The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Grails skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Grails over the 3 months to 30 March 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.

Grails
England / London
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 384 362 387
Rank change year-on-year -22 +25  
Contract jobs citing Grails 16 72 33
As % of all contract IT jobs advertised in London 0.081% 0.32% 0.15%
As % of the Libraries, Frameworks & Software Standards category 0.23% 1.00% 0.51%
Number of daily rates quoted 12 40 28
Median daily rate £525 £488 £475
Median daily rate % change year-on-year +7.69% +2.63%  
90% offered a daily rate of more than £401 £425 £441
10% offered a daily rate of more than £570 £550 £533
UK excluding London median daily rate £350 £325 £350
% change year-on-year +7.69% -7.14%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Grails is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
London
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 6838 7197 6469
As % of all contract IT job vacancies advertised in London 34.70% 31.89% 30.20%
Number of daily rates quoted 5104 5408 4685
Median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.55% +5.88%  
90% offered a daily rate of more than £345 £325 £310
10% offered a daily rate of more than £613 £600 £575
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 48 28 27
Median hourly rate £47.50 £50.00 £27.37
Median hourly rate % change year-on-year -5.00% +82.68%  
90% offered a hourly rate of more than £17.01 £21.37 £20.00
10% offered a hourly rate of more than £100.00 £55.00 £55.00
UK excluding London median hourly rate £41.00 £38.00 £36.00
% change year-on-year +7.89% +5.55%  

Grails
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing Grails as a proportion of all contract or permanent IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for Grails in London

Grails
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Grails in London

Grails
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Grails in London over the 3 months to 30 March 2017.

Contractor daily rate histogram for Grails in London

Grails
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Grails in London.

Contractor hourly rate trend for Grails in London

Grails
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Grails within the London region over the 3 months to 30 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +8 2 £413 -15.38% 1
Isleworth - 2 - -
Grails
England

For the 6 months to 30 March 2017, IT contractor jobs citing Grails 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 London region with a requirement for Grails.

1 30 (100.00%) Java
2 28 (93.33%) Agile Software Development
3 24 (80.00%) Groovy
4 19 (63.33%) TDD
5 17 (56.67%) Spring
6 14 (46.67%) Continuous Integration
6 14 (46.67%) JavaScript
7 13 (43.33%) Scrum
8 11 (36.67%) CSS
8 11 (36.67%) REST
9 10 (33.33%) Git (software)
9 10 (33.33%) Microservices
9 10 (33.33%) HTML
10 9 (30.00%) Web Services
11 8 (26.67%) MVC
11 8 (26.67%) PostgreSQL
11 8 (26.67%) BDD
12 7 (23.33%) CSS3
12 7 (23.33%) HTML5
12 7 (23.33%) AngularJS
12 7 (23.33%) Hibernate
12 7 (23.33%) XML
12 7 (23.33%) MySQL
13 6 (20.00%) SOAP
13 6 (20.00%) IntelliJ
13 6 (20.00%) Maven
13 6 (20.00%) Jenkins
13 6 (20.00%) Spring Boot
13 6 (20.00%) jQuery
13 6 (20.00%) RESTful

Grails
Co-occurring IT Skills in 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 5 (16.67%) Apache
1 5 (16.67%) CMS
1 5 (16.67%) Confluence
1 5 (16.67%) Tomcat
1 5 (16.67%) WebLogic
2 4 (13.33%) Elasticsearch
3 2 (6.67%) Apache Solr
4 1 (3.33%) Mule
4 1 (3.33%) Mule ESB
Cloud Services
1 5 (16.67%) IaaS
1 5 (16.67%) PaaS
2 3 (10.00%) Amazon AWS
Communications & Networking
1 1 (3.33%) Internet
Database & Business Intelligence
1 8 (26.67%) PostgreSQL
2 7 (23.33%) MySQL
3 5 (16.67%) Hadoop
3 5 (16.67%) HBase
4 4 (13.33%) NoSQL
4 4 (13.33%) Relational Database
5 3 (10.00%) MongoDB
6 1 (3.33%) Big Data
Development Applications
1 10 (33.33%) Git (software)
2 6 (20.00%) IntelliJ
2 6 (20.00%) Jenkins
2 6 (20.00%) Maven
3 5 (16.67%) Eclipse
3 5 (16.67%) Gradle
3 5 (16.67%) JIRA
4 4 (13.33%) JUnit
4 4 (13.33%) Mercurial
5 3 (10.00%) Ant
5 3 (10.00%) Subversion
6 2 (6.67%) Spock
7 1 (3.33%) CMake
7 1 (3.33%) CodeNarc
7 1 (3.33%) GitLab
7 1 (3.33%) Mockito
General
1 5 (16.67%) Finance
1 5 (16.67%) Games
Job Titles
1 27 (90.00%) Developer
2 26 (86.67%) Java Developer
3 8 (26.67%) Senior Developer
3 8 (26.67%) Senior Java Developer
4 4 (13.33%) Agile Developer
4 4 (13.33%) Agile Java Developer
5 2 (6.67%) Hadoop Developer
5 2 (6.67%) Java Hadoop Developer
5 2 (6.67%) Oracle Developer
5 2 (6.67%) Software Developer
5 2 (6.67%) Technical Leader
6 1 (3.33%) Applications Developer
6 1 (3.33%) Full Stack Developer
6 1 (3.33%) Java Applications Developer
6 1 (3.33%) Java Software Developer
6 1 (3.33%) Java Web Applications Developer
6 1 (3.33%) Java Web Developer
6 1 (3.33%) SC Cleared Java Developer
6 1 (3.33%) Web Applications Developer
6 1 (3.33%) Web Developer
Libraries, Frameworks & Software Standards
1 17 (56.67%) Spring
2 11 (36.67%) CSS
2 11 (36.67%) REST
3 10 (33.33%) HTML
4 9 (30.00%) Web Services
5 7 (23.33%) AngularJS
5 7 (23.33%) CSS3
5 7 (23.33%) Hibernate
5 7 (23.33%) HTML5
5 7 (23.33%) XML
6 6 (20.00%) jQuery
6 6 (20.00%) RESTful
6 6 (20.00%) SOAP
6 6 (20.00%) Spring Boot
7 5 (16.67%) Apache Camel
7 5 (16.67%) J2EE
7 5 (16.67%) JMS
7 5 (16.67%) JSON
7 5 (16.67%) Spring MVC
7 5 (16.67%) Struts
Miscellaneous
1 4 (13.33%) Data Structures
2 3 (10.00%) Analytical Skills
3 1 (3.33%) Fintech
3 1 (3.33%) User Experience
3 1 (3.33%) Virtual Team
Operating Systems
1 5 (16.67%) Linux
2 1 (3.33%) Debian
2 1 (3.33%) Ubuntu
Processes & Methodologies
1 28 (93.33%) Agile Software Development
2 19 (63.33%) TDD
3 14 (46.67%) Continuous Integration
4 13 (43.33%) Scrum
5 10 (33.33%) Microservices
6 8 (26.67%) BDD
6 8 (26.67%) MVC
7 5 (16.67%) API Development
7 5 (16.67%) E-Commerce
7 5 (16.67%) Kanban
7 5 (16.67%) Open Source
7 5 (16.67%) Test Automation
7 5 (16.67%) UML
8 4 (13.33%) API Integration
8 4 (13.33%) Automated Testing
8 4 (13.33%) Continuous Delivery
8 4 (13.33%) High Availability
8 4 (13.33%) Pair Programming
8 4 (13.33%) Performance Tuning
8 4 (13.33%) Web Development
Programming Languages
1 30 (100.00%) Java
2 24 (80.00%) Groovy
3 14 (46.67%) JavaScript
4 3 (10.00%) Clojure
4 3 (10.00%) Jython
4 3 (10.00%) Python
4 3 (10.00%) Scala
5 1 (3.33%) C++
5 1 (3.33%) ES6
5 1 (3.33%) SQL
Qualifications
1 5 (16.67%) SC Cleared
1 5 (16.67%) Security Cleared
Quality Assurance & Compliance
1 2 (6.67%) QA
System Software
1 5 (16.67%) Docker
Systems Management
1 5 (16.67%) Kubernetes
2 3 (10.00%) Puppet
3 1 (3.33%) Ansible
Vendors
1 5 (16.67%) ATG
1 5 (16.67%) Oracle