The following table provides summary statistics for contract job vacancies 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 3 months to 28 June 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
UK
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 276 367 446
Rank change year-on-year +91 +79  
Contract jobs citing Apache Cassandra 405 308 200
As % of all contract IT jobs advertised in the UK 0.86% 0.57% 0.36%
As % of the Database & Business Intelligence category 3.84% 2.62% 1.54%
Number of daily rates quoted 293 225 145
Median daily rate £537 £518 £500
Median daily rate % change year-on-year +3.67% +3.50%  
90% offered a daily rate of more than £374 £373 £375
10% offered a daily rate of more than £663 £663 £675
UK excluding London median daily rate £475 £425 £525
% change year-on-year +11.76% -19.04%  
Number of hourly rates quoted 0 2 0
Median hourly rate - £55.00 -
UK excluding London median hourly rate - £55.00 -

Apache Cassandra is in the database and business intelligence skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
UK
Contract job vacancies with a requirement for database and business intelligence skills 10537 11747 13009
As % of all contract IT job vacancies advertised in the UK 22.37% 21.81% 23.59%
Number of daily rates quoted 15318 17490 19694
Median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25%  
90% offered a daily rate of more than £313 £290 £268
10% offered a daily rate of more than £613 £600 £575
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 234 333 336
Median hourly rate £31.25 £31.90 £27.64
Median hourly rate % change year-on-year -2.03% +15.41%  
90% offered a hourly rate of more than £12.50 £11.70 £15.23
10% offered a hourly rate of more than £51.83 £50.55 £52.17
UK excluding London median hourly rate £38.00 £31.95 £26.00
% change year-on-year +18.93% +22.88%  

Apache Cassandra
Job Vacancy Trend

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

Job vacancy trend for Apache Cassandra in the UK

Apache Cassandra
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Apache Cassandra.

Contractor daily rate trend for Apache Cassandra in the UK

Apache Cassandra
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Apache Cassandra over the 3 months to 28 June 2017.

Contractor daily rate histogram for Apache Cassandra in the UK

Apache Cassandra
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Apache Cassandra.

Contractor hourly rate trend for Apache Cassandra in the UK

Apache Cassandra
Top 10 Contract Locations

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 UK over the 3 months to 28 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +76 386 £538 +3.86% 108
London +31 235 £550 +4.76% 75
UK excluding London +99 167 £475 +11.76% 36
South East +47 68 £478 +12.35% 9
North of England +62 42 £475 +17.86% 11
Midlands +34 20 £475 +11.76% 3
Scotland +47 15 £350 -0.70% 2
East of England - 14 £550 - 5
South West -4 7 £413 -4.62% 5
Northern Ireland -47 2 - - 1

For the 6 months to 28 June 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 with a requirement for Apache Cassandra.

1 433 (61.16%) Java
2 365 (51.55%) Agile Software Development
3 336 (47.46%) NoSQL
4 284 (40.11%) MongoDB
5 245 (34.60%) Linux
6 242 (34.18%) Big Data
7 228 (32.20%) Python
7 228 (32.20%) TDD
8 221 (31.21%) Scala
9 220 (31.07%) Hadoop
10 213 (30.08%) Apache Spark
11 203 (28.67%) DevOps
12 193 (27.26%) Kafka
13 173 (24.44%) Amazon AWS
14 167 (23.59%) Microservices
15 160 (22.60%) Docker
16 159 (22.46%) MySQL
17 158 (22.32%) Jenkins
18 157 (22.18%) SQL
19 150 (21.19%) Spring
20 140 (19.77%) Git (software)
20 140 (19.77%) Open Source
21 134 (18.93%) Scrum
22 128 (18.08%) Oracle
23 127 (17.94%) REST
24 121 (17.09%) Software Engineering
25 120 (16.95%) Puppet
26 119 (16.81%) Finance
27 105 (14.83%) Elasticsearch
27 105 (14.83%) Analytics

Apache Cassandra
Co-occurring IT Skills 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
1 213 (30.08%) Apache Spark
2 105 (14.83%) Elasticsearch
3 81 (11.44%) Apache
4 51 (7.20%) Apache Pig
5 45 (6.36%) Confluence
6 35 (4.94%) Apache Solr
7 25 (3.53%) OpenStack
8 22 (3.11%) nginx
8 22 (3.11%) Tomcat
9 15 (2.12%) JBoss
10 12 (1.69%) Oracle SOA Suite
11 8 (1.13%) Oracle Coherence
12 7 (0.99%) GlassFish
13 6 (0.85%) SAS
13 6 (0.85%) WebSphere
14 5 (0.71%) DataSynapse
14 5 (0.71%) WildFly
15 4 (0.56%) CMS
15 4 (0.56%) WebLogic
16 3 (0.42%) Jetty
Applications
1 4 (0.56%) GNU Octave
2 3 (0.42%) Weka
3 2 (0.28%) SPSS
Business Applications
1 2 (0.28%) Siebel CRM
2 1 (0.14%) BASE24
2 1 (0.14%) SAP Oil and Gas
Cloud Services
1 173 (24.44%) Amazon AWS
2 45 (6.36%) Amazon EC2
3 38 (5.37%) Microsoft Azure
4 25 (3.53%) Twilio
5 22 (3.11%) Slack
6 21 (2.97%) Amazon S3
7 20 (2.82%) Amazon SQS
8 16 (2.26%) OpenShift
9 14 (1.98%) Amazon EMR
9 14 (1.98%) Google Cloud Platform
10 11 (1.55%) Cloud Computing
11 9 (1.27%) PaaS
11 9 (1.27%) SaaS
12 8 (1.13%) GitHub
13 6 (0.85%) Akamai
13 6 (0.85%) IaaS
13 6 (0.85%) Loggly
14 4 (0.56%) Sumo Logic
15 3 (0.42%) AWS CloudFormation
15 3 (0.42%) IBM Cloud
Communications & Networking
1 45 (6.36%) HTTP
2 28 (3.95%) DNS
3 27 (3.81%) Firewall
4 20 (2.82%) TCP/IP
5 14 (1.98%) LAN
5 14 (1.98%) WAN
6 13 (1.84%) SSL
7 12 (1.69%) HTTPS
8 8 (1.13%) LDAP
9 6 (0.85%) Internet
10 5 (0.71%) Kerberos
11 4 (0.56%) AMQP
11 4 (0.56%) Skype
11 4 (0.56%) tcpdump
11 4 (0.56%) VPN
11 4 (0.56%) Wireshark
12 3 (0.42%) Intranet
13 2 (0.28%) Network Security
13 2 (0.28%) SSH
14 1 (0.14%) SMPP
Database & Business Intelligence
1 336 (47.46%) NoSQL
2 284 (40.11%) MongoDB
3 242 (34.18%) Big Data
4 220 (31.07%) Hadoop
5 159 (22.46%) MySQL
6 96 (13.56%) PostgreSQL
7 94 (13.28%) HBase
8 87 (12.29%) Apache Hive
9 64 (9.04%) Relational Database
10 63 (8.90%) SQL Server
11 47 (6.64%) Data Warehouse
12 35 (4.94%) Sqoop
13 33 (4.66%) RDBMS
14 27 (3.81%) Amazon DynamoDB
15 26 (3.67%) Redis
16 23 (3.25%) Neo4j
17 22 (3.11%) Impala
18 18 (2.54%) CouchDB
19 16 (2.26%) DB2
20 15 (2.12%) Couchbase
Development Applications
1 158 (22.32%) Jenkins
2 140 (19.77%) Git (software)
3 67 (9.46%) Maven
4 64 (9.04%) JIRA
5 46 (6.50%) JUnit
6 25 (3.53%) Jasmine
7 21 (2.97%) Bitbucket
7 21 (2.97%) Subversion
8 19 (2.68%) Cucumber
9 18 (2.54%) Hudson
10 15 (2.12%) GitLab
11 14 (1.98%) Atlassian Bamboo
11 14 (1.98%) Mockito
12 13 (1.84%) Gradle
12 13 (1.84%) TeamCity
13 12 (1.69%) Selenium
14 11 (1.55%) Ant
14 11 (1.55%) Vagrant
15 10 (1.41%) SonarQube
16 9 (1.27%) Eclipse
General
1 119 (16.81%) Finance
2 71 (10.03%) Banking
3 15 (2.12%) Games
4 12 (1.69%) Front Office
5 10 (1.41%) Investment Banking
6 7 (0.99%) Retail
7 6 (0.85%) Advertising
7 6 (0.85%) Telecoms
8 5 (0.71%) Law
9 2 (0.28%) Back Office
9 2 (0.28%) Publishing
9 2 (0.28%) Wholesale Banking
10 1 (0.14%) Billing
10 1 (0.14%) Electronics
10 1 (0.14%) Financial Institution
10 1 (0.14%) Hungarian Language
10 1 (0.14%) Legal
10 1 (0.14%) Marketing
10 1 (0.14%) Retail Banking
10 1 (0.14%) Spanish Language
Job Titles
1 346 (48.87%) Developer
2 207 (29.24%) Java Developer
3 102 (14.41%) Architect
4 67 (9.46%) Senior Developer
5 66 (9.32%) DevOps Engineer
6 62 (8.76%) Big Data Developer
7 58 (8.19%) Scala Developer
8 50 (7.06%) Data Engineer
9 41 (5.79%) AWS Developer
10 39 (5.51%) Big Data Engineer
10 39 (5.51%) Senior Java Developer
11 38 (5.37%) AWS DevOps
12 36 (5.08%) Cassandra Developer
13 34 (4.80%) AWS Engineer
14 31 (4.38%) Data Architect
14 31 (4.38%) DBA
15 28 (3.95%) Agile Developer
15 28 (3.95%) Hadoop Developer
15 28 (3.95%) Java Engineer
15 28 (3.95%) Technical Architect
Libraries, Frameworks & Software Standards
1 193 (27.26%) Kafka
2 150 (21.19%) Spring
3 127 (17.94%) REST
4 103 (14.55%) Web Services
5 84 (11.86%) HTML
6 77 (10.88%) JSON
7 71 (10.03%) Node.js
8 70 (9.89%) CSS
9 63 (8.90%) RESTful
10 62 (8.76%) HTML5
11 60 (8.47%) Spring Boot
12 54 (7.63%) Akka
12 54 (7.63%) Django
13 53 (7.49%) Play Framework
14 51 (7.20%) Ajax
15 48 (6.78%) Elastic Stack
16 46 (6.50%) CSS3
17 40 (5.65%) Hibernate
18 35 (4.94%) AngularJS
19 29 (4.10%) Spark Streaming
Miscellaneous
1 64 (9.04%) Greenfield Project
2 37 (5.23%) Algorithms
3 34 (4.80%) Client/Server
4 31 (4.38%) User Experience
5 27 (3.81%) Analytical Skills
5 27 (3.81%) Computer Science
6 18 (2.54%) Replication
6 18 (2.54%) Video on Demand
7 17 (2.40%) Clustering
8 16 (2.26%) Fintech
9 15 (2.12%) Enterprise Software
10 13 (1.84%) Linux Command Line
11 12 (1.69%) Data Structures
11 12 (1.69%) Fixed Income
11 12 (1.69%) Grid Computing
11 12 (1.69%) Management Information System
11 12 (1.69%) Mobile App
12 10 (1.41%) Derivative
13 9 (1.27%) Foreign Exchange (FX)
14 8 (1.13%) DataPower
Operating Systems
1 245 (34.60%) Linux
2 96 (13.56%) Unix
3 40 (5.65%) Red Hat Enterprise Linux
4 39 (5.51%) CentOS
5 34 (4.80%) Windows
6 20 (2.82%) Android
7 16 (2.26%) Apple iOS
8 12 (1.69%) Ubuntu
9 9 (1.27%) Mac OS X
9 9 (1.27%) Windows Server
10 2 (0.28%) CoreOS
11 1 (0.14%) Debian
11 1 (0.14%) Mesosphere
11 1 (0.14%) Solaris
11 1 (0.14%) Windows Server 2012
Processes & Methodologies
1 365 (51.55%) Agile Software Development
2 228 (32.20%) TDD
3 203 (28.67%) DevOps
4 167 (23.59%) Microservices
5 140 (19.77%) Open Source
6 134 (18.93%) Scrum
7 121 (17.09%) Software Engineering
8 105 (14.83%) Analytics
9 100 (14.12%) BDD
10 97 (13.70%) Continuous Integration
11 78 (11.02%) Kanban
12 70 (9.89%) Configuration Management
12 70 (9.89%) Mentoring
13 65 (9.18%) OO
14 61 (8.62%) Machine Learning
15 55 (7.77%) Continuous Delivery
16 49 (6.92%) MapReduce
17 46 (6.50%) Test Automation
18 41 (5.79%) Data Modelling
19 35 (4.94%) Data Analytics
Programming Languages
1 433 (61.16%) Java
2 228 (32.20%) Python
3 221 (31.21%) Scala
4 157 (22.18%) SQL
5 98 (13.84%) JavaScript
6 63 (8.90%) Ruby
7 61 (8.62%) Bash Shell
8 48 (6.78%) Perl
9 38 (5.37%) R
10 36 (5.08%) C#
11 32 (4.52%) Shell Script
12 25 (3.53%) PHP
13 18 (2.54%) C++
14 17 (2.40%) Go
15 15 (2.12%) CQL
15 15 (2.12%) Groovy
16 11 (1.55%) PL/SQL
17 8 (1.13%) Clojure
18 7 (0.99%) Kotlin
18 7 (0.99%) SPARQL
Qualifications
1 52 (7.34%) Degree
2 17 (2.40%) Master's Degree
3 13 (1.84%) Computer Science Degree
4 8 (1.13%) Numerate Degree
5 6 (0.85%) PhD
6 5 (0.71%) CISM
6 5 (0.71%) CISSP
6 5 (0.71%) MySQL Certification
7 4 (0.56%) Cisco Certification
8 3 (0.42%) CCNA
8 3 (0.42%) CCSA
8 3 (0.42%) JNCIA
8 3 (0.42%) Security Cleared
9 2 (0.28%) BPSS Clearance
10 1 (0.14%) AWS Certification
10 1 (0.14%) Chartered Engineer
10 1 (0.14%) CISA
10 1 (0.14%) GSEC
10 1 (0.14%) ITIL Certification
10 1 (0.14%) SC Cleared
Quality Assurance & Compliance
1 25 (3.53%) QA
2 6 (0.85%) Data Quality
3 3 (0.42%) MiFID
3 3 (0.42%) SLA
4 2 (0.28%) GCP
5 1 (0.14%) COBIT
5 1 (0.14%) ISO/IEC 27001
5 1 (0.14%) Sarbanes-Oxley
5 1 (0.14%) WCAG
System Software
1 160 (22.60%) Docker
2 49 (6.92%) HDFS
3 32 (4.52%) Apache Flume
4 23 (3.25%) Xen
5 19 (2.68%) VMware Infrastructure
6 18 (2.54%) Apache ZooKeeper
7 17 (2.40%) KVM
8 14 (1.98%) LXC
9 7 (0.99%) Platform Symphony
10 4 (0.56%) vSphere
11 3 (0.42%) Oracle RAC
12 2 (0.28%) zsh
13 1 (0.14%) Firmware
13 1 (0.14%) Hyper-V
13 1 (0.14%) Postfix
13 1 (0.14%) Virtual Machines
13 1 (0.14%) VirtualBox
Systems Management
1 120 (16.95%) Puppet
2 101 (14.27%) Opscode Chef
3 93 (13.14%) Ansible
4 58 (8.19%) Kubernetes
5 37 (5.23%) Hadoop YARN
6 31 (4.38%) logstash
7 29 (4.10%) Grafana
8 27 (3.81%) Terraform
9 23 (3.25%) Oozie
10 22 (3.11%) Nagios
11 21 (2.97%) Kibana
12 15 (2.12%) ZABBIX
13 13 (1.84%) Mesos
14 12 (1.69%) Graphite
15 9 (1.27%) Marathon
15 9 (1.27%) Rancher
16 8 (1.13%) Prometheus
16 8 (1.13%) Salt
17 7 (0.99%) FreeIPA
17 7 (0.99%) HP SiteScope
Vendors
1 128 (18.08%) Oracle
2 55 (7.77%) Red Hat
3 42 (5.93%) Splunk
4 27 (3.81%) Cloudera
4 27 (3.81%) Microsoft
5 24 (3.39%) VMware
6 20 (2.82%) SaltStack
7 18 (2.54%) IBM
8 17 (2.40%) Sybase
9 14 (1.98%) Google
10 12 (1.69%) Hortonworks
11 11 (1.55%) Dynatrace
12 10 (1.41%) AppDynamics
12 10 (1.41%) Pega
13 9 (1.27%) Informatica
13 9 (1.27%) Teradata
14 8 (1.13%) SAP
14 8 (1.13%) WSO2
15 7 (0.99%) HP
15 7 (0.99%) Percona
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