Period
to 20 October 2018

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 6 months to 20 October 2018 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
Central London > City of London
6 months to
20 Oct 2018
Same period 2017 Same period 2016
Rank 163 174 148
Rank change year-on-year +11 -26 +84
Contract jobs citing Apache Cassandra 89 73 93
As % of all contract IT jobs advertised in the City of London 1.28% 1.06% 1.40%
As % of the Database & Business Intelligence category 5.01% 4.31% 5.55%
Number of daily rates quoted 74 64 87
City of London median daily rate £575 £600 £525
Median daily rate % change year-on-year -4.17% +14.29% +2.44%
10th Percentile £503 £475 £406
90th Percentile £705 £688 £688
Central London median daily rate £575 £600 £525
% change year-on-year -4.17% +14.29% +5.00%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

Apache Cassandra is in the Databases and Business Intelligence category. The following 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 or business intelligence skills.

All Database and Business Intelligence Skills
City of London
Contract vacancies with a requirement for database or business intelligence skills 1,775 1,695 1,677
As % of all contract IT jobs advertised in the City of London 25.61% 24.72% 25.21%
Number of daily rates quoted 1,397 1,350 1,328
City of London median daily rate £525 £525 £474
Median daily rate % change year-on-year - +10.82% +2.43%
10th Percentile £375 £363 £325
90th Percentile £675 £688 £663
Central London median daily rate £525 £513 £459
% change year-on-year +2.44% +11.72% +1.94%
Number of hourly rates quoted 12 9 2
City of London median hourly rate £22.25 £27.50 £30.88
Median hourly rate % change year-on-year -19.09% -10.93% +23.50%
10th Percentile £19.50 £20.75 £18.76
90th Percentile £41.68 £33.25 £44.49
Central London median hourly rate £22.25 £27.50 £30.88
% change year-on-year -19.09% -10.93% +32.80%

Apache Cassandra
Job Vacancy Trend in the City of London

Job postings citing Apache Cassandra as a percentage of all IT jobs advertised in the City of London.

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 6 months to 20 October 2018.

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

Apache Cassandra
Contract Job Locations in the City of 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 City of London region over the 6 months to 20 October 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
London Bridge - 12 £575 -
Apache Cassandra
Central London

For the 6 months to 20 October 2018, IT contractor jobs citing Apache Cassandra also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region with a requirement for Apache Cassandra.

1 60 (67.42%) Java
2 52 (58.43%) Amazon AWS
3 51 (57.30%) Docker
4 45 (50.56%) Kubernetes
5 44 (49.44%) Agile Software Development
6 41 (46.07%) Kafka
7 38 (42.70%) MongoDB
7 38 (42.70%) NoSQL
8 37 (41.57%) Java 8
9 35 (39.33%) Spring
10 34 (38.20%) TDD
10 34 (38.20%) Apache Spark
11 31 (34.83%) Microservices
11 31 (34.83%) Big Data
12 30 (33.71%) Hadoop
13 29 (32.58%) Linux
14 28 (31.46%) Git (software)
14 28 (31.46%) Jenkins
15 25 (28.09%) Python
16 24 (26.97%) DevOps
16 24 (26.97%) Spring Boot
17 23 (25.84%) RESTful
17 23 (25.84%) JavaScript
18 22 (24.72%) HTTP
18 22 (24.72%) SSL
18 22 (24.72%) REST
18 22 (24.72%) Gradle
19 20 (22.47%) Maven
20 19 (21.35%) OAuth
20 19 (21.35%) TCP/IP

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 34 (38.20%) Apache Spark
2 16 (17.98%) Elasticsearch
3 12 (13.48%) Apache
4 8 (8.99%) Apache Solr
5 1 (1.12%) Apache Pig
5 1 (1.12%) nginx
5 1 (1.12%) OpenStack
Cloud Services
1 52 (58.43%) Amazon AWS
2 12 (13.48%) Heroku
3 9 (10.11%) Microsoft Azure
4 7 (7.87%) Apigee
5 5 (5.62%) Google Cloud Platform
6 1 (1.12%) Amazon EC2
6 1 (1.12%) GitHub
6 1 (1.12%) OpenShift
6 1 (1.12%) PaaS
Communications & Networking
1 22 (24.72%) HTTP
1 22 (24.72%) SSL
2 19 (21.35%) TCP/IP
3 12 (13.48%) DNS
3 12 (13.48%) FTP
4 6 (6.74%) Kerberos
5 1 (1.12%) Internet
Database & Business Intelligence
1 38 (42.70%) MongoDB
1 38 (42.70%) NoSQL
2 31 (34.83%) Big Data
3 30 (33.71%) Hadoop
4 15 (16.85%) HBase
4 15 (16.85%) Redis
5 14 (15.73%) Riak
6 9 (10.11%) Apache Hive
7 7 (7.87%) SQL Server
8 5 (5.62%) Relational Database
9 3 (3.37%) CouchDB
9 3 (3.37%) Sqoop
10 2 (2.25%) Amazon DynamoDB
10 2 (2.25%) Couchbase
10 2 (2.25%) Data Warehouse
10 2 (2.25%) MySQL
10 2 (2.25%) Spark SQL
11 1 (1.12%) PostgreSQL
11 1 (1.12%) RDBMS
11 1 (1.12%) SQL Server Integration Services
Development Applications
1 28 (31.46%) Git (software)
1 28 (31.46%) Jenkins
2 22 (24.72%) Gradle
3 20 (22.47%) Maven
4 16 (17.98%) GitLab
5 12 (13.48%) gulp
6 9 (10.11%) JUnit
6 9 (10.11%) Mockito
7 4 (4.49%) Travis CI
8 3 (3.37%) Artifactory
8 3 (3.37%) Visual Studio Team System
9 2 (2.25%) CircleCI
9 2 (2.25%) Cucumber
9 2 (2.25%) Gatling
9 2 (2.25%) GoCD
9 2 (2.25%) JMeter
9 2 (2.25%) LoadRunner
9 2 (2.25%) NeoLoad
9 2 (2.25%) Subversion
9 2 (2.25%) Visual Studio
General
1 16 (17.98%) Finance
2 6 (6.74%) Banking
3 4 (4.49%) Telecoms
4 3 (3.37%) Retail Banking
5 2 (2.25%) Prime Brokerage
5 2 (2.25%) Publishing
6 1 (1.12%) Front Office
6 1 (1.12%) Games
Job Titles
1 49 (55.06%) Developer
2 33 (37.08%) Java Developer
3 20 (22.47%) Senior Developer
4 16 (17.98%) Technical Leader
5 13 (14.61%) Senior Java Developer
6 9 (10.11%) DevOps Engineer
7 8 (8.99%) Lead Developer
7 8 (8.99%) Lead Java Developer
7 8 (8.99%) Technical Developer
8 7 (7.87%) Data Engineer
9 5 (5.62%) Agile Developer
9 5 (5.62%) Agile Java Developer
9 5 (5.62%) Big Data Engineer
9 5 (5.62%) Consultant
9 5 (5.62%) Scala Developer
9 5 (5.62%) Senior Scala Developer
10 4 (4.49%) Data Scientist
10 4 (4.49%) Senior DevOps
10 4 (4.49%) Senior DevOps Engineer
11 3 (3.37%) Senior Data Engineer
Libraries, Frameworks & Software Standards
1 41 (46.07%) Kafka
2 35 (39.33%) Spring
3 24 (26.97%) Spring Boot
4 23 (25.84%) RESTful
5 22 (24.72%) REST
6 19 (21.35%) Dropwizard
6 19 (21.35%) Guice
6 19 (21.35%) OAuth
7 14 (15.73%) AngularJS
8 13 (14.61%) CSS
8 13 (14.61%) HTML
8 13 (14.61%) Web Services
9 12 (13.48%) Ember.js
9 12 (13.48%) Hibernate
9 12 (13.48%) HTML5
9 12 (13.48%) OAuth2
9 12 (13.48%) Ratpack
9 12 (13.48%) SOAP
10 8 (8.99%) Node.js
11 7 (7.87%) SAML
Miscellaneous
1 8 (8.99%) Algorithms
1 8 (8.99%) Analytical Skills
1 8 (8.99%) Mobile App
2 3 (3.37%) Fintech
2 3 (3.37%) Fixed Income
3 2 (2.25%) Computer Science
3 2 (2.25%) Data Centre
3 2 (2.25%) Derivative
3 2 (2.25%) Enterprise Software
3 2 (2.25%) Greenfield Project
3 2 (2.25%) Linux Command Line
3 2 (2.25%) OTC Derivatives
4 1 (1.12%) Foreign Exchange (FX)
4 1 (1.12%) Internet of Things
4 1 (1.12%) Management Information System
4 1 (1.12%) Tandem
Operating Systems
1 29 (32.58%) Linux
2 10 (11.24%) Unix
3 7 (7.87%) Android
3 7 (7.87%) Apple iOS
3 7 (7.87%) Red Hat Enterprise Linux
4 1 (1.12%) CentOS
Processes & Methodologies
1 44 (49.44%) Agile Software Development
2 34 (38.20%) TDD
3 31 (34.83%) Microservices
4 24 (26.97%) DevOps
5 18 (20.22%) Continuous Delivery
6 17 (19.10%) Continuous Integration
6 17 (19.10%) Software Engineering
7 15 (16.85%) Scrum
8 14 (15.73%) Pair Programming
9 13 (14.61%) Problem-Solving
10 12 (13.48%) Domain-Driven Design
10 12 (13.48%) Machine Learning
10 12 (13.48%) OWASP
10 12 (13.48%) Test Automation
11 10 (11.24%) Configuration Management
11 10 (11.24%) Data Science
11 10 (11.24%) Open Source
12 9 (10.11%) Unit Testing
13 8 (8.99%) Root Cause Analysis
14 7 (7.87%) BDD
Programming Languages
1 60 (67.42%) Java
2 37 (41.57%) Java 8
3 25 (28.09%) Python
4 23 (25.84%) JavaScript
5 14 (15.73%) TypeScript
6 12 (13.48%) ES6
6 12 (13.48%) Scala
7 9 (10.11%) SQL
8 7 (7.87%) Groovy
9 6 (6.74%) R
10 4 (4.49%) MATLAB
10 4 (4.49%) Ruby
11 3 (3.37%) C#
12 2 (2.25%) Bash Shell
12 2 (2.25%) C
12 2 (2.25%) C++
12 2 (2.25%) Shell Script
13 1 (1.12%) Clojure
13 1 (1.12%) PowerShell
13 1 (1.12%) T-SQL
Qualifications
1 3 (3.37%) Degree
1 3 (3.37%) PhD
2 1 (1.12%) Master's Degree
Quality Assurance & Compliance
1 6 (6.74%) QA
2 3 (3.37%) Data Quality
3 1 (1.12%) MiFID
System Software
1 51 (57.30%) Docker
2 7 (7.87%) Apache Flume
3 6 (6.74%) Active Directory
4 5 (5.62%) Apache ZooKeeper
5 4 (4.49%) HDFS
6 3 (3.37%) VirtualBox
6 3 (3.37%) VMware Infrastructure
Systems Management
1 45 (50.56%) Kubernetes
2 15 (16.85%) Terraform
3 12 (13.48%) Docker Swarm
4 11 (12.36%) Prometheus
5 6 (6.74%) Ansible
6 5 (5.62%) Hadoop YARN
6 5 (5.62%) Oozie
7 3 (3.37%) Ambari
7 3 (3.37%) Apache Slider
7 3 (3.37%) ITRS Geneos
8 2 (2.25%) Puppet
Vendors
1 11 (12.36%) Google
2 8 (8.99%) Hortonworks
3 7 (7.87%) Oracle
4 4 (4.49%) Cloudera
4 4 (4.49%) Red Hat
5 3 (3.37%) IBM
5 3 (3.37%) Microsoft
5 3 (3.37%) VMware
6 2 (2.25%) AppDynamics
6 2 (2.25%) MapR
6 2 (2.25%) SOASTA, Inc
6 2 (2.25%) Sybase
6 2 (2.25%) Talend