Period
to 23 November 2020

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 23 November 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
6 months to
23 Nov 2020
Same period 2019 Same period 2018
Rank 274 351 344
Rank change year-on-year +77 -7 -73
Contract jobs citing Data Structures 313 575 781
As % of all contract jobs advertised in the UK 0.87% 0.70% 0.75%
As % of the Miscellaneous category 2.57% 2.24% 2.32%
Number of daily rates quoted 218 371 523
Median daily rate £500 £525 £500
Median daily rate % change year-on-year -4.76% +5.00% +8.70%
10th Percentile £331 £350 £361
90th Percentile £716 £713 £700
UK excluding London median daily rate £455 £450 £425
% change year-on-year +1.11% +5.88% -
Number of hourly rates quoted 9 13 9
Median hourly rate £38.00 £42.50 £39.50
Median hourly rate % change year-on-year -10.59% +7.59% +12.86%
10th Percentile £32.15 £32.10 £33.67
90th Percentile £61.41 £73.75 £46.90
UK excluding London median hourly rate £57.50 £42.50 £44.50
% change year-on-year +35.29% -4.49% +27.14%

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 12,163 25,614 33,613
As % of all contract IT jobs advertised in the UK 33.81% 31.16% 32.38%
Number of daily rates quoted 7,610 16,217 21,935
Median daily rate £475 £466 £475
Median daily rate % change year-on-year +1.93% -1.89% +5.56%
10th Percentile £250 £260 £275
90th Percentile £700 £669 £650
UK excluding London median daily rate £413 £425 £425
% change year-on-year -2.94% - +6.25%
Number of hourly rates quoted 541 1,035 1,060
Median hourly rate £34.00 £22.85 £20.00
Median hourly rate % change year-on-year +48.80% +14.25% -
10th Percentile £12.71 £12.00 £12.22
90th Percentile £56.25 £53.75 £48.88
Median hourly rate £26.00 £22.50 £19.25
% change year-on-year +15.56% +16.88% -0.47%

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 23 November 2020.

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 23 November 2020.

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 23 November 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
England +66 270 £532 +1.29% 190
London +35 164 £550 -4.35% 122
UK excluding London +142 111 £455 +1.11% 79
Work from Home -86 64 £450 +12.50% 66
North of England +113 33 £476 +30.27% 32
South East +112 28 £389 -12.28% 16
North West +89 21 £575 +64.29% 9
South West +85 18 £455 -6.67% 3
East of England +57 11 £600 +33.33% 5
Yorkshire +65 10 £418 +7.74% 21
Midlands +78 7 £315 -33.68% 10
Northern Ireland +15 7 £431 -12.04%
Scotland +66 6 £438 +12.90% 12
East Midlands +43 4 £315 +5.00% 3
West Midlands +58 3 £538 +13.16% 7
North East +37 2 £500 +37.93% 2
Wales +34 1 £500 +25.00% 1

For the 6 months to 23 November 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 with a requirement for Data Structures.

1 135 (43.13%) Agile Software Development
2 101 (32.27%) Java
3 99 (31.63%) SQL
4 75 (23.96%) Data Modelling
5 73 (23.32%) Python
6 71 (22.68%) Finance
7 69 (22.04%) Algorithms
8 68 (21.73%) Analytics
9 63 (20.13%) Business Intelligence
10 56 (17.89%) Analytical Skills
11 52 (16.61%) JavaScript
12 50 (15.97%) DevOps
12 50 (15.97%) Problem-Solving
13 49 (15.65%) OO
14 48 (15.34%) Azure
15 46 (14.70%) Computer Science
15 46 (14.70%) Microsoft
16 44 (14.06%) SDLC
17 42 (13.42%) Data Warehouse
18 40 (12.78%) Git (software)
19 38 (12.14%) Scrum
20 37 (11.82%) Multithreading
20 37 (11.82%) Jenkins
21 36 (11.50%) Machine Learning
21 36 (11.50%) Data Architecture
21 36 (11.50%) Data Analysis
22 35 (11.18%) Web Services
23 34 (10.86%) Software Engineering
23 34 (10.86%) React
23 34 (10.86%) Power BI

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 16 (5.11%) Apache Spark
2 14 (4.47%) WebSphere
3 12 (3.83%) Confluence
3 12 (3.83%) WebLogic
4 11 (3.51%) SharePoint
5 9 (2.88%) CMS
6 7 (2.24%) SAS
7 5 (1.60%) Apache Airflow
8 4 (1.28%) Mule
8 4 (1.28%) Oracle Workflow
8 4 (1.28%) Tomcat
9 2 (0.64%) Apache
10 1 (0.32%) Elasticsearch
10 1 (0.32%) IBM Domino
10 1 (0.32%) IIS
10 1 (0.32%) Jupyter
10 1 (0.32%) Luigi
10 1 (0.32%) MQSeries
10 1 (0.32%) OpenStack
10 1 (0.32%) Oracle SOA Suite
Applications
1 19 (6.07%) Microsoft Excel
2 12 (3.83%) Microsoft Office
3 6 (1.92%) MS Visio
4 5 (1.60%) Microsoft PowerPoint
5 3 (0.96%) SPSS
Business Applications
1 5 (1.60%) SAP APO
2 4 (1.28%) Primavera
3 3 (0.96%) Dynamics CRM
3 3 (0.96%) SAP S/4HANA
3 3 (0.96%) SAP SD
4 2 (0.64%) Advent Geneva
4 2 (0.64%) Oracle EBS
4 2 (0.64%) Payment Gateway
5 1 (0.32%) Cognos TM1
5 1 (0.32%) Maximo
5 1 (0.32%) Salesforce.com CRM
5 1 (0.32%) SAP HCM
5 1 (0.32%) SAP MM
5 1 (0.32%) SAP PP
5 1 (0.32%) Unit4 Business World
5 1 (0.32%) Workday HCM
Cloud Services
1 48 (15.34%) Azure
2 34 (10.86%) Power Platform
3 32 (10.22%) AWS
4 23 (7.35%) Cloud Computing
5 12 (3.83%) Dynamics 365
6 11 (3.51%) GitHub
6 11 (3.51%) Serverless
7 9 (2.88%) Amazon S3
7 9 (2.88%) Azure Data Factory
8 7 (2.24%) GCP
9 6 (1.92%) Google Play
9 6 (1.92%) npm
10 5 (1.60%) Amazon EC2
11 4 (1.28%) Amazon ECS
11 4 (1.28%) Amazon EMR
11 4 (1.28%) Amazon SQS
11 4 (1.28%) AWS CloudFormation
11 4 (1.28%) PaaS
11 4 (1.28%) PowerApps
12 3 (0.96%) Salesforce Service Cloud
Communications & Networking
1 14 (4.47%) HTTP
2 4 (1.28%) Internet
3 3 (0.96%) TCP/IP
4 2 (0.64%) Skype
4 2 (0.64%) WebEx
5 1 (0.32%) Firewall
5 1 (0.32%) RS-232
Database & Business Intelligence
1 42 (13.42%) Data Warehouse
2 34 (10.86%) Power BI
3 30 (9.58%) Big Data
4 29 (9.27%) Relational Database
5 27 (8.63%) Data Lake
6 23 (7.35%) NoSQL
7 21 (6.71%) SQL Server
7 21 (6.71%) Tableau
8 12 (3.83%) PostgreSQL
8 12 (3.83%) SQL Server Integration Services
9 11 (3.51%) Oracle Database
9 11 (3.51%) RDBMS
10 10 (3.19%) Amazon RDS
11 9 (2.88%) Hadoop
11 9 (2.88%) Oracle Database 11g
11 9 (2.88%) Oracle Database 12c
11 9 (2.88%) Redis
12 8 (2.56%) Amazon Redshift
12 8 (2.56%) Qlik Sense
13 7 (2.24%) Amazon Aurora
Development Applications
1 40 (12.78%) Git (software)
2 37 (11.82%) Jenkins
3 20 (6.39%) Maven
4 19 (6.07%) Gradle
5 17 (5.43%) JUnit
6 16 (5.11%) Mockito
7 15 (4.79%) Ant
7 15 (4.79%) JIRA
8 13 (4.15%) JMeter
9 9 (2.88%) git-flow
10 7 (2.24%) Selenium
10 7 (2.24%) Visual Studio
11 6 (1.92%) Subversion
12 5 (1.60%) Android Studio
12 5 (1.60%) ER Studio
12 5 (1.60%) ERwin
12 5 (1.60%) SonarQube
12 5 (1.60%) Sonatype Nexus
12 5 (1.60%) SQL Server Management Studio (SSMS)
12 5 (1.60%) webpack
General
1 71 (22.68%) Finance
2 33 (10.54%) Banking
3 21 (6.71%) Investment Banking
4 16 (5.11%) Front Office
5 15 (4.79%) Manufacturing
5 15 (4.79%) Public Sector
5 15 (4.79%) Retail
6 9 (2.88%) Marketing
6 9 (2.88%) Pharmaceutical
7 6 (1.92%) Telecoms
8 3 (0.96%) Financial Institution
8 3 (0.96%) Games
8 3 (0.96%) Publishing
8 3 (0.96%) Retail Banking
9 2 (0.64%) Electronics
9 2 (0.64%) Law
10 1 (0.32%) Advertising
10 1 (0.32%) Legal
10 1 (0.32%) Local Government
10 1 (0.32%) Prime Brokerage
Job Titles
1 119 (38.02%) Developer
2 43 (13.74%) Java Developer
3 35 (11.18%) Analyst
4 31 (9.90%) Architect
5 26 (8.31%) Data Architect
6 20 (6.39%) Data Engineer
7 19 (6.07%) Senior Developer
8 18 (5.75%) Consultant
9 15 (4.79%) Business Analyst
10 11 (3.51%) Data Modeller
10 11 (3.51%) Front End Developer (Client-Side Developer)
11 9 (2.88%) Data Consultant
11 9 (2.88%) Senior Java Developer
12 8 (2.56%) Azure Engineer
12 8 (2.56%) Data Migration Consultant
12 8 (2.56%) Migration Consultant
12 8 (2.56%) Oracle Developer
12 8 (2.56%) Python Developer
12 8 (2.56%) Systems Analyst
13 7 (2.24%) Investment Banking Java Developer
Libraries, Frameworks & Software Standards
1 35 (11.18%) Web Services
2 34 (10.86%) React
3 32 (10.22%) AngularJS
4 31 (9.90%) Spring
5 29 (9.27%) JSON
5 29 (9.27%) REST
6 27 (8.63%) RESTful
7 25 (7.99%) HTML
8 24 (7.67%) SOAP
9 23 (7.35%) CSS
10 21 (6.71%) XML
11 19 (6.07%) Kafka
12 17 (5.43%) J2EE
13 16 (5.11%) FIX Protocol
13 16 (5.11%) HTML5
14 15 (4.79%) Redux
15 13 (4.15%) .NET
15 13 (4.15%) Node.js
16 12 (3.83%) RxJava
17 10 (3.19%) WebSockets
Miscellaneous
1 69 (22.04%) Algorithms
2 56 (17.89%) Analytical Skills
3 33 (10.54%) User Experience
4 19 (6.07%) Enterprise Software
5 15 (4.79%) Management Information System
6 13 (4.15%) Greenfield Project
6 13 (4.15%) Mobile App
7 12 (3.83%) Foreign Exchange (FX)
7 12 (3.83%) Mobile Payment
8 9 (2.88%) Credit Risk
9 8 (2.56%) FMCG
9 8 (2.56%) Virtual Team
10 5 (1.60%) NHS
10 5 (1.60%) Reference Data
11 4 (1.28%) Contract for Difference
11 4 (1.28%) Mobile Banking
11 4 (1.28%) Spread Betting
12 3 (0.96%) Derivative
12 3 (0.96%) Market Risk
12 3 (0.96%) Self-Motivation
Operating Systems
1 24 (7.67%) Linux
2 9 (2.88%) Unix
3 8 (2.56%) Windows
4 6 (1.92%) Android
5 3 (0.96%) Apple iOS
Processes & Methodologies
1 135 (43.13%) Agile Software Development
2 75 (23.96%) Data Modelling
3 68 (21.73%) Analytics
4 63 (20.13%) Business Intelligence
5 50 (15.97%) DevOps
5 50 (15.97%) Problem-Solving
6 49 (15.65%) OO
7 46 (14.70%) Computer Science
8 44 (14.06%) SDLC
9 38 (12.14%) Scrum
10 37 (11.82%) Multithreading
11 36 (11.50%) Data Analysis
11 36 (11.50%) Data Architecture
11 36 (11.50%) Machine Learning
12 34 (10.86%) Software Engineering
13 33 (10.54%) Data Science
13 33 (10.54%) Test Automation
14 32 (10.22%) Continuous Integration
15 29 (9.27%) Visualisation
16 28 (8.95%) Migration
Programming Languages
1 101 (32.27%) Java
2 99 (31.63%) SQL
3 73 (23.32%) Python
4 52 (16.61%) JavaScript
5 19 (6.07%) Scala
6 18 (5.75%) R
7 16 (5.11%) C#
7 16 (5.11%) Kotlin
8 15 (4.79%) C++
9 10 (3.19%) TypeScript
10 9 (2.88%) C
10 9 (2.88%) T-SQL
11 7 (2.24%) Java 8
12 5 (1.60%) Apple Swift
12 5 (1.60%) Objective-C
13 4 (1.28%) ES6
14 3 (0.96%) Apex Code
14 3 (0.96%) Bash Shell
15 2 (0.64%) Groovy
15 2 (0.64%) PowerShell
Qualifications
1 26 (8.31%) Degree
2 18 (5.75%) Computer Science Degree
3 13 (4.15%) Security Cleared
4 11 (3.51%) PhD
5 8 (2.56%) SC Cleared
6 4 (1.28%) Master's Degree
6 4 (1.28%) Numerate Degree
7 2 (0.64%) DV Cleared
7 2 (0.64%) ISEB
8 1 (0.32%) DBS Check
Quality Assurance & Compliance
1 18 (5.75%) QA
2 14 (4.47%) Data Quality
3 1 (0.32%) Cyber Essentials
3 1 (0.32%) Cyber Essentials PLUS
3 1 (0.32%) GDPR
3 1 (0.32%) ISO 9001
3 1 (0.32%) ISO/IEC 27001
3 1 (0.32%) NCSC
System Software
1 20 (6.39%) Docker
2 2 (0.64%) Apache ZooKeeper
2 2 (0.64%) etcd
2 2 (0.64%) Varnish
Systems Management
1 25 (7.99%) Kubernetes
2 9 (2.88%) Terraform
3 7 (2.24%) Opscode Chef
3 7 (2.24%) Puppet
4 4 (1.28%) Ansible
5 2 (0.64%) Consul
6 1 (0.32%) Hadoop YARN
6 1 (0.32%) Istio
6 1 (0.32%) Rundeck
6 1 (0.32%) Single Sign-On
Vendors
1 46 (14.70%) Microsoft
2 31 (9.90%) Oracle
3 21 (6.71%) SAP
4 15 (4.79%) Google
5 9 (2.88%) Databricks
5 9 (2.88%) Talend
6 6 (1.92%) Apple
6 6 (1.92%) Salesforce.com
7 5 (1.60%) Atlassian
7 5 (1.60%) Informatica
8 4 (1.28%) Alteryx
8 4 (1.28%) CA Agile Central
8 4 (1.28%) ServiceNow
8 4 (1.28%) Splunk
9 3 (0.96%) IBM
9 3 (0.96%) MuleSoft
10 2 (0.64%) Advent
10 2 (0.64%) Black Duck
10 2 (0.64%) Blue Prism
10 2 (0.64%) Sybase