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 19 December 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
19 Dec 2014
Same period 2013 Same period 2012
Hadoop Distributed File System (HDFS)
Rank 548 564 554
Rank change year-on-year
+16 -10
Contract jobs citing HDFS 47 18 3
As % of all contract IT jobs located in the UK 0.085% 0.035% 0.006%
As % of the System Software category 0.88% 0.34% 0.065%
Number of daily rates quoted 28 13 3
Average daily rate
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of your Daily Rate
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£525 £450 £550
Average daily rate % change year-on-year
+16.66% -18.18%
90% offered a daily rate of more than £429 £405 £510
10% offered a daily rate of more than £723 £550 £650
UK excluding London average daily rate £525 - -
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
5362 5261 4582
As % of all contract IT jobs located in the UK 9.72% 10.19% 9.23%
Number of daily rates quoted 2967 2698 2141
Average daily rate £360 £350 £350
Average daily rate % change year-on-year
+2.85% -
90% offered a daily rate of more than £188 £170 £170
10% offered a daily rate of more than £500 £500 £470
UK excluding London average daily rate £350 £300 £325
% change year-on-year
+16.66% -7.69%
Number of hourly rates quoted 659 631 773
Average hourly rate £16.50 £16.00 £18.00
Average hourly rate % change year-on-year
+3.12% -11.11%
90% offered a hourly rate of more than £11.00 £11.00 £11.00
10% offered a hourly rate of more than £35.00 £31.56 £37.50
UK excluding London average hourly rate £16.50 £15.50 £17.50
% change year-on-year
+6.45% -11.42%

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 19 December 2014.

HDFS Daily Rate Histogram in the UK

HDFS
Top 23 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 19 December 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 -1 47 £525 +16.66% 9
London +38 37 £575 +27.77% 8
South East -20 4 - -
Northamptonshire - 4 £525 -
East Midlands - 4 £525 -
City of London +1 3 £500 +16.27% 3
Buckinghamshire - 1 - -
Milton Keynes - 1 - -
Northampton - 1 - -
Southampton - - - -
Cambridge - - - -
Chatham - - - -
Huddersfield - - - -
Knutsford - - - -
Cambridgeshire - - - -
Cheshire - - - - 1
Hampshire - - - -
Kent - - - -
North West - - - - 1
West Yorkshire - - - -
Yorkshire - - - -
Hackney - - - -
East of England - - - -

HDFS
Top 30 Related IT Skills

For the 6 months to 19 December 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 80 (96.39%) Hadoop
2 73 (87.95%) Big Data
3 68 (81.93%) Apache Hive
4 53 (63.86%) MapReduce
5 47 (56.63%) HBase
6 42 (50.60%) Java
7 39 (46.99%) NoSQL
8 37 (44.58%) MongoDB
9 34 (40.96%) Apache Cassandra
9 34 (40.96%) Apache Flume
9 34 (40.96%) Banking
10 31 (37.35%) Data Warehouse
11 30 (36.14%) Analytics
11 30 (36.14%) Sqoop
11 30 (36.14%) Oozie
12 27 (32.53%) Apache Pig
13 25 (30.12%) Apache ZooKeeper
13 25 (30.12%) Mahout
13 25 (30.12%) Visualisation
13 25 (30.12%) SQL
14 24 (28.92%) Business Intelligence
14 24 (28.92%) Teradata
15 23 (27.71%) Agile Software Development
15 23 (27.71%) Python
15 23 (27.71%) Hortonworks
15 23 (27.71%) HCatalog
15 23 (27.71%) Hadoop YARN
16 22 (26.51%) Apache Spark
16 22 (26.51%) MapR
16 22 (26.51%) Ambari

HDFS
Top Related IT Skills by Category

For the 6 months to 19 December 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 27 (32.53%) Apache Pig
2 22 (26.51%) Apache Spark
3 9 (10.84%) SAS
4 6 (7.23%) Apache
5 5 (6.02%) Oracle Coherence
6 2 (2.41%) Elasticsearch
7 1 (1.20%) Apache Solr
7 1 (1.20%) Confluence
Applications
1 1 (1.20%) MS Excel
Business Applications
1 2 (2.41%) SAP Oil and Gas
Cloud Services
1 2 (2.41%) Microsoft Azure
1 2 (2.41%) Amazon AWS
1 2 (2.41%) Cloud Computing
2 1 (1.20%) Amazon EMR
2 1 (1.20%) GitHub
2 1 (1.20%) Google Cloud Platform
Communications & Networking
1 5 (6.02%) LAN
1 5 (6.02%) WAN
2 2 (2.41%) LDAP
2 2 (2.41%) AMQP
3 1 (1.20%) RTP
Database & Business Intelligence
1 80 (96.39%) Hadoop
2 73 (87.95%) Big Data
3 68 (81.93%) Apache Hive
4 47 (56.63%) HBase
5 39 (46.99%) NoSQL
6 37 (44.58%) MongoDB
7 34 (40.96%) Apache Cassandra
8 31 (37.35%) Data Warehouse
9 30 (36.14%) Sqoop
10 25 (30.12%) Mahout
11 23 (27.71%) HCatalog
12 21 (25.30%) Couchbase
13 20 (24.10%) Riak
13 20 (24.10%) Oracle Exadata
14 19 (22.89%) MarkLogic
15 13 (15.66%) Impala
16 9 (10.84%) OrientDB
16 9 (10.84%) SQL Server
17 7 (8.43%) DB2
18 5 (6.02%) Relational Database
Development Applications
1 4 (4.82%) JUnit
1 4 (4.82%) Git (software)
2 3 (3.61%) PyUnit
2 3 (3.61%) JIRA
3 2 (2.41%) Maven
3 2 (2.41%) Jenkins
3 2 (2.41%) Mockito
3 2 (2.41%) Cucumber
4 1 (1.20%) Hudson
4 1 (1.20%) TeamCity
4 1 (1.20%) Talend Open Studio
General
1 34 (40.96%) Banking
2 15 (18.07%) Finance
3 7 (8.43%) Investment Banking
4 6 (7.23%) Marketing
5 2 (2.41%) Electronics
5 2 (2.41%) Telecoms
5 2 (2.41%) Manufacturing
5 2 (2.41%) Financial Institution
5 2 (2.41%) Retail
6 1 (1.20%) Front Office
Job Titles
1 34 (40.96%) Developer
2 28 (33.73%) Architect
3 18 (21.69%) Hadoop Developer
4 14 (16.87%) Enterprise Architect
4 14 (16.87%) Big Data Developer
5 10 (12.05%) Data Architect
5 10 (12.05%) Big Data Architect
6 5 (6.02%) Java Developer
7 4 (4.82%) Consultant
7 4 (4.82%) Data Modeller
7 4 (4.82%) Senior Developer
7 4 (4.82%) Programmer
7 4 (4.82%) Lead Architect
8 3 (3.61%) Hadoop Administrator
8 3 (3.61%) Big Data Consultant
8 3 (3.61%) Lead Enterprise Architect
8 3 (3.61%) Data Consultant
8 3 (3.61%) Lead Developer
8 3 (3.61%) Administrator
8 3 (3.61%) Trainer
Libraries, Frameworks & Software Standards
1 19 (22.89%) Kafka
2 12 (14.46%) Cascading
3 9 (10.84%) Akka
4 5 (6.02%) XML
4 5 (6.02%) JDBC
5 4 (4.82%) HTML
5 4 (4.82%) JSON
6 3 (3.61%) ActiveMQ
6 3 (3.61%) J2EE
6 3 (3.61%) Web Services
7 2 (2.41%) XSD
7 2 (2.41%) JSP
7 2 (2.41%) Servlets
7 2 (2.41%) SOAP
7 2 (2.41%) JMS
7 2 (2.41%) Java EE
7 2 (2.41%) Spring
7 2 (2.41%) Apache Avro
7 2 (2.41%) Apache Camel
7 2 (2.41%) RESTful
Miscellaneous
1 25 (30.12%) Visualisation
2 9 (10.84%) Open Source
3 4 (4.82%) Market Risk
3 4 (4.82%) Data Extraction
4 3 (3.61%) Analytical Skills
4 3 (3.61%) Algorithms
5 2 (2.41%) DTV
5 2 (2.41%) Social Network
5 2 (2.41%) Computer Science
5 2 (2.41%) Derivative
5 2 (2.41%) Machine to Machine
5 2 (2.41%) Data Integration
6 1 (1.20%) Credit Risk
6 1 (1.20%) Reference Data
6 1 (1.20%) Mobile App
6 1 (1.20%) Data Structures
6 1 (1.20%) Statistics
6 1 (1.20%) Informatics
6 1 (1.20%) Mathematics
6 1 (1.20%) Management Information System
Operating Systems
1 22 (26.51%) Linux
2 17 (20.48%) UNIX
3 3 (3.61%) Windows
4 2 (2.41%) Windows Server 2003
5 1 (1.20%) Ubuntu
Processes & Methodologies
1 53 (63.86%) MapReduce
2 30 (36.14%) Analytics
3 24 (28.92%) Business Intelligence
4 23 (27.71%) Agile Software Development
5 13 (15.66%) ETL
6 11 (13.25%) OO
7 10 (12.05%) Mentoring
8 9 (10.84%) Performance Tuning
9 8 (9.64%) TDD
10 7 (8.43%) OOP
11 6 (7.23%) Benchmarking
12 5 (6.02%) Scrum
12 5 (6.02%) Data Modelling
13 4 (4.82%) Technical Architecture
13 4 (4.82%) Business Analysis
14 3 (3.61%) BDD
14 3 (3.61%) Machine Learning
14 3 (3.61%) Big Data Analytics
14 3 (3.61%) Customer Insight
14 3 (3.61%) Unit Testing
Programming Languages
1 42 (50.60%) Java
2 25 (30.12%) SQL
3 23 (27.71%) Python
4 17 (20.48%) Scala
5 12 (14.46%) C#
6 9 (10.84%) Shell Script
7 7 (8.43%) Perl
8 6 (7.23%) PL/SQL
9 4 (4.82%) R
10 2 (2.41%) C++
10 2 (2.41%) PHP
10 2 (2.41%) JavaScript
10 2 (2.41%) Bash Shell
11 1 (1.20%) Groovy
11 1 (1.20%) Pig Latin
11 1 (1.20%) C
Qualifications
1 3 (3.61%) Microsoft Certification
1 3 (3.61%) MCT
2 2 (2.41%) Degree
System Software
1 34 (40.96%) Apache Flume
2 25 (30.12%) Apache ZooKeeper
3 6 (7.23%) Oracle RAC
Systems Management
1 30 (36.14%) Oozie
2 23 (27.71%) Hadoop YARN
3 22 (26.51%) Ambari
4 2 (2.41%) Opscode Chef
4 2 (2.41%) Puppet
Vendors
1 24 (28.92%) Teradata
2 23 (27.71%) Hortonworks
3 22 (26.51%) MapR
4 20 (24.10%) Netezza
5 16 (19.28%) Oracle
6 10 (12.05%) Cloudera
7 5 (6.02%) Cisco
7 5 (6.02%) Intel
7 5 (6.02%) Sybase
8 4 (4.82%) Informatica
9 3 (3.61%) Tableau
9 3 (3.61%) Google
9 3 (3.61%) Microsoft
10 2 (2.41%) Business Objects
10 2 (2.41%) SAP
10 2 (2.41%) Rackspace
11 1 (1.20%) Splunk
11 1 (1.20%) Talend
11 1 (1.20%) Greenplum
11 1 (1.20%) Datameer
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