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 2 October 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
2 Oct 2014
Same period 2013 Same period 2012
Apache Cassandra
Rank 279 326 345
Rank change year-on-year
+47 +19
Contract jobs citing Apache Cassandra 146 99 72
As % of all contract IT jobs located in London 0.59% 0.40% 0.29%
As % of the Database & Business Intelligence category 2.68% 1.74% 1.33%
Number of daily rates quoted 129 85 53
Average daily rate
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of your Daily Rate
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£500 £475 £405
Average daily rate % change year-on-year
+5.26% +17.28%
90% offered a daily rate of more than £378 £400 £340
10% offered a daily rate of more than £775 £550 £525
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
5450 5678 5423
As % of all contract IT jobs located in London 22.11% 22.84% 21.56%
Number of daily rates quoted 3835 3943 3639
Average daily rate £425 £425 £438
Average daily rate % change year-on-year
- -2.85%
90% offered a daily rate of more than £300 £301 £290
10% offered a daily rate of more than £600 £559 £575
UK excluding London average daily rate £350 £340 £338
% change year-on-year
+2.94% +0.74%
Number of hourly rates quoted 35 36 67
Average hourly rate £29.00 £25.00 £26.50
Average hourly rate % change year-on-year
+16.00% -5.66%
90% offered a hourly rate of more than £15.00 £18.82 £16.00
10% offered a hourly rate of more than £44.50 £59.13 £45.00
UK excluding London average hourly rate £33.00 £32.03 £30.00
% change year-on-year
+3.03% +6.75%

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 2 October 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 2 October 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 +4 15 £475 +1.33% 15
Isleworth - 2 £370 -
Hounslow - 1 £500 -
Chiswick - - - -
Apache Cassandra
England

Apache Cassandra
Top 30 Related IT Skills in London

For the 6 months to 2 October 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.

1 188 (59.49%) NoSQL
2 182 (57.59%) Java
3 170 (53.80%) Agile Software Development
4 161 (50.95%) MongoDB
5 136 (43.04%) Hadoop
6 118 (37.34%) Linux
7 117 (37.03%) TDD
8 102 (32.28%) Big Data
9 94 (29.75%) Python
10 85 (26.90%) Ruby
11 82 (25.95%) Scrum
11 82 (25.95%) Scala
12 77 (24.37%) Open Source
13 72 (22.78%) DevOps
13 72 (22.78%) JavaScript
14 69 (21.84%) Jenkins
15 66 (20.89%) Apache Hive
16 65 (20.57%) Opscode Chef
17 59 (18.67%) Kanban
18 58 (18.35%) Redis
19 57 (18.04%) Puppet
20 55 (17.41%) BDD
20 55 (17.41%) Continuous Integration
21 52 (16.46%) Spring
21 52 (16.46%) MySQL
21 52 (16.46%) REST
21 52 (16.46%) MapReduce
22 51 (16.14%) Web Services
23 48 (15.19%) Apache
23 48 (15.19%) HBase

Apache Cassandra
Top Related IT Skills in London by Category

For the 6 months to 2 October 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 48 (15.19%) Apache
2 40 (12.66%) Elasticsearch
3 36 (11.39%) Apache Pig
4 34 (10.76%) Node.js
5 20 (6.33%) Tomcat
6 19 (6.01%) OpenStack
7 17 (5.38%) Apache Spark
8 12 (3.80%) Apache Solr
9 10 (3.16%) Confluence
10 8 (2.53%) nginx
11 7 (2.22%) Jetty
11 7 (2.22%) Cloud Foundry
11 7 (2.22%) CloudStack
12 5 (1.58%) SharePoint
12 5 (1.58%) GemFire
13 4 (1.27%) Apache ServiceMix
13 4 (1.27%) Oracle Coherence
14 3 (0.95%) TIBCO EMS
15 1 (0.32%) SAS
Business Applications
1 5 (1.58%) ION MarketView
2 3 (0.95%) BusinessWorks
3 1 (0.32%) Summit
Cloud Services
1 38 (12.03%) Amazon AWS
2 16 (5.06%) GitHub
3 7 (2.22%) IaaS
3 7 (2.22%) Amazon EC2
4 5 (1.58%) Cloud Computing
4 5 (1.58%) Microsoft Azure
5 4 (1.27%) Heroku
6 3 (0.95%) Amazon S3
7 2 (0.63%) Google App Engine
7 2 (0.63%) PaaS
8 1 (0.32%) Amazon EMR
8 1 (0.32%) SaaS
Communications & Networking
1 18 (5.70%) Internet
2 15 (4.75%) HTTP
3 14 (4.43%) TCP/IP
4 9 (2.85%) DNS
5 4 (1.27%) LAN
5 4 (1.27%) WAN
6 2 (0.63%) AMQP
6 2 (0.63%) VoIP
7 1 (0.32%) RTP
7 1 (0.32%) SAN
Database & Business Intelligence
1 188 (59.49%) NoSQL
2 161 (50.95%) MongoDB
3 136 (43.04%) Hadoop
4 102 (32.28%) Big Data
5 66 (20.89%) Apache Hive
6 58 (18.35%) Redis
7 52 (16.46%) MySQL
8 48 (15.19%) HBase
9 47 (14.87%) Riak
10 32 (10.13%) Couchbase
11 27 (8.54%) PostgreSQL
12 25 (7.91%) Data Warehouse
12 25 (7.91%) CouchDB
13 24 (7.59%) Sqoop
14 23 (7.28%) Mahout
14 23 (7.28%) Oracle Exadata
15 21 (6.65%) MarkLogic
16 20 (6.33%) HCatalog
17 17 (5.38%) Relational Database
18 16 (5.06%) SQL Server
Development Applications
1 69 (21.84%) Jenkins
2 38 (12.03%) Hudson
3 27 (8.54%) Git (software)
4 22 (6.96%) Cucumber
4 22 (6.96%) Maven
5 15 (4.75%) JIRA
6 11 (3.48%) JUnit
7 7 (2.22%) Eclipse
8 5 (1.58%) Gradle
9 2 (0.63%) Mocha
9 2 (0.63%) Subversion
9 2 (0.63%) TeamCity
9 2 (0.63%) Selenium
10 1 (0.32%) JMeter
10 1 (0.32%) LoadRunner
10 1 (0.32%) Ant
10 1 (0.32%) jMock
10 1 (0.32%) EasyMock
10 1 (0.32%) TestNG
10 1 (0.32%) Talend Open Studio
General
1 26 (8.23%) Banking
2 15 (4.75%) Finance
3 11 (3.48%) Marketing
4 10 (3.16%) Investment Banking
4 10 (3.16%) Games
5 4 (1.27%) Publishing
5 4 (1.27%) Telecoms
6 1 (0.32%) Law
6 1 (0.32%) Front Office
6 1 (0.32%) Pharmaceutical
Job Titles
1 180 (56.96%) Developer
2 78 (24.68%) Java Developer
3 69 (21.84%) Architect
4 39 (12.34%) DevOps Engineer
5 26 (8.23%) Senior Developer
6 24 (7.59%) Senior DevOps Engineer
7 17 (5.38%) Technical Architect
7 17 (5.38%) Big Data Developer
8 16 (5.06%) Linux DevOps Engineer
8 16 (5.06%) Ruby Developer
9 15 (4.75%) Data Architect
9 15 (4.75%) JavaScript Developer
9 15 (4.75%) DevOps Architect
10 14 (4.43%) Enterprise Architect
11 13 (4.11%) Hadoop Developer
12 12 (3.80%) Programmer
13 11 (3.48%) Scala Developer
14 10 (3.16%) Lead Architect
15 9 (2.85%) Senior Java Developer
16 8 (2.53%) Big Data Architect
Libraries, Frameworks & Software Standards
1 52 (16.46%) Spring
1 52 (16.46%) REST
2 51 (16.14%) Web Services
3 43 (13.61%) JSON
4 42 (13.29%) HTML
5 38 (12.03%) CSS
6 31 (9.81%) Kafka
6 31 (9.81%) HTML5
7 30 (9.49%) Ruby on Rails
7 30 (9.49%) XML
8 29 (9.18%) AngularJS
9 27 (8.54%) CSS3
9 27 (8.54%) RabbitMQ
10 25 (7.91%) Backbone.js
11 22 (6.96%) Cascading
12 19 (6.01%) SOAP
13 18 (5.70%) Hibernate
14 17 (5.38%) Play Framework
15 16 (5.06%) Ajax
16 15 (4.75%) LAMP
Miscellaneous
1 77 (24.37%) Open Source
2 27 (8.54%) Computer Science
3 23 (7.28%) Visualisation
4 12 (3.80%) Algorithms
5 9 (2.85%) User Experience
5 9 (2.85%) Analytical Skills
5 9 (2.85%) Social Gaming
6 6 (1.90%) Statistics
6 6 (1.90%) Wiki
7 5 (1.58%) Foreign Exchange (FX)
7 5 (1.58%) Social Network
8 4 (1.27%) Derivative
8 4 (1.27%) Data Integration
8 4 (1.27%) Mathematics
8 4 (1.27%) Management Information System
9 3 (0.95%) Physics
9 3 (0.95%) Market Risk
9 3 (0.95%) Online Games
9 3 (0.95%) Reference Data
10 2 (0.63%) Hedge funds
Operating Systems
1 118 (37.34%) Linux
2 41 (12.97%) UNIX
3 31 (9.81%) CentOS
4 17 (5.38%) Ubuntu
5 15 (4.75%) Debian
6 7 (2.22%) Windows
7 2 (0.63%) Apple iOS
7 2 (0.63%) Android
8 1 (0.32%) Mac OS X
8 1 (0.32%) SmartOS
Processes & Methodologies
1 170 (53.80%) Agile Software Development
2 117 (37.03%) TDD
3 82 (25.95%) Scrum
4 72 (22.78%) DevOps
5 59 (18.67%) Kanban
6 55 (17.41%) BDD
6 55 (17.41%) Continuous Integration
7 52 (16.46%) MapReduce
8 45 (14.24%) OO
9 37 (11.71%) Analytics
10 35 (11.08%) Software Engineering
11 33 (10.44%) Pair Programming
12 29 (9.18%) E-Commerce
13 25 (7.91%) Configuration Management
14 21 (6.65%) Mentoring
15 20 (6.33%) Product Management
16 19 (6.01%) ITIL
16 19 (6.01%) Business Intelligence
17 16 (5.06%) Complex Event Processing
17 16 (5.06%) Load Balancing
Programming Languages
1 182 (57.59%) Java
2 94 (29.75%) Python
3 85 (26.90%) Ruby
4 82 (25.95%) Scala
5 72 (22.78%) JavaScript
6 36 (11.39%) PHP
7 30 (9.49%) SQL
8 28 (8.86%) Groovy
9 27 (8.54%) Perl
10 18 (5.70%) Clojure
10 18 (5.70%) Bash Shell
11 16 (5.06%) C#
12 9 (2.85%) Shell Script
13 6 (1.90%) Erlang
13 6 (1.90%) C++
13 6 (1.90%) C
14 4 (1.27%) R
14 4 (1.27%) Golang
15 3 (0.95%) Haskell
16 2 (0.63%) PL/SQL
Qualifications
1 33 (10.44%) Degree
2 5 (1.58%) Security Cleared
3 4 (1.27%) CCSA
3 4 (1.27%) JNCIA
3 4 (1.27%) SC Cleared
3 4 (1.27%) CISSP
3 4 (1.27%) Cisco Certification
3 4 (1.27%) CCNA
3 4 (1.27%) CISM
4 1 (0.32%) PhD
Quality Assurance & Compliance
1 7 (2.22%) QA
2 6 (1.90%) SLA
3 1 (0.32%) ISO 14001
3 1 (0.32%) ISO 9001
3 1 (0.32%) COBIT
System Software
1 25 (7.91%) HDFS
2 23 (7.28%) Apache Flume
3 22 (6.96%) Apache ZooKeeper
4 20 (6.33%) vCloud
5 7 (2.22%) Oracle RAC
6 3 (0.95%) VMware Infrastructure
7 2 (0.63%) vSphere
7 2 (0.63%) Docker
8 1 (0.32%) KVM
Systems Management
1 65 (20.57%) Opscode Chef
2 57 (18.04%) Puppet
3 44 (13.92%) Oozie
4 43 (13.61%) Nagios
5 32 (10.13%) ZABBIX
6 20 (6.33%) Ambari
7 19 (6.01%) Salt
7 19 (6.01%) Ansible
8 16 (5.06%) Zenoss
9 15 (4.75%) Cacti
9 15 (4.75%) Kibana
9 15 (4.75%) Graylog2
10 8 (2.53%) Opsview
11 7 (2.22%) collectd
12 2 (0.63%) Vagrant
12 2 (0.63%) Hadoop YARN
13 1 (0.32%) Chukwa
Vendors
1 34 (10.76%) Oracle
2 24 (7.59%) Netezza
3 21 (6.65%) Teradata
3 21 (6.65%) Rackspace
3 21 (6.65%) MapR
4 20 (6.33%) Hortonworks
5 17 (5.38%) Perforce
5 17 (5.38%) Red Hat
6 15 (4.75%) Splunk
7 12 (3.80%) VMware
7 12 (3.80%) JBoss
8 11 (3.48%) Sybase
8 11 (3.48%) Zend
9 10 (3.16%) Atlassian
10 8 (2.53%) Akamai
11 6 (1.90%) Microsoft
12 5 (1.58%) ION Trading
13 4 (1.27%) Google
13 4 (1.27%) Intel
13 4 (1.27%) Cisco
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