Period
to 3 March 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 March 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 Mar 2021
Same period 2020 Same period 2019
Rank 239 294 291
Rank change year-on-year +55 -3 +34
Contract jobs citing Data Structures 409 513 796
As % of all contract jobs advertised in England 1.05% 0.85% 0.89%
As % of the Miscellaneous category 3.07% 2.67% 2.78%
Number of daily rates quoted 327 334 540
Median daily rate £550 £519 £525
Median daily rate % change year-on-year +5.97% -1.14% +5.00%
10th Percentile £329 £363 £370
90th Percentile £696 £700 £725
UK median daily rate £525 £515 £500
% change year-on-year +2.04% +2.85% +3.68%
Number of hourly rates quoted 4 11 4
Median hourly rate £57.50 £42.50 £40.85
Median hourly rate % change year-on-year +35.29% +4.05% -12.16%
10th Percentile £30.65 £26.65 £37.59
90th Percentile £61.80 £73.75 £42.19
UK median hourly rate £42.50 £42.50 £40.85
% change year-on-year - +4.05% -12.16%

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 13,304 19,227 28,655
As % of all contract IT jobs advertised in England 34.28% 31.80% 32.14%
Number of daily rates quoted 8,883 12,655 19,276
Median daily rate £475 £475 £475
10th Percentile £253 £250 £275
90th Percentile £700 £675 £675
UK median daily rate £475 £463 £475
% change year-on-year +2.70% -2.63% +5.56%
Number of hourly rates quoted 555 806 890
Median hourly rate £25.50 £21.57 £20.25
Median hourly rate % change year-on-year +18.22% +6.54% -3.60%
10th Percentile £12.50 £12.44 £11.85
90th Percentile £57.50 £52.50 £48.75
Median hourly rate £25.50 £22.50 £20.24
% change year-on-year +13.33% +11.17% -3.62%

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 March 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 March 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 March 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 +27 285 £575 +4.55% 139
South East +60 42 £482 -3.70% 30
North of England +63 22 £440 -9.79% 25
South West +71 17 £450 -3.23% 8
North West +38 13 £477 -4.55% 14
East of England +38 11 £450 +2.86% 9
Midlands +45 10 £475 +69.04% 11
Yorkshire +44 8 £418 +19.29% 11
West Midlands +40 8 £500 -2.44% 7
East Midlands +22 2 £318 +15.45% 4
North East +30 1 £500 +11.11%
Data Structures
UK

For the 6 months to 3 March 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.

1 162 (39.61%) Agile Software Development
2 139 (33.99%) SQL
3 127 (31.05%) Algorithms
4 123 (30.07%) Java
5 115 (28.12%) Finance
6 93 (22.74%) Python
7 86 (21.03%) Analytical Skills
8 78 (19.07%) Azure
9 77 (18.83%) AWS
10 76 (18.58%) Computer Science
10 76 (18.58%) Analytics
11 74 (18.09%) Multithreading
12 70 (17.11%) Banking
13 62 (15.16%) Data Modelling
14 61 (14.91%) Business Intelligence
14 61 (14.91%) Problem-Solving
15 60 (14.67%) Data Warehouse
16 58 (14.18%) Microsoft
16 58 (14.18%) DevOps
17 57 (13.94%) C++
18 56 (13.69%) JavaScript
19 54 (13.20%) OO
20 53 (12.96%) Software Engineering
21 52 (12.71%) ETL
21 52 (12.71%) Web Services
22 49 (11.98%) Spring
23 48 (11.74%) HTML
24 47 (11.49%) C#
24 47 (11.49%) Scrum
25 45 (11.00%) Linux

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 41 (10.02%) Apache Spark
2 17 (4.16%) Apache Airflow
3 15 (3.67%) SharePoint
4 12 (2.93%) WebLogic
4 12 (2.93%) WebSphere
5 7 (1.71%) Confluence
5 7 (1.71%) SAS
6 5 (1.22%) Apache
6 5 (1.22%) Tomcat
7 4 (0.98%) Apache Qpid
8 2 (0.49%) IIS
8 2 (0.49%) Jupyter
8 2 (0.49%) Luigi
8 2 (0.49%) Oracle Coherence
8 2 (0.49%) Oracle Workflow
9 1 (0.24%) Apache Pig
9 1 (0.24%) CMS
9 1 (0.24%) Elasticsearch
9 1 (0.24%) IBM Domino
9 1 (0.24%) Mule
Applications
1 27 (6.60%) Microsoft Excel
2 17 (4.16%) Microsoft Office
3 12 (2.93%) Microsoft PowerPoint
4 3 (0.73%) MS Visio
5 2 (0.49%) SPSS
Business Applications
1 11 (2.69%) Dynamics CRM
2 4 (0.98%) SAP APO
3 2 (0.49%) NetSuite
3 2 (0.49%) Payment Gateway
3 2 (0.49%) Primavera
4 1 (0.24%) Dynamics GP
4 1 (0.24%) Elite 3E
4 1 (0.24%) Magento
4 1 (0.24%) Maximo
4 1 (0.24%) Oracle EBS
4 1 (0.24%) Salesforce.com CRM
4 1 (0.24%) SAP HCM
4 1 (0.24%) SAP MDM
4 1 (0.24%) SAP MM
4 1 (0.24%) SAP SD
Cloud Services
1 78 (19.07%) Azure
2 77 (18.83%) AWS
3 27 (6.60%) Power Platform
4 22 (5.38%) GitHub
5 20 (4.89%) AWS CloudFormation
6 15 (3.67%) GCP
7 12 (2.93%) Amazon Kinesis
7 12 (2.93%) Serverless
8 11 (2.69%) Amazon S3
8 11 (2.69%) Cloud Computing
9 10 (2.44%) Dynamics 365
9 10 (2.44%) PaaS
10 9 (2.20%) Heroku
11 8 (1.96%) Google Analytics
12 7 (1.71%) Amazon ECS
12 7 (1.71%) SaaS
13 6 (1.47%) Azure Data Factory
13 6 (1.47%) IaaS
14 4 (0.98%) AWS Lambda
14 4 (0.98%) Google Play
Communications & Networking
1 24 (5.87%) HTTP
2 3 (0.73%) Internet
2 3 (0.73%) SSL
3 1 (0.24%) OpenVPN
3 1 (0.24%) Skype
Database & Business Intelligence
1 60 (14.67%) Data Warehouse
2 42 (10.27%) Big Data
2 42 (10.27%) NoSQL
3 41 (10.02%) SQL Server
4 34 (8.31%) Relational Database
5 29 (7.09%) Tableau
6 27 (6.60%) Power BI
7 24 (5.87%) Data Lake
8 23 (5.62%) PostgreSQL
9 20 (4.89%) Snowflake Schema
10 18 (4.40%) Oracle Database
11 16 (3.91%) Hadoop
12 13 (3.18%) Parquet
13 11 (2.69%) SQL Server Integration Services
14 10 (2.44%) Oracle BI EE
14 10 (2.44%) RDBMS
14 10 (2.44%) Redis
14 10 (2.44%) Star Schema
15 8 (1.96%) Apache Cassandra
15 8 (1.96%) Oracle Database 11g
Development Applications
1 39 (9.54%) Jenkins
2 37 (9.05%) JIRA
3 34 (8.31%) Git (software)
4 22 (5.38%) JUnit
5 21 (5.13%) git-flow
6 20 (4.89%) Maven
7 18 (4.40%) Gradle
7 18 (4.40%) Mockito
8 15 (3.67%) SQL Server Management Studio (SSMS)
9 14 (3.42%) Ant
9 14 (3.42%) Visual Studio
10 12 (2.93%) JMeter
11 11 (2.69%) webpack
12 9 (2.20%) Cucumber
13 8 (1.96%) Subversion
13 8 (1.96%) TeamCity
14 6 (1.47%) ERwin
14 6 (1.47%) GitLab
15 5 (1.22%) ER Studio
16 4 (0.98%) Selenium
General
1 115 (28.12%) Finance
2 70 (17.11%) Banking
3 42 (10.27%) Investment Banking
4 40 (9.78%) Front Office
5 19 (4.65%) Retail
6 10 (2.44%) Telecoms
7 9 (2.20%) Manufacturing
7 9 (2.20%) Pharmaceutical
8 8 (1.96%) Marketing
8 8 (1.96%) Public Sector
9 5 (1.22%) Financial Institution
10 3 (0.73%) Legal
11 2 (0.49%) Games
11 2 (0.49%) Publishing
11 2 (0.49%) Retail Banking
12 1 (0.24%) Back Office
12 1 (0.24%) Electronics
12 1 (0.24%) Law
12 1 (0.24%) Local Government
12 1 (0.24%) Military
Job Titles
1 197 (48.17%) Developer
2 66 (16.14%) Java Developer
3 45 (11.00%) Analyst
4 37 (9.05%) Architect
5 36 (8.80%) Data Engineer
6 26 (6.36%) C# Developer
6 26 (6.36%) Data Architect
7 22 (5.38%) Business Analyst
8 20 (4.89%) Front Office Developer
9 19 (4.65%) Quantitative Developer
10 17 (4.16%) Investment Banking Java Developer
11 16 (3.91%) Consultant
11 16 (3.91%) Python Developer
12 15 (3.67%) Senior Developer
13 14 (3.42%) Full Stack Developer
13 14 (3.42%) React Developer
14 13 (3.18%) Python Engineer
15 12 (2.93%) C# Quant Developer
15 12 (2.93%) Oracle Developer
15 12 (2.93%) Software Engineer
Libraries, Frameworks & Software Standards
1 52 (12.71%) Web Services
2 49 (11.98%) Spring
3 48 (11.74%) HTML
4 40 (9.78%) Kafka
5 36 (8.80%) XML
6 32 (7.82%) React
6 32 (7.82%) REST
7 30 (7.33%) .NET
8 28 (6.85%) CSS
9 27 (6.60%) JSON
9 27 (6.60%) RESTful
10 25 (6.11%) HTML5
11 24 (5.87%) Redux
12 23 (5.62%) FIX Protocol
13 22 (5.38%) Spring Boot
14 21 (5.13%) AngularJS
15 19 (4.65%) .NET Core
16 17 (4.16%) NumPy
17 16 (3.91%) GraphQL
17 16 (3.91%) SOAP
Miscellaneous
1 127 (31.05%) Algorithms
2 86 (21.03%) Analytical Skills
3 41 (10.02%) User Experience
4 39 (9.54%) Foreign Exchange (FX)
5 36 (8.80%) Enterprise Software
6 23 (5.62%) Derivative
7 22 (5.38%) Greenfield Project
8 15 (3.67%) Management Information System
9 14 (3.42%) Hedge funds
10 13 (3.18%) Mobile App
10 13 (3.18%) Self-Motivation
11 12 (2.93%) Mobile Payment
12 10 (2.44%) Clustering
12 10 (2.44%) Virtual Team
13 9 (2.20%) Cloud Native
13 9 (2.20%) Reference Data
14 8 (1.96%) Credit Risk
15 7 (1.71%) Equities
16 6 (1.47%) Fixed Income
17 5 (1.22%) Contract for Difference
Operating Systems
1 45 (11.00%) Linux
2 14 (3.42%) Unix
3 5 (1.22%) Android
4 4 (0.98%) Apple iOS
4 4 (0.98%) Windows
5 3 (0.73%) CentOS
6 2 (0.49%) Mac OS
6 2 (0.49%) Ubuntu
Processes & Methodologies
1 162 (39.61%) Agile Software Development
2 76 (18.58%) Analytics
2 76 (18.58%) Computer Science
3 74 (18.09%) Multithreading
4 62 (15.16%) Data Modelling
5 61 (14.91%) Business Intelligence
5 61 (14.91%) Problem-Solving
6 58 (14.18%) DevOps
7 54 (13.20%) OO
8 53 (12.96%) Software Engineering
9 52 (12.71%) ETL
10 47 (11.49%) Scrum
11 44 (10.76%) Multithreaded Programming
11 44 (10.76%) TDD
12 41 (10.02%) Performance Tuning
12 41 (10.02%) Test Automation
13 38 (9.29%) Machine Learning
14 37 (9.05%) Continuous Integration
15 35 (8.56%) SDLC
16 34 (8.31%) Data Science
Programming Languages
1 139 (33.99%) SQL
2 123 (30.07%) Java
3 93 (22.74%) Python
4 57 (13.94%) C++
5 56 (13.69%) JavaScript
6 47 (11.49%) C#
7 36 (8.80%) Scala
8 20 (4.89%) Java 8
9 16 (3.91%) Kotlin
9 16 (3.91%) PL/SQL
9 16 (3.91%) R
9 16 (3.91%) TypeScript
10 14 (3.42%) C
11 13 (3.18%) ES6
12 10 (2.44%) T-SQL
13 8 (1.96%) PowerShell
14 7 (1.71%) Shell Script
15 6 (1.47%) Apex Code
16 5 (1.22%) Haskell
16 5 (1.22%) Objective-C
Qualifications
1 31 (7.58%) Degree
2 24 (5.87%) Computer Science Degree
3 18 (4.40%) Security Cleared
4 16 (3.91%) SC Cleared
5 12 (2.93%) PhD
6 9 (2.20%) Master's Degree
7 3 (0.73%) AWS Certification
7 3 (0.73%) ISEB
8 2 (0.49%) Numerate Degree
9 1 (0.24%) DV Cleared
9 1 (0.24%) ISTQB
Quality Assurance & Compliance
1 21 (5.13%) Data Quality
1 21 (5.13%) QA
2 3 (0.73%) IFRS
3 2 (0.49%) Dodd-Frank
3 2 (0.49%) IFRS 9
3 2 (0.49%) MiFID
3 2 (0.49%) Sarbanes-Oxley
4 1 (0.24%) GDPR
System Software
1 25 (6.11%) Docker
2 2 (0.49%) Apache ZooKeeper
2 2 (0.49%) etcd
2 2 (0.49%) HDFS
2 2 (0.49%) Varnish
3 1 (0.24%) Ceph
3 1 (0.24%) ISA Server
3 1 (0.24%) Oracle RAC
Systems Management
1 30 (7.33%) Kubernetes
2 19 (4.65%) Terraform
3 8 (1.96%) Puppet
4 7 (1.71%) Ansible
5 5 (1.22%) Opscode Chef
6 3 (0.73%) Istio
6 3 (0.73%) MIIS
6 3 (0.73%) Prometheus
7 2 (0.49%) Consul
8 1 (0.24%) Data Guard
8 1 (0.24%) Hadoop YARN
8 1 (0.24%) HP ALM
8 1 (0.24%) Oracle EDQ
8 1 (0.24%) Oracle Enterprise Manager
8 1 (0.24%) Oracle RMAN
8 1 (0.24%) Rundeck
8 1 (0.24%) Single Sign-On
Vendors
1 58 (14.18%) Microsoft
2 41 (10.02%) Oracle
3 26 (6.36%) Google
4 16 (3.91%) SAP
5 12 (2.93%) Salesforce.com
6 7 (1.71%) Databricks
7 4 (0.98%) Alteryx
7 4 (0.98%) Apple
8 3 (0.73%) Informatica
8 3 (0.73%) Splunk
9 2 (0.49%) Black Duck
9 2 (0.49%) Blue Prism
9 2 (0.49%) CA Agile Central
9 2 (0.49%) IBM
9 2 (0.49%) Sparx
9 2 (0.49%) Teradata
10 1 (0.24%) MuleSoft
10 1 (0.24%) ServiceNow
10 1 (0.24%) StreamSets
10 1 (0.24%) Xerox