Period
to 22 April 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 22 April 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
22 Apr 2018
Same period 2017 Same period 2016
Rank 193 148 100
Rank change year-on-year -45 -48 +137
Contract jobs citing Apache Cassandra 63 92 151
As % of all contract IT jobs advertised in the City of London 0.89% 1.50% 2.31%
As % of the Database & Business Intelligence category 3.62% 5.33% 8.84%
Number of daily rates quoted 51 85 146
City of London median daily rate £550 £550 £525
Median daily rate % change year-on-year -0.09% +4.76% +5.00%
10th Percentile £413 £480 £439
90th Percentile £675 £675 £613
Central London median daily rate £513 £550 £525
% change year-on-year -6.82% +4.76% +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 1,740 1,725 1,709
As % of all contract IT jobs advertised in the City of London 24.72% 28.10% 26.18%
Number of daily rates quoted 1,469 1,376 1,356
City of London median daily rate £513 £488 £475
Median daily rate % change year-on-year +5.13% +2.63% +5.56%
10th Percentile £363 £325 £313
90th Percentile £675 £650 £638
Central London median daily rate £513 £475 £475
% change year-on-year +7.89% - +5.56%
Number of hourly rates quoted 10 1 11
City of London median hourly rate £25.25 £22.34 £19.00
Median hourly rate % change year-on-year +13.05% +17.55% -47.22%
10th Percentile £20.41 £21.67 £16.13
90th Percentile £36.90 £23.00 £60.00
Central London median hourly rate £29.00 £22.34 £19.00
% change year-on-year +29.84% +17.55% -30.44%

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 22 April 2018.

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

For the 6 months to 22 April 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 39 (61.90%) NoSQL
2 35 (55.56%) Java
3 33 (52.38%) Apache Spark
4 29 (46.03%) MongoDB
4 29 (46.03%) Python
5 27 (42.86%) Hadoop
5 27 (42.86%) Jenkins
6 26 (41.27%) Kafka
6 26 (41.27%) Amazon AWS
7 24 (38.10%) Big Data
8 22 (34.92%) Agile Software Development
9 21 (33.33%) HBase
10 20 (31.75%) Continuous Integration
11 19 (30.16%) Machine Learning
11 19 (30.16%) Apache Hive
12 18 (28.57%) RESTful
13 17 (26.98%) HDFS
13 17 (26.98%) Software Engineering
14 16 (25.40%) ETL
14 16 (25.40%) Docker
15 15 (23.81%) Analytics
15 15 (23.81%) Hortonworks
15 15 (23.81%) Git (software)
15 15 (23.81%) MapReduce
15 15 (23.81%) Linux
16 14 (22.22%) SQL
16 14 (22.22%) Apache Flume
17 13 (20.63%) Microsoft Azure
17 13 (20.63%) Scala
17 13 (20.63%) JavaScript

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 33 (52.38%) Apache Spark
2 9 (14.29%) Apache
2 9 (14.29%) Apache Pig
3 7 (11.11%) Elasticsearch
4 6 (9.52%) Apache Solr
5 2 (3.17%) Oracle Coherence
6 1 (1.59%) nginx
6 1 (1.59%) Oracle SOA Suite
6 1 (1.59%) Tomcat
Applications
1 1 (1.59%) Chatbot
1 1 (1.59%) Microsoft Excel
Cloud Services
1 26 (41.27%) Amazon AWS
2 13 (20.63%) Microsoft Azure
3 7 (11.11%) Google Cloud Platform
4 4 (6.35%) Google Play
5 3 (4.76%) Azure Active Directory
6 2 (3.17%) Amazon Kinesis
6 2 (3.17%) Amazon SQS
7 1 (1.59%) PaaS
7 1 (1.59%) SaaS
Communications & Networking
1 10 (15.87%) SSL
2 8 (12.70%) Kerberos
3 6 (9.52%) HTTP
4 3 (4.76%) DNS
4 3 (4.76%) X.509
5 2 (3.17%) TCP/IP
6 1 (1.59%) Internet
Database & Business Intelligence
1 39 (61.90%) NoSQL
2 29 (46.03%) MongoDB
3 27 (42.86%) Hadoop
4 24 (38.10%) Big Data
5 21 (33.33%) HBase
6 19 (30.16%) Apache Hive
7 10 (15.87%) Data Warehouse
8 9 (14.29%) Amazon DynamoDB
8 9 (14.29%) Relational Database
9 7 (11.11%) RDBMS
9 7 (11.11%) SQL Server
9 7 (11.11%) Sqoop
10 6 (9.52%) MySQL
10 6 (9.52%) PostgreSQL
10 6 (9.52%) Redis
11 5 (7.94%) CouchDB
11 5 (7.94%) Neo4j
11 5 (7.94%) SQL Server Integration Services
12 4 (6.35%) JanusGraph
13 3 (4.76%) Power BI
Development Applications
1 27 (42.86%) Jenkins
2 15 (23.81%) Git (software)
3 10 (15.87%) Maven
4 8 (12.70%) TeamCity
5 7 (11.11%) Cucumber
5 7 (11.11%) JUnit
6 6 (9.52%) Gradle
6 6 (9.52%) SonarQube
7 5 (7.94%) CircleCI
8 3 (4.76%) Mocha
9 2 (3.17%) GitLab
9 2 (3.17%) GoCD
9 2 (3.17%) Jasmine
9 2 (3.17%) Mockito
9 2 (3.17%) Travis CI
9 2 (3.17%) Visual Studio
10 1 (1.59%) MSBuild
10 1 (1.59%) NUnit
10 1 (1.59%) SpecFlow
10 1 (1.59%) Subversion
General
1 13 (20.63%) Banking
2 10 (15.87%) Finance
3 8 (12.70%) Retail
4 6 (9.52%) Publishing
5 3 (4.76%) Investment Banking
6 2 (3.17%) Front Office
7 1 (1.59%) Marketing
7 1 (1.59%) Retail Banking
Job Titles
1 26 (41.27%) Developer
2 13 (20.63%) Data Engineer
3 9 (14.29%) Java Developer
4 7 (11.11%) Big Data Engineer
4 7 (11.11%) Software Engineer
5 6 (9.52%) Architect
5 6 (9.52%) Consultant
5 6 (9.52%) Data Architect
6 5 (7.94%) DevOps Engineer
7 4 (6.35%) Apache Spark Developer
7 4 (6.35%) AWS DevOps
7 4 (6.35%) AWS DevOps Engineer
7 4 (6.35%) AWS Engineer
7 4 (6.35%) Cassandra Developer
7 4 (6.35%) Principal Consultant
7 4 (6.35%) Python Developer
8 3 (4.76%) Big Data Architect
8 3 (4.76%) Big Data Developer
8 3 (4.76%) Data Integration Developer
8 3 (4.76%) Integration Developer
Libraries, Frameworks & Software Standards
1 26 (41.27%) Kafka
2 18 (28.57%) RESTful
3 12 (19.05%) Web Services
4 9 (14.29%) React
5 8 (12.70%) Node.js
5 8 (12.70%) Spring
6 7 (11.11%) OAuth
6 7 (11.11%) TensorFlow
7 6 (9.52%) Redux
7 6 (9.52%) REST
8 5 (7.94%) Keras
8 5 (7.94%) LDAP
8 5 (7.94%) MLlib
8 5 (7.94%) scikit-learn
8 5 (7.94%) Spring Boot
9 4 (6.35%) Browserify
9 4 (6.35%) GraphQL
9 4 (6.35%) gRPC
9 4 (6.35%) ReactiveX
9 4 (6.35%) RequireJS
Miscellaneous
1 11 (17.46%) Mobile App
2 8 (12.70%) Analytical Skills
3 5 (7.94%) Algorithms
4 4 (6.35%) Data Centre
4 4 (6.35%) Fintech
5 3 (4.76%) Computer Science
5 3 (4.76%) Derivative
5 3 (4.76%) Greenfield Project
5 3 (4.76%) Reference Data
6 2 (3.17%) Credit Risk
6 2 (3.17%) Interest Rate Derivative
6 2 (3.17%) iPad
6 2 (3.17%) Market Risk
6 2 (3.17%) Replication
7 1 (1.59%) Clustering
7 1 (1.59%) Grid Computing
7 1 (1.59%) Internet of Things
Operating Systems
1 15 (23.81%) Linux
2 9 (14.29%) Android
2 9 (14.29%) Apple iOS
3 6 (9.52%) Red Hat Enterprise Linux
4 5 (7.94%) Unix
5 1 (1.59%) Windows
5 1 (1.59%) Windows Server
5 1 (1.59%) Windows Server 2008
Processes & Methodologies
1 22 (34.92%) Agile Software Development
2 20 (31.75%) Continuous Integration
3 19 (30.16%) Machine Learning
4 17 (26.98%) Software Engineering
5 16 (25.40%) ETL
6 15 (23.81%) Analytics
6 15 (23.81%) MapReduce
7 12 (19.05%) Microservices
8 11 (17.46%) DevOps
8 11 (17.46%) TDD
9 10 (15.87%) Scrum
10 9 (14.29%) E-Commerce
11 8 (12.70%) Business Intelligence
12 7 (11.11%) API Development
12 7 (11.11%) Continuous Delivery
12 7 (11.11%) Data Engineering
12 7 (11.11%) Deep Learning
12 7 (11.11%) Problem-Solving
13 6 (9.52%) BDD
13 6 (9.52%) Configuration Management
Programming Languages
1 35 (55.56%) Java
2 29 (46.03%) Python
3 14 (22.22%) SQL
4 13 (20.63%) Java 8
4 13 (20.63%) JavaScript
4 13 (20.63%) Scala
5 7 (11.11%) Shell Script
6 5 (7.94%) Bash Shell
6 5 (7.94%) C#
7 4 (6.35%) ES6
7 4 (6.35%) Objective-C
8 3 (4.76%) XPath
9 2 (3.17%) Groovy
9 2 (3.17%) PHP
10 1 (1.59%) Erlang
10 1 (1.59%) MATLAB
10 1 (1.59%) PL/SQL
10 1 (1.59%) R
10 1 (1.59%) Ruby
10 1 (1.59%) XAML
Qualifications
1 3 (4.76%) Degree
2 2 (3.17%) Computer Science Degree
2 2 (3.17%) Numerate Degree
Quality Assurance & Compliance
1 2 (3.17%) QA
System Software
1 17 (26.98%) HDFS
2 16 (25.40%) Docker
3 14 (22.22%) Apache Flume
4 9 (14.29%) Active Directory
4 9 (14.29%) Apache ZooKeeper
Systems Management
1 11 (17.46%) Hadoop YARN
2 9 (14.29%) Oozie
3 6 (9.52%) Ambari
3 6 (9.52%) Apache Slider
4 5 (7.94%) Kubernetes
5 4 (6.35%) Terraform
6 3 (4.76%) Ansible
6 3 (4.76%) Mesos
6 3 (4.76%) Puppet
6 3 (4.76%) Single Sign-On
7 2 (3.17%) Prometheus
8 1 (1.59%) BladeLogic
8 1 (1.59%) Salt
Vendors
1 15 (23.81%) Hortonworks
2 11 (17.46%) Google
3 8 (12.70%) Cloudera
4 7 (11.11%) Microsoft
4 7 (11.11%) Oracle
5 5 (7.94%) MapR
6 4 (6.35%) Apigee
6 4 (6.35%) Apple
7 3 (4.76%) IBM
7 3 (4.76%) Tableau
7 3 (4.76%) Talend
8 2 (3.17%) Cognos
8 2 (3.17%) Informatica
8 2 (3.17%) SAP
8 2 (3.17%) Vertica
9 1 (1.59%) SaltStack