The table below looks at the prevalence of the term Data Structures in contract job vacancies. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Structures over the 3 months to 28 March 2017 with a comparison to the same period over the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Data Structures
UK
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 306 388 339
Rank change year-on-year +82 -49  
Contract jobs citing Data Structures 331 264 345
As % of all contract IT jobs advertised in the UK 0.73% 0.49% 0.64%
As % of the Miscellaneous category 2.30% 1.58% 2.11%
Number of daily rates quoted 226 173 203
Median daily rate £444 £474 £425
Median daily rate % change year-on-year -6.33% +11.47%  
90% offered a daily rate of more than £311 £325 £300
10% offered a daily rate of more than £638 £696 £596
UK excluding London median daily rate £413 £413 £400
% change year-on-year - +3.12%  
Number of hourly rates quoted 3 6 7
Median hourly rate £30.00 £35.00 £20.00
Median hourly rate % change year-on-year -14.28% +75.00%  
90% offered a hourly rate of more than £24.00 £33.60 £15.75
10% offered a hourly rate of more than £32.00 £45.50 £36.00
UK excluding London median hourly rate £27.50 £35.00 £15.75
% change year-on-year -21.42% +122.22%  

Data Structures is in the generic IT skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for generic IT skills.

Generic IT Skills
UK
Contract job vacancies with a requirement for generic IT skills 14408 16675 16347
As % of all contract IT job vacancies advertised in the UK 31.96% 31.12% 30.26%
Number of daily rates quoted 9314 10891 9856
Median daily rate £450 £425 £420
Median daily rate % change year-on-year +5.88% +1.19%  
90% offered a daily rate of more than £265 £260 £250
10% offered a daily rate of more than £625 £625 £600
UK excluding London median daily rate £400 £375 £375
% change year-on-year +6.66% -  
Number of hourly rates quoted 535 564 695
Median hourly rate £22.50 £22.84 £18.83
Median hourly rate % change year-on-year -1.46% +21.30%  
90% offered a hourly rate of more than £11.33 £12.50 £11.76
10% offered a hourly rate of more than £50.00 £51.00 £45.00
UK excluding London median hourly rate £18.68 £27.22 £18.83
% change year-on-year -31.36% +44.56%  

Data Structures
Job Vacancy Trend

The job posting trend of jobs advertised citing Data Structures as a proportion of all contract or permanent IT jobs with a match in the Miscellaneous category.

Job vacancy trend for Data Structures in the UK

Data Structures
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Data Structures.

Contractor daily rate trend for Data Structures in the UK

Data Structures
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Data Structures over the 3 months to 28 March 2017.

Contractor daily rate histogram for Data Structures in the UK

Data Structures
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Data Structures.

Contractor hourly rate trend for Data Structures in the UK

Data Structures
Top 30 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Data Structures within the UK over the 3 months to 28 March 2017. 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 Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +75 309 £450 -5.26% 115
London +60 175 £475 -13.63% 80
City of London +3 44 £500 -16.66% 12
South East +14 28 £425 +3.78% 5
East of England +11 25 £550 +20.87% 4
Yorkshire +16 24 £400 +3.22% 6
North West +36 23 £369 -13.23% 8
Leeds +12 18 £400 +3.22% 5
West Yorkshire +10 18 £400 +3.22% 5
Scotland +24 13 £475 +26.66% 2
Manchester +12 10 £413 -17.50% 6
South West +2 10 £425 +1.79% 2
Cheshire +31 9 £363 +37.18% 1
Hertfordshire +11 9 £675 -
Bristol +10 8 £381 -7.57%
West Midlands +5 8 £410 -13.68% 2
Surrey - 8 £413 - 1
West Sussex - 8 £425 -
Essex +1 7 £330 +32.00%
East Midlands -6 7 £490 +30.66% 5
Canary Wharf - 7 £575 -
Edinburgh +23 6 £475 +50.79% 1
Chester +16 6 £350 -3.44%
South Yorkshire +8 5 - - 1
Sheffield - 5 - - 1
Hatfield - 5 £675 -
Wales - 5 £500 - 2
South Wales - 5 £500 - 1
Cambridge +10 4 £225 -47.05% 4
Warwickshire +5 4 £425 -

For the 6 months to 28 March 2017, IT contractor jobs citing Data Structures also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for Data Structures.

1 210 (33.12%) SQL
2 192 (30.28%) Java
3 186 (29.34%) Agile Software Development
4 154 (24.29%) Finance
5 137 (21.61%) OO
6 135 (21.29%) Data Modelling
7 134 (21.14%) Algorithms
8 119 (18.77%) Data Management
9 118 (18.61%) Oracle
10 95 (14.98%) SQL Server
10 95 (14.98%) Business Intelligence
11 87 (13.72%) Migration
12 86 (13.56%) Banking
13 77 (12.15%) Multithreading
14 76 (11.99%) Data Quality
15 75 (11.83%) Git (software)
16 74 (11.67%) Analytical Skills
17 72 (11.36%) Linux
18 70 (11.04%) OOD
19 68 (10.73%) Data Warehouse
19 68 (10.73%) Data Migration
20 67 (10.57%) HTML
21 66 (10.41%) TDD
21 66 (10.41%) NoSQL
22 64 (10.09%) Data Analysis
23 62 (9.78%) Degree
23 62 (9.78%) C#
23 62 (9.78%) ETL
24 60 (9.46%) JavaScript
24 60 (9.46%) Python

Data Structures
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 16 (2.52%) CMS
1 16 (2.52%) Tomcat
2 15 (2.37%) Apache Spark
2 15 (2.37%) SAS
3 12 (1.89%) Apache
4 11 (1.74%) SharePoint
5 9 (1.42%) Mule
5 9 (1.42%) WebLogic
6 8 (1.26%) JBoss
6 8 (1.26%) Oracle SOA Suite
7 7 (1.10%) Apache Pig
8 4 (0.63%) Apache Solr
9 3 (0.47%) BizTalk Server
9 3 (0.47%) Confluence
9 3 (0.47%) SharePoint 2010
9 3 (0.47%) WordPress
10 2 (0.32%) IBM Notes
10 2 (0.32%) Oracle Spatial
10 2 (0.32%) Oracle Workflow
10 2 (0.32%) WebSphere
Applications
1 32 (5.05%) MS Excel
2 18 (2.84%) MS Office
3 9 (1.42%) MS Visio
4 7 (1.10%) Spreadsheet
5 4 (0.63%) MS PowerPoint
6 2 (0.32%) InfoPath
7 1 (0.16%) Mingle
7 1 (0.16%) Photoshop
7 1 (0.16%) SPSS
Business Applications
1 12 (1.89%) SAP MDM
2 8 (1.26%) SAP MDG
3 7 (1.10%) SAP HR
4 5 (0.79%) Dynamics CRM
4 5 (0.79%) Oracle EBS R12
5 4 (0.63%) Oracle Payroll
5 4 (0.63%) Temenos T24
6 3 (0.47%) Dynamics AX
6 3 (0.47%) Oracle EBS
6 3 (0.47%) Oracle Utilities
6 3 (0.47%) Sage 1000
6 3 (0.47%) SAP S/4HANA
7 2 (0.32%) Eloqua
7 2 (0.32%) Infor M3
7 2 (0.32%) Oracle iRecruitment
7 2 (0.32%) Oracle Payables
7 2 (0.32%) SAP BPC
7 2 (0.32%) SAP CAR
7 2 (0.32%) SAP ERP
7 2 (0.32%) SAP POS DM
Cloud Services
1 46 (7.26%) Amazon AWS
2 10 (1.58%) Microsoft Azure
3 9 (1.42%) Cloud Computing
4 5 (0.79%) Amazon EC2
4 5 (0.79%) Amazon S3
4 5 (0.79%) SaaS
5 4 (0.63%) Amazon SQS
5 4 (0.63%) AWS Data Pipeline
6 3 (0.47%) PaaS
7 2 (0.32%) Google Analytics
7 2 (0.32%) Office 365
8 1 (0.16%) FinancialForce.com
8 1 (0.16%) G Suite
8 1 (0.16%) GitHub
8 1 (0.16%) Google Cloud Platform
8 1 (0.16%) Google Play
8 1 (0.16%) Heroku
8 1 (0.16%) TestFlight
8 1 (0.16%) Trello
Communications & Networking
1 12 (1.89%) Internet
2 9 (1.42%) TCP/IP
3 7 (1.10%) Network Security
4 5 (0.79%) Intranet
5 4 (0.63%) DPNSS
5 4 (0.63%) Q.931
6 3 (0.47%) DSL
7 2 (0.32%) Firewall
7 2 (0.32%) HTTP
7 2 (0.32%) LDAP
7 2 (0.32%) PuTTY
7 2 (0.32%) WinSCP
8 1 (0.16%) Broadband
8 1 (0.16%) DHCP
8 1 (0.16%) DMS-100
8 1 (0.16%) DNS
8 1 (0.16%) Skype
Database & Business Intelligence
1 95 (14.98%) SQL Server
2 68 (10.73%) Data Warehouse
3 66 (10.41%) NoSQL
4 55 (8.68%) Big Data
5 54 (8.52%) Relational Database
6 43 (6.78%) Hadoop
7 35 (5.52%) SQL Server Reporting Services
8 33 (5.21%) MongoDB
9 31 (4.89%) SQL Server Integration Services
10 30 (4.73%) DB2
11 26 (4.10%) Oracle Database
12 23 (3.63%) Apache Hive
13 20 (3.15%) MySQL
13 20 (3.15%) SQL Server 2008
14 19 (3.00%) BusinessObjects
15 17 (2.68%) Apache Cassandra
15 17 (2.68%) KDB
15 17 (2.68%) Oracle Reports
16 16 (2.52%) HBase
17 11 (1.74%) Neo4j
Development Applications
1 75 (11.83%) Git (software)
2 42 (6.62%) Jenkins
2 42 (6.62%) JIRA
3 40 (6.31%) Subversion
4 39 (6.15%) Maven
5 30 (4.73%) Mercurial
6 28 (4.42%) Ant
7 20 (3.15%) Gradle
8 17 (2.68%) JUnit
9 15 (2.37%) Team Foundation Server
10 11 (1.74%) Mockito
11 10 (1.58%) Selenium
12 8 (1.26%) Gerrit
12 8 (1.26%) LSMW
13 6 (0.95%) Android Studio
13 6 (0.95%) Cucumber
13 6 (0.95%) EasyMock
13 6 (0.95%) Hudson
13 6 (0.95%) IntelliJ
13 6 (0.95%) Visual Studio
General
1 154 (24.29%) Finance
2 86 (13.56%) Banking
3 42 (6.62%) Investment Banking
4 34 (5.36%) Front Office
5 33 (5.21%) Retail
6 15 (2.37%) Legal
7 14 (2.21%) Publishing
8 13 (2.05%) Marketing
9 8 (1.26%) Advertising
10 7 (1.10%) Games
10 7 (1.10%) Telecoms
11 6 (0.95%) Law
12 5 (0.79%) Manufacturing
13 4 (0.63%) Automotive
13 4 (0.63%) Pharmaceutical
13 4 (0.63%) Retail Banking
14 3 (0.47%) Back Office
14 3 (0.47%) Financial Institution
15 2 (0.32%) Corporate Banking
15 2 (0.32%) Local Government
Job Titles
1 257 (40.54%) Developer
2 129 (20.35%) Analyst
3 120 (18.93%) Architect
4 94 (14.83%) Java Developer
5 68 (10.73%) Data Architect
6 56 (8.83%) Data Analyst
7 40 (6.31%) Consultant
8 33 (5.21%) Business Analyst
9 26 (4.10%) Systems Analyst
10 25 (3.94%) Hybris Developer
10 25 (3.94%) Senior Developer
11 22 (3.47%) C# Developer
12 19 (3.00%) SQL Analyst
13 18 (2.84%) SQL Developer
14 17 (2.68%) Business Systems Analyst
15 15 (2.37%) Senior Java Developer
16 14 (2.21%) SAP Architect
16 14 (2.21%) Software Engineer
17 13 (2.05%) Integration Architect
17 13 (2.05%) Solutions Architect
Libraries, Frameworks & Software Standards
1 67 (10.57%) HTML
2 58 (9.15%) XML
3 52 (8.20%) Spring
4 47 (7.41%) CSS
5 44 (6.94%) .NET
6 42 (6.62%) HTML5
6 42 (6.62%) Web Services
7 30 (4.73%) REST
8 29 (4.57%) Kafka
8 29 (4.57%) SOAP
9 22 (3.47%) J2EE
9 22 (3.47%) JSON
10 21 (3.31%) Hibernate
11 17 (2.68%) .NET Framework
11 17 (2.68%) Node.js
12 16 (2.52%) Java EE
13 15 (2.37%) AngularJS
14 14 (2.21%) RESTful
15 13 (2.05%) Apache Camel
15 13 (2.05%) WPF
Miscellaneous
1 134 (21.14%) Algorithms
2 74 (11.67%) Analytical Skills
3 55 (8.68%) Management Information System
4 43 (6.78%) Computer Science
5 22 (3.47%) Fintech
6 19 (3.00%) Reference Data
7 16 (2.52%) Derivative
8 15 (2.37%) Equities
8 15 (2.37%) User Experience
9 14 (2.21%) Foreign Exchange (FX)
10 13 (2.05%) Fixed Income
10 13 (2.05%) Mobile App
11 10 (1.58%) iPhone
11 10 (1.58%) Taxonomies
12 9 (1.42%) Mainframe
13 8 (1.26%) Hedge funds
14 7 (1.10%) Linux Command Line
14 7 (1.10%) Replication
15 6 (0.95%) IVR
16 5 (0.79%) Freedom of Information
Operating Systems
1 72 (11.36%) Linux
2 40 (6.31%) Unix
2 40 (6.31%) Windows
3 23 (3.63%) Apple iOS
4 21 (3.31%) Android
5 7 (1.10%) Windows Vista
6 6 (0.95%) Red Hat Enterprise Linux
7 2 (0.32%) Ubuntu
7 2 (0.32%) Windows 7
8 1 (0.16%) Oracle Linux
8 1 (0.16%) Windows Server 2003
8 1 (0.16%) Windows Server 2012
Processes & Methodologies
1 186 (29.34%) Agile Software Development
2 137 (21.61%) OO
3 135 (21.29%) Data Modelling
4 119 (18.77%) Data Management
5 95 (14.98%) Business Intelligence
6 87 (13.72%) Migration
7 77 (12.15%) Multithreading
8 70 (11.04%) OOD
9 68 (10.73%) Data Migration
10 66 (10.41%) TDD
11 64 (10.09%) Data Analysis
12 62 (9.78%) ETL
13 54 (8.52%) Continuous Integration
14 52 (8.20%) Data Architecture
15 51 (8.04%) SDLC
15 51 (8.04%) Software Engineering
16 48 (7.57%) Analytics
17 41 (6.47%) DevOps
18 40 (6.31%) Automated Testing
19 39 (6.15%) Project Management
Programming Languages
1 210 (33.12%) SQL
2 192 (30.28%) Java
3 62 (9.78%) C#
4 60 (9.46%) JavaScript
4 60 (9.46%) Python
5 52 (8.20%) C++
6 32 (5.05%) PL/SQL
7 31 (4.89%) T-SQL
8 30 (4.73%) Scala
9 28 (4.42%) Clojure
10 23 (3.63%) Go
11 20 (3.15%) Rust
12 19 (3.00%) F#
12 19 (3.00%) Shell Script
13 15 (2.37%) Bash Shell
13 15 (2.37%) R
14 13 (2.05%) Groovy
14 13 (2.05%) PHP
15 11 (1.74%) Apple Swift
16 8 (1.26%) C
Qualifications
1 62 (9.78%) Degree
2 33 (5.21%) Security Cleared
3 22 (3.47%) SC Cleared
4 5 (0.79%) ISEB
5 3 (0.47%) BPSS Clearance
5 3 (0.47%) PRINCE2 Certification
6 2 (0.32%) CTC Cleared
7 1 (0.16%) ACCA
7 1 (0.16%) CIMA
7 1 (0.16%) DV Cleared
7 1 (0.16%) IBM Certification
7 1 (0.16%) ITIL Certification
7 1 (0.16%) MOS
7 1 (0.16%) PhD
7 1 (0.16%) Postgraduate
Quality Assurance & Compliance
1 76 (11.99%) Data Quality
2 40 (6.31%) QA
3 9 (1.42%) GDPR
4 4 (0.63%) Solvency II
5 1 (0.16%) Actionable Recommendations
5 1 (0.16%) CDISC
5 1 (0.16%) Disclosure Scotland
5 1 (0.16%) GxP
5 1 (0.16%) HL7
5 1 (0.16%) ISO13485
5 1 (0.16%) MiFID
5 1 (0.16%) PCI DSS
5 1 (0.16%) PMO
5 1 (0.16%) Sarbanes-Oxley
5 1 (0.16%) SLA
System Software
1 4 (0.63%) Active Directory
2 2 (0.32%) Docker
3 1 (0.16%) HDFS
3 1 (0.16%) Oracle RAC
3 1 (0.16%) Virtual Machines
3 1 (0.16%) VMware Infrastructure
Systems Management
1 28 (4.42%) Ansible
2 27 (4.26%) Opscode Chef
3 25 (3.94%) Puppet
4 3 (0.47%) Oracle RMAN
5 2 (0.32%) Mesos
5 2 (0.32%) Oozie
6 1 (0.16%) Hadoop YARN
6 1 (0.16%) yum
Vendors
1 118 (18.61%) Oracle
2 58 (9.15%) SAP
3 50 (7.89%) Microsoft
4 26 (4.10%) hybris
5 23 (3.63%) Teradata
6 18 (2.84%) Informatica
7 17 (2.68%) Salesforce.com
7 17 (2.68%) Sybase
8 16 (2.52%) Cloudera
9 14 (2.21%) MapR
10 12 (1.89%) Netezza
10 12 (1.89%) Splunk
11 11 (1.74%) IBM
11 11 (1.74%) Nuix
11 11 (1.74%) Tableau
12 7 (1.10%) ServiceNow
13 6 (0.95%) Red Hat
13 6 (0.95%) TIBCO
14 5 (0.79%) Cognos
14 5 (0.79%) Sage
Staines, Middlesex
Lorien Resourcing
Posted: 3 hours ago
City, London
Venturi
Rate: £1 per day
Posted: Yesterday
Leeds, West Yorkshire
The Bridge Ltd
Rate: From £30,000 to £45,000 per annum + Great Benefits
Posted: 4 days ago
London
Cititec
Rate: £650 - £750 per day
Posted: Yesterday
Middlesex
Sopra Steria Recruitment
Rate: Attractive Day Rate
Posted: Yesterday
London
Client Server
Rate: £500 - £550 per day
Posted: 4 days ago
London
Spring Technology
Posted: Yesterday
London
McGregor Boyall
Rate: £600 - £700 per day
Posted: 4 days ago
London
Spring Technology
Posted: 2 days ago
South East London
Avance Consulting
Posted: 5 days ago
London
Avance Consulting
Posted: 6 days ago
London
Client Server
Rate: £500 - £550 per day
Posted: 11 days ago
London
OHO Group Ltd.
Rate: £500 - £750 per day
Posted: 14 days ago
Cambridge
People Source Consulting
Rate: £200 - £250 per day
Posted: 21 days ago