Period
to 21 July 2018

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 6 months to 21 July 2018 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
6 months to
21 Jul 2018
Same period 2017 Same period 2016
Rank 335 313 423
Rank change year-on-year -22 +110 -17
Contract jobs citing Data Structures 790 775 612
As % of all contract IT jobs advertised in the UK 0.76% 0.81% 0.56%
As % of the Miscellaneous category 2.23% 2.36% 1.63%
Number of daily rates quoted 507 536 413
UK median daily rate £500 £441 £425
Median daily rate % change year-on-year +13.31% +3.82% -
10th Percentile £356 £332 £263
90th Percentile £650 £650 £663
UK excluding London median daily rate £450 £413 £400
% change year-on-year +9.09% +3.13% +6.67%
Number of hourly rates quoted 10 6 18
UK median hourly rate £35.75 £33.75 £35.00
Median hourly rate % change year-on-year +5.93% -3.57% +75.00%
10th Percentile £18.00 £25.00 £11.95
90th Percentile £73.32 £37.50 £47.15
UK excluding London median hourly rate £44.75 £33.75 £35.00
% change year-on-year +32.59% -3.57% +75.00%

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

All Generic IT Skills
UK
Contract vacancies with a requirement for generic IT skills 35,374 32,809 37,529
As % of all contract IT jobs advertised in the UK 33.96% 34.19% 34.10%
Number of daily rates quoted 22,998 21,317 24,548
UK median daily rate £463 £450 £425
Median daily rate % change year-on-year +2.78% +5.88% +6.25%
10th Percentile £275 £263 £255
90th Percentile £656 £638 £625
UK excluding London median daily rate £413 £400 £385
% change year-on-year +3.13% +3.90% +2.67%
Number of hourly rates quoted 1,119 1,115 1,231
UK median hourly rate £22.50 £20.00 £21.00
Median hourly rate % change year-on-year +12.50% -4.76% +16.67%
10th Percentile £12.00 £11.25 £11.38
90th Percentile £52.50 £50.00 £47.83
UK excluding London median hourly rate £22.50 £19.00 £21.00
% change year-on-year +18.42% -9.52% +20.00%

Data Structures
Job Vacancy Trend

Job postings citing Data Structures as a percentage of all IT jobs advertised.

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 6 months to 21 July 2018.

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
Contractor Hourly Rate Histogram

The hourly rate distribution of IT jobs citing Data Structures over the 6 months to 21 July 2018.

Contractor hourly rate histogram for Data Structures in the UK

Data Structures
Top 16 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 6 months to 21 July 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -18 710 £500 +8.46% 238
London -12 468 £550 +15.79% 144
UK excluding London -29 311 £450 +9.09% 103
South East +18 97 £450 +5.88% 27
North of England -43 50 £400 - 22
Midlands -11 38 £380 -10.59% 12
East of England +7 36 £525 +42.86% 13
Northern Ireland +1 34 £475 +15.15% 3
Scotland -46 31 £413 -1.49% 5
North West -14 29 £370 -10.30% 10
East Midlands +11 23 £380 -10.59% 6
Yorkshire -37 19 £400 - 10
South West +8 18 £449 -5.53% 20
West Midlands -34 14 £375 -8.54% 6
Wales -7 9 £450 -10.00% 1
North East -7 2 £225 -25.00% 2

For the 6 months to 21 July 2018, IT contractor jobs citing Data Structures also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads with a requirement for Data Structures.

1 310 (39.24%) Agile Software Development
2 274 (34.68%) Algorithms
3 251 (31.77%) Finance
4 249 (31.52%) SQL
5 233 (29.49%) Java
6 220 (27.85%) OO
7 162 (20.51%) Python
8 157 (19.87%) JavaScript
9 144 (18.23%) Computer Science
10 134 (16.96%) Analytical Skills
10 134 (16.96%) Problem-Solving
11 130 (16.46%) Amazon AWS
12 114 (14.43%) Data Modelling
12 114 (14.43%) Git (software)
13 113 (14.30%) HTML
14 111 (14.05%) Banking
15 107 (13.54%) CSS
16 105 (13.29%) TDD
17 103 (13.04%) Multithreading
18 100 (12.66%) Business Intelligence
19 99 (12.53%) Continuous Integration
20 97 (12.28%) Test Automation
20 97 (12.28%) Degree
21 96 (12.15%) Analytics
22 94 (11.90%) SQL Server
23 92 (11.65%) Linux
24 90 (11.39%) Unix
24 90 (11.39%) C#
25 87 (11.01%) Data Warehouse
25 87 (11.01%) Microsoft

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 44 (5.57%) Apache Spark
2 28 (3.54%) SAS
2 28 (3.54%) SharePoint
3 24 (3.04%) Apache
4 21 (2.66%) Apache Pig
5 19 (2.41%) Tomcat
6 16 (2.03%) Confluence
7 15 (1.90%) Elasticsearch
8 7 (0.89%) CMS
9 6 (0.76%) Cloud Foundry
9 6 (0.76%) MS Exchange
10 5 (0.63%) Apache Solr
11 4 (0.51%) Ethereum
11 4 (0.51%) WebSphere
12 3 (0.38%) JBoss
12 3 (0.38%) Oracle SOA Suite
13 2 (0.25%) WebLogic
14 1 (0.13%) Hyperledger
14 1 (0.13%) Jetty
14 1 (0.13%) MQSeries
Applications
1 34 (4.30%) Microsoft Excel
2 11 (1.39%) Microsoft Project
3 8 (1.01%) MS Visio
4 5 (0.63%) Microsoft Office
5 4 (0.51%) InVision
6 2 (0.25%) Adobe Illustrator
6 2 (0.25%) Microsoft PowerPoint
6 2 (0.25%) Photoshop
6 2 (0.25%) S-PLUS
7 1 (0.13%) AutoCAD
7 1 (0.13%) Revit
7 1 (0.13%) Spreadsheet
Business Applications
1 9 (1.14%) SAP ERP
2 6 (0.76%) Markit EDM
3 4 (0.51%) Distributed Ledger
3 4 (0.51%) Salesforce.com CRM
3 4 (0.51%) SAP APO
3 4 (0.51%) SAP EWM
3 4 (0.51%) SAP MDM
3 4 (0.51%) SAP MM
3 4 (0.51%) SAP WM
4 3 (0.38%) Dynamics CRM
4 3 (0.38%) Dynamics NAV
4 3 (0.38%) Oracle Assets
4 3 (0.38%) SAP MDG
5 2 (0.25%) Cognos TM1
5 2 (0.25%) Dynamics AX
5 2 (0.25%) HiPortfolio
5 2 (0.25%) Infor M3
5 2 (0.25%) NetSuite
5 2 (0.25%) Oracle Financials
5 2 (0.25%) Oracle Payables
Cloud Services
1 130 (16.46%) Amazon AWS
2 54 (6.84%) Microsoft Azure
3 48 (6.08%) GitHub
4 27 (3.42%) npm
5 26 (3.29%) Heroku
6 25 (3.16%) Amazon S3
7 20 (2.53%) Amazon EC2
7 20 (2.53%) Google Cloud Platform
8 17 (2.15%) SaaS
9 14 (1.77%) Google Analytics
10 11 (1.39%) PaaS
11 10 (1.27%) Cloud Computing
12 8 (1.01%) Office 365
13 6 (0.76%) AWS Elastic Beanstalk
13 6 (0.76%) OpenShift
13 6 (0.76%) Yarn
14 5 (0.63%) Amazon Kinesis
14 5 (0.63%) BrowserStack
14 5 (0.63%) Sauce Labs
15 3 (0.38%) Amazon Glacier
Communications & Networking
1 22 (2.78%) TCP/IP
2 12 (1.52%) Firewall
3 10 (1.27%) HTTP
3 10 (1.27%) Internet
4 8 (1.01%) Kerberos
5 7 (0.89%) SAN
6 6 (0.76%) AMQP
6 6 (0.76%) MQTT
6 6 (0.76%) VoIP
7 5 (0.63%) HTTPS
7 5 (0.63%) Reverse Proxy
8 3 (0.38%) FTP
8 3 (0.38%) RFID
9 2 (0.25%) DMZ
9 2 (0.25%) Intrusion Detection
9 2 (0.25%) IPFS
9 2 (0.25%) SMS
9 2 (0.25%) SSL
9 2 (0.25%) VPN
10 1 (0.13%) Intranet
Database & Business Intelligence
1 94 (11.90%) SQL Server
2 87 (11.01%) Data Warehouse
3 76 (9.62%) Relational Database
4 71 (8.99%) Hadoop
5 69 (8.73%) Big Data
6 55 (6.96%) NoSQL
7 46 (5.82%) Apache Hive
8 45 (5.70%) PostgreSQL
8 45 (5.70%) Power BI
9 43 (5.44%) MongoDB
10 36 (4.56%) SQL Server Integration Services
11 28 (3.54%) MySQL
12 21 (2.66%) BusinessObjects
12 21 (2.66%) SQL Server Reporting Services
13 20 (2.53%) Amazon Redshift
13 20 (2.53%) Data Mining
13 20 (2.53%) SQL Server Analysis Services
14 17 (2.15%) Oracle Database
15 16 (2.03%) DB2
16 15 (1.90%) Qlik Sense
Development Applications
1 114 (14.43%) Git (software)
2 60 (7.59%) webpack
3 57 (7.22%) Jenkins
3 57 (7.22%) JIRA
4 46 (5.82%) Subversion
5 33 (4.18%) JUnit
6 27 (3.42%) Jasmine
7 26 (3.29%) PostCSS
8 21 (2.66%) gulp
9 20 (2.53%) Grunt
10 19 (2.41%) Selenium
11 18 (2.28%) TeamCity
12 16 (2.03%) Maven
13 15 (1.90%) Atlassian Bamboo
13 15 (1.90%) PhantomJS
14 14 (1.77%) Hudson
15 13 (1.65%) Bitbucket
15 13 (1.65%) Cucumber
16 12 (1.52%) Visual Studio
17 8 (1.01%) Gradle
General
1 251 (31.77%) Finance
2 111 (14.05%) Banking
3 55 (6.96%) Front Office
4 24 (3.04%) Games
5 22 (2.78%) Investment Banking
6 20 (2.53%) Retail
7 15 (1.90%) Manufacturing
7 15 (1.90%) Telecoms
8 12 (1.52%) Legal
8 12 (1.52%) Marketing
9 10 (1.27%) Back Office
10 9 (1.14%) Pharmaceutical
11 7 (0.89%) Electronics
12 6 (0.76%) Financial Institution
13 5 (0.63%) Retail Banking
14 4 (0.51%) Billing
14 4 (0.51%) Local Government
15 2 (0.25%) Advertising
15 2 (0.25%) General Ledger
15 2 (0.25%) Private Banking
Job Titles
1 434 (54.94%) Developer
2 123 (15.57%) Java Developer
3 107 (13.54%) Analyst
4 57 (7.22%) Senior Developer
5 53 (6.71%) Architect
6 51 (6.46%) Python Developer
7 45 (5.70%) React Developer
8 44 (5.57%) Data Engineer
9 40 (5.06%) Front End Developer (Client-Side Developer)
10 33 (4.18%) Business Analyst
10 33 (4.18%) Data Analyst
11 30 (3.80%) JavaScript Developer
12 29 (3.67%) C# Developer
13 26 (3.29%) Python Engineer
14 25 (3.16%) AWS Engineer
15 24 (3.04%) SQL Developer
16 23 (2.91%) Data Architect
16 23 (2.91%) Front Office Developer
17 22 (2.78%) Business Intelligence Developer
17 22 (2.78%) Digital Developer
Libraries, Frameworks & Software Standards
1 113 (14.30%) HTML
2 107 (13.54%) CSS
3 84 (10.63%) Redux
4 77 (9.75%) AngularJS
5 69 (8.73%) Web Services
6 68 (8.61%) Spring
7 59 (7.47%) React
8 58 (7.34%) REST
8 58 (7.34%) XML
9 53 (6.71%) Kafka
9 53 (6.71%) Node.js
10 52 (6.58%) JSON
11 51 (6.46%) HTML5
11 51 (6.46%) RESTful
12 42 (5.32%) .NET
13 38 (4.81%) jQuery
14 35 (4.43%) Chai
15 28 (3.54%) Sass
15 28 (3.54%) SOAP
16 26 (3.29%) Enzyme
Miscellaneous
1 274 (34.68%) Algorithms
2 144 (18.23%) Computer Science
3 134 (16.96%) Analytical Skills
4 66 (8.35%) User Experience
5 34 (4.30%) Greenfield Project
6 32 (4.05%) Mobile App
7 31 (3.92%) Management Information System
8 26 (3.29%) Data Centre
9 25 (3.16%) Fintech
10 24 (3.04%) Foreign Exchange (FX)
11 20 (2.53%) Equities
12 18 (2.28%) Self-Motivation
13 17 (2.15%) Derivative
13 17 (2.15%) Fixed Income
14 16 (2.03%) Hedge funds
15 11 (1.39%) Reference Data
16 9 (1.14%) Blog
17 8 (1.01%) Enterprise Software
18 7 (0.89%) Credit Risk
19 6 (0.76%) Market Risk
Operating Systems
1 92 (11.65%) Linux
2 90 (11.39%) Unix
3 34 (4.30%) Windows
4 25 (3.16%) Apple iOS
5 20 (2.53%) Android
6 8 (1.01%) Windows Server
7 3 (0.38%) CentOS
7 3 (0.38%) Windows 7
8 2 (0.25%) Mac OS
8 2 (0.25%) Solaris
8 2 (0.25%) SUSE Linux Enterprise Server
8 2 (0.25%) VME
8 2 (0.25%) Windows 8
9 1 (0.13%) DC/OS
Processes & Methodologies
1 310 (39.24%) Agile Software Development
2 220 (27.85%) OO
3 134 (16.96%) Problem-Solving
4 114 (14.43%) Data Modelling
5 105 (13.29%) TDD
6 103 (13.04%) Multithreading
7 100 (12.66%) Business Intelligence
8 99 (12.53%) Continuous Integration
9 97 (12.28%) Test Automation
10 96 (12.15%) Analytics
11 86 (10.89%) ETL
12 83 (10.51%) OOD
13 71 (8.99%) Migration
14 70 (8.86%) DevOps
15 67 (8.48%) OOP
16 66 (8.35%) Machine Learning
17 62 (7.85%) Scrum
18 61 (7.72%) Data Science
18 61 (7.72%) Software Engineering
19 58 (7.34%) Data Analysis
Programming Languages
1 249 (31.52%) SQL
2 233 (29.49%) Java
3 162 (20.51%) Python
4 157 (19.87%) JavaScript
5 90 (11.39%) C#
6 59 (7.47%) Scala
7 56 (7.09%) ES6
8 52 (6.58%) C++
9 34 (4.30%) T-SQL
10 29 (3.67%) Java 8
11 28 (3.54%) Go
12 23 (2.91%) R
13 21 (2.66%) Perl
13 21 (2.66%) TypeScript
14 19 (2.41%) Shell Script
14 19 (2.41%) VBA
15 18 (2.28%) C
16 16 (2.03%) PL/SQL
17 14 (1.77%) Objective-C
18 12 (1.52%) PowerShell
Qualifications
1 97 (12.28%) Degree
2 41 (5.19%) Computer Science Degree
3 32 (4.05%) Security Cleared
4 19 (2.41%) SC Cleared
5 13 (1.65%) Master's Degree
6 11 (1.39%) CISSP
7 10 (1.27%) Numerate Degree
8 8 (1.01%) MCSE
8 8 (1.01%) Microsoft Certification
9 5 (0.63%) DBS Check
9 5 (0.63%) PhD
10 4 (0.51%) A+ Certification
10 4 (0.51%) HNC
10 4 (0.51%) ISTQB
11 3 (0.38%) CTC Cleared
11 3 (0.38%) ISEB
12 2 (0.25%) CISA
12 2 (0.25%) Cisco Certification
12 2 (0.25%) CISM
12 2 (0.25%) SSCP
Quality Assurance & Compliance
1 64 (8.10%) Data Quality
2 26 (3.29%) QA
3 17 (2.15%) GDPR
4 6 (0.76%) IFRS
4 6 (0.76%) IFRS 9
5 5 (0.63%) PMO
6 4 (0.51%) GCP
7 3 (0.38%) Disclosure Scotland
7 3 (0.38%) SLA
8 1 (0.13%) PSD2
System Software
1 62 (7.85%) Docker
2 15 (1.90%) Active Directory
2 15 (1.90%) HDFS
3 12 (1.52%) Apache Flume
4 6 (0.76%) Forefront TMG
4 6 (0.76%) Hyper-V
5 4 (0.51%) Apache ZooKeeper
6 2 (0.25%) etcd
6 2 (0.25%) Varnish
7 1 (0.13%) Virtual Servers
7 1 (0.13%) vSphere
Systems Management
1 27 (3.42%) Opscode Chef
2 26 (3.29%) Kubernetes
3 12 (1.52%) Oozie
4 11 (1.39%) Puppet
5 10 (1.27%) Ansible
6 5 (0.63%) Kibana
7 4 (0.51%) Consul
7 4 (0.51%) CSIRT
7 4 (0.51%) Hadoop YARN
7 4 (0.51%) HP ALM
7 4 (0.51%) Systems Management Server (SMS)
8 2 (0.25%) Ambari
8 2 (0.25%) Docker Swarm
8 2 (0.25%) Terraform
9 1 (0.13%) Host Intrusion Detection System
9 1 (0.13%) Marathon
9 1 (0.13%) Mesos
9 1 (0.13%) Network Intrusion Detection System
9 1 (0.13%) RSA Archer
9 1 (0.13%) RSA Security Analytics
Vendors
1 87 (11.01%) Microsoft
2 76 (9.62%) Oracle
3 46 (5.82%) Google
4 37 (4.68%) SAP
5 26 (3.29%) Salesforce.com
5 26 (3.29%) Tableau
5 26 (3.29%) Twitter
6 16 (2.03%) Cloudera
7 15 (1.90%) IBM
7 15 (1.90%) Teradata
8 13 (1.65%) Sybase
9 11 (1.39%) Atlassian
10 8 (1.01%) HP
11 7 (0.89%) Cognos
11 7 (0.89%) Xamarin
12 6 (0.76%) CA Agile Central
12 6 (0.76%) Hortonworks
12 6 (0.76%) JD Edwards
12 6 (0.76%) RapidMiner
12 6 (0.76%) Talend