Period
to 3 August 2021

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 3 August 2021 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
3 Aug 2021
Same period 2020 Same period 2019
Rank 221 281 330
Rank change year-on-year +60 +49 +27
Contract jobs citing Data Structures 700 259 665
As % of all contract jobs advertised in England 1.21% 0.81% 0.79%
As % of the Miscellaneous category 3.94% 2.60% 2.70%
Number of daily rates quoted 453 171 437
10th Percentile £390 £350 £363
25th Percentile £463 £406 £413
Median daily rate (50th Percentile) £575 £550 £525
Median % change year-on-year +4.55% +4.76% +5.00%
75th Percentile £675 £663 £625
90th Percentile £775 £763 £688
UK median daily rate £575 £550 £513
% change year-on-year +4.55% +7.32% +2.50%
Number of hourly rates quoted 6 2 8
10th Percentile £21.63 £29.36 £18.40
25th Percentile £24.75 £33.42 £38.13
Median hourly rate £25.75 £42.46 £50.00
Median % change year-on-year -39.36% -15.08% +52.67%
75th Percentile £27.42 £52.99 £69.69
90th Percentile £39.99 £57.95 £72.50
UK median hourly rate £26.87 £42.46 £50.00
% change year-on-year -36.73% -15.08% +52.67%

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 17,753 9,949 24,657
As % of all contract IT jobs advertised in England 30.75% 31.08% 29.42%
Number of daily rates quoted 12,146 6,744 16,373
10th Percentile £303 £265 £288
25th Percentile £408 £388 £381
Median daily rate (50th Percentile) £513 £500 £475
Median % change year-on-year +2.50% +5.26% -
75th Percentile £625 £613 £588
90th Percentile £721 £725 £675
UK median daily rate £500 £495 £475
% change year-on-year +1.01% +4.21% -
Number of hourly rates quoted 625 340 823
10th Percentile £12.00 £12.42 £11.85
25th Percentile £15.33 £17.00 £14.04
Median hourly rate £24.50 £27.07 £20.50
Median % change year-on-year -9.49% +32.04% -8.89%
75th Percentile £47.63 £47.25 £46.92
90th Percentile £62.15 £55.00 £53.00
UK median hourly rate £24.04 £25.75 £20.00
% change year-on-year -6.64% +28.75% -8.57%

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 3 August 2021.

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 3 August 2021.

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 3 August 2021. 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 +82 534 £588 -2.08% 146
South East -33 56 £500 +11.11% 15
South West 0 21 £600 +31.87% 17
Midlands -26 21 £475 +50.79% 15
West Midlands -24 18 £495 - 10
North of England -52 16 £415 -29.66% 22
East of England -31 9 £550 +37.50% 10
North West -34 8 £415 +1.84% 13
Yorkshire -34 6 £488 -18.75% 7
North East -9 2 - - 2
East Midlands -20 2 £475 +50.79% 5
Data Structures
UK

For the 6 months to 3 August 2021, 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.

1 288 (41.14%) SQL
2 264 (37.71%) Agile Software Development
3 237 (33.86%) Java
4 217 (31.00%) Algorithms
5 185 (26.43%) Finance
6 168 (24.00%) AWS
7 159 (22.71%) Python
8 156 (22.29%) Azure
9 152 (21.71%) Social Skills
10 137 (19.57%) Multithreading
11 135 (19.29%) Analytics
12 130 (18.57%) Banking
13 121 (17.29%) Linux
14 120 (17.14%) Computer Science
14 120 (17.14%) Analytical Skills
15 118 (16.86%) Oracle
16 111 (15.86%) Scala
16 111 (15.86%) DevOps
16 111 (15.86%) Problem-Solving
17 105 (15.00%) JavaScript
18 102 (14.57%) Performance Tuning
19 99 (14.14%) Software Engineering
20 98 (14.00%) Foreign Exchange (FX)
21 93 (13.29%) HTML
22 89 (12.71%) Scrum
23 87 (12.43%) C#
24 86 (12.29%) ETL
24 86 (12.29%) Front Office
25 85 (12.14%) SQL Server
25 85 (12.14%) OO

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 64 (9.14%) Apache Spark
2 22 (3.14%) Apache Airflow
3 19 (2.71%) Luigi
4 15 (2.14%) Elasticsearch
4 15 (2.14%) SAS
5 14 (2.00%) Apache
6 13 (1.86%) Tomcat
7 12 (1.71%) CMS
7 12 (1.71%) IIS
8 11 (1.57%) SharePoint
9 8 (1.14%) Confluence
10 7 (1.00%) GemFire
11 5 (0.71%) EPiServer
11 5 (0.71%) Headless CMS
11 5 (0.71%) JBoss
11 5 (0.71%) OpenStack
11 5 (0.71%) Oracle Workflow
12 4 (0.57%) Apache Qpid
12 4 (0.57%) nginx
13 3 (0.43%) Oracle SOA Suite
Applications
1 18 (2.57%) Microsoft Excel
2 8 (1.14%) Microsoft PowerPoint
2 8 (1.14%) Photoshop
3 3 (0.43%) Microsoft Office
4 1 (0.14%) Chatbot
4 1 (0.14%) Microsoft Project
4 1 (0.14%) MS Visio
Business Applications
1 12 (1.71%) Dynamics CRM
2 8 (1.14%) Adobe Campaign
3 3 (0.43%) Oracle Procure-to-Pay
4 2 (0.29%) Dynamics NAV
4 2 (0.29%) Elite 3E
4 2 (0.29%) NetSuite
4 2 (0.29%) SAP Hybris
4 2 (0.29%) SAP R/3
5 1 (0.14%) Loan IQ
5 1 (0.14%) Magento
5 1 (0.14%) Oracle EBS
5 1 (0.14%) Oracle EBS R12
5 1 (0.14%) Salesforce.com CRM
5 1 (0.14%) SAP HCM
5 1 (0.14%) SAP S/4HANA
5 1 (0.14%) Siebel CRM
Cloud Services
1 168 (24.00%) AWS
2 156 (22.29%) Azure
3 57 (8.14%) GCP
4 45 (6.43%) Serverless
5 33 (4.71%) Power Platform
6 23 (3.29%) AWS CloudFormation
6 23 (3.29%) AWS Lambda
6 23 (3.29%) IaaS
7 19 (2.71%) Azure Data Factory
8 18 (2.57%) SaaS
9 17 (2.43%) Azure Cosmos DB
9 17 (2.43%) GitHub
10 16 (2.29%) PaaS
11 14 (2.00%) Amazon S3
11 14 (2.00%) Azure Functions
11 14 (2.00%) Heroku
12 12 (1.71%) Azure Synapse Analytics
13 11 (1.57%) Snowflake
14 9 (1.29%) Amazon EC2
15 8 (1.14%) Amazon EMR
Communications & Networking
1 30 (4.29%) SSL
1 30 (4.29%) TCP/IP
2 8 (1.14%) HTTP
3 6 (0.86%) Firewall
4 2 (0.29%) DNS
4 2 (0.29%) Internet
4 2 (0.29%) SMTP
4 2 (0.29%) SSH
4 2 (0.29%) VPN
5 1 (0.14%) Cisco ASA
5 1 (0.14%) DHCP
5 1 (0.14%) Ethernet
5 1 (0.14%) FDDI
5 1 (0.14%) HTTPS
5 1 (0.14%) IMAP
5 1 (0.14%) IPv4
5 1 (0.14%) IPv6
5 1 (0.14%) SNMP
5 1 (0.14%) WAN
5 1 (0.14%) WLAN
Database & Business Intelligence
1 85 (12.14%) SQL Server
2 79 (11.29%) Big Data
3 78 (11.14%) NoSQL
4 68 (9.71%) Hadoop
5 67 (9.57%) Relational Database
6 64 (9.14%) Data Warehouse
7 55 (7.86%) Metadata
8 50 (7.14%) PostgreSQL
9 42 (6.00%) Data Lake
9 42 (6.00%) Redis
10 34 (4.86%) Apache Hive
11 32 (4.57%) Power BI
12 31 (4.43%) Hazelcast
13 29 (4.14%) MySQL
14 26 (3.71%) Apache Cassandra
14 26 (3.71%) SQL Server Analysis Services
14 26 (3.71%) SQL Server Integration Services
15 25 (3.57%) MongoDB
16 24 (3.43%) RDBMS
17 22 (3.14%) Data Mining
Development Applications
1 63 (9.00%) Git (software)
2 43 (6.14%) JIRA
3 37 (5.29%) Jenkins
4 24 (3.43%) JUnit
4 24 (3.43%) Visual Studio
5 23 (3.29%) webpack
6 18 (2.57%) Maven
7 15 (2.14%) Gradle
8 14 (2.00%) Cucumber
8 14 (2.00%) Mockito
9 13 (1.86%) git-flow
10 12 (1.71%) TeamCity
11 10 (1.43%) Subversion
12 9 (1.29%) SQL Server Management Studio (SSMS)
13 8 (1.14%) EasyMock
13 8 (1.14%) JMeter
13 8 (1.14%) TestNG
14 7 (1.00%) Bitbucket
15 6 (0.86%) Artifactory
15 6 (0.86%) Oracle APEX
General
1 185 (26.43%) Finance
2 152 (21.71%) Social Skills
3 130 (18.57%) Banking
4 120 (17.14%) Analytical Skills
5 86 (12.29%) Front Office
6 78 (11.14%) Investment Banking
7 21 (3.00%) Presentation Skills
8 18 (2.57%) Public Sector
8 18 (2.57%) Retail
9 16 (2.29%) Marketing
10 12 (1.71%) Legal
10 12 (1.71%) Organisational Skills
11 10 (1.43%) Documentation Skills
11 10 (1.43%) German Language
12 8 (1.14%) French Language
12 8 (1.14%) Influencing Skills
12 8 (1.14%) Italian Language
12 8 (1.14%) Telecoms
13 5 (0.71%) Inclusion and Diversity
14 4 (0.57%) Retail Banking
Job Titles
1 370 (52.86%) Developer
2 158 (22.57%) Java Developer
3 76 (10.86%) Analyst
4 68 (9.71%) Senior Developer
5 63 (9.00%) Data Engineer
6 59 (8.43%) Architect
7 49 (7.00%) Senior Java Developer
8 43 (6.14%) Business Analyst
9 40 (5.71%) Investment Banking Java Developer
10 39 (5.57%) C# Developer
10 39 (5.57%) Full Stack Developer
11 28 (4.00%) Front Office Developer
12 27 (3.86%) Data Architect
12 27 (3.86%) Python Developer
13 24 (3.43%) Data Analyst
13 24 (3.43%) React Developer
14 22 (3.14%) .NET Developer
14 22 (3.14%) Consultant
14 22 (3.14%) Scala Developer
15 20 (2.86%) Software Engineer
Libraries, Frameworks & Software Standards
1 93 (13.29%) HTML
2 83 (11.86%) Kafka
3 79 (11.29%) .NET
4 77 (11.00%) Spring
5 68 (9.71%) CSS
6 61 (8.71%) REST
7 59 (8.43%) RESTful
8 57 (8.14%) React
9 50 (7.14%) Spring Boot
10 46 (6.57%) .NET Core
11 45 (6.43%) AngularJS
11 45 (6.43%) Web Services
12 40 (5.71%) FIX Protocol
12 40 (5.71%) Node.js
13 39 (5.57%) GraphQL
14 37 (5.29%) HTML5
15 31 (4.43%) Memcached
16 22 (3.14%) Jest
17 21 (3.00%) Redux
18 20 (2.86%) JSON
Miscellaneous
1 217 (31.00%) Algorithms
2 98 (14.00%) Foreign Exchange (FX)
3 70 (10.00%) Derivative
4 51 (7.29%) Management Information System
5 46 (6.57%) Greenfield Project
6 44 (6.29%) User Experience
7 36 (5.14%) Fixed Income
8 31 (4.43%) Enterprise Software
9 25 (3.57%) Cloud Native
9 25 (3.57%) Virtual Team
10 22 (3.14%) Hedge funds
11 21 (3.00%) CMDB
12 17 (2.43%) Legacy Systems
13 13 (1.86%) Equities
14 11 (1.57%) Data Centre
14 11 (1.57%) Self-Motivation
14 11 (1.57%) Taxonomies
15 9 (1.29%) Clustering
16 8 (1.14%) Marketing Technology
17 7 (1.00%) Linux Command Line
Operating Systems
1 121 (17.29%) Linux
2 57 (8.14%) Unix
3 22 (3.14%) Windows
4 6 (0.86%) Apple iOS
4 6 (0.86%) CentOS
4 6 (0.86%) Ubuntu
5 4 (0.57%) Android
5 4 (0.57%) Red Hat Enterprise Linux
6 1 (0.14%) AIX
6 1 (0.14%) Debian
6 1 (0.14%) HPUX
6 1 (0.14%) Mac OS
6 1 (0.14%) Oracle Linux
6 1 (0.14%) Slackware
6 1 (0.14%) Solaris
6 1 (0.14%) Windows Server
Processes & Methodologies
1 264 (37.71%) Agile Software Development
2 137 (19.57%) Multithreading
3 135 (19.29%) Analytics
4 120 (17.14%) Computer Science
5 111 (15.86%) DevOps
5 111 (15.86%) Problem-Solving
6 102 (14.57%) Performance Tuning
7 99 (14.14%) Software Engineering
8 89 (12.71%) Scrum
9 86 (12.29%) ETL
10 85 (12.14%) OO
11 81 (11.57%) Data Modelling
12 77 (11.00%) Business Intelligence
13 75 (10.71%) Microservices
14 74 (10.57%) Full Stack Development
15 72 (10.29%) API Design
16 69 (9.86%) Data Pipeline
17 66 (9.43%) Low Latency
17 66 (9.43%) TDD
18 64 (9.14%) Test Automation
Programming Languages
1 288 (41.14%) SQL
2 237 (33.86%) Java
3 159 (22.71%) Python
4 111 (15.86%) Scala
5 105 (15.00%) JavaScript
6 87 (12.43%) C#
7 80 (11.43%) C++
8 55 (7.86%) Java 8
8 55 (7.86%) PL/SQL
9 48 (6.86%) TypeScript
10 30 (4.29%) Haskell
11 22 (3.14%) T-SQL
12 20 (2.86%) R
13 19 (2.71%) ES6
13 19 (2.71%) Go
14 11 (1.57%) PHP
15 10 (1.43%) PowerShell
16 9 (1.29%) Apex Code
16 9 (1.29%) Java 11
17 8 (1.14%) MATLAB
Qualifications
1 69 (9.86%) Degree
2 51 (7.29%) Security Cleared
3 45 (6.43%) SC Cleared
4 39 (5.57%) Computer Science Degree
5 19 (2.71%) DV Cleared
6 8 (1.14%) AWS Certification
7 7 (1.00%) SAS Certification
8 6 (0.86%) PhD
9 5 (0.71%) ISEB
9 5 (0.71%) Master's Degree
10 2 (0.29%) ACCA
10 2 (0.29%) CIMA
10 2 (0.29%) DBS Check
11 1 (0.14%) BPSS Clearance
11 1 (0.14%) CTC Cleared
11 1 (0.14%) ISTQB
Quality Assurance & Compliance
1 42 (6.00%) QA
2 37 (5.29%) Data Quality
3 29 (4.14%) Accessibility
4 5 (0.71%) GDPR
5 2 (0.29%) COBIT
5 2 (0.29%) IFRS
5 2 (0.29%) ISO/IEC 27001
5 2 (0.29%) MiFID
5 2 (0.29%) NIST
5 2 (0.29%) PMO
5 2 (0.29%) Sarbanes-Oxley
6 1 (0.14%) ISO 20022
6 1 (0.14%) PCI DSS
6 1 (0.14%) WCAG
System Software
1 81 (11.57%) Docker
2 8 (1.14%) Active Directory
3 7 (1.00%) HDFS
4 4 (0.57%) ISA Server
5 1 (0.14%) Ceph
Systems Management
1 75 (10.71%) Kubernetes
2 39 (5.57%) Terraform
3 19 (2.71%) Prometheus
4 15 (2.14%) MIIS
5 11 (1.57%) Ansible
6 7 (1.00%) Kibana
6 7 (1.00%) Opscode Chef
7 6 (0.86%) BladeLogic
7 6 (0.86%) Graphite
7 6 (0.86%) ITRS Geneos
7 6 (0.86%) logstash
8 5 (0.71%) Control-M
8 5 (0.71%) Puppet
9 4 (0.57%) Istio
10 3 (0.43%) Core Impact
10 3 (0.43%) Kubeflow
11 1 (0.14%) Active Directory Federation Services
11 1 (0.14%) Data Guard
11 1 (0.14%) HP ALM
11 1 (0.14%) Nagios
Vendors
1 118 (16.86%) Oracle
2 46 (6.57%) Google
3 45 (6.43%) Microsoft
4 34 (4.86%) Databricks
5 28 (4.00%) Salesforce.com
6 16 (2.29%) Teradata
7 13 (1.86%) SAP
8 11 (1.57%) Adobe
9 9 (1.29%) hybris
10 8 (1.14%) Cloudera
10 8 (1.14%) Marketo
10 8 (1.14%) Talend
11 7 (1.00%) DevExpress
12 6 (0.86%) Altiris
12 6 (0.86%) Splunk
13 5 (0.71%) Apple
13 5 (0.71%) Blackboard
13 5 (0.71%) IBM
13 5 (0.71%) New Relic
13 5 (0.71%) Telerik