Period
to 16 November 2018

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 November 2018 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 Nov 2018
Same period 2017 Same period 2016
Rank 337 264 407
Rank change year-on-year -73 +143 +4
Contract jobs citing Data Structures 772 1,004 630
As % of all contract IT jobs advertised in the UK 0.74% 0.98% 0.59%
As % of the Miscellaneous category 2.18% 2.83% 1.74%
Number of daily rates quoted 506 702 450
UK median daily rate £500 £456 £438
Median daily rate % change year-on-year +9.57% +4.30% -7.89%
10th Percentile £361 £363 £260
90th Percentile £700 £675 £650
UK excluding London median daily rate £425 £425 £388
% change year-on-year - +9.68% +3.33%
Number of hourly rates quoted 9 14 5
UK median hourly rate £39.50 £35.00 £34.00
Median hourly rate % change year-on-year +12.86% +2.94% +51.11%
10th Percentile £33.67 £27.00 £11.88
90th Percentile £46.90 £56.15 £47.50
UK excluding London median hourly rate £44.50 £35.00 £34.00
% change year-on-year +27.14% +2.94% +4.62%

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 35,372 35,438 36,251
As % of all contract IT jobs advertised in the UK 34.04% 34.44% 34.14%
Number of daily rates quoted 23,277 23,416 23,688
UK median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +1.80%
10th Percentile £275 £263 £250
90th Percentile £656 £650 £625
UK excluding London median daily rate £425 £400 £388
% change year-on-year +6.25% +3.23% +3.33%
Number of hourly rates quoted 1,084 1,085 1,249
UK median hourly rate £21.50 £20.12 £20.00
Median hourly rate % change year-on-year +6.86% +0.60% +5.26%
10th Percentile £12.25 £11.25 £11.62
90th Percentile £50.93 £48.52 £47.50
UK excluding London median hourly rate £20.00 £20.00 £20.92
% change year-on-year - -4.37% +12.93%

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 November 2018.

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 16 November 2018.

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 16 November 2018. 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 -47 716 £500 +5.26% 324
London -25 481 £550 +4.76% 215
UK excluding London -98 281 £425 - 116
South East +5 85 £425 +3.03% 37
North of England -50 49 £381 -10.29% 25
Scotland -28 42 £338 -11.18% 5
East of England +27 40 £450 +12.50% 19
Midlands -20 39 £400 -8.26% 7
North West -22 31 £363 -19.44% 13
East Midlands +8 24 £400 -11.11% 6
South West -28 20 £436 +14.43% 22
Yorkshire -33 15 £455 +7.06% 8
West Midlands -28 14 £375 -11.76% 1
Wales -20 5 £450 +7.14% 1
North East -3 3 £225 -25.00% 4
Northern Ireland -35 1 - - 1

For the 6 months to 16 November 2018, 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.

1 301 (38.99%) Algorithms
2 269 (34.84%) Agile Software Development
3 258 (33.42%) SQL
4 232 (30.05%) OO
5 210 (27.20%) Finance
6 190 (24.61%) Java
7 188 (24.35%) JavaScript
8 164 (21.24%) Python
9 154 (19.95%) Computer Science
10 139 (18.01%) TDD
11 136 (17.62%) Analytical Skills
12 134 (17.36%) Git (software)
13 131 (16.97%) Data Modelling
14 121 (15.67%) Problem-Solving
15 120 (15.54%) Amazon AWS
16 119 (15.41%) HTML
17 114 (14.77%) OOD
18 104 (13.47%) C#
18 104 (13.47%) SQL Server
18 104 (13.47%) CSS
19 101 (13.08%) Business Intelligence
20 97 (12.56%) Test Automation
21 96 (12.44%) Degree
22 91 (11.79%) Data Warehouse
23 87 (11.27%) OOP
23 87 (11.27%) Redux
24 86 (11.14%) Relational Database
25 84 (10.88%) ETL
25 84 (10.88%) Microsoft
26 83 (10.75%) Multithreading

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 (5.83%) Apache Spark
2 18 (2.33%) Apache
3 14 (1.81%) IPython
4 12 (1.55%) Apache Pig
4 12 (1.55%) SAS
5 11 (1.42%) Confluence
5 11 (1.42%) SharePoint
6 10 (1.30%) Elasticsearch
7 6 (0.78%) Cloud Foundry
7 6 (0.78%) CMS
8 4 (0.52%) Apache Solr
8 4 (0.52%) IIS
8 4 (0.52%) Tomcat
9 3 (0.39%) Ethereum
9 3 (0.39%) MS Exchange
9 3 (0.39%) WebSphere
9 3 (0.39%) WordPress
10 2 (0.26%) JBoss
10 2 (0.26%) Mule
11 1 (0.13%) Drupal
Applications
1 37 (4.79%) Microsoft Excel
2 9 (1.17%) Microsoft Office
3 6 (0.78%) Spreadsheet
4 5 (0.65%) MS Visio
5 4 (0.52%) Photoshop
6 3 (0.39%) Adobe Illustrator
6 3 (0.39%) InVision
7 2 (0.26%) Microsoft PowerPoint
8 1 (0.13%) Adobe Creative Suite
8 1 (0.13%) Fireworks
Business Applications
1 8 (1.04%) Infor M3
1 8 (1.04%) SAP MM
1 8 (1.04%) SAP Oil and Gas
2 6 (0.78%) SAP ERP
3 4 (0.52%) Distributed Ledger
3 4 (0.52%) SAP APO
3 4 (0.52%) SAP MDM
3 4 (0.52%) SAP R/3
3 4 (0.52%) SAP S/4HANA
4 3 (0.39%) Salesforce.com CRM
4 3 (0.39%) SAP Retail
5 2 (0.26%) Cognos Business Intelligence
5 2 (0.26%) Dynamics CRM
5 2 (0.26%) Markit EDM
5 2 (0.26%) Oracle EBS
5 2 (0.26%) Oracle Financials
5 2 (0.26%) Remedy ITSM
6 1 (0.13%) Maximo
6 1 (0.13%) Oracle ERP
6 1 (0.13%) SAP HR
Cloud Services
1 120 (15.54%) Amazon AWS
2 57 (7.38%) Microsoft Azure
3 52 (6.74%) GitHub
4 34 (4.40%) Google Cloud Platform
5 30 (3.89%) npm
6 25 (3.24%) Heroku
7 20 (2.59%) PaaS
8 13 (1.68%) SaaS
9 12 (1.55%) Yarn
10 10 (1.30%) Amazon S3
10 10 (1.30%) IaaS
11 9 (1.17%) BrowserStack
11 9 (1.17%) OpenShift
11 9 (1.17%) Sauce Labs
12 8 (1.04%) Amazon EC2
13 7 (0.91%) Cloud Computing
13 7 (0.91%) Google App Engine
14 6 (0.78%) AWS Elastic Beanstalk
15 5 (0.65%) iPaaS
16 4 (0.52%) AWS Lambda
Communications & Networking
1 26 (3.37%) TCP/IP
2 20 (2.59%) HTTP
3 10 (1.30%) HTTPS
3 10 (1.30%) Internet
4 8 (1.04%) Firewall
5 6 (0.78%) AMQP
5 6 (0.78%) Kerberos
5 6 (0.78%) MQTT
6 5 (0.65%) Intranet
7 4 (0.52%) BIG-IP
7 4 (0.52%) NetScaler
7 4 (0.52%) SMS
7 4 (0.52%) VoIP
8 3 (0.39%) SAN
9 2 (0.26%) DNS
9 2 (0.26%) IPFS
9 2 (0.26%) LAN
10 1 (0.13%) DMZ
10 1 (0.13%) DPNSS
10 1 (0.13%) VPN
Database & Business Intelligence
1 104 (13.47%) SQL Server
2 91 (11.79%) Data Warehouse
3 86 (11.14%) Relational Database
4 65 (8.42%) Hadoop
5 55 (7.12%) Big Data
6 52 (6.74%) NoSQL
7 45 (5.83%) PostgreSQL
8 41 (5.31%) Apache Hive
9 37 (4.79%) SQL Server Integration Services
10 28 (3.63%) MongoDB
10 28 (3.63%) SQL Server Analysis Services
10 28 (3.63%) SQL Server Reporting Services
11 27 (3.50%) Power BI
12 26 (3.37%) Data Lake
12 26 (3.37%) MySQL
13 23 (2.98%) Apache Cassandra
14 21 (2.72%) BusinessObjects
15 19 (2.46%) SQL Server 2008
16 18 (2.33%) OLAP
17 17 (2.20%) SQL Server 2014
Development Applications
1 134 (17.36%) Git (software)
2 50 (6.48%) Jenkins
3 48 (6.22%) webpack
4 31 (4.02%) JIRA
5 29 (3.76%) JUnit
6 26 (3.37%) PostCSS
7 24 (3.11%) Selenium
8 23 (2.98%) Maven
9 22 (2.85%) Subversion
10 18 (2.33%) Cucumber
11 15 (1.94%) TeamCity
12 14 (1.81%) Bitbucket
13 13 (1.68%) Jasmine
14 12 (1.55%) Hudson
14 12 (1.55%) JMeter
14 12 (1.55%) Visual Studio
15 10 (1.30%) WebDriver
16 9 (1.17%) Gerrit
16 9 (1.17%) JBehave
16 9 (1.17%) Mocha
General
1 210 (27.20%) Finance
2 75 (9.72%) Banking
3 42 (5.44%) Front Office
4 37 (4.79%) Telecoms
5 22 (2.85%) Marketing
6 15 (1.94%) Investment Banking
6 15 (1.94%) Legal
6 15 (1.94%) Retail
7 14 (1.81%) Games
7 14 (1.81%) Manufacturing
8 10 (1.30%) Electronics
9 6 (0.78%) Advertising
10 5 (0.65%) Pharmaceutical
11 4 (0.52%) Back Office
11 4 (0.52%) Financial Institution
11 4 (0.52%) General Ledger
11 4 (0.52%) German Language
11 4 (0.52%) Retail Banking
12 2 (0.26%) Arabic Language
12 2 (0.26%) French Language
Job Titles
1 457 (59.20%) Developer
2 102 (13.21%) Java Developer
3 94 (12.18%) Analyst
4 63 (8.16%) React Developer
5 51 (6.61%) Python Developer
6 48 (6.22%) Senior Developer
7 46 (5.96%) Architect
8 41 (5.31%) Data Analyst
9 35 (4.53%) Front End Developer (Client-Side Developer)
10 34 (4.40%) C# Developer
11 33 (4.27%) Data Engineer
12 27 (3.50%) Business Analyst
12 27 (3.50%) JavaScript Developer
13 25 (3.24%) Full Stack Developer
13 25 (3.24%) Software Developer
13 25 (3.24%) SQL Developer
14 23 (2.98%) Backend Developer
14 23 (2.98%) Business Intelligence Developer
14 23 (2.98%) Data Architect
15 22 (2.85%) Lead Developer
Libraries, Frameworks & Software Standards
1 119 (15.41%) HTML
2 104 (13.47%) CSS
3 87 (11.27%) Redux
4 68 (8.81%) React
4 68 (8.81%) REST
5 63 (8.16%) Node.js
6 57 (7.38%) HTML5
7 53 (6.87%) .NET
7 53 (6.87%) Kafka
7 53 (6.87%) Web Services
8 52 (6.74%) AngularJS
8 52 (6.74%) RESTful
9 46 (5.96%) JSON
9 46 (5.96%) Spring
10 44 (5.70%) XML
11 37 (4.79%) jQuery
12 36 (4.66%) SOAP
13 34 (4.40%) Chai
14 25 (3.24%) CSS3
14 25 (3.24%) Enzyme
Miscellaneous
1 301 (38.99%) Algorithms
2 154 (19.95%) Computer Science
3 136 (17.62%) Analytical Skills
4 78 (10.10%) User Experience
5 33 (4.27%) Hedge funds
5 33 (4.27%) Mobile App
6 27 (3.50%) Data Centre
7 25 (3.24%) Equities
8 23 (2.98%) Management Information System
8 23 (2.98%) Self-Motivation
9 20 (2.59%) Cloud Native
10 19 (2.46%) Fixed Income
10 19 (2.46%) Foreign Exchange (FX)
10 19 (2.46%) Greenfield Project
11 18 (2.33%) Fintech
12 16 (2.07%) Client/Server
13 14 (1.81%) Derivative
14 10 (1.30%) Reference Data
15 9 (1.17%) HP Storage
15 9 (1.17%) Public Cloud
Operating Systems
1 80 (10.36%) Linux
2 69 (8.94%) Unix
3 31 (4.02%) Apple iOS
4 29 (3.76%) Windows
5 26 (3.37%) Android
6 8 (1.04%) Windows Server
7 4 (0.52%) Red Hat Enterprise Linux
7 4 (0.52%) Windows 7
8 3 (0.39%) CentOS
8 3 (0.39%) Mac OS
8 3 (0.39%) Windows 8
9 2 (0.26%) DC/OS
9 2 (0.26%) Mac OS X
9 2 (0.26%) Solaris
Processes & Methodologies
1 269 (34.84%) Agile Software Development
2 232 (30.05%) OO
3 139 (18.01%) TDD
4 131 (16.97%) Data Modelling
5 121 (15.67%) Problem-Solving
6 114 (14.77%) OOD
7 101 (13.08%) Business Intelligence
8 97 (12.56%) Test Automation
9 87 (11.27%) OOP
10 84 (10.88%) ETL
11 83 (10.75%) Multithreading
12 79 (10.23%) Continuous Integration
13 73 (9.46%) Analytics
14 65 (8.42%) Front End Development
15 64 (8.29%) Scrum
16 62 (8.03%) Migration
17 60 (7.77%) DevOps
17 60 (7.77%) Microservices
18 57 (7.38%) Data Management
19 56 (7.25%) Software Engineering
Programming Languages
1 258 (33.42%) SQL
2 190 (24.61%) Java
3 188 (24.35%) JavaScript
4 164 (21.24%) Python
5 104 (13.47%) C#
6 77 (9.97%) C++
7 62 (8.03%) Scala
8 53 (6.87%) ES6
8 53 (6.87%) TypeScript
9 39 (5.05%) T-SQL
10 35 (4.53%) Java 8
11 30 (3.89%) Go
12 24 (3.11%) Apple Swift
13 21 (2.72%) PHP
14 19 (2.46%) Rust
15 14 (1.81%) Cython
16 13 (1.68%) Bash Shell
16 13 (1.68%) PL/SQL
17 11 (1.42%) Perl
18 10 (1.30%) VBA
Qualifications
1 96 (12.44%) Degree
2 46 (5.96%) Computer Science Degree
3 37 (4.79%) Security Cleared
4 27 (3.50%) SC Cleared
5 9 (1.17%) Master's Degree
6 8 (1.04%) Microsoft Certification
7 5 (0.65%) DV Cleared
7 5 (0.65%) ISTQB
7 5 (0.65%) MCSE
8 4 (0.52%) BPSS Clearance
8 4 (0.52%) Numerate Degree
9 3 (0.39%) CTC Cleared
9 3 (0.39%) DBS Check
9 3 (0.39%) HNC
9 3 (0.39%) MCSA
9 3 (0.39%) PhD
10 2 (0.26%) CISSP
10 2 (0.26%) IIBA
10 2 (0.26%) SAS Certification
11 1 (0.13%) AWS Certification
Quality Assurance & Compliance
1 52 (6.74%) Data Quality
2 42 (5.44%) QA
3 2 (0.26%) Disclosure Scotland
3 2 (0.26%) GDPR
3 2 (0.26%) IFRS
4 1 (0.13%) GxP
4 1 (0.13%) HL7
4 1 (0.13%) IFRS 9
4 1 (0.13%) ISO/IEC 27001
4 1 (0.13%) PCI DSS
4 1 (0.13%) PMO
System Software
1 68 (8.81%) Docker
2 18 (2.33%) HDFS
3 7 (0.91%) Active Directory
3 7 (0.91%) Apache Flume
4 6 (0.78%) Apache ZooKeeper
5 4 (0.52%) KVM
5 4 (0.52%) LXC
6 3 (0.39%) Forefront TMG
6 3 (0.39%) Hyper-V
7 1 (0.13%) Cronacle
7 1 (0.13%) etcd
7 1 (0.13%) Varnish
7 1 (0.13%) Virtual Servers
Systems Management
1 47 (6.09%) Kubernetes
2 12 (1.55%) Ansible
3 6 (0.78%) Opscode Chef
3 6 (0.78%) Puppet
4 5 (0.65%) Control-M
4 5 (0.65%) Oozie
5 4 (0.52%) HP ALM
5 4 (0.52%) Prometheus
5 4 (0.52%) Single Sign-On
5 4 (0.52%) Tivoli
6 3 (0.39%) Consul
6 3 (0.39%) CSIRT
6 3 (0.39%) Grafana
6 3 (0.39%) Hadoop YARN
6 3 (0.39%) Kibana
6 3 (0.39%) logstash
6 3 (0.39%) Systems Management Server (SMS)
7 2 (0.26%) CA Spectrum
7 2 (0.26%) Mesos
7 2 (0.26%) NetBackup
Vendors
1 84 (10.88%) Microsoft
2 67 (8.68%) Oracle
3 50 (6.48%) Google
4 48 (6.22%) SAP
5 34 (4.40%) Tableau
6 21 (2.72%) Twitter
7 13 (1.68%) HP
8 11 (1.42%) Cognos
8 11 (1.42%) EMC
8 11 (1.42%) Isilon
8 11 (1.42%) NetApp
9 10 (1.30%) Salesforce.com
10 9 (1.17%) Cloudera
10 9 (1.17%) Cypress Semiconductor
10 9 (1.17%) Informatica
10 9 (1.17%) Perfecto Mobile
11 8 (1.04%) Hortonworks
11 8 (1.04%) Teradata
12 7 (0.91%) Infor
12 7 (0.91%) Red Hat