The following table provides summary statistics for contract job vacancies 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 25 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
25 Mar 2017
Same period 2016 Same period 2015
Apache Cassandra
UK
Rank 319 299 473
Rank change year-on-year -20 +174  
Contract jobs citing Apache Cassandra 305 404 151
As % of all contract IT jobs advertised in the UK 0.67% 0.76% 0.29%
As % of the Database & Business Intelligence category 2.96% 3.43% 1.27%
Number of daily rates quoted 250 340 122
Median daily rate £545 £525 £525
Median daily rate % change year-on-year +3.80% -  
90% offered a daily rate of more than £400 £431 £375
10% offered a daily rate of more than £675 £675 £675
UK excluding London median daily rate £488 £550 £600
% change year-on-year -11.36% -8.33%  
Number of hourly rates quoted 0 2 1
Median hourly rate - £50.00 £92.50
Median hourly rate % change year-on-year - -45.94%  
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 with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
UK
Contract job vacancies with a requirement for database and business intelligence skills 10310 11780 11881
As % of all contract IT job vacancies advertised in the UK 22.76% 22.14% 22.46%
Number of daily rates quoted 6977 7896 7584
Median daily rate £438 £425 £400
Median daily rate % change year-on-year +2.94% +6.25%  
90% offered a daily rate of more than £300 £300 £275
10% offered a daily rate of more than £600 £600 £550
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.22% +3.33%  
Number of hourly rates quoted 130 189 157
Median hourly rate £30.50 £32.50 £32.10
Median hourly rate % change year-on-year -6.15% +1.24%  
90% offered a hourly rate of more than £11.75 £14.50 £15.35
10% offered a hourly rate of more than £47.00 £60.62 £46.94
UK excluding London median hourly rate £31.00 £32.50 £32.50
% change year-on-year -4.61% -  

Apache Cassandra
Job Vacancy Trend

The job posting trend of jobs advertised 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 UK

Apache Cassandra
Contractor Daily Rate Trend

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

Contractor daily rate trend for Apache Cassandra in the UK

Apache Cassandra
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Apache Cassandra over the 3 months to 25 March 2017.

Contractor daily rate histogram for Apache Cassandra in the UK

Apache Cassandra
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing Apache Cassandra.

Contractor hourly rate trend for Apache Cassandra in the UK

Apache Cassandra
Top 30 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Apache Cassandra within the UK over the 3 months to 25 March 2017. 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 Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -27 298 £550 +4.76% 111
London -28 216 £550 +4.76% 74
City of London -42 41 £550 +4.76% 15
South East 0 19 £400 -27.27% 11
Yorkshire +6 18 £480 +1.05% 8
Leeds +4 18 £480 -12.72% 3
West Yorkshire +2 18 £480 +1.05% 3
South West +9 10 £495 +4.21% 5
North East -2 10 £481 -31.25% 4
West Midlands +16 8 £525 +16.66% 2
Buckinghamshire -1 8 £450 -
Newcastle upon Tyne -4 8 £488 -30.35% 1
Tyne and Wear -5 8 £488 -30.35% 1
East of England +4 7 £550 - 3
Milton Keynes +3 7 £450 -
Berkshire +27 6 £400 -15.78% 1
Dorset - 6 £510 - 2
Coventry - 6 £525 - 1
Hertfordshire - 6 £550 - 1
North West +19 5 £388 -39.92% 3
Bournemouth - 5 £510 - 2
Hatfield - 5 £550 - 1
Cheshire +27 4 £388 -4.32%
Surrey +8 3 £456 -23.95% 2
Newport - 3 £475 -
Midlands - 3 £600 -
South Wales - 3 £475 - 1
Edinburgh - 3 £475 - 3
Scotland - 3 £475 - 3
Wales - 3 £475 - 1

Apache Cassandra
Top 30 Related IT Skills

For the 6 months to 25 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 with a requirement for Apache Cassandra.

1 390 (60.56%) Java
2 346 (53.73%) NoSQL
3 330 (51.24%) Agile Software Development
4 299 (46.43%) MongoDB
5 257 (39.91%) Big Data
6 225 (34.94%) Scala
7 218 (33.85%) Hadoop
8 215 (33.39%) Apache Spark
9 204 (31.68%) TDD
10 193 (29.97%) Python
11 186 (28.88%) Linux
12 171 (26.55%) Kafka
13 165 (25.62%) DevOps
14 157 (24.38%) REST
15 155 (24.07%) Open Source
15 155 (24.07%) Scrum
16 150 (23.29%) MySQL
17 142 (22.05%) Amazon AWS
18 136 (21.12%) JavaScript
19 133 (20.65%) Microservices
20 130 (20.19%) Docker
21 125 (19.41%) Jenkins
21 125 (19.41%) PostgreSQL
22 124 (19.25%) HTML
23 120 (18.63%) Finance
23 120 (18.63%) Spring
24 117 (18.17%) BDD
24 117 (18.17%) HBase
25 113 (17.55%) Oracle
26 109 (16.93%) Apache Hive

Apache Cassandra
Top Related IT Skills 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
1 215 (33.39%) Apache Spark
2 73 (11.34%) Apache Pig
3 72 (11.18%) Apache
4 52 (8.07%) Elasticsearch
5 40 (6.21%) Apache Solr
6 34 (5.28%) Confluence
7 21 (3.26%) JBoss
8 20 (3.11%) Tomcat
9 17 (2.64%) nginx
9 17 (2.64%) OpenStack
10 9 (1.40%) Cloud Foundry
11 8 (1.24%) WebSphere
12 6 (0.93%) IIS
12 6 (0.93%) Jetty
12 6 (0.93%) Oracle SOA Suite
12 6 (0.93%) SAS
13 5 (0.78%) WebLogic
14 3 (0.47%) Jupyter
14 3 (0.47%) Mule
14 3 (0.47%) Mule ESB
Applications
1 10 (1.55%) MS Excel
2 4 (0.62%) GNU Octave
2 4 (0.62%) SPSS
3 3 (0.47%) Weka
4 1 (0.16%) MS Office
Business Applications
1 2 (0.31%) SAP Oil and Gas
Cloud Services
1 142 (22.05%) Amazon AWS
2 57 (8.85%) Microsoft Azure
3 36 (5.59%) Amazon EC2
4 23 (3.57%) Amazon S3
5 21 (3.26%) PaaS
6 18 (2.80%) IaaS
7 15 (2.33%) Cloud Computing
7 15 (2.33%) Twilio
8 13 (2.02%) Slack
9 12 (1.86%) Amazon SQS
10 11 (1.71%) GitHub
10 11 (1.71%) Google Cloud Platform
11 10 (1.55%) Amazon EMR
11 10 (1.55%) Loggly
12 8 (1.24%) Amazon Kinesis
12 8 (1.24%) SaaS
12 8 (1.24%) Sumo Logic
13 6 (0.93%) AWS CloudFormation
13 6 (0.93%) AWS Elastic Beanstalk
13 6 (0.93%) Virtual Private Cloud
Communications & Networking
1 29 (4.50%) HTTP
2 12 (1.86%) DNS
3 9 (1.40%) Internet
3 9 (1.40%) TCP/IP
4 8 (1.24%) Firewall
5 7 (1.09%) Kerberos
6 5 (0.78%) Network Security
7 4 (0.62%) LAN
7 4 (0.62%) Skype
7 4 (0.62%) SSL
7 4 (0.62%) VPN
7 4 (0.62%) WAN
8 3 (0.47%) AMQP
8 3 (0.47%) Intranet
9 2 (0.31%) LDAP
9 2 (0.31%) SNMP
10 1 (0.16%) CTI
10 1 (0.16%) F5 BIG-IP GTM
10 1 (0.16%) F5 BIG-IP LTM
10 1 (0.16%) SMPP
Database & Business Intelligence
1 346 (53.73%) NoSQL
2 299 (46.43%) MongoDB
3 257 (39.91%) Big Data
4 218 (33.85%) Hadoop
5 150 (23.29%) MySQL
6 125 (19.41%) PostgreSQL
7 117 (18.17%) HBase
8 109 (16.93%) Apache Hive
9 87 (13.51%) Relational Database
10 75 (11.65%) SQL Server
11 63 (9.78%) Data Warehouse
12 41 (6.37%) Neo4j
12 41 (6.37%) RDBMS
13 34 (5.28%) Sqoop
14 33 (5.12%) Data Lake
14 33 (5.12%) Redis
15 29 (4.50%) Riak
16 28 (4.35%) Impala
17 20 (3.11%) Data Mining
18 19 (2.95%) Amazon Redshift
Development Applications
1 125 (19.41%) Jenkins
2 88 (13.66%) Git (software)
3 47 (7.30%) Maven
4 42 (6.52%) JIRA
5 37 (5.75%) JUnit
6 29 (4.50%) Jasmine
7 19 (2.95%) Cucumber
8 18 (2.80%) Selenium
8 18 (2.80%) Vagrant
9 17 (2.64%) Talend Open Studio
10 16 (2.48%) Subversion
11 13 (2.02%) Atlassian Bamboo
12 12 (1.86%) Team Foundation Server
13 11 (1.71%) Grunt
13 11 (1.71%) SonarQube
14 10 (1.55%) Gradle
15 9 (1.40%) TeamCity
16 8 (1.24%) Artifactory
16 8 (1.24%) Bitbucket
16 8 (1.24%) Sonatype Nexus
General
1 120 (18.63%) Finance
2 94 (14.60%) Banking
3 26 (4.04%) Front Office
4 20 (3.11%) Investment Banking
5 12 (1.86%) Games
6 11 (1.71%) Retail
7 5 (0.78%) Aerospace
7 5 (0.78%) Law
8 4 (0.62%) Publishing
8 4 (0.62%) Telecoms
9 3 (0.47%) Marketing
10 2 (0.31%) Electronics
10 2 (0.31%) Financial Institution
10 2 (0.31%) Manufacturing
10 2 (0.31%) Retail Banking
10 2 (0.31%) Wholesale Banking
11 1 (0.16%) Advertising
11 1 (0.16%) Automotive
11 1 (0.16%) Billing
11 1 (0.16%) Multimedia
Job Titles
1 314 (48.76%) Developer
2 188 (29.19%) Java Developer
3 132 (20.50%) Architect
4 63 (9.78%) Senior Developer
5 55 (8.54%) Data Engineer
6 48 (7.45%) Big Data Engineer
7 45 (6.99%) Scala Developer
7 45 (6.99%) Senior Java Developer
8 44 (6.83%) Big Data Developer
8 44 (6.83%) Data Architect
9 41 (6.37%) Agile Developer
9 41 (6.37%) Technical Architect
10 40 (6.21%) DevOps Engineer
11 39 (6.06%) Agile Java Developer
12 30 (4.66%) Digital Architect
13 28 (4.35%) AWS DevOps
14 25 (3.88%) Big Data Architect
15 24 (3.73%) Software Engineer
15 24 (3.73%) Solutions Architect
16 23 (3.57%) Java Engineer
Libraries, Frameworks & Software Standards
1 171 (26.55%) Kafka
2 157 (24.38%) REST
3 124 (19.25%) HTML
4 120 (18.63%) Spring
5 108 (16.77%) CSS
6 101 (15.68%) HTML5
7 95 (14.75%) Web Services
8 89 (13.82%) JSON
9 85 (13.20%) AngularJS
10 74 (11.49%) Node.js
11 73 (11.34%) CSS3
12 70 (10.87%) Django
13 57 (8.85%) Play Framework
14 50 (7.76%) Akka
15 46 (7.14%) Ajax
16 44 (6.83%) Ruby on Rails
17 38 (5.90%) .NET
18 37 (5.75%) RESTful
19 32 (4.97%) Hibernate
20 30 (4.66%) SOAP
Miscellaneous
1 43 (6.68%) Algorithms
2 38 (5.90%) Analytical Skills
3 32 (4.97%) User Experience
4 19 (2.95%) Data Structures
5 16 (2.48%) Client/Server
5 16 (2.48%) Computer Science
5 16 (2.48%) Replication
6 14 (2.17%) Foreign Exchange (FX)
7 13 (2.02%) Management Information System
8 12 (1.86%) Derivative
9 11 (1.71%) Equities
10 10 (1.55%) Data Centre
11 9 (1.40%) Fintech
12 8 (1.24%) Market Risk
13 7 (1.09%) Clustering
13 7 (1.09%) Fixed Income
13 7 (1.09%) Grid Computing
13 7 (1.09%) Mobile Games
13 7 (1.09%) Online Games
14 6 (0.93%) Enterprise Software
Operating Systems
1 186 (28.88%) Linux
2 72 (11.18%) Unix
3 42 (6.52%) Red Hat Enterprise Linux
4 26 (4.04%) CentOS
5 25 (3.88%) Windows
6 24 (3.73%) Android
7 21 (3.26%) Apple iOS
8 13 (2.02%) CoreOS
9 8 (1.24%) Mac OS X
10 7 (1.09%) Ubuntu
11 4 (0.62%) Debian
11 4 (0.62%) Solaris
12 1 (0.16%) Mesosphere
12 1 (0.16%) Windows Server
12 1 (0.16%) Windows Server 2012
Processes & Methodologies
1 330 (51.24%) Agile Software Development
2 204 (31.68%) TDD
3 165 (25.62%) DevOps
4 155 (24.07%) Open Source
4 155 (24.07%) Scrum
5 133 (20.65%) Microservices
6 117 (18.17%) BDD
7 103 (15.99%) Software Engineering
8 102 (15.84%) Kanban
9 89 (13.82%) Analytics
10 83 (12.89%) Continuous Integration
11 73 (11.34%) Configuration Management
12 61 (9.47%) Mentoring
13 58 (9.01%) OO
14 54 (8.39%) Machine Learning
15 50 (7.76%) MapReduce
16 44 (6.83%) Data Modelling
17 41 (6.37%) ETL
18 40 (6.21%) Continuous Delivery
19 35 (5.43%) Mathematics
Programming Languages
1 390 (60.56%) Java
2 225 (34.94%) Scala
3 193 (29.97%) Python
4 136 (21.12%) JavaScript
5 105 (16.30%) SQL
6 83 (12.89%) Ruby
7 67 (10.40%) R
8 57 (8.85%) C#
9 36 (5.59%) Bash Shell
10 33 (5.12%) Perl
11 19 (2.95%) C++
12 18 (2.80%) PHP
13 15 (2.33%) Go
14 14 (2.17%) Haskell
15 13 (2.02%) CQL
16 12 (1.86%) Clojure
16 12 (1.86%) MATLAB
17 11 (1.71%) Groovy
17 11 (1.71%) PowerShell
18 10 (1.55%) Shell Script
Qualifications
1 47 (7.30%) Degree
2 11 (1.71%) Security Cleared
3 10 (1.55%) PhD
4 9 (1.40%) BPSS Clearance
5 2 (0.31%) CESG Certified Professional
5 2 (0.31%) DV Cleared
6 1 (0.16%) CISA
6 1 (0.16%) CISM
6 1 (0.16%) CISSP
6 1 (0.16%) GSEC
6 1 (0.16%) SC Cleared
Quality Assurance & Compliance
1 20 (3.11%) QA
2 8 (1.24%) Data Quality
3 7 (1.09%) Disclosure Scotland
4 1 (0.16%) Sarbanes-Oxley
4 1 (0.16%) SLA
System Software
1 130 (20.19%) Docker
2 48 (7.45%) HDFS
3 41 (6.37%) Apache Flume
4 16 (2.48%) LXC
5 15 (2.33%) Apache ZooKeeper
6 9 (1.40%) VirtualBox
7 7 (1.09%) VMware Infrastructure
8 5 (0.78%) Oracle RAC
9 4 (0.62%) vSphere
9 4 (0.62%) Xen
10 1 (0.16%) Active Directory
10 1 (0.16%) Ceph
10 1 (0.16%) Firmware
10 1 (0.16%) KVM
10 1 (0.16%) Postfix
Systems Management
1 88 (13.66%) Puppet
2 73 (11.34%) Ansible
2 73 (11.34%) Opscode Chef
3 42 (6.52%) Hadoop YARN
4 30 (4.66%) Oozie
5 27 (4.19%) Kubernetes
6 22 (3.42%) Nagios
7 14 (2.17%) Terraform
8 11 (1.71%) ZABBIX
9 10 (1.55%) Mesos
10 9 (1.40%) Ambari
10 9 (1.40%) Salt
11 5 (0.78%) Kibana
11 5 (0.78%) logstash
12 4 (0.62%) FreeIPA
12 4 (0.62%) Marathon
12 4 (0.62%) OSSEC
13 3 (0.47%) Control-M
13 3 (0.47%) rkt
13 3 (0.47%) Unicenter
Vendors
1 113 (17.55%) Oracle
2 45 (6.99%) Red Hat
3 35 (5.43%) Microsoft
4 28 (4.35%) Hortonworks
5 27 (4.19%) Tableau
6 23 (3.57%) Cloudera
7 18 (2.80%) New Relic
8 17 (2.64%) SAP
8 17 (2.64%) Talend
9 16 (2.48%) Splunk
9 16 (2.48%) Sybase
10 13 (2.02%) Google
11 12 (1.86%) Informatica
12 11 (1.71%) MapR
13 10 (1.55%) MuleSoft
14 9 (1.40%) hybris
14 9 (1.40%) SaltStack
15 8 (1.24%) Cognos
15 8 (1.24%) Rackspace
15 8 (1.24%) Teradata
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