Period
to 14 October 2019

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 14 October 2019 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
14 Oct 2019
Same period 2018 Same period 2017
Rank 342 356 284
Rank change year-on-year +14 -72 +127
Contract jobs citing Data Structures 606 734 921
As % of all contract IT jobs advertised in the UK 0.71% 0.72% 0.94%
As % of the Miscellaneous category 2.27% 2.21% 2.83%
Number of daily rates quoted 403 454 640
UK median daily rate £525 £500 £450
Median daily rate % change year-on-year +5.00% +11.11% +5.88%
10th Percentile £350 £360 £363
90th Percentile £710 £700 £650
UK excluding London median daily rate £450 £425 £413
% change year-on-year +5.88% +3.03% +10.00%
Number of hourly rates quoted 12 9 12
UK median hourly rate £46.25 £42.19 £35.00
Median hourly rate % change year-on-year +9.62% +20.54% +144.84%
10th Percentile £31.73 £33.67 £27.00
90th Percentile £72.50 £52.50 £49.00
UK excluding London median hourly rate £45.00 £44.75 £35.00
% change year-on-year +0.56% +27.86% +180.00%

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 26,741 33,206 32,577
As % of all contract IT jobs advertised in the UK 31.31% 32.49% 33.10%
Number of daily rates quoted 16,960 21,506 21,274
UK median daily rate £475 £475 £450
Median daily rate % change year-on-year - +5.56% +5.88%
10th Percentile £263 £275 £263
90th Percentile £670 £656 £650
UK excluding London median daily rate £425 £420 £400
% change year-on-year +1.19% +5.00% +3.23%
Number of hourly rates quoted 1,040 1,051 1,007
UK median hourly rate £21.50 £20.00 £20.00
Median hourly rate % change year-on-year +7.50% - -
10th Percentile £11.63 £12.25 £11.25
90th Percentile £53.75 £50.00 £48.75
UK excluding London median hourly rate £20.50 £18.99 £20.00
% change year-on-year +7.94% -5.04% -3.87%

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 14 October 2019.

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 14 October 2019.

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 14 October 2019. 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 +27 582 £525 +5.00% 244
London +1 369 £550 +1.85% 147
UK excluding London +17 227 £450 +5.88% 103
South East +42 86 £450 +4.35% 22
East of England +35 42 £475 +5.56% 13
North of England +24 31 £381 +1.67% 25
South West -2 31 £481 +10.32% 19
Scotland +1 18 £450 +20.00% 4
Midlands +34 17 £375 -3.85% 18
Yorkshire +38 15 £395 -16.84% 7
East Midlands +24 13 £291 -23.55% 9
North West -2 12 £350 -3.45% 17
West Midlands +30 4 £463 +10.12% 9
North East +21 4 £325 +44.44% 1
Wales +26 2 £400 -11.11% 2
Northern Ireland +4 2 - -

For the 6 months to 14 October 2019, 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.

1 228 (37.62%) Agile Software Development
2 221 (36.47%) SQL
3 198 (32.67%) Java
4 175 (28.88%) Algorithms
5 148 (24.42%) Python
6 145 (23.93%) Data Modelling
6 145 (23.93%) Finance
7 123 (20.30%) JavaScript
8 116 (19.14%) OO
9 109 (17.99%) Analytics
10 104 (17.16%) AWS
11 103 (17.00%) Business Intelligence
12 101 (16.67%) Analytical Skills
13 100 (16.50%) Degree
14 99 (16.34%) ETL
15 95 (15.68%) Apache Spark
15 95 (15.68%) DevOps
16 94 (15.51%) Problem-Solving
17 92 (15.18%) Linux
18 90 (14.85%) Data Warehouse
18 90 (14.85%) SQL Server
19 87 (14.36%) NoSQL
20 85 (14.03%) Data Science
21 84 (13.86%) Oracle
22 83 (13.70%) Big Data
23 78 (12.87%) Computer Science
24 73 (12.05%) Banking
25 71 (11.72%) Test Automation
26 70 (11.55%) Hadoop
27 69 (11.39%) Docker

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 95 (15.68%) Apache Spark
2 19 (3.14%) Apache
3 14 (2.31%) CMS
4 10 (1.65%) Confluence
4 10 (1.65%) Elasticsearch
5 9 (1.49%) Tomcat
6 8 (1.32%) Magnolia
7 7 (1.16%) WebLogic
8 5 (0.83%) Apache Airflow
8 5 (0.83%) Apache Solr
8 5 (0.83%) Jupyter
9 4 (0.66%) Luigi
9 4 (0.66%) SharePoint
10 3 (0.50%) Camunda
11 2 (0.33%) Cloud Foundry
11 2 (0.33%) Ethereum
11 2 (0.33%) Hyperledger
11 2 (0.33%) IBM HTTP Server
11 2 (0.33%) OpenStack
11 2 (0.33%) SharePoint 2010
Applications
1 28 (4.62%) Microsoft Excel
1 28 (4.62%) Microsoft Office
2 9 (1.49%) MS Visio
3 3 (0.50%) Spreadsheet
4 2 (0.33%) Adobe Illustrator
4 2 (0.33%) InfoPath
4 2 (0.33%) InVision
4 2 (0.33%) Sketch
4 2 (0.33%) Zeplin
Business Applications
1 21 (3.47%) SAP ERP
2 11 (1.82%) Oracle Applications
3 10 (1.65%) SAP EWM
3 10 (1.65%) SAP WM
4 5 (0.83%) Dynamics AX
4 5 (0.83%) Oracle Cash Management
4 5 (0.83%) Oracle Payables
4 5 (0.83%) Oracle Receivables
4 5 (0.83%) Sparx Enterprise Architect
5 4 (0.66%) Dynamics NAV
5 4 (0.66%) Oracle EBS
5 4 (0.66%) Oracle Procure-to-Pay
5 4 (0.66%) SAP HCM
6 3 (0.50%) Oracle EBS R12
6 3 (0.50%) Teamcenter
7 2 (0.33%) Cognos TM1
7 2 (0.33%) Dynamics CRM
7 2 (0.33%) SAP CO
7 2 (0.33%) SAP FI
7 2 (0.33%) SAP FI/CO
Cloud Services
1 104 (17.16%) AWS
2 68 (11.22%) Azure
3 59 (9.74%) Power Platform
4 51 (8.42%) GCP
5 39 (6.44%) Amazon S3
6 28 (4.62%) Amazon EMR
7 27 (4.46%) Amazon SQS
8 25 (4.13%) Serverless
9 23 (3.80%) AWS Lambda
10 16 (2.64%) Amazon SageMaker
11 12 (1.98%) Amazon EC2
12 11 (1.82%) PaaS
13 10 (1.65%) Cloud Computing
14 9 (1.49%) AWS CloudFormation
15 8 (1.32%) Dynamics 365
15 8 (1.32%) npm
16 7 (1.16%) Amazon Kinesis
16 7 (1.16%) SaaS
17 6 (0.99%) Amazon ECS
18 5 (0.83%) SuccessFactors
Communications & Networking
1 11 (1.82%) Multicast
1 11 (1.82%) RFID
2 4 (0.66%) SSH
3 3 (0.50%) VoIP
4 2 (0.33%) HTTP
4 2 (0.33%) LAN
4 2 (0.33%) Peer-to-Peer Networking
4 2 (0.33%) VPN
4 2 (0.33%) WAN
5 1 (0.17%) ATM
5 1 (0.17%) Cisco ASA
5 1 (0.17%) Cisco Nexus
5 1 (0.17%) DNS
5 1 (0.17%) Ethernet
5 1 (0.17%) Firewall
5 1 (0.17%) Q.931
5 1 (0.17%) QSIG
5 1 (0.17%) Skype
5 1 (0.17%) TCP/IP
5 1 (0.17%) xDSL
Database & Business Intelligence
1 90 (14.85%) Data Warehouse
1 90 (14.85%) SQL Server
2 87 (14.36%) NoSQL
3 83 (13.70%) Big Data
4 70 (11.55%) Hadoop
5 61 (10.07%) Relational Database
6 59 (9.74%) Power BI
7 47 (7.76%) MySQL
8 46 (7.59%) Apache Hive
9 45 (7.43%) Amazon Redshift
10 34 (5.61%) MongoDB
11 33 (5.45%) PostgreSQL
12 29 (4.79%) Amazon Aurora
13 27 (4.46%) SQL Server Integration Services
14 22 (3.63%) BusinessObjects
15 21 (3.47%) Data Lake
16 20 (3.30%) Apache Cassandra
17 19 (3.14%) SQL Server Reporting Services
18 16 (2.64%) Snowflake Schema
19 14 (2.31%) Redis
Development Applications
1 65 (10.73%) Git (software)
2 48 (7.92%) Jenkins
3 23 (3.80%) Sonatype Nexus
4 20 (3.30%) JUnit
5 19 (3.14%) JIRA
6 14 (2.31%) TeamCity
7 13 (2.15%) Maven
8 12 (1.98%) Visual Studio Team System
9 11 (1.82%) Artifactory
9 11 (1.82%) Visual Studio
10 10 (1.65%) Selenium
11 9 (1.49%) Cucumber
11 9 (1.49%) Mocha
11 9 (1.49%) SpecFlow
11 9 (1.49%) Subversion
11 9 (1.49%) WebDriver
12 7 (1.16%) Gradle
12 7 (1.16%) SQL Server Management Studio (SSMS)
13 6 (0.99%) CircleCI
13 6 (0.99%) webpack
General
1 145 (23.93%) Finance
2 73 (12.05%) Banking
3 44 (7.26%) Front Office
4 28 (4.62%) Manufacturing
5 27 (4.46%) Public Sector
6 23 (3.80%) Investment Banking
7 22 (3.63%) Pharmaceutical
8 21 (3.47%) Retail
9 17 (2.81%) Telecoms
10 12 (1.98%) Marketing
11 11 (1.82%) Games
12 10 (1.65%) Electronics
13 9 (1.49%) Financial Institution
13 9 (1.49%) Legal
14 8 (1.32%) Law
15 5 (0.83%) Billing
15 5 (0.83%) General Ledger
16 3 (0.50%) Military
17 2 (0.33%) Advertising
17 2 (0.33%) Publishing
Job Titles
1 258 (42.57%) Developer
2 102 (16.83%) Java Developer
3 85 (14.03%) Analyst
4 82 (13.53%) Data Engineer
5 51 (8.42%) Senior Developer
6 44 (7.26%) Architect
7 36 (5.94%) Data Analyst
8 35 (5.78%) Senior Java Developer
9 34 (5.61%) Consultant
10 32 (5.28%) JavaScript Developer
11 30 (4.95%) Data Architect
12 24 (3.96%) Business Analyst
12 24 (3.96%) Python Engineer
13 21 (3.47%) Software Engineer
14 19 (3.14%) Functional Consultant
15 17 (2.81%) Software Developer
16 15 (2.48%) .NET Developer
16 15 (2.48%) Python Developer
17 14 (2.31%) C# Developer
17 14 (2.31%) Investment Banking Java Developer
Libraries, Frameworks & Software Standards
1 58 (9.57%) HTML
1 58 (9.57%) REST
2 54 (8.91%) Web Services
3 47 (7.76%) Kafka
4 45 (7.43%) CSS
5 42 (6.93%) Spring
6 41 (6.77%) .NET
7 40 (6.60%) XML
8 39 (6.44%) Node.js
9 37 (6.11%) HTML5
10 26 (4.29%) JSON
11 22 (3.63%) AngularJS
12 21 (3.47%) SOAP
12 21 (3.47%) Spring Boot
13 19 (3.14%) React
14 16 (2.64%) FIX Protocol
14 16 (2.64%) RESTful
15 15 (2.48%) LAMP
15 15 (2.48%) MLlib
16 14 (2.31%) Play Framework
Miscellaneous
1 175 (28.88%) Algorithms
2 101 (16.67%) Analytical Skills
3 41 (6.77%) Equities
4 30 (4.95%) User Experience
5 24 (3.96%) Derivative
6 23 (3.80%) Greenfield Project
7 22 (3.63%) Life Science
8 19 (3.14%) Foreign Exchange (FX)
9 15 (2.48%) Management Information System
9 15 (2.48%) Self-Motivation
10 14 (2.31%) LIMS
11 13 (2.15%) Linux Command Line
12 11 (1.82%) Fixed Income
13 8 (1.32%) CMDB
13 8 (1.32%) Public Cloud
13 8 (1.32%) Video on Demand
13 8 (1.32%) Video\Live Streaming
14 7 (1.16%) Cloud Native
15 6 (0.99%) Hedge funds
15 6 (0.99%) Reference Data
Operating Systems
1 92 (15.18%) Linux
2 30 (4.95%) Unix
3 25 (4.13%) Windows
4 10 (1.65%) Android
5 8 (1.32%) Apple iOS
5 8 (1.32%) Oracle Linux
6 5 (0.83%) Red Hat Enterprise Linux
7 4 (0.66%) CentOS
8 1 (0.17%) Ubuntu
8 1 (0.17%) Windows Server
Processes & Methodologies
1 228 (37.62%) Agile Software Development
2 145 (23.93%) Data Modelling
3 116 (19.14%) OO
4 109 (17.99%) Analytics
5 103 (17.00%) Business Intelligence
6 99 (16.34%) ETL
7 95 (15.68%) DevOps
8 94 (15.51%) Problem-Solving
9 85 (14.03%) Data Science
10 78 (12.87%) Computer Science
11 71 (11.72%) Test Automation
12 68 (11.22%) Data Analysis
13 67 (11.06%) Software Engineering
14 66 (10.89%) Continuous Integration
14 66 (10.89%) Scrum
14 66 (10.89%) TDD
15 63 (10.40%) Machine Learning
16 55 (9.08%) Microservices
16 55 (9.08%) Migration
17 45 (7.43%) Multithreading
Programming Languages
1 221 (36.47%) SQL
2 198 (32.67%) Java
3 148 (24.42%) Python
4 123 (20.30%) JavaScript
5 61 (10.07%) Scala
6 57 (9.41%) C++
7 45 (7.43%) C#
8 39 (6.44%) Java 8
9 28 (4.62%) TypeScript
10 27 (4.46%) Go
10 27 (4.46%) R
11 22 (3.63%) T-SQL
12 17 (2.81%) PL/SQL
13 13 (2.15%) C
14 11 (1.82%) Clojure
14 11 (1.82%) Kotlin
15 9 (1.49%) PowerShell
16 8 (1.32%) Bash Shell
16 8 (1.32%) Groovy
16 8 (1.32%) VBA
Qualifications
1 100 (16.50%) Degree
2 48 (7.92%) Security Cleared
3 43 (7.10%) SC Cleared
4 40 (6.60%) Computer Science Degree
5 10 (1.65%) PhD
6 8 (1.32%) TOGAF Certification
7 5 (0.83%) Master's Degree
8 4 (0.66%) DV Cleared
8 4 (0.66%) HNC
8 4 (0.66%) Numerate Degree
9 3 (0.50%) ISEB
10 2 (0.33%) BC Cleared
10 2 (0.33%) BPSS Clearance
10 2 (0.33%) ISTQB
11 1 (0.17%) CBAP
11 1 (0.17%) HND
11 1 (0.17%) ISEB Practitioner
11 1 (0.17%) ITIL Certification
11 1 (0.17%) PMI Certification
11 1 (0.17%) PMP
Quality Assurance & Compliance
1 29 (4.79%) Data Quality
2 22 (3.63%) QA
3 11 (1.82%) GDPR
4 4 (0.66%) Sarbanes-Oxley
5 2 (0.33%) Dublin Core
6 1 (0.17%) Disclosure Scotland
6 1 (0.17%) EMIR
6 1 (0.17%) GAAP
6 1 (0.17%) IFRS
6 1 (0.17%) MiFID
6 1 (0.17%) SLA
System Software
1 69 (11.39%) Docker
2 11 (1.82%) HDFS
3 4 (0.66%) Oracle RAC
4 3 (0.50%) Apache Flume
5 2 (0.33%) Virtual Machines
6 1 (0.17%) VirtualBox
Systems Management
1 36 (5.94%) Kubernetes
2 18 (2.97%) Terraform
3 12 (1.98%) Ansible
4 4 (0.66%) Hadoop YARN
5 3 (0.50%) Data Guard
5 3 (0.50%) Grafana
5 3 (0.50%) Kibana
5 3 (0.50%) Puppet
6 2 (0.33%) Control-M
6 2 (0.33%) EMC NetWorker
6 2 (0.33%) Opscode Chef
6 2 (0.33%) Oracle RMAN
6 2 (0.33%) Packer
6 2 (0.33%) Single Sign-On
6 2 (0.33%) Tivoli Storage Manager
7 1 (0.17%) HAProxy
7 1 (0.17%) Prometheus
Vendors
1 84 (13.86%) Oracle
2 66 (10.89%) Microsoft
3 42 (6.93%) SAP
4 38 (6.27%) Google
5 27 (4.46%) Tableau
6 17 (2.81%) LabWare
6 17 (2.81%) Talend
7 13 (2.15%) hybris
8 12 (1.98%) Informatica
8 12 (1.98%) Solace
9 10 (1.65%) Salesforce.com
10 9 (1.49%) Cypress Semiconductor
10 9 (1.49%) TIBCO
11 8 (1.32%) ComArch
11 8 (1.32%) MicroStrategy
11 8 (1.32%) Remedy
11 8 (1.32%) Siemens
12 7 (1.16%) Teradata
13 6 (0.99%) Cognos
14 5 (0.83%) Minitab