Job Vacancy Trend Daily Rate Trend Daily Rate Histogram Job Locations Skill Sets
Period
to 20 August 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 20 August 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
20 Aug 2018		 Same period 2017 Same period 2016
Rank 244 260 253
Rank change year-on-year +16 -7 +121
Contract jobs citing Apache Cassandra 501 437 447
As % of all contract IT jobs advertised in London 1.10% 1.02% 0.99%
As % of the Database & Business Intelligence category 4.34% 4.20% 4.26%
Number of daily rates quoted 384 346 377
London median daily rate £550 £550 £525
Median daily rate % change year-on-year - +4.76% +5.00%
10th Percentile £425 £419 £413
90th Percentile £688 £675 £650
England median daily rate £525 £537 £525
% change year-on-year -2.14% +2.19% +2.44%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate £50.00 - £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 11,544 10,393 10,497
As % of all contract IT jobs advertised in London 25.35% 24.32% 23.24%
Number of daily rates quoted 8,592 7,551 7,577
London median daily rate £525 £500 £475
Median daily rate % change year-on-year +5.00% +5.26% +5.56%
10th Percentile £358 £338 £313
90th Percentile £675 £650 £638
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +6.25%
Number of hourly rates quoted 69 54 44
London median hourly rate £27.50 £28.39 £27.50
Median hourly rate % change year-on-year -3.13% +3.24% +10.00%
10th Percentile £19.50 £18.96 £17.05
90th Percentile £47.39 £58.75 £100.00
England median hourly rate £30.00 £30.00 £28.50
% change year-on-year - +5.26% +4.34%

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 20 August 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 20 August 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 +10 126 £550 -4.35% 37
West London +2 57 £525 - 13
East London -19 13 £575 - 3
South London -32 6 £588 +11.90%
Apache Cassandra
England

For the 6 months to 20 August 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.

1 302 (60.28%) Java
2 237 (47.31%) NoSQL
3 213 (42.51%) Agile Software Development
4 194 (38.72%) Docker
5 190 (37.92%) Kafka
6 179 (35.73%) Big Data
7 175 (34.93%) Amazon AWS
8 173 (34.53%) Apache Spark
9 159 (31.74%) Python
10 158 (31.54%) TDD
11 155 (30.94%) MongoDB
12 143 (28.54%) Scala
13 142 (28.34%) Microservices
14 132 (26.35%) Hadoop
15 127 (25.35%) Kubernetes
16 118 (23.55%) DevOps
17 116 (23.15%) Spring
17 116 (23.15%) Linux
18 107 (21.36%) Jenkins
19 106 (21.16%) Java 8
20 101 (20.16%) REST
21 100 (19.96%) Git (software)
22 96 (19.16%) Machine Learning
23 88 (17.56%) HBase
24 87 (17.37%) Continuous Integration
25 86 (17.17%) SQL
26 84 (16.77%) Finance
27 81 (16.17%) Scrum
28 78 (15.57%) BDD
29 76 (15.17%) Elasticsearch

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
1 173 (34.53%) Apache Spark
2 76 (15.17%) Elasticsearch
3 64 (12.77%) Apache
4 33 (6.59%) Apache Solr
5 19 (3.79%) Apache Pig
6 16 (3.19%) Tomcat
7 13 (2.59%) OpenStack
8 11 (2.20%) MQSeries
9 8 (1.60%) Confluence
10 7 (1.40%) nginx
11 4 (0.80%) Oracle SOA Suite
11 4 (0.80%) SAS
11 4 (0.80%) WildFly
12 3 (0.60%) JBoss
12 3 (0.60%) WebSphere
13 2 (0.40%) Cloud Foundry
13 2 (0.40%) Oracle Coherence
14 1 (0.20%) Apache Airflow
14 1 (0.20%) Jetty
14 1 (0.20%) Luigi
Applications
1 2 (0.40%) Microsoft Excel
2 1 (0.20%) Chatbot
Business Applications
1 2 (0.40%) Markit EDM
1 2 (0.40%) PolarLake
2 1 (0.20%) Dynamics GP
2 1 (0.20%) Payment Gateway
Cloud Services
1 175 (34.93%) Amazon AWS
2 26 (5.19%) Microsoft Azure
3 23 (4.59%) Amazon EC2
4 18 (3.59%) Amazon S3
5 17 (3.39%) Google Cloud Platform
6 14 (2.79%) GitHub
7 13 (2.59%) PaaS
8 12 (2.40%) Heroku
9 10 (2.00%) Cloud Computing
9 10 (2.00%) Datadog
10 8 (1.60%) SaaS
11 6 (1.20%) Amazon EMR
11 6 (1.20%) IaaS
12 5 (1.00%) Amazon Kinesis
12 5 (1.00%) Virtual Private Cloud
13 4 (0.80%) Akamai
13 4 (0.80%) Azure Active Directory
14 3 (0.60%) Slack
15 2 (0.40%) OpenShift
16 1 (0.20%) Amazon SQS
Communications & Networking
1 57 (11.38%) HTTP
2 37 (7.39%) SSL
2 37 (7.39%) TCP/IP
3 22 (4.39%) Kerberos
4 20 (3.99%) DNS
5 12 (2.40%) FTP
6 11 (2.20%) VPN
7 5 (1.00%) Firewall
7 5 (1.00%) SMTP
8 4 (0.80%) DOCSIS
8 4 (0.80%) Internet
9 3 (0.60%) SMS
9 3 (0.60%) X.509
Database & Business Intelligence
1 237 (47.31%) NoSQL
2 179 (35.73%) Big Data
3 155 (30.94%) MongoDB
4 132 (26.35%) Hadoop
5 88 (17.56%) HBase
6 73 (14.57%) Apache Hive
7 56 (11.18%) Relational Database
8 46 (9.18%) MySQL
9 41 (8.18%) Redis
10 31 (6.19%) Amazon Redshift
11 27 (5.39%) Data Warehouse
11 27 (5.39%) Impala
12 25 (4.99%) PostgreSQL
13 24 (4.79%) SQL Server
14 22 (4.39%) Data Lake
15 20 (3.99%) Riak
16 19 (3.79%) Amazon DynamoDB
17 16 (3.19%) Amazon RDS
18 15 (2.99%) Couchbase
19 14 (2.79%) RDBMS
Development Applications
1 107 (21.36%) Jenkins
2 100 (19.96%) Git (software)
3 66 (13.17%) Maven
4 40 (7.98%) Gradle
5 31 (6.19%) JUnit
6 24 (4.79%) Cucumber
6 24 (4.79%) GitLab
7 23 (4.59%) Mockito
8 17 (3.39%) JMeter
9 13 (2.59%) Gatling
9 13 (2.59%) gulp
9 13 (2.59%) Subversion
10 12 (2.40%) JIRA
10 12 (2.40%) Vagrant
11 10 (2.00%) Travis CI
12 9 (1.80%) CircleCI
13 8 (1.60%) TeamCity
14 7 (1.40%) GoCD
15 6 (1.20%) FishEye
15 6 (1.20%) SoapUI
General
1 84 (16.77%) Finance
2 36 (7.19%) Banking
3 27 (5.39%) Games
4 22 (4.39%) Telecoms
5 11 (2.20%) Front Office
6 10 (2.00%) Retail
7 8 (1.60%) Retail Banking
8 7 (1.40%) Investment Banking
8 7 (1.40%) Legal
8 7 (1.40%) Marketing
9 6 (1.20%) Prime Brokerage
10 5 (1.00%) Back Office
11 4 (0.80%) Publishing
12 3 (0.60%) Advertising
13 1 (0.20%) Automotive
Job Titles
1 275 (54.89%) Developer
2 143 (28.54%) Java Developer
3 62 (12.38%) Senior Developer
4 61 (12.18%) Scala Developer
5 45 (8.98%) Data Engineer
6 44 (8.78%) Architect
7 38 (7.58%) Big Data Developer
8 37 (7.39%) Senior Java Developer
9 34 (6.79%) DevOps Engineer
10 31 (6.19%) Data Architect
11 28 (5.59%) Big Data Engineer
12 21 (4.19%) Full Stack Developer
13 20 (3.99%) Big Data Architect
13 20 (3.99%) Lead Developer
14 19 (3.79%) Cassandra Developer
14 19 (3.79%) Senior Scala Developer
15 18 (3.59%) AWS Engineer
15 18 (3.59%) Lead Java Developer
15 18 (3.59%) Technical Leader
16 16 (3.19%) Java Engineer
Libraries, Frameworks & Software Standards
1 190 (37.92%) Kafka
2 116 (23.15%) Spring
3 101 (20.16%) REST
4 74 (14.77%) Web Services
5 71 (14.17%) RESTful
6 60 (11.98%) Spring Boot
7 49 (9.78%) AngularJS
8 48 (9.58%) Node.js
9 47 (9.38%) React
10 44 (8.78%) HTML
11 40 (7.98%) Akka
12 36 (7.19%) HTML5
12 36 (7.19%) Play Framework
13 35 (6.99%) CSS
14 34 (6.79%) Dropwizard
14 34 (6.79%) Hibernate
15 26 (5.19%) OAuth
16 25 (4.99%) Guice
16 25 (4.99%) Spark Streaming
17 23 (4.59%) Elastic Stack
Miscellaneous
1 44 (8.78%) Algorithms
2 40 (7.98%) Analytical Skills
3 34 (6.79%) Greenfield Project
4 28 (5.59%) Fintech
5 25 (4.99%) Computer Science
6 15 (2.99%) Mobile App
7 13 (2.59%) Data Centre
7 13 (2.59%) Fixed Income
8 11 (2.20%) Data Structures
9 10 (2.00%) Derivative
10 9 (1.80%) Enterprise Software
10 9 (1.80%) Replication
11 8 (1.60%) Equities
12 7 (1.40%) Foreign Exchange (FX)
12 7 (1.40%) Grid Computing
12 7 (1.40%) Self-Motivation
13 6 (1.20%) Linux Command Line
13 6 (1.20%) OTC Derivatives
13 6 (1.20%) Public Cloud
14 5 (1.00%) User Experience
Operating Systems
1 116 (23.15%) Linux
2 47 (9.38%) Unix
3 24 (4.79%) Red Hat Enterprise Linux
4 17 (3.39%) Android
4 17 (3.39%) Apple iOS
5 16 (3.19%) CentOS
6 12 (2.40%) Windows
7 9 (1.80%) Ubuntu
8 5 (1.00%) Windows Server
8 5 (1.00%) Windows Server 2008
9 1 (0.20%) DC/OS
Processes & Methodologies
1 213 (42.51%) Agile Software Development
2 158 (31.54%) TDD
3 142 (28.34%) Microservices
4 118 (23.55%) DevOps
5 96 (19.16%) Machine Learning
6 87 (17.37%) Continuous Integration
7 81 (16.17%) Scrum
8 78 (15.57%) BDD
9 68 (13.57%) Pair Programming
10 66 (13.17%) Software Engineering
11 58 (11.58%) Test Automation
12 55 (10.98%) Problem-Solving
13 46 (9.18%) Analytics
13 46 (9.18%) Continuous Delivery
14 44 (8.78%) Data Science
15 43 (8.58%) Business Intelligence
15 43 (8.58%) Open Source
16 39 (7.78%) Multithreading
17 34 (6.79%) Configuration Management
18 30 (5.99%) Data Modelling
Programming Languages
1 302 (60.28%) Java
2 159 (31.74%) Python
3 143 (28.54%) Scala
4 106 (21.16%) Java 8
5 86 (17.17%) SQL
6 65 (12.97%) JavaScript
7 32 (6.39%) Groovy
8 31 (6.19%) R
9 27 (5.39%) Ruby
10 26 (5.19%) Bash Shell
11 22 (4.39%) TypeScript
12 21 (4.19%) C#
13 20 (3.99%) C++
13 20 (3.99%) Shell Script
14 17 (3.39%) ES6
15 11 (2.20%) Java 9
15 11 (2.20%) Perl
16 10 (2.00%) MATLAB
17 9 (1.80%) C
18 6 (1.20%) Go
Qualifications
1 24 (4.79%) Degree
2 12 (2.40%) Computer Science Degree
3 10 (2.00%) PhD
4 5 (1.00%) Numerate Degree
5 4 (0.80%) Master's Degree
5 4 (0.80%) SC Cleared
5 4 (0.80%) Security Cleared
6 2 (0.40%) CISSP
7 1 (0.20%) CCA
7 1 (0.20%) CIPD
7 1 (0.20%) CISMP
Quality Assurance & Compliance
1 28 (5.59%) QA
2 11 (2.20%) Data Quality
3 7 (1.40%) GCP
4 2 (0.40%) GDPR
5 1 (0.20%) MiFID
5 1 (0.20%) PMO
System Software
1 194 (38.72%) Docker
2 44 (8.78%) HDFS
3 28 (5.59%) Apache Flume
4 18 (3.59%) Apache ZooKeeper
5 14 (2.79%) Active Directory
6 5 (1.00%) Virtual Machines
7 3 (0.60%) VirtualBox
7 3 (0.60%) VMware Infrastructure
8 2 (0.40%) Platform Symphony
9 1 (0.20%) Ceph
Systems Management
1 127 (25.35%) Kubernetes
2 57 (11.38%) Ansible
3 47 (9.38%) Terraform
4 27 (5.39%) Prometheus
5 22 (4.39%) Hadoop YARN
6 21 (4.19%) Mesos
6 21 (4.19%) Oozie
7 18 (3.59%) Docker Swarm
8 17 (3.39%) Puppet
9 10 (2.00%) Opscode Chef
10 8 (1.60%) ZABBIX
11 7 (1.40%) Ambari
11 7 (1.40%) Apache Slider
12 5 (1.00%) Galera Cluster
12 5 (1.00%) Kibana
12 5 (1.00%) Marathon
12 5 (1.00%) Nagios
12 5 (1.00%) Salt
13 4 (0.80%) linkerd
13 4 (0.80%) Rancher
Vendors
1 43 (8.58%) Hortonworks
2 37 (7.39%) Oracle
3 30 (5.99%) Cloudera
4 23 (4.59%) Google
5 14 (2.79%) AppDynamics
6 12 (2.40%) MapR
6 12 (2.40%) SaltStack
6 12 (2.40%) Tableau
7 11 (2.20%) Apigee
8 10 (2.00%) IBM
9 8 (1.60%) Atlassian
10 7 (1.40%) Splunk
11 6 (1.20%) SOASTA, Inc
11 6 (1.20%) Sybase
12 5 (1.00%) Microsoft
12 5 (1.00%) New Relic
12 5 (1.00%) Percona
13 4 (0.80%) Bloomberg
13 4 (0.80%) Red Hat
13 4 (0.80%) Teradata