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 22 October 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
22 Oct 2014
Same period 2013 Same period 2012
Hadoop Distributed File System (HDFS)
Rank 584 546 584
Rank change year-on-year
-38 +38
Contract jobs citing HDFS 31 23 3
As % of all contract IT jobs located in the UK 0.054% 0.044% 0.005%
As % of the System Software category 0.56% 0.45% 0.062%
Number of daily rates quoted 22 22 3
Average daily rate
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£775 £413 £500
Average daily rate % change year-on-year
+87.87% -17.50%
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
5558 5091 4843
As % of all contract IT jobs located in the UK 9.68% 9.73% 8.73%
Number of daily rates quoted 3121 2619 2333
Average daily rate £350 £338 £350
Average daily rate % change year-on-year
+3.70% -3.57%
90% offered a daily rate of more than £180 £175 £185
10% offered a daily rate of more than £500 £482 £450
UK excluding London average daily rate £330 £310 £325
% change year-on-year
+6.45% -4.61%
Number of hourly rates quoted 680 633 634
Average hourly rate £16.50 £16.00 £16.50
Average hourly rate % change year-on-year
+3.12% -3.03%
90% offered a hourly rate of more than £10.50 £11.00 £11.00
10% offered a hourly rate of more than £33.15 £31.56 £31.00
UK excluding London average hourly rate £16.50 £15.50 £16.00
% change year-on-year
+6.45% -3.12%

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 22 October 2014.

HDFS Daily Rate Histogram in the UK

HDFS
Top 21 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 22 October 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
England -20 31 £775 +87.87% 9
London +26 29 £775 +87.87% 5
City of London +9 6 £925 +140.25% 1
South East -12 1 - - 3
Milton Keynes - 1 - -
Buckinghamshire - 1 - -
Cambridgeshire - - - - 1
Hampshire - - - -
Hertfordshire - - - -
Northamptonshire - - - -
Surrey - - - -
Northampton - - - -
Southampton - - - -
Staines - - - -
West Midlands - - - -
Hackney - - - -
East of England - - - - 1
East Midlands - - - -
Birmingham - - - -
Cambridge - - - -
Hemel Hempstead - - - -

HDFS
Top 30 Related IT Skills

For the 6 months to 22 October 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 50 (92.59%) Hadoop
2 49 (90.74%) Big Data
3 46 (85.19%) Apache Hive
4 36 (66.67%) HBase
5 34 (62.96%) MapReduce
6 29 (53.70%) Oozie
7 28 (51.85%) NoSQL
8 27 (50.00%) MongoDB
9 26 (48.15%) Mahout
9 26 (48.15%) Java
10 25 (46.30%) Analytics
11 24 (44.44%) Apache Flume
11 24 (44.44%) Data Warehouse
12 23 (42.59%) Visualisation
12 23 (42.59%) Apache Cassandra
12 23 (42.59%) Apache ZooKeeper
13 22 (40.74%) Apache Pig
13 22 (40.74%) Sqoop
14 21 (38.89%) Hortonworks
14 21 (38.89%) Business Intelligence
15 20 (37.04%) Teradata
15 20 (37.04%) Banking
15 20 (37.04%) Netezza
15 20 (37.04%) Couchbase
15 20 (37.04%) Oracle Exadata
15 20 (37.04%) HCatalog
15 20 (37.04%) Ambari
16 19 (35.19%) MapR
16 19 (35.19%) Riak
16 19 (35.19%) MarkLogic

HDFS
Top Related IT Skills by Category

For the 6 months to 22 October 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 (40.74%) Apache Pig
2 10 (18.52%) Apache Spark
3 7 (12.96%) Apache
4 4 (7.41%) Oracle Coherence
5 2 (3.70%) Elasticsearch
6 1 (1.85%) Confluence
6 1 (1.85%) SAS
Applications
1 1 (1.85%) MS Excel
Cloud Services
1 2 (3.70%) Cloud Computing
1 2 (3.70%) Microsoft Azure
1 2 (3.70%) Amazon AWS
Communications & Networking
1 4 (7.41%) LAN
1 4 (7.41%) WAN
2 2 (3.70%) LDAP
2 2 (3.70%) AMQP
Database & Business Intelligence
1 50 (92.59%) Hadoop
2 49 (90.74%) Big Data
3 46 (85.19%) Apache Hive
4 36 (66.67%) HBase
5 28 (51.85%) NoSQL
6 27 (50.00%) MongoDB
7 26 (48.15%) Mahout
8 24 (44.44%) Data Warehouse
9 23 (42.59%) Apache Cassandra
10 22 (40.74%) Sqoop
11 20 (37.04%) Couchbase
11 20 (37.04%) Oracle Exadata
11 20 (37.04%) HCatalog
12 19 (35.19%) Riak
12 19 (35.19%) MarkLogic
13 11 (20.37%) Impala
14 8 (14.81%) SQL Server
15 7 (12.96%) DB2
16 3 (5.56%) Relational Database
16 3 (5.56%) CouchDB
Development Applications
1 5 (9.26%) JUnit
2 3 (5.56%) JIRA
2 3 (5.56%) Mockito
2 3 (5.56%) Git (software)
3 2 (3.70%) Talend Open Studio
3 2 (3.70%) Cucumber
3 2 (3.70%) PyUnit
3 2 (3.70%) Jenkins
4 1 (1.85%) Hudson
4 1 (1.85%) Maven
4 1 (1.85%) TeamCity
General
1 20 (37.04%) Banking
2 9 (16.67%) Finance
3 5 (9.26%) Investment Banking
4 3 (5.56%) Marketing
5 2 (3.70%) Financial Institution
6 1 (1.85%) Games
6 1 (1.85%) Front Office
Job Titles
1 24 (44.44%) Architect
2 15 (27.78%) Developer
3 14 (25.93%) Enterprise Architect
4 7 (12.96%) Big Data Architect
4 7 (12.96%) Data Architect
5 6 (11.11%) Big Data Developer
6 5 (9.26%) Hadoop Developer
6 5 (9.26%) Java Developer
7 4 (7.41%) Consultant
7 4 (7.41%) Trainer
8 3 (5.56%) Big Data Consultant
8 3 (5.56%) Lead Architect
8 3 (5.56%) Data Consultant
8 3 (5.56%) Senior Developer
9 2 (3.70%) Technical Architect
10 1 (1.85%) Data Scientist
10 1 (1.85%) Senior Big Data Developer
10 1 (1.85%) Senior Java Developer
10 1 (1.85%) Senior Consultant
10 1 (1.85%) Lead Developer
Libraries, Frameworks & Software Standards
1 12 (22.22%) Kafka
2 9 (16.67%) Cascading
3 5 (9.26%) XML
3 5 (9.26%) JDBC
4 4 (7.41%) HTML
4 4 (7.41%) SOAP
4 4 (7.41%) Web Services
4 4 (7.41%) JSON
5 3 (5.56%) Spring
5 3 (5.56%) ActiveMQ
6 2 (3.70%) JSP
6 2 (3.70%) Servlets
6 2 (3.70%) XSD
6 2 (3.70%) ODBC
6 2 (3.70%) JMS
6 2 (3.70%) RESTful
6 2 (3.70%) HTML5
6 2 (3.70%) Spring MVC
6 2 (3.70%) Apache Camel
6 2 (3.70%) REST
Miscellaneous
1 23 (42.59%) Visualisation
2 4 (7.41%) Analytical Skills
2 4 (7.41%) Algorithms
3 2 (3.70%) Data Extraction
3 2 (3.70%) Data Integration
3 2 (3.70%) Market Risk
3 2 (3.70%) Open Source
3 2 (3.70%) Derivative
3 2 (3.70%) Computer Science
3 2 (3.70%) Social Network
4 1 (1.85%) Informatics
4 1 (1.85%) Mathematics
4 1 (1.85%) Statistics
4 1 (1.85%) Management Information System
Operating Systems
1 15 (27.78%) Linux
2 7 (12.96%) UNIX
3 3 (5.56%) Windows
4 2 (3.70%) Windows Server 2003
Processes & Methodologies
1 34 (62.96%) MapReduce
2 25 (46.30%) Analytics
3 21 (38.89%) Business Intelligence
4 8 (14.81%) Agile Software Development
5 7 (12.96%) Performance Tuning
5 7 (12.96%) TDD
5 7 (12.96%) ETL
6 6 (11.11%) Unit Testing
7 5 (9.26%) Benchmarking
8 4 (7.41%) RAD
8 4 (7.41%) Scrum
8 4 (7.41%) Big Data Analytics
8 4 (7.41%) BDD
9 3 (5.56%) Machine Learning
9 3 (5.56%) Continuous Integration
10 2 (3.70%) OOP
10 2 (3.70%) OO
10 2 (3.70%) CRM
10 2 (3.70%) MVC
10 2 (3.70%) Risk Management
Programming Languages
1 26 (48.15%) Java
2 14 (25.93%) SQL
3 11 (20.37%) C#
4 10 (18.52%) Python
5 6 (11.11%) Scala
6 5 (9.26%) Bash Shell
7 3 (5.56%) Shell Script
7 3 (5.56%) C++
8 2 (3.70%) JavaScript
8 2 (3.70%) Perl
8 2 (3.70%) PL/SQL
8 2 (3.70%) R
9 1 (1.85%) Groovy
9 1 (1.85%) C
Qualifications
1 4 (7.41%) MCT
1 4 (7.41%) Microsoft Certification
2 3 (5.56%) Degree
System Software
1 24 (44.44%) Apache Flume
2 23 (42.59%) Apache ZooKeeper
3 6 (11.11%) Oracle RAC
Systems Management
1 29 (53.70%) Oozie
2 20 (37.04%) Ambari
3 8 (14.81%) Hadoop YARN
4 2 (3.70%) Opscode Chef
4 2 (3.70%) Puppet
Vendors
1 21 (38.89%) Hortonworks
2 20 (37.04%) Teradata
2 20 (37.04%) Netezza
3 19 (35.19%) MapR
4 9 (16.67%) Oracle
5 7 (12.96%) Cloudera
6 4 (7.41%) Sybase
6 4 (7.41%) Cisco
6 4 (7.41%) Microsoft
6 4 (7.41%) Intel
7 3 (5.56%) Google
8 2 (3.70%) Business Objects
8 2 (3.70%) Tableau
8 2 (3.70%) Talend
8 2 (3.70%) Rackspace
9 1 (1.85%) DoubleClick
9 1 (1.85%) Greenplum
9 1 (1.85%) IBM
9 1 (1.85%) Informatica
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