V
5 12 (14.46%) VMware ESXi
6 8 (9.64%) VMware NSX
6 8 (9.64%) XenDesktop
7 7 (8.43%) Terminal Services
8 6 (7.23%) vSphere
9 4 (4.82%) iptables
9 4 (4.82%) KVM
9 4 (4.82%) Samba
10 3 (3.61%) Virtual Machines
11 2 (2.41%) LXC
11 2 (2.41%) VirtualBox
12 1 (1.20%) GPFS
12 1 (1.20%) Xen
12 1 (1.20%) XenApp
12 1 (1.20%) XenServer
Systems Management
1 31 (37.35%) Puppet
2 30 (36.14%) Ansible
3 27 (32.53%) Nagios
4 24 (28.92%) Kubernetes
5 18 (21.69%) HAProxy
5 18 (21.69%) Terraform
6 15 (18.07%) Prometheus
6 15 (18.07%) yum
7 13 (15.66%) Opscode Chef
7 13 (15.66%) vRealize
8 12 (14.46%) Docker Swarm
8 12 (14.46%) SCCM
8 12 (14.46%) SCOM
9 7 (8.43%) Failover Clustering
9 7 (8.43%) SCVMM
10 5 (6.02%) HP Data Protector
10 5 (6.02%) Kibana
10 5 (6.02%) logstash
10 5 (6.02%) Packer
10 5 (6.02%) Rsyslog
Vendors
1 65 (78.31%) VMware
2 33 (39.76%) Red Hat
3 20 (24.10%) Microsoft
4 14 (16.87%) Cisco
5 13 (15.66%) Oracle
6 12 (14.46%) HP
7 8 (9.64%) Citrix
7 8 (9.64%) IBM
8 7 (8.43%) Dell
8 7 (8.43%) EMC
8 7 (8.43%) Hitachi
8 7 (8.43%) NetApp
8 7 (8.43%) Snow
8 7 (8.43%) Sybase
8 7 (8.43%) Symantec
9 5 (6.02%) Veeam
10 4 (4.82%) F5
10 4 (4.82%) Rackspace
11 3 (3.61%) New Relic
12 2 (2.41%) Juniper