Period
to 22 July 2019

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 22 July 2019 with a comparison to the same period in the previous 2 years.

CentOS Linux
London > Central London
6 months to
22 Jul 2019
Same period 2018 Same period 2017
Rank 341 294 256
Rank change year-on-year -47 -38 +81
Permanent jobs citing CentOS 43 110 126
As % of all permanent IT jobs advertised in Central London 0.33% 0.77% 0.99%
As % of the Operating Systems category 1.37% 3.31% 3.70%
Number of salaries quoted 38 106 123
Central London median annual salary £65,000 £60,000 £60,000
Median salary % change year-on-year +8.33% - +9.09%
10th Percentile £40,000 £39,750 £36,350
90th Percentile £110,000 £85,000 £92,250
London median annual salary £60,000 £60,000 £62,500
% 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 3,138 3,322 3,403
As % of all permanent IT jobs advertised in Central London 23.78% 23.19% 26.80%
Number of salaries quoted 2,754 2,996 3,048
Central London median annual salary £60,000 £57,500 £55,000
Median salary % change year-on-year +4.35% +4.55% +2.33%
10th Percentile £29,000 £30,000 £28,500
90th Percentile £90,000 £87,500 £85,000
London median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +4.55% -

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 22 July 2019.

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 22 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
City of London -10 26 £65,000 - 12
West End of London +13 7 £45,000 -
City of Westminster -10 3 £90,000 +89.47%
CentOS
London

For the 6 months to 22 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 Central London region with a requirement for CentOS.

1 43 (100.00%) Linux
2 29 (67.44%) Python
3 27 (62.79%) Ubuntu
4 25 (58.14%) Red Hat
5 23 (53.49%) Amazon AWS
6 18 (41.86%) Bash Shell
7 16 (37.21%) Apache
8 15 (34.88%) Docker
8 15 (34.88%) DevOps
9 14 (32.56%) Ansible
10 13 (30.23%) PHP
11 12 (27.91%) Puppet
12 11 (25.58%) Redis
12 11 (25.58%) Amazon RDS
12 11 (25.58%) Opscode Chef
12 11 (25.58%) MySQL
12 11 (25.58%) Amazon EC2
13 10 (23.26%) VMware
13 10 (23.26%) Agile Software Development
13 10 (23.26%) Finance
13 10 (23.26%) LAMP
13 10 (23.26%) Amazon SQS
13 10 (23.26%) Amazon CloudWatch
14 9 (20.93%) Kubernetes
14 9 (20.93%) Red Hat Enterprise Linux
15 8 (18.60%) VMware Infrastructure
15 8 (18.60%) Artificial Intelligence
15 8 (18.60%) Configuration Management
15 8 (18.60%) Windows
15 8 (18.60%) AWS Lambda

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 16 (37.21%) Apache
2 8 (18.60%) Elasticsearch
3 7 (16.28%) nginx
4 2 (4.65%) Tomcat
5 1 (2.33%) CMS
5 1 (2.33%) Confluence
5 1 (2.33%) IIS
Cloud Services
1 23 (53.49%) Amazon AWS
2 11 (25.58%) Amazon EC2
3 10 (23.26%) Amazon CloudWatch
3 10 (23.26%) Amazon SQS
4 8 (18.60%) Amazon ElastiCache
4 8 (18.60%) AWS Lambda
4 8 (18.60%) Route 53
5 6 (13.95%) Microsoft Azure
5 6 (13.95%) SaaS
6 4 (9.30%) Office 365
7 3 (6.98%) AWS CloudFormation
8 1 (2.33%) Amazon ECS
8 1 (2.33%) Amazon S3
8 1 (2.33%) AWS Fargate
8 1 (2.33%) Google Cloud Platform
8 1 (2.33%) Rackspace Cloud
8 1 (2.33%) Virtual Private Cloud
Communications & Networking
1 6 (13.95%) Firewall
2 5 (11.63%) SAN
3 4 (9.30%) DNS
4 3 (6.98%) HTTP
4 3 (6.98%) TCP/IP
5 2 (4.65%) Cisco ASA
5 2 (4.65%) SNMP
5 2 (4.65%) SSH
5 2 (4.65%) VPN
6 1 (2.33%) Asterisk PBX
6 1 (2.33%) DHCP
6 1 (2.33%) iSCSI
6 1 (2.33%) LAN
6 1 (2.33%) SMTP
6 1 (2.33%) VLAN
6 1 (2.33%) VoIP
6 1 (2.33%) Wireless
Database & Business Intelligence
1 11 (25.58%) Amazon RDS
1 11 (25.58%) MySQL
1 11 (25.58%) Redis
2 8 (18.60%) Amazon Aurora
2 8 (18.60%) Big Data
3 7 (16.28%) NoSQL
4 3 (6.98%) PostgreSQL
5 1 (2.33%) Amazon DynamoDB
5 1 (2.33%) MongoDB
5 1 (2.33%) Relational Database
5 1 (2.33%) SQL Server
Development Applications
1 8 (18.60%) Jenkins
2 4 (9.30%) Atlassian Bamboo
2 4 (9.30%) Maven
3 3 (6.98%) Git (software)
4 2 (4.65%) GitLab
4 2 (4.65%) JIRA
5 1 (2.33%) Bitbucket
5 1 (2.33%) JMeter
5 1 (2.33%) Selenium
5 1 (2.33%) Vagrant
General
1 10 (23.26%) Finance
2 4 (9.30%) Law
3 2 (4.65%) Retail
4 1 (2.33%) Publishing
4 1 (2.33%) Telecoms
Job Titles
1 13 (30.23%) DevOps Engineer
2 11 (25.58%) Administrator
3 10 (23.26%) Linux Administrator
4 9 (20.93%) Developer
5 8 (18.60%) Linux Engineer
5 8 (18.60%) Linux Systems Administrator
5 8 (18.60%) Python Developer
5 8 (18.60%) Python Engineer
5 8 (18.60%) Systems Administrator
6 7 (16.28%) AWS DevOps
6 7 (16.28%) AWS DevOps Engineer
6 7 (16.28%) AWS Engineer
7 4 (9.30%) Linux Support
7 4 (9.30%) Linux Support Engineer
7 4 (9.30%) Support Engineer
8 3 (6.98%) DevOps Systems Engineer
8 3 (6.98%) Kubernetes Engineer
8 3 (6.98%) Senior DevOps
8 3 (6.98%) Windows Administrator
8 3 (6.98%) Windows Systems Administrator
Libraries, Frameworks & Software Standards
1 10 (23.26%) LAMP
2 7 (16.28%) Node.js
3 4 (9.30%) LEMP Stack
3 4 (9.30%) Natural Language Processing
4 3 (6.98%) libvirt
5 1 (2.33%) 802.1X
5 1 (2.33%) CSS
5 1 (2.33%) Elastic Stack
5 1 (2.33%) HTML
5 1 (2.33%) LDAP
5 1 (2.33%) REST
5 1 (2.33%) SAML
5 1 (2.33%) Web Services
5 1 (2.33%) YAML
Miscellaneous
1 3 (6.98%) Linux Command Line
2 2 (4.65%) Data Centre
3 1 (2.33%) Cloud Native
3 1 (2.33%) Distributed Denial-of-Service
3 1 (2.33%) Hedge funds
Operating Systems
1 43 (100.00%) Linux
2 27 (62.79%) Ubuntu
3 9 (20.93%) Red Hat Enterprise Linux
4 8 (18.60%) Windows
5 6 (13.95%) Windows Server
6 5 (11.63%) Debian
7 3 (6.98%) Mac OS
7 3 (6.98%) Windows 10
Processes & Methodologies
1 15 (34.88%) DevOps
2 10 (23.26%) Agile Software Development
3 8 (18.60%) Artificial Intelligence
3 8 (18.60%) Configuration Management
3 8 (18.60%) Fintech
3 8 (18.60%) Machine Learning
4 7 (16.28%) Continuous Integration
5 6 (13.95%) Microservices
6 5 (11.63%) High Availability
6 5 (11.63%) ITIL
7 4 (9.30%) Cybersecurity
7 4 (9.30%) Infrastructure Engineering
8 3 (6.98%) Disaster Recovery
8 3 (6.98%) Incident Management
8 3 (6.98%) Infrastructure as Code
8 3 (6.98%) Proactive Maintenance
8 3 (6.98%) Release Management
8 3 (6.98%) Task Automation
9 2 (4.65%) Change Management
9 2 (4.65%) Scrum
Programming Languages
1 29 (67.44%) Python
2 18 (41.86%) Bash Shell
3 13 (30.23%) PHP
4 7 (16.28%) Perl
5 5 (11.63%) Ruby
6 4 (9.30%) Shell Script
7 2 (4.65%) SQL
8 1 (2.33%) C#
8 1 (2.33%) Go
8 1 (2.33%) JavaScript
8 1 (2.33%) PowerShell
Qualifications
1 2 (4.65%) Degree
1 2 (4.65%) ITIL Certification
2 1 (2.33%) Computer Science Degree
2 1 (2.33%) Numerate Degree
2 1 (2.33%) Postgraduate
Quality Assurance & Compliance
1 2 (4.65%) ISO/IEC 27001
System Software
1 15 (34.88%) Docker
2 8 (18.60%) VMware Infrastructure
3 4 (9.30%) KVM
4 3 (6.98%) oVirt
4 3 (6.98%) QEMU
5 2 (4.65%) Firmware
5 2 (4.65%) Hyper-V
5 2 (4.65%) iptables
5 2 (4.65%) VMware NSX
5 2 (4.65%) vSphere
6 1 (2.33%) Active Directory
6 1 (2.33%) NFS
6 1 (2.33%) Samba
6 1 (2.33%) Virtual Servers
Systems Management
1 14 (32.56%) Ansible
2 12 (27.91%) Puppet
3 11 (25.58%) Opscode Chef
4 9 (20.93%) Kubernetes
5 6 (13.95%) Terraform
6 3 (6.98%) Nagios
6 3 (6.98%) Packer
6 3 (6.98%) ZABBIX
7 2 (4.65%) EMC NetWorker
7 2 (4.65%) vCenter Server
8 1 (2.33%) Grafana
8 1 (2.33%) Jamf Pro
8 1 (2.33%) Salt
Vendors
1 25 (58.14%) Red Hat
2 10 (23.26%) VMware
3 5 (11.63%) Microsoft
4 3 (6.98%) Apple
4 3 (6.98%) Cisco
5 2 (4.65%) Rackspace
5 2 (4.65%) SaltStack
5 2 (4.65%) SolarWinds
6 1 (2.33%) Asigra
6 1 (2.33%) Atlassian
6 1 (2.33%) CommVault
6 1 (2.33%) Dell
6 1 (2.33%) HP
6 1 (2.33%) Juniper
6 1 (2.33%) SonicWALL
6 1 (2.33%) Splunk
6 1 (2.33%) Veeam
6 1 (2.33%) Zoho