Period
to 17 November 2017

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 6 months to 17 November 2017 with a comparison to the same period in the previous 2 years.

Apache Log4j
UK
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 1185 1165 1255
Rank change year-on-year -20 +90 +11
Permanent jobs citing Log4j 18 59 37
As % of all permanent IT jobs advertised in the UK 0.010% 0.031% 0.017%
As % of the Development Applications category 0.049% 0.17% 0.096%
Number of salaries quoted 3 40 11
UK median annual salary £40,000 £52,500 £55,000
Median salary % change year-on-year -23.81% -4.55% +15.79%
10th Percentile £37,500 £37,500 £23,750
90th Percentile £46,500 £115,000 £71,250
UK excluding London median annual salary £40,000 £52,500 £60,000
% change year-on-year -23.81% -12.50% +41.18%

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

All Development Application Skills
UK
Permanent vacancies with a requirement for development application skills 36660 35554 38429
As % of all permanent IT jobs advertised in the UK 20.35% 18.70% 17.52%
Number of salaries quoted 29788 30681 32460
UK median annual salary £50,000 £47,500 £45,000
Median salary % change year-on-year +5.26% +5.56% -
10th Percentile £31,250 £30,000 £30,000
90th Percentile £75,000 £73,750 £70,000
UK excluding London median annual salary £45,000 £42,500 £40,000
% change year-on-year +5.88% +6.25% -

Log4j
Job Vacancy Trend

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

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 5 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 6 months to 17 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
UK excluding London +32 18 £40,000 -23.81%
England +11 9 £40,000 -23.81%
Scotland - 9 - -
East of England +6 6 £40,000 -23.44%
South East +41 3 - -

For the 6 months to 17 November 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 18 (100.00%) Java
1 18 (100.00%) SQL
2 17 (94.44%) HTML
3 12 (66.67%) Oracle
3 12 (66.67%) Web Services
3 12 (66.67%) XML
4 11 (61.11%) JavaScript
4 11 (61.11%) CSS
5 9 (50.00%) DB2
5 9 (50.00%) JUnit
5 9 (50.00%) JSP
5 9 (50.00%) Finance
5 9 (50.00%) JMS
5 9 (50.00%) Eclipse
5 9 (50.00%) IBM
5 9 (50.00%) TDD
5 9 (50.00%) Banking
5 9 (50.00%) WebSphere
5 9 (50.00%) REST
6 6 (33.33%) Git (software)
6 6 (33.33%) Bash Shell
6 6 (33.33%) Mockito
6 6 (33.33%) Cucumber
6 6 (33.33%) Web Development
6 6 (33.33%) Asset Management
6 6 (33.33%) Spring
6 6 (33.33%) Maven
6 6 (33.33%) Hibernate
6 6 (33.33%) Misys
6 6 (33.33%) Data Modelling

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 9 (50.00%) WebSphere
2 6 (33.33%) JBoss
2 6 (33.33%) Tomcat
2 6 (33.33%) WebLogic
2 6 (33.33%) WebLogic Portal
3 3 (16.67%) Adobe Experience Manager
3 3 (16.67%) Apache
3 3 (16.67%) CMS
3 3 (16.67%) Confluence
3 3 (16.67%) Jetty
3 3 (16.67%) MediaWiki
3 3 (16.67%) MQSeries
3 3 (16.67%) OpenStack
3 3 (16.67%) Oracle SOA Suite
3 3 (16.67%) WebSphere Application Server
Applications
1 3 (16.67%) Pipeline Pilot
Business Applications
1 2 (11.11%) Magento
Cloud Services
1 3 (16.67%) npm
1 3 (16.67%) OpenShift
Communications & Networking
1 3 (16.67%) Internet
Database & Business Intelligence
1 9 (50.00%) DB2
2 6 (33.33%) SQL Server
3 3 (16.67%) Big Data
3 3 (16.67%) Hadoop
3 3 (16.67%) Jackrabbit
3 3 (16.67%) KNIME
3 3 (16.67%) NoSQL
3 3 (16.67%) Oracle Database
3 3 (16.67%) PostgreSQL
3 3 (16.67%) RDBMS
3 3 (16.67%) Relational Database
Development Applications
1 9 (50.00%) Eclipse
1 9 (50.00%) JUnit
2 6 (33.33%) Cucumber
2 6 (33.33%) Git (software)
2 6 (33.33%) Maven
2 6 (33.33%) Mockito
3 3 (16.67%) Ant
3 3 (16.67%) Artifactory
3 3 (16.67%) Bugzilla
3 3 (16.67%) FindBugs
3 3 (16.67%) IntelliJ
3 3 (16.67%) Jenkins
3 3 (16.67%) JIRA
3 3 (16.67%) Mercurial
3 3 (16.67%) SCons
3 3 (16.67%) Selenium
3 3 (16.67%) Sonatype Nexus
3 3 (16.67%) Subversion
3 3 (16.67%) TeamCity
3 3 (16.67%) WebSphere Studio Application Developer
General
1 9 (50.00%) Banking
1 9 (50.00%) Finance
2 5 (27.78%) Financial Institution
2 5 (27.78%) Investment Banking
3 3 (16.67%) Retail Banking
4 1 (5.56%) Games
Job Titles
1 9 (50.00%) Consultant
1 9 (50.00%) Developer
1 9 (50.00%) Java Developer
2 6 (33.33%) Product Consultant
3 3 (16.67%) DevOps Consultant
3 3 (16.67%) Senior Consultant
3 3 (16.67%) Senior Developer
3 3 (16.67%) Senior DevOps
3 3 (16.67%) Senior DevOps Consultant
3 3 (16.67%) Senior Java Developer
4 2 (11.11%) HTML CSS Developer
4 2 (11.11%) HTML Developer
4 2 (11.11%) JavaScript Developer
4 2 (11.11%) SQL Developer
Libraries, Frameworks & Software Standards
1 17 (94.44%) HTML
2 12 (66.67%) Web Services
2 12 (66.67%) XML
3 11 (61.11%) CSS
4 9 (50.00%) JMS
4 9 (50.00%) JSP
4 9 (50.00%) REST
5 6 (33.33%) Hibernate
5 6 (33.33%) JDBC
5 6 (33.33%) Spring
6 3 (16.67%) EJB
6 3 (16.67%) J2EE
6 3 (16.67%) JAAS
6 3 (16.67%) Middleware
6 3 (16.67%) Servlets
6 3 (16.67%) SOAP
6 3 (16.67%) Struts
6 3 (16.67%) XHTML
6 3 (16.67%) XSD
6 3 (16.67%) XSLT
Miscellaneous
1 3 (16.67%) Grid Computing
1 3 (16.67%) Life Science
Operating Systems
1 6 (33.33%) Linux
2 3 (16.67%) HPUX
2 3 (16.67%) Solaris
2 3 (16.67%) Unix
2 3 (16.67%) Windows
Processes & Methodologies
1 9 (50.00%) TDD
2 6 (33.33%) Asset Management
2 6 (33.33%) Data Modelling
2 6 (33.33%) DevOps
2 6 (33.33%) Microservices
2 6 (33.33%) MVC
2 6 (33.33%) Target Operating Model
2 6 (33.33%) Web Development
2 6 (33.33%) Workflow
3 5 (27.78%) Business Transformation
3 5 (27.78%) Wealth Management
4 3 (16.67%) Agile Software Development
4 3 (16.67%) Continuous Integration
4 3 (16.67%) Document Management
4 3 (16.67%) Infrastructure Management
4 3 (16.67%) Inversion of Control
4 3 (16.67%) Open Source
4 3 (16.67%) Pair Programming
4 3 (16.67%) Software Engineering
4 3 (16.67%) Test Automation
Programming Languages
1 18 (100.00%) Java
1 18 (100.00%) SQL
2 11 (61.11%) JavaScript
3 6 (33.33%) Bash Shell
4 3 (16.67%) Perl
4 3 (16.67%) PL/SQL
Qualifications
1 3 (16.67%) Degree
1 3 (16.67%) Postgraduate
System Software
1 3 (16.67%) Docker
Systems Management
1 3 (16.67%) Ansible
Vendors
1 12 (66.67%) Oracle
2 9 (50.00%) IBM
3 6 (33.33%) Misys
4 5 (27.78%) Cognizant
5 3 (16.67%) ATG
5 3 (16.67%) Blue Martini
5 3 (16.67%) Elastic Path
6 2 (11.11%) Demandware
6 2 (11.11%) hybris
7 1 (5.56%) Interwoven