Period
to 24 February 2018

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 6 months to 24 February 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
England > London
6 months to
24 Feb 2018
Same period 2017 Same period 2016
Rank 258 240 225
Rank change year-on-year -18 -15 +109
Contract jobs citing Apache Cassandra 469 434 523
As % of all contract IT jobs advertised in London 1.01% 1.05% 1.17%
As % of the Database & Business Intelligence category 4.27% 4.35% 4.92%
Number of daily rates quoted 395 342 435
London median daily rate £550 £550 £525
Median daily rate % change year-on-year - +4.76% +5.00%
10th Percentile £450 £415 £409
90th Percentile £650 £699 £630
England median daily rate £535 £525 £525
% change year-on-year +1.90% - +5.00%
Number of hourly rates quoted 0 0 3
London median hourly rate - - £50.00
England median hourly rate - £22.50 £50.00
% change year-on-year - -55.00% -

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 London with a requirement for database or business intelligence skills.

All Database and Business Intelligence Skills
London
Contract vacancies with a requirement for database or business intelligence skills 10,973 9,969 10,631
As % of all contract IT jobs advertised in London 23.55% 24.13% 23.87%
Number of daily rates quoted 8,341 7,102 7,682
London median daily rate £500 £475 £460
Median daily rate % change year-on-year +5.26% +3.26% +8.24%
10th Percentile £356 £325 £313
90th Percentile £663 £650 £638
England median daily rate £475 £438 £425
% change year-on-year +8.57% +2.94% +6.25%
Number of hourly rates quoted 62 44 62
London median hourly rate £27.50 £32.25 £26.00
Median hourly rate % change year-on-year -14.73% +24.04% -13.33%
10th Percentile £17.44 £15.25 £16.03
90th Percentile £42.80 £60.13 £100.00
England median hourly rate £33.00 £26.50 £26.93
% change year-on-year +24.53% -1.58% -7.16%

Apache Cassandra
Job Vacancy Trend in London

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

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 6 months to 24 February 2018.

Contractor daily rate histogram 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 6 months to 24 February 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
Central London -56 84 £538 -2.27% 40
West London +16 47 £550 -1.79% 32
East London -5 19 £575 - 2
South London - 2 £475 -
North London -2 1 £325 -38.10% 1
Apache Cassandra
England

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

1 308 (65.67%) NoSQL
2 295 (62.90%) Java
3 267 (56.93%) Agile Software Development
4 237 (50.53%) Kafka
5 186 (39.66%) Scala
6 185 (39.45%) MongoDB
7 181 (38.59%) Python
8 170 (36.25%) Apache Spark
9 162 (34.54%) Amazon AWS
10 156 (33.26%) Docker
11 154 (32.84%) TDD
12 153 (32.62%) DevOps
13 142 (30.28%) Hadoop
14 136 (29.00%) Continuous Integration
14 136 (29.00%) Microservices
15 134 (28.57%) Big Data
16 132 (28.14%) Linux
17 130 (27.72%) Jenkins
18 125 (26.65%) RESTful
18 125 (26.65%) SQL
19 114 (24.31%) Scrum
20 112 (23.88%) BDD
21 101 (21.54%) Spring
22 100 (21.32%) Elasticsearch
23 95 (20.26%) Git (software)
23 95 (20.26%) Unix
24 87 (18.55%) Apache
25 86 (18.34%) Pair Programming
26 84 (17.91%) HBase
27 81 (17.27%) JavaScript

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
1 170 (36.25%) Apache Spark
2 100 (21.32%) Elasticsearch
3 87 (18.55%) Apache
4 33 (7.04%) Apache Pig
5 29 (6.18%) Apache Solr
6 18 (3.84%) Confluence
7 16 (3.41%) OpenStack
8 15 (3.20%) MQSeries
9 7 (1.49%) Mule
10 6 (1.28%) Jetty
10 6 (1.28%) Mule ESB
11 5 (1.07%) Tomcat
12 4 (0.85%) Apache Airflow
12 4 (0.85%) Cloud Foundry
12 4 (0.85%) nginx
12 4 (0.85%) SAS
13 3 (0.64%) JBoss
13 3 (0.64%) Oracle Coherence
14 2 (0.43%) Jupyter
14 2 (0.43%) SharePoint
Applications
1 3 (0.64%) Microsoft Excel
2 2 (0.43%) SPSS
Business Applications
1 2 (0.43%) Payment Gateway
Cloud Services
1 162 (34.54%) Amazon AWS
2 40 (8.53%) Microsoft Azure
3 24 (5.12%) Amazon S3
4 12 (2.56%) Amazon EC2
4 12 (2.56%) Amazon SQS
4 12 (2.56%) AWS CloudFormation
4 12 (2.56%) Google Cloud Platform
5 11 (2.35%) Google Play
6 9 (1.92%) Amazon CloudWatch
6 9 (1.92%) Amazon EMR
7 8 (1.71%) Amazon Kinesis
7 8 (1.71%) GitHub
7 8 (1.71%) PaaS
8 6 (1.28%) SaaS
9 5 (1.07%) Route 53
10 4 (0.85%) Data Lake Analytics
10 4 (0.85%) Serverless
11 3 (0.64%) AWS Lambda
11 3 (0.64%) Azure Data Factory
11 3 (0.64%) Cloud Computing
Communications & Networking
1 37 (7.89%) HTTP
2 27 (5.76%) TCP/IP
3 22 (4.69%) Internet
4 18 (3.84%) Kerberos
5 15 (3.20%) SSL
6 8 (1.71%) Firewall
7 3 (0.64%) HTTPS
8 2 (0.43%) Network Security
8 2 (0.43%) SMS
8 2 (0.43%) ZigBee
9 1 (0.21%) DNS
9 1 (0.21%) Multicast
9 1 (0.21%) VLAN
Database & Business Intelligence
1 308 (65.67%) NoSQL
2 185 (39.45%) MongoDB
3 142 (30.28%) Hadoop
4 134 (28.57%) Big Data
5 84 (17.91%) HBase
6 78 (16.63%) Apache Hive
7 63 (13.43%) MySQL
8 45 (9.59%) PostgreSQL
9 38 (8.10%) Amazon DynamoDB
9 38 (8.10%) Relational Database
10 34 (7.25%) Data Warehouse
11 30 (6.40%) Redis
12 26 (5.54%) SQL Server
13 21 (4.48%) Amazon Redshift
14 19 (4.05%) Couchbase
14 19 (4.05%) Neo4j
15 16 (3.41%) Impala
16 14 (2.99%) Flink
16 14 (2.99%) JanusGraph
16 14 (2.99%) Sqoop
Development Applications
1 130 (27.72%) Jenkins
2 95 (20.26%) Git (software)
3 57 (12.15%) Mockito
4 56 (11.94%) Maven
5 38 (8.10%) Cucumber
6 36 (7.68%) Gradle
7 27 (5.76%) JUnit
8 19 (4.05%) JIRA
9 17 (3.62%) JMeter
9 17 (3.62%) TeamCity
10 16 (3.41%) Subversion
11 15 (3.20%) SonarQube
12 14 (2.99%) Selenium
13 11 (2.35%) Visual Studio
14 10 (2.13%) Bitbucket
14 10 (2.13%) GoCD
15 9 (1.92%) Visual Studio Team System
16 8 (1.71%) Appium
16 8 (1.71%) Artifactory
16 8 (1.71%) Travis CI
General
1 74 (15.78%) Finance
2 46 (9.81%) Banking
3 24 (5.12%) Games
4 16 (3.41%) Publishing
5 14 (2.99%) Retail
6 9 (1.92%) Marketing
7 8 (1.71%) Telecoms
8 5 (1.07%) Investment Banking
9 4 (0.85%) Front Office
9 4 (0.85%) Retail Banking
10 3 (0.64%) French Language
11 1 (0.21%) Billing
Job Titles
1 230 (49.04%) Developer
2 108 (23.03%) Java Developer
3 78 (16.63%) Scala Developer
4 62 (13.22%) DevOps Engineer
5 54 (11.51%) Senior Developer
6 50 (10.66%) Data Engineer
7 37 (7.89%) AWS Engineer
8 33 (7.04%) AWS DevOps
8 33 (7.04%) AWS DevOps Engineer
9 31 (6.61%) Big Data Engineer
10 26 (5.54%) Architect
11 25 (5.33%) Senior Java Developer
12 24 (5.12%) Agile Developer
13 23 (4.90%) Agile Java Developer
13 23 (4.90%) Senior Scala Developer
14 22 (4.69%) Big Data Developer
15 21 (4.48%) Java Scala Developer
16 19 (4.05%) Consultant
16 19 (4.05%) Data Architect
16 19 (4.05%) NoSQL Developer
Libraries, Frameworks & Software Standards
1 237 (50.53%) Kafka
2 125 (26.65%) RESTful
3 101 (21.54%) Spring
4 72 (15.35%) Web Services
5 69 (14.71%) Akka
5 69 (14.71%) REST
6 62 (13.22%) Elastic Stack
7 44 (9.38%) Hibernate
8 40 (8.53%) React
9 39 (8.32%) Node.js
10 37 (7.89%) Play Framework
10 37 (7.89%) Spring Boot
11 36 (7.68%) HTML
12 35 (7.46%) RabbitMQ
13 32 (6.82%) AngularJS
13 32 (6.82%) JMS
14 31 (6.61%) HTML5
15 29 (6.18%) SOAP
16 26 (5.54%) CSS
17 25 (5.33%) Spark Streaming
Miscellaneous
1 44 (9.38%) Greenfield Project
2 35 (7.46%) Algorithms
3 33 (7.04%) Fintech
4 29 (6.18%) Computer Science
5 26 (5.54%) Analytical Skills
6 18 (3.84%) Mobile App
7 13 (2.77%) Data Structures
8 12 (2.56%) Data Centre
9 10 (2.13%) Replication
9 10 (2.13%) Video on Demand
10 8 (1.71%) User Experience
11 7 (1.49%) Virtual Team
12 6 (1.28%) Online Games
13 5 (1.07%) Derivative
13 5 (1.07%) Interest Rate Derivative
13 5 (1.07%) Linux Command Line
13 5 (1.07%) Market Risk
14 4 (0.85%) Credit Risk
14 4 (0.85%) Internet of Things
15 3 (0.64%) Blog
Operating Systems
1 132 (28.14%) Linux
2 95 (20.26%) Unix
3 37 (7.89%) Red Hat Enterprise Linux
4 21 (4.48%) CentOS
5 17 (3.62%) Android
5 17 (3.62%) Apple iOS
6 16 (3.41%) Windows
7 4 (0.85%) CoreOS
8 3 (0.64%) Mac OS X
8 3 (0.64%) Ubuntu
8 3 (0.64%) Windows Server
9 2 (0.43%) Debian
10 1 (0.21%) Fedora
10 1 (0.21%) VMS
10 1 (0.21%) Windows Server 2008
Processes & Methodologies
1 267 (56.93%) Agile Software Development
2 154 (32.84%) TDD
3 153 (32.62%) DevOps
4 136 (29.00%) Continuous Integration
4 136 (29.00%) Microservices
5 114 (24.31%) Scrum
6 112 (23.88%) BDD
7 86 (18.34%) Pair Programming
8 79 (16.84%) Machine Learning
9 75 (15.99%) Open Source
10 66 (14.07%) Analytics
11 61 (13.01%) Kanban
12 58 (12.37%) Software Engineering
13 53 (11.30%) High Availability
14 50 (10.66%) Domain-Driven Design
15 43 (9.17%) MapReduce
16 40 (8.53%) ETL
16 40 (8.53%) Test Automation
17 37 (7.89%) Data Science
18 28 (5.97%) Migration
Programming Languages
1 295 (62.90%) Java
2 186 (39.66%) Scala
3 181 (38.59%) Python
4 125 (26.65%) SQL
5 81 (17.27%) JavaScript
6 45 (9.59%) Bash Shell
7 39 (8.32%) Ruby
8 37 (7.89%) Groovy
9 21 (4.48%) C#
10 19 (4.05%) Shell Script
11 18 (3.84%) ES6
12 17 (3.62%) R
13 15 (3.20%) Java 9
14 14 (2.99%) Objective-C
15 13 (2.77%) Clojure
15 13 (2.77%) Go
15 13 (2.77%) GraphQL
16 11 (2.35%) Perl
17 10 (2.13%) C
18 6 (1.28%) PHP
Qualifications
1 41 (8.74%) Degree
2 22 (4.69%) Computer Science Degree
3 13 (2.77%) Numerate Degree
4 11 (2.35%) Master's Degree
5 4 (0.85%) AWS Certification
6 3 (0.64%) Security Cleared
7 2 (0.43%) PhD
7 2 (0.43%) PRINCE2 Certification
7 2 (0.43%) SC Cleared
8 1 (0.21%) MySQL Certification
Quality Assurance & Compliance
1 12 (2.56%) QA
2 8 (1.71%) GDPR
3 3 (0.64%) GCP
3 3 (0.64%) PCI DSS
4 2 (0.43%) Data Quality
4 2 (0.43%) ISO/IEC 27001
5 1 (0.21%) WCAG
System Software
1 156 (33.26%) Docker
2 61 (13.01%) HDFS
3 53 (11.30%) Apache Flume
4 32 (6.82%) Apache ZooKeeper
5 16 (3.41%) Active Directory
6 3 (0.64%) Ceph
6 3 (0.64%) Virtual Machines
6 3 (0.64%) VirtualBox
7 2 (0.43%) Firmware
7 2 (0.43%) Hyper-V
7 2 (0.43%) VMware Infrastructure
8 1 (0.21%) etcd
8 1 (0.21%) GridGain
8 1 (0.21%) LXC
Systems Management
1 79 (16.84%) Kubernetes
2 65 (13.86%) Puppet
3 51 (10.87%) Kibana
3 51 (10.87%) logstash
4 45 (9.59%) Ansible
5 43 (9.17%) Grafana
6 37 (7.89%) Terraform
7 35 (7.46%) Opscode Chef
8 31 (6.61%) Hadoop YARN
9 25 (5.33%) Oozie
10 18 (3.84%) Mesos
11 14 (2.99%) Ambari
11 14 (2.99%) Apache Slider
12 11 (2.35%) Packer
13 10 (2.13%) Nagios
13 10 (2.13%) Prometheus
14 8 (1.71%) Rancher
15 7 (1.49%) Icinga
16 5 (1.07%) HAProxy
16 5 (1.07%) Salt
Vendors
1 64 (13.65%) Splunk
2 59 (12.58%) AppDynamics
3 36 (7.68%) Hortonworks
4 32 (6.82%) Oracle
5 28 (5.97%) Microsoft
6 19 (4.05%) Google
6 19 (4.05%) MapR
7 18 (3.84%) Cloudera
8 16 (3.41%) IBM
9 11 (2.35%) Apple
9 11 (2.35%) Talend
10 10 (2.13%) New Relic
11 8 (1.71%) Alteryx
11 8 (1.71%) hybris
12 6 (1.28%) Red Hat
12 6 (1.28%) Tableau
13 5 (1.07%) SaltStack
13 5 (1.07%) Teradata
13 5 (1.07%) Vertica
14 4 (0.85%) Ab Initio