The table below looks at the statistics for Log4j skills in IT jobs advertised for the London region. Included is a guide to the average salaries offered in IT jobs that have cited Log4j over the 3 months to 29 May 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
29 May 2015
Same period 2014 Same period 2013
Apache Log4j
Rank 596 640 628
Rank change year-on-year
+44 -12
Permanent jobs citing Log4j 20 30 4
As % of all permanent IT jobs located in London 0.047% 0.061% 0.009%
As % of the Development Applications category 0.28% 0.35% 0.060%
Number of salaries quoted 13 30 4
Average salary £37,500 £60,000 £52,500
Average salary % change year-on-year
-37.50% +14.28%
UK excluding London average salary £39,250 £45,000 £35,000
% change year-on-year
-12.77% +28.57%
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
7095 8619 6697
As % of all permanent IT jobs located in London 16.56% 17.54% 15.16%
Number of salaries quoted 5930 7293 5752
Average salary £55,000 £52,500 £50,000
Average salary % change year-on-year
+4.76% +5.00%
90% offered a salary of more than £39,000 £37,000 £35,500
10% offered a salary of more than £72,500 £67,500 £70,000
UK excluding London average salary £42,500 £40,000 £38,000
% change year-on-year
+6.25% +5.26%

Log4j
Jobs Demand Trend in London

This chart provides a 3-month moving total of permanent IT jobs citing Log4j across the London region as a proportion of the total demand within 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 29 May 2015.

Log4j Salary Histogram in London

Log4j
Job Locations in London

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing Log4j within the London region over the 3 months to 29 May 2015. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Average Salary
Last 3 Months
Average Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +31 7 £37,500 -55.88%
Uxbridge - 4 - -
Chessington - 2 £35,000 -
Log4j
England

Log4j
Top 30 Related IT Skills in London

For the 6 months to 29 May 2015, IT jobs across the London region citing Log4j also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited Log4j.

1 51 (100.00%) Java
2 50 (98.04%) JavaScript
3 47 (92.16%) JSP
4 39 (76.47%) Servlets
4 39 (76.47%) Web Services
4 39 (76.47%) Oracle
5 37 (72.55%) Apache
6 36 (70.59%) Hibernate
7 35 (68.63%) JUnit
7 35 (68.63%) HTML
7 35 (68.63%) XML
8 33 (64.71%) J2EE
9 32 (62.75%) Tomcat
10 31 (60.78%) CSS
10 31 (60.78%) Linux
11 29 (56.86%) Subversion
11 29 (56.86%) Git (software)
12 28 (54.90%) Agile Software Development
13 27 (52.94%) TDD
13 27 (52.94%) Maven
13 27 (52.94%) jQuery
13 27 (52.94%) Jenkins
14 26 (50.98%) Spring
14 26 (50.98%) Ajax
14 26 (50.98%) SQL Server
15 25 (49.02%) WebSphere
16 23 (45.10%) Use Case
16 23 (45.10%) E-Commerce
17 22 (43.14%) RESTful
18 21 (41.18%) JBoss

Log4j
Top Related IT Skills in London by Category

For the 6 months to 29 May 2015, IT jobs across the London region citing Log4j also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited Log4j. Up to 20 skills are shown per category.

Application Platforms
1 37 (72.55%) Apache
2 32 (62.75%) Tomcat
3 25 (49.02%) WebSphere
4 21 (41.18%) JBoss
5 19 (37.25%) WebLogic
6 12 (23.53%) WordPress
7 11 (21.57%) ATG Dynamo
8 8 (15.69%) Adobe Experience Manager
9 4 (7.84%) WebLogic Portal
9 4 (7.84%) WebSphere Application Server
9 4 (7.84%) Liferay
Communications & Networking
1 8 (15.69%) SMTP
2 4 (7.84%) LDAP
Database & Business Intelligence
1 26 (50.98%) SQL Server
2 18 (35.29%) MySQL
3 14 (27.45%) RDBMS
3 14 (27.45%) Relational Database
4 12 (23.53%) PostgreSQL
5 11 (21.57%) Oracle Database
6 8 (15.69%) Jackrabbit
6 8 (15.69%) MongoDB
6 8 (15.69%) Hadoop
7 4 (7.84%) Couchbase
7 4 (7.84%) Apache Cassandra
7 4 (7.84%) NoSQL
7 4 (7.84%) CouchDB
Development Applications
1 35 (68.63%) JUnit
2 29 (56.86%) Subversion
2 29 (56.86%) Git (software)
3 27 (52.94%) Maven
3 27 (52.94%) Jenkins
4 16 (31.37%) Selenium
5 15 (29.41%) Ant
6 14 (27.45%) TestNG
6 14 (27.45%) JIRA
7 12 (23.53%) Bitbucket
7 12 (23.53%) Gradle
8 11 (21.57%) Eclipse
9 5 (9.80%) IntelliJ
10 4 (7.84%) HttpUnit
10 4 (7.84%) WebSphere Studio Application Developer
10 4 (7.84%) JDeveloper
10 4 (7.84%) Grunt
10 4 (7.84%) JBehave
10 4 (7.84%) Mockito
10 4 (7.84%) Cucumber
General
1 15 (29.41%) Retail
2 8 (15.69%) Publishing
3 2 (3.92%) Billing
Job Titles
1 23 (45.10%) Developer
2 20 (39.22%) Java Developer
3 11 (21.57%) E-Commerce Specialist
4 8 (15.69%) Java Programmer
4 8 (15.69%) Programmer
5 7 (13.73%) Senior Developer
5 7 (13.73%) Senior Java Developer
6 5 (9.80%) Software Engineer
7 4 (7.84%) Java/J2EE Developer
7 4 (7.84%) Senior Java/J2EE Developer
7 4 (7.84%) J2EE Developer
7 4 (7.84%) Cisco Engineer
7 4 (7.84%) Senior J2EE Developer
7 4 (7.84%) Mid-Level Java Developer
8 2 (3.92%) Technical Leader
8 2 (3.92%) Front-End Developer
9 1 (1.96%) J2EE Software Engineer
9 1 (1.96%) Software Developer
Libraries, Frameworks & Software Standards
1 47 (92.16%) JSP
2 39 (76.47%) Servlets
2 39 (76.47%) Web Services
3 36 (70.59%) Hibernate
4 35 (68.63%) HTML
4 35 (68.63%) XML
5 33 (64.71%) J2EE
6 31 (60.78%) CSS
7 27 (52.94%) jQuery
8 26 (50.98%) Spring
8 26 (50.98%) Ajax
9 22 (43.14%) RESTful
10 19 (37.25%) XSLT
11 16 (31.37%) REST
12 15 (29.41%) JDBC
12 15 (29.41%) JMS
13 14 (27.45%) JPA
13 14 (27.45%) Java EE
13 14 (27.45%) JSON
13 14 (27.45%) JSTL
Miscellaneous
1 12 (23.53%) Client/Server
2 7 (13.73%) User Experience
3 6 (11.76%) Computer Science
4 5 (9.80%) Mobile App
4 5 (9.80%) Wiki
4 5 (9.80%) Blog
4 5 (9.80%) Social Network
5 4 (7.84%) Cryptography
5 4 (7.84%) Analytical Skills
5 4 (7.84%) Data Structures
5 4 (7.84%) Algorithms
6 2 (3.92%) Web 2.0
Operating Systems
1 31 (60.78%) Linux
2 20 (39.22%) Android
3 12 (23.53%) openSUSE
3 12 (23.53%) Ubuntu
4 8 (15.69%) Apple iOS
5 4 (7.84%) UNIX
5 4 (7.84%) Windows
Processes & Methodologies
1 28 (54.90%) Agile Software Development
2 27 (52.94%) TDD
3 23 (45.10%) Use Case
3 23 (45.10%) E-Commerce
4 19 (37.25%) Continuous Integration
5 17 (33.33%) Unit Testing
6 16 (31.37%) UML
7 14 (27.45%) OOA/OOD
8 12 (23.53%) OO
9 11 (21.57%) Quality Management
9 11 (21.57%) Project Management
9 11 (21.57%) Cutover Planning
10 8 (15.69%) Web Development
10 8 (15.69%) Software Engineering
10 8 (15.69%) Android Development
10 8 (15.69%) iOS Development
11 6 (11.76%) Scrum
11 6 (11.76%) BDD
11 6 (11.76%) User Stories
12 5 (9.80%) Continuous Improvement
Programming Languages
1 51 (100.00%) Java
2 50 (98.04%) JavaScript
3 14 (27.45%) SQL
4 12 (23.53%) Perl
4 12 (23.53%) PHP
5 8 (15.69%) PL/SQL
5 8 (15.69%) ECMAScript
6 4 (7.84%) XPath
6 4 (7.84%) XQuery
6 4 (7.84%) Shell Script
6 4 (7.84%) C
Qualifications
1 6 (11.76%) Degree
Quality Assurance & Compliance
1 9 (17.65%) QA
System Software
1 12 (23.53%) Docker
2 4 (7.84%) VMware Infrastructure
Systems Management
1 16 (31.37%) Opscode Chef
2 12 (23.53%) Puppet
2 12 (23.53%) Salt
Vendors
1 39 (76.47%) Oracle
2 11 (21.57%) ATG
3 8 (15.69%) Adobe
4 6 (11.76%) IBM
5 4 (7.84%) VMware
5 4 (7.84%) Cisco
5 4 (7.84%) Guidewire
5 4 (7.84%) Coverity