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 27 February 2015 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
27 Feb 2015
Same period 2014 Same period 2013
Hadoop Distributed File System (HDFS)
Rank 496 549 527
Rank change year-on-year
+53 -22
Contract jobs citing HDFS 80 17 10
As % of all contract IT jobs located in the UK 0.15% 0.034% 0.022%
As % of the System Software category 1.60% 0.36% 0.23%
Number of daily rates quoted 61 14 6
Average daily rate
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of your Daily Rate
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£525 £425 £455
Average daily rate % change year-on-year
+23.52% -6.59%
90% offered a daily rate of more than £431 £381 £449
10% offered a daily rate of more than £725 £500 £558
UK excluding London average daily rate £513 - -
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
4999 4712 4267
As % of all contract IT jobs located in the UK 9.53% 9.37% 9.51%
Number of daily rates quoted 2782 2306 2021
Average daily rate £385 £350 £335
Average daily rate % change year-on-year
+10.00% +4.47%
90% offered a daily rate of more than £190 £170 £175
10% offered a daily rate of more than £500 £486 £450
UK excluding London average daily rate £360 £308 £315
% change year-on-year
+17.07% -2.38%
Number of hourly rates quoted 559 540 709
Average hourly rate £16.50 £16.50 £17.50
Average hourly rate % change year-on-year
- -5.71%
90% offered a hourly rate of more than £10.50 £11.00 £10.90
10% offered a hourly rate of more than £31.15 £35.00 £37.50
UK excluding London average hourly rate £16.00 £16.00 £17.00
% change year-on-year
- -5.88%

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 27 February 2015.

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 27 February 2015. 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 +45 80 £525 +23.52% 12
London +35 66 £550 +29.41% 8
City of London +11 7 £563 +32.35% 4
East Midlands - 7 £525 -
Northamptonshire - 7 £525 -
East of England - 3 - - 1
North West - 3 - -
Northampton - 3 £450 -
Cambridgeshire - 1 - - 1
Cheshire - - - -
Gloucestershire - - - -
Hertfordshire - - - -
South West - - - -
West Midlands - - - -
Peterborough - - - - 1
Manchester - - - -
Birmingham - - - -
Glasgow - - - -
Hemel Hempstead - - - -
Leeds - - - -
West Yorkshire - - - -
Yorkshire - - - -
Scotland - - - -

HDFS
Top 30 Related IT Skills

For the 6 months to 27 February 2015, 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.

1 107 (97.27%) Hadoop
2 89 (80.91%) Big Data
3 86 (78.18%) Apache Hive
4 63 (57.27%) Java
5 61 (55.45%) HBase
6 57 (51.82%) MapReduce
7 49 (44.55%) Apache Spark
8 45 (40.91%) Apache Pig
9 39 (35.45%) SQL
10 37 (33.64%) Python
11 36 (32.73%) Apache Flume
12 35 (31.82%) Hadoop YARN
13 34 (30.91%) Agile Software Development
14 33 (30.00%) Impala
14 33 (30.00%) Sqoop
15 32 (29.09%) MongoDB
16 31 (28.18%) NoSQL
17 30 (27.27%) Kafka
17 30 (27.27%) Scala
17 30 (27.27%) Oozie
17 30 (27.27%) Linux
18 29 (26.36%) Banking
19 27 (24.55%) Data Warehouse
20 26 (23.64%) UNIX
21 25 (22.73%) Analytics
22 24 (21.82%) Apache Cassandra
23 22 (20.00%) Oracle
23 22 (20.00%) Business Intelligence
24 21 (19.09%) Cloudera
25 19 (17.27%) Cascading

HDFS
Top Related IT Skills by Category

For the 6 months to 27 February 2015, 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 49 (44.55%) Apache Spark
2 45 (40.91%) Apache Pig
3 18 (16.36%) SAS
4 8 (7.27%) Apache
5 3 (2.73%) Oracle Coherence
5 3 (2.73%) Apache Solr
6 1 (0.91%) Elasticsearch
Applications
1 1 (0.91%) MS Excel
1 1 (0.91%) Weka
Business Applications
1 2 (1.82%) SAP Oil and Gas
Cloud Services
1 3 (2.73%) Microsoft Azure
1 3 (2.73%) Amazon AWS
2 1 (0.91%) GitHub
2 1 (0.91%) Amazon EMR
2 1 (0.91%) Google Cloud Platform
Communications & Networking
1 4 (3.64%) Kerberos
2 3 (2.73%) LAN
2 3 (2.73%) WAN
2 3 (2.73%) Network Security
3 2 (1.82%) DNS
4 1 (0.91%) RTP
Database & Business Intelligence
1 107 (97.27%) Hadoop
2 89 (80.91%) Big Data
3 86 (78.18%) Apache Hive
4 61 (55.45%) HBase
5 33 (30.00%) Sqoop
5 33 (30.00%) Impala
6 32 (29.09%) MongoDB
7 31 (28.18%) NoSQL
8 27 (24.55%) Data Warehouse
9 24 (21.82%) Apache Cassandra
10 15 (13.64%) Relational Database
11 14 (12.73%) Mahout
12 13 (11.82%) RDBMS
13 11 (10.00%) OrientDB
14 10 (9.09%) SQL Server
14 10 (9.09%) HCatalog
15 9 (8.18%) Couchbase
16 8 (7.27%) Riak
16 8 (7.27%) Oracle Exadata
17 7 (6.36%) MarkLogic
Development Applications
1 4 (3.64%) PyUnit
2 1 (0.91%) Cucumber
2 1 (0.91%) Maven
2 1 (0.91%) Talend Open Studio
2 1 (0.91%) Git (software)
General
1 29 (26.36%) Banking
2 14 (12.73%) Finance
3 7 (6.36%) Investment Banking
4 5 (4.55%) Retail
5 4 (3.64%) Marketing
6 2 (1.82%) Manufacturing
6 2 (1.82%) Electronics
6 2 (1.82%) Telecoms
7 1 (0.91%) Front Office
Job Titles
1 48 (43.64%) Developer
2 39 (35.45%) Hadoop Developer
3 28 (25.45%) Architect
4 16 (14.55%) Big Data Developer
5 13 (11.82%) Data Architect
6 12 (10.91%) Administrator
7 10 (9.09%) Big Data Architect
8 8 (7.27%) Hadoop Administrator
8 8 (7.27%) Programmer
9 7 (6.36%) Lead Developer
10 5 (4.55%) Consultant
10 5 (4.55%) Senior Developer
11 4 (3.64%) Enterprise Architect
11 4 (3.64%) Data Modeller
11 4 (3.64%) Big Data Consultant
11 4 (3.64%) Data Consultant
12 3 (2.73%) Data Administrator
12 3 (2.73%) Data Scientist
13 2 (1.82%) Delivery Manager
13 2 (1.82%) Systems Administrator
Libraries, Frameworks & Software Standards
1 30 (27.27%) Kafka
2 19 (17.27%) Cascading
3 12 (10.91%) Akka
4 8 (7.27%) Apache Avro
5 6 (5.45%) XML
6 4 (3.64%) JDBC
6 4 (3.64%) JSON
7 3 (2.73%) RESTful
7 3 (2.73%) Java EE
7 3 (2.73%) J2EE
7 3 (2.73%) XSD
8 1 (0.91%) DOM
8 1 (0.91%) SAX
8 1 (0.91%) Lucene
8 1 (0.91%) CSS
8 1 (0.91%) HTML
8 1 (0.91%) OpenNLP
8 1 (0.91%) REST
Miscellaneous
1 18 (16.36%) Open Source
2 13 (11.82%) Visualisation
3 6 (5.45%) Analytical Skills
4 5 (4.55%) Replication
5 4 (3.64%) Credit Risk
5 4 (3.64%) Market Risk
5 4 (3.64%) Data Extraction
6 3 (2.73%) Mathematics
6 3 (2.73%) Physics
6 3 (2.73%) Clustering
7 2 (1.82%) DTV
7 2 (1.82%) Data Integration
7 2 (1.82%) Machine to Machine
8 1 (0.91%) Data Structures
8 1 (0.91%) Algorithms
8 1 (0.91%) Mobile App
8 1 (0.91%) Management Information System
8 1 (0.91%) Informatics
8 1 (0.91%) Reference Data
Operating Systems
1 30 (27.27%) Linux
2 26 (23.64%) UNIX
3 5 (4.55%) Windows
4 4 (3.64%) Red Hat Enterprise Linux
5 2 (1.82%) CentOS
6 1 (0.91%) Ubuntu
Processes & Methodologies
1 57 (51.82%) MapReduce
2 34 (30.91%) Agile Software Development
3 25 (22.73%) Analytics
4 22 (20.00%) Business Intelligence
5 18 (16.36%) OO
6 17 (15.45%) Data Modelling
7 15 (13.64%) ETL
7 15 (13.64%) Mentoring
8 9 (8.18%) Performance Tuning
9 8 (7.27%) OOP
10 7 (6.36%) TDD
10 7 (6.36%) BDD
11 6 (5.45%) Machine Learning
11 6 (5.45%) Coaching
11 6 (5.45%) Logical Data Model
12 5 (4.55%) Data Architecture
12 5 (4.55%) Technical Architecture
13 4 (3.64%) Business Analysis
13 4 (3.64%) Data Management
13 4 (3.64%) Workflow
Programming Languages
1 63 (57.27%) Java
2 39 (35.45%) SQL
3 37 (33.64%) Python
4 30 (27.27%) Scala
5 13 (11.82%) R
6 12 (10.91%) C#
7 11 (10.00%) Shell Script
8 9 (8.18%) Perl
9 8 (7.27%) PL/SQL
9 8 (7.27%) Bash Shell
10 2 (1.82%) T-SQL
10 2 (1.82%) PHP
11 1 (0.91%) C
11 1 (0.91%) C++
11 1 (0.91%) JavaScript
11 1 (0.91%) MATLAB
11 1 (0.91%) Ruby
11 1 (0.91%) Pig Latin
Qualifications
1 3 (2.73%) PhD
2 2 (1.82%) MCT
3 1 (0.91%) Microsoft Certification
3 1 (0.91%) Degree
3 1 (0.91%) VCP4
Quality Assurance & Compliance
1 2 (1.82%) Basel III
1 2 (1.82%) Dodd-Frank
2 1 (0.91%) Data Quality
System Software
1 36 (32.73%) Apache Flume
2 18 (16.36%) Apache ZooKeeper
3 4 (3.64%) Active Directory
3 4 (3.64%) Oracle RAC
Systems Management
1 35 (31.82%) Hadoop YARN
2 30 (27.27%) Oozie
3 12 (10.91%) Ambari
4 8 (7.27%) Nagios
5 4 (3.64%) Puppet
5 4 (3.64%) Graphite
6 3 (2.73%) Salt
6 3 (2.73%) Opscode Chef
7 2 (1.82%) SCOrch
7 2 (1.82%) ZABBIX
7 2 (1.82%) OpenView
7 2 (1.82%) Munin
8 1 (0.91%) Cacti
Vendors
1 22 (20.00%) Oracle
2 21 (19.09%) Cloudera
3 15 (13.64%) Teradata
4 14 (12.73%) Hortonworks
5 10 (9.09%) MapR
6 8 (7.27%) Netezza
7 6 (5.45%) Tableau
7 6 (5.45%) Informatica
8 5 (4.55%) Vertica
9 4 (3.64%) Cisco
9 4 (3.64%) SaltStack
10 3 (2.73%) Sybase
10 3 (2.73%) Intel
11 2 (1.82%) SAP
11 2 (1.82%) Splunk
11 2 (1.82%) Red Hat
12 1 (0.91%) TIBCO
12 1 (0.91%) NetApp
12 1 (0.91%) Talend
12 1 (0.91%) Business Objects
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