Period
to 28 May 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 28 May 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
28 May 2020
Same period 2019 Same period 2018
Rank 276 307 335
Rank change year-on-year +31 +28 +15
Contract jobs citing Data Structures 406 791 753
As % of all contract jobs advertised in the UK 0.87% 0.87% 0.75%
As % of the Miscellaneous category 2.67% 2.72% 2.31%
Number of daily rates quoted 255 537 491
Median daily rate £525 £513 £500
Median daily rate % change year-on-year +2.44% +2.50% +11.11%
10th Percentile £376 £363 £350
90th Percentile £725 £713 £650
UK excluding London median daily rate £500 £450 £450
% change year-on-year +11.11% - +9.09%
Number of hourly rates quoted 8 6 12
Median hourly rate £35.00 £47.50 £70.00
Median hourly rate % change year-on-year -26.32% -32.14% +133.33%
10th Percentile £32.49 £16.50 £19.20
90th Percentile £42.88 £61.25 £80.73
UK excluding London median hourly rate £35.00 £52.50 £80.73
% change year-on-year -33.33% -34.97% +193.56%

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 15,209 29,036 32,628
As % of all contract IT jobs advertised in the UK 32.47% 31.99% 32.36%
Number of daily rates quoted 9,331 18,638 21,227
Median daily rate £475 £475 £450
Median daily rate % change year-on-year - +5.56% +2.86%
10th Percentile £250 £281 £268
90th Percentile £700 £663 £650
UK excluding London median daily rate £425 £425 £403
% change year-on-year - +5.59% +0.63%
Number of hourly rates quoted 741 1,004 1,039
Median hourly rate £29.71 £20.50 £21.90
Median hourly rate % change year-on-year +44.93% -6.39% +9.50%
10th Percentile £13.00 £11.75 £11.59
90th Percentile £53.75 £51.25 £50.69
Median hourly rate £22.50 £18.50 £21.33
% change year-on-year +21.62% -13.25% +18.47%

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 28 May 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 28 May 2020.

Hourly rate histogram for Data Structures in the UK

Data Structures
Top 16 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 28 May 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 +31 380 £541 +3.05% 113
London +28 232 £550 -4.35% 72
UK excluding London +53 155 £500 +11.11% 46
South East +86 64 £500 +5.26% 8
North of England +93 46 £505 +18.88% 11
North West +67 23 £500 +35.59% 7
East of England +42 21 £400 -11.11% 9
Work from Home +9 19 £550 -8.33% 14
Yorkshire +50 17 £613 +44.12% 3
South West +36 11 £430 -17.11% 11
Wales +32 7 £490 +18.79% 1
North East +22 7 £1,325 +194.44% 1
Midlands +37 3 - - 2
West Midlands +37 3 - -
Scotland +23 3 £600 +29.73% 4
Northern Ireland +13 1 - -

For the 6 months to 28 May 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.

1 150 (36.95%) Agile Software Development
2 145 (35.71%) SQL
3 119 (29.31%) Finance
4 105 (25.86%) Java
5 86 (21.18%) Python
6 84 (20.69%) JavaScript
6 84 (20.69%) Analytics
7 83 (20.44%) OO
7 83 (20.44%) Business Intelligence
8 80 (19.70%) Algorithms
9 79 (19.46%) AWS
10 78 (19.21%) Data Modelling
11 77 (18.97%) Analytical Skills
12 71 (17.49%) Problem-Solving
13 62 (15.27%) Azure
14 61 (15.02%) Computer Science
15 56 (13.79%) Oracle
16 55 (13.55%) SQL Server
17 54 (13.30%) Linux
17 54 (13.30%) Multithreading
18 53 (13.05%) Security Cleared
19 52 (12.81%) Visualisation
19 52 (12.81%) NoSQL
19 52 (12.81%) Banking
20 50 (12.32%) CSS
21 49 (12.07%) HTML
21 49 (12.07%) TDD
21 49 (12.07%) Git (software)
21 49 (12.07%) Public Sector
22 48 (11.82%) ETL

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 20 (4.93%) Apache Spark
2 10 (2.46%) Confluence
3 9 (2.22%) SharePoint
3 9 (2.22%) WebLogic
4 7 (1.72%) WebSphere
5 6 (1.48%) CMS
5 6 (1.48%) EPiServer
5 6 (1.48%) SAS
6 5 (1.23%) IBM Notes
7 4 (0.99%) Apache
7 4 (0.99%) Apache Airflow
7 4 (0.99%) IIS
7 4 (0.99%) Tomcat
8 3 (0.74%) BizTalk Server
9 2 (0.49%) Elasticsearch
9 2 (0.49%) NetWeaver
10 1 (0.25%) Ethereum
10 1 (0.25%) Hyperledger
10 1 (0.25%) Jupyter
10 1 (0.25%) MQSeries
Applications
1 17 (4.19%) Microsoft Excel
2 9 (2.22%) InVision
2 9 (2.22%) Microsoft Office
3 7 (1.72%) Sketch
3 7 (1.72%) Zeplin
4 3 (0.74%) Microsoft PowerPoint
5 2 (0.49%) SPSS
5 2 (0.49%) Stata
Business Applications
1 3 (0.74%) Dynamics AX
1 3 (0.74%) Dynamics CRM
1 3 (0.74%) Oracle Applications
2 2 (0.49%) ContrOCC
2 2 (0.49%) NetSuite
2 2 (0.49%) Oracle EBS
2 2 (0.49%) Oracle Financials
2 2 (0.49%) SAP BPC
3 1 (0.25%) Distributed Ledger
3 1 (0.25%) FINCAD Analytics
3 1 (0.25%) Infor M3
3 1 (0.25%) ION MarketView
3 1 (0.25%) Maximo
3 1 (0.25%) Oracle Cash Management
3 1 (0.25%) Oracle Payables
3 1 (0.25%) Oracle Receivables
3 1 (0.25%) Oracle Retail
3 1 (0.25%) R3 Corda
3 1 (0.25%) StreamServe
3 1 (0.25%) Teamcenter
Cloud Services
1 79 (19.46%) AWS
2 62 (15.27%) Azure
3 42 (10.34%) GCP
4 25 (6.16%) Power Platform
5 23 (5.67%) Amazon S3
6 18 (4.43%) Amazon EC2
7 17 (4.19%) Heroku
8 16 (3.94%) GitHub
9 8 (1.97%) Serverless
10 7 (1.72%) Amazon EMR
10 7 (1.72%) Amazon Kinesis
10 7 (1.72%) AWS Lambda
10 7 (1.72%) PowerApps
11 6 (1.48%) Amazon Glacier
12 5 (1.23%) Amazon SQS
12 5 (1.23%) AWS CloudFormation
13 3 (0.74%) Azure Data Factory
13 3 (0.74%) Dynamics 365
13 3 (0.74%) Office 365
14 2 (0.49%) Amazon ECS
Communications & Networking
1 17 (4.19%) HTTP
2 5 (1.23%) DKIM
3 2 (0.49%) Intranet
3 2 (0.49%) TCP/IP
4 1 (0.25%) DPNSS
4 1 (0.25%) Kerberos
4 1 (0.25%) NAS
4 1 (0.25%) Peer-to-Peer Networking
4 1 (0.25%) Q.931
4 1 (0.25%) Skype
Database & Business Intelligence
1 55 (13.55%) SQL Server
2 52 (12.81%) NoSQL
3 45 (11.08%) Data Warehouse
4 38 (9.36%) Relational Database
5 30 (7.39%) Big Data
6 23 (5.67%) Power BI
7 17 (4.19%) Azure SQL Database
7 17 (4.19%) MongoDB
8 15 (3.69%) Data Lake
8 15 (3.69%) Hadoop
9 14 (3.45%) Amazon Redshift
9 14 (3.45%) RDBMS
9 14 (3.45%) SQL Server Integration Services
10 13 (3.20%) Oracle Database
11 12 (2.96%) BigQuery
11 12 (2.96%) Qlik Sense
12 11 (2.71%) Apache Cassandra
12 11 (2.71%) MySQL
13 10 (2.46%) Amazon RDS
14 9 (2.22%) QlikView
Development Applications
1 49 (12.07%) Git (software)
2 27 (6.65%) Jenkins
3 20 (4.93%) JIRA
4 19 (4.68%) webpack
5 13 (3.20%) Ant
6 12 (2.96%) GitLab
7 10 (2.46%) Bitbucket
8 9 (2.22%) Oracle Forms
8 9 (2.22%) Visual Studio
9 8 (1.97%) JUnit
10 7 (1.72%) Maven
11 6 (1.48%) Axure RP
11 6 (1.48%) git-flow
11 6 (1.48%) Gradle
11 6 (1.48%) JMeter
11 6 (1.48%) Mockito
11 6 (1.48%) Oracle APEX
11 6 (1.48%) Subversion
12 4 (0.99%) ERwin
12 4 (0.99%) Sonatype Nexus
General
1 119 (29.31%) Finance
2 52 (12.81%) Banking
3 49 (12.07%) Public Sector
4 39 (9.61%) Front Office
5 17 (4.19%) Investment Banking
6 15 (3.69%) Legal
7 12 (2.96%) Games
8 9 (2.22%) Publishing
9 8 (1.97%) Manufacturing
10 7 (1.72%) Marketing
11 6 (1.48%) Local Government
11 6 (1.48%) Retail
11 6 (1.48%) Telecoms
12 5 (1.23%) Electronics
13 3 (0.74%) Back Office
14 2 (0.49%) Financial Institution
14 2 (0.49%) Law
15 1 (0.25%) Multimedia
15 1 (0.25%) Pharmaceutical
15 1 (0.25%) Retail Banking
Job Titles
1 161 (39.66%) Developer
2 50 (12.32%) Java Developer
3 48 (11.82%) Analyst
4 40 (9.85%) Senior Developer
5 31 (7.64%) Architect
6 30 (7.39%) Data Engineer
7 24 (5.91%) Business Analyst
8 23 (5.67%) Consultant
9 21 (5.17%) Data Analyst
10 18 (4.43%) Python Developer
10 18 (4.43%) Senior Java Developer
11 16 (3.94%) Digital Developer
12 15 (3.69%) DBA
13 13 (3.20%) Data Architect
14 12 (2.96%) Algorithmic Trading Developer
14 12 (2.96%) Java Developer - Algorithmic Trading
15 11 (2.71%) AWS Engineer
15 11 (2.71%) Node.js Developer
16 10 (2.46%) Python Engineer
16 10 (2.46%) Senior Algorithmic Trading Developer
Libraries, Frameworks & Software Standards
1 50 (12.32%) CSS
2 49 (12.07%) HTML
3 43 (10.59%) Web Services
4 40 (9.85%) HTML5
5 29 (7.14%) React
6 27 (6.65%) JSON
7 26 (6.40%) REST
8 20 (4.93%) Kafka
8 20 (4.93%) Node.js
8 20 (4.93%) Redux
9 19 (4.68%) FIX Protocol
9 19 (4.68%) Jest
10 17 (4.19%) .NET
10 17 (4.19%) GraphQL
11 15 (3.69%) jQuery
12 14 (3.45%) Spring
13 13 (3.20%) PySpark
13 13 (3.20%) SOAP
14 12 (2.96%) .NET Framework
15 11 (2.71%) CSS3
Miscellaneous
1 80 (19.70%) Algorithms
2 77 (18.97%) Analytical Skills
3 46 (11.33%) User Experience
4 32 (7.88%) Foreign Exchange (FX)
5 26 (6.40%) Management Information System
6 19 (4.68%) Enterprise Software
7 12 (2.96%) Equities
8 11 (2.71%) Fixed Income
9 8 (1.97%) Self-Motivation
10 7 (1.72%) Mobile App
11 6 (1.48%) Mobile Payment
12 5 (1.23%) NHS
13 4 (0.99%) Blog
13 4 (0.99%) Data Protection Act
13 4 (0.99%) Derivative
13 4 (0.99%) FMCG
13 4 (0.99%) Greenfield Project
13 4 (0.99%) Mobile Games
13 4 (0.99%) Pricing Data
14 3 (0.74%) Cloud Native
Operating Systems
1 54 (13.30%) Linux
2 14 (3.45%) Unix
3 13 (3.20%) Windows
4 7 (1.72%) Android
5 6 (1.48%) Oracle Linux
6 5 (1.23%) Apple iOS
7 1 (0.25%) DC/OS
7 1 (0.25%) Windows Server
7 1 (0.25%) Windows Server 2008
7 1 (0.25%) Windows Server 2012
Processes & Methodologies
1 150 (36.95%) Agile Software Development
2 84 (20.69%) Analytics
3 83 (20.44%) Business Intelligence
3 83 (20.44%) OO
4 78 (19.21%) Data Modelling
5 71 (17.49%) Problem-Solving
6 61 (15.02%) Computer Science
7 54 (13.30%) Multithreading
8 52 (12.81%) Visualisation
9 49 (12.07%) TDD
10 48 (11.82%) ETL
11 42 (10.34%) OOD
12 41 (10.10%) Open Source
13 37 (9.11%) Migration
14 32 (7.88%) Continuous Integration
15 31 (7.64%) Data Analysis
15 31 (7.64%) Multithreaded Programming
16 30 (7.39%) Test Automation
17 28 (6.90%) Algorithmic Trading
17 28 (6.90%) Data Science
Programming Languages
1 145 (35.71%) SQL
2 105 (25.86%) Java
3 86 (21.18%) Python
4 84 (20.69%) JavaScript
5 38 (9.36%) C#
6 23 (5.67%) Scala
7 21 (5.17%) TypeScript
8 18 (4.43%) ES6
9 15 (3.69%) C++
9 15 (3.69%) Go
10 11 (2.71%) Kotlin
11 10 (2.46%) Java 8
12 9 (2.22%) T-SQL
13 8 (1.97%) PL/SQL
14 5 (1.23%) ABAP
14 5 (1.23%) Apex Code
14 5 (1.23%) Clojure
14 5 (1.23%) Groovy
15 4 (0.99%) C
15 4 (0.99%) R
Qualifications
1 53 (13.05%) Security Cleared
2 43 (10.59%) SC Cleared
3 31 (7.64%) Degree
4 16 (3.94%) Computer Science Degree
5 14 (3.45%) CISM
6 8 (1.97%) ISEB
7 7 (1.72%) Master's Degree
8 4 (0.99%) BPSS Clearance
9 2 (0.49%) DBS Check
9 2 (0.49%) ITIL Certification
9 2 (0.49%) Microsoft Certification
9 2 (0.49%) Numerate Degree
9 2 (0.49%) SAP Certification
10 1 (0.25%) CTC Cleared
10 1 (0.25%) DV Cleared
10 1 (0.25%) ISEB Practitioner
10 1 (0.25%) PhD
Quality Assurance & Compliance
1 30 (7.39%) Data Quality
2 15 (3.69%) GDPR
2 15 (3.69%) QA
3 14 (3.45%) COBIT
4 4 (0.99%) PMO
4 4 (0.99%) Sarbanes-Oxley
5 2 (0.49%) SLA
6 1 (0.25%) GxP
6 1 (0.25%) IFRS
6 1 (0.25%) MiFID
6 1 (0.25%) WCAG
System Software
1 33 (8.13%) Docker
2 3 (0.74%) HDFS
3 1 (0.25%) Active Directory
3 1 (0.25%) DFS Replication
3 1 (0.25%) Oracle Clusterware
3 1 (0.25%) Oracle RAC
Systems Management
1 32 (7.88%) Kubernetes
2 20 (4.93%) Terraform
3 2 (0.49%) Ansible
3 2 (0.49%) Control-M
3 2 (0.49%) Puppet
4 1 (0.25%) Apache Brooklyn
4 1 (0.25%) Data Guard
4 1 (0.25%) Galera Cluster
4 1 (0.25%) Marathon
4 1 (0.25%) Mesos
4 1 (0.25%) Opscode Chef
4 1 (0.25%) Oracle Flashback
4 1 (0.25%) Oracle RMAN
4 1 (0.25%) SCCM
4 1 (0.25%) Tivoli
Vendors
1 56 (13.79%) Oracle
2 45 (11.08%) Microsoft
3 25 (6.16%) SAP
4 19 (4.68%) Tableau
5 18 (4.43%) Talend
6 12 (2.96%) Informatica
7 11 (2.71%) Google
7 11 (2.71%) Salesforce.com
8 10 (2.46%) Databricks
9 6 (1.48%) Adobe
9 6 (1.48%) TIBCO
10 5 (1.23%) DevExpress
10 5 (1.23%) hybris
10 5 (1.23%) Lotus
11 4 (0.99%) Ab Initio
11 4 (0.99%) Infor
11 4 (0.99%) Kronos
12 3 (0.74%) Northgate
12 3 (0.74%) ServiceNow
12 3 (0.74%) Teradata