The following table provides summary statistics for contract job vacancies advertised in 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 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
England / London
3 months to
23 Jun 2017
Same period 2016 Same period 2015
Rank 222 234 309
Rank change year-on-year +12 +75  
Contract jobs citing Apache Cassandra 223 205 115
As % of all contract IT jobs advertised in London 1.08% 0.95% 0.49%
As % of the Database & Business Intelligence category 4.53% 4.15% 2.06%
Number of daily rates quoted 176 170 87
Median daily rate £550 £525 £500
Median daily rate % change year-on-year +4.76% +5.00%  
90% offered a daily rate of more than £450 £425 £383
10% offered a daily rate of more than £650 £638 £600
UK excluding London median daily rate £475 £425 £525
% change year-on-year +11.76% -19.04%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
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 London with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
London
Contract job vacancies with a requirement for database and business intelligence skills 4922 4937 5577
As % of all contract IT job vacancies advertised in London 23.80% 22.82% 23.80%
Number of daily rates quoted 3577 3645 3918
Median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.55%  
90% offered a daily rate of more than £365 £335 £300
10% offered a daily rate of more than £625 £625 £600
UK excluding London median daily rate £400 £388 £350
% change year-on-year +3.22% +10.71%  
Number of hourly rates quoted 30 21 51
Median hourly rate £24.66 £35.00 £27.78
Median hourly rate % change year-on-year -29.54% +25.98%  
90% offered a hourly rate of more than £21.33 £16.75 £15.58
10% offered a hourly rate of more than £43.43 £100.00 £55.00
UK excluding London median hourly rate £38.00 £30.35 £26.00
% change year-on-year +25.19% +16.74%  

Apache Cassandra
Job Vacancy Trend in London

The job posting trend of jobs advertised in 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 London

Apache Cassandra
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Apache Cassandra in London

Apache Cassandra
Contractor Daily Rate Histogram in London

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

Contractor daily rate histogram for Apache Cassandra in London

Apache Cassandra
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for Apache Cassandra in London

Apache Cassandra
Contract Job Locations in London

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 London region over the 3 months to 23 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
City of London +8 52 £575 +8.23% 22
Twickenham - 2 £475 -
Canary Wharf +1 1 £750 -
Heathrow - 1 £425 -
Docklands, London - 1 £471 -
Apache Cassandra
England

For the 6 months to 23 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 London region with a requirement for Apache Cassandra.

1 300 (68.81%) Java
2 214 (49.08%) Agile Software Development
3 209 (47.94%) NoSQL
4 184 (42.20%) Big Data
5 169 (38.76%) Hadoop
6 166 (38.07%) Apache Spark
7 160 (36.70%) Kafka
8 144 (33.03%) Scala
9 133 (30.50%) MongoDB
10 131 (30.05%) TDD
11 127 (29.13%) DevOps
12 125 (28.67%) Python
13 118 (27.06%) Linux
13 118 (27.06%) Microservices
14 104 (23.85%) Amazon AWS
15 100 (22.94%) Docker
16 88 (20.18%) SQL
17 83 (19.04%) Elasticsearch
18 82 (18.81%) Analytics
18 82 (18.81%) Spring
19 79 (18.12%) Finance
19 79 (18.12%) BDD
20 78 (17.89%) Jenkins
21 75 (17.20%) HBase
22 73 (16.74%) Oracle
23 70 (16.06%) Unix
23 70 (16.06%) Apache
23 70 (16.06%) Apache Hive
24 69 (15.83%) Open Source
24 69 (15.83%) Scrum

Apache Cassandra
Co-occurring IT Skills in 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
1 166 (38.07%) Apache Spark
2 83 (19.04%) Elasticsearch
3 70 (16.06%) Apache
4 41 (9.40%) Apache Pig
5 22 (5.05%) Apache Solr
6 13 (2.98%) Tomcat
7 12 (2.75%) Confluence
8 8 (1.83%) nginx
8 8 (1.83%) Oracle Coherence
9 5 (1.15%) DataSynapse
9 5 (1.15%) JBoss
9 5 (1.15%) OpenStack
10 4 (0.92%) Oracle SOA Suite
11 3 (0.69%) SAS
12 2 (0.46%) CMS
12 2 (0.46%) Drupal
12 2 (0.46%) GemFire
12 2 (0.46%) GlassFish
12 2 (0.46%) Jetty
12 2 (0.46%) WebLogic
Applications
1 3 (0.69%) GNU Octave
1 3 (0.69%) Weka
2 2 (0.46%) SPSS
Business Applications
1 2 (0.46%) Siebel CRM
2 1 (0.23%) BASE24
Cloud Services
1 104 (23.85%) Amazon AWS
2 41 (9.40%) Amazon EC2
3 25 (5.73%) Twilio
4 19 (4.36%) Amazon SQS
5 18 (4.13%) Amazon S3
5 18 (4.13%) Microsoft Azure
6 13 (2.98%) Amazon EMR
7 7 (1.61%) PaaS
8 6 (1.38%) Akamai
8 6 (1.38%) Cloud Computing
9 5 (1.15%) Google Cloud Platform
9 5 (1.15%) OpenShift
9 5 (1.15%) Slack
10 4 (0.92%) GitHub
11 3 (0.69%) AWS CloudFormation
12 2 (0.46%) Amazon Kinesis
12 2 (0.46%) AWS Elastic Beanstalk
12 2 (0.46%) Loggly
12 2 (0.46%) Virtual Private Cloud
13 1 (0.23%) IaaS
Communications & Networking
1 23 (5.28%) HTTP
2 12 (2.75%) DNS
3 11 (2.52%) Firewall
4 8 (1.83%) LDAP
5 7 (1.61%) TCP/IP
6 5 (1.15%) Kerberos
7 4 (0.92%) Skype
7 4 (0.92%) tcpdump
7 4 (0.92%) VPN
7 4 (0.92%) Wireshark
8 3 (0.69%) LAN
8 3 (0.69%) WAN
9 2 (0.46%) Internet
10 1 (0.23%) F5 BIG-IP GTM
10 1 (0.23%) F5 BIG-IP LTM
10 1 (0.23%) HTTPS
10 1 (0.23%) NAS
10 1 (0.23%) Network Security
10 1 (0.23%) SSL
10 1 (0.23%) ZigBee
Database & Business Intelligence
1 209 (47.94%) NoSQL
2 184 (42.20%) Big Data
3 169 (38.76%) Hadoop
4 133 (30.50%) MongoDB
5 75 (17.20%) HBase
6 70 (16.06%) Apache Hive
7 52 (11.93%) MySQL
8 48 (11.01%) Relational Database
8 48 (11.01%) SQL Server
9 32 (7.34%) Data Warehouse
10 30 (6.88%) RDBMS
11 22 (5.05%) PostgreSQL
11 22 (5.05%) Sqoop
12 21 (4.82%) Amazon DynamoDB
13 19 (4.36%) Neo4j
14 14 (3.21%) CouchDB
15 12 (2.75%) Data Mining
15 12 (2.75%) RethinkDB
16 11 (2.52%) Apache Zeppelin
16 11 (2.52%) Flink
Development Applications
1 78 (17.89%) Jenkins
2 66 (15.14%) Git (software)
3 47 (10.78%) Maven
4 27 (6.19%) JIRA
5 16 (3.67%) JUnit
6 15 (3.44%) Bitbucket
6 15 (3.44%) Subversion
7 14 (3.21%) Atlassian Bamboo
8 11 (2.52%) Gradle
8 11 (2.52%) Mockito
8 11 (2.52%) TeamCity
9 10 (2.29%) Jasmine
10 9 (2.06%) Hudson
10 9 (2.06%) JMeter
11 8 (1.83%) Cucumber
11 8 (1.83%) LoadRunner
12 7 (1.61%) Ant
12 7 (1.61%) Fiddler
12 7 (1.61%) Log4j
12 7 (1.61%) YourKit
General
1 79 (18.12%) Finance
2 49 (11.24%) Banking
3 13 (2.98%) Games
4 12 (2.75%) Front Office
5 9 (2.06%) Investment Banking
6 5 (1.15%) Advertising
6 5 (1.15%) Retail
7 4 (0.92%) Law
8 3 (0.69%) Telecoms
9 2 (0.46%) Publishing
10 1 (0.23%) Legal
Job Titles
1 253 (58.03%) Developer
2 151 (34.63%) Java Developer
3 52 (11.93%) Scala Developer
4 49 (11.24%) Big Data Developer
5 48 (11.01%) Senior Developer
6 45 (10.32%) Architect
6 45 (10.32%) Data Engineer
7 36 (8.26%) AWS Developer
8 35 (8.03%) Big Data Engineer
8 35 (8.03%) DevOps Engineer
9 28 (6.42%) AWS DevOps
9 28 (6.42%) Cassandra Developer
10 27 (6.19%) Senior Java Developer
11 26 (5.96%) Hadoop Developer
12 24 (5.50%) AWS Engineer
13 21 (4.82%) Agile Developer
13 21 (4.82%) Java Hadoop Developer
14 19 (4.36%) Agile Java Developer
14 19 (4.36%) Python Developer
15 18 (4.13%) Apache Spark Developer
Libraries, Frameworks & Software Standards
1 160 (36.70%) Kafka
2 82 (18.81%) Spring
3 58 (13.30%) REST
3 58 (13.30%) Web Services
4 45 (10.32%) Akka
5 41 (9.40%) Spring Boot
6 40 (9.17%) Node.js
7 36 (8.26%) RESTful
8 35 (8.03%) HTML
9 27 (6.19%) JSON
10 26 (5.96%) Swagger
11 24 (5.50%) Elastic Stack
12 21 (4.82%) CSS
13 20 (4.59%) Ajax
13 20 (4.59%) AngularJS
13 20 (4.59%) HTML5
14 18 (4.13%) Play Framework
15 17 (3.90%) React
15 17 (3.90%) Spark Streaming
15 17 (3.90%) XML
Miscellaneous
1 54 (12.39%) Greenfield Project
2 33 (7.57%) Algorithms
3 23 (5.28%) Client/Server
4 22 (5.05%) Analytical Skills
5 18 (4.13%) Computer Science
6 17 (3.90%) User Experience
7 15 (3.44%) Fintech
8 13 (2.98%) Fixed Income
9 12 (2.75%) Grid Computing
10 10 (2.29%) Derivative
11 9 (2.06%) Foreign Exchange (FX)
12 8 (1.83%) Data Structures
12 8 (1.83%) Enterprise Software
13 7 (1.61%) Mobile App
14 6 (1.38%) Credit Risk
14 6 (1.38%) Equities
14 6 (1.38%) Management Information System
14 6 (1.38%) Public Cloud
14 6 (1.38%) Replication
14 6 (1.38%) Tandem
Operating Systems
1 118 (27.06%) Linux
2 70 (16.06%) Unix
3 26 (5.96%) Windows
4 23 (5.28%) CentOS
5 11 (2.52%) Red Hat Enterprise Linux
6 8 (1.83%) Android
6 8 (1.83%) Apple iOS
6 8 (1.83%) Mac OS X
7 7 (1.61%) Ubuntu
7 7 (1.61%) Windows Server
8 1 (0.23%) CoreOS
8 1 (0.23%) Solaris
Processes & Methodologies
1 214 (49.08%) Agile Software Development
2 131 (30.05%) TDD
3 127 (29.13%) DevOps
4 118 (27.06%) Microservices
5 82 (18.81%) Analytics
6 79 (18.12%) BDD
7 69 (15.83%) Open Source
7 69 (15.83%) Scrum
7 69 (15.83%) Software Engineering
8 56 (12.84%) Continuous Integration
9 52 (11.93%) Machine Learning
10 42 (9.63%) OO
11 41 (9.40%) Continuous Delivery
12 35 (8.03%) Mentoring
13 32 (7.34%) MapReduce
14 30 (6.88%) Kanban
15 24 (5.50%) Data Modelling
15 24 (5.50%) E-Commerce
15 24 (5.50%) Multithreading
16 23 (5.28%) Data Analytics
Programming Languages
1 300 (68.81%) Java
2 144 (33.03%) Scala
3 125 (28.67%) Python
4 88 (20.18%) SQL
5 62 (14.22%) JavaScript
6 31 (7.11%) R
7 30 (6.88%) Bash Shell
8 21 (4.82%) C#
9 18 (4.13%) Ruby
10 17 (3.90%) Perl
11 14 (3.21%) Groovy
12 13 (2.98%) CQL
12 13 (2.98%) Shell Script
13 12 (2.75%) C++
14 9 (2.06%) PL/SQL
15 7 (1.61%) Kotlin
16 6 (1.38%) Go
16 6 (1.38%) Objective-C
17 5 (1.15%) Clojure
17 5 (1.15%) SPARQL
Qualifications
1 34 (7.80%) Degree
2 17 (3.90%) Master's Degree
3 8 (1.83%) Numerate Degree
4 7 (1.61%) Computer Science Degree
5 6 (1.38%) PhD
6 3 (0.69%) CCNA
6 3 (0.69%) CCSA
6 3 (0.69%) Cisco Certification
6 3 (0.69%) CISM
6 3 (0.69%) CISSP
6 3 (0.69%) JNCIA
7 1 (0.23%) Security Cleared
Quality Assurance & Compliance
1 14 (3.21%) QA
2 3 (0.69%) MiFID
2 3 (0.69%) SLA
3 1 (0.23%) COBIT
3 1 (0.23%) Data Quality
3 1 (0.23%) ISO/IEC 27001
System Software
1 100 (22.94%) Docker
2 31 (7.11%) HDFS
3 22 (5.05%) Apache Flume
4 18 (4.13%) Apache ZooKeeper
5 7 (1.61%) Platform Symphony
6 4 (0.92%) LXC
7 3 (0.69%) Oracle RAC
7 3 (0.69%) VMware Infrastructure
7 3 (0.69%) vSphere
8 1 (0.23%) Firmware
8 1 (0.23%) KVM
8 1 (0.23%) Postfix
8 1 (0.23%) Xen
Systems Management
1 54 (12.39%) Puppet
2 48 (11.01%) Opscode Chef
3 43 (9.86%) Ansible
4 32 (7.34%) Kubernetes
5 24 (5.50%) Hadoop YARN
6 20 (4.59%) Oozie
7 18 (4.13%) Nagios
8 16 (3.67%) Terraform
9 15 (3.44%) Grafana
9 15 (3.44%) Kibana
10 14 (3.21%) logstash
11 11 (2.52%) Graphite
11 11 (2.52%) Mesos
11 11 (2.52%) ZABBIX
12 8 (1.83%) Marathon
13 7 (1.61%) FreeIPA
13 7 (1.61%) HP SiteScope
14 6 (1.38%) Docker Swarm
14 6 (1.38%) Icinga
15 4 (0.92%) Prometheus
Vendors
1 73 (16.74%) Oracle
2 23 (5.28%) Red Hat
2 23 (5.28%) Splunk
3 17 (3.90%) Sybase
4 14 (3.21%) Cloudera
5 11 (2.52%) Dynatrace
6 10 (2.29%) Hortonworks
7 8 (1.83%) AppDynamics
7 8 (1.83%) Microsoft
7 8 (1.83%) VMware
8 7 (1.61%) HP
8 7 (1.61%) SAP
9 5 (1.15%) Apple
9 5 (1.15%) Cognos
9 5 (1.15%) IBM
9 5 (1.15%) Tableau
9 5 (1.15%) Vertica
10 4 (0.92%) F5
10 4 (0.92%) Google
10 4 (0.92%) Informatica
City, London
Oliver Bernard
Rate: £550 - £600 per day
Posted: Yesterday
West London
Hydrogen Group
Rate: £400.00 - £550.00 per day
Posted: Yesterday
East London
Careerwise UK Limited
Rate: £500 - £550 per day
Posted: Yesterday
London
Understanding Recruitment
Rate: £500.00 - £550.00 per day
Posted: 2 days ago
London
Careerwise UK Limited
Rate: £600 - £650 per day
Posted: 2 days ago
London
Coded People
Rate: £500 - £600 per day
Posted: 3 days ago
City, London
TEKsystems
Rate: £600 - £700 per day
Posted: 4 days ago
London
Venturi
Rate: £500 - £600 per day
Posted: 22 hours ago
East London
Careerwise UK Limited
Rate: £600 - £650 per day
Posted: Yesterday
London
CPS Group UK
Posted: 6 days ago
London
TEKsystems
Rate: £500 - £600 per annum
Posted: 6 days ago
London
Coded People
Rate: £600 per day
Posted: Yesterday
London
Client Server
Posted: 17 days ago