The following table provides summary statistics for contract job vacancies advertised in England with a requirement for Log4j skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Log4j over the 3 months to 28 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.

Apache Log4j
UK / England
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 574 594 615
Rank change year-on-year +20 +21  
Contract jobs citing Log4j 9 26 7
As % of all contract IT jobs advertised in England 0.021% 0.053% 0.014%
As % of the Development Applications category 0.12% 0.34% 0.10%
Number of daily rates quoted 5 21 1
Median daily rate £513 £375 £545
Median daily rate % change year-on-year +36.66% -31.19%  
90% offered a daily rate of more than £453 £233 £523
10% offered a daily rate of more than £556 £425 £568
UK excluding London median daily rate - £375 -
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Log4j is in the development application skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in England with a requirement for development application skills.

Contract Development Application Skills
England
Contract job vacancies with a requirement for development application skills 7667 7740 6768
As % of all contract IT job vacancies advertised in England 17.74% 15.65% 13.48%
Number of daily rates quoted 12692 13122 9813
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 £313 £306 £275
10% offered a daily rate of more than £594 £575 £573
UK excluding London median daily rate £413 £400 £363
% change year-on-year +3.12% +10.34%  
Number of hourly rates quoted 271 189 161
Median hourly rate £42.50 £42.00 £37.45
Median hourly rate % change year-on-year +1.19% +12.14%  
90% offered a hourly rate of more than £31.50 £25.00 £20.77
10% offered a hourly rate of more than £63.75 £50.87 £47.50
UK excluding London median hourly rate £43.25 £42.00 £37.04
% change year-on-year +2.97% +13.39%  

Log4j
Job Vacancy Trend in England

Job postings citing Log4j as a percentage of all IT jobs advertised in England.

Job vacancy trend for Log4j in England

Log4j
Contractor Daily Rate Trend in England

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Log4j in England.

Contractor daily rate trend for Log4j in England

Log4j
Contractor Hourly Rate Trend in England

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Log4j in England.

Contractor hourly rate trend for Log4j in England

Log4j
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Log4j within the England region over the 3 months to 28 June 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
London +17 7 £513 -12.76% 1
East of England - 2 - -
Log4j
UK

For the 6 months to 28 June 2017, IT contractor jobs citing Log4j 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 England region with a requirement for Log4j.

1 17 (100.00%) Java
1 17 (100.00%) Web Services
2 16 (94.12%) Linux
2 16 (94.12%) Apache
3 10 (58.82%) Tomcat
3 10 (58.82%) JMS
3 10 (58.82%) XML
3 10 (58.82%) JSP
3 10 (58.82%) SQL
3 10 (58.82%) TDD
4 9 (52.94%) Agile Software Development
4 9 (52.94%) Subversion
4 9 (52.94%) J2EE
4 9 (52.94%) MySQL
4 9 (52.94%) JDBC
4 9 (52.94%) E-Commerce
4 9 (52.94%) XSLT
4 9 (52.94%) Git (software)
5 8 (47.06%) JBoss
5 8 (47.06%) HTML
5 8 (47.06%) WebLogic
5 8 (47.06%) Oracle
5 8 (47.06%) SQL Server
5 8 (47.06%) WebSphere
6 7 (41.18%) Ajax
6 7 (41.18%) JIRA
6 7 (41.18%) HTTP
6 7 (41.18%) Nagios
6 7 (41.18%) Quality Management
6 7 (41.18%) ATG

Log4j
Co-occurring IT Skills in England 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 16 (94.12%) Apache
2 10 (58.82%) Tomcat
3 8 (47.06%) JBoss
3 8 (47.06%) WebLogic
3 8 (47.06%) WebSphere
4 7 (41.18%) ATG Dynamo
5 2 (11.76%) MQSeries
6 1 (5.88%) WebLogic Portal
Cloud Services
1 4 (23.53%) Amazon AWS
Communications & Networking
1 7 (41.18%) HTTP
1 7 (41.18%) LDAP
2 2 (11.76%) Internet
Database & Business Intelligence
1 9 (52.94%) MySQL
2 8 (47.06%) SQL Server
3 7 (41.18%) Apache Cassandra
3 7 (41.18%) Oracle Database
4 4 (23.53%) MongoDB
5 1 (5.88%) DB2
Development Applications
1 9 (52.94%) Git (software)
1 9 (52.94%) Subversion
2 7 (41.18%) Ant
2 7 (41.18%) Atlassian Bamboo
2 7 (41.18%) Bitbucket
2 7 (41.18%) Fiddler
2 7 (41.18%) Jenkins
2 7 (41.18%) JIRA
2 7 (41.18%) JMeter
2 7 (41.18%) YourKit
3 6 (35.29%) Gatling
3 6 (35.29%) Hudson
3 6 (35.29%) LoadRunner
3 6 (35.29%) LoadUI
4 3 (17.65%) WebPagetest
5 2 (11.76%) Eclipse
5 2 (11.76%) JUnit
5 2 (11.76%) Maven
5 2 (11.76%) Mockito
5 2 (11.76%) Talend Open Studio
General
1 2 (11.76%) Games
2 1 (5.88%) Back Office
2 1 (5.88%) Banking
2 1 (5.88%) Finance
Job Titles
1 7 (41.18%) Developer
2 5 (29.41%) Performance Engineer
3 3 (17.65%) Senior Developer
4 2 (11.76%) DevOps Engineer
4 2 (11.76%) Java Engineer
4 2 (11.76%) QA Engineer
4 2 (11.76%) Technical Leader
5 1 (5.88%) Consultant
5 1 (5.88%) Performance Test Engineer
5 1 (5.88%) Senior Performance Engineer
5 1 (5.88%) Technical Consultant
5 1 (5.88%) Test Engineer
Libraries, Frameworks & Software Standards
1 17 (100.00%) Web Services
2 10 (58.82%) JMS
2 10 (58.82%) JSP
2 10 (58.82%) XML
3 9 (52.94%) J2EE
3 9 (52.94%) JDBC
3 9 (52.94%) XSLT
4 8 (47.06%) HTML
5 7 (41.18%) Ajax
5 7 (41.18%) ODBC
5 7 (41.18%) Servlets
6 2 (11.76%) ActiveMQ
6 2 (11.76%) Apache Camel
6 2 (11.76%) JSON
6 2 (11.76%) REST
6 2 (11.76%) SOAP
6 2 (11.76%) Spring
6 2 (11.76%) Spring Boot
6 2 (11.76%) Spring Security
6 2 (11.76%) XSD
Miscellaneous
1 7 (41.18%) Client/Server
2 1 (5.88%) Computer Science
Operating Systems
1 16 (94.12%) Linux
2 7 (41.18%) Windows
3 2 (11.76%) HPUX
3 2 (11.76%) Solaris
3 2 (11.76%) Unix
Processes & Methodologies
1 10 (58.82%) TDD
2 9 (52.94%) Agile Software Development
2 9 (52.94%) E-Commerce
3 7 (41.18%) ATDD
3 7 (41.18%) BDD
3 7 (41.18%) Continuous Delivery
3 7 (41.18%) Continuous Integration
3 7 (41.18%) Defect Management
3 7 (41.18%) Feature Driven Development
3 7 (41.18%) Performance Monitoring
3 7 (41.18%) Performance Tuning
3 7 (41.18%) Personalization
3 7 (41.18%) Quality Management
4 6 (35.29%) Performance Testing
5 4 (23.53%) Performance Engineering
6 2 (11.76%) Dependency Management
6 2 (11.76%) DevOps
6 2 (11.76%) ETL
6 2 (11.76%) RAD
7 1 (5.88%) Web Development
Programming Languages
1 17 (100.00%) Java
2 10 (58.82%) SQL
3 7 (41.18%) Bash Shell
3 7 (41.18%) JavaScript
4 3 (17.65%) Groovy
4 3 (17.65%) Scala
Qualifications
1 1 (5.88%) Computer Science Degree
1 1 (5.88%) Degree
Quality Assurance & Compliance
1 6 (35.29%) QA
Systems Management
1 7 (41.18%) Grafana
1 7 (41.18%) Graphite
1 7 (41.18%) HP SiteScope
1 7 (41.18%) Nagios
1 7 (41.18%) ZABBIX
Vendors
1 8 (47.06%) Oracle
2 7 (41.18%) ATG
2 7 (41.18%) Dynatrace
2 7 (41.18%) HP
3 3 (17.65%) IBM
3 3 (17.65%) SOASTA, Inc
4 2 (11.76%) Talend
5 1 (5.88%) Misys