Apache Cassandra Contracts in England

The following table provides summary statistics for contract job vacancies advertised in England 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 / England
Location	3 months to 28 Jun 2017	Same period 2016	Same period 2015
Rank	262	338	433
Rank change year-on-year	+76	+95
Contract jobs citing Apache Cassandra	386	305	193
As % of all contract IT jobs advertised in England	0.89%	0.62%	0.38%
As % of the Database & Business Intelligence category	3.99%	2.83%	1.62%
Number of daily rates quoted	281	224	141
Median daily rate	£538	£518	£500
Median daily rate % change year-on-year	+3.86%	+3.50%
90% offered a daily rate of more than	£406	£373	£375
10% offered a daily rate of more than	£663	£667	£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 advertised in England with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills England
Contract job vacancies with a requirement for database and business intelligence skills	9673	10772	11887
As % of all contract IT job vacancies advertised in England	22.38%	21.78%	23.67%
Number of daily rates quoted	14236	16294	18356
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	£300	£269
10% offered a daily rate of more than	£625	£600	£575
UK excluding London median daily rate	£400	£375	£350
% change year-on-year	+6.66%	+7.14%
Number of hourly rates quoted	214	287	320
Median hourly rate	£31.00	£31.00	£26.00
Median hourly rate % change year-on-year	-	+19.23%
90% offered a hourly rate of more than	£12.00	£12.25	£15.06
10% offered a hourly rate of more than	£50.00	£51.00	£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 in England

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

Job vacancy trend for Apache Cassandra in England

Apache Cassandra
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for Apache Cassandra in England

Apache Cassandra
Contractor Daily Rate Histogram in England

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

Contractor daily rate histogram for Apache Cassandra in England

Apache Cassandra
Contractor Hourly Rate Trend in England

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

Contractor hourly rate trend for Apache Cassandra in England

Apache Cassandra
Contract Job Locations in England

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 England region 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
London	+31	235	£550	+4.76%	75
South East	+47	68	£478	+12.35%	9
North of England	+62	42	£475	+17.86%	11
Midlands	+34	20	£475	+11.76%	3
Yorkshire	+16	17	£430	+7.50%	2
North West	+22	16	£543	+40.90%	9
East of England	-	14	£550	-	5
West Midlands	+36	13	£503	-3.13%	3
North East	+81	10	£475	-
East Midlands	-4	7	£365	-14.11%
South West	-4	7	£413	-4.62%	5
Apache Cassandra UK

Apache Cassandra
Top 30 Co-occurring IT Skills in England

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 across the England region with a requirement for Apache Cassandra.

1	413 (60.56%)	Java
2	357 (52.35%)	Agile Software Development
3	320 (46.92%)	NoSQL
4	276 (40.47%)	MongoDB
5	244 (35.78%)	Linux
6	237 (34.75%)	Big Data
7	226 (33.14%)	Python
8	216 (31.67%)	Scala
9	215 (31.52%)	TDD
10	212 (31.09%)	Hadoop
11	207 (30.35%)	Apache Spark
12	199 (29.18%)	DevOps
13	185 (27.13%)	Kafka
14	169 (24.78%)	Amazon AWS
15	161 (23.61%)	Microservices

16	160 (23.46%)	Docker
17	159 (23.31%)	MySQL
18	155 (22.73%)	Jenkins
19	150 (21.99%)	SQL
20	138 (20.23%)	Spring
21	135 (19.79%)	Git (software)
22	132 (19.35%)	Open Source
23	131 (19.21%)	Scrum
24	128 (18.77%)	Oracle
25	123 (18.04%)	REST
26	120 (17.60%)	Puppet
27	117 (17.16%)	Software Engineering
28	115 (16.86%)	Finance
29	101 (14.81%)	Elasticsearch
29	101 (14.81%)	Opscode Chef

Apache Cassandra
Co-occurring IT Skills in England 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
Applications
Business Applications
Cloud Services
Communications & Networking
Database & Business Intelligence
Development Applications
General
Job Titles
Libraries, Frameworks & Software Standards
Miscellaneous
Operating Systems
Processes & Methodologies
Programming Languages
Qualifications
Quality Assurance & Compliance
System Software
Systems Management
Vendors

Application Platforms
1	207 (30.35%)	Apache Spark
2	101 (14.81%)	Elasticsearch
3	80 (11.73%)	Apache
4	51 (7.48%)	Apache Pig
5	41 (6.01%)	Confluence
6	31 (4.55%)	Apache Solr
7	24 (3.52%)	OpenStack
8	22 (3.23%)	nginx
9	20 (2.93%)	Tomcat
10	15 (2.20%)	JBoss
11	12 (1.76%)	Oracle SOA Suite
12	8 (1.17%)	Oracle Coherence
13	7 (1.03%)	GlassFish
14	6 (0.88%)	SAS
15	5 (0.73%)	DataSynapse
15	5 (0.73%)	WildFly
16	4 (0.59%)	CMS
16	4 (0.59%)	WebLogic
16	4 (0.59%)	WebSphere
17	3 (0.44%)	Drupal

Applications
1	4 (0.59%)	GNU Octave
2	3 (0.44%)	Weka
3	2 (0.29%)	SPSS

Business Applications
1	2 (0.29%)	Siebel CRM
2	1 (0.15%)	BASE24
2	1 (0.15%)	SAP Oil and Gas

Cloud Services
1	169 (24.78%)	Amazon AWS
2	45 (6.60%)	Amazon EC2
3	36 (5.28%)	Microsoft Azure
4	25 (3.67%)	Twilio
5	22 (3.23%)	Slack
6	20 (2.93%)	Amazon SQS
7	19 (2.79%)	Amazon S3
8	16 (2.35%)	OpenShift
9	14 (2.05%)	Amazon EMR
10	13 (1.91%)	Google Cloud Platform
11	10 (1.47%)	Cloud Computing
12	9 (1.32%)	PaaS
12	9 (1.32%)	SaaS
13	8 (1.17%)	GitHub
14	6 (0.88%)	Akamai
14	6 (0.88%)	IaaS
14	6 (0.88%)	Loggly
15	4 (0.59%)	Sumo Logic
16	3 (0.44%)	AWS CloudFormation
16	3 (0.44%)	SoftLayer

Communications & Networking
1	45 (6.60%)	HTTP
2	28 (4.11%)	DNS
3	26 (3.81%)	Firewall
4	20 (2.93%)	TCP/IP
5	14 (2.05%)	LAN
5	14 (2.05%)	WAN
6	13 (1.91%)	SSL
7	12 (1.76%)	HTTPS
8	8 (1.17%)	LDAP
9	6 (0.88%)	Internet
10	5 (0.73%)	Kerberos
11	4 (0.59%)	AMQP
11	4 (0.59%)	Skype
11	4 (0.59%)	tcpdump
11	4 (0.59%)	VPN
11	4 (0.59%)	Wireshark
12	3 (0.44%)	Intranet
13	2 (0.29%)	Network Security
13	2 (0.29%)	SSH
14	1 (0.15%)	NAS

Database & Business Intelligence
1	320 (46.92%)	NoSQL
2	276 (40.47%)	MongoDB
3	237 (34.75%)	Big Data
4	212 (31.09%)	Hadoop
5	159 (23.31%)	MySQL
6	96 (14.08%)	PostgreSQL
7	90 (13.20%)	HBase
8	84 (12.32%)	Apache Hive
9	63 (9.24%)	SQL Server
10	59 (8.65%)	Relational Database
11	43 (6.30%)	Data Warehouse
12	35 (5.13%)	Sqoop
13	33 (4.84%)	RDBMS
14	27 (3.96%)	Amazon DynamoDB
15	26 (3.81%)	Redis
16	23 (3.37%)	Neo4j
17	20 (2.93%)	Impala
18	18 (2.64%)	CouchDB
19	15 (2.20%)	Couchbase
19	15 (2.20%)	DB2

Development Applications
1	155 (22.73%)	Jenkins
2	135 (19.79%)	Git (software)
3	62 (9.09%)	Maven
4	60 (8.80%)	JIRA
5	42 (6.16%)	JUnit
6	25 (3.67%)	Jasmine
7	19 (2.79%)	Cucumber
8	18 (2.64%)	Hudson
9	17 (2.49%)	Subversion
10	16 (2.35%)	Bitbucket
11	15 (2.20%)	GitLab
12	14 (2.05%)	Atlassian Bamboo
12	14 (2.05%)	Mockito
13	13 (1.91%)	Gradle
13	13 (1.91%)	TeamCity
14	12 (1.76%)	Selenium
15	11 (1.61%)	Vagrant
16	10 (1.47%)	SonarQube
17	9 (1.32%)	Eclipse
17	9 (1.32%)	JMeter

General
1	115 (16.86%)	Finance
2	66 (9.68%)	Banking
3	15 (2.20%)	Games
4	12 (1.76%)	Front Office
5	10 (1.47%)	Investment Banking
6	6 (0.88%)	Advertising
6	6 (0.88%)	Telecoms
7	5 (0.73%)	Law
7	5 (0.73%)	Retail
8	2 (0.29%)	Back Office
8	2 (0.29%)	Publishing
8	2 (0.29%)	Wholesale Banking
9	1 (0.15%)	Billing
9	1 (0.15%)	Electronics
9	1 (0.15%)	Financial Institution
9	1 (0.15%)	Hungarian Language
9	1 (0.15%)	Legal
9	1 (0.15%)	Manufacturing
9	1 (0.15%)	Marketing
9	1 (0.15%)	Spanish Language

Job Titles
1	330 (48.39%)	Developer
2	195 (28.59%)	Java Developer
3	98 (14.37%)	Architect
4	67 (9.82%)	Senior Developer
5	66 (9.68%)	DevOps Engineer
6	59 (8.65%)	Big Data Developer
7	57 (8.36%)	Scala Developer
8	50 (7.33%)	Data Engineer
9	41 (6.01%)	AWS Developer
10	39 (5.72%)	Big Data Engineer
10	39 (5.72%)	Senior Java Developer
11	38 (5.57%)	AWS DevOps
12	34 (4.99%)	AWS Engineer
13	31 (4.55%)	DBA
14	30 (4.40%)	Cassandra Developer
15	28 (4.11%)	Agile Developer
15	28 (4.11%)	Hadoop Developer
15	28 (4.11%)	Technical Architect
16	27 (3.96%)	Data Architect
17	25 (3.67%)	Java Engineer

Libraries, Frameworks & Software Standards
1	185 (27.13%)	Kafka
2	138 (20.23%)	Spring
3	123 (18.04%)	REST
4	95 (13.93%)	Web Services
5	83 (12.17%)	HTML
6	73 (10.70%)	JSON
7	71 (10.41%)	Node.js
8	69 (10.12%)	CSS
9	62 (9.09%)	HTML5
10	56 (8.21%)	RESTful
11	54 (7.92%)	Django
11	54 (7.92%)	Spring Boot
12	53 (7.77%)	Akka
13	52 (7.62%)	Play Framework
14	51 (7.48%)	Ajax
15	48 (7.04%)	Elastic Stack
16	46 (6.74%)	CSS3
17	35 (5.13%)	AngularJS
17	35 (5.13%)	Hibernate
18	29 (4.25%)	Spark Streaming

Miscellaneous
1	61 (8.94%)	Greenfield Project
2	37 (5.43%)	Algorithms
3	34 (4.99%)	Client/Server
4	31 (4.55%)	User Experience
5	27 (3.96%)	Analytical Skills
6	23 (3.37%)	Computer Science
7	18 (2.64%)	Replication
7	18 (2.64%)	Video on Demand
8	17 (2.49%)	Clustering
9	16 (2.35%)	Fintech
10	14 (2.05%)	Enterprise Software
11	12 (1.76%)	Data Structures
11	12 (1.76%)	Fixed Income
11	12 (1.76%)	Grid Computing
11	12 (1.76%)	Management Information System
11	12 (1.76%)	Mobile App
12	10 (1.47%)	Derivative
13	9 (1.32%)	Foreign Exchange (FX)
13	9 (1.32%)	Linux Command Line
14	8 (1.17%)	DataPower

Operating Systems
1	244 (35.78%)	Linux
2	91 (13.34%)	Unix
3	40 (5.87%)	Red Hat Enterprise Linux
4	39 (5.72%)	CentOS
5	33 (4.84%)	Windows
6	20 (2.93%)	Android
7	16 (2.35%)	Apple iOS
8	12 (1.76%)	Ubuntu
9	9 (1.32%)	Mac OS X
9	9 (1.32%)	Windows Server
10	2 (0.29%)	CoreOS
11	1 (0.15%)	Debian
11	1 (0.15%)	Mesosphere
11	1 (0.15%)	Solaris
11	1 (0.15%)	Windows Server 2012

Processes & Methodologies
1	357 (52.35%)	Agile Software Development
2	215 (31.52%)	TDD
3	199 (29.18%)	DevOps
4	161 (23.61%)	Microservices
5	132 (19.35%)	Open Source
6	131 (19.21%)	Scrum
7	117 (17.16%)	Software Engineering
8	99 (14.52%)	Analytics
9	97 (14.22%)	BDD
9	97 (14.22%)	Continuous Integration
10	75 (11.00%)	Kanban
11	70 (10.26%)	Configuration Management
12	69 (10.12%)	Mentoring
13	64 (9.38%)	OO
14	61 (8.94%)	Machine Learning
15	55 (8.06%)	Continuous Delivery
16	49 (7.18%)	MapReduce
17	46 (6.74%)	Test Automation
18	39 (5.72%)	Data Modelling
19	31 (4.55%)	Data Analytics

Programming Languages
1	413 (60.56%)	Java
2	226 (33.14%)	Python
3	216 (31.67%)	Scala
4	150 (21.99%)	SQL
5	97 (14.22%)	JavaScript
6	63 (9.24%)	Ruby
7	61 (8.94%)	Bash Shell
8	48 (7.04%)	Perl
9	36 (5.28%)	C#
10	34 (4.99%)	R
11	32 (4.69%)	Shell Script
12	25 (3.67%)	PHP
13	18 (2.64%)	C++
14	17 (2.49%)	Go
15	15 (2.20%)	CQL
15	15 (2.20%)	Groovy
16	11 (1.61%)	PL/SQL
17	8 (1.17%)	Clojure
18	7 (1.03%)	Kotlin
18	7 (1.03%)	SPARQL

Qualifications
1	48 (7.04%)	Degree
2	17 (2.49%)	Master's Degree
3	9 (1.32%)	Computer Science Degree
4	8 (1.17%)	Numerate Degree
5	6 (0.88%)	PhD
6	5 (0.73%)	CISM
6	5 (0.73%)	CISSP
6	5 (0.73%)	MySQL Certification
7	4 (0.59%)	Cisco Certification
8	3 (0.44%)	CCNA
8	3 (0.44%)	CCSA
8	3 (0.44%)	JNCIA
8	3 (0.44%)	Security Cleared
9	2 (0.29%)	BPSS Clearance
10	1 (0.15%)	AWS Certification
10	1 (0.15%)	CCDP
10	1 (0.15%)	Chartered Engineer
10	1 (0.15%)	GSEC
10	1 (0.15%)	ITIL Certification
10	1 (0.15%)	SC Cleared

Quality Assurance & Compliance
1	25 (3.67%)	QA
2	6 (0.88%)	Data Quality
3	3 (0.44%)	MiFID
3	3 (0.44%)	SLA
4	2 (0.29%)	GCP
5	1 (0.15%)	COBIT
5	1 (0.15%)	ISO/IEC 27001
5	1 (0.15%)	Sarbanes-Oxley
5	1 (0.15%)	WCAG

System Software
1	160 (23.46%)	Docker
2	46 (6.74%)	HDFS
3	32 (4.69%)	Apache Flume
4	23 (3.37%)	Xen
5	19 (2.79%)	VMware Infrastructure
6	18 (2.64%)	Apache ZooKeeper
7	17 (2.49%)	KVM
8	14 (2.05%)	LXC
9	7 (1.03%)	Platform Symphony
10	4 (0.59%)	vSphere
11	3 (0.44%)	Oracle RAC
12	2 (0.29%)	zsh
13	1 (0.15%)	Firmware
13	1 (0.15%)	Hyper-V
13	1 (0.15%)	Postfix
13	1 (0.15%)	Virtual Machines
13	1 (0.15%)	VirtualBox

Systems Management
1	120 (17.60%)	Puppet
2	101 (14.81%)	Opscode Chef
3	93 (13.64%)	Ansible
4	58 (8.50%)	Kubernetes
5	35 (5.13%)	Hadoop YARN
6	31 (4.55%)	logstash
7	29 (4.25%)	Grafana
8	27 (3.96%)	Terraform
9	22 (3.23%)	Nagios
10	21 (3.08%)	Kibana
10	21 (3.08%)	Oozie
11	15 (2.20%)	ZABBIX
12	13 (1.91%)	Mesos
13	12 (1.76%)	Graphite
14	9 (1.32%)	Marathon
14	9 (1.32%)	Rancher
15	8 (1.17%)	Prometheus
15	8 (1.17%)	Salt
16	7 (1.03%)	Galera Cluster
16	7 (1.03%)	HP SiteScope

Vendors
1	128 (18.77%)	Oracle
2	55 (8.06%)	Red Hat
3	41 (6.01%)	Splunk
4	25 (3.67%)	Cloudera
4	25 (3.67%)	Microsoft
5	24 (3.52%)	VMware
6	20 (2.93%)	SaltStack
7	18 (2.64%)	IBM
8	17 (2.49%)	Sybase
9	12 (1.76%)	Google
9	12 (1.76%)	Hortonworks
10	11 (1.61%)	Dynatrace
11	10 (1.47%)	AppDynamics
11	10 (1.47%)	Pega
12	9 (1.32%)	Informatica
12	9 (1.32%)	Teradata
13	8 (1.17%)	SAP
13	8 (1.17%)	WSO2
14	7 (1.03%)	HP
14	7 (1.03%)	Percona