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

3 months to
23 Mar 2017
Same period 2016 Same period 2015
Java Persistence API (JPA)
London / City of London
Rank 144 154 192
Rank change year-on-year +10 +38  
Contract jobs citing JPA 9 7 4
As % of all contract IT jobs advertised in the City of London 0.30% 0.21% 0.080%
As % of the Libraries, Frameworks & Software Standards category 0.86% 0.65% 0.26%
Number of daily rates quoted 8 7 3
Median daily rate £625 £550 £400
Median daily rate % change year-on-year +13.63% +37.50%  
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £37.50 - £45.00

JPA 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 the City of London with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
City of London
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 1045 1073 1519
As % of all contract IT job vacancies advertised in the City of London 34.89% 32.63% 30.21%
Number of daily rates quoted 865 906 1209
Median daily rate £475 £463 £425
Median daily rate % change year-on-year +2.70% +8.82%  
90% offered a daily rate of more than £338 £325 £315
10% offered a daily rate of more than £625 £600 £577
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 1 5 6
Median hourly rate £35.00 £55.00 £27.37
Median hourly rate % change year-on-year -36.36% +100.94%  
UK excluding London median hourly rate £40.00 £38.00 £36.00
% change year-on-year +5.26% +5.55%  

JPA
Job Vacancy Trend in the City of London

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

Job vacancy trend for JPA in the City of London

JPA
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for JPA in the City of London

JPA
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing JPA in the City of London over the 3 months to 23 March 2017.

Contractor daily rate histogram for JPA in the City of London

JPA
Top 30 Related IT Skills in the City of London

For the 6 months to 23 March 2017, IT contractor jobs citing JPA 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 City of London region with a requirement for JPA.

1 20 (100.00%) Java
2 19 (95.00%) Spring
3 18 (90.00%) Hibernate
4 17 (85.00%) Finance
4 17 (85.00%) JSON
5 16 (80.00%) REST
6 15 (75.00%) Jenkins
6 15 (75.00%) TDD
6 15 (75.00%) J2EE
7 14 (70.00%) JSP
8 13 (65.00%) Banking
8 13 (65.00%) Spring Boot
9 11 (55.00%) MVC
9 11 (55.00%) Agile Software Development
10 10 (50.00%) Web Services
10 10 (50.00%) JUnit
10 10 (50.00%) Bash Shell
11 9 (45.00%) Mockito
11 9 (45.00%) Maven
11 9 (45.00%) Continuous Integration
11 9 (45.00%) Multithreading
11 9 (45.00%) XML
12 8 (40.00%) SQL
12 8 (40.00%) CruiseControl
12 8 (40.00%) TIBCO
12 8 (40.00%) JAXB
12 8 (40.00%) Build Forge
12 8 (40.00%) TIBCO EMS
12 8 (40.00%) Dependency Injection
12 8 (40.00%) Inversion of Control

JPA
Top Related IT Skills in the City of 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 6 (30.00%) Mule
1 6 (30.00%) Tomcat
1 6 (30.00%) WebLogic
2 3 (15.00%) Apache Spark
3 1 (5.00%) JBoss
3 1 (5.00%) WebSphere
3 1 (5.00%) WebSphere Process Server
Business Applications
1 1 (5.00%) Loan IQ
Communications & Networking
1 2 (10.00%) AMQP
Database & Business Intelligence
1 3 (15.00%) Hadoop
2 2 (10.00%) MySQL
2 2 (10.00%) RDBMS
2 2 (10.00%) Relational Database
2 2 (10.00%) SQL Server
3 1 (5.00%) DB2
Development Applications
1 15 (75.00%) Jenkins
2 10 (50.00%) JUnit
3 9 (45.00%) Maven
3 9 (45.00%) Mockito
4 8 (40.00%) Build Forge
4 8 (40.00%) CruiseControl
4 8 (40.00%) Hudson
5 7 (35.00%) Cucumber
6 6 (30.00%) EasyMock
6 6 (30.00%) JIRA
6 6 (30.00%) Selenium
7 2 (10.00%) Git (software)
7 2 (10.00%) Subversion
8 1 (5.00%) Atlassian Bamboo
8 1 (5.00%) Eclipse
8 1 (5.00%) jMock
General
1 17 (85.00%) Finance
2 13 (65.00%) Banking
3 6 (30.00%) Investment Banking
4 3 (15.00%) Front Office
5 2 (10.00%) Advertising
5 2 (10.00%) Games
6 1 (5.00%) Back Office
Job Titles
1 20 (100.00%) Developer
2 19 (95.00%) Java Developer
3 12 (60.00%) Senior Developer
3 12 (60.00%) Senior Java Developer
4 5 (25.00%) Core Java Developer
5 3 (15.00%) .NET Developer
5 3 (15.00%) C# .NET Developer
5 3 (15.00%) C# Developer
5 3 (15.00%) Senior .NET Developer
5 3 (15.00%) Senior C# .NET Developer
5 3 (15.00%) Senior C# Developer
6 2 (10.00%) Front Office Developer
6 2 (10.00%) Java Engineer
6 2 (10.00%) Low Latency Java Developer
7 1 (5.00%) Commodities Java Developer
7 1 (5.00%) J2EE Developer
7 1 (5.00%) Java/J2EE Developer
7 1 (5.00%) Senior J2EE Developer
7 1 (5.00%) Senior Java/J2EE Developer
Libraries, Frameworks & Software Standards
1 19 (95.00%) Spring
2 18 (90.00%) Hibernate
3 17 (85.00%) JSON
4 16 (80.00%) REST
5 15 (75.00%) J2EE
6 14 (70.00%) JSP
7 13 (65.00%) Spring Boot
8 10 (50.00%) Web Services
9 9 (45.00%) XML
10 8 (40.00%) JAXB
10 8 (40.00%) TIBCO EMS
11 7 (35.00%) HTML
11 7 (35.00%) Java EE
11 7 (35.00%) JMS
12 6 (30.00%) .NET
12 6 (30.00%) ActiveMQ
12 6 (30.00%) Apache Camel
12 6 (30.00%) CSS
12 6 (30.00%) SOAP
12 6 (30.00%) WebSphere MQ
Miscellaneous
1 6 (30.00%) Data Structures
1 6 (30.00%) Foreign Exchange (FX)
2 3 (15.00%) Analytical Skills
2 3 (15.00%) Computer Science
2 3 (15.00%) Derivative
3 1 (5.00%) Web 2.0
Operating Systems
1 7 (35.00%) Linux
2 6 (30.00%) Unix
3 1 (5.00%) Windows
3 1 (5.00%) Windows Server
Processes & Methodologies
1 15 (75.00%) TDD
2 11 (55.00%) Agile Software Development
2 11 (55.00%) MVC
3 9 (45.00%) Continuous Integration
3 9 (45.00%) Multithreading
4 8 (40.00%) Dependency Injection
4 8 (40.00%) Inversion of Control
5 7 (35.00%) BDD
5 7 (35.00%) OO
5 7 (35.00%) Unit Testing
6 6 (30.00%) Concurrent Programming
6 6 (30.00%) Microservices
6 6 (30.00%) UML
7 4 (20.00%) Low Latency
8 2 (10.00%) Software Engineering
9 1 (5.00%) AOP
9 1 (5.00%) Data Modelling
9 1 (5.00%) Functional Programming
9 1 (5.00%) Regulatory Compliance
9 1 (5.00%) Test Scripting
Programming Languages
1 20 (100.00%) Java
2 10 (50.00%) Bash Shell
3 8 (40.00%) SQL
4 7 (35.00%) JavaScript
4 7 (35.00%) PL/SQL
5 6 (30.00%) C#
5 6 (30.00%) Shell Script
6 3 (15.00%) C
6 3 (15.00%) PowerShell
6 3 (15.00%) Python
6 3 (15.00%) VBA
Qualifications
1 3 (15.00%) Degree
Systems Management
1 1 (5.00%) Control-M
Vendors
1 8 (40.00%) TIBCO
2 7 (35.00%) Oracle
3 2 (10.00%) Sybase
4 1 (5.00%) Actimize
4 1 (5.00%) Red Hat