Period
to 20 September 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 20 September 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
20 Sep 2018
Same period 2017 Same period 2016
Rank 338 289 408
Rank change year-on-year -49 +119 +16
Contract jobs citing Data Structures 778 867 635
As % of all contract IT jobs advertised in the UK 0.76% 0.88% 0.59%
As % of the Miscellaneous category 2.22% 2.57% 1.71%
Number of daily rates quoted 493 595 439
UK median daily rate £500 £450 £425
Median daily rate % change year-on-year +11.11% +5.88% -5.56%
10th Percentile £357 £361 £263
90th Percentile £675 £650 £638
UK excluding London median daily rate £438 £413 £390
% change year-on-year +6.06% +5.77% +4.00%
Number of hourly rates quoted 8 8 12
UK median hourly rate £37.09 £35.00 £43.50
Median hourly rate % change year-on-year +5.97% -19.54% +2.35%
10th Percentile £20.70 £27.00 £11.35
90th Percentile £55.00 £53.30 £46.99
UK excluding London median hourly rate £44.75 £35.00 £12.50
% change year-on-year +27.86% +180.00% -70.59%

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 35,098 33,751 37,065
As % of all contract IT jobs advertised in the UK 34.09% 34.15% 34.37%
Number of daily rates quoted 22,914 22,048 24,238
UK median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +3.16%
10th Percentile £275 £263 £250
90th Percentile £650 £650 £620
UK excluding London median daily rate £418 £400 £388
% change year-on-year +4.38% +3.23% +3.33%
Number of hourly rates quoted 1,073 1,052 1,251
UK median hourly rate £21.50 £21.00 £20.50
Median hourly rate % change year-on-year +2.38% +2.44% +10.81%
10th Percentile £12.25 £11.25 £11.33
90th Percentile £51.00 £49.45 £46.88
UK excluding London median hourly rate £20.00 £20.00 £20.50
% change year-on-year - -2.44% +17.14%

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 20 September 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 20 September 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 20 September 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 -9 719 £500 +5.26% 272
London -8 470 £533 +2.31% 170
UK excluding London -76 297 £438 +6.06% 121
South East +1 104 £444 +10.94% 18
East of England +28 43 £472 +28.00% 13
North of England -42 41 £373 -12.35% 17
Scotland -45 37 £385 +1.32% 13
Midlands -28 32 £380 -10.59% 20
North West -16 28 £363 -14.71% 11
South West +7 25 £425 +21.43% 34
East Midlands +9 20 £380 -10.59% 6
West Midlands -42 11 £420 -2.44% 14
Yorkshire -44 10 £475 +12.43% 3
Northern Ireland -22 9 £468 +13.33% 5
Wales -14 7 £450 +87.50% 1
North East -7 3 £225 -25.00% 3

For the 6 months to 20 September 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.

1 293 (37.66%) Algorithms
2 290 (37.28%) Agile Software Development
3 252 (32.39%) SQL
4 230 (29.56%) Java
5 222 (28.53%) OO
6 221 (28.41%) Finance
7 197 (25.32%) JavaScript
8 173 (22.24%) Python
9 163 (20.95%) Computer Science
10 140 (17.99%) Git (software)
11 134 (17.22%) TDD
12 133 (17.10%) Analytical Skills
13 131 (16.84%) HTML
14 126 (16.20%) Problem-Solving
15 124 (15.94%) Amazon AWS
16 119 (15.30%) CSS
17 117 (15.04%) Data Modelling
18 110 (14.14%) C#
19 109 (14.01%) SQL Server
20 106 (13.62%) Degree
21 104 (13.37%) OOD
22 98 (12.60%) Business Intelligence
23 96 (12.34%) Microsoft
24 95 (12.21%) Relational Database
25 93 (11.95%) Continuous Integration
26 91 (11.70%) Linux
27 89 (11.44%) Data Warehouse
28 86 (11.05%) Unix
28 86 (11.05%) OOP
28 86 (11.05%) Multithreading

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 46 (5.91%) Apache Spark
2 25 (3.21%) Apache
3 17 (2.19%) SAS
3 17 (2.19%) SharePoint
4 13 (1.67%) Apache Pig
4 13 (1.67%) Elasticsearch
5 12 (1.54%) Confluence
6 10 (1.29%) CMS
7 9 (1.16%) Tomcat
8 6 (0.77%) Cloud Foundry
8 6 (0.77%) MS Exchange
9 5 (0.64%) Apache Solr
10 4 (0.51%) Ethereum
10 4 (0.51%) IIS
11 3 (0.39%) IPython
11 3 (0.39%) JBoss
11 3 (0.39%) Oracle SOA Suite
11 3 (0.39%) WebSphere
12 2 (0.26%) WebLogic
13 1 (0.13%) GemFire
Applications
1 26 (3.34%) Microsoft Excel
2 6 (0.77%) Microsoft Office
3 5 (0.64%) InVision
4 4 (0.51%) MS Visio
4 4 (0.51%) Photoshop
5 3 (0.39%) Adobe Illustrator
5 3 (0.39%) Microsoft PowerPoint
6 2 (0.26%) Microsoft Project
6 2 (0.26%) S-PLUS
7 1 (0.13%) Adobe Creative Suite
7 1 (0.13%) Fireworks
7 1 (0.13%) Spreadsheet
Business Applications
1 9 (1.16%) SAP ERP
2 7 (0.90%) SAP MM
2 7 (0.90%) SAP Oil and Gas
3 6 (0.77%) Infor M3
4 4 (0.51%) Distributed Ledger
4 4 (0.51%) Salesforce.com CRM
4 4 (0.51%) SAP APO
4 4 (0.51%) SAP EWM
4 4 (0.51%) SAP MDM
4 4 (0.51%) SAP S/4HANA
4 4 (0.51%) SAP WM
5 3 (0.39%) Dynamics CRM
5 3 (0.39%) Dynamics NAV
5 3 (0.39%) SAP R/3
6 2 (0.26%) Dynamics AX
6 2 (0.26%) NetSuite
6 2 (0.26%) Oracle Financials
6 2 (0.26%) Oracle Payables
6 2 (0.26%) Remedy ITSM
6 2 (0.26%) SAP Retail
Cloud Services
1 124 (15.94%) Amazon AWS
2 57 (7.33%) Microsoft Azure
3 49 (6.30%) GitHub
4 29 (3.73%) Google Cloud Platform
5 24 (3.08%) Heroku
5 24 (3.08%) npm
6 19 (2.44%) PaaS
7 16 (2.06%) SaaS
8 15 (1.93%) Amazon S3
9 13 (1.67%) Amazon EC2
10 11 (1.41%) Cloud Computing
11 10 (1.29%) IaaS
12 9 (1.16%) OpenShift
13 8 (1.03%) Yarn
14 7 (0.90%) BrowserStack
14 7 (0.90%) Google Analytics
14 7 (0.90%) Sauce Labs
15 6 (0.77%) AWS Elastic Beanstalk
16 4 (0.51%) AdWords
16 4 (0.51%) Amazon Kinesis
Communications & Networking
1 21 (2.70%) TCP/IP
2 19 (2.44%) HTTP
3 14 (1.80%) Firewall
4 13 (1.67%) Internet
5 9 (1.16%) Kerberos
6 8 (1.03%) HTTPS
7 7 (0.90%) SAN
8 6 (0.77%) AMQP
8 6 (0.77%) MQTT
9 5 (0.64%) Intranet
9 5 (0.64%) SMS
9 5 (0.64%) VoIP
10 4 (0.51%) BIG-IP
10 4 (0.51%) NetScaler
11 3 (0.39%) RFID
12 2 (0.26%) DMZ
12 2 (0.26%) DNS
12 2 (0.26%) LAN
12 2 (0.26%) SSL
12 2 (0.26%) VPN
Database & Business Intelligence
1 109 (14.01%) SQL Server
2 95 (12.21%) Relational Database
3 89 (11.44%) Data Warehouse
4 75 (9.64%) Hadoop
5 65 (8.35%) Big Data
6 58 (7.46%) NoSQL
7 49 (6.30%) PostgreSQL
8 46 (5.91%) Apache Hive
9 40 (5.14%) SQL Server Integration Services
10 38 (4.88%) MySQL
11 37 (4.76%) MongoDB
12 33 (4.24%) Power BI
13 28 (3.60%) SQL Server Analysis Services
14 26 (3.34%) SQL Server Reporting Services
15 23 (2.96%) Data Lake
16 22 (2.83%) BusinessObjects
17 21 (2.70%) Apache Cassandra
17 21 (2.70%) OLAP
18 17 (2.19%) SQL Server 2008
19 16 (2.06%) DB2
Development Applications
1 140 (17.99%) Git (software)
2 61 (7.84%) Jenkins
3 49 (6.30%) webpack
4 39 (5.01%) JIRA
5 38 (4.88%) Subversion
6 30 (3.86%) JUnit
7 25 (3.21%) PostCSS
8 23 (2.96%) Selenium
9 19 (2.44%) Jasmine
9 19 (2.44%) Maven
9 19 (2.44%) TeamCity
10 17 (2.19%) Hudson
11 14 (1.80%) Bitbucket
11 14 (1.80%) Cucumber
11 14 (1.80%) Grunt
11 14 (1.80%) gulp
12 13 (1.67%) Atlassian Bamboo
13 12 (1.54%) JMeter
14 11 (1.41%) Visual Studio
15 10 (1.29%) Gerrit
General
1 221 (28.41%) Finance
2 81 (10.41%) Banking
3 51 (6.56%) Front Office
4 32 (4.11%) Telecoms
5 19 (2.44%) Games
5 19 (2.44%) Manufacturing
6 17 (2.19%) Marketing
7 16 (2.06%) Retail
8 12 (1.54%) Investment Banking
8 12 (1.54%) Legal
9 9 (1.16%) Electronics
9 9 (1.16%) Pharmaceutical
10 7 (0.90%) Back Office
11 6 (0.77%) Advertising
12 4 (0.51%) Financial Institution
12 4 (0.51%) General Ledger
12 4 (0.51%) German Language
12 4 (0.51%) Retail Banking
13 3 (0.39%) French Language
14 2 (0.26%) Arabic Language
Job Titles
1 458 (58.87%) Developer
2 114 (14.65%) Java Developer
3 89 (11.44%) Analyst
4 57 (7.33%) Python Developer
5 54 (6.94%) React Developer
6 50 (6.43%) Senior Developer
7 41 (5.27%) Architect
8 39 (5.01%) Front End Developer (Client-Side Developer)
9 38 (4.88%) Data Engineer
10 35 (4.50%) C# Developer
11 32 (4.11%) Data Analyst
12 27 (3.47%) Business Analyst
13 26 (3.34%) JavaScript Developer
14 25 (3.21%) Full Stack Developer
14 25 (3.21%) SQL Developer
15 24 (3.08%) Digital Developer
16 23 (2.96%) Data Architect
17 22 (2.83%) Business Intelligence Developer
17 22 (2.83%) Front Office Developer
17 22 (2.83%) Lead Developer
Libraries, Frameworks & Software Standards
1 131 (16.84%) HTML
2 119 (15.30%) CSS
3 83 (10.67%) Redux
4 76 (9.77%) AngularJS
5 65 (8.35%) Web Services
6 63 (8.10%) HTML5
7 60 (7.71%) React
8 59 (7.58%) .NET
8 59 (7.58%) Node.js
8 59 (7.58%) REST
9 58 (7.46%) Kafka
9 58 (7.46%) RESTful
10 57 (7.33%) XML
11 50 (6.43%) Spring
12 49 (6.30%) jQuery
13 43 (5.53%) JSON
14 36 (4.63%) Chai
15 32 (4.11%) Sass
16 30 (3.86%) SOAP
17 27 (3.47%) CSS3
Miscellaneous
1 293 (37.66%) Algorithms
2 163 (20.95%) Computer Science
3 133 (17.10%) Analytical Skills
4 73 (9.38%) User Experience
5 36 (4.63%) Mobile App
6 31 (3.98%) Greenfield Project
7 29 (3.73%) Data Centre
8 27 (3.47%) Fixed Income
9 26 (3.34%) Management Information System
10 22 (2.83%) Equities
10 22 (2.83%) Hedge funds
10 22 (2.83%) Self-Motivation
11 21 (2.70%) Fintech
12 19 (2.44%) Foreign Exchange (FX)
13 16 (2.06%) Cloud Native
14 14 (1.80%) Derivative
15 10 (1.29%) PKI
16 9 (1.16%) Reference Data
17 8 (1.03%) Blog
17 8 (1.03%) Public Cloud
Operating Systems
1 91 (11.70%) Linux
2 86 (11.05%) Unix
3 36 (4.63%) Apple iOS
4 33 (4.24%) Windows
5 31 (3.98%) Android
6 11 (1.41%) Windows Server
7 4 (0.51%) Red Hat Enterprise Linux
7 4 (0.51%) Windows 7
8 3 (0.39%) CentOS
8 3 (0.39%) Mac OS
8 3 (0.39%) Windows 8
9 2 (0.26%) Mac OS X
9 2 (0.26%) Solaris
9 2 (0.26%) SUSE Linux Enterprise Server
10 1 (0.13%) DC/OS
Processes & Methodologies
1 290 (37.28%) Agile Software Development
2 222 (28.53%) OO
3 134 (17.22%) TDD
4 126 (16.20%) Problem-Solving
5 117 (15.04%) Data Modelling
6 104 (13.37%) OOD
7 98 (12.60%) Business Intelligence
8 93 (11.95%) Continuous Integration
9 86 (11.05%) Multithreading
9 86 (11.05%) OOP
10 83 (10.67%) DevOps
10 83 (10.67%) Test Automation
11 77 (9.90%) Analytics
12 76 (9.77%) ETL
13 72 (9.25%) Scrum
14 70 (9.00%) Migration
15 62 (7.97%) Front End Development
16 61 (7.84%) Machine Learning
17 55 (7.07%) Software Engineering
18 53 (6.81%) Data Science
Programming Languages
1 252 (32.39%) SQL
2 230 (29.56%) Java
3 197 (25.32%) JavaScript
4 173 (22.24%) Python
5 110 (14.14%) C#
6 79 (10.15%) C++
7 68 (8.74%) Scala
8 49 (6.30%) TypeScript
9 48 (6.17%) ES6
10 40 (5.14%) T-SQL
11 33 (4.24%) Go
12 32 (4.11%) Java 8
13 22 (2.83%) Perl
14 20 (2.57%) Apple Swift
14 20 (2.57%) Shell Script
15 17 (2.19%) C
16 16 (2.06%) PHP
17 15 (1.93%) PL/SQL
17 15 (1.93%) Rust
18 14 (1.80%) R
Qualifications
1 106 (13.62%) Degree
2 55 (7.07%) Computer Science Degree
3 32 (4.11%) Security Cleared
4 22 (2.83%) SC Cleared
5 13 (1.67%) Master's Degree
6 7 (0.90%) MCSE
6 7 (0.90%) Microsoft Certification
7 5 (0.64%) DBS Check
7 5 (0.64%) ISTQB
7 5 (0.64%) PhD
8 4 (0.51%) A+ Certification
8 4 (0.51%) CISSP
8 4 (0.51%) HNC
8 4 (0.51%) Numerate Degree
9 3 (0.39%) CTC Cleared
9 3 (0.39%) ISEB
10 2 (0.26%) CISA
10 2 (0.26%) MCSA
10 2 (0.26%) SAS Certification
10 2 (0.26%) SSCP
Quality Assurance & Compliance
1 54 (6.94%) Data Quality
2 32 (4.11%) QA
3 9 (1.16%) GDPR
4 4 (0.51%) GCP
4 4 (0.51%) PMO
5 2 (0.26%) IFRS
6 1 (0.13%) IFRS 9
6 1 (0.13%) SLA
System Software
1 75 (9.64%) Docker
2 19 (2.44%) HDFS
3 15 (1.93%) Active Directory
4 8 (1.03%) Apache Flume
5 6 (0.77%) Forefront TMG
5 6 (0.77%) Hyper-V
6 4 (0.51%) Apache ZooKeeper
6 4 (0.51%) KVM
6 4 (0.51%) LXC
7 2 (0.26%) etcd
7 2 (0.26%) Varnish
8 1 (0.13%) Virtual Servers
Systems Management
1 41 (5.27%) Kubernetes
2 18 (2.31%) Opscode Chef
3 14 (1.80%) Ansible
4 9 (1.16%) Puppet
5 8 (1.03%) Kibana
6 6 (0.77%) Oozie
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%) Prometheus
7 4 (0.51%) Single Sign-On
7 4 (0.51%) Systems Management Server (SMS)
8 3 (0.39%) Grafana
8 3 (0.39%) logstash
9 2 (0.26%) Ambari
9 2 (0.26%) CA Spectrum
9 2 (0.26%) Control-M
9 2 (0.26%) NetBackup
9 2 (0.26%) Tivoli
Vendors
1 96 (12.34%) Microsoft
2 72 (9.25%) Oracle
3 50 (6.43%) SAP
4 49 (6.30%) Google
5 34 (4.37%) Tableau
6 24 (3.08%) Twitter
7 15 (1.93%) Capita
7 15 (1.93%) Cloudera
8 13 (1.67%) IBM
9 12 (1.54%) Salesforce.com
9 12 (1.54%) Teradata
10 11 (1.41%) HP
10 11 (1.41%) Sybase
11 10 (1.29%) Informatica
12 9 (1.16%) EMC
12 9 (1.16%) Isilon
12 9 (1.16%) NetApp
13 8 (1.03%) Cognos
13 8 (1.03%) Red Hat
13 8 (1.03%) Talend