Period
to 25 January 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 25 January 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
25 Jan 2020
Same period 2019 Same period 2018
Rank 315 318 302
Rank change year-on-year +3 -16 +77
Contract jobs citing Data Structures 552 821 872
As % of all contract IT jobs advertised in the UK 0.77% 0.83% 0.87%
As % of the Miscellaneous category 2.47% 2.57% 2.63%
Number of daily rates quoted 346 534 611
UK median daily rate £515 £500 £475
Median daily rate % change year-on-year +3.00% +5.26% +1.50%
10th Percentile £353 £363 £360
90th Percentile £700 £713 £680
UK excluding London median daily rate £475 £425 £430
% change year-on-year +11.76% -1.16% +1.18%
Number of hourly rates quoted 12 6 16
UK median hourly rate £40.00 £38.30 £54.00
Median hourly rate % change year-on-year +4.45% -29.08% +66.15%
10th Percentile £31.73 £37.09 £27.00
90th Percentile £73.75 £42.19 £80.73
UK excluding London median hourly rate £40.00 £39.50 £51.50
% change year-on-year +1.27% -23.30% +30.38%

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 22,334 31,985 33,144
As % of all contract IT jobs advertised in the UK 31.19% 32.14% 32.95%
Number of daily rates quoted 14,057 20,851 22,027
UK median daily rate £450 £475 £450
Median daily rate % change year-on-year -5.26% +5.56% +5.88%
10th Percentile £250 £275 £258
90th Percentile £675 £650 £650
UK excluding London median daily rate £425 £425 £400
% change year-on-year - +6.25% +2.56%
Number of hourly rates quoted 1,002 1,010 992
UK median hourly rate £24.50 £20.60 £21.00
Median hourly rate % change year-on-year +18.96% -1.93% +5.00%
10th Percentile £12.44 £12.00 £11.35
90th Percentile £53.75 £48.75 £48.24
UK excluding London median hourly rate £23.50 £20.00 £20.00
% change year-on-year +17.50% - +4.68%

Data Structures
Job Vacancy Trend

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

Job vacancy trend for Data Structures in the UK

Data Structures
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Data Structures.

Contractor daily rate trend for Data Structures in the UK

Data Structures
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Data Structures over the 6 months to 25 January 2020.

Contractor daily rate histogram for Data Structures in the UK

Data Structures
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Data Structures.

Contractor hourly rate trend for Data Structures in the UK

Data Structures
Contractor Hourly Rate Histogram

The hourly rate distribution of IT jobs citing Data Structures over the 6 months to 25 January 2020.

Contractor 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 25 January 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 +3 524 £520 +4.00% 295
London +12 322 £550 -1.79% 184
UK excluding London +25 225 £475 +11.76% 127
South East +52 87 £500 +10.38% 21
East of England +34 42 £425 -2.86% 10
North of England +23 32 £475 +11.76% 36
South West +15 29 £475 +8.57% 20
North West +24 21 £500 +33.33% 20
Midlands +18 15 £300 -27.27% 24
East Midlands +10 11 £281 -29.75% 7
Scotland +10 10 £350 -7.89% 11
Wales +35 7 £465 +4.20% 5
Yorkshire +29 6 £369 -18.96% 14
Northern Ireland +14 6 £490 -
North East +18 5 £325 -7.14% 2
West Midlands +27 4 £513 +24.24% 17

For the 6 months to 25 January 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.

1 218 (39.49%) Agile Software Development
2 211 (38.22%) SQL
3 157 (28.44%) Java
4 137 (24.82%) Finance
5 132 (23.91%) OO
6 127 (23.01%) Algorithms
7 122 (22.10%) Analytical Skills
8 114 (20.65%) JavaScript
9 112 (20.29%) Analytics
10 104 (18.84%) Problem-Solving
10 104 (18.84%) Business Intelligence
11 102 (18.48%) Python
12 98 (17.75%) Oracle
13 97 (17.57%) ETL
13 97 (17.57%) AWS
14 95 (17.21%) Computer Science
15 92 (16.67%) Data Modelling
16 89 (16.12%) Microsoft
17 83 (15.04%) SQL Server
17 83 (15.04%) Linux
17 83 (15.04%) Degree
17 83 (15.04%) Azure
17 83 (15.04%) Test Automation
18 80 (14.49%) Security Cleared
19 76 (13.77%) Data Warehouse
20 74 (13.41%) NoSQL
21 71 (12.86%) SC Cleared
22 66 (11.96%) Web Services
23 65 (11.78%) Migration
24 63 (11.41%) Visualisation

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 45 (8.15%) Apache Spark
2 18 (3.26%) Apache
3 15 (2.72%) WebLogic
4 12 (2.17%) Tomcat
5 11 (1.99%) Apache Airflow
6 9 (1.63%) Cloud Foundry
7 8 (1.45%) Confluence
7 8 (1.45%) WebSphere
8 6 (1.09%) Elasticsearch
9 5 (0.91%) BizTalk Server
9 5 (0.91%) Luigi
9 5 (0.91%) SAS
9 5 (0.91%) SharePoint
10 3 (0.54%) Camunda
10 3 (0.54%) Jupyter
10 3 (0.54%) MQSeries
11 2 (0.36%) CMS
11 2 (0.36%) Ethereum
11 2 (0.36%) Hyperledger
11 2 (0.36%) OpenStack
Applications
1 27 (4.89%) Microsoft Office
2 26 (4.71%) Microsoft Excel
3 9 (1.63%) MS Visio
4 2 (0.36%) Spreadsheet
5 1 (0.18%) Microsoft PowerPoint
5 1 (0.18%) SPSS
5 1 (0.18%) Stata
Business Applications
1 10 (1.81%) Oracle Applications
2 7 (1.27%) Dynamics AX
3 6 (1.09%) Dynamics CRM
4 5 (0.91%) SAP ERP
5 4 (0.72%) SAP HCM
6 3 (0.54%) FINCAD Analytics
6 3 (0.54%) SAP EWM
6 3 (0.54%) SAP WM
6 3 (0.54%) Sparx Enterprise Architect
7 2 (0.36%) Distributed Ledger
7 2 (0.36%) Maximo
7 2 (0.36%) Oracle EBS
7 2 (0.36%) Oracle Financials
7 2 (0.36%) R3 Corda
7 2 (0.36%) SAP HR
7 2 (0.36%) Teamcenter
8 1 (0.18%) Infor M3
8 1 (0.18%) SAP MDM
8 1 (0.18%) SAP MM
8 1 (0.18%) SAP Oil and Gas
Cloud Services
1 97 (17.57%) AWS
2 83 (15.04%) Azure
3 47 (8.51%) Power Platform
4 42 (7.61%) GCP
5 19 (3.44%) Amazon S3
6 15 (2.72%) AWS Lambda
6 15 (2.72%) Serverless
7 14 (2.54%) Heroku
8 13 (2.36%) Amazon EMR
9 11 (1.99%) Amazon SQS
10 9 (1.63%) Amazon EC2
10 9 (1.63%) Cloud Computing
11 7 (1.27%) GitHub
12 6 (1.09%) AWS CloudFormation
12 6 (1.09%) AWS Step Functions
12 6 (1.09%) Dynamics 365
12 6 (1.09%) PaaS
13 5 (0.91%) Amazon Kinesis
13 5 (0.91%) npm
14 4 (0.72%) Virtual Private Cloud
Communications & Networking
1 14 (2.54%) HTTP
2 13 (2.36%) Multicast
3 4 (0.72%) RFID
4 2 (0.36%) Intranet
4 2 (0.36%) Peer-to-Peer Networking
4 2 (0.36%) VPN
5 1 (0.18%) ATM
5 1 (0.18%) Cisco ASA
5 1 (0.18%) Cisco Nexus
5 1 (0.18%) Firewall
5 1 (0.18%) ISDN
5 1 (0.18%) Kerberos
5 1 (0.18%) LAN
5 1 (0.18%) NAS
5 1 (0.18%) Q.931
5 1 (0.18%) QSIG
5 1 (0.18%) Skype
5 1 (0.18%) SSH
5 1 (0.18%) TCP/IP
5 1 (0.18%) xDSL
Database & Business Intelligence
1 83 (15.04%) SQL Server
2 76 (13.77%) Data Warehouse
3 74 (13.41%) NoSQL
4 51 (9.24%) Relational Database
5 45 (8.15%) Power BI
6 43 (7.79%) Big Data
7 35 (6.34%) Hadoop
8 34 (6.16%) SQL Server Integration Services
9 33 (5.98%) Amazon Redshift
10 27 (4.89%) MongoDB
11 25 (4.53%) MySQL
12 22 (3.99%) Oracle Database
13 21 (3.80%) Data Lake
14 18 (3.26%) PostgreSQL
15 17 (3.08%) Apache Cassandra
15 17 (3.08%) Azure SQL Database
16 15 (2.72%) Snowflake Schema
17 14 (2.54%) Oracle Database 12c
17 14 (2.54%) Oracle ODI
18 13 (2.36%) Redis
Development Applications
1 42 (7.61%) Git (software)
2 35 (6.34%) Jenkins
3 24 (4.35%) JUnit
4 20 (3.62%) Maven
5 19 (3.44%) Subversion
6 18 (3.26%) JIRA
7 17 (3.08%) webpack
8 11 (1.99%) Oracle APEX
8 11 (1.99%) TestNG
9 8 (1.45%) Sonatype Nexus
10 7 (1.27%) Visual Studio
11 6 (1.09%) ER Studio
11 6 (1.09%) ERwin
11 6 (1.09%) Gradle
12 5 (0.91%) Ant
12 5 (0.91%) git-flow
12 5 (0.91%) JMeter
12 5 (0.91%) Mockito
12 5 (0.91%) Oracle Forms
13 4 (0.72%) Bitbucket
General
1 137 (24.82%) Finance
2 51 (9.24%) Banking
3 43 (7.79%) Public Sector
4 37 (6.70%) Front Office
5 27 (4.89%) Manufacturing
6 17 (3.08%) Telecoms
7 15 (2.72%) Pharmaceutical
8 14 (2.54%) Games
8 14 (2.54%) Retail
9 12 (2.17%) Marketing
10 11 (1.99%) Investment Banking
11 9 (1.63%) Publishing
12 8 (1.45%) Electronics
12 8 (1.45%) Local Government
13 7 (1.27%) Law
14 3 (0.54%) Back Office
15 2 (0.36%) Financial Institution
16 1 (0.18%) Military
16 1 (0.18%) Retail Banking
Job Titles
1 252 (45.65%) Developer
2 74 (13.41%) Java Developer
2 74 (13.41%) Senior Developer
3 67 (12.14%) Analyst
4 55 (9.96%) Data Engineer
5 35 (6.34%) Senior Java Developer
6 30 (5.43%) Data Analyst
7 29 (5.25%) Architect
8 25 (4.53%) Business Analyst
9 24 (4.35%) Digital Developer
10 23 (4.17%) Consultant
11 19 (3.44%) React Developer
12 18 (3.26%) Data Architect
12 18 (3.26%) SQL Developer
13 16 (2.90%) Java Engineer
14 15 (2.72%) Senior React Developer
15 14 (2.54%) .NET Developer
15 14 (2.54%) JavaScript Developer
15 14 (2.54%) Python Developer
16 13 (2.36%) Data Manager
Libraries, Frameworks & Software Standards
1 66 (11.96%) Web Services
2 53 (9.60%) HTML
3 51 (9.24%) CSS
4 44 (7.97%) XML
5 43 (7.79%) REST
6 37 (6.70%) HTML5
7 34 (6.16%) .NET
8 33 (5.98%) Kafka
9 30 (5.43%) Spring
10 28 (5.07%) Node.js
11 26 (4.71%) AngularJS
11 26 (4.71%) JSON
12 24 (4.35%) React
13 23 (4.17%) FIX Protocol
13 23 (4.17%) RESTful
14 21 (3.80%) SOAP
15 19 (3.44%) Redux
16 17 (3.08%) D3.js
17 15 (2.72%) Oracle Fusion
18 14 (2.54%) GraphQL
Miscellaneous
1 127 (23.01%) Algorithms
2 122 (22.10%) Analytical Skills
3 48 (8.70%) User Experience
4 23 (4.17%) Equities
4 23 (4.17%) Foreign Exchange (FX)
5 21 (3.80%) Management Information System
6 17 (3.08%) Derivative
7 15 (2.72%) LIMS
7 15 (2.72%) Self-Motivation
8 13 (2.36%) Greenfield Project
9 9 (1.63%) CMDB
9 9 (1.63%) Fixed Income
10 8 (1.45%) Enterprise Software
10 8 (1.45%) Grid Computing
11 7 (1.27%) Data Protection Act
11 7 (1.27%) Linux Command Line
11 7 (1.27%) Mobile App
11 7 (1.27%) Reference Data
12 6 (1.09%) Video on Demand
12 6 (1.09%) Video\Live Streaming
Operating Systems
1 83 (15.04%) Linux
2 30 (5.43%) Windows
3 14 (2.54%) Oracle Linux
4 12 (2.17%) Android
4 12 (2.17%) Apple iOS
4 12 (2.17%) Unix
5 4 (0.72%) CentOS
5 4 (0.72%) Red Hat Enterprise Linux
6 2 (0.36%) Windows Server
6 2 (0.36%) Windows Server 2008
6 2 (0.36%) Windows Server 2012
7 1 (0.18%) Ubuntu
Processes & Methodologies
1 218 (39.49%) Agile Software Development
2 132 (23.91%) OO
3 112 (20.29%) Analytics
4 104 (18.84%) Business Intelligence
4 104 (18.84%) Problem-Solving
5 97 (17.57%) ETL
6 95 (17.21%) Computer Science
7 92 (16.67%) Data Modelling
8 83 (15.04%) Test Automation
9 65 (11.78%) Migration
10 63 (11.41%) Visualisation
11 60 (10.87%) Multithreading
12 47 (8.51%) DevOps
13 43 (7.79%) Data Science
14 42 (7.61%) OOD
14 42 (7.61%) TDD
15 41 (7.43%) Continuous Integration
15 41 (7.43%) Data Analysis
16 40 (7.25%) SDLC
17 39 (7.07%) Data Integration
Programming Languages
1 211 (38.22%) SQL
2 157 (28.44%) Java
3 114 (20.65%) JavaScript
4 102 (18.48%) Python
5 56 (10.14%) C#
6 48 (8.70%) C++
7 28 (5.07%) Scala
8 25 (4.53%) Java 8
9 20 (3.62%) Kotlin
9 20 (3.62%) TypeScript
10 15 (2.72%) Go
10 15 (2.72%) PowerShell
10 15 (2.72%) T-SQL
11 14 (2.54%) ES6
11 14 (2.54%) PL/SQL
12 11 (1.99%) R
13 9 (1.63%) C
14 8 (1.45%) Groovy
14 8 (1.45%) Haskell
14 8 (1.45%) PHP
Qualifications
1 83 (15.04%) Degree
2 80 (14.49%) Security Cleared
3 71 (12.86%) SC Cleared
4 27 (4.89%) Computer Science Degree
5 13 (2.36%) ISEB
6 8 (1.45%) Numerate Degree
6 8 (1.45%) TOGAF Certification
7 6 (1.09%) PhD
8 5 (0.91%) BPSS Clearance
8 5 (0.91%) HNC
8 5 (0.91%) ISTQB
9 4 (0.72%) Master's Degree
10 2 (0.36%) ISEB Practitioner
11 1 (0.18%) CTC Cleared
11 1 (0.18%) DBS Check
11 1 (0.18%) DV Cleared
11 1 (0.18%) ITIL Certification
11 1 (0.18%) PMI Certification
11 1 (0.18%) PMP
Quality Assurance & Compliance
1 24 (4.35%) GDPR
2 17 (3.08%) Data Quality
3 12 (2.17%) QA
4 5 (0.91%) Sarbanes-Oxley
5 3 (0.54%) Disclosure Scotland
6 2 (0.36%) PMO
7 1 (0.18%) SLA
System Software
1 34 (6.16%) Docker
2 6 (1.09%) HDFS
3 2 (0.36%) Virtual Machines
4 1 (0.18%) Active Directory
4 1 (0.18%) DFS Replication
4 1 (0.18%) Oracle Clusterware
4 1 (0.18%) Oracle RAC
Systems Management
1 23 (4.17%) Kubernetes
2 21 (3.80%) Terraform
3 5 (0.91%) Ansible
4 4 (0.72%) Puppet
5 3 (0.54%) Opscode Chef
6 2 (0.36%) Data Guard
6 2 (0.36%) HP Quality Center
6 2 (0.36%) Kibana
6 2 (0.36%) Single Sign-On
7 1 (0.18%) Control-M
7 1 (0.18%) Galera Cluster
7 1 (0.18%) HAProxy
7 1 (0.18%) Oracle Flashback
7 1 (0.18%) Oracle RMAN
7 1 (0.18%) Packer
7 1 (0.18%) SCCM
7 1 (0.18%) Tivoli
Vendors
1 98 (17.75%) Oracle
2 89 (16.12%) Microsoft
3 38 (6.88%) SAP
4 24 (4.35%) Talend
5 22 (3.99%) Tableau
6 18 (3.26%) Google
7 17 (3.08%) LabWare
8 15 (2.72%) Informatica
9 13 (2.36%) Solace
10 11 (1.99%) TIBCO
11 10 (1.81%) Ab Initio
11 10 (1.81%) Databricks
11 10 (1.81%) hybris
12 9 (1.63%) Cognos
13 8 (1.45%) ComArch
13 8 (1.45%) Remedy
13 8 (1.45%) Siemens
14 7 (1.27%) Teradata
15 6 (1.09%) MicroStrategy
16 5 (0.91%) Sybase