The first table below looks at the demand for HDFS skills in IT contracts advertised across the UK. Included is a guide to the average contractor rates offered in IT contracts that have cited HDFS over the 3 months to 25 July 2014 with a comparison to the same period in the previous 2 years. The second table is for comparison and provides aggregates for all of the System Software category.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

Location
3 months to
25 Jul 2014
Same period 2013 Same period 2012
Hadoop Distributed File System (HDFS)
Rank 569 564 581
Rank change year-on-year
-5 +17
Contract jobs citing HDFS 24 4 3
As % of all contract IT jobs located in the UK 0.044% 0.008% 0.005%
As % of the System Software category 0.46% 0.080% 0.063%
Number of daily rates quoted 13 4 1
Average daily rate
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£550 £563 £600
Average daily rate % change year-on-year
-2.22% -6.25%
UK excluding London average daily rate - - -
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - - -
System Software Category
UK
Contract IT job ads with a match in the
System Software category
5194 5006 4763
As % of all contract IT jobs located in the UK 9.50% 9.81% 8.23%
Number of daily rates quoted 2863 2535 2269
Average daily rate £325 £345 £335
Average daily rate % change year-on-year
-5.79% +2.98%
90% offered a daily rate of more than £170 £190 £200
10% offered a daily rate of more than £475 £475 £450
UK excluding London average daily rate £310 £325 £325
% change year-on-year
-4.61% -
Number of hourly rates quoted 614 621 648
Average hourly rate £16.00 £18.50 £17.50
Average hourly rate % change year-on-year
-13.51% +5.71%
90% offered a hourly rate of more than £10.50 £11.00 £11.00
10% offered a hourly rate of more than £27.50 £32.50 £35.00
UK excluding London average hourly rate £15.50 £17.50 £17.00
% change year-on-year
-11.42% +2.94%

HDFS
Jobs Demand Trend

This chart provides the 3-month moving total of IT contractor jobs citing HDFS within the UK as a proportion of the total demand within the System Software category.

HDFS Jobs Demand Trend in the UK

HDFS
Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing HDFS within the UK.

HDFS Daily Rate Trend in the UK

HDFS
Daily Rate Histogram

This chart provides a histogram of daily rates quoted in contract IT jobs citing HDFS within the UK over the 3 months to 25 July 2014.

HDFS Daily Rate Histogram in the UK

HDFS
Top 24 Contract Locations

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing HDFS within the UK over the 3 months to 25 July 2014. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Average
Daily Rate
Last 3 Months
Average Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
London +23 24 £550 -2.22%
England -8 24 £550 -2.22% 2
City of London +18 6 £400 -28.88%
Docklands, London - - - -
East Midlands - - - -
South East - - - - 1
West Midlands - - - - 1
Scotland - - - -
East of England - - - -
Birmingham - - - - 1
Edinburgh - - - -
Hemel Hempstead - - - -
Milton Keynes - - - - 1
Northampton - - - -
Peterborough - - - -
Sheffield - - - -
Buckinghamshire - - - - 1
Cambridgeshire - - - -
Hertfordshire - - - -
Leicestershire - - - -
Northamptonshire - - - -
Oxfordshire - - - -
South Yorkshire - - - -
Yorkshire - - - -

HDFS
Top 30 Related IT Skills

For the 6 months to 25 July 2014, IT contractor jobs within the UK citing HDFS also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited HDFS.

1 35 (94.59%) Hadoop
2 32 (86.49%) Big Data
3 27 (72.97%) Apache Hive
4 25 (67.57%) Java
5 22 (59.46%) Apache Pig
6 21 (56.76%) HBase
7 18 (48.65%) MapReduce
8 17 (45.95%) Impala
9 14 (37.84%) Apache Cassandra
9 14 (37.84%) Kafka
10 13 (35.14%) NoSQL
11 11 (29.73%) Oozie
12 10 (27.03%) Sqoop
12 10 (27.03%) Mahout
12 10 (27.03%) MongoDB
12 10 (27.03%) Agile Software Development
12 10 (27.03%) JIRA
13 9 (24.32%) SQL
13 9 (24.32%) JUnit
13 9 (24.32%) UNIX
13 9 (24.32%) Apache Flume
14 8 (21.62%) Linux
14 8 (21.62%) Netezza
14 8 (21.62%) Spring
15 7 (18.92%) TDD
15 7 (18.92%) Finance
15 7 (18.92%) ActiveMQ
15 7 (18.92%) Google
15 7 (18.92%) JDBC
15 7 (18.92%) Apache ZooKeeper

HDFS
Top Related IT Skills by Category

For the 6 months to 25 July 2014, IT contractor jobs within the UK citing HDFS also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited HDFS. Up to 20 skills are shown per category.

Application Platforms
1 22 (59.46%) Apache Pig
2 5 (13.51%) Apache
3 2 (5.41%) Elasticsearch
4 1 (2.70%) SAS
4 1 (2.70%) Confluence
Cloud Services
1 2 (5.41%) Amazon AWS
1 2 (5.41%) Amazon EMR
2 1 (2.70%) Cloud Computing
Database & Business Intelligence
1 35 (94.59%) Hadoop
2 32 (86.49%) Big Data
3 27 (72.97%) Apache Hive
4 21 (56.76%) HBase
5 17 (45.95%) Impala
6 14 (37.84%) Apache Cassandra
7 13 (35.14%) NoSQL
8 10 (27.03%) MongoDB
8 10 (27.03%) Sqoop
8 10 (27.03%) Mahout
9 6 (16.22%) Couchbase
9 6 (16.22%) Data Warehouse
10 5 (13.51%) Riak
11 4 (10.81%) Redis
11 4 (10.81%) Oracle Exadata
11 4 (10.81%) MySQL
11 4 (10.81%) MarkLogic
11 4 (10.81%) HCatalog
12 2 (5.41%) Amazon DynamoDB
12 2 (5.41%) CouchDB
Development Applications
1 10 (27.03%) JIRA
2 9 (24.32%) JUnit
3 7 (18.92%) Mockito
4 5 (13.51%) TeamCity
4 5 (13.51%) Hudson
4 5 (13.51%) Maven
5 3 (8.11%) Git (software)
5 3 (8.11%) Cucumber
6 2 (5.41%) Jenkins
7 1 (2.70%) JMeter
7 1 (2.70%) Talend Open Studio
General
1 7 (18.92%) Finance
2 4 (10.81%) Banking
3 2 (5.41%) Financial Institution
4 1 (2.70%) Investment Banking
4 1 (2.70%) Games
Job Titles
1 16 (43.24%) Developer
2 9 (24.32%) Hadoop Developer
3 6 (16.22%) Senior Developer
3 6 (16.22%) Java Developer
4 4 (10.81%) Architect
4 4 (10.81%) Big Data Developer
4 4 (10.81%) Test Leader
5 3 (8.11%) Data Consultant
5 3 (8.11%) Big Data Consultant
5 3 (8.11%) Consultant
5 3 (8.11%) Enterprise Architect
6 2 (5.41%) Senior Java Developer
6 2 (5.41%) Trainer
7 1 (2.70%) Data Architect
7 1 (2.70%) Lead Developer
7 1 (2.70%) Big Data Architect
7 1 (2.70%) Cloud Developer
Libraries, Frameworks & Software Standards
1 18 (48.65%) MapReduce
2 14 (37.84%) Kafka
3 8 (21.62%) Spring
4 7 (18.92%) JDBC
4 7 (18.92%) ActiveMQ
5 5 (13.51%) J2SE
6 4 (10.81%) Hibernate
6 4 (10.81%) SOAP
7 3 (8.11%) REST
8 2 (5.41%) Apache Avro
8 2 (5.41%) Apache Camel
8 2 (5.41%) RHadoop
8 2 (5.41%) Web Services
8 2 (5.41%) XML
8 2 (5.41%) ODBC
8 2 (5.41%) HTML
8 2 (5.41%) JSON
8 2 (5.41%) Spring MVC
8 2 (5.41%) HTML5
8 2 (5.41%) RabbitMQ
Miscellaneous
1 4 (10.81%) Visualisation
2 2 (5.41%) Market Risk
2 2 (5.41%) Data Integration
2 2 (5.41%) Derivative
3 1 (2.70%) Informatics
3 1 (2.70%) Mathematics
3 1 (2.70%) Computer Science
3 1 (2.70%) Open Source
Operating Systems
1 9 (24.32%) UNIX
2 8 (21.62%) Linux
Processes & Methodologies
1 10 (27.03%) Agile Software Development
2 7 (18.92%) TDD
3 6 (16.22%) ETL
3 6 (16.22%) BDD
3 6 (16.22%) Analytics
4 4 (10.81%) Test Strategy
4 4 (10.81%) Scrum
4 4 (10.81%) Business Intelligence
4 4 (10.81%) Unit Testing
5 3 (8.11%) Big Data Analytics
6 2 (5.41%) Machine Learning
6 2 (5.41%) CQRS
6 2 (5.41%) User Stories
6 2 (5.41%) Automation Testing
6 2 (5.41%) Low Latency
6 2 (5.41%) Automated Testing
6 2 (5.41%) Risk Analysis
6 2 (5.41%) Test Scripting
6 2 (5.41%) Continuous Integration
6 2 (5.41%) Manual Testing
Programming Languages
1 25 (67.57%) Java
2 9 (24.32%) SQL
3 5 (13.51%) Python
3 5 (13.51%) Scala
3 5 (13.51%) Bash Shell
4 3 (8.11%) C#
5 2 (5.41%) C++
5 2 (5.41%) PL/SQL
6 1 (2.70%) Shell Script
6 1 (2.70%) Groovy
6 1 (2.70%) R
Qualifications
1 3 (8.11%) Degree
2 2 (5.41%) Microsoft Certification
2 2 (5.41%) MCT
3 1 (2.70%) ISEB
System Software
1 9 (24.32%) Apache Flume
2 7 (18.92%) Apache ZooKeeper
3 1 (2.70%) Oracle RAC
Systems Management
1 11 (29.73%) Oozie
2 4 (10.81%) Ambari
3 2 (5.41%) Puppet
3 2 (5.41%) Opscode Chef
Vendors
1 8 (21.62%) Netezza
2 7 (18.92%) Google
3 5 (13.51%) Cloudera
3 5 (13.51%) Oracle
3 5 (13.51%) DoubleClick
4 4 (10.81%) Teradata
4 4 (10.81%) Greenplum
4 4 (10.81%) Vertica
4 4 (10.81%) MapR
4 4 (10.81%) Hortonworks
5 2 (5.41%) Microsoft
6 1 (2.70%) Informatica
6 1 (2.70%) Talend