Job Vacancy Trend Daily Rate Trend Daily Rate Histogram Job Locations Skill Sets
Period
to 21 January 2019

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 21 January 2019 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
21 Jan 2019		 Same period 2018 Same period 2017
Rank 222 281 262
Rank change year-on-year +59 -19 -20
Contract jobs citing Apache Cassandra 558 442 410
As % of all contract IT jobs advertised in London 1.26% 0.97% 0.99%
As % of the Database & Business Intelligence category 5.23% 4.06% 4.11%
Number of daily rates quoted 439 363 330
London median daily rate £575 £550 £539
Median daily rate % change year-on-year +4.55% +2.09% +2.62%
10th Percentile £461 £455 £413
90th Percentile £675 £650 £676
England median daily rate £550 £535 £525
% change year-on-year +2.80% +1.90% -
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate - - £22.50

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 10,664 10,881 9,965
As % of all contract IT jobs advertised in London 24.13% 23.76% 24.02%
Number of daily rates quoted 7,886 8,192 7,071
London median daily rate £525 £500 £475
Median daily rate % change year-on-year +5.00% +5.26% +5.56%
10th Percentile £363 £353 £325
90th Percentile £675 £650 £638
England median daily rate £483 £473 £430
% change year-on-year +2.17% +9.88% +1.18%
Number of hourly rates quoted 45 59 46
London median hourly rate £30.00 £26.78 £33.25
Median hourly rate % change year-on-year +12.04% -19.47% -2.21%
10th Percentile £19.06 £17.19 £15.25
90th Percentile £47.50 £58.75 £65.00
England median hourly rate £35.00 £31.15 £27.50
% change year-on-year +12.36% +13.27% -8.33%

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 21 January 2019.

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 21 January 2019. 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 +27 118 £575 +6.98% 38
East London +13 68 £575 -4.17% 6
West London +31 58 £575 +4.55% 23
South London +2 3 £650 +36.84%
Apache Cassandra
England

For the 6 months to 21 January 2019, 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.

1 377 (67.56%) Java
2 305 (54.66%) NoSQL
3 285 (51.08%) Agile Software Development
4 250 (44.80%) Docker
5 246 (44.09%) Microservices
6 244 (43.73%) MongoDB
7 222 (39.78%) Kafka
8 221 (39.61%) Amazon AWS
9 212 (37.99%) TDD
10 193 (34.59%) Kubernetes
11 168 (30.11%) Spring
12 162 (29.03%) DevOps
13 161 (28.85%) Java 8
14 157 (28.14%) Python
15 152 (27.24%) Big Data
16 143 (25.63%) Scala
16 143 (25.63%) Apache Spark
17 139 (24.91%) Jenkins
18 131 (23.48%) Spring Boot
19 127 (22.76%) Web Services
20 120 (21.51%) RESTful
21 119 (21.33%) Hadoop
21 119 (21.33%) BDD
22 112 (20.07%) JavaScript
23 111 (19.89%) REST
24 105 (18.82%) Git (software)
25 102 (18.28%) SQL
25 102 (18.28%) Finance
26 98 (17.56%) Test Automation
27 90 (16.13%) Maven

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
1 143 (25.63%) Apache Spark
2 57 (10.22%) Apache
2 57 (10.22%) Elasticsearch
3 32 (5.73%) Confluence
4 30 (5.38%) MQSeries
5 22 (3.94%) Apache Pig
6 21 (3.76%) OpenStack
7 17 (3.05%) Apache Solr
8 9 (1.61%) CMS
9 8 (1.43%) Tomcat
10 7 (1.25%) SAS
11 5 (0.90%) Cloud Foundry
11 5 (0.90%) Jetty
12 4 (0.72%) Apache Airflow
12 4 (0.72%) Oracle SOA Suite
13 3 (0.54%) Apache Qpid
13 3 (0.54%) Luigi
14 2 (0.36%) K2 blackpearl
14 2 (0.36%) nginx
14 2 (0.36%) SharePoint 2013
Applications
1 6 (1.08%) Microsoft Excel
2 2 (0.36%) MS Visio
2 2 (0.36%) SPSS
Business Applications
1 3 (0.54%) SAP MM
1 3 (0.54%) SAP Oil and Gas
1 3 (0.54%) SAP R/3
2 2 (0.36%) Markit EDM
2 2 (0.36%) PolarLake
3 1 (0.18%) Dynamics NAV
3 1 (0.18%) Eloqua
3 1 (0.18%) Payment Gateway
3 1 (0.18%) R3 Corda
Cloud Services
1 221 (39.61%) Amazon AWS
2 66 (11.83%) Microsoft Azure
3 57 (10.22%) Google Cloud Platform
4 34 (6.09%) SaaS
5 21 (3.76%) Amazon Kinesis
6 20 (3.58%) GitHub
7 19 (3.41%) PaaS
8 18 (3.23%) Heroku
9 15 (2.69%) Serverless
10 14 (2.51%) Amazon S3
11 13 (2.33%) Apigee
12 12 (2.15%) IaaS
13 10 (1.79%) AWS Lambda
14 9 (1.61%) OpenShift
15 7 (1.25%) Amazon EC2
15 7 (1.25%) Amazon EMR
16 5 (0.90%) Datadog
17 4 (0.72%) Amazon SQS
17 4 (0.72%) Cloud Computing
18 3 (0.54%) Azure Active Directory
Communications & Networking
1 40 (7.17%) HTTP
2 35 (6.27%) SSL
3 25 (4.48%) TCP/IP
4 23 (4.12%) DNS
5 20 (3.58%) Firewall
6 15 (2.69%) Internet
6 15 (2.69%) Kerberos
7 12 (2.15%) FTP
8 11 (1.97%) VLAN
9 9 (1.61%) SSH
10 8 (1.43%) VPN
11 5 (0.90%) SMTP
12 3 (0.54%) X.509
13 1 (0.18%) DOCSIS
13 1 (0.18%) LAN
13 1 (0.18%) Skype
13 1 (0.18%) WAN
Database & Business Intelligence
1 305 (54.66%) NoSQL
2 244 (43.73%) MongoDB
3 152 (27.24%) Big Data
4 119 (21.33%) Hadoop
5 72 (12.90%) Redis
6 69 (12.37%) HBase
7 68 (12.19%) MySQL
8 66 (11.83%) Relational Database
9 49 (8.78%) Apache Hive
9 49 (8.78%) PostgreSQL
10 47 (8.42%) SQL Server
11 34 (6.09%) Couchbase
12 31 (5.56%) RDBMS
13 25 (4.48%) Amazon DynamoDB
13 25 (4.48%) Riak
14 19 (3.41%) Impala
15 18 (3.23%) Data Warehouse
16 16 (2.87%) CouchDB
17 15 (2.69%) Sqoop
18 13 (2.33%) Amazon RDS
Development Applications
1 139 (24.91%) Jenkins
2 105 (18.82%) Git (software)
3 90 (16.13%) Maven
4 47 (8.42%) Gradle
5 34 (6.09%) JIRA
6 31 (5.56%) Bitbucket
7 22 (3.94%) GitLab
8 21 (3.76%) gulp
8 21 (3.76%) Pylint
9 20 (3.58%) Mockito
10 19 (3.41%) Visual Studio Team System
11 15 (2.69%) Cucumber
12 13 (2.33%) JUnit
13 12 (2.15%) Mocha
13 12 (2.15%) Subversion
14 11 (1.97%) Visual Studio
15 10 (1.79%) Artifactory
16 9 (1.61%) GoCD
16 9 (1.61%) JMeter
16 9 (1.61%) Octopus Deploy
General
1 102 (18.28%) Finance
2 71 (12.72%) Banking
3 23 (4.12%) Legal
4 18 (3.23%) Telecoms
5 12 (2.15%) Front Office
6 11 (1.97%) Retail
7 8 (1.43%) Games
7 8 (1.43%) Marketing
8 4 (0.72%) Back Office
9 3 (0.54%) Advertising
9 3 (0.54%) Investment Banking
9 3 (0.54%) Manufacturing
9 3 (0.54%) Multimedia
9 3 (0.54%) Retail Banking
10 2 (0.36%) Financial Institution
10 2 (0.36%) Law
10 2 (0.36%) Retail Finance
Job Titles
1 330 (59.14%) Developer
2 177 (31.72%) Java Developer
3 87 (15.59%) Senior Developer
4 65 (11.65%) Data Engineer
5 54 (9.68%) DevOps Engineer
6 51 (9.14%) Senior Java Developer
7 44 (7.89%) Big Data Engineer
7 44 (7.89%) Scala Developer
8 42 (7.53%) Lead Developer
9 39 (6.99%) Lead Java Developer
10 38 (6.81%) Architect
10 38 (6.81%) AWS Developer
11 33 (5.91%) Python Developer
12 32 (5.73%) Full Stack Developer
13 30 (5.38%) Big Data Developer
13 30 (5.38%) Java Team Leader
13 30 (5.38%) Team Leader
14 25 (4.48%) Senior Scala Developer
15 21 (3.76%) Apache Spark Developer
15 21 (3.76%) Cassandra Engineer
Libraries, Frameworks & Software Standards
1 222 (39.78%) Kafka
2 168 (30.11%) Spring
3 131 (23.48%) Spring Boot
4 127 (22.76%) Web Services
5 120 (21.51%) RESTful
6 111 (19.89%) REST
7 65 (11.65%) Hibernate
8 64 (11.47%) React
9 61 (10.93%) HTML
10 59 (10.57%) Node.js
11 57 (10.22%) CSS
12 53 (9.50%) AngularJS
13 52 (9.32%) HTML5
14 42 (7.53%) Play Framework
15 41 (7.35%) Elastic Stack
16 40 (7.17%) JMS
17 38 (6.81%) RabbitMQ
18 30 (5.38%) OAuth
18 30 (5.38%) Redux
18 30 (5.38%) Spring MVC
Miscellaneous
1 54 (9.68%) Greenfield Project
2 33 (5.91%) Analytical Skills
3 31 (5.56%) Fintech
4 28 (5.02%) Algorithms
5 20 (3.58%) Data Structures
6 13 (2.33%) Self-Motivation
7 12 (2.15%) Public Cloud
7 12 (2.15%) Replication
8 11 (1.97%) Data Centre
9 10 (1.79%) Mobile App
10 9 (1.61%) Clustering
11 8 (1.43%) Cloud Native
12 7 (1.25%) User Experience
13 6 (1.08%) Linux Command Line
13 6 (1.08%) Tandem
14 4 (0.72%) Internet of Things
14 4 (0.72%) Virtual Team
15 3 (0.54%) Cyber Defence
15 3 (0.54%) Foreign Exchange (FX)
15 3 (0.54%) Hybrid Cloud
Operating Systems
1 85 (15.23%) Linux
2 28 (5.02%) Unix
3 14 (2.51%) Windows
4 11 (1.97%) Red Hat Enterprise Linux
5 10 (1.79%) Apple iOS
6 9 (1.61%) Android
7 3 (0.54%) CentOS
8 2 (0.36%) Solaris
9 1 (0.18%) DC/OS
Processes & Methodologies
1 285 (51.08%) Agile Software Development
2 246 (44.09%) Microservices
3 212 (37.99%) TDD
4 162 (29.03%) DevOps
5 119 (21.33%) BDD
6 98 (17.56%) Test Automation
7 79 (14.16%) Machine Learning
8 77 (13.80%) Open Source
9 75 (13.44%) Scrum
10 63 (11.29%) Pair Programming
11 60 (10.75%) Continuous Integration
12 57 (10.22%) Problem-Solving
13 51 (9.14%) Software Engineering
14 50 (8.96%) Continuous Delivery
15 41 (7.35%) Business Intelligence
15 41 (7.35%) Data Science
15 41 (7.35%) Kanban
16 40 (7.17%) Analytics
17 39 (6.99%) Configuration Management
18 37 (6.63%) MapReduce
Programming Languages
1 377 (67.56%) Java
2 161 (28.85%) Java 8
3 157 (28.14%) Python
4 143 (25.63%) Scala
5 112 (20.07%) JavaScript
6 102 (18.28%) SQL
7 37 (6.63%) Bash Shell
8 30 (5.38%) Java 9
9 27 (4.84%) C#
10 24 (4.30%) Go
11 20 (3.58%) Ruby
12 19 (3.41%) TypeScript
13 16 (2.87%) C++
13 16 (2.87%) ES6
13 16 (2.87%) R
14 14 (2.51%) Perl
15 11 (1.97%) Groovy
16 9 (1.61%) C
17 7 (1.25%) AWK
17 7 (1.25%) MATLAB
Qualifications
1 39 (6.99%) Degree
2 9 (1.61%) Security Cleared
3 6 (1.08%) Computer Science Degree
4 5 (0.90%) Master's Degree
4 5 (0.90%) PhD
5 2 (0.36%) CEH
5 2 (0.36%) PMI Certification
5 2 (0.36%) SC Cleared
6 1 (0.18%) CCA
Quality Assurance & Compliance
1 12 (2.15%) QA
2 7 (1.25%) Data Quality
3 4 (0.72%) PSD2
4 1 (0.18%) ISO/IEC 27001
4 1 (0.18%) SLA
System Software
1 250 (44.80%) Docker
2 33 (5.91%) Apache Flume
3 32 (5.73%) Apache ZooKeeper
4 30 (5.38%) HDFS
5 20 (3.58%) VMware Infrastructure
5 20 (3.58%) Xen
6 15 (2.69%) Active Directory
7 11 (1.97%) NFS
8 6 (1.08%) Virtual Machines
9 3 (0.54%) KVM
10 1 (0.18%) Ceph
10 1 (0.18%) Oracle RAC
10 1 (0.18%) Squid
Systems Management
1 193 (34.59%) Kubernetes
2 76 (13.62%) Ansible
3 58 (10.39%) Terraform
4 29 (5.20%) Puppet
5 25 (4.48%) Docker Swarm
6 23 (4.12%) Hadoop YARN
7 21 (3.76%) Mesos
8 18 (3.23%) Opscode Chef
9 14 (2.51%) Prometheus
10 11 (1.97%) Oozie
11 10 (1.79%) Kibana
11 10 (1.79%) linkerd
12 9 (1.61%) Grafana
12 9 (1.61%) ITRS Geneos
12 9 (1.61%) Salt
13 6 (1.08%) Istio
14 5 (0.90%) Ambari
14 5 (0.90%) Nagios
15 4 (0.72%) Rundeck
16 3 (0.54%) logstash
Vendors
1 73 (13.08%) Oracle
2 46 (8.24%) Splunk
3 35 (6.27%) Google
4 29 (5.20%) Microsoft
5 21 (3.76%) VMware
6 19 (3.41%) Hortonworks
7 17 (3.05%) Cloudera
8 11 (1.97%) AppDynamics
8 11 (1.97%) Talend
9 10 (1.79%) Red Hat
10 8 (1.43%) Atlassian
10 8 (1.43%) MapR
10 8 (1.43%) New Relic
11 6 (1.08%) Dynatrace
11 6 (1.08%) hybris
11 6 (1.08%) SOASTA, Inc
11 6 (1.08%) Tableau
11 6 (1.08%) Xerox
12 5 (0.90%) SAP
13 4 (0.72%) Teradata