Period
to 23 November 2017

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 23 November 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
England > London
6 months to
23 Nov 2017
Same period 2016 Same period 2015
Rank 262 268 315
Rank change year-on-year +6 +47 +9
Contract jobs citing Apache Cassandra 482 426 338
As % of all contract IT jobs advertised in London 1.02% 0.94% 0.73%
As % of the Database & Business Intelligence category 4.30% 4.04% 3.01%
Number of daily rates quoted 400 344 273
London median daily rate £555 £525 £513
Median daily rate % change year-on-year +5.71% +2.44% +2.50%
10th Percentile £438 £400 £413
90th Percentile £675 £675 £625
England median daily rate £550 £525 £525
% change year-on-year +4.76% - +5.00%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate - £38.75 -

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 11221 10532 11240
As % of all contract IT jobs advertised in London 23.82% 23.30% 24.12%
Number of daily rates quoted 8339 7465 8017
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +5.88%
10th Percentile £355 £325 £305
90th Percentile £663 £638 £625
England median daily rate £460 £425 £413
% change year-on-year +8.24% +3.03% +3.13%
Number of hourly rates quoted 62 39 75
London median hourly rate £26.88 £29.88 £22.50
Median hourly rate % change year-on-year -10.03% +32.80% -18.18%
10th Percentile £18.28 £15.25 £14.85
90th Percentile £58.75 £84.40 £92.00
England median hourly rate £32.00 £28.00 £27.50
% change year-on-year +14.29% +1.82% +11.11%

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 23 November 2017.

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 23 November 2017. 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 -32 79 £600 +14.29% 13
West London +26 42 £550 +5.77% 9
East London +4 14 £588 +2.17% 2
South London - 4 £500 -
Apache Cassandra
England

For the 6 months to 23 November 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 London region with a requirement for Apache Cassandra.

1 337 (69.92%) Java
2 281 (58.30%) NoSQL
3 249 (51.66%) Agile Software Development
4 227 (47.10%) Kafka
5 203 (42.12%) Scala
6 180 (37.34%) MongoDB
7 175 (36.31%) Apache Spark
8 161 (33.40%) Amazon AWS
9 156 (32.37%) TDD
9 156 (32.37%) Microservices
10 154 (31.95%) DevOps
11 152 (31.54%) Python
12 151 (31.33%) Big Data
13 145 (30.08%) SQL
14 139 (28.84%) Hadoop
15 137 (28.42%) Continuous Integration
16 125 (25.93%) Docker
17 123 (25.52%) Linux
18 118 (24.48%) Elasticsearch
19 112 (23.24%) RESTful
20 106 (21.99%) BDD
21 102 (21.16%) Spring
22 97 (20.12%) Unix
23 93 (19.29%) Scrum
23 93 (19.29%) Jenkins
24 92 (19.09%) JavaScript
25 81 (16.80%) Finance
26 80 (16.60%) Elastic Stack
27 79 (16.39%) Akka
28 78 (16.18%) Git (software)

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
1 175 (36.31%) Apache Spark
2 118 (24.48%) Elasticsearch
3 73 (15.15%) Apache
4 29 (6.02%) Apache Solr
5 28 (5.81%) Apache Pig
6 8 (1.66%) Confluence
6 8 (1.66%) OpenStack
7 7 (1.45%) Apache Airflow
7 7 (1.45%) Tomcat
8 6 (1.24%) Jetty
8 6 (1.24%) Oracle Coherence
9 4 (0.83%) JBoss
9 4 (0.83%) MQSeries
10 3 (0.62%) Cloud Foundry
10 3 (0.62%) DataSynapse
10 3 (0.62%) nginx
10 3 (0.62%) Oracle SOA Suite
11 2 (0.41%) CMS
11 2 (0.41%) SAS
11 2 (0.41%) Sitecore CMS
Applications
1 1 (0.21%) Microsoft Excel
Business Applications
1 2 (0.41%) Payment Gateway
2 1 (0.21%) BASE24
Cloud Services
1 161 (33.40%) Amazon AWS
2 26 (5.39%) Amazon S3
3 25 (5.19%) Microsoft Azure
4 23 (4.77%) Amazon EMR
5 20 (4.15%) Amazon EC2
6 16 (3.32%) Google Cloud Platform
7 11 (2.28%) GitHub
8 10 (2.07%) Amazon Kinesis
8 10 (2.07%) AWS CloudFormation
8 10 (2.07%) Google Play
9 7 (1.45%) SaaS
10 6 (1.24%) Amazon SQS
11 5 (1.04%) Route 53
12 4 (0.83%) Amazon Glacier
12 4 (0.83%) PaaS
13 3 (0.62%) Amazon CloudWatch
13 3 (0.62%) Twilio
14 2 (0.41%) AWS CloudTrail
14 2 (0.41%) Cloud Computing
14 2 (0.41%) Virtual Private Cloud
Communications & Networking
1 42 (8.71%) HTTP
2 16 (3.32%) TCP/IP
3 13 (2.70%) Internet
4 9 (1.87%) Firewall
5 6 (1.24%) LDAP
6 4 (0.83%) HTTPS
7 3 (0.62%) DNS
7 3 (0.62%) LAN
7 3 (0.62%) WAN
8 2 (0.41%) Kerberos
8 2 (0.41%) Network Security
8 2 (0.41%) SSL
8 2 (0.41%) ZigBee
9 1 (0.21%) VLAN
Database & Business Intelligence
1 281 (58.30%) NoSQL
2 180 (37.34%) MongoDB
3 151 (31.33%) Big Data
4 139 (28.84%) Hadoop
5 66 (13.69%) HBase
6 63 (13.07%) Apache Hive
7 56 (11.62%) MySQL
8 47 (9.75%) Relational Database
9 38 (7.88%) Amazon DynamoDB
10 34 (7.05%) PostgreSQL
11 27 (5.60%) Impala
12 26 (5.39%) Data Warehouse
12 26 (5.39%) Flink
13 22 (4.56%) SQL Server
14 21 (4.36%) Couchbase
15 19 (3.94%) Redis
16 18 (3.73%) Neo4j
17 17 (3.53%) CouchDB
18 14 (2.90%) Amazon RDS
19 13 (2.70%) Riak
Development Applications
1 93 (19.29%) Jenkins
2 78 (16.18%) Git (software)
3 51 (10.58%) Mockito
4 45 (9.34%) Maven
5 32 (6.64%) Cucumber
6 23 (4.77%) Gradle
7 21 (4.36%) JUnit
8 19 (3.94%) Hudson
8 19 (3.94%) JIRA
9 14 (2.90%) Bitbucket
9 14 (2.90%) Selenium
9 14 (2.90%) SonarQube
10 13 (2.70%) JMeter
11 12 (2.49%) TeamCity
12 9 (1.87%) GoCD
13 8 (1.66%) Subversion
14 7 (1.45%) Appium
15 6 (1.24%) Atlassian Bamboo
15 6 (1.24%) IBM UrbanCode
15 6 (1.24%) TestNG
General
1 81 (16.80%) Finance
2 68 (14.11%) Banking
3 31 (6.43%) Games
4 15 (3.11%) Publishing
5 11 (2.28%) Front Office
6 10 (2.07%) Advertising
6 10 (2.07%) Investment Banking
7 7 (1.45%) Marketing
8 5 (1.04%) Telecoms
9 3 (0.62%) Retail
10 2 (0.41%) Electronics
10 2 (0.41%) Financial Institution
10 2 (0.41%) Manufacturing
10 2 (0.41%) Private Banking
10 2 (0.41%) Retail Banking
11 1 (0.21%) Billing
11 1 (0.21%) Legal
Job Titles
1 267 (55.39%) Developer
2 119 (24.69%) Java Developer
3 91 (18.88%) Scala Developer
4 57 (11.83%) Data Engineer
5 50 (10.37%) Senior Developer
6 47 (9.75%) Big Data Developer
7 42 (8.71%) DevOps Engineer
8 35 (7.26%) Architect
8 35 (7.26%) AWS Engineer
8 35 (7.26%) Big Data Engineer
9 31 (6.43%) Java Scala Developer
10 25 (5.19%) Agile Developer
10 25 (5.19%) AWS DevOps
11 24 (4.98%) AWS DevOps Engineer
12 23 (4.77%) Agile Java Developer
13 22 (4.56%) Senior Java Developer
14 19 (3.94%) Data Architect
14 19 (3.94%) Python Developer
15 18 (3.73%) Senior Scala Developer
15 18 (3.73%) Software Engineer
Libraries, Frameworks & Software Standards
1 227 (47.10%) Kafka
2 112 (23.24%) RESTful
3 102 (21.16%) Spring
4 80 (16.60%) Elastic Stack
5 79 (16.39%) Akka
6 76 (15.77%) Web Services
7 72 (14.94%) REST
8 57 (11.83%) Node.js
9 48 (9.96%) HTML
10 42 (8.71%) Hibernate
10 42 (8.71%) React
11 38 (7.88%) HTML5
12 37 (7.68%) Play Framework
13 35 (7.26%) Spring Boot
14 34 (7.05%) AngularJS
15 33 (6.85%) Spark Streaming
16 32 (6.64%) JSON
17 29 (6.02%) RabbitMQ
18 26 (5.39%) CSS
19 22 (4.56%) XML
Miscellaneous
1 47 (9.75%) Greenfield Project
2 39 (8.09%) Fintech
3 32 (6.64%) Algorithms
4 30 (6.22%) Data Structures
5 29 (6.02%) Analytical Skills
6 17 (3.53%) Mobile App
6 17 (3.53%) User Experience
7 15 (3.11%) Computer Science
8 11 (2.28%) Replication
9 10 (2.07%) Blog
10 9 (1.87%) Foreign Exchange (FX)
11 8 (1.66%) Fixed Income
12 7 (1.45%) Data Centre
12 7 (1.45%) Derivative
13 6 (1.24%) Credit Risk
13 6 (1.24%) Grid Computing
13 6 (1.24%) Management Information System
13 6 (1.24%) Market Risk
14 5 (1.04%) Interest Rate Derivative
15 4 (0.83%) EPoS
Operating Systems
1 123 (25.52%) Linux
2 97 (20.12%) Unix
3 22 (4.56%) CentOS
4 20 (4.15%) Windows
5 19 (3.94%) Android
5 19 (3.94%) Apple iOS
5 19 (3.94%) Red Hat Enterprise Linux
6 15 (3.11%) Mac OS X
7 7 (1.45%) Windows Server
8 5 (1.04%) CoreOS
9 4 (0.83%) Ubuntu
10 2 (0.41%) Debian
11 1 (0.21%) Fedora
11 1 (0.21%) Solaris
11 1 (0.21%) VMS
Processes & Methodologies
1 249 (51.66%) Agile Software Development
2 156 (32.37%) Microservices
2 156 (32.37%) TDD
3 154 (31.95%) DevOps
4 137 (28.42%) Continuous Integration
5 106 (21.99%) BDD
6 93 (19.29%) Scrum
7 75 (15.56%) Pair Programming
8 74 (15.35%) Open Source
9 70 (14.52%) Software Engineering
10 63 (13.07%) Machine Learning
11 61 (12.66%) Analytics
12 56 (11.62%) Kanban
13 54 (11.20%) High Availability
14 53 (11.00%) Domain-Driven Design
15 43 (8.92%) MapReduce
16 37 (7.68%) ETL
16 37 (7.68%) Test Automation
17 30 (6.22%) Multithreading
18 27 (5.60%) OO
Programming Languages
1 337 (69.92%) Java
2 203 (42.12%) Scala
3 152 (31.54%) Python
4 145 (30.08%) SQL
5 92 (19.09%) JavaScript
6 42 (8.71%) Bash Shell
7 26 (5.39%) C#
7 26 (5.39%) Groovy
8 24 (4.98%) Ruby
9 22 (4.56%) GraphQL
10 20 (4.15%) Objective-C
11 19 (3.94%) Go
12 18 (3.73%) R
13 16 (3.32%) Shell Script
14 15 (3.11%) ES6
15 14 (2.90%) Perl
16 13 (2.70%) Clojure
17 10 (2.07%) PHP
18 6 (1.24%) PL/SQL
19 5 (1.04%) C++
Qualifications
1 26 (5.39%) Degree
2 16 (3.32%) Computer Science Degree
3 8 (1.66%) Numerate Degree
4 3 (0.62%) CCNA
4 3 (0.62%) CCSA
4 3 (0.62%) Cisco Certification
4 3 (0.62%) CISM
4 3 (0.62%) CISSP
4 3 (0.62%) JNCIA
5 2 (0.41%) Master's Degree
6 1 (0.21%) MySQL Certification
6 1 (0.21%) Security Cleared
Quality Assurance & Compliance
1 7 (1.45%) QA
2 3 (0.62%) ISO/IEC 27001
2 3 (0.62%) PCI DSS
3 2 (0.41%) GCP
4 1 (0.21%) COBIT
4 1 (0.21%) Data Quality
4 1 (0.21%) MiFID
4 1 (0.21%) SLA
4 1 (0.21%) WCAG
System Software
1 125 (25.93%) Docker
2 47 (9.75%) HDFS
3 20 (4.15%) Apache Flume
3 20 (4.15%) Apache ZooKeeper
4 4 (0.83%) LXC
5 3 (0.62%) Active Directory
5 3 (0.62%) Platform Symphony
5 3 (0.62%) VirtualBox
5 3 (0.62%) vSphere
6 2 (0.41%) Ceph
6 2 (0.41%) Firmware
6 2 (0.41%) KVM
6 2 (0.41%) VMware Infrastructure
7 1 (0.21%) GridGain
7 1 (0.21%) Oracle RAC
7 1 (0.21%) Squid
7 1 (0.21%) Virtual Machines
7 1 (0.21%) Xen
Systems Management
1 68 (14.11%) Kibana
2 66 (13.69%) logstash
3 59 (12.24%) Kubernetes
4 52 (10.79%) Puppet
5 49 (10.17%) Grafana
6 36 (7.47%) Ansible
6 36 (7.47%) Terraform
7 21 (4.36%) Opscode Chef
8 15 (3.11%) Prometheus
9 14 (2.90%) Hadoop YARN
10 11 (2.28%) Packer
11 10 (2.07%) Mesos
11 10 (2.07%) Oozie
12 9 (1.87%) Nagios
13 5 (1.04%) ZABBIX
14 4 (0.83%) Graphite
14 4 (0.83%) HAProxy
14 4 (0.83%) HP SiteScope
14 4 (0.83%) Salt
15 3 (0.62%) Docker Swarm
Vendors
1 65 (13.49%) Splunk
2 56 (11.62%) AppDynamics
3 37 (7.68%) Oracle
4 17 (3.53%) Google
5 16 (3.32%) Cloudera
5 16 (3.32%) Hortonworks
6 14 (2.90%) Apple
7 12 (2.49%) IBM
7 12 (2.49%) Teradata
8 7 (1.45%) MapR
8 7 (1.45%) Microsoft
9 6 (1.24%) hybris
9 6 (1.24%) SaltStack
9 6 (1.24%) VMware
10 5 (1.04%) Informatica
10 5 (1.04%) Talend
11 4 (0.83%) Facebook
11 4 (0.83%) HP
11 4 (0.83%) Salesforce.com
11 4 (0.83%) Tableau