Period
to 16 January 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 16 January 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
16 Jan 2019
Same period 2018 Same period 2017
Rank 315 287 401
Rank change year-on-year -28 +114 -4
Contract jobs citing Data Structures 827 902 593
As % of all contract IT jobs advertised in the UK 0.83% 0.90% 0.61%
As % of the Miscellaneous category 2.51% 2.69% 1.86%
Number of daily rates quoted 540 637 422
UK median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% -10.00%
10th Percentile £363 £358 £306
90th Percentile £700 £683 £661
UK excluding London median daily rate £425 £430 £425
% change year-on-year -1.16% +1.18% +13.33%
Number of hourly rates quoted 6 16 7
UK median hourly rate £38.30 £54.00 £32.50
Median hourly rate % change year-on-year -29.08% +66.15% +62.50%
10th Percentile £37.09 £27.00 £22.65
90th Percentile £42.19 £80.73 £47.50
UK excluding London median hourly rate £39.50 £51.50 £39.50
% change year-on-year -23.30% +30.38% +22.48%

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 32,898 33,554 31,830
As % of all contract IT jobs advertised in the UK 33.07% 33.47% 32.96%
Number of daily rates quoted 21,646 22,442 20,687
UK median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% -
10th Percentile £280 £263 £250
90th Percentile £650 £650 £625
UK excluding London median daily rate £425 £400 £390
% change year-on-year +6.25% +2.56% +3.31%
Number of hourly rates quoted 992 970 1,124
UK median hourly rate £20.50 £20.66 £20.00
Median hourly rate % change year-on-year -0.75% +3.28% -
10th Percentile £12.00 £11.35 £11.32
90th Percentile £48.75 £48.00 £47.50
UK excluding London median hourly rate £20.00 £20.00 £19.25
% change year-on-year - +3.90% -0.89%

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 16 January 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
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 16 January 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 +7 782 £500 - 312
London +17 501 £555 +0.91% 205
UK excluding London -71 314 £425 -1.16% 116
South East +25 108 £460 +22.67% 29
North of England -24 55 £400 -5.88% 20
Midlands +9 49 £400 -8.57% 14
East of England +13 45 £438 -2.78% 19
Scotland -31 30 £325 -14.47% 7
North West -10 29 £363 -19.44% 10
East Midlands +26 24 £400 -11.11% 10
West Midlands -16 24 £394 -7.35% 4
South West -38 22 £450 +16.13% 25
Yorkshire -26 21 £455 +10.98% 8
North East -2 5 £350 -3.45% 2
Wales -15 4 £446 -5.05% 2
Northern Ireland -31 1 - -

For the 6 months to 16 January 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.

1 304 (36.76%) Agile Software Development
2 299 (36.15%) Algorithms
3 291 (35.19%) SQL
4 218 (26.36%) Finance
5 216 (26.12%) OO
6 210 (25.39%) Java
7 188 (22.73%) JavaScript
8 170 (20.56%) Python
9 156 (18.86%) Computer Science
10 155 (18.74%) Analytical Skills
11 142 (17.17%) Data Modelling
12 141 (17.05%) Problem-Solving
13 129 (15.60%) Git (software)
14 119 (14.39%) Amazon AWS
15 115 (13.91%) TDD
16 110 (13.30%) HTML
17 109 (13.18%) Degree
18 108 (13.06%) SQL Server
18 108 (13.06%) ETL
19 102 (12.33%) OOD
20 100 (12.09%) Business Intelligence
21 99 (11.97%) Data Warehouse
22 98 (11.85%) C#
23 95 (11.49%) Test Automation
24 90 (10.88%) Analytics
24 90 (10.88%) CSS
25 87 (10.52%) User Experience
26 85 (10.28%) REST
27 82 (9.92%) C++
27 82 (9.92%) Redux

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 58 (7.01%) Apache Spark
2 27 (3.26%) Apache
3 19 (2.30%) IPython
4 15 (1.81%) Confluence
5 12 (1.45%) SharePoint
6 10 (1.21%) Apache Pig
6 10 (1.21%) SAS
7 7 (0.85%) CMS
7 7 (0.85%) Elasticsearch
8 5 (0.60%) Apache Solr
8 5 (0.60%) Tomcat
8 5 (0.60%) WebLogic
9 4 (0.48%) IIS
9 4 (0.48%) JBoss
9 4 (0.48%) OpenStack
9 4 (0.48%) WebSphere
10 3 (0.36%) WordPress
11 2 (0.24%) Jupyter
11 2 (0.24%) Mule
11 2 (0.24%) nginx
Applications
1 43 (5.20%) Microsoft Excel
2 9 (1.09%) Microsoft Office
3 8 (0.97%) MS Visio
3 8 (0.97%) Spreadsheet
4 5 (0.60%) Microsoft PowerPoint
5 3 (0.36%) Photoshop
6 2 (0.24%) Adobe Illustrator
6 2 (0.24%) InVision
7 1 (0.12%) Adobe Creative Suite
7 1 (0.12%) Chatbot
7 1 (0.12%) Fireworks
Business Applications
1 8 (0.97%) SAP Oil and Gas
2 6 (0.73%) Infor M3
3 4 (0.48%) Dynamics AX
3 4 (0.48%) SAP MM
3 4 (0.48%) SAP R/3
3 4 (0.48%) SAP S/4HANA
4 3 (0.36%) Dynamics CRM
4 3 (0.36%) Salesforce.com CRM
4 3 (0.36%) SAP FI
4 3 (0.36%) SAP Retail
5 2 (0.24%) Cognos Business Intelligence
5 2 (0.24%) NetSuite
5 2 (0.24%) Oracle EBS
5 2 (0.24%) Remedy ITSM
5 2 (0.24%) SAP CO
5 2 (0.24%) SAP FI/CO
6 1 (0.12%) Oracle ERP
6 1 (0.12%) Oracle Financials
6 1 (0.12%) SAP HR
6 1 (0.12%) SAP SD
Cloud Services
1 119 (14.39%) Amazon AWS
2 73 (8.83%) Microsoft Azure
3 44 (5.32%) GitHub
4 38 (4.59%) Google Cloud Platform
5 23 (2.78%) Heroku
5 23 (2.78%) PaaS
6 21 (2.54%) npm
7 20 (2.42%) SaaS
8 16 (1.93%) Amazon S3
9 14 (1.69%) IaaS
10 9 (1.09%) Yarn
11 8 (0.97%) Dynamics 365
11 8 (0.97%) Google App Engine
12 6 (0.73%) Cloud Computing
13 5 (0.60%) Amazon SQS
13 5 (0.60%) BrowserStack
13 5 (0.60%) iPaaS
13 5 (0.60%) Sauce Labs
14 4 (0.48%) Google Analytics
14 4 (0.48%) OpenShift
Communications & Networking
1 19 (2.30%) HTTP
2 17 (2.06%) TCP/IP
3 6 (0.73%) HTTPS
3 6 (0.73%) Internet
3 6 (0.73%) Kerberos
4 5 (0.60%) VoIP
5 4 (0.48%) BIG-IP
5 4 (0.48%) Firewall
5 4 (0.48%) Intranet
5 4 (0.48%) NetScaler
6 3 (0.36%) SMS
7 2 (0.24%) DNS
7 2 (0.24%) LAN
8 1 (0.12%) AMQP
8 1 (0.12%) Bluetooth
8 1 (0.12%) MQTT
8 1 (0.12%) Skype
8 1 (0.12%) SSH
8 1 (0.12%) WebEx
Database & Business Intelligence
1 108 (13.06%) SQL Server
2 99 (11.97%) Data Warehouse
3 79 (9.55%) Relational Database
4 72 (8.71%) Big Data
5 64 (7.74%) NoSQL
6 57 (6.89%) Hadoop
7 36 (4.35%) Apache Hive
8 33 (3.99%) MySQL
8 33 (3.99%) PostgreSQL
9 32 (3.87%) BusinessObjects
9 32 (3.87%) Data Lake
9 32 (3.87%) Power BI
10 29 (3.51%) SQL Server Integration Services
11 28 (3.39%) Apache Cassandra
12 23 (2.78%) MongoDB
12 23 (2.78%) SQL Server Analysis Services
13 21 (2.54%) SQL Server Reporting Services
14 18 (2.18%) RDBMS
15 17 (2.06%) SQL Server 2008
16 14 (1.69%) SQL Server 2012
Development Applications
1 129 (15.60%) Git (software)
2 50 (6.05%) Jenkins
3 39 (4.72%) JUnit
3 39 (4.72%) webpack
4 28 (3.39%) Maven
5 24 (2.90%) JIRA
6 23 (2.78%) PostCSS
7 20 (2.42%) Visual Studio
8 19 (2.30%) Subversion
9 18 (2.18%) Selenium
10 14 (1.69%) Cucumber
11 13 (1.57%) TeamCity
12 11 (1.33%) Jasmine
13 10 (1.21%) ERwin
14 9 (1.09%) Atlassian Bamboo
14 9 (1.09%) Bitbucket
14 9 (1.09%) Grunt
14 9 (1.09%) gulp
15 8 (0.97%) Hudson
15 8 (0.97%) Team Foundation Server
General
1 218 (26.36%) Finance
2 67 (8.10%) Banking
3 41 (4.96%) Front Office
4 35 (4.23%) Marketing
5 31 (3.75%) Telecoms
6 18 (2.18%) Retail
7 17 (2.06%) Investment Banking
8 15 (1.81%) Games
9 13 (1.57%) Legal
10 11 (1.33%) Manufacturing
11 7 (0.85%) Electronics
12 6 (0.73%) Advertising
13 4 (0.48%) Aerospace
13 4 (0.48%) German Language
13 4 (0.48%) Pharmaceutical
13 4 (0.48%) Retail Banking
14 3 (0.36%) Arabic Language
14 3 (0.36%) Financial Institution
15 2 (0.24%) French Language
15 2 (0.24%) General Ledger
Job Titles
1 459 (55.50%) Developer
2 118 (14.27%) Java Developer
3 100 (12.09%) Analyst
4 75 (9.07%) Architect
5 67 (8.10%) React Developer
6 56 (6.77%) Python Developer
7 54 (6.53%) Senior Developer
8 42 (5.08%) Data Architect
9 36 (4.35%) Data Analyst
10 35 (4.23%) Data Engineer
11 34 (4.11%) Front End Developer (Client-Side Developer)
12 33 (3.99%) Business Analyst
13 29 (3.51%) C# Developer
14 27 (3.26%) SQL Developer
15 24 (2.90%) Quantitative Developer
16 22 (2.66%) JavaScript Developer
17 21 (2.54%) Front Office Developer
17 21 (2.54%) Software Developer
18 20 (2.42%) Business Intelligence Developer
18 20 (2.42%) Consultant
Libraries, Frameworks & Software Standards
1 110 (13.30%) HTML
2 90 (10.88%) CSS
3 85 (10.28%) REST
4 82 (9.92%) Redux
5 79 (9.55%) React
6 73 (8.83%) Node.js
7 67 (8.10%) Spring
8 66 (7.98%) Web Services
9 65 (7.86%) Kafka
10 61 (7.38%) RESTful
11 54 (6.53%) JSON
12 53 (6.41%) SOAP
13 50 (6.05%) .NET
14 49 (5.93%) HTML5
15 45 (5.44%) XML
16 40 (4.84%) AngularJS
17 34 (4.11%) GraphQL
18 27 (3.26%) Flask
18 27 (3.26%) Spring Boot
19 26 (3.14%) jQuery
Miscellaneous
1 299 (36.15%) Algorithms
2 155 (18.74%) Analytical Skills
3 87 (10.52%) User Experience
4 38 (4.59%) Hedge funds
5 32 (3.87%) Mobile App
6 29 (3.51%) Management Information System
7 27 (3.26%) Fixed Income
8 26 (3.14%) Fintech
9 25 (3.02%) Client/Server
10 24 (2.90%) Greenfield Project
10 24 (2.90%) Self-Motivation
11 23 (2.78%) Equities
12 19 (2.30%) Cloud Native
13 18 (2.18%) Derivative
14 17 (2.06%) Data Centre
14 17 (2.06%) Foreign Exchange (FX)
15 11 (1.33%) Public Cloud
16 10 (1.21%) Analytical Mindset
16 10 (1.21%) Credit Derivative
17 9 (1.09%) Private Cloud
Operating Systems
1 78 (9.43%) Linux
2 50 (6.05%) Unix
3 27 (3.26%) Apple iOS
3 27 (3.26%) Windows
4 25 (3.02%) Android
5 4 (0.48%) Red Hat Enterprise Linux
5 4 (0.48%) Windows Server
6 2 (0.24%) DC/OS
6 2 (0.24%) Mac OS
6 2 (0.24%) Mac OS X
6 2 (0.24%) Windows 7
6 2 (0.24%) Windows 8
7 1 (0.12%) CentOS
Processes & Methodologies
1 304 (36.76%) Agile Software Development
2 216 (26.12%) OO
3 156 (18.86%) Computer Science
4 142 (17.17%) Data Modelling
5 141 (17.05%) Problem-Solving
6 115 (13.91%) TDD
7 108 (13.06%) ETL
8 102 (12.33%) OOD
9 100 (12.09%) Business Intelligence
10 95 (11.49%) Test Automation
11 90 (10.88%) Analytics
12 78 (9.43%) OOP
13 77 (9.31%) Migration
13 77 (9.31%) Multithreading
14 69 (8.34%) Continuous Integration
15 68 (8.22%) Mathematics
16 66 (7.98%) DevOps
17 65 (7.86%) Front End Development
17 65 (7.86%) Microservices
18 62 (7.50%) Scrum
Programming Languages
1 291 (35.19%) SQL
2 210 (25.39%) Java
3 188 (22.73%) JavaScript
4 170 (20.56%) Python
5 98 (11.85%) C#
6 82 (9.92%) C++
7 71 (8.59%) Scala
8 51 (6.17%) TypeScript
9 49 (5.93%) ES6
10 40 (4.84%) Java 8
11 32 (3.87%) T-SQL
12 23 (2.78%) Apple Swift
13 20 (2.42%) Rust
14 19 (2.30%) Cython
15 18 (2.18%) PL/SQL
15 18 (2.18%) R
16 15 (1.81%) PHP
16 15 (1.81%) VBA
17 14 (1.69%) Bash Shell
18 13 (1.57%) Go
Qualifications
1 109 (13.18%) Degree
2 45 (5.44%) Computer Science Degree
2 45 (5.44%) Security Cleared
3 36 (4.35%) SC Cleared
4 9 (1.09%) Master's Degree
4 9 (1.09%) PhD
5 6 (0.73%) DV Cleared
6 5 (0.60%) BPSS Clearance
7 4 (0.48%) ITIL Certification
7 4 (0.48%) Numerate Degree
8 3 (0.36%) DBS Check
8 3 (0.36%) Microsoft Certification
9 2 (0.24%) ACCA
9 2 (0.24%) IIBA
9 2 (0.24%) ISTQB
9 2 (0.24%) MCSA
9 2 (0.24%) SAS Certification
10 1 (0.12%) ISEB
10 1 (0.12%) MBA
10 1 (0.12%) MCP
Quality Assurance & Compliance
1 57 (6.89%) QA
2 39 (4.72%) Data Quality
3 3 (0.36%) HL7
4 2 (0.24%) Disclosure Scotland
4 2 (0.24%) GDPR
4 2 (0.24%) IFRS
4 2 (0.24%) MiFID
4 2 (0.24%) PCI DSS
5 1 (0.12%) GxP
5 1 (0.12%) IFRS 9
5 1 (0.12%) ISO/IEC 27001
5 1 (0.12%) PMO
5 1 (0.12%) SLA
System Software
1 64 (7.74%) Docker
2 14 (1.69%) HDFS
3 7 (0.85%) Apache Flume
4 6 (0.73%) Apache ZooKeeper
5 4 (0.48%) KVM
5 4 (0.48%) LXC
6 1 (0.12%) Active Directory
6 1 (0.12%) Cronacle
6 1 (0.12%) etcd
6 1 (0.12%) Firmware
6 1 (0.12%) Varnish
6 1 (0.12%) Virtual Machines
Systems Management
1 41 (4.96%) Kubernetes
2 9 (1.09%) Ansible
3 6 (0.73%) Opscode Chef
3 6 (0.73%) Puppet
4 5 (0.60%) Control-M
5 4 (0.48%) Oozie
5 4 (0.48%) Prometheus
5 4 (0.48%) Single Sign-On
5 4 (0.48%) Tivoli
6 3 (0.36%) Grafana
6 3 (0.36%) Hadoop YARN
6 3 (0.36%) Kibana
6 3 (0.36%) logstash
7 2 (0.24%) Apache Brooklyn
7 2 (0.24%) CA Spectrum
7 2 (0.24%) Marathon
7 2 (0.24%) Mesos
7 2 (0.24%) Terraform
8 1 (0.12%) Consul
8 1 (0.12%) CSIRT
Vendors
1 79 (9.55%) Microsoft
2 71 (8.59%) Oracle
3 55 (6.65%) SAP
4 42 (5.08%) Google
5 39 (4.72%) Tableau
6 17 (2.06%) Twitter
7 13 (1.57%) Salesforce.com
8 11 (1.33%) Informatica
9 10 (1.21%) Cognos
10 9 (1.09%) Atlassian
11 8 (0.97%) Adobe
11 8 (0.97%) Hortonworks
11 8 (0.97%) Sybase
12 7 (0.85%) Red Hat
13 6 (0.73%) Cloudera
13 6 (0.73%) EMC
13 6 (0.73%) hybris
13 6 (0.73%) Isilon
13 6 (0.73%) NetApp
13 6 (0.73%) Talend