Period
to 1 April 2020

The table below looks at the prevalence of the term Data Structures in contract job vacancies advertised in England. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Data Structures over the 6 months to 1 April 2020 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 > England
6 months to
1 Apr 2020
Same period 2019 Same period 2018
Rank 271 293 326
Rank change year-on-year +22 +33 +21
Contract jobs citing Data Structures 499 801 734
As % of all contract jobs advertised in England 0.89% 0.91% 0.79%
As % of the Miscellaneous category 2.77% 2.83% 2.40%
Number of daily rates quoted 315 542 510
Median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +6.95%
10th Percentile £363 £369 £350
90th Percentile £725 £713 £675
UK median daily rate £520 £500 £480
% change year-on-year +4.00% +4.17% +3.78%
Number of hourly rates quoted 12 3 16
Median hourly rate £37.50 £39.50 £55.00
Median hourly rate % change year-on-year -5.06% -28.18% +69.23%
10th Percentile £27.48 £24.75 £20.00
90th Percentile £73.75 £63.05 £80.73
UK median hourly rate £35.00 £39.50 £55.00
% change year-on-year -11.39% -28.18% +69.23%

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 advertised in England with a requirement for generic IT skills.

All Generic IT Skills
England
Contract vacancies with a requirement for generic IT skills 18,013 28,311 30,574
As % of all contract IT jobs advertised in England 32.20% 32.14% 32.82%
Number of daily rates quoted 11,368 18,555 20,244
Median daily rate £475 £475 £463
Median daily rate % change year-on-year - +2.70% +5.11%
10th Percentile £250 £281 £265
90th Percentile £675 £675 £663
UK median daily rate £470 £475 £450
% change year-on-year -1.05% +5.56% +5.88%
Number of hourly rates quoted 853 903 944
Median hourly rate £24.70 £21.00 £21.79
Median hourly rate % change year-on-year +17.62% -3.60% +8.93%
10th Percentile £12.50 £11.88 £11.80
90th Percentile £52.50 £50.00 £50.00
Median hourly rate £25.50 £21.00 £21.70
% change year-on-year +21.43% -3.23% +9.85%

Data Structures
Job Vacancy Trend in England

Job postings citing Data Structures as a proportion of all IT jobs advertised in England.

Job vacancy trend for Data Structures in England

Data Structures
Contractor Daily Rate Trend in England

3-month moving average daily rate quoted in jobs citing Data Structures in England.

Daily rate trend for Data Structures in England

Data Structures
Daily Rate Histogram in England

Daily rate distribution for jobs citing Data Structures in England over the 6 months to 1 April 2020.

Daily rate histogram for Data Structures in England

Data Structures
Contractor Hourly Rate Trend in England

3-month moving average hourly rates quoted in jobs citing Data Structures in England.

Hourly rate trend for Data Structures in England

Data Structures
Hourly Rate Histogram in England

Hourly rate distribution of jobs citing Data Structures in England over the 6 months to 1 April 2020.

Hourly rate histogram for Data Structures in England

Data Structures
Contract Job Locations in England

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 England region over the 6 months to 1 April 2020. 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
London +16 305 £550 -4.35% 142
South East +68 84 £500 +5.26% 20
North of England +61 50 £500 +17.71% 22
East of England +32 33 £425 -2.86% 15
North West +44 23 £500 +29.03% 17
Yorkshire +39 19 £600 +41.18% 4
South West +25 15 £440 -7.37% 14
Midlands +26 10 £366 -11.02% 10
North East +26 9 £1,300 +188.89% 1
West Midlands +30 6 £513 +26.15% 3
East Midlands +19 4 £278 -32.32% 7
Data Structures
UK

For the 6 months to 1 April 2020, 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 across the England region with a requirement for Data Structures.

1 191 (38.28%) SQL
2 189 (37.88%) Agile Software Development
3 138 (27.66%) Java
4 134 (26.85%) Finance
5 119 (23.85%) OO
5 119 (23.85%) Analytics
6 113 (22.65%) Algorithms
7 111 (22.24%) Analytical Skills
7 111 (22.24%) JavaScript
8 109 (21.84%) Python
9 105 (21.04%) Business Intelligence
10 94 (18.84%) Problem-Solving
11 93 (18.64%) AWS
12 90 (18.04%) Data Modelling
13 89 (17.84%) Computer Science
14 86 (17.23%) Azure
15 80 (16.03%) ETL
16 79 (15.83%) Oracle
17 77 (15.43%) SQL Server
18 73 (14.63%) Visualisation
19 70 (14.03%) Data Warehouse
20 68 (13.63%) Test Automation
20 68 (13.63%) Multithreading
21 66 (13.23%) Microsoft
21 66 (13.23%) User Experience
22 65 (13.03%) Linux
23 64 (12.83%) Security Cleared
23 64 (12.83%) NoSQL
24 58 (11.62%) TDD
24 58 (11.62%) HTML

Data Structures
Co-occurring IT Skills in England 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 39 (7.82%) Apache Spark
2 18 (3.61%) WebLogic
3 15 (3.01%) Apache
4 11 (2.20%) Tomcat
5 10 (2.00%) Apache Airflow
6 9 (1.80%) Confluence
6 9 (1.80%) SharePoint
7 8 (1.60%) WebSphere
8 7 (1.40%) Cloud Foundry
8 7 (1.40%) CMS
8 7 (1.40%) Elasticsearch
9 6 (1.20%) EPiServer
10 5 (1.00%) BizTalk Server
10 5 (1.00%) IBM Notes
10 5 (1.00%) Luigi
10 5 (1.00%) SAS
11 2 (0.40%) Jupyter
12 1 (0.20%) Drupal
12 1 (0.20%) NetWeaver
12 1 (0.20%) SugarCRM
Applications
1 27 (5.41%) Microsoft Excel
2 13 (2.61%) Microsoft Office
3 9 (1.80%) InVision
4 7 (1.40%) Sketch
4 7 (1.40%) Zeplin
5 3 (0.60%) Microsoft PowerPoint
6 2 (0.40%) MS Visio
6 2 (0.40%) Spreadsheet
6 2 (0.40%) SPSS
6 2 (0.40%) Stata
Business Applications
1 10 (2.00%) Oracle Applications
2 8 (1.60%) Dynamics CRM
3 5 (1.00%) Dynamics AX
4 2 (0.40%) ContrOCC
4 2 (0.40%) Maximo
4 2 (0.40%) Oracle EBS
4 2 (0.40%) Oracle Financials
4 2 (0.40%) SAP HR
5 1 (0.20%) FINCAD Analytics
5 1 (0.20%) Infor M3
5 1 (0.20%) ION MarketView
5 1 (0.20%) NetSuite
5 1 (0.20%) Oracle Cash Management
5 1 (0.20%) Oracle Payables
5 1 (0.20%) Oracle Receivables
5 1 (0.20%) Oracle Retail
5 1 (0.20%) SAP BPC
5 1 (0.20%) SAP MDM
5 1 (0.20%) SAP S/4HANA
5 1 (0.20%) Teamcenter
Cloud Services
1 93 (18.64%) AWS
2 86 (17.23%) Azure
3 50 (10.02%) GCP
4 41 (8.22%) Power Platform
5 29 (5.81%) Amazon S3
6 22 (4.41%) Amazon EC2
7 18 (3.61%) GitHub
8 17 (3.41%) Heroku
9 15 (3.01%) Amazon EMR
10 10 (2.00%) AWS Lambda
10 10 (2.00%) Serverless
11 8 (1.60%) Amazon Kinesis
12 6 (1.20%) Amazon Glacier
12 6 (1.20%) Amazon SQS
13 5 (1.00%) Dynamics 365
14 4 (0.80%) Amazon ECS
14 4 (0.80%) AWS CloudFormation
14 4 (0.80%) Cloud Computing
14 4 (0.80%) PowerApps
15 3 (0.60%) Azure Data Factory
Communications & Networking
1 19 (3.81%) HTTP
2 5 (1.00%) DKIM
3 3 (0.60%) Multicast
3 3 (0.60%) TCP/IP
4 2 (0.40%) Intranet
4 2 (0.40%) Q.931
5 1 (0.20%) ATM
5 1 (0.20%) Cisco ASA
5 1 (0.20%) Cisco Nexus
5 1 (0.20%) DPNSS
5 1 (0.20%) Ethernet
5 1 (0.20%) Firewall
5 1 (0.20%) ISDN
5 1 (0.20%) Kerberos
5 1 (0.20%) NAS
5 1 (0.20%) QSIG
5 1 (0.20%) Skype
5 1 (0.20%) xDSL
Database & Business Intelligence
1 77 (15.43%) SQL Server
2 70 (14.03%) Data Warehouse
3 64 (12.83%) NoSQL
4 49 (9.82%) Relational Database
5 45 (9.02%) Big Data
6 39 (7.82%) Power BI
7 30 (6.01%) Hadoop
8 25 (5.01%) SQL Server Integration Services
9 23 (4.61%) Azure SQL Database
9 23 (4.61%) MongoDB
10 22 (4.41%) Amazon Redshift
11 20 (4.01%) Oracle Database
12 19 (3.81%) Data Lake
13 18 (3.61%) Apache Cassandra
13 18 (3.61%) MySQL
14 17 (3.41%) BigQuery
14 17 (3.41%) PostgreSQL
15 13 (2.61%) Oracle Database 12c
15 13 (2.61%) Oracle ODI
16 12 (2.40%) RDBMS
Development Applications
1 55 (11.02%) Git (software)
2 38 (7.62%) Jenkins
3 22 (4.41%) JIRA
3 22 (4.41%) JUnit
4 20 (4.01%) Maven
5 19 (3.81%) webpack
6 12 (2.40%) Ant
6 12 (2.40%) GitLab
6 12 (2.40%) Subversion
7 11 (2.20%) Bitbucket
8 10 (2.00%) Oracle APEX
9 8 (1.60%) git-flow
9 8 (1.60%) Gradle
9 8 (1.60%) JMeter
9 8 (1.60%) Mockito
10 7 (1.40%) Visual Studio
11 6 (1.20%) Axure RP
11 6 (1.20%) ERwin
11 6 (1.20%) TestNG
12 5 (1.00%) Sonatype Nexus
General
1 134 (26.85%) Finance
2 57 (11.42%) Banking
3 47 (9.42%) Public Sector
4 45 (9.02%) Front Office
5 19 (3.81%) Manufacturing
6 14 (2.81%) Publishing
7 13 (2.61%) Games
7 13 (2.61%) Investment Banking
7 13 (2.61%) Marketing
8 12 (2.40%) Legal
9 11 (2.20%) Telecoms
10 9 (1.80%) Electronics
10 9 (1.80%) Local Government
11 6 (1.20%) Retail
12 3 (0.60%) Back Office
12 3 (0.60%) Financial Institution
13 2 (0.40%) Retail Banking
14 1 (0.20%) Dutch Language
14 1 (0.20%) Law
14 1 (0.20%) Multimedia
Job Titles
1 215 (43.09%) Developer
2 73 (14.63%) Senior Developer
3 60 (12.02%) Java Developer
4 58 (11.62%) Analyst
5 50 (10.02%) Data Engineer
6 30 (6.01%) Architect
6 30 (6.01%) Digital Developer
6 30 (6.01%) Senior Java Developer
7 28 (5.61%) Data Analyst
8 24 (4.81%) Business Analyst
9 20 (4.01%) Consultant
9 20 (4.01%) React Developer
10 17 (3.41%) Python Developer
10 17 (3.41%) SQL Developer
11 16 (3.21%) AWS Engineer
12 15 (3.01%) Senior React Developer
13 14 (2.81%) Node.js Developer
14 12 (2.40%) Java Engineer
14 12 (2.40%) Oracle Developer
14 12 (2.40%) Python Engineer
Libraries, Frameworks & Software Standards
1 58 (11.62%) HTML
2 54 (10.82%) CSS
3 50 (10.02%) Web Services
4 44 (8.82%) HTML5
5 36 (7.21%) REST
6 31 (6.21%) Kafka
7 28 (5.61%) JSON
8 26 (5.21%) React
9 25 (5.01%) Spring
10 23 (4.61%) .NET
10 23 (4.61%) Redux
11 22 (4.41%) Node.js
12 19 (3.81%) AngularJS
12 19 (3.81%) Jest
13 18 (3.61%) XML
14 17 (3.41%) GraphQL
14 17 (3.41%) RESTful
14 17 (3.41%) SOAP
15 16 (3.21%) FIX Protocol
16 15 (3.01%) D3.js
Miscellaneous
1 113 (22.65%) Algorithms
2 111 (22.24%) Analytical Skills
3 66 (13.23%) User Experience
4 30 (6.01%) Foreign Exchange (FX)
5 26 (5.21%) Management Information System
6 18 (3.61%) Enterprise Software
7 16 (3.21%) Equities
8 12 (2.40%) Fixed Income
9 11 (2.20%) Derivative
9 11 (2.20%) Self-Motivation
10 9 (1.80%) Mobile App
11 8 (1.60%) Data Protection Act
11 8 (1.60%) Mobile Payment
12 6 (1.20%) Grid Computing
12 6 (1.20%) NHS
13 5 (1.00%) Cloud Native
13 5 (1.00%) Reference Data
14 4 (0.80%) CMDB
14 4 (0.80%) Mobile Games
14 4 (0.80%) Pricing Data
Operating Systems
1 65 (13.03%) Linux
2 22 (4.41%) Unix
2 22 (4.41%) Windows
3 13 (2.61%) Oracle Linux
4 9 (1.80%) Android
5 7 (1.40%) Apple iOS
6 2 (0.40%) Windows Server 2008
6 2 (0.40%) Windows Server 2012
7 1 (0.20%) CentOS
7 1 (0.20%) DC/OS
7 1 (0.20%) Red Hat Enterprise Linux
7 1 (0.20%) Ubuntu
7 1 (0.20%) Windows Server
Processes & Methodologies
1 189 (37.88%) Agile Software Development
2 119 (23.85%) Analytics
2 119 (23.85%) OO
3 105 (21.04%) Business Intelligence
4 94 (18.84%) Problem-Solving
5 90 (18.04%) Data Modelling
6 89 (17.84%) Computer Science
7 80 (16.03%) ETL
8 73 (14.63%) Visualisation
9 68 (13.63%) Multithreading
9 68 (13.63%) Test Automation
10 58 (11.62%) TDD
11 49 (9.82%) OOD
12 47 (9.42%) Migration
13 43 (8.62%) Continuous Integration
14 42 (8.42%) Data Science
15 37 (7.41%) Data Integration
15 37 (7.41%) Open Source
16 36 (7.21%) Data Analytics
16 36 (7.21%) Multithreaded Programming
Programming Languages
1 191 (38.28%) SQL
2 138 (27.66%) Java
3 111 (22.24%) JavaScript
4 109 (21.84%) Python
5 49 (9.82%) C#
6 34 (6.81%) Scala
7 25 (5.01%) C++
8 21 (4.21%) TypeScript
9 19 (3.81%) Kotlin
10 18 (3.61%) ES6
11 17 (3.41%) Java 8
12 15 (3.01%) Go
12 15 (3.01%) PL/SQL
13 10 (2.00%) PowerShell
14 9 (1.80%) T-SQL
15 7 (1.40%) Clojure
15 7 (1.40%) Groovy
15 7 (1.40%) R
16 6 (1.20%) Haskell
17 5 (1.00%) PHP
Qualifications
1 64 (12.83%) Security Cleared
2 54 (10.82%) SC Cleared
3 44 (8.82%) Degree
4 22 (4.41%) Computer Science Degree
5 13 (2.61%) ISEB
6 11 (2.20%) CISM
7 6 (1.20%) BPSS Clearance
7 6 (1.20%) Master's Degree
8 5 (1.00%) ISTQB
8 5 (1.00%) Numerate Degree
8 5 (1.00%) PhD
9 2 (0.40%) DBS Check
9 2 (0.40%) HNC
9 2 (0.40%) ISEB Practitioner
9 2 (0.40%) Microsoft Certification
10 1 (0.20%) CTC Cleared
10 1 (0.20%) DV Cleared
10 1 (0.20%) ITIL Certification
10 1 (0.20%) SAP Certification
10 1 (0.20%) TOGAF Certification
Quality Assurance & Compliance
1 30 (6.01%) Data Quality
2 16 (3.21%) GDPR
3 13 (2.61%) QA
4 11 (2.20%) COBIT
5 6 (1.20%) Sarbanes-Oxley
6 5 (1.00%) PMO
7 3 (0.60%) SLA
8 2 (0.40%) Disclosure Scotland
9 1 (0.20%) IFRS
9 1 (0.20%) MiFID
9 1 (0.20%) WCAG
System Software
1 34 (6.81%) Docker
2 6 (1.20%) HDFS
3 1 (0.20%) Active Directory
3 1 (0.20%) DFS Replication
3 1 (0.20%) Oracle Clusterware
3 1 (0.20%) Oracle RAC
Systems Management
1 31 (6.21%) Kubernetes
2 20 (4.01%) Terraform
3 2 (0.40%) Ansible
3 2 (0.40%) Opscode Chef
4 1 (0.20%) Apache Brooklyn
4 1 (0.20%) Control-M
4 1 (0.20%) Data Guard
4 1 (0.20%) Galera Cluster
4 1 (0.20%) HAProxy
4 1 (0.20%) Kibana
4 1 (0.20%) Marathon
4 1 (0.20%) Mesos
4 1 (0.20%) Oracle Flashback
4 1 (0.20%) Oracle RMAN
4 1 (0.20%) Puppet
4 1 (0.20%) SCCM
4 1 (0.20%) Tivoli
Vendors
1 79 (15.83%) Oracle
2 66 (13.23%) Microsoft
3 36 (7.21%) SAP
4 27 (5.41%) Tableau
5 25 (5.01%) Talend
6 21 (4.21%) Google
7 18 (3.61%) Informatica
8 14 (2.81%) Databricks
9 10 (2.00%) Ab Initio
9 10 (2.00%) Salesforce.com
10 7 (1.40%) hybris
10 7 (1.40%) Teradata
11 6 (1.20%) Adobe
11 6 (1.20%) Cognos
11 6 (1.20%) TIBCO
12 5 (1.00%) Charles River
12 5 (1.00%) Lotus
12 5 (1.00%) MicroStrategy
12 5 (1.00%) Sybase
13 4 (0.80%) Splunk