Period
to 22 June 2018

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

CentOS Linux
Hertfordshire > St Albans
6 months to
22 Jun 2018
Same period 2017 Same period 2016
Rank 70 - -
Rank change year-on-year - - +55
Permanent jobs citing CentOS 3 0 0
As % of all permanent IT jobs advertised in St Albans 0.73% - -
As % of the Operating Systems category 5.77% - -
Number of salaries quoted 3 0 0
St Albans median annual salary £70,000 - -
Hertfordshire median annual salary £36,250 £45,000 £50,000
% change year-on-year -19.44% -10.00% -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 St Albans with a requirement for operating system skills.

All Operating Systems
St Albans
Permanent vacancies with a requirement for operating system skills 52 68 52
As % of all permanent IT jobs advertised in St Albans 12.68% 21.59% 24.30%
Number of salaries quoted 50 63 49
St Albans median annual salary £45,000 £50,000 £50,000
Median salary % change year-on-year -10.00% - +11.11%
10th Percentile £32,500 £27,050 £28,500
90th Percentile £67,500 £69,500 £65,000
Hertfordshire median annual salary £45,000 £42,500 £42,000
% change year-on-year +5.88% +1.19% -

CentOS
Job Vacancy Trend in St Albans

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

Job vacancy trend for CentOS in St Albans

CentOS
Salary Trend in St Albans

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

Salary trend for CentOS in St Albans

CentOS
Salary Histogram in St Albans

The salary distribution of IT jobs citing CentOS in St Albans over the 6 months to 22 June 2018.

Salary histogram for CentOS in St Albans

For the 6 months to 22 June 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 St Albans region with a requirement for CentOS.

1 3 (100.00%) Linux
1 3 (100.00%) Red Hat
1 3 (100.00%) DevOps
2 2 (66.67%) Elastic Stack
2 2 (66.67%) Microservices
2 2 (66.67%) Graphite
2 2 (66.67%) Kubernetes
2 2 (66.67%) Rancher
2 2 (66.67%) Consul
2 2 (66.67%) Release Automation
2 2 (66.67%) Jenkins
2 2 (66.67%) HAProxy
2 2 (66.67%) Docker
2 2 (66.67%) Redis
2 2 (66.67%) C#
2 2 (66.67%) SQL
2 2 (66.67%) .NET
2 2 (66.67%) IIS
2 2 (66.67%) Reverse Proxy
2 2 (66.67%) Continuous Integration
2 2 (66.67%) PowerShell
2 2 (66.67%) TeamCity
2 2 (66.67%) Git (software)
2 2 (66.67%) ZABBIX
2 2 (66.67%) Team Foundation Server
2 2 (66.67%) Microsoft Azure
3 1 (33.33%) Amazon AWS
3 1 (33.33%) Puppet
3 1 (33.33%) RabbitMQ
3 1 (33.33%) High Availability

CentOS
Co-occurring IT Skills in St Albans 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 2 (66.67%) IIS
2 1 (33.33%) Apache
2 1 (33.33%) Elasticsearch
Cloud Services
1 2 (66.67%) Microsoft Azure
2 1 (33.33%) Amazon AWS
2 1 (33.33%) npm
2 1 (33.33%) NuGet
Communications & Networking
1 2 (66.67%) Reverse Proxy
2 1 (33.33%) HTTP
Database & Business Intelligence
1 2 (66.67%) Redis
2 1 (33.33%) Big Data
2 1 (33.33%) MySQL
Development Applications
1 2 (66.67%) Git (software)
1 2 (66.67%) Jenkins
1 2 (66.67%) Team Foundation Server
1 2 (66.67%) TeamCity
General
1 1 (33.33%) Finance
Job Titles
1 3 (100.00%) DevOps Engineer
2 1 (33.33%) Architect
2 1 (33.33%) Cloud Architect
2 1 (33.33%) Cloud Engineer
2 1 (33.33%) DevOps Architect
2 1 (33.33%) Senior DevOps
2 1 (33.33%) Senior DevOps Engineer
Libraries, Frameworks & Software Standards
1 2 (66.67%) .NET
1 2 (66.67%) Elastic Stack
2 1 (33.33%) RabbitMQ
2 1 (33.33%) Web Services
Miscellaneous
1 1 (33.33%) Analytical Skills
1 1 (33.33%) Data Centre
Operating Systems
1 3 (100.00%) Linux
2 1 (33.33%) Unix
2 1 (33.33%) Windows
Processes & Methodologies
1 3 (100.00%) DevOps
2 2 (66.67%) Continuous Integration
2 2 (66.67%) Microservices
2 2 (66.67%) Release Automation
3 1 (33.33%) High Availability
3 1 (33.33%) Problem-Solving
Programming Languages
1 2 (66.67%) C#
1 2 (66.67%) PowerShell
1 2 (66.67%) SQL
System Software
1 2 (66.67%) Docker
Systems Management
1 2 (66.67%) Consul
1 2 (66.67%) Graphite
1 2 (66.67%) HAProxy
1 2 (66.67%) Kubernetes
1 2 (66.67%) Rancher
1 2 (66.67%) ZABBIX
2 1 (33.33%) Opscode Chef
2 1 (33.33%) Puppet
Vendors
1 3 (100.00%) Red Hat
2 1 (33.33%) Microsoft