The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Apache Cassandra skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Apache Cassandra over the 3 months to 23 March 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
Apache Cassandra
London / City of London
Rank 112 73 174
Rank change year-on-year -39 +101  
Contract jobs citing Apache Cassandra 41 97 22
As % of all contract IT jobs advertised in the City of London 1.37% 2.95% 0.44%
As % of the Database & Business Intelligence category 5.14% 10.57% 1.76%
Number of daily rates quoted 40 93 19
Median daily rate £550 £525 £475
Median daily rate % change year-on-year +4.76% +10.52%  
90% offered a daily rate of more than £524 £500 £295
10% offered a daily rate of more than £650 £563 £590
UK excluding London median daily rate £484 £550 £600
% change year-on-year -12.04% -8.33%  
Number of hourly rates quoted 0 0 1
Median hourly rate - - £92.50
UK excluding London median hourly rate - - -

Apache Cassandra is in the database and business intelligence skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
City of London
Contract job vacancies with a requirement for database and business intelligence skills 797 918 1253
As % of all contract IT job vacancies advertised in the City of London 26.61% 27.92% 24.92%
Number of daily rates quoted 630 743 972
Median daily rate £488 £475 £450
Median daily rate % change year-on-year +2.63% +5.55%  
90% offered a daily rate of more than £350 £332 £310
10% offered a daily rate of more than £625 £600 £588
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.22% +3.33%  
Number of hourly rates quoted 1 6 5
Median hourly rate £22.34 £31.29 £36.00
Median hourly rate % change year-on-year -28.60% -13.09%  
UK excluding London median hourly rate £31.75 £32.50 £32.50
% change year-on-year -2.30% -  

Apache Cassandra
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Apache Cassandra as a proportion of all contract or permanent IT jobs with a match in the Database & Business Intelligence category.

Job vacancy trend for Apache Cassandra in the City of London

Apache Cassandra
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for Apache Cassandra in the City of London

Apache Cassandra
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Apache Cassandra in the City of London over the 3 months to 23 March 2017.

Contractor daily rate histogram for Apache Cassandra in the City of London

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

For the 6 months to 23 March 2017, IT contractor jobs citing Apache Cassandra also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for Apache Cassandra.

1 68 (69.39%) Java
2 56 (57.14%) Agile Software Development
3 52 (53.06%) TDD
3 52 (53.06%) NoSQL
4 45 (45.92%) Scala
5 41 (41.84%) Big Data
6 37 (37.76%) Apache Spark
7 33 (33.67%) Banking
8 31 (31.63%) BDD
9 30 (30.61%) DevOps
10 28 (28.57%) Microservices
11 27 (27.55%) Hadoop
11 27 (27.55%) Scrum
12 26 (26.53%) Linux
13 25 (25.51%) MongoDB
13 25 (25.51%) Kafka
14 24 (24.49%) JavaScript
14 24 (24.49%) Finance
15 23 (23.47%) Open Source
15 23 (23.47%) Akka
16 22 (22.45%) Spring
16 22 (22.45%) Software Engineering
17 21 (21.43%) REST
18 18 (18.37%) HBase
18 18 (18.37%) SQL
18 18 (18.37%) Unix
19 17 (17.35%) Continuous Integration
19 17 (17.35%) Kanban
20 16 (16.33%) Analytics
21 15 (15.31%) Python

Apache Cassandra
Top Related IT Skills in the City of 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 37 (37.76%) Apache Spark
2 15 (15.31%) Apache Pig
3 11 (11.22%) Apache
4 5 (5.10%) Confluence
5 4 (4.08%) Elasticsearch
5 4 (4.08%) nginx
6 2 (2.04%) Apache Solr
6 2 (2.04%) Jetty
7 1 (1.02%) JBoss
7 1 (1.02%) Jupyter
7 1 (1.02%) Oracle Coherence
7 1 (1.02%) Tomcat
7 1 (1.02%) WebLogic
7 1 (1.02%) WebSphere
Applications
1 1 (1.02%) MS Excel
1 1 (1.02%) SPSS
1 1 (1.02%) Weka
Business Applications
1 1 (1.02%) SAP Oil and Gas
Cloud Services
1 10 (10.20%) Amazon AWS
2 5 (5.10%) Slack
3 3 (3.06%) AWS CloudFormation
3 3 (3.06%) GitHub
3 3 (3.06%) Microsoft Azure
Communications & Networking
1 7 (7.14%) Firewall
2 5 (5.10%) HTTP
3 3 (3.06%) Network Security
4 1 (1.02%) F5 BIG-IP GTM
4 1 (1.02%) F5 BIG-IP LTM
4 1 (1.02%) Internet
4 1 (1.02%) NAS
4 1 (1.02%) SNMP
4 1 (1.02%) TCP/IP
Database & Business Intelligence
1 52 (53.06%) NoSQL
2 41 (41.84%) Big Data
3 27 (27.55%) Hadoop
4 25 (25.51%) MongoDB
5 18 (18.37%) HBase
6 13 (13.27%) Apache Hive
6 13 (13.27%) PostgreSQL
7 10 (10.20%) Data Lake
8 9 (9.18%) Neo4j
8 9 (9.18%) Relational Database
8 9 (9.18%) SQL Server
9 8 (8.16%) MySQL
10 7 (7.14%) Data Warehouse
11 6 (6.12%) RDBMS
12 5 (5.10%) Flink
13 2 (2.04%) Amazon DynamoDB
13 2 (2.04%) Data Mining
13 2 (2.04%) Redis
13 2 (2.04%) Sqoop
14 1 (1.02%) NewSQL
Development Applications
1 14 (14.29%) Jenkins
2 13 (13.27%) Git (software)
3 7 (7.14%) JUnit
4 6 (6.12%) JIRA
5 5 (5.10%) Cucumber
6 4 (4.08%) Jasmine
6 4 (4.08%) Subversion
7 3 (3.06%) Selenium
8 2 (2.04%) Gradle
8 2 (2.04%) IntelliJ
8 2 (2.04%) TeamCity
8 2 (2.04%) WebDriver
9 1 (1.02%) Capybara
9 1 (1.02%) EasyMock
9 1 (1.02%) Eclipse
9 1 (1.02%) Mockito
9 1 (1.02%) NUnit
9 1 (1.02%) SpecFlow
9 1 (1.02%) Team Foundation Server
9 1 (1.02%) Visual Studio
General
1 33 (33.67%) Banking
2 24 (24.49%) Finance
3 14 (14.29%) Investment Banking
4 13 (13.27%) Front Office
5 1 (1.02%) Billing
5 1 (1.02%) Electronics
5 1 (1.02%) Financial Institution
5 1 (1.02%) Manufacturing
5 1 (1.02%) Marketing
5 1 (1.02%) Retail
5 1 (1.02%) Telecoms
Job Titles
1 68 (69.39%) Developer
2 44 (44.90%) Java Developer
3 20 (20.41%) Scala Developer
4 17 (17.35%) Senior Developer
5 16 (16.33%) Senior Java Developer
6 8 (8.16%) DevOps Engineer
6 8 (8.16%) Market Risk Developer
6 8 (8.16%) Market Risk Java Developer
6 8 (8.16%) Senior Market Risk Java Developer
7 7 (7.14%) AWS Developer
7 7 (7.14%) AWS DevOps
8 6 (6.12%) Digital Developer
8 6 (6.12%) Java Scala Developer
8 6 (6.12%) Senior DevOps
9 5 (5.10%) Agile Developer
9 5 (5.10%) Architect
9 5 (5.10%) Big Data Developer
10 4 (4.08%) Agile Java Developer
10 4 (4.08%) Big Data Engineer
10 4 (4.08%) Data Engineer
Libraries, Frameworks & Software Standards
1 25 (25.51%) Kafka
2 23 (23.47%) Akka
3 22 (22.45%) Spring
4 21 (21.43%) REST
5 14 (14.29%) HTML
6 12 (12.24%) AngularJS
7 10 (10.20%) Node.js
8 9 (9.18%) CSS
8 9 (9.18%) HTML5
9 7 (7.14%) Apache Camel
10 6 (6.12%) CSS3
10 6 (6.12%) jQuery
10 6 (6.12%) Spring MVC
10 6 (6.12%) Twitter Bootstrap
10 6 (6.12%) WinForms
10 6 (6.12%) WPF
11 5 (5.10%) Dropwizard
11 5 (5.10%) Web Services
12 4 (4.08%) Hibernate
12 4 (4.08%) Play Framework
Miscellaneous
1 10 (10.20%) Client/Server
1 10 (10.20%) Derivative
1 10 (10.20%) Equities
2 9 (9.18%) Foreign Exchange (FX)
3 8 (8.16%) Market Risk
4 5 (5.10%) Algorithms
5 4 (4.08%) Data Centre
6 3 (3.06%) Public Cloud
7 2 (2.04%) Computer Science
8 1 (1.02%) Analytical Skills
8 1 (1.02%) Clustering
8 1 (1.02%) Credit Risk
8 1 (1.02%) Distributed Denial-of-Service
8 1 (1.02%) Embedded Systems
8 1 (1.02%) Enterprise Cloud
8 1 (1.02%) Fixed Income
8 1 (1.02%) Internet of Things
8 1 (1.02%) User Experience
Operating Systems
1 26 (26.53%) Linux
2 18 (18.37%) Unix
3 10 (10.20%) Android
3 10 (10.20%) Apple iOS
4 5 (5.10%) Red Hat Enterprise Linux
5 3 (3.06%) Debian
5 3 (3.06%) Mac OS X
5 3 (3.06%) Ubuntu
6 2 (2.04%) CentOS
7 1 (1.02%) Windows
Processes & Methodologies
1 56 (57.14%) Agile Software Development
2 52 (53.06%) TDD
3 31 (31.63%) BDD
4 30 (30.61%) DevOps
5 28 (28.57%) Microservices
6 27 (27.55%) Scrum
7 23 (23.47%) Open Source
8 22 (22.45%) Software Engineering
9 17 (17.35%) Continuous Integration
9 17 (17.35%) Kanban
10 16 (16.33%) Analytics
11 14 (14.29%) Mentoring
11 14 (14.29%) OO
12 11 (11.22%) Mathematics
13 10 (10.20%) Service Design
14 9 (9.18%) Configuration Management
14 9 (9.18%) Multithreading
14 9 (9.18%) MVC
14 9 (9.18%) Risk Management
15 8 (8.16%) Concurrent Programming
Programming Languages
1 68 (69.39%) Java
2 45 (45.92%) Scala
3 24 (24.49%) JavaScript
4 18 (18.37%) SQL
5 15 (15.31%) Python
6 9 (9.18%) C#
7 8 (8.16%) Haskell
8 6 (6.12%) Ruby
9 5 (5.10%) MATLAB
9 5 (5.10%) R
10 4 (4.08%) Kotlin
10 4 (4.08%) Perl
11 3 (3.06%) Bash Shell
11 3 (3.06%) PHP
12 2 (2.04%) CQL
13 1 (1.02%) Apple Swift
13 1 (1.02%) Groovy
13 1 (1.02%) Shell Script
13 1 (1.02%) WebLogic Scripting Tool
Qualifications
1 6 (6.12%) Degree
2 4 (4.08%) PhD
Quality Assurance & Compliance
1 6 (6.12%) QA
System Software
1 13 (13.27%) Docker
2 4 (4.08%) HDFS
3 3 (3.06%) Xen
4 2 (2.04%) Apache Flume
5 1 (1.02%) Apache ZooKeeper
Systems Management
1 15 (15.31%) Puppet
2 9 (9.18%) Opscode Chef
3 6 (6.12%) Hadoop YARN
4 3 (3.06%) Kibana
4 3 (3.06%) logstash
4 3 (3.06%) Nagios
5 2 (2.04%) Kubernetes
6 1 (1.02%) Ansible
6 1 (1.02%) Marathon
6 1 (1.02%) Mesos
6 1 (1.02%) Rancher
6 1 (1.02%) Tivoli
Vendors
1 6 (6.12%) Hortonworks
1 6 (6.12%) Red Hat
2 4 (4.08%) Oracle
3 3 (3.06%) Cisco
3 3 (3.06%) Citrix
3 3 (3.06%) Dell
3 3 (3.06%) SAP
3 3 (3.06%) Tableau
4 2 (2.04%) Cloudera
4 2 (2.04%) Microsoft
4 2 (2.04%) New Relic
4 2 (2.04%) Sybase
5 1 (1.02%) Apigee
5 1 (1.02%) BMC
5 1 (1.02%) F5
5 1 (1.02%) IBM
5 1 (1.02%) MapR
5 1 (1.02%) Splunk
5 1 (1.02%) Teradata
5 1 (1.02%) WorldPay
City of London
Arrows Group Ltd
Rate: £500 - £600 per day
Posted: 2 days ago
City, London
Careerwise UK Limited
Rate: £600 - £700 per day + negotiable
Posted: 15 hours ago
City, London
Intrinsic Recruitment Ltd
Rate: Up to £500 per day + Bonus & Benefits
Posted: 2 days ago