The table below looks at the statistics for Log4j skills in IT jobs advertised for the London region. Included is a guide to the salaries offered in IT jobs that have cited Log4j over the 3 months to 18 January 2017 with a comparison to the same period over the previous 2 years.

3 months to
18 Jan 2017
Same period 2016 Same period 2015
Apache Log4j
England / London
Rank 584 642 613
Rank change year-on-year
+58 -29
Permanent jobs citing Log4j 4 6 21
As % of all permanent IT jobs located in London 0.012% 0.015% 0.052%
As % of the Development Applications category 0.061% 0.082% 0.32%
Number of salaries quoted 3 4 21
Median salary £110,000 £37,500 £57,500
Median salary % change year-on-year
+193.33% -34.78%
UK excluding London median salary £53,750 £60,000 £42,500
% change year-on-year
-10.41% +41.17%

The following table is for comparison with the above and provides statistics for the entire Development Applications category in permanent jobs advertised in the London region.

Development Applications Category
London
Permanent IT job ads with a match in the
Development Applications category
6576 7327 6520
As % of all permanent IT jobs located in London 19.71% 18.01% 16.09%
Number of salaries quoted 5634 6338 5419
Median salary £57,500 £55,000 £55,000
Median salary % change year-on-year
+4.54% -
90% offered a salary of more than £40,000 £40,000 £37,500
10% offered a salary of more than £80,000 £70,000 £77,500
UK excluding London median salary £42,750 £42,500 £40,000
% change year-on-year
+0.58% +6.25%

Log4j
Jobs Demand Trend in London

The demand trend of job ads across the London region citing Log4j as a proportion of all IT jobs with a match in the Development Applications category.

Log4j Jobs Demand Trend in London

Log4j
Salary Trend in London

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

Log4j Salary Trend in London

Log4j
Salary Histogram in London

This chart provides a salary histogram for IT jobs citing Log4j across the London region over the 3 months to 18 January 2017.

Log4j Salary Histogram in London

Log4j
Top 30 Related IT Skills in London

For the 6 months to 18 January 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 across the London region with a requirement for Log4j.

1 13 (100.00%) Java
1 13 (100.00%) SQL Server
2 11 (84.62%) Oracle
2 11 (84.62%) XML
3 10 (76.92%) RDBMS
3 10 (76.92%) Relational Database
4 9 (69.23%) SQL
5 8 (61.54%) Web Services
6 7 (53.85%) Windows
6 7 (53.85%) Linux
6 7 (53.85%) ODBC
6 7 (53.85%) HTML
6 7 (53.85%) IBM
6 7 (53.85%) JMS
6 7 (53.85%) Tomcat
6 7 (53.85%) Finance
7 6 (46.15%) Migration
7 6 (46.15%) Front Office
7 6 (46.15%) Risk Management
7 6 (46.15%) Banking
7 6 (46.15%) Subversion
7 6 (46.15%) Maven
7 6 (46.15%) Ajax
7 6 (46.15%) MDX
7 6 (46.15%) Apache Axis
7 6 (46.15%) Oracle Database 11g
7 6 (46.15%) Credit Risk
7 6 (46.15%) Red Hat Enterprise Linux
7 6 (46.15%) Data Warehouse
7 6 (46.15%) Client/Server

Log4j
Top Related IT Skills in 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 7 (53.85%) Tomcat
2 5 (38.46%) Apache
3 4 (30.77%) Adobe Experience Manager
4 1 (7.69%) JBoss
4 1 (7.69%) WebLogic
4 1 (7.69%) WebLogic Portal
4 1 (7.69%) WebSphere
Applications
1 5 (38.46%) MS Excel
1 5 (38.46%) MS Office
Communications & Networking
1 4 (30.77%) SMTP
2 2 (15.38%) HTTP
2 2 (15.38%) LDAP
Database & Business Intelligence
1 13 (100.00%) SQL Server
2 10 (76.92%) RDBMS
2 10 (76.92%) Relational Database
3 6 (46.15%) Data Warehouse
3 6 (46.15%) Hazelcast
3 6 (46.15%) MySQL
3 6 (46.15%) Oracle Database
3 6 (46.15%) Oracle Database 10g
3 6 (46.15%) Oracle Database 11g
3 6 (46.15%) SSDT
4 3 (23.08%) Jackrabbit
5 2 (15.38%) Apache Cassandra
6 1 (7.69%) DB2
6 1 (7.69%) MongoDB
Development Applications
1 6 (46.15%) Maven
1 6 (46.15%) Subversion
2 5 (38.46%) Eclipse
3 4 (30.77%) JUnit
4 2 (15.38%) Fiddler
4 2 (15.38%) Gatling
4 2 (15.38%) JMeter
4 2 (15.38%) LoadRunner
4 2 (15.38%) LoadUI
4 2 (15.38%) YourKit
5 1 (7.69%) Atlassian Bamboo
5 1 (7.69%) Git (software)
5 1 (7.69%) Hudson
5 1 (7.69%) Jenkins
5 1 (7.69%) JIRA
General
1 7 (53.85%) Finance
2 6 (46.15%) Banking
2 6 (46.15%) Front Office
3 5 (38.46%) Investment Banking
4 3 (23.08%) Publishing
Job Titles
1 4 (30.77%) Development Manager
1 4 (30.77%) Java Development Manager
1 4 (30.77%) Java Programmer
1 4 (30.77%) Oracle Development Manager
1 4 (30.77%) Programmer
1 4 (30.77%) Risk Manager
2 3 (23.08%) Technical Development Manager
2 3 (23.08%) Technical Leader
2 3 (23.08%) Technical Manager
3 2 (15.38%) Developer
3 2 (15.38%) Java Developer
3 2 (15.38%) Performance Engineer
3 2 (15.38%) Senior Developer
3 2 (15.38%) Senior Java Developer
4 1 (7.69%) Consultant
4 1 (7.69%) Development Team Manager
4 1 (7.69%) Lead Developer
4 1 (7.69%) Performance Tester
4 1 (7.69%) Technical Consultant
4 1 (7.69%) Tester
Libraries, Frameworks & Software Standards
1 11 (84.62%) XML
2 8 (61.54%) Web Services
3 7 (53.85%) HTML
3 7 (53.85%) JMS
3 7 (53.85%) ODBC
4 6 (46.15%) Ajax
4 6 (46.15%) Apache Axis
4 6 (46.15%) Gson
4 6 (46.15%) JDBC
4 6 (46.15%) MDX
4 6 (46.15%) MyBatis
4 6 (46.15%) XSLT
5 5 (38.46%) .NET
5 5 (38.46%) CSS
5 5 (38.46%) JSP
6 4 (30.77%) DOM
6 4 (30.77%) J2EE
6 4 (30.77%) JPA
6 4 (30.77%) Servlets
6 4 (30.77%) XSL
Miscellaneous
1 6 (46.15%) Client/Server
1 6 (46.15%) Credit Risk
2 5 (38.46%) Analytical Skills
2 5 (38.46%) Computer Science
2 5 (38.46%) OTC Derivatives
3 1 (7.69%) Mobile App
3 1 (7.69%) New Media
3 1 (7.69%) Tandem
Operating Systems
1 7 (53.85%) Linux
1 7 (53.85%) Windows
2 6 (46.15%) Red Hat Enterprise Linux
2 6 (46.15%) Unix
3 3 (23.08%) Android
3 3 (23.08%) Apple iOS
Processes & Methodologies
1 6 (46.15%) ETL
1 6 (46.15%) Migration
1 6 (46.15%) Risk Management
2 4 (30.77%) UML
2 4 (30.77%) Use Case
2 4 (30.77%) Web Development
3 3 (23.08%) Android Development
3 3 (23.08%) iOS Development
3 3 (23.08%) TDD
4 2 (15.38%) Agile Software Development
4 2 (15.38%) ATDD
4 2 (15.38%) BDD
4 2 (15.38%) E-Commerce
4 2 (15.38%) Feature Driven Development
4 2 (15.38%) Performance Engineering
4 2 (15.38%) Performance Monitoring
4 2 (15.38%) Performance Testing
4 2 (15.38%) Performance Tuning
5 1 (7.69%) Stress Testing
5 1 (7.69%) Test Scripting
Programming Languages
1 13 (100.00%) Java
2 9 (69.23%) SQL
3 6 (46.15%) ANSI SQL
3 6 (46.15%) Data Analysis Expressions (DAX)
3 6 (46.15%) Perl
3 6 (46.15%) PL/SQL
4 5 (38.46%) VBA
5 4 (30.77%) ECMAScript
5 4 (30.77%) JavaScript
6 2 (15.38%) Groovy
6 2 (15.38%) Scala
Qualifications
1 5 (38.46%) Degree
Quality Assurance & Compliance
1 1 (7.69%) QA
Systems Management
1 6 (46.15%) Control-M
2 1 (7.69%) Grafana
2 1 (7.69%) Graphite
2 1 (7.69%) HP SiteScope
2 1 (7.69%) Nagios
Vendors
1 11 (84.62%) Oracle
2 7 (53.85%) IBM
3 6 (46.15%) Informatica
3 6 (46.15%) Red Hat
3 6 (46.15%) Sybase
4 4 (30.77%) Adobe
5 2 (15.38%) Dynatrace
6 1 (7.69%) Cognizant
6 1 (7.69%) Misys