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 24 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
London / City of London
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 114 125 184
Rank change year-on-year +11 +59  
Contract jobs citing Apache Cassandra 52 40 24
As % of all contract IT jobs advertised in the City of London 1.59% 1.18% 0.41%
As % of the Database & Business Intelligence category 6.12% 4.90% 1.61%
Number of daily rates quoted 46 38 20
Median daily rate £575 £531 £513
Median daily rate % change year-on-year +8.23% +3.65%  
90% offered a daily rate of more than £488 £418 £398
10% offered a daily rate of more than £650 £675 £604
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 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 849 816 1489
As % of all contract IT job vacancies advertised in the City of London 26.00% 24.12% 25.58%
Number of daily rates quoted 667 652 1187
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 £384 £338 £325
10% offered a daily rate of more than £650 £625 £600
UK excluding London median daily rate £400 £383 £350
% change year-on-year +4.57% +9.28%  
Number of hourly rates quoted 2 4 7
Median hourly rate £21.50 £17.88 £30.00
Median hourly rate % change year-on-year +20.27% -40.41%  
UK excluding London median hourly rate £38.00 £31.00 £26.00
% change year-on-year +22.58% +19.23%  

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 24 June 2017.

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

For the 6 months to 24 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 City of London region with a requirement for Apache Cassandra.

1 83 (89.25%) Java
2 60 (64.52%) Agile Software Development
3 58 (62.37%) TDD
4 46 (49.46%) NoSQL
5 39 (41.94%) Big Data
6 37 (39.78%) Apache Spark
7 35 (37.63%) Hadoop
8 33 (35.48%) MongoDB
9 32 (34.41%) Scala
9 32 (34.41%) BDD
9 32 (34.41%) DevOps
10 30 (32.26%) Linux
11 25 (26.88%) Mentoring
12 23 (24.73%) Unix
13 22 (23.66%) Open Source
13 22 (23.66%) Microservices
14 21 (22.58%) JavaScript
14 21 (22.58%) Spring
15 18 (19.35%) Finance
15 18 (19.35%) Software Engineering
15 18 (19.35%) Web Services
15 18 (19.35%) Kafka
16 17 (18.28%) OO
16 17 (18.28%) Scrum
17 16 (17.20%) Python
17 16 (17.20%) Client/Server
17 16 (17.20%) SQL
18 15 (16.13%) REST
18 15 (16.13%) Git (software)
18 15 (16.13%) Service Design

Apache Cassandra
Co-occurring 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 (39.78%) Apache Spark
2 8 (8.60%) Apache Pig
3 6 (6.45%) Confluence
4 4 (4.30%) Apache
4 4 (4.30%) Elasticsearch
5 3 (3.23%) Apache Solr
6 2 (2.15%) Tomcat
7 1 (1.08%) JBoss
7 1 (1.08%) Jupyter
7 1 (1.08%) nginx
7 1 (1.08%) Oracle Coherence
7 1 (1.08%) WebLogic
7 1 (1.08%) WebSphere
Applications
1 1 (1.08%) Weka
Cloud Services
1 14 (15.05%) Amazon AWS
2 5 (5.38%) Microsoft Azure
2 5 (5.38%) Slack
3 1 (1.08%) Amazon SQS
3 1 (1.08%) SaaS
Communications & Networking
1 5 (5.38%) HTTP
2 1 (1.08%) F5 BIG-IP GTM
2 1 (1.08%) F5 BIG-IP LTM
2 1 (1.08%) Firewall
2 1 (1.08%) LAN
2 1 (1.08%) LDAP
2 1 (1.08%) NAS
2 1 (1.08%) TCP/IP
2 1 (1.08%) WAN
Database & Business Intelligence
1 46 (49.46%) NoSQL
2 39 (41.94%) Big Data
3 35 (37.63%) Hadoop
4 33 (35.48%) MongoDB
5 8 (8.60%) CouchDB
5 8 (8.60%) HBase
5 8 (8.60%) PostgreSQL
6 7 (7.53%) Apache Hive
7 6 (6.45%) MySQL
8 5 (5.38%) Data Warehouse
8 5 (5.38%) Relational Database
9 4 (4.30%) RDBMS
9 4 (4.30%) SQL Server
10 3 (3.23%) Neo4j
11 2 (2.15%) KDB
11 2 (2.15%) Kdb+
11 2 (2.15%) Sqoop
11 2 (2.15%) Tick Data
12 1 (1.08%) DataStage
12 1 (1.08%) Pentaho
Development Applications
1 15 (16.13%) Git (software)
2 11 (11.83%) Jenkins
3 10 (10.75%) Jasmine
4 7 (7.53%) JIRA
5 6 (6.45%) JUnit
6 4 (4.30%) Cucumber
7 1 (1.08%) Atlassian Bamboo
7 1 (1.08%) Bitbucket
7 1 (1.08%) EasyMock
7 1 (1.08%) Eclipse
7 1 (1.08%) Fiddler
7 1 (1.08%) Hudson
7 1 (1.08%) IntelliJ
7 1 (1.08%) JMeter
7 1 (1.08%) LoadRunner
7 1 (1.08%) Log4j
7 1 (1.08%) Mockito
7 1 (1.08%) Subversion
7 1 (1.08%) Team Foundation Server
7 1 (1.08%) TeamCity
General
1 18 (19.35%) Finance
2 11 (11.83%) Banking
3 5 (5.38%) Investment Banking
4 2 (2.15%) Front Office
5 1 (1.08%) Publishing
5 1 (1.08%) Retail
Job Titles
1 71 (76.34%) Developer
2 52 (55.91%) Java Developer
3 22 (23.66%) Senior Developer
4 18 (19.35%) AWS Developer
4 18 (19.35%) Scala Developer
5 15 (16.13%) Senior Java Developer
6 14 (15.05%) Hadoop Developer
7 13 (13.98%) Big Data Developer
8 12 (12.90%) Java Hadoop Developer
9 11 (11.83%) AWS DevOps
9 11 (11.83%) DevOps Developer
10 10 (10.75%) Senior DevOps
11 8 (8.60%) Cassandra Developer
12 7 (7.53%) Java Scala Developer
12 7 (7.53%) Senior Scala Developer
13 6 (6.45%) Apache Spark Developer
14 4 (4.30%) Agile Developer
14 4 (4.30%) Agile Java Developer
14 4 (4.30%) DevOps Engineer
14 4 (4.30%) SQL Developer
Libraries, Frameworks & Software Standards
1 21 (22.58%) Spring
2 18 (19.35%) Kafka
2 18 (19.35%) Web Services
3 15 (16.13%) REST
4 14 (15.05%) Node.js
5 13 (13.98%) RESTful
6 12 (12.90%) Akka
7 11 (11.83%) HTML
8 10 (10.75%) Play Framework
9 9 (9.68%) HTML5
9 9 (9.68%) jQuery
10 7 (7.53%) Ajax
10 7 (7.53%) CSS
10 7 (7.53%) React
11 6 (6.45%) JSON
12 4 (4.30%) AngularJS
12 4 (4.30%) PhoneGap
12 4 (4.30%) Spring MVC
13 3 (3.23%) Modernizr
13 3 (3.23%) Redux
Miscellaneous
1 16 (17.20%) Client/Server
2 10 (10.75%) Greenfield Project
3 5 (5.38%) Public Cloud
4 4 (4.30%) Credit Risk
4 4 (4.30%) Equities
5 3 (3.23%) Foreign Exchange (FX)
6 2 (2.15%) Analytical Skills
6 2 (2.15%) Computer Science
6 2 (2.15%) Data Centre
6 2 (2.15%) Derivative
6 2 (2.15%) Enterprise Software
6 2 (2.15%) Fintech
6 2 (2.15%) TWAP
6 2 (2.15%) User Experience
6 2 (2.15%) VWAP
7 1 (1.08%) Algorithms
7 1 (1.08%) Distributed Denial-of-Service
7 1 (1.08%) Hedge funds
7 1 (1.08%) Market Risk
7 1 (1.08%) Video Conferencing
Operating Systems
1 30 (32.26%) Linux
2 23 (24.73%) Unix
3 5 (5.38%) Red Hat Enterprise Linux
4 4 (4.30%) Windows
5 3 (3.23%) Android
5 3 (3.23%) Apple iOS
6 2 (2.15%) CentOS
Processes & Methodologies
1 60 (64.52%) Agile Software Development
2 58 (62.37%) TDD
3 32 (34.41%) BDD
3 32 (34.41%) DevOps
4 25 (26.88%) Mentoring
5 22 (23.66%) Microservices
5 22 (23.66%) Open Source
6 18 (19.35%) Software Engineering
7 17 (18.28%) OO
7 17 (18.28%) Scrum
8 15 (16.13%) Service Design
9 11 (11.83%) E-Commerce
10 10 (10.75%) Analytics
11 8 (8.60%) Continuous Integration
12 7 (7.53%) Kanban
12 7 (7.53%) Test Automation
13 6 (6.45%) MapReduce
13 6 (6.45%) Multithreading
13 6 (6.45%) MVC
14 5 (5.38%) Continuous Delivery
Programming Languages
1 83 (89.25%) Java
2 32 (34.41%) Scala
3 21 (22.58%) JavaScript
4 16 (17.20%) Python
4 16 (17.20%) SQL
5 8 (8.60%) C#
6 6 (6.45%) Kotlin
6 6 (6.45%) Objective-C
7 4 (4.30%) Bash Shell
7 4 (4.30%) Groovy
8 2 (2.15%) Apple Swift
8 2 (2.15%) CQL
8 2 (2.15%) GraphQL
8 2 (2.15%) PL/SQL
8 2 (2.15%) Ruby
8 2 (2.15%) Shell Script
9 1 (1.08%) F#
9 1 (1.08%) MATLAB
9 1 (1.08%) Perl
9 1 (1.08%) PHP
Qualifications
1 2 (2.15%) Computer Science Degree
1 2 (2.15%) Degree
2 1 (1.08%) PhD
Quality Assurance & Compliance
1 4 (4.30%) QA
2 2 (2.15%) MiFID
System Software
1 6 (6.45%) Docker
2 5 (5.38%) HDFS
3 3 (3.23%) Apache ZooKeeper
4 1 (1.08%) Apache Flume
4 1 (1.08%) LXC
4 1 (1.08%) vSphere
Systems Management
1 14 (15.05%) Opscode Chef
1 14 (15.05%) Puppet
2 5 (5.38%) Ansible
3 4 (4.30%) Kubernetes
4 2 (2.15%) Grafana
4 2 (2.15%) Hadoop YARN
4 2 (2.15%) Terraform
5 1 (1.08%) Graphite
5 1 (1.08%) HP SiteScope
5 1 (1.08%) Kibana
5 1 (1.08%) Nagios
5 1 (1.08%) Prometheus
5 1 (1.08%) Rancher
5 1 (1.08%) Tivoli
5 1 (1.08%) ZABBIX
Vendors
1 6 (6.45%) Oracle
1 6 (6.45%) Red Hat
2 3 (3.23%) Teradata
3 2 (2.15%) Cloudera
3 2 (2.15%) F5
3 2 (2.15%) Hortonworks
3 2 (2.15%) Microsoft
3 2 (2.15%) Sybase
4 1 (1.08%) Ab Initio
4 1 (1.08%) BMC
4 1 (1.08%) Dynatrace
4 1 (1.08%) HP
4 1 (1.08%) IBM
4 1 (1.08%) Informatica
4 1 (1.08%) MapR
4 1 (1.08%) New Relic
4 1 (1.08%) SOASTA, Inc
4 1 (1.08%) Splunk
4 1 (1.08%) VMware
4 1 (1.08%) WorldPay
City, London
Oliver Bernard
Rate: £550 - £600 per day
Posted: 2 days ago
City, London
TEKsystems
Rate: £600 - £700 per day
Posted: 5 days ago