Period
to 25 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Oxford 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 25 November 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
Oxfordshire > Oxford
6 months to
25 Nov 2017
Same period 2016 Same period 2015
Rank 109 115 114
Rank change year-on-year +6 -1 -3
Permanent jobs citing CentOS 11 4 17
As % of all permanent IT jobs advertised in Oxford 0.70% 0.27% 1.02%
As % of the Operating Systems category 3.41% 1.00% 3.64%
Number of salaries quoted 9 4 44
Oxford median annual salary £50,000 £34,250 £42,500
Median salary % change year-on-year +45.99% -19.41% -15.00%
10th Percentile £33,500 £32,250 £37,500
90th Percentile £50,750 £39,250 £53,750
Oxfordshire median annual salary £50,000 £35,000 £42,500
% change year-on-year +42.86% -17.65% -15.00%

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 Oxford with a requirement for operating system skills.

All Operating Systems
Oxford
Permanent vacancies with a requirement for operating system skills 323 401 467
As % of all permanent IT jobs advertised in Oxford 20.55% 27.39% 27.91%
Number of salaries quoted 268 360 363
Oxford median annual salary £47,500 £42,500 £42,233
Median salary % change year-on-year +11.76% +0.63% +18.96%
10th Percentile £26,100 £24,425 £25,000
90th Percentile £63,750 £61,250 £62,000
Oxfordshire median annual salary £45,000 £43,500 £40,000
% change year-on-year +3.45% +8.75% +15.11%

CentOS
Job Vacancy Trend in Oxford

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

Job vacancy trend for CentOS in Oxford

CentOS
Salary Trend in Oxford

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

Salary trend for CentOS in Oxford

CentOS
Salary Histogram in Oxford

The salary distribution of IT jobs citing CentOS in Oxford over the 6 months to 25 November 2017.

Salary histogram for CentOS in Oxford

For the 6 months to 25 November 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 Oxford region with a requirement for CentOS.

1 11 (100.00%) Linux
2 10 (90.91%) Python
3 8 (72.73%) Unix
4 7 (63.64%) Configuration Management
4 7 (63.64%) nginx
5 6 (54.55%) Degree
5 6 (54.55%) PostgreSQL
5 6 (54.55%) LDAP
6 5 (45.45%) Bash Shell
7 4 (36.36%) Apache
7 4 (36.36%) Firewall
7 4 (36.36%) Docker
7 4 (36.36%) Opscode Chef
8 3 (27.27%) LAPP Stack
8 3 (27.27%) Varnish
8 3 (27.27%) Puppet
8 3 (27.27%) Junos
8 3 (27.27%) OpenVPN
8 3 (27.27%) Change Control
8 3 (27.27%) IPsec
8 3 (27.27%) Disaster Recovery
8 3 (27.27%) FreeBSD
8 3 (27.27%) SAML
8 3 (27.27%) Nagios
8 3 (27.27%) OSPF
8 3 (27.27%) BGP
8 3 (27.27%) SSL
8 3 (27.27%) Cisco
8 3 (27.27%) CCNP
8 3 (27.27%) Cisco Certification

CentOS
Co-occurring IT Skills in Oxford 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 7 (63.64%) nginx
2 4 (36.36%) Apache
3 3 (27.27%) lighttpd
4 1 (9.09%) Elasticsearch
Cloud Services
1 3 (27.27%) SaaS
2 2 (18.18%) Amazon AWS
3 1 (9.09%) Microsoft Azure
Communications & Networking
1 6 (54.55%) LDAP
2 4 (36.36%) Firewall
3 3 (27.27%) BGP
3 3 (27.27%) Cisco IOS
3 3 (27.27%) IPsec
3 3 (27.27%) Junos
3 3 (27.27%) Network Security
3 3 (27.27%) OpenVPN
3 3 (27.27%) OSPF
3 3 (27.27%) SSH
3 3 (27.27%) SSL
3 3 (27.27%) VLAN
Database & Business Intelligence
1 6 (54.55%) PostgreSQL
2 1 (9.09%) Big Data
2 1 (9.09%) MariaDB
2 1 (9.09%) MySQL
Development Applications
1 3 (27.27%) Git (software)
2 2 (18.18%) Jenkins
3 1 (9.09%) Vagrant
Job Titles
1 3 (27.27%) Administrator
1 3 (27.27%) Cisco Engineer
1 3 (27.27%) Cisco Network Engineer
1 3 (27.27%) Cisco Security Engineer
1 3 (27.27%) Developer
1 3 (27.27%) Juniper Engineer
1 3 (27.27%) Linux Administrator
1 3 (27.27%) Linux Systems Administrator
1 3 (27.27%) Network Engineer
1 3 (27.27%) Network Security Engineer
1 3 (27.27%) Security Engineer
1 3 (27.27%) Systems Administrator
1 3 (27.27%) Unix Administrator
1 3 (27.27%) Unix Engineer
1 3 (27.27%) Unix Linux Systems Administrator
1 3 (27.27%) Unix Security Engineer
1 3 (27.27%) Unix Systems Administrator
2 1 (9.09%) Cloud Architect
2 1 (9.09%) DevOps Engineer
2 1 (9.09%) Platform Architect
Libraries, Frameworks & Software Standards
1 3 (27.27%) LAPP Stack
1 3 (27.27%) SAML
2 1 (9.09%) CSS
2 1 (9.09%) HTML
Miscellaneous
1 1 (9.09%) Greenfield Project
Operating Systems
1 11 (100.00%) Linux
2 8 (72.73%) Unix
3 3 (27.27%) FreeBSD
4 2 (18.18%) Debian
5 1 (9.09%) Ubuntu
Processes & Methodologies
1 7 (63.64%) Configuration Management
2 3 (27.27%) Change Control
2 3 (27.27%) Disaster Recovery
2 3 (27.27%) OWASP
2 3 (27.27%) Statistics
3 2 (18.18%) Agile Software Development
3 2 (18.18%) DevOps
4 1 (9.09%) Continuous Integration
4 1 (9.09%) Deep Learning
4 1 (9.09%) Mentoring
4 1 (9.09%) Microservices
4 1 (9.09%) OO
4 1 (9.09%) Patch Management
4 1 (9.09%) Scrum
4 1 (9.09%) SDLC
4 1 (9.09%) Security Architecture
4 1 (9.09%) Software Engineering
4 1 (9.09%) TDD
4 1 (9.09%) Test Automation
4 1 (9.09%) Web Development
Programming Languages
1 10 (90.91%) Python
2 5 (45.45%) Bash Shell
3 3 (27.27%) Perl
4 2 (18.18%) C++
5 1 (9.09%) Java
5 1 (9.09%) JavaScript
5 1 (9.09%) PHP
5 1 (9.09%) PowerShell
5 1 (9.09%) SQL
Qualifications
1 6 (54.55%) Degree
2 3 (27.27%) CCNP
2 3 (27.27%) Cisco Certification
System Software
1 4 (36.36%) Docker
2 3 (27.27%) Postfix
2 3 (27.27%) Varnish
Systems Management
1 4 (36.36%) Opscode Chef
2 3 (27.27%) Cacti
2 3 (27.27%) Nagios
2 3 (27.27%) Puppet
3 2 (18.18%) Ansible
3 2 (18.18%) Kubernetes
4 1 (9.09%) Terraform
Vendors
1 3 (27.27%) Cisco
1 3 (27.27%) Juniper
2 2 (18.18%) Red Hat
3 1 (9.09%) Atlassian
3 1 (9.09%) Google