Period
to

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 2 July 2022 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
2 Jul 2022
Same period 2021 Same period 2020
Rank 276 248 292
Rank change year-on-year -28 +44 +39
Contract jobs citing Data Structures 847 733 338
As % of all contract jobs advertised in the UK 0.95% 1.11% 0.82%
As % of the Miscellaneous category 2.99% 3.64% 2.66%
Number of daily rates quoted 568 462 219
10th Percentile £425 £388 £367
25th Percentile £500 £463 £425
Median daily rate (50th Percentile) £600 £553 £525
Median % change year-on-year +8.60% +5.24% +0.96%
75th Percentile £740 £655 £650
90th Percentile £850 £775 £740
UK excluding London median daily rate £525 £488 £491
% change year-on-year +7.69% -0.76% +9.17%
Number of hourly rates quoted 7 8 2
10th Percentile £16.10 £22.88 £29.36
25th Percentile £16.41 £24.75 £33.42
Median hourly rate £20.00 £26.87 £42.46
Median % change year-on-year -25.55% -36.73% -15.08%
75th Percentile £25.70 £52.53 £52.99
90th Percentile £38.14 £53.38 £57.95
UK excluding London median hourly rate £16.82 £27.73 £27.43
% change year-on-year -39.34% +1.11% -59.37%

Data Structures is in the General and Transferable 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 Skills
UK
Contract vacancies with a requirement for generic IT skills 28,281 20,141 12,699
As % of all contract IT jobs advertised in the UK 31.78% 30.37% 30.76%
Number of daily rates quoted 19,931 13,667 8,350
10th Percentile £313 £300 £263
25th Percentile £438 £400 £375
Median daily rate (50th Percentile) £550 £500 £488
Median % change year-on-year +10.00% +2.56% +2.63%
75th Percentile £665 £606 £600
90th Percentile £775 £700 £713
UK excluding London median daily rate £488 £436 £433
% change year-on-year +11.81% +0.77% +1.80%
Number of hourly rates quoted 678 696 480
10th Percentile £14.50 £12.00 £12.61
25th Percentile £17.50 £15.50 £16.73
Median hourly rate £26.74 £25.00 £24.86
Median % change year-on-year +6.96% +0.58% +19.18%
75th Percentile £51.40 £47.71 £46.56
90th Percentile £66.00 £60.00 £55.00
UK excluding London median hourly rate £21.50 £21.82 £20.99
% change year-on-year -1.47% +3.97% +12.08%

Data Structures
Job Vacancy Trend

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

Job vacancy trend for Data Structures in the UK

Data Structures
Contractor Daily Rate Trend

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

Daily rate trend for Data Structures in the UK

Data Structures
Daily Rate Histogram

Daily rate distribution for jobs citing Data Structures over the 6 months to 2 July 2022.

Daily rate histogram for Data Structures in the UK

Data Structures
Contractor Hourly Rate Trend

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

Hourly rate trend for Data Structures in the UK

Data Structures
Hourly Rate Histogram

Hourly rate distribution of jobs citing Data Structures over the 6 months to 2 July 2022.

Hourly rate histogram for Data Structures in the UK

Data Structures
Top 17 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 2 July 2022. 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
Jobs
England -51 722 £613 +6.52% 188
London -59 515 £650 +12.46% 119
Work from Home -13 406 £588 +6.82% 102
UK excluding London +5 205 £525 +7.69% 74
South East -7 64 £520 -0.95% 20
Midlands -18 36 £550 +15.79% 18
North of England -27 34 £525 +25.00% 11
West Midlands -22 31 £595 +20.20% 16
North West -19 23 £525 +25.00% 7
Scotland -18 19 £481 +13.18% 2
South West -13 18 £510 -7.27% 9
East of England -13 15 £518 +15.11% 11
Wales -1 11 £513 +7.89% 2
Yorkshire -27 10 £525 +7.69% 3
Northern Ireland +3 9 £495 - 1
East Midlands -3 5 £475 +19.50% 2
North East -10 1 - - 1

For the 6 months to 2 July 2022, 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.

1 321 (37.90%) Python
2 318 (37.54%) Agile
3 285 (33.65%) Algorithms
4 265 (31.29%) SQL
5 240 (28.34%) Finance
6 238 (28.10%) Social Skills
7 218 (25.74%) Java
8 188 (22.20%) Analytics
9 171 (20.19%) Analytical Skills
10 166 (19.60%) AWS
11 156 (18.42%) Azure
12 152 (17.95%) Data Modelling
13 146 (17.24%) Git (software)
14 122 (14.40%) Problem-Solving
15 109 (12.87%) CI/CD
15 109 (12.87%) OO
16 108 (12.75%) Business Intelligence
16 108 (12.75%) Banking
17 106 (12.51%) Software Engineering
17 106 (12.51%) JavaScript
18 105 (12.40%) ETL
19 102 (12.04%) DevOps
20 98 (11.57%) Linux
21 95 (11.22%) Test Automation
22 93 (10.98%) Computer Science
23 90 (10.63%) Data Warehouse
23 90 (10.63%) React
24 87 (10.27%) C#
24 87 (10.27%) Microservices
25 85 (10.04%) Oracle

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 62 (7.32%) Apache Spark
2 21 (2.48%) Confluence
3 17 (2.01%) SAS
4 16 (1.89%) Tomcat
5 14 (1.65%) Apache
6 12 (1.42%) Apache Airflow
6 12 (1.42%) Apache Qpid
7 11 (1.30%) JBoss
8 10 (1.18%) CMS
9 8 (0.94%) SharePoint
9 8 (0.94%) SharePoint Server
10 7 (0.83%) EPiServer
10 7 (0.83%) Jupyter
11 5 (0.59%) Camunda
11 5 (0.59%) WebLogic
12 4 (0.47%) Apache Pig
13 3 (0.35%) Ethereum
13 3 (0.35%) Luigi
14 2 (0.24%) Cloud Foundry
14 2 (0.24%) nginx
Applications
1 28 (3.31%) Microsoft Excel
2 12 (1.42%) Microsoft Office
3 10 (1.18%) Oracle Smart View
4 2 (0.24%) Chatbot
4 2 (0.24%) Microsoft PowerPoint
4 2 (0.24%) Spreadsheet
5 1 (0.12%) SPSS
Business Applications
1 12 (1.42%) Payment Gateway
1 12 (1.42%) Shopify
2 7 (0.83%) Sparx Enterprise Architect
3 6 (0.71%) Oracle EBS
3 6 (0.71%) Oracle Procure-to-Pay
4 5 (0.59%) SAP MDG
5 4 (0.47%) Dynamics CRM
5 4 (0.47%) Oracle ERP
6 3 (0.35%) SAP MDM
7 2 (0.24%) Bankmaster
7 2 (0.24%) SAP BPC
7 2 (0.24%) SAP HR
7 2 (0.24%) Unit4 Business World
8 1 (0.12%) Cerner Millennium
8 1 (0.12%) Dynamics AX
8 1 (0.12%) Dynamics GP
8 1 (0.12%) NetSuite
8 1 (0.12%) Salesforce.com CRM
8 1 (0.12%) SAP HCM
8 1 (0.12%) SAP SD
Cloud Services
1 166 (19.60%) AWS
2 156 (18.42%) Azure
3 53 (6.26%) GCP
3 53 (6.26%) Serverless
4 50 (5.90%) Power Platform
5 37 (4.37%) AWS Lambda
6 31 (3.66%) Azure Data Factory
7 27 (3.19%) Amazon Kinesis
8 25 (2.95%) Azure DevOps
9 22 (2.60%) SaaS
10 21 (2.48%) Amazon Cognito
11 20 (2.36%) AWS CloudFormation
12 19 (2.24%) Snowflake
13 16 (1.89%) npm
14 13 (1.53%) Amazon S3
14 13 (1.53%) GitHub
14 13 (1.53%) PaaS
15 11 (1.30%) NuGet
16 10 (1.18%) Azure Functions
16 10 (1.18%) OpenShift
Communications & Networking
1 19 (2.24%) Firewall
2 16 (1.89%) Internet
3 12 (1.42%) DMZ
3 12 (1.42%) DNS
4 10 (1.18%) TCP/IP
5 8 (0.94%) HTTP
6 6 (0.71%) Multicast
7 3 (0.35%) Intranet
8 2 (0.24%) Kerberos
9 1 (0.12%) Broadband
9 1 (0.12%) DWDM
9 1 (0.12%) GPON
9 1 (0.12%) MPLS
9 1 (0.12%) Reverse Proxy
9 1 (0.12%) SONET
9 1 (0.12%) VPN
Database & Business Intelligence
1 90 (10.63%) Data Warehouse
2 81 (9.56%) Big Data
3 64 (7.56%) SQL Server
4 60 (7.08%) NoSQL
5 59 (6.97%) Metadata
5 59 (6.97%) Relational Database
6 50 (5.90%) Data Lake
7 44 (5.19%) Power BI
8 43 (5.08%) Tableau
9 38 (4.49%) PostgreSQL
10 34 (4.01%) Hadoop
11 33 (3.90%) MySQL
12 29 (3.42%) SQL Server Integration Services
13 26 (3.07%) MongoDB
14 25 (2.95%) Oracle Database
15 24 (2.83%) Oracle Reports
16 21 (2.48%) BigQuery
16 21 (2.48%) RDBMS
17 18 (2.13%) Apache Hive
17 18 (2.13%) HBase
Development Applications
1 146 (17.24%) Git (software)
2 60 (7.08%) JIRA
3 49 (5.79%) Jenkins
4 29 (3.42%) TeamCity
5 25 (2.95%) Maven
6 24 (2.83%) GitLab
7 22 (2.60%) Subversion
7 22 (2.60%) webpack
8 16 (1.89%) Artifactory
9 14 (1.65%) PowerDesigner
10 13 (1.53%) Babel
11 12 (1.42%) ERwin
11 12 (1.42%) git-flow
12 11 (1.30%) Bitbucket
12 11 (1.30%) MSBuild
13 10 (1.18%) JUnit
14 9 (1.06%) Visual Studio
15 7 (0.83%) Cucumber
15 7 (0.83%) Mocha
16 6 (0.71%) Mockito
General
1 240 (28.34%) Finance
2 238 (28.10%) Social Skills
3 171 (20.19%) Analytical Skills
4 108 (12.75%) Banking
5 69 (8.15%) Front Office
6 52 (6.14%) Investment Banking
7 50 (5.90%) Public Sector
8 35 (4.13%) Retail
9 19 (2.24%) Marketing
10 18 (2.13%) Documentation Skills
11 17 (2.01%) Legal
12 13 (1.53%) Back Office
13 11 (1.30%) Games
13 11 (1.30%) Presentation Skills
14 10 (1.18%) Financial Institution
14 10 (1.18%) Telecoms
15 9 (1.06%) Organisational Skills
16 8 (0.94%) Manufacturing
16 8 (0.94%) Pharmaceutical
17 6 (0.71%) Influencing Skills
Job Titles
1 341 (40.26%) Developer
2 109 (12.87%) Analyst
3 88 (10.39%) Architect
4 81 (9.56%) Java Developer
5 75 (8.85%) Python Developer
6 71 (8.38%) Business Analyst
7 66 (7.79%) Data Engineer
8 59 (6.97%) Senior Developer
9 46 (5.43%) Data Architect
10 45 (5.31%) Software Engineer
11 44 (5.19%) Senior Java Developer
12 33 (3.90%) Senior Software Engineer
13 31 (3.66%) Consultant
14 30 (3.54%) Data Analyst
14 30 (3.54%) Python Engineer
15 27 (3.19%) React Developer
16 26 (3.07%) Full Stack Developer
17 22 (2.60%) Business Intelligence Developer
18 21 (2.48%) Azure Engineer
19 20 (2.36%) AWS Engineer
Libraries, Frameworks & Software Standards
1 90 (10.63%) React
2 71 (8.38%) Kafka
3 62 (7.32%) .NET
4 54 (6.38%) Node.js
5 49 (5.79%) RESTful
6 48 (5.67%) HTML
7 42 (4.96%) REST
8 41 (4.84%) CSS
9 40 (4.72%) JSON
10 33 (3.90%) Spring
11 30 (3.54%) jQuery
12 29 (3.42%) Web Services
13 28 (3.31%) .NET Framework
13 28 (3.31%) AngularJS
13 28 (3.31%) XML
14 24 (2.83%) HTML5
15 21 (2.48%) CSS3
16 20 (2.36%) Redux
17 19 (2.24%) Flask
17 19 (2.24%) Pandas
Miscellaneous
1 285 (33.65%) Algorithms
2 56 (6.61%) Foreign Exchange (FX)
3 38 (4.49%) User Experience
4 37 (4.37%) Management Information System
5 31 (3.66%) Derivative
6 26 (3.07%) Cloud Native
7 25 (2.95%) Virtual Team
8 21 (2.48%) Greenfield Project
9 18 (2.13%) Fixed Income
10 17 (2.01%) Hedge funds
11 14 (1.65%) Data Protection Act
11 14 (1.65%) Public Cloud
12 13 (1.53%) NHS
13 11 (1.30%) Contract for Difference
13 11 (1.30%) Data Centre
14 10 (1.18%) Reference Data
14 10 (1.18%) Spread Betting
15 8 (0.94%) Equities
15 8 (0.94%) Legacy Systems
16 7 (0.83%) Legacy Applications
Operating Systems
1 98 (11.57%) Linux
2 45 (5.31%) Windows
3 35 (4.13%) Unix
4 2 (0.24%) Android
4 2 (0.24%) Windows Server
5 1 (0.12%) Apple iOS
5 1 (0.12%) VME
5 1 (0.12%) VMS
Processes & Methodologies
1 318 (37.54%) Agile
2 188 (22.20%) Analytics
3 152 (17.95%) Data Modelling
4 122 (14.40%) Problem-Solving
5 109 (12.87%) CI/CD
5 109 (12.87%) OO
6 108 (12.75%) Business Intelligence
7 106 (12.51%) Software Engineering
8 105 (12.40%) ETL
9 102 (12.04%) DevOps
10 95 (11.22%) Test Automation
11 93 (10.98%) Computer Science
12 87 (10.27%) Microservices
13 79 (9.33%) Scrum
14 78 (9.21%) Multithreading
15 72 (8.50%) Migration
16 67 (7.91%) Stakeholder Management
17 64 (7.56%) Data Analysis
17 64 (7.56%) Data Transformation
18 62 (7.32%) Data Management
Programming Languages
1 321 (37.90%) Python
2 265 (31.29%) SQL
3 218 (25.74%) Java
4 106 (12.51%) JavaScript
5 87 (10.27%) C#
6 61 (7.20%) C++
7 54 (6.38%) Scala
8 45 (5.31%) TypeScript
9 33 (3.90%) PL/SQL
9 33 (3.90%) R
10 30 (3.54%) C
11 26 (3.07%) Shell Script
12 22 (2.60%) T-SQL
13 21 (2.48%) PHP
14 16 (1.89%) Go
15 15 (1.77%) SAS Macro
15 15 (1.77%) VBA
16 14 (1.65%) Perl
17 13 (1.53%) ES6
18 11 (1.30%) HiveQL
Qualifications
1 82 (9.68%) Degree
2 77 (9.09%) Security Cleared
3 57 (6.73%) SC Cleared
4 43 (5.08%) Computer Science Degree
5 22 (2.60%) Numerate Degree
6 15 (1.77%) DV Cleared
7 6 (0.71%) HND
8 4 (0.47%) MOS
9 3 (0.35%) Master's Degree
9 3 (0.35%) Microsoft Certification
10 2 (0.24%) ACCA
10 2 (0.24%) BPSS Clearance
10 2 (0.24%) CIMA
10 2 (0.24%) HNC
10 2 (0.24%) ISTQB
10 2 (0.24%) MCSA
10 2 (0.24%) MCSE
10 2 (0.24%) OSCP
11 1 (0.12%) ISEB
11 1 (0.12%) PhD
Quality Assurance & Compliance
1 38 (4.49%) QA
2 36 (4.25%) Data Quality
3 13 (1.53%) GDPR
4 12 (1.42%) PCI DSS
5 11 (1.30%) Accessibility
6 4 (0.47%) IFRS
7 3 (0.35%) ISO/IEC 27001
8 2 (0.24%) NIST
8 2 (0.24%) PMO
9 1 (0.12%) IFRS 9
9 1 (0.12%) MiFID
9 1 (0.12%) Sarbanes-Oxley
9 1 (0.12%) SLA
System Software
1 71 (8.38%) Docker
2 13 (1.53%) HDFS
3 3 (0.35%) Virtual Machines
4 1 (0.12%) Active Directory
4 1 (0.12%) Oracle RAC
Systems Management
1 74 (8.74%) Kubernetes
2 27 (3.19%) Terraform
3 24 (2.83%) Ansible
4 9 (1.06%) Grafana
5 7 (0.83%) Red Hat Satellite
6 4 (0.47%) Puppet
6 4 (0.47%) Single Sign-On
7 3 (0.35%) Hadoop YARN
7 3 (0.35%) Kibana
8 2 (0.24%) HP Fortify
8 2 (0.24%) Opscode Chef
8 2 (0.24%) Packer
9 1 (0.12%) Ambari
9 1 (0.12%) Amdocs OSS
9 1 (0.12%) Argo
9 1 (0.12%) Istio
Vendors
1 85 (10.04%) Oracle
2 64 (7.56%) Microsoft
3 37 (4.37%) Databricks
4 36 (4.25%) SAP
5 34 (4.01%) Google
6 14 (1.65%) Salesforce.com
7 13 (1.53%) Informatica
7 13 (1.53%) Talend
8 12 (1.42%) Alteryx
8 12 (1.42%) PayPal
8 12 (1.42%) WorldPay
9 10 (1.18%) Cloudera
9 10 (1.18%) Splunk
10 8 (0.94%) Workday
11 7 (0.83%) Red Hat
11 7 (0.83%) Sparx
12 5 (0.59%) IBM
12 5 (0.59%) MuleSoft
12 5 (0.59%) Sun
13 4 (0.47%) Tealium