Period
to 16 October 2018

The following table provides summary statistics for contract job vacancies advertised in South London 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 16 October 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
London > South London
6 months to
16 Oct 2018
Same period 2017 Same period 2016
Rank 83 52 38
Rank change year-on-year -31 -14 +5
Contract jobs citing CentOS 55 64 60
As % of all contract IT jobs advertised in South London 2.90% 5.02% 5.54%
As % of the Operating Systems category 13.78% 18.13% 21.82%
Number of daily rates quoted 35 38 20
South London median daily rate £475 £414 £475
Median daily rate % change year-on-year +14.80% -12.89% +5.56%
10th Percentile £388 £360 £425
90th Percentile £719 £550 £532
London median daily rate £550 £500 £500
% change year-on-year +10.00% - +17.65%
Number of hourly rates quoted 0 0 0
South London median hourly rate - - -
London median hourly rate - £29.00 -

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 South London with a requirement for operating system skills.

All Operating Systems
South London
Contract vacancies with a requirement for operating system skills 399 353 275
As % of all contract IT jobs advertised in South London 21.01% 27.66% 25.39%
Number of daily rates quoted 306 226 162
South London median daily rate £525 £463 £425
Median daily rate % change year-on-year +13.51% +8.82% +21.43%
10th Percentile £314 £200 £263
90th Percentile £588 £582 £533
London median daily rate £488 £475 £450
% change year-on-year +2.63% +5.56% +5.88%
Number of hourly rates quoted 17 30 12
South London median hourly rate £43.75 £47.83 £20.25
Median hourly rate % change year-on-year -8.53% +136.20% -57.66%
10th Percentile £21.20 £22.00 £13.60
90th Percentile £47.83 £53.45 £50.00
London median hourly rate £18.70 £19.00 £18.00
% change year-on-year -1.58% +5.56% +2.68%

CentOS
Job Vacancy Trend in South London

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

Job vacancy trend for CentOS in South London

CentOS
Contractor Daily Rate Trend in South London

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

Contractor daily rate trend for CentOS in South London

CentOS
Contractor Daily Rate Histogram in South London

The daily rate distribution of IT jobs citing CentOS in South London over the 6 months to 16 October 2018.

Contractor daily rate histogram for CentOS in South London

CentOS
Contract Job Locations in South London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the South London region over the 6 months to 16 October 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Croydon -31 48 £463 +15.63% 5
CentOS
London

For the 6 months to 16 October 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 South London region with a requirement for CentOS.

1 55 (100.00%) Linux
2 41 (74.55%) Red Hat Enterprise Linux
3 33 (60.00%) DevOps
4 29 (52.73%) Terraform
5 27 (49.09%) Security Cleared
6 25 (45.45%) Amazon AWS
7 24 (43.64%) Puppet
7 24 (43.64%) Continuous Integration
8 22 (40.00%) Jenkins
9 21 (38.18%) Kubernetes
10 19 (34.55%) Java
11 18 (32.73%) Docker
12 17 (30.91%) SC Cleared
12 17 (30.91%) Deployment Automation
13 15 (27.27%) Python
13 15 (27.27%) Red Hat
13 15 (27.27%) Git (software)
14 14 (25.45%) Ansible
14 14 (25.45%) Windows
14 14 (25.45%) Groovy
15 13 (23.64%) Agile Software Development
15 13 (23.64%) SQL
15 13 (23.64%) Unix
16 12 (21.82%) Maven
16 12 (21.82%) Bash Shell
16 12 (21.82%) Splunk
17 11 (20.00%) JBoss
18 10 (18.18%) Problem-Solving
18 10 (18.18%) Windows Server
18 10 (18.18%) Release Management

CentOS
Co-occurring IT Skills in South London 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 7 (12.73%) Elasticsearch
2 7 (12.73%) Tomcat
3 5 (9.09%) Apache
4 3 (5.45%) OpenStack
5 2 (3.64%) Apache Spark
6 1 (1.82%) Oracle SOA Suite
Cloud Services
1 25 (45.45%) 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%) Microsoft Azure
5 1 (1.82%) Amazon ELB
Communications & Networking
1 8 (14.55%) Firewall
2 2 (3.64%) DHCP
2 2 (3.64%) DNS
3 1 (1.82%) OpenLDAP
3 1 (1.82%) VPN
Database & Business Intelligence
1 10 (18.18%) PostgreSQL
2 8 (14.55%) SQL Server
2 8 (14.55%) SQL Server 2016
3 7 (12.73%) Amazon RDS
4 3 (5.45%) HBase
5 2 (3.64%) Apache Hive
5 2 (3.64%) Big Data
5 2 (3.64%) Hadoop
Development Applications
1 22 (40.00%) Jenkins
2 15 (27.27%) Git (software)
3 12 (21.82%) Maven
4 10 (18.18%) Vagrant
5 5 (9.09%) SonarQube
6 4 (7.27%) JIRA
7 1 (1.82%) Sonatype Nexus
General
1 2 (3.64%) Finance
2 1 (1.82%) Retail
Job Titles
1 27 (49.09%) DevOps Engineer
2 14 (25.45%) AWS DevOps
2 14 (25.45%) Linux Engineer
3 13 (23.64%) Administrator
3 13 (23.64%) Systems Administrator
4 12 (21.82%) AWS Administrator
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%) Unix Administrator
6 10 (18.18%) Unix Systems Administrator
7 8 (14.55%) Senior DevOps
8 7 (12.73%) Network Engineer
9 6 (10.91%) Senior DevOps Engineer
10 5 (9.09%) Infrastructure Engineer
10 5 (9.09%) Kubernetes Engineer
10 5 (9.09%) Network Infrastructure Engineer
11 4 (7.27%) Linux Systems Administrator
Libraries, Frameworks & Software Standards
1 8 (14.55%) Web Services
2 7 (12.73%) Elastic Stack
3 5 (9.09%) LAMP
4 2 (3.64%) Kafka
5 1 (1.82%) ActiveMQ
5 1 (1.82%) OSGi
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 41 (74.55%) Red Hat Enterprise Linux
3 14 (25.45%) Windows
4 13 (23.64%) Unix
5 10 (18.18%) Windows Server
6 8 (14.55%) Windows 10
7 4 (7.27%) Solaris
Processes & Methodologies
1 33 (60.00%) DevOps
2 24 (43.64%) Continuous Integration
3 17 (30.91%) Deployment Automation
4 13 (23.64%) Agile Software Development
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%) Infrastructure Engineering
6 8 (14.55%) Storage Management
7 6 (10.91%) Immutable Infrastructure
8 5 (9.09%) Build Automation
8 5 (9.09%) Microservices
8 5 (9.09%) Virtual Environments
9 4 (7.27%) Continuous Delivery
9 4 (7.27%) Data Protection
9 4 (7.27%) Project Management
9 4 (7.27%) Risk Management
9 4 (7.27%) Scrum
Programming Languages
1 19 (34.55%) Java
2 15 (27.27%) Python
3 14 (25.45%) Groovy
4 13 (23.64%) SQL
5 12 (21.82%) Bash Shell
6 5 (9.09%) Perl
6 5 (9.09%) PowerShell
Qualifications
1 27 (49.09%) Security Cleared
2 17 (30.91%) SC Cleared
3 8 (14.55%) 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 18 (32.73%) Docker
2 8 (14.55%) VMware ESXi
3 4 (7.27%) Active Directory
4 2 (3.64%) VMware Infrastructure
Systems Management
1 29 (52.73%) Terraform
2 24 (43.64%) Puppet
3 21 (38.18%) Kubernetes
4 14 (25.45%) Ansible
5 8 (14.55%) logstash
5 8 (14.55%) vCenter Server
6 7 (12.73%) Kibana
7 5 (9.09%) Consul
7 5 (9.09%) Packer
8 2 (3.64%) Ambari
9 1 (1.82%) ZABBIX
Vendors
1 15 (27.27%) Red Hat
2 12 (21.82%) Splunk
3 10 (18.18%) VMware
4 8 (14.55%) Cisco
4 8 (14.55%) NetApp
5 5 (9.09%) Microsoft
6 2 (3.64%) Cloudera
6 2 (3.64%) Hortonworks
7 1 (1.82%) Oracle