Period
to 18 October 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 18 October 2018 with a comparison to the same period in the previous 2 years.

CentOS Linux
London > Central London
6 months to
18 Oct 2018
Same period 2017 Same period 2016
Rank 282 255 333
Rank change year-on-year -27 +78 +17
Permanent jobs citing CentOS 102 104 71
As % of all permanent IT jobs advertised in Central London 0.72% 0.85% 0.47%
As % of the Operating Systems category 3.12% 3.35% 1.84%
Number of salaries quoted 97 100 59
Central London median annual salary £57,500 £65,000 £50,000
Median salary % change year-on-year -11.54% +30.00% -9.09%
10th Percentile £37,500 £37,450 £37,500
90th Percentile £87,500 £85,000 £76,000
London median annual salary £58,000 £60,000 £55,000
% change year-on-year -3.33% +9.09% -

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 3,272 3,104 3,850
As % of all permanent IT jobs advertised in Central London 23.18% 25.27% 25.74%
Number of salaries quoted 2,917 2,790 3,426
Central London median annual salary £58,500 £55,000 £54,000
Median salary % change year-on-year +6.36% +1.85% +2.86%
10th Percentile £29,000 £30,000 £30,000
90th Percentile £91,250 £85,000 £83,750
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 18 October 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 18 October 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 -41 68 £51,000 -21.54% 16
City of Westminster +16 9 £52,500 +16.67%
Camden - 5 £40,000 -
West End of London -10 4 £45,000 - 7
CentOS
London

For the 6 months to 18 October 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.

1 102 (100.00%) Linux
2 66 (64.71%) Red Hat
3 53 (51.96%) DevOps
4 49 (48.04%) Ansible
4 49 (48.04%) Amazon AWS
5 42 (41.18%) Windows
6 37 (36.27%) Configuration Management
7 36 (35.29%) Microsoft Azure
8 33 (32.35%) Opscode Chef
9 32 (31.37%) Red Hat Enterprise Linux
10 30 (29.41%) Open Source
11 29 (28.43%) Bash Shell
11 29 (28.43%) Puppet
11 29 (28.43%) Finance
12 27 (26.47%) Python
13 26 (25.49%) Firewall
13 26 (25.49%) Terraform
14 25 (24.51%) Ubuntu
15 23 (22.55%) Microsoft
15 23 (22.55%) Jenkins
16 22 (21.57%) Docker
17 21 (20.59%) Cisco
17 21 (20.59%) VMware
17 21 (20.59%) VMware Infrastructure
17 21 (20.59%) Git (software)
18 20 (19.61%) Unix
18 20 (19.61%) Perl
19 17 (16.67%) Kubernetes
19 17 (16.67%) LAN
20 16 (15.69%) Elastic Stack

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 15 (14.71%) Apache
2 12 (11.76%) Tomcat
3 7 (6.86%) Elasticsearch
3 7 (6.86%) IIS
4 5 (4.90%) Confluence
5 4 (3.92%) nginx
6 3 (2.94%) Apache Solr
6 3 (2.94%) WebSphere
6 3 (2.94%) WebSphere Application Server
7 2 (1.96%) CMS
7 2 (1.96%) OpenStack
8 1 (0.98%) Apache Spark
Applications
1 1 (0.98%) HipChat
1 1 (0.98%) Spreadsheet
Business Applications
1 3 (2.94%) Magento
1 3 (2.94%) MetaTrader
1 3 (2.94%) SAP Hybris
2 1 (0.98%) Remedy ITSM
Cloud Services
1 49 (48.04%) Amazon AWS
2 36 (35.29%) Microsoft Azure
3 12 (11.76%) SaaS
4 9 (8.82%) Amazon EC2
5 6 (5.88%) Cloud Computing
5 6 (5.88%) Google Cloud Platform
6 5 (4.90%) Amazon S3
7 4 (3.92%) AWS CloudFormation
7 4 (3.92%) NuGet
8 3 (2.94%) Cloudflare
8 3 (2.94%) Route 53
9 2 (1.96%) Azure Active Directory
9 2 (1.96%) GitHub
9 2 (1.96%) IBM Cloud
9 2 (1.96%) Office 365
9 2 (1.96%) SoftLayer
9 2 (1.96%) Virtual Private Cloud
10 1 (0.98%) AWS Lambda
10 1 (0.98%) Serverless
10 1 (0.98%) Slack
Communications & Networking
1 26 (25.49%) Firewall
2 17 (16.67%) LAN
3 14 (13.73%) WAN
4 12 (11.76%) TCP/IP
5 11 (10.78%) Network Security
6 10 (9.80%) Cisco ASA
7 8 (7.84%) DNS
7 8 (7.84%) Kerberos
8 7 (6.86%) Internet
8 7 (6.86%) Intrusion Detection
8 7 (6.86%) VPN
9 5 (4.90%) NetScaler
9 5 (4.90%) SSH
9 5 (4.90%) SSL
10 4 (3.92%) VLAN
11 3 (2.94%) BGP
12 2 (1.96%) DSL
12 2 (1.96%) IPsec
12 2 (1.96%) SAN
12 2 (1.96%) Wireshark
Database & Business Intelligence
1 14 (13.73%) MySQL
2 13 (12.75%) SQL Server
3 7 (6.86%) Apache Cassandra
4 6 (5.88%) NoSQL
5 5 (4.90%) Redis
6 4 (3.92%) Apache Hive
6 4 (3.92%) HBase
6 4 (3.92%) MariaDB
6 4 (3.92%) Scylla
7 3 (2.94%) Amazon RDS
7 3 (2.94%) MongoDB
7 3 (2.94%) Relational Database
7 3 (2.94%) SQL Server 2012
8 1 (0.98%) Big Data
8 1 (0.98%) Data Warehouse
8 1 (0.98%) Hadoop
8 1 (0.98%) InfluxDB
8 1 (0.98%) Oracle Database
8 1 (0.98%) RDBMS
Development Applications
1 23 (22.55%) Jenkins
2 21 (20.59%) Git (software)
3 11 (10.78%) JIRA
4 9 (8.82%) Atlassian Bamboo
4 9 (8.82%) Bitbucket
5 8 (7.84%) Subversion
6 6 (5.88%) Maven
6 6 (5.88%) Octopus Deploy
6 6 (5.88%) TeamCity
7 5 (4.90%) Visual Studio Team System
8 4 (3.92%) Ant
8 4 (3.92%) GitLab
8 4 (3.92%) Visual Studio
9 3 (2.94%) CA Release Automation
9 3 (2.94%) Eclipse
9 3 (2.94%) Fiddler
9 3 (2.94%) IntelliJ
9 3 (2.94%) ReSharper
9 3 (2.94%) Team Foundation Server
10 1 (0.98%) Vagrant
General
1 29 (28.43%) Finance
2 12 (11.76%) Banking
3 8 (7.84%) Financial Institution
3 8 (7.84%) Telecoms
4 7 (6.86%) Legal
5 5 (4.90%) Marketing
6 4 (3.92%) Law
7 3 (2.94%) Advertising
8 2 (1.96%) Games
8 2 (1.96%) Online Betting
8 2 (1.96%) Spanish Language
9 1 (0.98%) Back Office
9 1 (0.98%) Front Office
Job Titles
1 39 (38.24%) DevOps Engineer
2 36 (35.29%) Administrator
3 35 (34.31%) Systems Administrator
4 24 (23.53%) Linux Engineer
4 24 (23.53%) Systems Engineer
5 18 (17.65%) Linux Systems Engineer
6 17 (16.67%) Linux Administrator
6 17 (16.67%) Linux Systems Administrator
7 15 (14.71%) DevOps Systems Engineer
7 15 (14.71%) Linux/Unix DevOps
8 14 (13.73%) DevOps Administrator
9 13 (12.75%) Automation Engineer
9 13 (12.75%) Cloud Engineer
9 13 (12.75%) Linux DevOps Engineer
10 11 (10.78%) Linux DevOps Administrator
11 10 (9.80%) Cloud Administrator
11 10 (9.80%) Cloud Automation Engineer
11 10 (9.80%) Support Engineer
12 9 (8.82%) Network Systems Engineer
13 8 (7.84%) Linux Scripter
Libraries, Frameworks & Software Standards
1 16 (15.69%) Elastic Stack
2 13 (12.75%) Web Services
3 8 (7.84%) LDAP
4 6 (5.88%) .NET
4 6 (5.88%) LAMP
4 6 (5.88%) Node.js
5 5 (4.90%) Kafka
6 4 (3.92%) CSS
6 4 (3.92%) HTML
6 4 (3.92%) RESTful
7 3 (2.94%) ActiveMQ
7 3 (2.94%) ASP.NET
7 3 (2.94%) ASP.NET MVC
7 3 (2.94%) ASP.NET Web API
7 3 (2.94%) JSON
7 3 (2.94%) REST
7 3 (2.94%) SOAP
7 3 (2.94%) TIBCO EMS
7 3 (2.94%) XML
8 2 (1.96%) Software Packaging
Miscellaneous
1 10 (9.80%) Fintech
2 9 (8.82%) Management Information System
3 7 (6.86%) Cyber Kill Chain
4 6 (5.88%) Public Cloud
5 4 (3.92%) Greenfield Project
6 3 (2.94%) Data Centre
6 3 (2.94%) Enterprise Software
6 3 (2.94%) Self-Motivation
7 2 (1.96%) Analytical Skills
7 2 (1.96%) Clustering
7 2 (1.96%) Computer Science
7 2 (1.96%) Hedge funds
7 2 (1.96%) HP StoreVirtual
8 1 (0.98%) Blog
8 1 (0.98%) Enterprise Cloud
8 1 (0.98%) Internet of Things
8 1 (0.98%) Linux Command Line
8 1 (0.98%) Private Cloud
8 1 (0.98%) Wiki
Operating Systems
1 102 (100.00%) Linux
2 42 (41.18%) Windows
3 32 (31.37%) Red Hat Enterprise Linux
4 25 (24.51%) Ubuntu
5 20 (19.61%) Unix
6 15 (14.71%) Windows Server
7 13 (12.75%) Windows Server 2012
8 11 (10.78%) Windows Server 2008
9 7 (6.86%) AIX
9 7 (6.86%) HPUX
9 7 (6.86%) Windows Server 2003
9 7 (6.86%) Windows XP
10 5 (4.90%) Debian
11 2 (1.96%) Fedora
11 2 (1.96%) Mac OS
11 2 (1.96%) Solaris
11 2 (1.96%) SUSE
12 1 (0.98%) Amazon Linux
12 1 (0.98%) Windows 10
12 1 (0.98%) Windows 7
Processes & Methodologies
1 53 (51.96%) DevOps
2 37 (36.27%) Configuration Management
3 30 (29.41%) Open Source
4 13 (12.75%) Agile Software Development
5 11 (10.78%) Continuous Integration
6 9 (8.82%) Change Management
6 9 (8.82%) Information Security
7 8 (7.84%) Deployment Automation
8 7 (6.86%) Change Control
8 7 (6.86%) Cyber Intelligence
8 7 (6.86%) Data Protection
8 7 (6.86%) Forensic Analysis
8 7 (6.86%) ITIL
8 7 (6.86%) Malware Analysis
8 7 (6.86%) Process Management
8 7 (6.86%) SIEM
8 7 (6.86%) Threat Intelligence
9 6 (5.88%) Algorithmic Trading
9 6 (5.88%) Analytics
9 6 (5.88%) Service Management
Programming Languages
1 29 (28.43%) Bash Shell
2 27 (26.47%) Python
3 20 (19.61%) Perl
4 13 (12.75%) SQL
5 12 (11.76%) Java
5 12 (11.76%) Ruby
6 8 (7.84%) PowerShell
7 7 (6.86%) JavaScript
7 7 (6.86%) PHP
8 4 (3.92%) Shell Script
9 3 (2.94%) C#
10 2 (1.96%) C
11 1 (0.98%) C++
11 1 (0.98%) Fortran
11 1 (0.98%) Groovy
11 1 (0.98%) Haskell
11 1 (0.98%) MATLAB
11 1 (0.98%) OCaml
11 1 (0.98%) R
11 1 (0.98%) VBA
Qualifications
1 10 (9.80%) Degree
2 7 (6.86%) CISM
2 7 (6.86%) CISSP
3 5 (4.90%) AWS Certification
4 2 (1.96%) Computer Science Degree
4 2 (1.96%) Linux+ Certification
4 2 (1.96%) MCP
4 2 (1.96%) RHCSA
Quality Assurance & Compliance
1 7 (6.86%) QA
2 1 (0.98%) GDPR
System Software
1 22 (21.57%) Docker
2 21 (20.59%) VMware Infrastructure
3 9 (8.82%) Active Directory
4 4 (3.92%) HDFS
5 3 (2.94%) Apache ZooKeeper
5 3 (2.94%) VirtualBox
5 3 (2.94%) VMware ESXi
6 2 (1.96%) GlusterFS
6 2 (1.96%) pfSense
6 2 (1.96%) XenServer
7 1 (0.98%) Ceph
7 1 (0.98%) Firmware
7 1 (0.98%) Hyper-V
7 1 (0.98%) KVM
7 1 (0.98%) LXC
7 1 (0.98%) Samba
7 1 (0.98%) Varnish
7 1 (0.98%) Virtual Machines
7 1 (0.98%) VMware NSX
7 1 (0.98%) vSphere
Systems Management
1 49 (48.04%) Ansible
2 33 (32.35%) Opscode Chef
3 29 (28.43%) Puppet
4 26 (25.49%) Terraform
5 17 (16.67%) Kubernetes
6 10 (9.80%) Kibana
7 9 (8.82%) logstash
7 9 (8.82%) Nagios
8 6 (5.88%) Icinga
9 5 (4.90%) Docker Swarm
9 5 (4.90%) HAProxy
9 5 (4.90%) Salt
10 4 (3.92%) Consul
10 4 (3.92%) LiteSpeed
10 4 (3.92%) Oozie
10 4 (3.92%) Packer
10 4 (3.92%) Prometheus
11 3 (2.94%) Perfmon
11 3 (2.94%) vCenter Server
12 2 (1.96%) Grafana
Vendors
1 66 (64.71%) Red Hat
2 23 (22.55%) Microsoft
3 21 (20.59%) Cisco
3 21 (20.59%) VMware
4 8 (7.84%) HP
4 8 (7.84%) Sun
5 7 (6.86%) SaltStack
6 6 (5.88%) Oracle
7 5 (4.90%) Google
7 5 (4.90%) IBM
7 5 (4.90%) New Relic
7 5 (4.90%) SolarWinds
8 4 (3.92%) Atlassian
8 4 (3.92%) Hortonworks
8 4 (3.92%) Symantec
9 3 (2.94%) ATG
9 3 (2.94%) Remedy
9 3 (2.94%) SAP
9 3 (2.94%) ServiceNow
9 3 (2.94%) TIBCO