The following table provides summary statistics for contract job vacancies advertised in England 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 28 June 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.

Apache Cassandra
UK / England
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 262 338 433
Rank change year-on-year +76 +95  
Contract jobs citing Apache Cassandra 386 305 193
As % of all contract IT jobs advertised in England 0.89% 0.62% 0.38%
As % of the Database & Business Intelligence category 3.99% 2.83% 1.62%
Number of daily rates quoted 281 224 141
Median daily rate £538 £518 £500
Median daily rate % change year-on-year +3.86% +3.50%  
90% offered a daily rate of more than £406 £373 £375
10% offered a daily rate of more than £663 £667 £675
UK excluding London median daily rate £475 £425 £525
% change year-on-year +11.76% -19.04%  
Number of hourly rates quoted 0 2 0
Median hourly rate - £55.00 -
UK excluding London median hourly rate - £55.00 -

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 England with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
England
Contract job vacancies with a requirement for database and business intelligence skills 9673 10772 11887
As % of all contract IT job vacancies advertised in England 22.38% 21.78% 23.67%
Number of daily rates quoted 14236 16294 18356
Median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25%  
90% offered a daily rate of more than £313 £300 £269
10% offered a daily rate of more than £625 £600 £575
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 214 287 320
Median hourly rate £31.00 £31.00 £26.00
Median hourly rate % change year-on-year - +19.23%  
90% offered a hourly rate of more than £12.00 £12.25 £15.06
10% offered a hourly rate of more than £50.00 £51.00 £52.17
UK excluding London median hourly rate £38.00 £31.95 £26.00
% change year-on-year +18.93% +22.88%  

Apache Cassandra
Job Vacancy Trend in England

Job postings citing Apache Cassandra as a percentage of all IT jobs advertised in England.

Job vacancy trend for Apache Cassandra in England

Apache Cassandra
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for Apache Cassandra in England

Apache Cassandra
Contractor Daily Rate Histogram in England

The daily rate distribution of IT jobs citing Apache Cassandra in England over the 3 months to 28 June 2017.

Contractor daily rate histogram for Apache Cassandra in England

Apache Cassandra
Contractor Hourly Rate Trend in England

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

Contractor hourly rate trend for Apache Cassandra in England

Apache Cassandra
Contract Job Locations in England

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 England region over the 3 months to 28 June 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
London +31 235 £550 +4.76% 75
South East +47 68 £478 +12.35% 9
North of England +62 42 £475 +17.86% 11
Midlands +34 20 £475 +11.76% 3
Yorkshire +16 17 £430 +7.50% 2
North West +22 16 £543 +40.90% 9
East of England - 14 £550 - 5
West Midlands +36 13 £503 -3.13% 3
North East +81 10 £475 -
East Midlands -4 7 £365 -14.11%
South West -4 7 £413 -4.62% 5
Apache Cassandra
UK

For the 6 months to 28 June 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 England region with a requirement for Apache Cassandra.

1 413 (60.56%) Java
2 357 (52.35%) Agile Software Development
3 320 (46.92%) NoSQL
4 276 (40.47%) MongoDB
5 244 (35.78%) Linux
6 237 (34.75%) Big Data
7 226 (33.14%) Python
8 216 (31.67%) Scala
9 215 (31.52%) TDD
10 212 (31.09%) Hadoop
11 207 (30.35%) Apache Spark
12 199 (29.18%) DevOps
13 185 (27.13%) Kafka
14 169 (24.78%) Amazon AWS
15 161 (23.61%) Microservices
16 160 (23.46%) Docker
17 159 (23.31%) MySQL
18 155 (22.73%) Jenkins
19 150 (21.99%) SQL
20 138 (20.23%) Spring
21 135 (19.79%) Git (software)
22 132 (19.35%) Open Source
23 131 (19.21%) Scrum
24 128 (18.77%) Oracle
25 123 (18.04%) REST
26 120 (17.60%) Puppet
27 117 (17.16%) Software Engineering
28 115 (16.86%) Finance
29 101 (14.81%) Elasticsearch
29 101 (14.81%) Opscode Chef

Apache Cassandra
Co-occurring IT Skills in England 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
1 207 (30.35%) Apache Spark
2 101 (14.81%) Elasticsearch
3 80 (11.73%) Apache
4 51 (7.48%) Apache Pig
5 41 (6.01%) Confluence
6 31 (4.55%) Apache Solr
7 24 (3.52%) OpenStack
8 22 (3.23%) nginx
9 20 (2.93%) Tomcat
10 15 (2.20%) JBoss
11 12 (1.76%) Oracle SOA Suite
12 8 (1.17%) Oracle Coherence
13 7 (1.03%) GlassFish
14 6 (0.88%) SAS
15 5 (0.73%) DataSynapse
15 5 (0.73%) WildFly
16 4 (0.59%) CMS
16 4 (0.59%) WebLogic
16 4 (0.59%) WebSphere
17 3 (0.44%) Drupal
Applications
1 4 (0.59%) GNU Octave
2 3 (0.44%) Weka
3 2 (0.29%) SPSS
Business Applications
1 2 (0.29%) Siebel CRM
2 1 (0.15%) BASE24
2 1 (0.15%) SAP Oil and Gas
Cloud Services
1 169 (24.78%) Amazon AWS
2 45 (6.60%) Amazon EC2
3 36 (5.28%) Microsoft Azure
4 25 (3.67%) Twilio
5 22 (3.23%) Slack
6 20 (2.93%) Amazon SQS
7 19 (2.79%) Amazon S3
8 16 (2.35%) OpenShift
9 14 (2.05%) Amazon EMR
10 13 (1.91%) Google Cloud Platform
11 10 (1.47%) Cloud Computing
12 9 (1.32%) PaaS
12 9 (1.32%) SaaS
13 8 (1.17%) GitHub
14 6 (0.88%) Akamai
14 6 (0.88%) IaaS
14 6 (0.88%) Loggly
15 4 (0.59%) Sumo Logic
16 3 (0.44%) AWS CloudFormation
16 3 (0.44%) SoftLayer
Communications & Networking
1 45 (6.60%) HTTP
2 28 (4.11%) DNS
3 26 (3.81%) Firewall
4 20 (2.93%) TCP/IP
5 14 (2.05%) LAN
5 14 (2.05%) WAN
6 13 (1.91%) SSL
7 12 (1.76%) HTTPS
8 8 (1.17%) LDAP
9 6 (0.88%) Internet
10 5 (0.73%) Kerberos
11 4 (0.59%) AMQP
11 4 (0.59%) Skype
11 4 (0.59%) tcpdump
11 4 (0.59%) VPN
11 4 (0.59%) Wireshark
12 3 (0.44%) Intranet
13 2 (0.29%) Network Security
13 2 (0.29%) SSH
14 1 (0.15%) NAS
Database & Business Intelligence
1 320 (46.92%) NoSQL
2 276 (40.47%) MongoDB
3 237 (34.75%) Big Data
4 212 (31.09%) Hadoop
5 159 (23.31%) MySQL
6 96 (14.08%) PostgreSQL
7 90 (13.20%) HBase
8 84 (12.32%) Apache Hive
9 63 (9.24%) SQL Server
10 59 (8.65%) Relational Database
11 43 (6.30%) Data Warehouse
12 35 (5.13%) Sqoop
13 33 (4.84%) RDBMS
14 27 (3.96%) Amazon DynamoDB
15 26 (3.81%) Redis
16 23 (3.37%) Neo4j
17 20 (2.93%) Impala
18 18 (2.64%) CouchDB
19 15 (2.20%) Couchbase
19 15 (2.20%) DB2
Development Applications
1 155 (22.73%) Jenkins
2 135 (19.79%) Git (software)
3 62 (9.09%) Maven
4 60 (8.80%) JIRA
5 42 (6.16%) JUnit
6 25 (3.67%) Jasmine
7 19 (2.79%) Cucumber
8 18 (2.64%) Hudson
9 17 (2.49%) Subversion
10 16 (2.35%) Bitbucket
11 15 (2.20%) GitLab
12 14 (2.05%) Atlassian Bamboo
12 14 (2.05%) Mockito
13 13 (1.91%) Gradle
13 13 (1.91%) TeamCity
14 12 (1.76%) Selenium
15 11 (1.61%) Vagrant
16 10 (1.47%) SonarQube
17 9 (1.32%) Eclipse
17 9 (1.32%) JMeter
General
1 115 (16.86%) Finance
2 66 (9.68%) Banking
3 15 (2.20%) Games
4 12 (1.76%) Front Office
5 10 (1.47%) Investment Banking
6 6 (0.88%) Advertising
6 6 (0.88%) Telecoms
7 5 (0.73%) Law
7 5 (0.73%) Retail
8 2 (0.29%) Back Office
8 2 (0.29%) Publishing
8 2 (0.29%) Wholesale Banking
9 1 (0.15%) Billing
9 1 (0.15%) Electronics
9 1 (0.15%) Financial Institution
9 1 (0.15%) Hungarian Language
9 1 (0.15%) Legal
9 1 (0.15%) Manufacturing
9 1 (0.15%) Marketing
9 1 (0.15%) Spanish Language
Job Titles
1 330 (48.39%) Developer
2 195 (28.59%) Java Developer
3 98 (14.37%) Architect
4 67 (9.82%) Senior Developer
5 66 (9.68%) DevOps Engineer
6 59 (8.65%) Big Data Developer
7 57 (8.36%) Scala Developer
8 50 (7.33%) Data Engineer
9 41 (6.01%) AWS Developer
10 39 (5.72%) Big Data Engineer
10 39 (5.72%) Senior Java Developer
11 38 (5.57%) AWS DevOps
12 34 (4.99%) AWS Engineer
13 31 (4.55%) DBA
14 30 (4.40%) Cassandra Developer
15 28 (4.11%) Agile Developer
15 28 (4.11%) Hadoop Developer
15 28 (4.11%) Technical Architect
16 27 (3.96%) Data Architect
17 25 (3.67%) Java Engineer
Libraries, Frameworks & Software Standards
1 185 (27.13%) Kafka
2 138 (20.23%) Spring
3 123 (18.04%) REST
4 95 (13.93%) Web Services
5 83 (12.17%) HTML
6 73 (10.70%) JSON
7 71 (10.41%) Node.js
8 69 (10.12%) CSS
9 62 (9.09%) HTML5
10 56 (8.21%) RESTful
11 54 (7.92%) Django
11 54 (7.92%) Spring Boot
12 53 (7.77%) Akka
13 52 (7.62%) Play Framework
14 51 (7.48%) Ajax
15 48 (7.04%) Elastic Stack
16 46 (6.74%) CSS3
17 35 (5.13%) AngularJS
17 35 (5.13%) Hibernate
18 29 (4.25%) Spark Streaming
Miscellaneous
1 61 (8.94%) Greenfield Project
2 37 (5.43%) Algorithms
3 34 (4.99%) Client/Server
4 31 (4.55%) User Experience
5 27 (3.96%) Analytical Skills
6 23 (3.37%) Computer Science
7 18 (2.64%) Replication
7 18 (2.64%) Video on Demand
8 17 (2.49%) Clustering
9 16 (2.35%) Fintech
10 14 (2.05%) Enterprise Software
11 12 (1.76%) Data Structures
11 12 (1.76%) Fixed Income
11 12 (1.76%) Grid Computing
11 12 (1.76%) Management Information System
11 12 (1.76%) Mobile App
12 10 (1.47%) Derivative
13 9 (1.32%) Foreign Exchange (FX)
13 9 (1.32%) Linux Command Line
14 8 (1.17%) DataPower
Operating Systems
1 244 (35.78%) Linux
2 91 (13.34%) Unix
3 40 (5.87%) Red Hat Enterprise Linux
4 39 (5.72%) CentOS
5 33 (4.84%) Windows
6 20 (2.93%) Android
7 16 (2.35%) Apple iOS
8 12 (1.76%) Ubuntu
9 9 (1.32%) Mac OS X
9 9 (1.32%) Windows Server
10 2 (0.29%) CoreOS
11 1 (0.15%) Debian
11 1 (0.15%) Mesosphere
11 1 (0.15%) Solaris
11 1 (0.15%) Windows Server 2012
Processes & Methodologies
1 357 (52.35%) Agile Software Development
2 215 (31.52%) TDD
3 199 (29.18%) DevOps
4 161 (23.61%) Microservices
5 132 (19.35%) Open Source
6 131 (19.21%) Scrum
7 117 (17.16%) Software Engineering
8 99 (14.52%) Analytics
9 97 (14.22%) BDD
9 97 (14.22%) Continuous Integration
10 75 (11.00%) Kanban
11 70 (10.26%) Configuration Management
12 69 (10.12%) Mentoring
13 64 (9.38%) OO
14 61 (8.94%) Machine Learning
15 55 (8.06%) Continuous Delivery
16 49 (7.18%) MapReduce
17 46 (6.74%) Test Automation
18 39 (5.72%) Data Modelling
19 31 (4.55%) Data Analytics
Programming Languages
1 413 (60.56%) Java
2 226 (33.14%) Python
3 216 (31.67%) Scala
4 150 (21.99%) SQL
5 97 (14.22%) JavaScript
6 63 (9.24%) Ruby
7 61 (8.94%) Bash Shell
8 48 (7.04%) Perl
9 36 (5.28%) C#
10 34 (4.99%) R
11 32 (4.69%) Shell Script
12 25 (3.67%) PHP
13 18 (2.64%) C++
14 17 (2.49%) Go
15 15 (2.20%) CQL
15 15 (2.20%) Groovy
16 11 (1.61%) PL/SQL
17 8 (1.17%) Clojure
18 7 (1.03%) Kotlin
18 7 (1.03%) SPARQL
Qualifications
1 48 (7.04%) Degree
2 17 (2.49%) Master's Degree
3 9 (1.32%) Computer Science Degree
4 8 (1.17%) Numerate Degree
5 6 (0.88%) PhD
6 5 (0.73%) CISM
6 5 (0.73%) CISSP
6 5 (0.73%) MySQL Certification
7 4 (0.59%) Cisco Certification
8 3 (0.44%) CCNA
8 3 (0.44%) CCSA
8 3 (0.44%) JNCIA
8 3 (0.44%) Security Cleared
9 2 (0.29%) BPSS Clearance
10 1 (0.15%) AWS Certification
10 1 (0.15%) CCDP
10 1 (0.15%) Chartered Engineer
10 1 (0.15%) GSEC
10 1 (0.15%) ITIL Certification
10 1 (0.15%) SC Cleared
Quality Assurance & Compliance
1 25 (3.67%) QA
2 6 (0.88%) Data Quality
3 3 (0.44%) MiFID
3 3 (0.44%) SLA
4 2 (0.29%) GCP
5 1 (0.15%) COBIT
5 1 (0.15%) ISO/IEC 27001
5 1 (0.15%) Sarbanes-Oxley
5 1 (0.15%) WCAG
System Software
1 160 (23.46%) Docker
2 46 (6.74%) HDFS
3 32 (4.69%) Apache Flume
4 23 (3.37%) Xen
5 19 (2.79%) VMware Infrastructure
6 18 (2.64%) Apache ZooKeeper
7 17 (2.49%) KVM
8 14 (2.05%) LXC
9 7 (1.03%) Platform Symphony
10 4 (0.59%) vSphere
11 3 (0.44%) Oracle RAC
12 2 (0.29%) zsh
13 1 (0.15%) Firmware
13 1 (0.15%) Hyper-V
13 1 (0.15%) Postfix
13 1 (0.15%) Virtual Machines
13 1 (0.15%) VirtualBox
Systems Management
1 120 (17.60%) Puppet
2 101 (14.81%) Opscode Chef
3 93 (13.64%) Ansible
4 58 (8.50%) Kubernetes
5 35 (5.13%) Hadoop YARN
6 31 (4.55%) logstash
7 29 (4.25%) Grafana
8 27 (3.96%) Terraform
9 22 (3.23%) Nagios
10 21 (3.08%) Kibana
10 21 (3.08%) Oozie
11 15 (2.20%) ZABBIX
12 13 (1.91%) Mesos
13 12 (1.76%) Graphite
14 9 (1.32%) Marathon
14 9 (1.32%) Rancher
15 8 (1.17%) Prometheus
15 8 (1.17%) Salt
16 7 (1.03%) Galera Cluster
16 7 (1.03%) HP SiteScope
Vendors
1 128 (18.77%) Oracle
2 55 (8.06%) Red Hat
3 41 (6.01%) Splunk
4 25 (3.67%) Cloudera
4 25 (3.67%) Microsoft
5 24 (3.52%) VMware
6 20 (2.93%) SaltStack
7 18 (2.64%) IBM
8 17 (2.49%) Sybase
9 12 (1.76%) Google
9 12 (1.76%) Hortonworks
10 11 (1.61%) Dynatrace
11 10 (1.47%) AppDynamics
11 10 (1.47%) Pega
12 9 (1.32%) Informatica
12 9 (1.32%) Teradata
13 8 (1.17%) SAP
13 8 (1.17%) WSO2
14 7 (1.03%) HP
14 7 (1.03%) Percona
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