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 May 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
22 May 2015
Same period 2014 Same period 2013
Hadoop Distributed File System (HDFS)
Rank 557 570 543
Rank change year-on-year
+13 -27
Contract jobs citing HDFS 50 12 6
As % of all contract IT jobs located in the UK 0.092% 0.023% 0.013%
As % of the System Software category 0.94% 0.24% 0.14%
Number of daily rates quoted 36 7 6
Average daily rate
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£588 £450 £575
Average daily rate % change year-on-year
+30.55% -21.73%
UK excluding London average daily rate £500 - -
Number of hourly rates quoted 4 0 0
Average hourly rate £26.00 - -
UK excluding London average hourly rate £26.00 - -

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
5332 5007 4441
As % of all contract IT jobs located in the UK 9.84% 9.51% 9.42%
Number of daily rates quoted 2998 2669 2133
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 £165 £200
10% offered a daily rate of more than £500 £465 £475
UK excluding London average daily rate £325 £315 £325
% change year-on-year
+3.17% -3.07%
Number of hourly rates quoted 632 619 619
Average hourly rate £17.00 £16.00 £17.50
Average hourly rate % change year-on-year
+6.25% -8.57%
90% offered a hourly rate of more than £11.00 £10.12 £11.21
10% offered a hourly rate of more than £39.25 £33.50 £32.50
UK excluding London average hourly rate £16.50 £15.86 £16.00
% change year-on-year
+4.01% -0.85%

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 May 2015.

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 May 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 +12 49 £588 +30.55% 10
London +13 32 £600 +33.33% 9
City of London +17 10 £594 +39.70% 2
East of England - 7 £525 -
South East - 6 £200 - 1
Buckinghamshire - 6 £200 -
Cambridgeshire - 5 £525 -
Aylesbury - 5 £200 -
Peterborough - 5 £525 -
Bedfordshire - 1 - -
Bedford - 1 - -
Cheltenham - 1 £425 -
Milton Keynes - 1 - -
Northampton - 1 £500 -
Norwich - 1 - -
Gloucestershire - 1 £425 -
Norfolk - 1 - -
Northamptonshire - 1 £500 -
South West - 1 £425 -
East Midlands - 1 £500 -
North West - 1 - -

HDFS
Top 30 Related IT Skills

For the 6 months to 22 May 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.

1 131 (97.76%) Hadoop
2 101 (75.37%) Apache Hive
3 100 (74.63%) Big Data
4 74 (55.22%) Java
5 64 (47.76%) HBase
5 64 (47.76%) Apache Spark
6 61 (45.52%) Apache Pig
7 60 (44.78%) MapReduce
8 57 (42.54%) Impala
9 49 (36.57%) Agile Software Development
10 45 (33.58%) SQL
11 44 (32.84%) Scala
12 40 (29.85%) Apache Flume
12 40 (29.85%) Python
13 38 (28.36%) Kafka
13 38 (28.36%) Hadoop YARN
14 36 (26.87%) Sqoop
15 32 (23.88%) Oozie
16 31 (23.13%) Oracle
17 29 (21.64%) MongoDB
18 28 (20.90%) Cloudera
18 28 (20.90%) Banking
19 27 (20.15%) Data Modelling
20 26 (19.40%) NoSQL
21 25 (18.66%) OO
21 25 (18.66%) UNIX
22 23 (17.16%) Cascading
23 21 (15.67%) Finance
23 21 (15.67%) Linux
24 20 (14.93%) SAS

HDFS
Top Related IT Skills by Category

For the 6 months to 22 May 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 64 (47.76%) Apache Spark
2 61 (45.52%) Apache Pig
3 20 (14.93%) SAS
4 16 (11.94%) Apache
5 5 (3.73%) IIS
5 5 (3.73%) Tomcat
6 2 (1.49%) Oracle Coherence
6 2 (1.49%) Apache Solr
7 1 (0.75%) Elasticsearch
Applications
1 2 (1.49%) MS PowerPoint
1 2 (1.49%) MS Visio
2 1 (0.75%) Weka
Business Applications
1 2 (1.49%) SAP Oil and Gas
Cloud Services
1 14 (10.45%) Amazon AWS
2 3 (2.24%) Microsoft Azure
Communications & Networking
1 8 (5.97%) LAN
1 8 (5.97%) WAN
2 7 (5.22%) DNS
3 5 (3.73%) VPN
3 5 (3.73%) SSL
3 5 (3.73%) SMTP
3 5 (3.73%) DHCP
3 5 (3.73%) SAN
3 5 (3.73%) Firewall
3 5 (3.73%) NetScaler
3 5 (3.73%) Wireshark
4 4 (2.99%) Kerberos
5 3 (2.24%) Network Security
Database & Business Intelligence
1 131 (97.76%) Hadoop
2 101 (75.37%) Apache Hive
3 100 (74.63%) Big Data
4 64 (47.76%) HBase
5 57 (42.54%) Impala
6 36 (26.87%) Sqoop
7 29 (21.64%) MongoDB
8 26 (19.40%) NoSQL
9 20 (14.93%) Apache Cassandra
9 20 (14.93%) Relational Database
10 19 (14.18%) Data Warehouse
11 18 (13.43%) RDBMS
12 16 (11.94%) SQL Server
13 11 (8.21%) OrientDB
14 9 (6.72%) Mahout
15 7 (5.22%) MySQL
16 6 (4.48%) Data Mining
16 6 (4.48%) DB2
17 4 (2.99%) SQL Server 2012
17 4 (2.99%) MarkLogic
Development Applications
1 1 (0.75%) SonarQube
1 1 (0.75%) Visual Studio
1 1 (0.75%) Cucumber
1 1 (0.75%) PyUnit
1 1 (0.75%) SpecFlow
1 1 (0.75%) TeamCity
1 1 (0.75%) Subversion
General
1 28 (20.90%) Banking
2 21 (15.67%) Finance
3 8 (5.97%) Investment Banking
4 5 (3.73%) Retail
5 3 (2.24%) Marketing
6 2 (1.49%) Manufacturing
6 2 (1.49%) Electronics
6 2 (1.49%) Telecoms
7 1 (0.75%) Pharmaceutical
7 1 (0.75%) Front Office
7 1 (0.75%) Legal
Job Titles
1 70 (52.24%) Developer
2 62 (46.27%) Hadoop Developer
3 22 (16.42%) Architect
4 16 (11.94%) Big Data Developer
5 14 (10.45%) Administrator
6 12 (8.96%) Data Architect
7 10 (7.46%) Programmer
8 9 (6.72%) Lead Developer
8 9 (6.72%) Hadoop Administrator
8 9 (6.72%) Big Data Architect
9 5 (3.73%) Senior Developer
9 5 (3.73%) Data Scientist
10 4 (2.99%) Data Modeller
10 4 (2.99%) Java Developer
11 3 (2.24%) Trainer
11 3 (2.24%) Analyst
11 3 (2.24%) Consultant
11 3 (2.24%) Technical Analyst
11 3 (2.24%) Data Administrator
12 2 (1.49%) Linux Administrator
Libraries, Frameworks & Software Standards
1 38 (28.36%) Kafka
2 23 (17.16%) Cascading
3 12 (8.96%) Akka
4 7 (5.22%) XML
4 7 (5.22%) Apache Avro
5 4 (2.99%) JSON
5 4 (2.99%) Web Services
5 4 (2.99%) J2EE
6 3 (2.24%) HTML
6 3 (2.24%) XSD
6 3 (2.24%) RESTful
6 3 (2.24%) REST
6 3 (2.24%) Java EE
7 2 (1.49%) Spring
7 2 (1.49%) Hibernate
8 1 (0.75%) Spark Streaming
8 1 (0.75%) GraphX
8 1 (0.75%) OpenNLP
8 1 (0.75%) CSS
8 1 (0.75%) JDBC
Miscellaneous
1 15 (11.19%) Open Source
2 11 (8.21%) Analytical Skills
3 7 (5.22%) Replication
4 6 (4.48%) Market Risk
5 5 (3.73%) Visualisation
5 5 (3.73%) Credit Risk
5 5 (3.73%) Mathematics
5 5 (3.73%) Physics
6 3 (2.24%) Algorithms
6 3 (2.24%) Clustering
6 3 (2.24%) Equities
6 3 (2.24%) Data Integration
6 3 (2.24%) Statistics
7 2 (1.49%) Neural Network
7 2 (1.49%) Credit Derivative
7 2 (1.49%) Derivative
7 2 (1.49%) Computer Science
7 2 (1.49%) DTV
7 2 (1.49%) Foreign Exchange (FX)
8 1 (0.75%) Machine to Machine
Operating Systems
1 25 (18.66%) UNIX
2 21 (15.67%) Linux
3 9 (6.72%) Windows
4 4 (2.99%) Red Hat Enterprise Linux
5 2 (1.49%) CentOS
Processes & Methodologies
1 60 (44.78%) MapReduce
2 49 (36.57%) Agile Software Development
3 27 (20.15%) Data Modelling
4 25 (18.66%) OO
5 19 (14.18%) Analytics
6 16 (11.94%) Mentoring
7 13 (9.70%) Business Intelligence
7 13 (9.70%) ETL
7 13 (9.70%) BDD
8 10 (7.46%) Scrum
9 9 (6.72%) E-Commerce
9 9 (6.72%) TDD
10 8 (5.97%) OOP
11 7 (5.22%) Data Architecture
12 6 (4.48%) Machine Learning
12 6 (4.48%) Logical Data Model
12 6 (4.48%) Performance Tuning
13 5 (3.73%) Network Monitoring
13 5 (3.73%) Coaching
13 5 (3.73%) Stakeholder Management
Programming Languages
1 74 (55.22%) Java
2 45 (33.58%) SQL
3 44 (32.84%) Scala
4 40 (29.85%) Python
5 19 (14.18%) R
6 17 (12.69%) Shell Script
7 15 (11.19%) C#
8 10 (7.46%) PL/SQL
9 9 (6.72%) Perl
10 8 (5.97%) Bash Shell
11 5 (3.73%) T-SQL
11 5 (3.73%) PowerShell
12 3 (2.24%) MATLAB
13 2 (1.49%) C++
13 2 (1.49%) PHP
13 2 (1.49%) JavaScript
14 1 (0.75%) C
14 1 (0.75%) Pig Latin
14 1 (0.75%) Ruby
Qualifications
1 5 (3.73%) PhD
2 3 (2.24%) MCT
2 3 (2.24%) Degree
3 2 (1.49%) Security Cleared
4 1 (0.75%) Microsoft Certification
4 1 (0.75%) SC Cleared
4 1 (0.75%) DV Cleared
Quality Assurance & Compliance
1 2 (1.49%) Basel III
1 2 (1.49%) Dodd-Frank
2 1 (0.75%) Data Quality
System Software
1 40 (29.85%) Apache Flume
2 12 (8.96%) Apache ZooKeeper
3 9 (6.72%) Active Directory
4 5 (3.73%) VMware Infrastructure
4 5 (3.73%) XenApp
4 5 (3.73%) XenDesktop
5 3 (2.24%) Oracle RAC
Systems Management
1 38 (28.36%) Hadoop YARN
2 32 (23.88%) Oozie
3 13 (9.70%) Nagios
4 7 (5.22%) Ambari
5 5 (3.73%) Zenoss
6 4 (2.99%) Puppet
6 4 (2.99%) Graphite
7 3 (2.24%) Salt
7 3 (2.24%) Opscode Chef
8 2 (1.49%) ZABBIX
8 2 (1.49%) Munin
8 2 (1.49%) OpenView
8 2 (1.49%) SCOrch
9 1 (0.75%) Cacti
Vendors
1 31 (23.13%) Oracle
2 28 (20.90%) Cloudera
3 9 (6.72%) Teradata
4 7 (5.22%) Hortonworks
5 6 (4.48%) Splunk
5 6 (4.48%) Informatica
6 5 (3.73%) Citrix
6 5 (3.73%) VMware
6 5 (3.73%) AppSense
6 5 (3.73%) Vertica
6 5 (3.73%) MapR
7 4 (2.99%) Cisco
7 4 (2.99%) SaltStack
8 3 (2.24%) Sybase
8 3 (2.24%) Tableau
9 2 (1.49%) Netezza
9 2 (1.49%) Red Hat
9 2 (1.49%) IBM
9 2 (1.49%) HP
9 2 (1.49%) Intel
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