The following table provides summary statistics for permanent job vacancies with a requirement for Log4j skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Log4j over the 3 months to 22 June 2017 with a comparison to the same period in the previous 2 years.

Apache Log4j
UK
3 months to
22 Jun 2017
Same period 2016 Same period 2015
Rank 870 906 970
Rank change year-on-year +36 +64  
Permanent jobs citing Log4j 4 41 18
As % of all permanent IT jobs advertised in the UK 0.005% 0.042% 0.016%
As % of the Development Applications category 0.021% 0.23% 0.096%
Number of salaries quoted 3 26 9
Median salary £40,000 £42,500 £37,500
Median salary % change year-on-year -5.88% +13.33%  
UK excluding London median salary £40,000 £50,000 £39,250
% change year-on-year -20.00% +27.38%  

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

Development Application Skills
UK
Permanent job vacancies with a requirement for development application skills 18627 17887 18702
As % of all permanent IT job vacancies advertised in the UK 20.97% 18.14% 16.86%
Number of salaries quoted 15360 15504 15675
Median salary £50,000 £50,000 £47,000
Median salary % change year-on-year - +6.38%  
90% offered a salary of more than £35,000 £33,500 £32,500
10% offered a salary of more than £72,500 £65,000 £70,000
UK excluding London median salary £45,000 £42,500 £42,000
% change year-on-year +5.88% +1.19%  

Log4j
Job Vacancy Trend

The job posting trend of jobs advertised citing Log4j as a proportion of all permanent or contract IT jobs with a match in the Development Applications category.

Job vacancy trend for Log4j in the UK

Log4j
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Log4j.

Salary trend for Log4j in the UK

Log4j
Top 6 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Log4j within the UK over the 3 months to 22 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
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +15 4 £40,000 -5.88% 2
East of England 0 3 £40,000 -23.80%
Cambridge - 3 £40,000 -
Cambridgeshire - 3 £40,000 -
London +2 1 - - 1
Feltham - 1 - -

For the 6 months to 22 June 2017, IT jobs citing Log4j also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for Log4j.

1 10 (100.00%) Java
2 8 (80.00%) SQL
3 7 (70.00%) Oracle
3 7 (70.00%) Tomcat
4 6 (60.00%) Eclipse
4 6 (60.00%) HTML
4 6 (60.00%) JavaScript
4 6 (60.00%) Degree
4 6 (60.00%) SDLC
5 5 (50.00%) Software Engineering
5 5 (50.00%) CSS
6 4 (40.00%) Web Services
6 4 (40.00%) Ajax
6 4 (40.00%) Continuous Integration
7 3 (30.00%) Jetty
7 3 (30.00%) Test Automation
7 3 (30.00%) RESTful
7 3 (30.00%) Mercurial
7 3 (30.00%) jQuery
7 3 (30.00%) Life Science
7 3 (30.00%) QA
7 3 (30.00%) Selenium
7 3 (30.00%) Hadoop
7 3 (30.00%) MyEclipse
7 3 (30.00%) Mockito
7 3 (30.00%) Natural Language Processing
7 3 (30.00%) MediaWiki
7 3 (30.00%) Ansible
7 3 (30.00%) KNIME
7 3 (30.00%) Full Text Search

Log4j
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 7 (70.00%) Tomcat
2 3 (30.00%) Jetty
2 3 (30.00%) MediaWiki
2 3 (30.00%) OpenStack
2 3 (30.00%) WebLogic
3 2 (20.00%) Apache
Cloud Services
1 1 (10.00%) Amazon AWS
Communications & Networking
1 1 (10.00%) HTTP
1 1 (10.00%) LDAP
Database & Business Intelligence
1 3 (30.00%) Hadoop
1 3 (30.00%) KNIME
1 3 (30.00%) PostgreSQL
2 2 (20.00%) MySQL
3 1 (10.00%) Apache Cassandra
3 1 (10.00%) Big Data
3 1 (10.00%) MongoDB
3 1 (10.00%) Oracle Database
3 1 (10.00%) Oracle Database 11g
3 1 (10.00%) SQL Server
Development Applications
1 6 (60.00%) Eclipse
2 3 (30.00%) Ant
2 3 (30.00%) Bugzilla
2 3 (30.00%) Buildbot
2 3 (30.00%) FindBugs
2 3 (30.00%) JUnit
2 3 (30.00%) Maven
2 3 (30.00%) Mercurial
2 3 (30.00%) Mockito
2 3 (30.00%) MyEclipse
2 3 (30.00%) SCons
2 3 (30.00%) Selenium
3 2 (20.00%) Selenium IDE
3 2 (20.00%) SoapUI
4 1 (10.00%) Bitbucket
4 1 (10.00%) Hudson
4 1 (10.00%) Jenkins
4 1 (10.00%) JIRA
4 1 (10.00%) LoadUI
4 1 (10.00%) YourKit
Job Titles
1 6 (60.00%) Developer
1 6 (60.00%) Java Developer
2 3 (30.00%) Senior Developer
2 3 (30.00%) Senior Java Developer
3 2 (20.00%) HTML CSS Developer
3 2 (20.00%) HTML Developer
3 2 (20.00%) JavaScript Developer
3 2 (20.00%) QA Engineer
3 2 (20.00%) SQL Developer
3 2 (20.00%) Test Engineer
4 1 (10.00%) Analyst
4 1 (10.00%) Applications Support
4 1 (10.00%) Applications Support Engineer
4 1 (10.00%) QA Analyst
4 1 (10.00%) QA Test Analyst
4 1 (10.00%) QA Test Engineer
4 1 (10.00%) Senior Applications Support
4 1 (10.00%) Senior Support Engineer
4 1 (10.00%) Support Engineer
4 1 (10.00%) Test Analyst
Libraries, Frameworks & Software Standards
1 6 (60.00%) HTML
2 5 (50.00%) CSS
3 4 (40.00%) Ajax
3 4 (40.00%) Web Services
4 3 (30.00%) AWT
4 3 (30.00%) Hibernate
4 3 (30.00%) J2EE
4 3 (30.00%) J2SE
4 3 (30.00%) JAAS
4 3 (30.00%) JavaBeans
4 3 (30.00%) JDBC
4 3 (30.00%) jQuery
4 3 (30.00%) JSF
4 3 (30.00%) JSP
4 3 (30.00%) RESTful
4 3 (30.00%) Servlets
4 3 (30.00%) Struts
4 3 (30.00%) Swing
4 3 (30.00%) SWT
4 3 (30.00%) XML
Miscellaneous
1 3 (30.00%) Grid Computing
1 3 (30.00%) Life Science
2 1 (10.00%) Client/Server
2 1 (10.00%) Computer Science
Operating Systems
1 3 (30.00%) Windows
2 2 (20.00%) Linux
3 1 (10.00%) Unix
Processes & Methodologies
1 6 (60.00%) SDLC
2 5 (50.00%) Software Engineering
3 4 (40.00%) Continuous Integration
4 3 (30.00%) Agile Software Development
4 3 (30.00%) Document Management
4 3 (30.00%) Full Text Search
4 3 (30.00%) MVC
4 3 (30.00%) Test Automation
4 3 (30.00%) Validation
5 2 (20.00%) Analytics
5 2 (20.00%) Open Source
5 2 (20.00%) Process Improvement
5 2 (20.00%) Software Testing
5 2 (20.00%) Test Scripting
6 1 (10.00%) ATDD
6 1 (10.00%) Capacity Management
6 1 (10.00%) Continuous Delivery
6 1 (10.00%) Defect Management
6 1 (10.00%) Line Management
6 1 (10.00%) Performance Tuning
Programming Languages
1 10 (100.00%) Java
2 8 (80.00%) SQL
3 6 (60.00%) JavaScript
4 2 (20.00%) Bash Shell
5 1 (10.00%) C-shell
5 1 (10.00%) Groovy
5 1 (10.00%) Perl
5 1 (10.00%) PHP
5 1 (10.00%) Python
5 1 (10.00%) Scala
Qualifications
1 6 (60.00%) Degree
2 3 (30.00%) Postgraduate
3 1 (10.00%) Computer Science Degree
Quality Assurance & Compliance
1 3 (30.00%) QA
Systems Management
1 3 (30.00%) Ansible
2 2 (20.00%) Nagios
3 1 (10.00%) Grafana
3 1 (10.00%) Graphite
3 1 (10.00%) HP SiteScope
3 1 (10.00%) ZABBIX
Vendors
1 7 (70.00%) Oracle
2 1 (10.00%) Dynatrace
2 1 (10.00%) HP
2 1 (10.00%) New Relic
2 1 (10.00%) SOASTA, Inc
Oxfordshire
Computer Futures
Salary: £50000 - £80000 per annum + competitive
Posted: Yesterday
London
Computer Futures
Salary: £40000 - £70000 per annum + competitive
Posted: 4 days ago
Edinburgh & Lothians
Cognizant
Posted: 8 days ago