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

Java Database Connectivity (JDBC)
London / City of London
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 143 153 182
Rank change year-on-year +10 +29  
Contract jobs citing JDBC 8 10 14
As % of all contract IT jobs advertised in the City of London 0.26% 0.29% 0.27%
As % of the Libraries, Frameworks & Software Standards category 0.74% 0.90% 0.90%
Number of daily rates quoted 6 10 9
Median daily rate £350 £525 £700
Median daily rate % change year-on-year -33.33% -25.00%  
UK excluding London median daily rate £350 £370 £375
% change year-on-year -5.40% -1.33%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

JDBC 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 1086 1111 1549
As % of all contract IT job vacancies advertised in the City of London 35.01% 32.64% 30.15%
Number of daily rates quoted 899 942 1239
Median daily rate £475 £473 £425
Median daily rate % change year-on-year +0.52% +11.17%  
90% offered a daily rate of more than £338 £325 £308
10% offered a daily rate of more than £625 £600 £580
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 2 5 7
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 £41.00 £38.00 £36.00
% change year-on-year +7.89% +5.55%  

JDBC
Job Vacancy Trend in the City of London

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

Job vacancy trend for JDBC in the City of London

JDBC
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 JDBC in the City of London.

Contractor daily rate trend for JDBC in the City of London

JDBC
Contractor Daily Rate Histogram in the City of London

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

Contractor daily rate histogram for JDBC in the City of London

JDBC
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for JDBC in the City of London

For the 6 months to 30 March 2017, IT contractor jobs citing JDBC 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 JDBC.

1 15 (100.00%) Java
2 11 (73.33%) XML
3 9 (60.00%) Spring
4 8 (53.33%) Agile Software Development
5 7 (46.67%) MVC
5 7 (46.67%) Maven
5 7 (46.67%) SQL
5 7 (46.67%) Git (software)
6 6 (40.00%) RESTful
6 6 (40.00%) Jenkins
6 6 (40.00%) Mockito
6 6 (40.00%) PL/SQL
6 6 (40.00%) Web Services
6 6 (40.00%) JUnit
6 6 (40.00%) JMS
6 6 (40.00%) Shell Script
6 6 (40.00%) TDD
7 5 (33.33%) Java EE
7 5 (33.33%) OO
7 5 (33.33%) JavaScript
7 5 (33.33%) J2EE
7 5 (33.33%) Bash Shell
7 5 (33.33%) Continuous Integration
7 5 (33.33%) Multithreading
7 5 (33.33%) REST
8 4 (26.67%) MongoDB
8 4 (26.67%) Gerrit
8 4 (26.67%) Test Automation
8 4 (26.67%) Microservices
8 4 (26.67%) Data Structures

JDBC
Co-occurring 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 2 (13.33%) WebSphere
2 1 (6.67%) JBoss
2 1 (6.67%) WebSphere Process Server
Business Applications
1 1 (6.67%) ION MarketView
Database & Business Intelligence
1 4 (26.67%) MongoDB
2 2 (13.33%) RDBMS
2 2 (13.33%) Relational Database
Development Applications
1 7 (46.67%) Git (software)
1 7 (46.67%) Maven
2 6 (40.00%) Jenkins
2 6 (40.00%) JUnit
2 6 (40.00%) Mockito
3 4 (26.67%) Ant
3 4 (26.67%) Gerrit
4 1 (6.67%) Atlassian Bamboo
4 1 (6.67%) Cucumber
4 1 (6.67%) Eclipse
4 1 (6.67%) JIRA
4 1 (6.67%) jMock
4 1 (6.67%) Spock
4 1 (6.67%) Subversion
General
1 4 (26.67%) Banking
1 4 (26.67%) Telecoms
2 2 (13.33%) Finance
3 1 (6.67%) Back Office
3 1 (6.67%) Front Office
3 1 (6.67%) Investment Banking
Job Titles
1 14 (93.33%) Developer
1 14 (93.33%) Java Developer
2 5 (33.33%) Senior Developer
2 5 (33.33%) Senior Java Developer
3 4 (26.67%) MongoDB Developer
3 4 (26.67%) Senior Test Automation Developer
3 4 (26.67%) Test Automation Developer
4 1 (6.67%) DevOps Engineer
4 1 (6.67%) Front End Developer (Client-Side Developer)
4 1 (6.67%) Front End Java Developer (Client-Side Java Developer)
Libraries, Frameworks & Software Standards
1 11 (73.33%) XML
2 9 (60.00%) Spring
3 6 (40.00%) JMS
3 6 (40.00%) RESTful
3 6 (40.00%) Web Services
4 5 (33.33%) J2EE
4 5 (33.33%) Java EE
4 5 (33.33%) REST
5 4 (26.67%) EJB
5 4 (26.67%) Hibernate
5 4 (26.67%) HTML
6 3 (20.00%) JPA
6 3 (20.00%) JSP
6 3 (20.00%) Servlets
7 2 (13.33%) AngularJS
7 2 (13.33%) HTML5
7 2 (13.33%) JAXB
7 2 (13.33%) JSON
7 2 (13.33%) Node.js
7 2 (13.33%) Spring Integration
Miscellaneous
1 4 (26.67%) Data Structures
2 2 (13.33%) Web 2.0
3 1 (6.67%) Analytical Skills
3 1 (6.67%) Fixed Income
Operating Systems
1 2 (13.33%) Linux
1 2 (13.33%) Unix
2 1 (6.67%) Windows
2 1 (6.67%) Windows Server
Processes & Methodologies
1 8 (53.33%) Agile Software Development
2 7 (46.67%) MVC
3 6 (40.00%) TDD
4 5 (33.33%) Continuous Integration
4 5 (33.33%) Multithreading
4 5 (33.33%) OO
5 4 (26.67%) Microservices
5 4 (26.67%) OOP
5 4 (26.67%) SDLC
5 4 (26.67%) Test Automation
5 4 (26.67%) UML
6 3 (20.00%) Scrum
6 3 (20.00%) Unit Testing
7 1 (6.67%) BDD
7 1 (6.67%) DevOps
7 1 (6.67%) Electronic Trading
7 1 (6.67%) Front End Development
7 1 (6.67%) Regulatory Compliance
7 1 (6.67%) Release Management
7 1 (6.67%) Test Scripting
Programming Languages
1 15 (100.00%) Java
2 7 (46.67%) SQL
3 6 (40.00%) PL/SQL
3 6 (40.00%) Shell Script
4 5 (33.33%) Bash Shell
4 5 (33.33%) JavaScript
5 1 (6.67%) Korn
5 1 (6.67%) XPath
Qualifications
1 1 (6.67%) Degree
System Software
1 1 (6.67%) Docker
Systems Management
1 1 (6.67%) Control-M
Vendors
1 4 (26.67%) WorldPay
2 2 (13.33%) Oracle
2 2 (13.33%) Solace
2 2 (13.33%) Sybase
3 1 (6.67%) Actimize
3 1 (6.67%) ION Trading
3 1 (6.67%) MuleSoft
3 1 (6.67%) Red Hat
3 1 (6.67%) StreamBase