Period
to 20 August 2018

The following table provides summary statistics for permanent job vacancies advertised in Central London 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 August 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
London > Central London
6 months to
20 Aug 2018
Same period 2017 Same period 2016
Rank 293 237 331
Rank change year-on-year -56 +94 +24
Permanent jobs citing CentOS 101 133 85
As % of all permanent IT jobs advertised in Central London 0.72% 1.07% 0.52%
As % of the Operating Systems category 3.14% 4.03% 1.98%
Number of salaries quoted 98 129 72
Central London median annual salary £60,000 £60,000 £56,250
Median salary % change year-on-year - +6.67% +7.14%
10th Percentile £37,500 £36,650 £41,600
90th Percentile £85,000 £86,250 £85,000
London median annual salary £60,000 £62,500 £55,000
% change year-on-year -4.00% +13.64% -

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 Central London with a requirement for operating system skills.

All Operating Systems
Central London
Permanent vacancies with a requirement for operating system skills 3,214 3,302 4,292
As % of all permanent IT jobs advertised in Central London 22.81% 26.56% 26.44%
Number of salaries quoted 2,897 2,969 3,853
Central London median annual salary £60,000 £52,500 £54,000
Median salary % change year-on-year +14.29% -2.78% +8.00%
10th Percentile £29,700 £29,000 £30,000
90th Percentile £90,000 £85,000 £82,500
London median annual salary £57,500 £55,000 £55,000
% change year-on-year +4.55% - +4.76%

CentOS
Job Vacancy Trend in Central London

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

Job vacancy trend for CentOS in Central London

CentOS
Salary Trend in Central London

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

Salary trend for CentOS in Central London

CentOS
Salary Histogram in Central London

The salary distribution of IT jobs citing CentOS in Central London over the 6 months to 20 August 2018.

Salary histogram for CentOS in Central London

CentOS
Job Locations in Central London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing CentOS within the Central London region over the 6 months to 20 August 2018. 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
City of London -69 63 £60,000 - 15
City of Westminster +16 8 £53,750 +19.44%
Camden - 3 £40,000 -
West End of London -14 2 £45,000 - 5
CentOS
London

For the 6 months to 20 August 2018, 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 Central London region with a requirement for CentOS.

1 101 (100.00%) Linux
2 60 (59.41%) DevOps
3 57 (56.44%) Amazon AWS
4 55 (54.46%) Red Hat
5 46 (45.54%) Ansible
6 43 (42.57%) Windows
7 42 (41.58%) Microsoft Azure
8 38 (37.62%) Red Hat Enterprise Linux
9 35 (34.65%) Ubuntu
10 33 (32.67%) Configuration Management
11 31 (30.69%) Firewall
11 31 (30.69%) Python
12 27 (26.73%) Finance
12 27 (26.73%) Puppet
12 27 (26.73%) Opscode Chef
13 26 (25.74%) Bash Shell
14 24 (23.76%) VMware
14 24 (23.76%) Open Source
14 24 (23.76%) VMware Infrastructure
15 22 (21.78%) Git (software)
15 22 (21.78%) Terraform
16 21 (20.79%) Web Services
16 21 (20.79%) Perl
17 20 (19.80%) Microsoft
18 19 (18.81%) Cisco
18 19 (18.81%) LAN
18 19 (18.81%) Java
19 18 (17.82%) MySQL
20 17 (16.83%) SQL Server
20 17 (16.83%) Tomcat

CentOS
Co-occurring IT Skills in Central London 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 17 (16.83%) Tomcat
2 15 (14.85%) Apache
3 11 (10.89%) IIS
4 9 (8.91%) Confluence
5 5 (4.95%) nginx
6 4 (3.96%) OpenStack
6 4 (3.96%) WebSphere
6 4 (3.96%) WebSphere Application Server
7 3 (2.97%) Elasticsearch
8 2 (1.98%) Apache Solr
8 2 (1.98%) CMS
9 1 (0.99%) Adobe Experience Manager
9 1 (0.99%) Exchange Server 2013
Applications
1 1 (0.99%) HipChat
1 1 (0.99%) Spreadsheet
Business Applications
1 8 (7.92%) MetaTrader
2 4 (3.96%) Magento
2 4 (3.96%) SAP Hybris
3 2 (1.98%) Remedy ITSM
Cloud Services
1 57 (56.44%) Amazon AWS
2 42 (41.58%) Microsoft Azure
3 8 (7.92%) Amazon EC2
3 8 (7.92%) NuGet
4 7 (6.93%) Cloud Computing
5 6 (5.94%) SaaS
6 5 (4.95%) Amazon S3
6 5 (4.95%) Google Cloud Platform
7 4 (3.96%) AWS CloudFormation
7 4 (3.96%) Route 53
8 3 (2.97%) Cloudflare
9 2 (1.98%) IBM Cloud
9 2 (1.98%) Office 365
9 2 (1.98%) SoftLayer
10 1 (0.99%) AWS Lambda
10 1 (0.99%) Azure Active Directory
10 1 (0.99%) CloudBees
10 1 (0.99%) GitHub
10 1 (0.99%) IaaS
10 1 (0.99%) Virtual Private Cloud
Communications & Networking
1 31 (30.69%) Firewall
2 19 (18.81%) LAN
3 14 (13.86%) Network Security
4 13 (12.87%) Cisco ASA
5 12 (11.88%) Internet
6 11 (10.89%) WAN
7 10 (9.90%) NetScaler
8 9 (8.91%) TCP/IP
9 6 (5.94%) DNS
9 6 (5.94%) Intrusion Detection
9 6 (5.94%) Kerberos
9 6 (5.94%) VPN
10 5 (4.95%) SSH
11 4 (3.96%) SAN
11 4 (3.96%) SSL
12 3 (2.97%) BGP
12 3 (2.97%) Cisco IOS
13 2 (1.98%) IPsec
13 2 (1.98%) VLAN
13 2 (1.98%) Wireshark
Database & Business Intelligence
1 18 (17.82%) MySQL
2 17 (16.83%) SQL Server
3 8 (7.92%) SQL Server 2012
4 6 (5.94%) Apache Cassandra
5 4 (3.96%) Amazon RDS
5 4 (3.96%) NoSQL
5 4 (3.96%) Redis
5 4 (3.96%) Relational Database
6 3 (2.97%) Apache Hive
6 3 (2.97%) Big Data
6 3 (2.97%) HBase
6 3 (2.97%) MariaDB
6 3 (2.97%) MongoDB
6 3 (2.97%) PostgreSQL
6 3 (2.97%) Scylla
7 1 (0.99%) Data Warehouse
7 1 (0.99%) Hadoop
7 1 (0.99%) Oracle Database
7 1 (0.99%) RDBMS
Development Applications
1 22 (21.78%) Git (software)
2 17 (16.83%) Jenkins
3 14 (13.86%) JIRA
4 11 (10.89%) Maven
5 9 (8.91%) Ant
5 9 (8.91%) TeamCity
6 8 (7.92%) CA Release Automation
6 8 (7.92%) Eclipse
6 8 (7.92%) Fiddler
6 8 (7.92%) IntelliJ
6 8 (7.92%) ReSharper
6 8 (7.92%) Team Foundation Server
6 8 (7.92%) Visual Studio
7 7 (6.93%) Bitbucket
7 7 (6.93%) Subversion
8 6 (5.94%) Atlassian Bamboo
9 3 (2.97%) Octopus Deploy
9 3 (2.97%) Visual Studio Team System
10 2 (1.98%) Vagrant
11 1 (0.99%) GitLab
General
1 27 (26.73%) Finance
2 9 (8.91%) Banking
3 7 (6.93%) Financial Institution
4 6 (5.94%) Telecoms
5 5 (4.95%) Legal
6 4 (3.96%) Law
7 3 (2.97%) Marketing
8 2 (1.98%) Games
8 2 (1.98%) Online Betting
8 2 (1.98%) Spanish Language
9 1 (0.99%) Advertising
Job Titles
1 45 (44.55%) DevOps Engineer
2 31 (30.69%) Administrator
3 29 (28.71%) Systems Administrator
4 25 (24.75%) Linux Engineer
4 25 (24.75%) Systems Engineer
5 21 (20.79%) Automation Engineer
5 21 (20.79%) Linux Administrator
5 21 (20.79%) Linux Systems Administrator
6 19 (18.81%) Linux Systems Engineer
6 19 (18.81%) Linux/Unix DevOps
7 18 (17.82%) DevOps Administrator
7 18 (17.82%) DevOps Systems Engineer
8 16 (15.84%) Cloud Engineer
9 15 (14.85%) Linux DevOps Administrator
9 15 (14.85%) Linux DevOps Engineer
10 13 (12.87%) Cloud Administrator
10 13 (12.87%) Cloud Automation Engineer
11 12 (11.88%) Network Systems Engineer
12 9 (8.91%) Support Engineer
13 8 (7.92%) Analyst
Libraries, Frameworks & Software Standards
1 21 (20.79%) Web Services
2 12 (11.88%) Elastic Stack
3 11 (10.89%) JSON
3 11 (10.89%) XML
4 10 (9.90%) .NET
5 8 (7.92%) ActiveMQ
5 8 (7.92%) ASP.NET
5 8 (7.92%) ASP.NET MVC
5 8 (7.92%) ASP.NET Web API
5 8 (7.92%) REST
5 8 (7.92%) SOAP
5 8 (7.92%) TIBCO EMS
6 7 (6.93%) LAMP
6 7 (6.93%) LDAP
7 6 (5.94%) Node.js
8 4 (3.96%) CSS
8 4 (3.96%) HTML
8 4 (3.96%) RESTful
9 3 (2.97%) Kafka
9 3 (2.97%) LEMP Stack
Miscellaneous
1 9 (8.91%) Management Information System
2 8 (7.92%) Fintech
3 6 (5.94%) Cyber Kill Chain
3 6 (5.94%) Public Cloud
4 3 (2.97%) Enterprise Software
4 3 (2.97%) Self-Motivation
5 2 (1.98%) Analytical Skills
5 2 (1.98%) Computer Science
5 2 (1.98%) Data Centre
5 2 (1.98%) Greenfield Project
5 2 (1.98%) Hedge funds
5 2 (1.98%) Private Cloud
6 1 (0.99%) Blog
6 1 (0.99%) Enterprise Cloud
6 1 (0.99%) Linux Command Line
Operating Systems
1 101 (100.00%) Linux
2 43 (42.57%) Windows
3 38 (37.62%) Red Hat Enterprise Linux
4 35 (34.65%) Ubuntu
5 17 (16.83%) Windows Server 2012
6 16 (15.84%) Unix
7 15 (14.85%) Windows Server
8 10 (9.90%) Windows Server 2008
9 7 (6.93%) Debian
10 6 (5.94%) AIX
10 6 (5.94%) HPUX
10 6 (5.94%) Windows Server 2003
10 6 (5.94%) Windows XP
11 4 (3.96%) Mac OS
12 2 (1.98%) Solaris
12 2 (1.98%) VMS
13 1 (0.99%) Amazon Linux
13 1 (0.99%) SUSE
13 1 (0.99%) Windows 10
13 1 (0.99%) Windows 7
Processes & Methodologies
1 60 (59.41%) DevOps
2 33 (32.67%) Configuration Management
3 24 (23.76%) Open Source
4 14 (13.86%) Change Management
5 12 (11.88%) Service Management
6 10 (9.90%) Agile Software Development
7 9 (8.91%) Continuous Integration
8 8 (7.92%) ITSM
8 8 (7.92%) MVC
8 8 (7.92%) Release Management
9 7 (6.93%) Analytics
9 7 (6.93%) Change Control
9 7 (6.93%) Information Security
9 7 (6.93%) ITIL
10 6 (5.94%) Cyber Intelligence
10 6 (5.94%) Data Protection
10 6 (5.94%) Forensic Analysis
10 6 (5.94%) Malware Analysis
10 6 (5.94%) SIEM
10 6 (5.94%) Threat Intelligence
Programming Languages
1 31 (30.69%) Python
2 26 (25.74%) Bash Shell
3 21 (20.79%) Perl
4 19 (18.81%) Java
5 13 (12.87%) Ruby
6 12 (11.88%) JavaScript
6 12 (11.88%) PowerShell
7 11 (10.89%) SQL
8 8 (7.92%) C#
8 8 (7.92%) PHP
9 6 (5.94%) Shell Script
10 2 (1.98%) C
10 2 (1.98%) Go
11 1 (0.99%) C++
11 1 (0.99%) Clojure
11 1 (0.99%) Groovy
11 1 (0.99%) Haskell
11 1 (0.99%) MATLAB
11 1 (0.99%) OCaml
11 1 (0.99%) R
Qualifications
1 6 (5.94%) AWS Certification
1 6 (5.94%) CISM
1 6 (5.94%) CISSP
2 5 (4.95%) Degree
3 3 (2.97%) Computer Science Degree
4 1 (0.99%) Numerate Degree
Quality Assurance & Compliance
1 10 (9.90%) QA
2 4 (3.96%) GCP
System Software
1 24 (23.76%) VMware Infrastructure
2 17 (16.83%) Docker
3 10 (9.90%) Active Directory
4 6 (5.94%) Hyper-V
5 4 (3.96%) KVM
5 4 (3.96%) vSphere
6 3 (2.97%) HDFS
6 3 (2.97%) iptables
6 3 (2.97%) StorNext
6 3 (2.97%) VirtualBox
6 3 (2.97%) Xsan
7 2 (1.98%) Apache ZooKeeper
7 2 (1.98%) QEMU
7 2 (1.98%) XenServer
8 1 (0.99%) Ceph
8 1 (0.99%) pfSense
8 1 (0.99%) Samba
8 1 (0.99%) Varnish
8 1 (0.99%) VMware NSX
8 1 (0.99%) Xen
Systems Management
1 46 (45.54%) Ansible
2 27 (26.73%) Opscode Chef
2 27 (26.73%) Puppet
3 22 (21.78%) Terraform
4 12 (11.88%) Kibana
4 12 (11.88%) Kubernetes
5 11 (10.89%) logstash
6 9 (8.91%) Nagios
7 8 (7.92%) Perfmon
8 6 (5.94%) HAProxy
9 5 (4.95%) Icinga
9 5 (4.95%) Salt
10 4 (3.96%) Docker Swarm
10 4 (3.96%) LiteSpeed
11 3 (2.97%) Consul
11 3 (2.97%) Jamf Pro
11 3 (2.97%) Oozie
11 3 (2.97%) Packer
11 3 (2.97%) Prometheus
12 2 (1.98%) Grafana
Vendors
1 55 (54.46%) Red Hat
2 24 (23.76%) VMware
3 20 (19.80%) Microsoft
4 19 (18.81%) Cisco
5 9 (8.91%) SolarWinds
6 8 (7.92%) TIBCO
7 7 (6.93%) Oracle
8 6 (5.94%) IBM
8 6 (5.94%) New Relic
8 6 (5.94%) SaltStack
9 5 (4.95%) Sun
10 4 (3.96%) ATG
10 4 (3.96%) Atlassian
10 4 (3.96%) Google
10 4 (3.96%) HP
10 4 (3.96%) hybris
10 4 (3.96%) Remedy
10 4 (3.96%) SAP
10 4 (3.96%) ServiceNow
11 3 (2.97%) Supermicro