Period
to 12 December 2018

The following table provides summary statistics for contract job vacancies advertised in Croydon with a requirement for CentOS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CentOS over the 6 months to 12 December 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

CentOS Linux
South London > Croydon
6 months to
12 Dec 2018
Same period 2017 Same period 2016
Rank 70 69 24
Rank change year-on-year -1 -45 +7
Contract jobs citing CentOS 46 29 55
As % of all contract IT jobs advertised in Croydon 3.88% 3.01% 10.20%
As % of the Operating Systems category 15.18% 12.61% 37.67%
Number of daily rates quoted 34 19 15
Croydon median daily rate £450 £400 £475
Median daily rate % change year-on-year +12.50% -15.79% +5.56%
10th Percentile £413 £363 £425
90th Percentile £576 £653 £524
South London median daily rate £450 £491 £475
% change year-on-year -8.40% +3.42% +5.56%
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate - - -

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

All Operating Systems
Croydon
Contract vacancies with a requirement for operating system skills 303 230 146
As % of all contract IT jobs advertised in Croydon 25.57% 23.86% 27.09%
Number of daily rates quoted 242 145 56
Croydon median daily rate £525 £488 £425
Median daily rate % change year-on-year +7.69% +14.71% -5.56%
10th Percentile £413 £225 £313
90th Percentile £600 £636 £524
South London median daily rate £525 £475 £425
% change year-on-year +10.53% +11.76% +21.43%
Number of hourly rates quoted 1 1 1
Croydon median hourly rate £35.00 £13.00 £15.00
Median hourly rate % change year-on-year +169.23% -13.33% +15.38%
South London median hourly rate £43.75 £47.83 £47.83
% change year-on-year -8.53% - +83.96%

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
Contractor Daily Rate Trend in Croydon

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing CentOS in Croydon.

Contractor daily rate trend for CentOS in Croydon

CentOS
Contractor Daily Rate Histogram in Croydon

The daily rate distribution of IT jobs citing CentOS in Croydon over the 6 months to 12 December 2018.

Contractor daily rate histogram for CentOS in Croydon

For the 6 months to 12 December 2018, IT contractor 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 contract job ads across the Croydon region with a requirement for CentOS.

1 46 (100.00%) Linux
2 33 (71.74%) Red Hat Enterprise Linux
3 30 (65.22%) Amazon AWS
3 30 (65.22%) Terraform
4 28 (60.87%) DevOps
5 23 (50.00%) Security Cleared
6 21 (45.65%) Docker
7 20 (43.48%) Kubernetes
8 19 (41.30%) SC Cleared
9 16 (34.78%) Unix
10 15 (32.61%) Red Hat
11 14 (30.43%) Jenkins
12 13 (28.26%) Puppet
13 12 (26.09%) Bash Shell
13 12 (26.09%) User Acceptance Testing
13 12 (26.09%) Data Security
13 12 (26.09%) Security Management
13 12 (26.09%) PostgreSQL
14 11 (23.91%) Continuous Integration
14 11 (23.91%) Python
14 11 (23.91%) Microsoft Azure
14 11 (23.91%) Deployment Automation
15 10 (21.74%) Amazon EC2
15 10 (21.74%) Amazon S3
15 10 (21.74%) Amazon RDS
15 10 (21.74%) Virtual Private Cloud
15 10 (21.74%) Ansible
15 10 (21.74%) Java
16 9 (19.57%) Windows
17 8 (17.39%) SQL

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 5 (10.87%) JBoss
2 3 (6.52%) nginx
3 2 (4.35%) Tomcat
4 1 (2.17%) OpenStack
Cloud Services
1 30 (65.22%) Amazon AWS
2 11 (23.91%) Microsoft Azure
3 10 (21.74%) Amazon EC2
3 10 (21.74%) Amazon S3
3 10 (21.74%) Virtual Private Cloud
4 6 (13.04%) G Suite
Communications & Networking
1 8 (17.39%) Firewall
2 2 (4.35%) DNS
2 2 (4.35%) FTP
2 2 (4.35%) VPN
3 1 (2.17%) DHCP
3 1 (2.17%) SAN
Database & Business Intelligence
1 12 (26.09%) PostgreSQL
2 10 (21.74%) Amazon RDS
3 3 (6.52%) SQL Server
4 1 (2.17%) SQL Server 2016
Development Applications
1 14 (30.43%) Jenkins
2 7 (15.22%) Git (software)
2 7 (15.22%) Maven
3 5 (10.87%) SonarQube
3 5 (10.87%) Vagrant
4 3 (6.52%) Artifactory
4 3 (6.52%) Sonatype Nexus
5 1 (2.17%) JIRA
5 1 (2.17%) Visual Studio Team System
Job Titles
1 21 (45.65%) DevOps Engineer
2 15 (32.61%) Administrator
3 14 (30.43%) Systems Administrator
4 12 (26.09%) AWS Engineer
5 10 (21.74%) AWS DevOps
5 10 (21.74%) AWS DevOps Engineer
5 10 (21.74%) Linux Administrator
6 9 (19.57%) Linux Engineer
6 9 (19.57%) Linux Systems Administrator
7 6 (13.04%) AWS Administrator
8 5 (10.87%) Azure DevOps
8 5 (10.87%) Java Engineer
8 5 (10.87%) Linux DevOps Engineer
8 5 (10.87%) Linux/Unix DevOps
8 5 (10.87%) Unix Administrator
8 5 (10.87%) Unix Systems Administrator
9 2 (4.35%) Azure DevOps Engineer
9 2 (4.35%) Azure Engineer
9 2 (4.35%) Systems Engineer
10 1 (2.17%) Network Systems Engineer
Libraries, Frameworks & Software Standards
1 2 (4.35%) Web Services
2 1 (2.17%) LDAP
Miscellaneous
1 8 (17.39%) Public Cloud
2 7 (15.22%) Management Information System
3 2 (4.35%) Freedom of Information
3 2 (4.35%) Freedom of Information Act
4 1 (2.17%) Cloud Native
4 1 (2.17%) Clustering
4 1 (2.17%) Private Cloud
Operating Systems
1 46 (100.00%) Linux
2 33 (71.74%) Red Hat Enterprise Linux
3 16 (34.78%) Unix
4 9 (19.57%) Windows
5 4 (8.70%) Ubuntu
6 2 (4.35%) Solaris
6 2 (4.35%) Windows Server
7 1 (2.17%) Windows 10
Processes & Methodologies
1 28 (60.87%) DevOps
2 12 (26.09%) Data Security
2 12 (26.09%) Security Management
2 12 (26.09%) User Acceptance Testing
3 11 (23.91%) Continuous Integration
3 11 (23.91%) Deployment Automation
4 5 (10.87%) Microservices
4 5 (10.87%) Problem-Solving
4 5 (10.87%) Release Management
5 3 (6.52%) Immutable Infrastructure
5 3 (6.52%) Load Balancing
6 2 (4.35%) Build Automation
6 2 (4.35%) Customer Requirements
6 2 (4.35%) Data Protection
6 2 (4.35%) Dependency Injection
6 2 (4.35%) Integration Testing
6 2 (4.35%) Project Management
6 2 (4.35%) Root Cause Analysis
6 2 (4.35%) System Integration Testing
6 2 (4.35%) Virtual Environments
Programming Languages
1 12 (26.09%) Bash Shell
2 11 (23.91%) Python
3 10 (21.74%) Java
4 8 (17.39%) SQL
5 6 (13.04%) Groovy
6 5 (10.87%) Perl
7 3 (6.52%) PowerShell
Qualifications
1 23 (50.00%) Security Cleared
2 19 (41.30%) SC Cleared
3 2 (4.35%) DV Cleared
3 2 (4.35%) VCAP
3 2 (4.35%) VCDX
4 1 (2.17%) Degree
4 1 (2.17%) MCSA
4 1 (2.17%) Microsoft Certification
Quality Assurance & Compliance
1 1 (2.17%) QA
System Software
1 21 (45.65%) Docker
2 4 (8.70%) Active Directory
3 2 (4.35%) VMware ESXi
3 2 (4.35%) VMware Infrastructure
4 1 (2.17%) iptables
4 1 (2.17%) KVM
Systems Management
1 30 (65.22%) Terraform
2 20 (43.48%) Kubernetes
3 13 (28.26%) Puppet
4 10 (21.74%) Ansible
5 3 (6.52%) Nagios
5 3 (6.52%) Prometheus
6 2 (4.35%) Consul
6 2 (4.35%) logstash
7 1 (2.17%) Packer
7 1 (2.17%) vCenter Server
7 1 (2.17%) yum
Vendors
1 15 (32.61%) Red Hat
2 6 (13.04%) Oracle
3 3 (6.52%) Axway
3 3 (6.52%) MuleSoft
3 3 (6.52%) VMware
4 2 (4.35%) Microsoft
4 2 (4.35%) Splunk
5 1 (2.17%) Cisco
5 1 (2.17%) NetApp