The table below looks at the statistics for Apache Cassandra skills in IT contracts advertised for the City of London region. Included is a guide to the average contractor rates offered in IT contracts that have cited Apache Cassandra over the 3 months to 19 September 2014 with a comparison to the same period in the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

Location
3 months to
19 Sep 2014
Same period 2013 Same period 2012
Apache Cassandra
Rank 175 197 212
Rank change year-on-year
+22 +15
Contract jobs citing Apache Cassandra 24 30 8
As % of all contract IT jobs located in the City of London 0.41% 0.42% 0.10%
As % of the Database & Business Intelligence category 1.82% 1.84% 0.51%
Number of daily rates quoted 18 27 8
Average daily rate
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of your Daily Rate
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£456 £475 £375
Average daily rate % change year-on-year
-3.94% +26.66%
90% offered a daily rate of more than £368 £385 £275
10% offered a daily rate of more than £565 £650 £490
UK excluding London average daily rate £650 £425 £385
% change year-on-year
+52.94% +10.38%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - - -
Apache Cassandra
London

The following table is for comparison with the above and provides statistics for the entire Database & Business Intelligence category in contract jobs advertised in the City of London region.

Database & Business Intelligence Category
City of London
Contract IT job ads with a match in the
Database & Business Intelligence category
1316 1629 1577
As % of all contract IT jobs located in the City of London 22.35% 22.63% 20.32%
Number of daily rates quoted 1001 1228 1146
Average daily rate £433 £433 £450
Average daily rate % change year-on-year
- -3.88%
90% offered a daily rate of more than £308 £315 £300
10% offered a daily rate of more than £575 £600 £575
UK excluding London average daily rate £350 £345 £338
% change year-on-year
+1.44% +2.22%
Number of hourly rates quoted 2 13 19
Average hourly rate £44.50 £27.97 £32.50
Average hourly rate % change year-on-year
+59.09% -13.93%
UK excluding London average hourly rate £30.00 £30.00 £32.05
% change year-on-year
- -6.39%

Apache Cassandra
Jobs Demand Trend in the City of London

This chart provides a 3-month moving total of IT contractor jobs citing Apache Cassandra across the City of London region as a proportion of the total demand within the Database & Business Intelligence category.

Apache Cassandra Jobs Demand Trend in the City of London

Apache Cassandra
Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing Apache Cassandra across the City of London region.

Apache Cassandra Daily Rate Trend in the City of London

Apache Cassandra
Daily Rate Histogram in the City of London

This chart provides a histogram of daily rates quoted in contract IT jobs citing Apache Cassandra across the City of London region over the 3 months to 19 September 2014.

Apache Cassandra Daily Rate Histogram in the City of London

Apache Cassandra
Top 30 Related IT Skills in the City of London

For the 6 months to 19 September 2014, IT contractor jobs across the City of London region citing Apache Cassandra 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 contract IT job ads sampled that cited Apache Cassandra.

1 30 (63.83%) Java
2 26 (55.32%) MongoDB
3 23 (48.94%) NoSQL
4 22 (46.81%) Agile Software Development
5 18 (38.30%) Scala
6 17 (36.17%) Hadoop
7 15 (31.91%) Ruby
8 14 (29.79%) TDD
9 13 (27.66%) SQL
9 13 (27.66%) Big Data
10 10 (21.28%) Scrum
10 10 (21.28%) JavaScript
10 10 (21.28%) Open Source
11 9 (19.15%) BDD
11 9 (19.15%) Web Services
11 9 (19.15%) Python
11 9 (19.15%) E-Commerce
11 9 (19.15%) Spring
12 8 (17.02%) Ruby on Rails
12 8 (17.02%) Degree
12 8 (17.02%) Computer Science
12 8 (17.02%) Hibernate
12 8 (17.02%) HTML
12 8 (17.02%) Linux
12 8 (17.02%) HTML5
12 8 (17.02%) Redis
13 7 (14.89%) REST
13 7 (14.89%) Opscode Chef
13 7 (14.89%) MySQL
14 6 (12.77%) CSS

Apache Cassandra
Top Related IT Skills in the City of London by Category

For the 6 months to 19 September 2014, IT contractor jobs across the City of London region citing Apache Cassandra also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited Apache Cassandra. Up to 20 skills are shown per category.

Application Platforms
1 6 (12.77%) Apache Pig
2 5 (10.64%) Node.js
2 5 (10.64%) Elasticsearch
3 3 (6.38%) Apache
3 3 (6.38%) Tomcat
4 2 (4.26%) nginx
4 2 (4.26%) Cloud Foundry
4 2 (4.26%) CloudStack
5 1 (2.13%) TIBCO EMS
Business Applications
1 1 (2.13%) BusinessWorks
Cloud Services
1 3 (6.38%) Amazon AWS
2 2 (4.26%) PaaS
3 1 (2.13%) GitHub
3 1 (2.13%) IaaS
3 1 (2.13%) Amazon EC2
3 1 (2.13%) Amazon S3
Communications & Networking
1 2 (4.26%) HTTP
1 2 (4.26%) TCP/IP
1 2 (4.26%) DNS
1 2 (4.26%) Internet
Database & Business Intelligence
1 26 (55.32%) MongoDB
2 23 (48.94%) NoSQL
3 17 (36.17%) Hadoop
4 13 (27.66%) Big Data
5 8 (17.02%) Redis
6 7 (14.89%) MySQL
7 6 (12.77%) PostgreSQL
7 6 (12.77%) Apache Hive
8 4 (8.51%) HBase
9 3 (6.38%) Neo4j
9 3 (6.38%) Data Mining
9 3 (6.38%) CouchDB
10 2 (4.26%) Relational Database
11 1 (2.13%) Hazelcast
11 1 (2.13%) Sqoop
11 1 (2.13%) Azkaban
11 1 (2.13%) Impala
11 1 (2.13%) Vectorwise
11 1 (2.13%) SQL Server
11 1 (2.13%) Data Warehouse
Development Applications
1 5 (10.64%) Hudson
1 5 (10.64%) Jenkins
2 4 (8.51%) JUnit
3 3 (6.38%) Git (software)
3 3 (6.38%) JIRA
4 2 (4.26%) Maven
4 2 (4.26%) TeamCity
4 2 (4.26%) Cucumber
5 1 (2.13%) Mockito
5 1 (2.13%) Grunt
5 1 (2.13%) Ant
5 1 (2.13%) EasyMock
5 1 (2.13%) Mercurial
5 1 (2.13%) jMock
5 1 (2.13%) Subversion
General
1 3 (6.38%) Finance
1 3 (6.38%) Banking
1 3 (6.38%) Marketing
2 1 (2.13%) Telecoms
2 1 (2.13%) Law
2 1 (2.13%) Investment Banking
Job Titles
1 30 (63.83%) Developer
2 17 (36.17%) Java Developer
3 11 (23.40%) Senior Developer
4 5 (10.64%) Ruby Developer
5 4 (8.51%) Senior Java Developer
5 4 (8.51%) Architect
6 3 (6.38%) Senior Ruby on Rails Developer
6 3 (6.38%) Agile Java Developer
6 3 (6.38%) Big Data Developer
6 3 (6.38%) DevOps Engineer
6 3 (6.38%) Scala Developer
6 3 (6.38%) Software Engineer
6 3 (6.38%) Technical Architect
6 3 (6.38%) Ruby on Rails Developer
7 2 (4.26%) Python Developer
7 2 (4.26%) JavaScript Developer
7 2 (4.26%) Senior DevOps Engineer
8 1 (2.13%) Head of Architecture
8 1 (2.13%) CSS Developer
8 1 (2.13%) Senior Business Intelligence Developer
Libraries, Frameworks & Software Standards
1 9 (19.15%) Web Services
1 9 (19.15%) Spring
2 8 (17.02%) Ruby on Rails
2 8 (17.02%) Hibernate
2 8 (17.02%) HTML
2 8 (17.02%) HTML5
3 7 (14.89%) REST
4 6 (12.77%) CSS
4 6 (12.77%) CSS3
5 5 (10.64%) JSON
6 4 (8.51%) ActiveMQ
6 4 (8.51%) RESTful
6 4 (8.51%) Play Framework
7 3 (6.38%) AngularJS
7 3 (6.38%) J2EE
7 3 (6.38%) XML
7 3 (6.38%) JMS
7 3 (6.38%) Django
7 3 (6.38%) Ajax
8 2 (4.26%) SOAP
Miscellaneous
1 10 (21.28%) Open Source
2 8 (17.02%) Computer Science
3 3 (6.38%) Market Risk
3 3 (6.38%) Derivative
4 2 (4.26%) Statistics
4 2 (4.26%) Social Network
4 2 (4.26%) Mathematics
4 2 (4.26%) Physics
5 1 (2.13%) Digital Media
5 1 (2.13%) User Experience
5 1 (2.13%) Internet of Things
5 1 (2.13%) Management Information System
5 1 (2.13%) Visualisation
Operating Systems
1 8 (17.02%) Linux
2 6 (12.77%) UNIX
3 2 (4.26%) Windows
4 1 (2.13%) SmartOS
Processes & Methodologies
1 22 (46.81%) Agile Software Development
2 14 (29.79%) TDD
3 10 (21.28%) Scrum
4 9 (19.15%) BDD
4 9 (19.15%) E-Commerce
5 6 (12.77%) OO
5 6 (12.77%) Kanban
5 6 (12.77%) MapReduce
5 6 (12.77%) DevOps
6 4 (8.51%) Automated Testing
6 4 (8.51%) Software Engineering
6 4 (8.51%) Product Management
7 3 (6.38%) Complex Event Processing
7 3 (6.38%) Software Architecture
7 3 (6.38%) Analytics
7 3 (6.38%) Configuration Management
7 3 (6.38%) Business Intelligence
7 3 (6.38%) Pair Programming
8 2 (4.26%) Data Analysis
8 2 (4.26%) Risk Analysis
Programming Languages
1 30 (63.83%) Java
2 18 (38.30%) Scala
3 15 (31.91%) Ruby
4 13 (27.66%) SQL
5 10 (21.28%) JavaScript
6 9 (19.15%) Python
7 3 (6.38%) Groovy
8 2 (4.26%) C
8 2 (4.26%) Perl
8 2 (4.26%) PL/SQL
8 2 (4.26%) Erlang
9 1 (2.13%) R
9 1 (2.13%) Clojure
9 1 (2.13%) Bash Shell
9 1 (2.13%) C#
9 1 (2.13%) Shell Script
Qualifications
1 8 (17.02%) Degree
Quality Assurance & Compliance
1 1 (2.13%) COBIT
System Software
1 3 (6.38%) HDFS
2 1 (2.13%) VMware Infrastructure
Systems Management
1 7 (14.89%) Opscode Chef
2 3 (6.38%) Puppet
2 3 (6.38%) Oozie
2 3 (6.38%) Ansible
3 2 (4.26%) Nagios
3 2 (4.26%) collectd
3 2 (4.26%) Opsview
3 2 (4.26%) Vagrant
Vendors
1 2 (4.26%) Netezza
1 2 (4.26%) JBoss
1 2 (4.26%) Oracle
1 2 (4.26%) Akamai
1 2 (4.26%) Vertica
2 1 (2.13%) Infobright
2 1 (2.13%) Tableau
2 1 (2.13%) Sybase
2 1 (2.13%) Business Objects
2 1 (2.13%) Cognos
2 1 (2.13%) TIBCO
2 1 (2.13%) MicroStrategy
2 1 (2.13%) Perforce
2 1 (2.13%) VMware
2 1 (2.13%) Greenplum
2 1 (2.13%) DoubleClick
2 1 (2.13%) Google
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