The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Apache Sling skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Apache Sling over the 3 months to 23 April 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.

Apache Sling
England / London
3 months to
23 Apr 2017
Same period 2016 Same period 2015
Rank 398 - 413
Rank change year-on-year - 0  
Contract jobs citing Apache Sling 15 0 7
As % of all contract IT jobs advertised in London 0.073% - 0.031%
As % of the Libraries, Frameworks & Software Standards category 0.21% - 0.10%
Number of daily rates quoted 15 0 6
Median daily rate £663 - £450
90% offered a daily rate of more than £475 - £438
10% offered a daily rate of more than £700 - £525
UK excluding London median daily rate - £450 -
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Apache Sling 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 7105 7401 6819
As % of all contract IT job vacancies advertised in London 34.68% 31.95% 30.46%
Number of daily rates quoted 5303 5586 4846
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 £340 £325 £305
10% offered a daily rate of more than £613 £600 £575
UK excluding London median daily rate £375 £375 £350
% change year-on-year - +7.14%  
Number of hourly rates quoted 53 25 31
Median hourly rate £45.00 £26.25 £22.18
Median hourly rate % change year-on-year +71.42% +18.34%  
90% offered a hourly rate of more than £17.01 £17.35 £19.00
10% offered a hourly rate of more than £55.00 £54.00 £55.00
UK excluding London median hourly rate £41.50 £38.00 £36.38
% change year-on-year +9.21% +4.46%  

Apache Sling
Job Vacancy Trend in London

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

Job vacancy trend for Apache Sling in London

Apache Sling
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Apache Sling in London

Apache Sling
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Apache Sling in London over the 3 months to 23 April 2017.

Contractor daily rate histogram for Apache Sling in London

For the 6 months to 23 April 2017, IT contractor jobs citing Apache Sling 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 Apache Sling.

1 60 (100.00%) Adobe Experience Manager
2 55 (91.67%) Adobe
3 50 (83.33%) Apache Felix
4 46 (76.67%) Agile Software Development
5 43 (71.67%) JavaScript
5 43 (71.67%) CSS
6 37 (61.67%) SOAP
6 37 (61.67%) XML
6 37 (61.67%) SQL
6 37 (61.67%) RESTful
7 36 (60.00%) HTML
8 35 (58.33%) Web Services
9 34 (56.67%) JSON
10 33 (55.00%) Apache
10 33 (55.00%) OSGi
10 33 (55.00%) jQuery
11 28 (46.67%) OO
11 28 (46.67%) Java
11 28 (46.67%) Ajax
12 27 (45.00%) OOD
13 26 (43.33%) Lucene
13 26 (43.33%) RabbitMQ
13 26 (43.33%) Apache Solr
14 21 (35.00%) JSP
15 20 (33.33%) Servlets
16 17 (28.33%) Maven
17 16 (26.67%) REST
18 15 (25.00%) Jackrabbit
18 15 (25.00%) Java EE
19 14 (23.33%) Spring

Apache Sling
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 60 (100.00%) Adobe Experience Manager
2 33 (55.00%) Apache
3 26 (43.33%) Apache Solr
4 13 (21.67%) CMS
5 8 (13.33%) JBoss
5 8 (13.33%) Tomcat
6 2 (3.33%) IIS
Applications
1 1 (1.67%) Microsoft PowerPoint
1 1 (1.67%) MS Visio
Cloud Services
1 3 (5.00%) Amazon AWS
Communications & Networking
1 3 (5.00%) DNS
Database & Business Intelligence
1 15 (25.00%) Jackrabbit
Development Applications
1 17 (28.33%) Maven
2 9 (15.00%) Git (software)
3 8 (13.33%) Gradle
4 6 (10.00%) Eclipse
5 5 (8.33%) JUnit
5 5 (8.33%) Mockito
5 5 (8.33%) Subversion
6 2 (3.33%) IntelliJ
General
1 6 (10.00%) Retail
2 5 (8.33%) Banking
3 3 (5.00%) Retail Banking
4 2 (3.33%) Finance
5 1 (1.67%) Marketing
5 1 (1.67%) Publishing
Job Titles
1 55 (91.67%) Developer
2 14 (23.33%) Java Developer
3 6 (10.00%) Architect
4 4 (6.67%) Lead Developer
5 3 (5.00%) Applications Developer
6 1 (1.67%) Front End Developer (Client-Side Developer)
6 1 (1.67%) Senior Developer
Libraries, Frameworks & Software Standards
1 50 (83.33%) Apache Felix
2 43 (71.67%) CSS
3 37 (61.67%) RESTful
3 37 (61.67%) SOAP
3 37 (61.67%) XML
4 36 (60.00%) HTML
5 35 (58.33%) Web Services
6 34 (56.67%) JSON
7 33 (55.00%) jQuery
7 33 (55.00%) OSGi
8 28 (46.67%) Ajax
9 26 (43.33%) Lucene
9 26 (43.33%) RabbitMQ
10 21 (35.00%) JSP
11 20 (33.33%) Servlets
12 16 (26.67%) REST
13 15 (25.00%) Java EE
14 14 (23.33%) Spring
15 9 (15.00%) Hibernate
16 8 (13.33%) JSTL
Miscellaneous
1 5 (8.33%) User Experience
2 2 (3.33%) Analytical Skills
2 2 (3.33%) Computer Science
3 1 (1.67%) Mobile App
3 1 (1.67%) Taxonomies
Processes & Methodologies
1 46 (76.67%) Agile Software Development
2 28 (46.67%) OO
3 27 (45.00%) OOD
4 9 (15.00%) MVC
5 8 (13.33%) Scrum
6 7 (11.67%) BEM - Block Element Modifier
6 7 (11.67%) SMACSS
7 6 (10.00%) Front End Development
8 5 (8.33%) A/B Testing
8 5 (8.33%) Continuous Integration
8 5 (8.33%) DevOps
8 5 (8.33%) Kalman Filter
8 5 (8.33%) SEO
8 5 (8.33%) Software Testing
8 5 (8.33%) TDD
8 5 (8.33%) Test Scripting
8 5 (8.33%) Web Development
9 4 (6.67%) Migration
10 3 (5.00%) Analytics
10 3 (5.00%) Content Management
Programming Languages
1 43 (71.67%) JavaScript
2 37 (61.67%) SQL
3 28 (46.67%) Java
4 3 (5.00%) C#
5 2 (3.33%) PowerShell
6 1 (1.67%) Shell Script
Qualifications
1 2 (3.33%) Degree
Vendors
1 55 (91.67%) Adobe
2 6 (10.00%) SAP