The table below looks at the statistics for Apache Cassandra skills in IT contracts advertised for the 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 23 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
23 Sep 2014
Same period 2013 Same period 2012
Apache Cassandra
Rank 268 322 350
Rank change year-on-year
+54 +28
Contract jobs citing Apache Cassandra 153 109 70
As % of all contract IT jobs located in London 0.62% 0.43% 0.27%
As % of the Database & Business Intelligence category 2.79% 1.90% 1.27%
Number of daily rates quoted 132 94 52
Average daily rate
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of your Daily Rate
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£519 £475 £405
Average daily rate % change year-on-year
+9.21% +17.28%
90% offered a daily rate of more than £384 £405 £339
10% offered a daily rate of more than £775 £550 £548
UK excluding London average daily rate £645 £425 £385
% change year-on-year
+51.76% +10.38%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - - -
Apache Cassandra
England

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 London region.

Database & Business Intelligence Category
London
Contract IT job ads with a match in the
Database & Business Intelligence category
5481 5729 5526
As % of all contract IT jobs located in London 22.36% 22.80% 21.12%
Number of daily rates quoted 3802 3971 3669
Average daily rate £430 £425 £425
Average daily rate % change year-on-year
+1.17% -
90% offered a daily rate of more than £300 £300 £295
10% offered a daily rate of more than £600 £563 £575
UK excluding London average daily rate £350 £340 £338
% change year-on-year
+2.94% +0.74%
Number of hourly rates quoted 40 34 70
Average hourly rate £28.25 £27.50 £26.50
Average hourly rate % change year-on-year
+2.72% +3.77%
90% offered a hourly rate of more than £15.00 £18.88 £16.00
10% offered a hourly rate of more than £44.50 £59.87 £47.25
UK excluding London average hourly rate £32.05 £30.00 £32.30
% change year-on-year
+6.81% -7.12%

Apache Cassandra
Jobs Demand Trend in London

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

Apache Cassandra Jobs Demand Trend in London

Apache Cassandra
Daily Rate Trend in London

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

Apache Cassandra Daily Rate Trend in London

Apache Cassandra
Daily Rate Histogram in London

This chart provides a histogram of daily rates quoted in contract IT jobs citing Apache Cassandra across the London region over the 3 months to 23 September 2014.

Apache Cassandra Daily Rate Histogram in London

Apache Cassandra
Contract Job Locations in London

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing Apache Cassandra within the London region over the 3 months to 23 September 2014. 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
Contract
IT Job Ads
Average
Daily Rate
Last 3 Months
Average Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +13 22 £468 -1.47% 6
Isleworth - 1 £378 - 1
Hounslow - - - -
Chiswick - - - -
Apache Cassandra
England

Apache Cassandra
Top 30 Related IT Skills in London

For the 6 months to 23 September 2014, IT contractor jobs across the 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.

1 185 (59.29%) NoSQL
2 179 (57.37%) Java
3 168 (53.85%) Agile Software Development
4 162 (51.92%) MongoDB
5 135 (43.27%) Hadoop
6 115 (36.86%) Linux
7 113 (36.22%) TDD
8 101 (32.37%) Big Data
9 86 (27.56%) Python
10 83 (26.60%) Ruby
11 81 (25.96%) Scrum
12 79 (25.32%) Scala
13 73 (23.40%) Open Source
14 69 (22.12%) DevOps
15 68 (21.79%) JavaScript
16 64 (20.51%) Apache Hive
17 61 (19.55%) Jenkins
17 61 (19.55%) Opscode Chef
18 59 (18.91%) Redis
19 58 (18.59%) Kanban
20 55 (17.63%) Spring
20 55 (17.63%) MySQL
20 55 (17.63%) Web Services
21 54 (17.31%) REST
22 52 (16.67%) Puppet
22 52 (16.67%) BDD
23 51 (16.35%) MapReduce
24 50 (16.03%) Apache
25 48 (15.38%) Continuous Integration
25 48 (15.38%) HBase

Apache Cassandra
Top Related IT Skills in London by Category

For the 6 months to 23 September 2014, IT contractor jobs across the 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 50 (16.03%) Apache
2 39 (12.50%) Elasticsearch
3 37 (11.86%) Apache Pig
4 32 (10.26%) Node.js
5 23 (7.37%) Tomcat
6 17 (5.45%) OpenStack
7 10 (3.21%) nginx
7 10 (3.21%) Apache Solr
7 10 (3.21%) Confluence
7 10 (3.21%) Cloud Foundry
8 9 (2.88%) CloudStack
9 6 (1.92%) Jetty
10 5 (1.60%) GemFire
10 5 (1.60%) SharePoint
11 4 (1.28%) Oracle Coherence
11 4 (1.28%) Apache ServiceMix
12 3 (0.96%) TIBCO EMS
13 1 (0.32%) SAS
Business Applications
1 5 (1.60%) ION MarketView
2 3 (0.96%) BusinessWorks
3 1 (0.32%) Summit
Cloud Services
1 42 (13.46%) Amazon AWS
2 14 (4.49%) GitHub
3 8 (2.56%) Amazon EC2
4 6 (1.92%) IaaS
5 5 (1.60%) Microsoft Azure
5 5 (1.60%) Cloud Computing
6 4 (1.28%) Heroku
7 3 (0.96%) Amazon S3
8 2 (0.64%) Google App Engine
8 2 (0.64%) PaaS
8 2 (0.64%) Amazon EMR
9 1 (0.32%) SaaS
Communications & Networking
1 18 (5.77%) Internet
2 14 (4.49%) HTTP
2 14 (4.49%) TCP/IP
3 10 (3.21%) DNS
4 4 (1.28%) LAN
4 4 (1.28%) WAN
5 2 (0.64%) AMQP
5 2 (0.64%) VoIP
6 1 (0.32%) RTP
6 1 (0.32%) SAN
Database & Business Intelligence
1 185 (59.29%) NoSQL
2 162 (51.92%) MongoDB
3 135 (43.27%) Hadoop
4 101 (32.37%) Big Data
5 64 (20.51%) Apache Hive
6 59 (18.91%) Redis
7 55 (17.63%) MySQL
8 48 (15.38%) HBase
9 47 (15.06%) Riak
10 31 (9.94%) Couchbase
11 29 (9.29%) PostgreSQL
12 24 (7.69%) Data Warehouse
12 24 (7.69%) CouchDB
12 24 (7.69%) Sqoop
13 23 (7.37%) Mahout
14 22 (7.05%) Oracle Exadata
15 20 (6.41%) MarkLogic
16 19 (6.09%) Relational Database
16 19 (6.09%) HCatalog
17 16 (5.13%) SQL Server
Development Applications
1 61 (19.55%) Jenkins
2 37 (11.86%) Hudson
3 26 (8.33%) Git (software)
4 22 (7.05%) Maven
5 19 (6.09%) Cucumber
6 16 (5.13%) JIRA
7 14 (4.49%) JUnit
8 9 (2.88%) Eclipse
9 5 (1.60%) Gradle
10 3 (0.96%) TeamCity
11 2 (0.64%) Subversion
11 2 (0.64%) Mockito
11 2 (0.64%) Selenium
12 1 (0.32%) jMock
12 1 (0.32%) Talend Open Studio
12 1 (0.32%) TestNG
12 1 (0.32%) LoadRunner
12 1 (0.32%) JMeter
12 1 (0.32%) Mocha
12 1 (0.32%) Mercurial
General
1 25 (8.01%) Banking
2 15 (4.81%) Finance
3 11 (3.53%) Marketing
4 10 (3.21%) Games
4 10 (3.21%) Investment Banking
5 4 (1.28%) Publishing
6 3 (0.96%) Telecoms
7 1 (0.32%) Law
7 1 (0.32%) Pharmaceutical
7 1 (0.32%) Front Office
Job Titles
1 175 (56.09%) Developer
2 78 (25.00%) Java Developer
3 66 (21.15%) Architect
4 37 (11.86%) DevOps Engineer
5 27 (8.65%) Senior Developer
6 22 (7.05%) Senior DevOps Engineer
7 17 (5.45%) Big Data Developer
7 17 (5.45%) Technical Architect
8 16 (5.13%) Ruby Developer
9 15 (4.81%) Data Architect
9 15 (4.81%) Linux DevOps Engineer
10 14 (4.49%) DevOps Architect
11 13 (4.17%) Enterprise Architect
11 13 (4.17%) JavaScript Developer
12 12 (3.85%) Programmer
12 12 (3.85%) Hadoop Developer
13 11 (3.53%) Scala Developer
14 10 (3.21%) Lead Architect
14 10 (3.21%) Senior Java Developer
15 8 (2.56%) Ruby on Rails Developer
Libraries, Frameworks & Software Standards
1 55 (17.63%) Web Services
1 55 (17.63%) Spring
2 54 (17.31%) REST
3 44 (14.10%) JSON
4 43 (13.78%) HTML
5 39 (12.50%) CSS
6 32 (10.26%) Kafka
7 31 (9.94%) XML
7 31 (9.94%) Ruby on Rails
7 31 (9.94%) HTML5
8 27 (8.65%) CSS3
8 27 (8.65%) RabbitMQ
9 26 (8.33%) AngularJS
10 22 (7.05%) Backbone.js
10 22 (7.05%) Cascading
11 21 (6.73%) SOAP
12 20 (6.41%) Hibernate
13 17 (5.45%) Play Framework
14 16 (5.13%) LAMP
14 16 (5.13%) Ajax
Miscellaneous
1 73 (23.40%) Open Source
2 27 (8.65%) Computer Science
3 22 (7.05%) Visualisation
4 9 (2.88%) User Experience
4 9 (2.88%) Analytical Skills
4 9 (2.88%) Social Gaming
5 6 (1.92%) Wiki
5 6 (1.92%) Social Network
5 6 (1.92%) Statistics
6 5 (1.60%) Foreign Exchange (FX)
7 4 (1.28%) Management Information System
7 4 (1.28%) Mathematics
7 4 (1.28%) Derivative
7 4 (1.28%) Data Integration
8 3 (0.96%) Market Risk
8 3 (0.96%) Online Games
8 3 (0.96%) Reference Data
8 3 (0.96%) Physics
9 2 (0.64%) N-Tier
9 2 (0.64%) Streaming Video
Operating Systems
1 115 (36.86%) Linux
2 42 (13.46%) UNIX
3 31 (9.94%) CentOS
4 16 (5.13%) Debian
4 16 (5.13%) Ubuntu
5 6 (1.92%) Windows
6 2 (0.64%) Android
6 2 (0.64%) Apple iOS
7 1 (0.32%) SmartOS
7 1 (0.32%) Mac OS X
Processes & Methodologies
1 168 (53.85%) Agile Software Development
2 113 (36.22%) TDD
3 81 (25.96%) Scrum
4 69 (22.12%) DevOps
5 58 (18.59%) Kanban
6 52 (16.67%) BDD
7 51 (16.35%) MapReduce
8 48 (15.38%) Continuous Integration
9 44 (14.10%) OO
10 34 (10.90%) Analytics
11 32 (10.26%) Pair Programming
11 32 (10.26%) Software Engineering
12 27 (8.65%) E-Commerce
13 23 (7.37%) Configuration Management
13 23 (7.37%) Mentoring
14 20 (6.41%) Product Management
15 19 (6.09%) ITIL
16 18 (5.77%) Business Intelligence
17 17 (5.45%) UML
18 16 (5.13%) Complex Event Processing
Programming Languages
1 179 (57.37%) Java
2 86 (27.56%) Python
3 83 (26.60%) Ruby
4 79 (25.32%) Scala
5 68 (21.79%) JavaScript
6 34 (10.90%) PHP
7 31 (9.94%) SQL
8 28 (8.97%) Perl
9 27 (8.65%) Groovy
10 19 (6.09%) Bash Shell
11 16 (5.13%) Clojure
12 14 (4.49%) C#
13 8 (2.56%) Shell Script
14 6 (1.92%) Erlang
14 6 (1.92%) C++
14 6 (1.92%) C
15 4 (1.28%) R
15 4 (1.28%) Golang
16 3 (0.96%) Haskell
17 2 (0.64%) PL/SQL
Qualifications
1 31 (9.94%) Degree
2 5 (1.60%) Security Cleared
3 4 (1.28%) SC Cleared
3 4 (1.28%) CCNA
3 4 (1.28%) CISSP
3 4 (1.28%) Cisco Certification
3 4 (1.28%) CISM
3 4 (1.28%) CCSA
3 4 (1.28%) JNCIA
4 1 (0.32%) PhD
Quality Assurance & Compliance
1 6 (1.92%) SLA
1 6 (1.92%) QA
2 1 (0.32%) ISO 9001
2 1 (0.32%) ISO 14001
2 1 (0.32%) COBIT
System Software
1 26 (8.33%) HDFS
2 23 (7.37%) Apache Flume
3 22 (7.05%) Apache ZooKeeper
4 19 (6.09%) vCloud
5 7 (2.24%) Oracle RAC
6 3 (0.96%) VMware Infrastructure
7 2 (0.64%) vSphere
8 1 (0.32%) Docker
Systems Management
1 61 (19.55%) Opscode Chef
2 52 (16.67%) Puppet
3 43 (13.78%) Nagios
4 42 (13.46%) Oozie
5 31 (9.94%) ZABBIX
6 19 (6.09%) Ambari
6 19 (6.09%) Ansible
6 19 (6.09%) Salt
7 16 (5.13%) Cacti
8 15 (4.81%) Zenoss
9 14 (4.49%) Kibana
9 14 (4.49%) Graylog2
10 9 (2.88%) Opsview
10 9 (2.88%) collectd
11 2 (0.64%) Vagrant
11 2 (0.64%) Chukwa
Vendors
1 39 (12.50%) Oracle
2 24 (7.69%) Netezza
3 23 (7.37%) Rackspace
4 20 (6.41%) Teradata
4 20 (6.41%) MapR
5 19 (6.09%) Hortonworks
6 18 (5.77%) Red Hat
7 16 (5.13%) Perforce
8 14 (4.49%) JBoss
8 14 (4.49%) Splunk
9 11 (3.53%) Sybase
9 11 (3.53%) VMware
10 10 (3.21%) Akamai
10 10 (3.21%) Atlassian
11 8 (2.56%) Zend
12 6 (1.92%) Google
12 6 (1.92%) Microsoft
13 5 (1.60%) ION Trading
14 4 (1.28%) Yantra
14 4 (1.28%) Vertica
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