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 4 December 2016 with a comparison to the same period over the previous 2 years.

3 months to
4 Dec 2016
Same period 2015 Same period 2014
Apache Log4j
Rank 574 659 667
Rank change year-on-year
+85 +8
Permanent jobs citing Log4j 7 4 13
As % of all permanent IT jobs located in London 0.020% 0.009% 0.029%
As % of the Development Applications category 0.10% 0.051% 0.18%
Number of salaries quoted 7 3 13
Median salary £59,000 £37,500 £57,500
Median salary % change year-on-year
+57.33% -34.78%
90% offered a salary of more than £50,000 £37,500 £35,000
10% offered a salary of more than £114,000 £37,500 £59,500
UK excluding London median salary £52,500 £60,000 £42,500
% change year-on-year
-12.50% +41.17%
Log4j
England

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
6878 7909 7295
As % of all permanent IT jobs located in London 19.58% 18.07% 16.06%
Number of salaries quoted 5918 6738 6151
Median salary £57,500 £55,000 £52,500
Median salary % change year-on-year
+4.54% +4.76%
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 £43,000 £42,500 £40,000
% change year-on-year
+1.17% +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 4 December 2016.

Log4j Salary Histogram in London

Log4j
Top 30 Related IT Skills in London

For the 6 months to 4 December 2016, 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 23 (100.00%) Java
2 19 (82.61%) SQL Server
3 16 (69.57%) Tomcat
4 15 (65.22%) Web Services
4 15 (65.22%) Oracle
5 14 (60.87%) XML
6 13 (56.52%) HTML
7 12 (52.17%) SQL
8 11 (47.83%) JUnit
8 11 (47.83%) RDBMS
8 11 (47.83%) Relational Database
9 10 (43.48%) Linux
9 10 (43.48%) CSS
9 10 (43.48%) JSP
9 10 (43.48%) Ajax
10 9 (39.13%) J2EE
10 9 (39.13%) Apache
10 9 (39.13%) JMS
10 9 (39.13%) IBM
11 8 (34.78%) MySQL
11 8 (34.78%) Perl
11 8 (34.78%) ODBC
11 8 (34.78%) Windows
11 8 (34.78%) Maven
11 8 (34.78%) Client/Server
11 8 (34.78%) Subversion
12 7 (30.43%) Agile Software Development
12 7 (30.43%) Hibernate
12 7 (30.43%) JavaScript
12 7 (30.43%) Scala

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 16 (69.57%) Tomcat
2 9 (39.13%) Apache
3 5 (21.74%) Adobe Experience Manager
4 4 (17.39%) Jetty
5 3 (13.04%) JBoss
5 3 (13.04%) WebLogic
5 3 (13.04%) WebLogic Portal
5 3 (13.04%) WebSphere
6 2 (8.70%) WordPress
Applications
1 5 (21.74%) MS Excel
1 5 (21.74%) MS Office
Communications & Networking
1 5 (21.74%) SMTP
2 3 (13.04%) HTTP
2 3 (13.04%) LDAP
Database & Business Intelligence
1 19 (82.61%) SQL Server
2 11 (47.83%) RDBMS
2 11 (47.83%) Relational Database
3 8 (34.78%) MySQL
4 6 (26.09%) Data Warehouse
4 6 (26.09%) Hazelcast
4 6 (26.09%) Oracle Database
4 6 (26.09%) Oracle Database 10g
4 6 (26.09%) Oracle Database 11g
4 6 (26.09%) SSDT
5 4 (17.39%) Big Data
5 4 (17.39%) MarkLogic
5 4 (17.39%) NoSQL
5 4 (17.39%) Triplestore
6 3 (13.04%) Apache Cassandra
6 3 (13.04%) DB2
6 3 (13.04%) Jackrabbit
7 2 (8.70%) MongoDB
7 2 (8.70%) PostgreSQL
Development Applications
1 11 (47.83%) JUnit
2 8 (34.78%) Maven
2 8 (34.78%) Subversion
3 5 (21.74%) Eclipse
3 5 (21.74%) JIRA
4 4 (17.39%) Git (software)
4 4 (17.39%) Jenkins
4 4 (17.39%) Mockito
5 3 (13.04%) Fiddler
5 3 (13.04%) Gatling
5 3 (13.04%) JMeter
5 3 (13.04%) LoadRunner
5 3 (13.04%) LoadUI
5 3 (13.04%) YourKit
6 2 (8.70%) Atlassian Bamboo
6 2 (8.70%) Bitbucket
6 2 (8.70%) Gradle
6 2 (8.70%) Hudson
6 2 (8.70%) Selenium
6 2 (8.70%) TestNG
General
1 6 (26.09%) Finance
1 6 (26.09%) Front Office
2 5 (21.74%) Banking
2 5 (21.74%) Investment Banking
3 3 (13.04%) Publishing
Job Titles
1 5 (21.74%) Developer
2 4 (17.39%) Development Manager
2 4 (17.39%) Head of Engineering
2 4 (17.39%) Java Developer
2 4 (17.39%) Java Development Manager
2 4 (17.39%) Java Programmer
2 4 (17.39%) Oracle Development Manager
2 4 (17.39%) Programmer
2 4 (17.39%) Risk Manager
3 3 (13.04%) Consultant
3 3 (13.04%) Technical Consultant
3 3 (13.04%) Technical Development Manager
3 3 (13.04%) Technical Leader
3 3 (13.04%) Technical Manager
4 2 (8.70%) LoadRunner Performance Tester
4 2 (8.70%) LoadRunner Tester
4 2 (8.70%) Performance Engineer
4 2 (8.70%) Senior Developer
4 2 (8.70%) Senior Java Developer
4 2 (8.70%) Tester
Libraries, Frameworks & Software Standards
1 15 (65.22%) Web Services
2 14 (60.87%) XML
3 13 (56.52%) HTML
4 10 (43.48%) Ajax
4 10 (43.48%) CSS
4 10 (43.48%) JSP
5 9 (39.13%) J2EE
5 9 (39.13%) JMS
6 8 (34.78%) ODBC
7 7 (30.43%) Hibernate
8 6 (26.09%) Apache Axis
8 6 (26.09%) Gson
8 6 (26.09%) JDBC
8 6 (26.09%) MDX
8 6 (26.09%) MyBatis
8 6 (26.09%) XSLT
9 5 (21.74%) .NET
9 5 (21.74%) Apache Commons
9 5 (21.74%) RFC 2045
9 5 (21.74%) RFC 2821
Miscellaneous
1 8 (34.78%) Client/Server
2 6 (26.09%) Credit Risk
3 5 (21.74%) Analytical Skills
3 5 (21.74%) Computer Science
3 5 (21.74%) OTC Derivatives
4 1 (4.35%) Mathematics
4 1 (4.35%) Mobile App
4 1 (4.35%) New Media
4 1 (4.35%) Tandem
Operating Systems
1 10 (43.48%) Linux
2 8 (34.78%) Windows
3 6 (26.09%) Red Hat Enterprise Linux
3 6 (26.09%) Unix
4 5 (21.74%) Android
5 3 (13.04%) Apple iOS
6 2 (8.70%) openSUSE
6 2 (8.70%) Ubuntu
Processes & Methodologies
1 7 (30.43%) Agile Software Development
2 6 (26.09%) Continuous Delivery
2 6 (26.09%) ETL
2 6 (26.09%) Migration
2 6 (26.09%) Risk Management
2 6 (26.09%) Web Development
3 5 (21.74%) TDD
3 5 (21.74%) UML
3 5 (21.74%) Use Case
4 4 (17.39%) Machine Learning
4 4 (17.39%) RDF
5 3 (13.04%) Android Development
5 3 (13.04%) ATDD
5 3 (13.04%) BDD
5 3 (13.04%) E-Commerce
5 3 (13.04%) Feature Driven Development
5 3 (13.04%) iOS Development
5 3 (13.04%) Performance Monitoring
5 3 (13.04%) Performance Testing
5 3 (13.04%) Performance Tuning
Programming Languages
1 23 (100.00%) Java
2 12 (52.17%) SQL
3 8 (34.78%) Perl
4 7 (30.43%) JavaScript
4 7 (30.43%) Scala
5 6 (26.09%) ANSI SQL
5 6 (26.09%) Data Analysis Expressions (DAX)
5 6 (26.09%) PL/SQL
6 5 (21.74%) ECMAScript
6 5 (21.74%) VBA
7 4 (17.39%) SPARQL
8 3 (13.04%) Groovy
9 2 (8.70%) PHP
Qualifications
1 5 (21.74%) Degree
Quality Assurance & Compliance
1 2 (8.70%) QA
System Software
1 2 (8.70%) Docker
Systems Management
1 6 (26.09%) Control-M
2 2 (8.70%) Grafana
2 2 (8.70%) Graphite
2 2 (8.70%) HP SiteScope
2 2 (8.70%) Nagios
2 2 (8.70%) Opscode Chef
2 2 (8.70%) Puppet
2 2 (8.70%) Salt
Vendors
1 15 (65.22%) Oracle
2 9 (39.13%) IBM
3 6 (26.09%) Informatica
3 6 (26.09%) Red Hat
3 6 (26.09%) Sybase
4 5 (21.74%) Adobe
5 3 (13.04%) Dynatrace
5 3 (13.04%) Misys