Period
to 22 September 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 22 September 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
22 Sep 2018
Same period 2017 Same period 2016
Rank 62 42 31
Rank change year-on-year -20 -11 -2
Contract jobs citing CentOS 55 45 40
As % of all contract IT jobs advertised in Croydon 4.63% 7.71% 7.71%
As % of the Operating Systems category 19.93% 29.22% 31.75%
Number of daily rates quoted 32 24 9
Croydon median daily rate £468 £400 £475
Median daily rate % change year-on-year +16.88% -15.79% +5.56%
10th Percentile £388 £363 £425
90th Percentile £548 £510 £505
South London median daily rate £475 £450 £475
% change year-on-year +5.56% -5.26% +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 276 154 126
As % of all contract IT jobs advertised in Croydon 23.23% 26.37% 24.28%
Number of daily rates quoted 205 90 63
Croydon median daily rate £525 £450 £410
Median daily rate % change year-on-year +16.67% +9.76% -3.53%
10th Percentile £316 £200 £283
90th Percentile £575 £575 £495
South London median daily rate £520 £463 £410
% change year-on-year +12.43% +12.80% +17.14%
Number of hourly rates quoted 3 1 2
Croydon median hourly rate £17.50 £13.00 £14.50
Median hourly rate % change year-on-year +34.62% -10.34% -1.69%
South London median hourly rate £43.50 £47.83 £17.00
% change year-on-year -9.05% +181.35% -64.46%

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 22 September 2018.

Contractor daily rate histogram for CentOS in Croydon

For the 6 months to 22 September 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 55 (100.00%) Linux
2 34 (61.82%) Red Hat Enterprise Linux
3 29 (52.73%) DevOps
4 27 (49.09%) Security Cleared
5 22 (40.00%) Terraform
6 21 (38.18%) Continuous Integration
7 20 (36.36%) Jenkins
7 20 (36.36%) Puppet
8 18 (32.73%) Git (software)
8 18 (32.73%) Amazon AWS
8 18 (32.73%) Windows
9 17 (30.91%) SQL
9 17 (30.91%) Kubernetes
9 17 (30.91%) Deployment Automation
10 16 (29.09%) Splunk
11 15 (27.27%) Bash Shell
11 15 (27.27%) Red Hat
12 14 (25.45%) VMware
12 14 (25.45%) Docker
12 14 (25.45%) Windows Server
13 13 (23.64%) SC Cleared
13 13 (23.64%) Unix
13 13 (23.64%) Python
14 12 (21.82%) SQL Server
14 12 (21.82%) Java
14 12 (21.82%) Cisco
14 12 (21.82%) NetApp
14 12 (21.82%) DV Cleared
14 12 (21.82%) Maven
14 12 (21.82%) Firewall

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 11 (20.00%) JBoss
2 3 (5.45%) OpenStack
3 2 (3.64%) Tomcat
4 1 (1.82%) Oracle SOA Suite
Cloud Services
1 18 (32.73%) Amazon AWS
2 7 (12.73%) Amazon EC2
2 7 (12.73%) Virtual Private Cloud
3 6 (10.91%) Amazon S3
4 3 (5.45%) GitHub
4 3 (5.45%) Microsoft Azure
5 1 (1.82%) Amazon ELB
Communications & Networking
1 12 (21.82%) Firewall
2 3 (5.45%) Intrusion Detection
3 2 (3.64%) DHCP
3 2 (3.64%) DNS
4 1 (1.82%) OpenLDAP
4 1 (1.82%) VPN
Database & Business Intelligence
1 12 (21.82%) SQL Server
1 12 (21.82%) SQL Server 2016
2 10 (18.18%) PostgreSQL
3 7 (12.73%) Amazon RDS
4 2 (3.64%) Big Data
5 1 (1.82%) HBase
Development Applications
1 20 (36.36%) Jenkins
2 18 (32.73%) Git (software)
3 12 (21.82%) Maven
4 10 (18.18%) Vagrant
5 5 (9.09%) SonarQube
6 4 (7.27%) JIRA
7 3 (5.45%) Artifactory
7 3 (5.45%) GitLab
8 1 (1.82%) Sonatype Nexus
General
1 2 (3.64%) Finance
2 1 (1.82%) Retail
Job Titles
1 25 (45.45%) DevOps Engineer
2 14 (25.45%) Linux Engineer
3 13 (23.64%) Administrator
3 13 (23.64%) Systems Administrator
4 12 (21.82%) AWS Administrator
4 12 (21.82%) AWS DevOps
5 11 (20.00%) AWS DevOps Engineer
5 11 (20.00%) AWS Engineer
5 11 (20.00%) Linux/Unix DevOps
6 10 (18.18%) Java Engineer
6 10 (18.18%) Linux DevOps Engineer
6 10 (18.18%) Network Engineer
6 10 (18.18%) Unix Administrator
6 10 (18.18%) Unix Systems Administrator
7 6 (10.91%) Infrastructure Engineer
7 6 (10.91%) Network Infrastructure Engineer
8 5 (9.09%) DV Cleared Network Engineer
9 4 (7.27%) Linux Systems Administrator
9 4 (7.27%) Network Support
9 4 (7.27%) VMware Engineer
Libraries, Frameworks & Software Standards
1 3 (5.45%) Kafka
2 1 (1.82%) ActiveMQ
2 1 (1.82%) OSGi
2 1 (1.82%) Web Services
Miscellaneous
1 6 (10.91%) Public Cloud
2 5 (9.09%) Management Information System
3 4 (7.27%) Freedom of Information
3 4 (7.27%) Freedom of Information Act
4 3 (5.45%) Private Cloud
5 2 (3.64%) Clustering
6 1 (1.82%) NHS
Operating Systems
1 55 (100.00%) Linux
2 34 (61.82%) Red Hat Enterprise Linux
3 18 (32.73%) Windows
4 14 (25.45%) Windows Server
5 13 (23.64%) Unix
6 12 (21.82%) Windows 10
7 4 (7.27%) Solaris
8 3 (5.45%) CoreOS
Processes & Methodologies
1 29 (52.73%) DevOps
2 21 (38.18%) Continuous Integration
3 17 (30.91%) Deployment Automation
4 12 (21.82%) Storage Management
5 10 (18.18%) Data Security
5 10 (18.18%) Problem-Solving
5 10 (18.18%) Release Management
5 10 (18.18%) Security Management
5 10 (18.18%) User Acceptance Testing
6 8 (14.55%) Agile Software Development
7 7 (12.73%) Infrastructure Engineering
7 7 (12.73%) Scrum
8 6 (10.91%) Immutable Infrastructure
9 5 (9.09%) Build Automation
9 5 (9.09%) Microservices
9 5 (9.09%) Virtual Environments
10 4 (7.27%) Continuous Delivery
10 4 (7.27%) Data Protection
10 4 (7.27%) Project Management
10 4 (7.27%) Risk Management
Programming Languages
1 17 (30.91%) SQL
2 15 (27.27%) Bash Shell
3 13 (23.64%) Python
4 12 (21.82%) Java
5 7 (12.73%) Groovy
6 5 (9.09%) Perl
6 5 (9.09%) PowerShell
Qualifications
1 27 (49.09%) Security Cleared
2 13 (23.64%) SC Cleared
3 12 (21.82%) DV Cleared
4 3 (5.45%) VCAP
4 3 (5.45%) VCDX
5 2 (3.64%) MCSA
5 2 (3.64%) Microsoft Certification
6 1 (1.82%) Degree
Quality Assurance & Compliance
1 1 (1.82%) QA
System Software
1 14 (25.45%) Docker
2 12 (21.82%) VMware ESXi
3 4 (7.27%) Active Directory
4 3 (5.45%) Apache ZooKeeper
5 2 (3.64%) VMware Infrastructure
Systems Management
1 22 (40.00%) Terraform
2 20 (36.36%) Puppet
3 17 (30.91%) Kubernetes
4 12 (21.82%) vCenter Server
5 10 (18.18%) Ansible
6 5 (9.09%) Consul
6 5 (9.09%) Packer
7 1 (1.82%) logstash
7 1 (1.82%) ZABBIX
Vendors
1 16 (29.09%) Splunk
2 15 (27.27%) Red Hat
3 14 (25.45%) VMware
4 12 (21.82%) Cisco
4 12 (21.82%) NetApp
5 5 (9.09%) Microsoft
6 3 (5.45%) Hortonworks
7 1 (1.82%) Oracle