Job Vacancy Trend Daily Rate Trend Daily Rate Histogram Job Locations Skill Sets
Period
to 18 November 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 18 November 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
18 Nov 2018		 Same period 2017 Same period 2016
Rank 234 270 269
Rank change year-on-year +36 -1 +55
Contract jobs citing Apache Cassandra 537 463 423
As % of all contract IT jobs advertised in London 1.18% 0.99% 0.94%
As % of the Database & Business Intelligence category 4.83% 4.19% 4.02%
Number of daily rates quoted 426 379 341
London median daily rate £575 £575 £525
Median daily rate % change year-on-year - +9.52% +2.44%
10th Percentile £425 £425 £400
90th Percentile £700 £675 £675
England median daily rate £550 £550 £525
% change year-on-year - +4.76% -
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate £22.50 - £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 11,122 11,060 10,527
As % of all contract IT jobs advertised in London 24.37% 23.76% 23.27%
Number of daily rates quoted 8,292 8,200 7,481
London median daily rate £525 £500 £475
Median daily rate % change year-on-year +5.00% +5.26% +5.56%
10th Percentile £363 £353 £320
90th Percentile £675 £660 £638
England median daily rate £475 £455 £425
% change year-on-year +4.40% +7.06% +3.03%
Number of hourly rates quoted 49 59 38
London median hourly rate £27.50 £26.61 £30.94
Median hourly rate % change year-on-year +3.36% -14.01% +37.51%
10th Percentile £16.05 £18.20 £15.25
90th Percentile £49.70 £58.75 £86.23
England median hourly rate £35.00 £31.50 £28.00
% change year-on-year +11.11% +12.50% -

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 18 November 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 18 November 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 +17 120 £575 -4.17% 30
West London +8 51 £550 - 24
East London 0 35 £600 +2.13% 11
South London -8 6 £638 +27.50% 1
Apache Cassandra
England

For the 6 months to 18 November 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.

1 344 (64.06%) Java
2 282 (52.51%) NoSQL
3 259 (48.23%) Agile Software Development
4 246 (45.81%) Docker
5 214 (39.85%) Kafka
6 208 (38.73%) Microservices
7 196 (36.50%) MongoDB
8 181 (33.71%) Amazon AWS
9 177 (32.96%) Kubernetes
10 174 (32.40%) DevOps
11 166 (30.91%) TDD
12 155 (28.86%) Spring
13 154 (28.68%) Apache Spark
14 150 (27.93%) Java 8
15 142 (26.44%) Big Data
16 138 (25.70%) Python
17 124 (23.09%) Scala
18 121 (22.53%) Hadoop
19 118 (21.97%) Jenkins
20 117 (21.79%) Spring Boot
21 110 (20.48%) Git (software)
22 104 (19.37%) Linux
23 101 (18.81%) REST
24 98 (18.25%) Finance
25 93 (17.32%) BDD
26 85 (15.83%) Web Services
27 82 (15.27%) Ansible
28 80 (14.90%) Scrum
28 80 (14.90%) Test Automation
29 78 (14.53%) HBase

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
1 154 (28.68%) Apache Spark
2 63 (11.73%) Elasticsearch
3 52 (9.68%) Apache
4 29 (5.40%) Apache Solr
5 28 (5.21%) OpenStack
6 21 (3.91%) Apache Pig
6 21 (3.91%) MQSeries
7 8 (1.49%) CMS
7 8 (1.49%) Confluence
7 8 (1.49%) Tomcat
8 4 (0.74%) Oracle SOA Suite
9 2 (0.37%) Apache Qpid
9 2 (0.37%) K2 blackpearl
9 2 (0.37%) SharePoint
9 2 (0.37%) SharePoint 2013
9 2 (0.37%) WebSphere
10 1 (0.19%) Cloud Foundry
10 1 (0.19%) DataSynapse
10 1 (0.19%) nginx
10 1 (0.19%) WebSphere Application Server
Applications
1 2 (0.37%) Microsoft Excel
1 2 (0.37%) SPSS
Business Applications
1 3 (0.56%) SAP MM
1 3 (0.56%) SAP Oil and Gas
1 3 (0.56%) SAP R/3
2 2 (0.37%) Markit EDM
2 2 (0.37%) PolarLake
3 1 (0.19%) Dynamics GP
3 1 (0.19%) Payment Gateway
3 1 (0.19%) R3 Corda
Cloud Services
1 181 (33.71%) Amazon AWS
2 39 (7.26%) Microsoft Azure
3 24 (4.47%) Google Cloud Platform
4 20 (3.72%) GitHub
5 19 (3.54%) Amazon EC2
6 17 (3.17%) PaaS
7 15 (2.79%) Amazon Kinesis
8 13 (2.42%) Heroku
9 11 (2.05%) SaaS
10 9 (1.68%) Amazon S3
10 9 (1.68%) IaaS
11 7 (1.30%) AWS Lambda
11 7 (1.30%) OpenShift
11 7 (1.30%) Serverless
12 6 (1.12%) Datadog
13 5 (0.93%) Apigee
14 4 (0.74%) Amazon EMR
15 3 (0.56%) Akamai
15 3 (0.56%) Azure Machine Learning
15 3 (0.56%) Slack
Communications & Networking
1 36 (6.70%) HTTP
2 30 (5.59%) SSL
3 25 (4.66%) TCP/IP
4 21 (3.91%) DNS
5 19 (3.54%) Kerberos
6 18 (3.35%) Firewall
7 13 (2.42%) FTP
8 10 (1.86%) VLAN
9 8 (1.49%) SSH
9 8 (1.49%) VPN
10 5 (0.93%) SMTP
11 4 (0.74%) DOCSIS
11 4 (0.74%) Internet
12 1 (0.19%) LAN
12 1 (0.19%) Skype
12 1 (0.19%) WAN
Database & Business Intelligence
1 282 (52.51%) NoSQL
2 196 (36.50%) MongoDB
3 142 (26.44%) Big Data
4 121 (22.53%) Hadoop
5 78 (14.53%) HBase
6 67 (12.48%) Relational Database
7 64 (11.92%) MySQL
8 55 (10.24%) Redis
9 50 (9.31%) Apache Hive
10 34 (6.33%) PostgreSQL
10 34 (6.33%) RDBMS
11 33 (6.15%) SQL Server
12 28 (5.21%) Couchbase
12 28 (5.21%) Riak
13 23 (4.28%) Amazon DynamoDB
14 20 (3.72%) Data Warehouse
15 17 (3.17%) Data Lake
15 17 (3.17%) Impala
16 15 (2.79%) Amazon RDS
17 12 (2.23%) Sqoop
Development Applications
1 118 (21.97%) Jenkins
2 110 (20.48%) Git (software)
3 78 (14.53%) Maven
4 40 (7.45%) Gradle
5 29 (5.40%) GitLab
6 19 (3.54%) JUnit
7 17 (3.17%) Cucumber
7 17 (3.17%) JMeter
8 15 (2.79%) Gatling
9 14 (2.61%) gulp
9 14 (2.61%) Vagrant
10 12 (2.23%) Artifactory
10 12 (2.23%) JIRA
10 12 (2.23%) Mockito
11 11 (2.05%) Bitbucket
11 11 (2.05%) Visual Studio Team System
12 10 (1.86%) GoCD
12 10 (1.86%) LoadRunner
12 10 (1.86%) Subversion
12 10 (1.86%) Travis CI
General
1 98 (18.25%) Finance
2 44 (8.19%) Banking
3 18 (3.35%) Legal
4 17 (3.17%) Telecoms
5 13 (2.42%) Retail
6 10 (1.86%) Front Office
6 10 (1.86%) Games
7 8 (1.49%) Marketing
8 7 (1.30%) Back Office
9 6 (1.12%) Investment Banking
10 5 (0.93%) Prime Brokerage
10 5 (0.93%) Retail Banking
11 4 (0.74%) Publishing
12 3 (0.56%) Advertising
12 3 (0.56%) Manufacturing
12 3 (0.56%) Multimedia
13 2 (0.37%) Retail Finance
14 1 (0.19%) Automotive
Job Titles
1 296 (55.12%) Developer
2 172 (32.03%) Java Developer
3 80 (14.90%) Senior Developer
4 60 (11.17%) DevOps Engineer
5 53 (9.87%) Data Engineer
6 51 (9.50%) Senior Java Developer
7 41 (7.64%) Full Stack Developer
8 40 (7.45%) Architect
8 40 (7.45%) Scala Developer
9 33 (6.15%) Big Data Engineer
10 32 (5.96%) Lead Developer
10 32 (5.96%) Lead Java Developer
11 31 (5.77%) Big Data Developer
12 29 (5.40%) AWS Developer
13 26 (4.84%) Cassandra Engineer
14 25 (4.66%) Data Architect
15 24 (4.47%) Cassandra Developer
16 21 (3.91%) Apache Spark Developer
16 21 (3.91%) React Developer
16 21 (3.91%) Team Leader
Libraries, Frameworks & Software Standards
1 214 (39.85%) Kafka
2 155 (28.86%) Spring
3 117 (21.79%) Spring Boot
4 101 (18.81%) REST
5 85 (15.83%) Web Services
6 77 (14.34%) RESTful
7 68 (12.66%) AngularJS
8 66 (12.29%) HTML
9 62 (11.55%) Node.js
10 60 (11.17%) CSS
11 58 (10.80%) React
12 54 (10.06%) Hibernate
13 52 (9.68%) HTML5
14 33 (6.15%) Play Framework
15 32 (5.96%) CSS3
16 31 (5.77%) JMS
17 29 (5.40%) Twitter Bootstrap
18 28 (5.21%) Akka
19 27 (5.03%) MEAN Stack
20 25 (4.66%) RabbitMQ
Miscellaneous
1 47 (8.75%) Greenfield Project
2 31 (5.77%) Algorithms
2 31 (5.77%) Computer Science
3 27 (5.03%) Fintech
4 26 (4.84%) Analytical Skills
5 15 (2.79%) Data Structures
6 11 (2.05%) Clustering
6 11 (2.05%) Data Centre
6 11 (2.05%) Public Cloud
6 11 (2.05%) Self-Motivation
7 10 (1.86%) Fixed Income
7 10 (1.86%) Linux Command Line
8 9 (1.68%) Replication
9 7 (1.30%) Derivative
10 5 (0.93%) Enterprise Software
10 5 (0.93%) Equities
10 5 (0.93%) Foreign Exchange (FX)
10 5 (0.93%) OTC Derivatives
11 4 (0.74%) Digital TV
11 4 (0.74%) Internet of Things
Operating Systems
1 104 (19.37%) Linux
2 35 (6.52%) Unix
3 24 (4.47%) Red Hat Enterprise Linux
4 13 (2.42%) CentOS
5 6 (1.12%) Windows
6 5 (0.93%) Apple iOS
7 4 (0.74%) Android
8 2 (0.37%) DC/OS
9 1 (0.19%) Ubuntu
Processes & Methodologies
1 259 (48.23%) Agile Software Development
2 208 (38.73%) Microservices
3 174 (32.40%) DevOps
4 166 (30.91%) TDD
5 93 (17.32%) BDD
6 80 (14.90%) Scrum
6 80 (14.90%) Test Automation
7 62 (11.55%) Continuous Integration
7 62 (11.55%) Machine Learning
8 55 (10.24%) Problem-Solving
9 54 (10.06%) Software Engineering
10 53 (9.87%) Pair Programming
11 51 (9.50%) Open Source
12 44 (8.19%) Data Science
13 43 (8.01%) Business Intelligence
13 43 (8.01%) Continuous Delivery
14 41 (7.64%) Configuration Management
15 36 (6.70%) Analytics
16 35 (6.52%) Kanban
17 34 (6.33%) Performance Tuning
Programming Languages
1 344 (64.06%) Java
2 150 (27.93%) Java 8
3 138 (25.70%) Python
4 124 (23.09%) Scala
5 74 (13.78%) JavaScript
6 68 (12.66%) SQL
7 33 (6.15%) Bash Shell
8 24 (4.47%) C#
9 21 (3.91%) Java 9
9 21 (3.91%) TypeScript
10 20 (3.72%) Ruby
11 19 (3.54%) C++
12 16 (2.98%) Go
13 15 (2.79%) R
14 14 (2.61%) ES6
15 12 (2.23%) Shell Script
16 10 (1.86%) Perl
17 8 (1.49%) Groovy
18 7 (1.30%) C
18 7 (1.30%) MATLAB
Qualifications
1 31 (5.77%) Degree
2 7 (1.30%) PhD
2 7 (1.30%) Security Cleared
3 6 (1.12%) Master's Degree
4 3 (0.56%) Computer Science Degree
4 3 (0.56%) SC Cleared
5 2 (0.37%) CEH
5 2 (0.37%) CISSP
5 2 (0.37%) PMI Certification
6 1 (0.19%) CCA
6 1 (0.19%) CISMP
Quality Assurance & Compliance
1 10 (1.86%) Data Quality
1 10 (1.86%) QA
2 4 (0.74%) PSD2
3 2 (0.37%) GDPR
4 1 (0.19%) ISO/IEC 27001
4 1 (0.19%) PMO
4 1 (0.19%) SLA
System Software
1 246 (45.81%) Docker
2 30 (5.59%) Apache Flume
3 27 (5.03%) HDFS
4 21 (3.91%) Apache ZooKeeper
5 18 (3.35%) Active Directory
5 18 (3.35%) VMware Infrastructure
6 15 (2.79%) Xen
7 10 (1.86%) NFS
8 7 (1.30%) Virtual Machines
9 3 (0.56%) KVM
9 3 (0.56%) VirtualBox
10 2 (0.37%) Ceph
11 1 (0.19%) Oracle RAC
11 1 (0.19%) Squid
Systems Management
1 177 (32.96%) Kubernetes
2 82 (15.27%) Ansible
3 69 (12.85%) Terraform
4 30 (5.59%) Puppet
5 26 (4.84%) Docker Swarm
6 24 (4.47%) Mesos
7 23 (4.28%) Prometheus
8 20 (3.72%) Hadoop YARN
9 14 (2.61%) Opscode Chef
10 11 (2.05%) Oozie
11 10 (1.86%) ITRS Geneos
11 10 (1.86%) linkerd
12 7 (1.30%) Grafana
13 6 (1.12%) Marathon
14 5 (0.93%) Ambari
14 5 (0.93%) Kibana
14 5 (0.93%) Rancher
14 5 (0.93%) Salt
15 4 (0.74%) Istio
15 4 (0.74%) ZABBIX
Vendors
1 70 (13.04%) Oracle
2 30 (5.59%) Hortonworks
3 21 (3.91%) Cloudera
4 18 (3.35%) VMware
5 17 (3.17%) AppDynamics
6 15 (2.79%) Splunk
7 14 (2.61%) Red Hat
8 13 (2.42%) Google
8 13 (2.42%) Microsoft
9 11 (2.05%) MapR
10 10 (1.86%) SOASTA, Inc
11 7 (1.30%) Atlassian
11 7 (1.30%) Talend
12 6 (1.12%) New Relic
12 6 (1.12%) SaltStack
13 5 (0.93%) SAP
13 5 (0.93%) Sybase
13 5 (0.93%) Tableau
14 4 (0.74%) Bloomberg
14 4 (0.74%) IBM