The table below looks at the statistics 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 29 August 2014 with a comparison to the same period in the previous 2 years.

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
29 Aug 2014
Same period 2013 Same period 2012
Hadoop Distributed File System (HDFS)
Rank 572 567 590
Rank change year-on-year
-5 +23
Contract jobs citing HDFS 34 12 1
As % of all contract IT jobs located in the UK 0.060% 0.023% 0.002%
As % of the System Software category 0.63% 0.24% 0.021%
Number of daily rates quoted 25 12 1
Average daily rate
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£775 £450 £600
Average daily rate % change year-on-year
+72.22% -25.00%
UK excluding London average daily rate - - -
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - - -

The following table is for comparison with the above and provides statistics for the entire System Software category in contract jobs advertised across the UK.

System Software Category
UK
Contract IT job ads with a match in the
System Software category
5388 5085 4819
As % of all contract IT jobs located in the UK 9.53% 9.65% 8.33%
Number of daily rates quoted 3028 2629 2333
Average daily rate £325 £339 £338
Average daily rate % change year-on-year
-4.05% +0.37%
90% offered a daily rate of more than £175 £180 £200
10% offered a daily rate of more than £500 £475 £450
UK excluding London average daily rate £313 £325 £325
% change year-on-year
-3.84% -
Number of hourly rates quoted 630 580 588
Average hourly rate £16.50 £17.50 £16.50
Average hourly rate % change year-on-year
-5.71% +6.06%
90% offered a hourly rate of more than £10.50 £11.00 £11.00
10% offered a hourly rate of more than £31.50 £32.50 £32.50
UK excluding London average hourly rate £16.50 £17.50 £16.00
% change year-on-year
-5.71% +9.37%

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 29 August 2014.

HDFS Daily Rate Histogram in the UK

HDFS
Top 20 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 29 August 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 +39 34 £775 +72.22% 3
England +4 34 £775 +72.22% 5
City of London +20 9 £525 +10.52%
Docklands, London - - - -
East Midlands - - - -
South East - - - - 1
West Midlands - - - -
Scotland - - - -
East of England - - - - 1
Birmingham - - - -
Edinburgh - - - -
Hemel Hempstead - - - -
Milton Keynes - - - -
Northampton - - - -
Peterborough - - - -
Buckinghamshire - - - -
Cambridgeshire - - - - 1
Hertfordshire - - - -
Northamptonshire - - - -
Oxfordshire - - - -

HDFS
Top 30 Related IT Skills

For the 6 months to 29 August 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 44 (91.67%) Hadoop
2 43 (89.58%) Big Data
3 40 (83.33%) Apache Hive
4 31 (64.58%) MapReduce
5 30 (62.50%) HBase
6 27 (56.25%) Java
7 25 (52.08%) Oozie
8 24 (50.00%) Apache Pig
8 24 (50.00%) Apache Cassandra
9 23 (47.92%) NoSQL
10 22 (45.83%) MongoDB
10 22 (45.83%) Mahout
11 19 (39.58%) Apache Flume
12 18 (37.50%) Sqoop
12 18 (37.50%) Analytics
12 18 (37.50%) Netezza
13 17 (35.42%) Apache ZooKeeper
13 17 (35.42%) Impala
14 16 (33.33%) Couchbase
14 16 (33.33%) Data Warehouse
15 15 (31.25%) Visualisation
15 15 (31.25%) Riak
16 14 (29.17%) Hortonworks
16 14 (29.17%) MarkLogic
16 14 (29.17%) Kafka
16 14 (29.17%) MapR
16 14 (29.17%) Ambari
16 14 (29.17%) HCatalog
16 14 (29.17%) Cascading
16 14 (29.17%) Oracle Exadata

HDFS
Top Related IT Skills by Category

For the 6 months to 29 August 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 24 (50.00%) Apache Pig
2 7 (14.58%) Apache
3 3 (6.25%) Oracle Coherence
4 2 (4.17%) Elasticsearch
5 1 (2.08%) Confluence
5 1 (2.08%) SAS
Cloud Services
1 4 (8.33%) Amazon AWS
2 3 (6.25%) Cloud Computing
3 2 (4.17%) Microsoft Azure
3 2 (4.17%) Amazon EMR
Communications & Networking
1 3 (6.25%) LAN
1 3 (6.25%) WAN
2 2 (4.17%) AMQP
2 2 (4.17%) LDAP
Database & Business Intelligence
1 44 (91.67%) Hadoop
2 43 (89.58%) Big Data
3 40 (83.33%) Apache Hive
4 30 (62.50%) HBase
5 24 (50.00%) Apache Cassandra
6 23 (47.92%) NoSQL
7 22 (45.83%) MongoDB
7 22 (45.83%) Mahout
8 18 (37.50%) Sqoop
9 17 (35.42%) Impala
10 16 (33.33%) Couchbase
10 16 (33.33%) Data Warehouse
11 15 (31.25%) Riak
12 14 (29.17%) Oracle Exadata
12 14 (29.17%) MarkLogic
12 14 (29.17%) HCatalog
13 6 (12.50%) MySQL
13 6 (12.50%) SQL Server
13 6 (12.50%) DB2
14 4 (8.33%) Redis
Development Applications
1 9 (18.75%) JUnit
2 7 (14.58%) JIRA
2 7 (14.58%) Mockito
3 5 (10.42%) TeamCity
3 5 (10.42%) Maven
3 5 (10.42%) Hudson
4 3 (6.25%) Git (software)
5 2 (4.17%) Cucumber
5 2 (4.17%) Jenkins
6 1 (2.08%) Talend Open Studio
General
1 14 (29.17%) Banking
2 7 (14.58%) Finance
3 4 (8.33%) Investment Banking
4 2 (4.17%) Marketing
4 2 (4.17%) Financial Institution
5 1 (2.08%) Front Office
5 1 (2.08%) Games
Job Titles
1 16 (33.33%) Architect
1 16 (33.33%) Developer
2 10 (20.83%) Enterprise Architect
3 7 (14.58%) Hadoop Developer
4 6 (12.50%) Java Developer
5 4 (8.33%) Data Architect
5 4 (8.33%) Senior Developer
5 4 (8.33%) Trainer
5 4 (8.33%) Big Data Developer
5 4 (8.33%) Big Data Architect
6 3 (6.25%) Big Data Consultant
6 3 (6.25%) Data Consultant
6 3 (6.25%) Lead Architect
6 3 (6.25%) Consultant
7 2 (4.17%) Senior Java Developer
8 1 (2.08%) Cloud Developer
8 1 (2.08%) Data Scientist
8 1 (2.08%) Lead Developer
8 1 (2.08%) Technical Architect
8 1 (2.08%) Senior Big Data Developer
Libraries, Frameworks & Software Standards
1 14 (29.17%) Kafka
1 14 (29.17%) Cascading
2 8 (16.67%) Spring
3 7 (14.58%) JDBC
3 7 (14.58%) ActiveMQ
4 5 (10.42%) J2SE
5 4 (8.33%) SOAP
5 4 (8.33%) Web Services
5 4 (8.33%) XML
5 4 (8.33%) JSON
5 4 (8.33%) HTML
5 4 (8.33%) Hibernate
6 2 (4.17%) Cascalog
6 2 (4.17%) Apache Avro
6 2 (4.17%) Apache Camel
6 2 (4.17%) RHadoop
6 2 (4.17%) Spring MVC
6 2 (4.17%) RESTful
6 2 (4.17%) HTML5
6 2 (4.17%) RabbitMQ
Miscellaneous
1 15 (31.25%) Visualisation
2 2 (4.17%) Derivative
2 2 (4.17%) Computer Science
2 2 (4.17%) Social Network
2 2 (4.17%) Market Risk
2 2 (4.17%) Data Integration
3 1 (2.08%) Statistics
3 1 (2.08%) Informatics
3 1 (2.08%) Mathematics
3 1 (2.08%) Open Source
Operating Systems
1 12 (25.00%) Linux
2 9 (18.75%) UNIX
3 2 (4.17%) Windows
3 2 (4.17%) Windows Server 2003
Processes & Methodologies
1 31 (64.58%) MapReduce
2 18 (37.50%) Analytics
3 11 (22.92%) Business Intelligence
4 6 (12.50%) Unit Testing
4 6 (12.50%) ETL
5 5 (10.42%) Big Data Analytics
5 5 (10.42%) Performance Tuning
6 4 (8.33%) BDD
6 4 (8.33%) Scrum
6 4 (8.33%) Agile Software Development
6 4 (8.33%) TDD
6 4 (8.33%) RAD
7 3 (6.25%) Benchmarking
7 3 (6.25%) Machine Learning
8 2 (4.17%) CQRS
8 2 (4.17%) Complex Event Processing
8 2 (4.17%) TOGAF
8 2 (4.17%) Network Design
8 2 (4.17%) Risk Analysis
8 2 (4.17%) Low Latency
Programming Languages
1 27 (56.25%) Java
2 14 (29.17%) SQL
3 7 (14.58%) C#
4 6 (12.50%) Python
5 5 (10.42%) Scala
5 5 (10.42%) Bash Shell
6 3 (6.25%) Shell Script
7 2 (4.17%) C++
7 2 (4.17%) JavaScript
7 2 (4.17%) PL/SQL
8 1 (2.08%) Groovy
8 1 (2.08%) R
Qualifications
1 4 (8.33%) MCT
1 4 (8.33%) Microsoft Certification
2 3 (6.25%) Degree
System Software
1 19 (39.58%) Apache Flume
2 17 (35.42%) Apache ZooKeeper
3 4 (8.33%) Oracle RAC
Systems Management
1 25 (52.08%) Oozie
2 14 (29.17%) Ambari
3 2 (4.17%) Puppet
3 2 (4.17%) Opscode Chef
3 2 (4.17%) Chukwa
Vendors
1 18 (37.50%) Netezza
2 14 (29.17%) Hortonworks
2 14 (29.17%) MapR
2 14 (29.17%) Teradata
3 11 (22.92%) Oracle
4 9 (18.75%) Google
5 5 (10.42%) Cloudera
5 5 (10.42%) Greenplum
5 5 (10.42%) DoubleClick
6 4 (8.33%) Microsoft
6 4 (8.33%) Vertica
7 3 (6.25%) Intel
7 3 (6.25%) Sybase
7 3 (6.25%) Cisco
8 2 (4.17%) Business Objects
8 2 (4.17%) Rackspace
9 1 (2.08%) Talend
9 1 (2.08%) IBM
9 1 (2.08%) Informatica