Period
to 23 July 2017

The following table provides summary statistics for permanent job vacancies advertised in Croydon 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 July 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
London > Croydon
6 months to
23 Jul 2017
Same period 2016 Same period 2015
Rank 43 55 58
Rank change year-on-year +12 +3 +9
Permanent jobs citing CentOS 10 5 1
As % of all permanent IT jobs advertised in Croydon 2.92% 1.05% 0.28%
As % of the Operating Systems category 10.99% 3.03% 0.88%
Number of salaries quoted 9 4 1
Croydon median annual salary £16,500 £47,500 £30,000
Median salary % change year-on-year -65.26% +58.33% -14.29%
10th Percentile £15,750 £44,500 £27,500
90th Percentile £42,500 £50,500 £32,500
London median annual salary £62,500 £55,000 £55,000
% change year-on-year +13.64% - +10.00%

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

Operating System Skills
Croydon
Permanent job vacancies with a requirement for operating system skills 91 165 113
As % of all permanent IT job vacancies advertised in Croydon 26.53% 34.59% 32.10%
Number of salaries quoted 77 155 101
Croydon median annual salary £37,000 £40,000 £26,500
Median salary % change year-on-year -7.50% +50.94% -31.61%
10th Percentile £17,000 £20,500 £21,000
90th Percentile £58,750 £62,500 £58,750
London median annual salary £55,000 £55,000 £51,500
% change year-on-year - +6.80% +3.00%

CentOS
Job Vacancy Trend in Croydon

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

Job vacancy trend for CentOS in Croydon

CentOS
Salary Trend in Croydon

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

Salary trend for CentOS in Croydon

CentOS
Salary Histogram in Croydon

The salary distribution of IT jobs citing CentOS in Croydon over the 6 months to 23 July 2017.

Salary histogram for CentOS in Croydon

For the 6 months to 23 July 2017, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Croydon region with a requirement for CentOS.

1 10 (100.00%) Linux
2 9 (90.00%) TCP/IP
2 9 (90.00%) WAN
3 8 (80.00%) LAN
4 6 (60.00%) VPN
5 5 (50.00%) Cisco
5 5 (50.00%) Microsoft
5 5 (50.00%) Microsoft Office
5 5 (50.00%) Windows
5 5 (50.00%) Active Directory
5 5 (50.00%) Citrix
5 5 (50.00%) Firewall
5 5 (50.00%) Security Management
5 5 (50.00%) VMware
5 5 (50.00%) XenApp
5 5 (50.00%) Office 365
5 5 (50.00%) Windows Server
6 4 (40.00%) Docker
6 4 (40.00%) CoreOS
6 4 (40.00%) Bash Shell
6 4 (40.00%) DNS
7 3 (30.00%) SSL
7 3 (30.00%) VoIP
7 3 (30.00%) HTTP
7 3 (30.00%) OpenSIPS
7 3 (30.00%) FreeSWITCH
7 3 (30.00%) SSH
7 3 (30.00%) Xen
7 3 (30.00%) Degree
8 2 (20.00%) STUN

CentOS
Co-occurring IT Skills in Croydon 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 1 (10.00%) JBoss
1 1 (10.00%) Tomcat
Applications
1 5 (50.00%) Microsoft Office
Cloud Services
1 5 (50.00%) Office 365
Communications & Networking
1 9 (90.00%) TCP/IP
1 9 (90.00%) WAN
2 8 (80.00%) LAN
3 6 (60.00%) VPN
4 5 (50.00%) Firewall
5 4 (40.00%) DNS
6 3 (30.00%) HTTP
6 3 (30.00%) SSH
6 3 (30.00%) SSL
6 3 (30.00%) VoIP
7 2 (20.00%) RTCP
7 2 (20.00%) RTP
7 2 (20.00%) STUN
8 1 (10.00%) IPsec
8 1 (10.00%) Network Security
8 1 (10.00%) OpenLDAP
8 1 (10.00%) Quagga
8 1 (10.00%) VLAN
8 1 (10.00%) VPLS
8 1 (10.00%) VRRP
Database & Business Intelligence
1 1 (10.00%) Hadoop
1 1 (10.00%) HBase
1 1 (10.00%) PostgreSQL
Development Applications
1 1 (10.00%) Git (software)
1 1 (10.00%) Jenkins
1 1 (10.00%) Maven
1 1 (10.00%) Sonatype Nexus
Job Titles
1 5 (50.00%) Analyst
1 5 (50.00%) Service Analyst
1 5 (50.00%) Service Desk Analyst
2 3 (30.00%) Network Engineer
2 3 (30.00%) Network Operations Engineer
2 3 (30.00%) Operations Engineer
3 1 (10.00%) DevOps Engineer
3 1 (10.00%) Junior
3 1 (10.00%) Junior DevOps
3 1 (10.00%) Junior DevOps Engineer
Libraries, Frameworks & Software Standards
1 3 (30.00%) FreeSWITCH
2 1 (10.00%) ActiveMQ
2 1 (10.00%) Apache Camel
2 1 (10.00%) LAPP Stack
2 1 (10.00%) OSGi
Miscellaneous
1 2 (20.00%) Social Media
2 1 (10.00%) Data Centre
Operating Systems
1 10 (100.00%) Linux
2 5 (50.00%) Windows
2 5 (50.00%) Windows Server
3 4 (40.00%) CoreOS
4 1 (10.00%) Red Hat Enterprise Linux
Processes & Methodologies
1 5 (50.00%) Security Management
2 2 (20.00%) DevOps
3 1 (10.00%) Agile Software Development
3 1 (10.00%) Configuration Management
3 1 (10.00%) Continuous Integration
3 1 (10.00%) Network Design
3 1 (10.00%) Performance Tuning
Programming Languages
1 4 (40.00%) Bash Shell
2 2 (20.00%) Python
3 1 (10.00%) Java
Qualifications
1 3 (30.00%) Degree
2 1 (10.00%) CCNP
2 1 (10.00%) Cisco Certification
System Software
1 5 (50.00%) Active Directory
1 5 (50.00%) XenApp
2 4 (40.00%) Docker
3 3 (30.00%) OpenSIPS
3 3 (30.00%) Xen
4 1 (10.00%) BIND 9
4 1 (10.00%) iptables
4 1 (10.00%) Kamailio
Systems Management
1 2 (20.00%) Nagios
2 1 (10.00%) Ansible
2 1 (10.00%) Puppet
2 1 (10.00%) ZABBIX
Vendors
1 5 (50.00%) Cisco
1 5 (50.00%) Citrix
1 5 (50.00%) Microsoft
1 5 (50.00%) VMware
2 1 (10.00%) Red Hat
Croydon, Surrey
flatraterecruiting
Salary: £45000.00 per annum
Posted: Yesterday