The following table provides summary statistics for contract job vacancies advertised in Middlesex with a requirement for Continuous Integration skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Continuous Integration over the 3 months to 29 June 2017 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.

Continuous Integration
South East > Middlesex
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 8 20 23
Rank change year-on-year +12 +3  
Contract jobs citing Continuous Integration 8 7 1
As % of all contract IT jobs advertised in Middlesex 8.00% 3.89% 0.54%
As % of the Processes & Methodologies category 8.99% 4.29% 0.72%
Number of daily rates quoted 14 5 1
Middlesex median daily rate £500 £360 £470
Median daily rate % change year-on-year +38.88% -23.40%  
South East median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25%  
Number of hourly rates quoted 0 1 0
Middlesex median hourly rate - £45.00 -
South East median hourly rate £48.50 £40.00 £45.00
% change year-on-year +21.25% -11.11%  

Continuous Integration is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Middlesex with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Middlesex
Contract job vacancies with a requirement for process and methodology skills 89 163 139
As % of all contract IT job vacancies advertised in Middlesex 89.00% 90.56% 75.14%
Number of daily rates quoted 227 347 220
Middlesex median daily rate £475 £400 £387
Median daily rate % change year-on-year +18.75% +3.35%  
10th Percentile £278 £275 £263
90th Percentile £538 £556 £513
South East median daily rate £425 £413 £400
% change year-on-year +3.03% +3.12%  
Number of hourly rates quoted 1 13 10
Middlesex median hourly rate £43.00 £45.00 £45.00
Median hourly rate % change year-on-year -4.44% -  
10th Percentile £41.50 £43.30 £15.75
90th Percentile £44.50 £48.35 £47.50
South East median hourly rate £29.75 £32.00 £25.00
% change year-on-year -7.03% +28.00%  

Continuous Integration
Job Vacancy Trend in Middlesex

Job postings citing Continuous Integration as a percentage of all IT jobs advertised in Middlesex.

Job vacancy trend for Continuous Integration in Middlesex

Continuous Integration
Contractor Daily Rate Trend in Middlesex

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Continuous Integration in Middlesex.

Contractor daily rate trend for Continuous Integration in Middlesex

For the 6 months to 29 June 2017, IT contractor jobs citing Continuous Integration also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Middlesex region with a requirement for Continuous Integration.

1 11 (73.33%) Amazon AWS
1 11 (73.33%) Puppet
1 11 (73.33%) Opscode Chef
1 11 (73.33%) Ansible
2 10 (66.67%) OpenStack
2 10 (66.67%) Java
2 10 (66.67%) Python
3 9 (60.00%) Agile Software Development
3 9 (60.00%) TDD
4 8 (53.33%) NoSQL
5 7 (46.67%) Microsoft Azure
5 7 (46.67%) Continuous Deployment
6 6 (40.00%) Jenkins
6 6 (40.00%) MSTest
6 6 (40.00%) NUnit
6 6 (40.00%) WebSphere
6 6 (40.00%) PostgreSQL
6 6 (40.00%) WebLogic
6 6 (40.00%) Linux
6 6 (40.00%) OO
6 6 (40.00%) Tomcat
6 6 (40.00%) MySQL
6 6 (40.00%) Oracle
7 5 (33.33%) Configuration Management
7 5 (33.33%) GitHub
7 5 (33.33%) DevOps
7 5 (33.33%) Salt
7 5 (33.33%) Virtual Team
8 4 (26.67%) Fluentd
8 4 (26.67%) Graphite

Continuous Integration
Co-occurring IT Skills in Middlesex 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 10 (66.67%) OpenStack
2 6 (40.00%) Tomcat
2 6 (40.00%) WebLogic
2 6 (40.00%) WebSphere
3 4 (26.67%) Elasticsearch
Cloud Services
1 11 (73.33%) Amazon AWS
2 7 (46.67%) Microsoft Azure
3 5 (33.33%) GitHub
4 1 (6.67%) OpenShift
Communications & Networking
1 2 (13.33%) DVB
1 2 (13.33%) HTTP
Database & Business Intelligence
1 8 (53.33%) NoSQL
2 6 (40.00%) MySQL
2 6 (40.00%) PostgreSQL
3 4 (26.67%) InfluxDB
Development Applications
1 6 (40.00%) Jenkins
1 6 (40.00%) MSTest
1 6 (40.00%) NUnit
2 4 (26.67%) Ant
2 4 (26.67%) Gradle
2 4 (26.67%) Maven
3 3 (20.00%) Git (software)
4 1 (6.67%) Artifactory
4 1 (6.67%) Jasmine
4 1 (6.67%) Team Foundation Server
General
1 2 (13.33%) Telecoms
Job Titles
1 8 (53.33%) Developer
2 6 (40.00%) Java Developer
3 4 (26.67%) DevOps Engineer
4 3 (20.00%) Systems Engineer
5 2 (13.33%) DevOps Systems Engineer
5 2 (13.33%) Python Developer
6 1 (6.67%) Angular Developer
6 1 (6.67%) AWS Consultant
6 1 (6.67%) Azure Consultant
6 1 (6.67%) C Developer
6 1 (6.67%) C/C++ Developer
6 1 (6.67%) Cloud Consultant
6 1 (6.67%) Embedded C Developer
6 1 (6.67%) Embedded C/C++ Developer
6 1 (6.67%) Embedded C++ Developer
6 1 (6.67%) Embedded Developer
6 1 (6.67%) JavaScript Developer
6 1 (6.67%) Junior DevOps
6 1 (6.67%) Junior DevOps Engineer
6 1 (6.67%) Operations Engineer
Libraries, Frameworks & Software Standards
1 4 (26.67%) Sensu
1 4 (26.67%) Web Services
2 3 (20.00%) HTML
2 3 (20.00%) HTML5
2 3 (20.00%) Node.js
3 2 (13.33%) REST
4 1 (6.67%) AngularJS
4 1 (6.67%) CSS
4 1 (6.67%) CSS3
4 1 (6.67%) React
Miscellaneous
1 5 (33.33%) Virtual Team
2 3 (20.00%) Computer Science
3 2 (13.33%) Analytical Skills
3 2 (13.33%) Digital TV
3 2 (13.33%) MPEG
3 2 (13.33%) STB
Operating Systems
1 6 (40.00%) Linux
2 1 (6.67%) Red Hat Enterprise Linux
Processes & Methodologies
1 9 (60.00%) Agile Software Development
1 9 (60.00%) TDD
2 7 (46.67%) Continuous Deployment
3 6 (40.00%) OO
4 5 (33.33%) Configuration Management
4 5 (33.33%) DevOps
5 4 (26.67%) Software Delivery
6 2 (13.33%) Scrum
6 2 (13.33%) SOA
6 2 (13.33%) Software Architecture
6 2 (13.33%) User Stories
7 1 (6.67%) BDD
7 1 (6.67%) Continuous Improvement
7 1 (6.67%) Front End Development
7 1 (6.67%) MVC
7 1 (6.67%) Pair Programming
7 1 (6.67%) Use Case
Programming Languages
1 10 (66.67%) Java
1 10 (66.67%) Python
2 4 (26.67%) Ruby
3 2 (13.33%) C
3 2 (13.33%) C++
3 2 (13.33%) SQL
4 1 (6.67%) JavaScript
Qualifications
1 4 (26.67%) Degree
1 4 (26.67%) SC Cleared
1 4 (26.67%) Security Cleared
2 1 (6.67%) Computer Science Degree
System Software
1 1 (6.67%) Docker
1 1 (6.67%) Gluster
Systems Management
1 11 (73.33%) Ansible
1 11 (73.33%) Opscode Chef
1 11 (73.33%) Puppet
2 5 (33.33%) Salt
3 4 (26.67%) Fluentd
3 4 (26.67%) Graphite
3 4 (26.67%) logstash
3 4 (26.67%) Prometheus
3 4 (26.67%) StatsD
3 4 (26.67%) ZABBIX
4 1 (6.67%) Kubernetes
Vendors
1 6 (40.00%) Oracle
2 4 (26.67%) Rackspace