The following table provides summary statistics for contract job vacancies with a requirement for VoltDB skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited VoltDB over the 3 months to 24 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.

VoltDB
UK
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank - 629 -
Contract jobs citing VoltDB 0 15 0
As % of all contract IT jobs advertised in the UK - 0.028% -
As % of the Database & Business Intelligence category - 0.13% -
Number of daily rates quoted 0 13 0
Median daily rate - £450 -
UK excluding London median daily rate - £450 -
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

VoltDB is in the database and business intelligence skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
UK
Contract job vacancies with a requirement for database and business intelligence skills 10382 11757 13183
As % of all contract IT job vacancies advertised in the UK 22.44% 21.86% 23.50%
Number of daily rates quoted 6788 7965 8622
Median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25%  
90% offered a daily rate of more than £325 £300 £275
10% offered a daily rate of more than £600 £600 £550
UK excluding London median daily rate £400 £383 £350
% change year-on-year +4.57% +9.28%  
Number of hourly rates quoted 142 195 185
Median hourly rate £31.50 £31.27 £26.75
Median hourly rate % change year-on-year +0.73% +16.89%  
90% offered a hourly rate of more than £13.20 £12.00 £15.35
10% offered a hourly rate of more than £50.00 £49.00 £52.17
UK excluding London median hourly rate £38.00 £31.00 £26.00
% change year-on-year +22.58% +19.23%  

VoltDB
Job Vacancy Trend

The job posting trend of jobs advertised citing VoltDB as a proportion of all contract or permanent IT jobs with a match in the Database & Business Intelligence category.

Job vacancy trend for VoltDB in the UK

VoltDB
Contractor Daily Rate Trend

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

Contractor daily rate trend for VoltDB in the UK

For the 6 months to 24 June 2017, IT contractor jobs citing VoltDB also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for VoltDB.

1 1 (100.00%) Java
1 1 (100.00%) PL/SQL
1 1 (100.00%) SQL
1 1 (100.00%) JBoss
1 1 (100.00%) Data Modelling
1 1 (100.00%) Hibernate
1 1 (100.00%) Spring
1 1 (100.00%) Maven
1 1 (100.00%) SC Cleared
1 1 (100.00%) Security Cleared
1 1 (100.00%) Apache Cassandra
1 1 (100.00%) HBase
1 1 (100.00%) Impala
1 1 (100.00%) Apache Kudu

VoltDB
Co-occurring IT Skills 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 1 (100.00%) JBoss
Database & Business Intelligence
1 1 (100.00%) Apache Cassandra
1 1 (100.00%) Apache Kudu
1 1 (100.00%) HBase
1 1 (100.00%) Impala
Development Applications
1 1 (100.00%) Maven
Job Titles
1 1 (100.00%) Database Developer
1 1 (100.00%) Developer
1 1 (100.00%) Java Developer
1 1 (100.00%) PL/SQL Developer
1 1 (100.00%) SC Cleared Java Developer
1 1 (100.00%) SQL Database Developer
1 1 (100.00%) SQL Developer
Libraries, Frameworks & Software Standards
1 1 (100.00%) Hibernate
1 1 (100.00%) Spring
Processes & Methodologies
1 1 (100.00%) Data Modelling
Programming Languages
1 1 (100.00%) Java
1 1 (100.00%) PL/SQL
1 1 (100.00%) SQL
Qualifications
1 1 (100.00%) SC Cleared
1 1 (100.00%) Security Cleared