Period
to 20 July 2018

The following table provides summary statistics for contract job vacancies advertised in England with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 20 July 2018 with a comparison to the same period in 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.

Test-Driven Development (TDD)
UK > England
6 months to
20 Jul 2018
Same period 2017 Same period 2016
Rank 19 20 30
Rank change year-on-year +1 +10 +2
Contract jobs citing TDD 7,612 6,536 6,108
As % of all contract IT jobs advertised in England 8.01% 7.45% 6.01%
As % of the Processes & Methodologies category 9.33% 8.75% 7.12%
Number of daily rates quoted 5,907 5,099 4,951
England median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +5.88%
10th Percentile £363 £325 £325
90th Percentile £638 £625 £619
UK median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 27 37 24
England median hourly rate £45.00 £41.50 £42.50
Median hourly rate % change year-on-year +8.43% -2.35% -
10th Percentile £21.45 £35.00 £30.48
90th Percentile £60.38 £63.75 £55.33
UK median hourly rate £45.00 £41.50 £42.50
% change year-on-year +8.43% -2.35% +6.25%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in England with a requirement for process or methodology skills.

All Process and Methodology Skills
England
Contract vacancies with a requirement for process or methodology skills 81,576 74,700 85,808
As % of all contract IT jobs advertised in England 85.83% 85.16% 84.41%
Number of daily rates quoted 54,250 49,195 57,202
England median daily rate £463 £450 £425
Median daily rate % change year-on-year +2.78% +5.88% +4.94%
10th Percentile £300 £281 £268
90th Percentile £638 £625 £613
UK median daily rate £450 £449 £425
% change year-on-year +0.33% +5.53% +6.25%
Number of hourly rates quoted 2,261 1,931 2,059
England median hourly rate £22.50 £24.50 £23.50
Median hourly rate % change year-on-year -8.16% +4.26% +11.90%
10th Percentile £11.25 £11.38 £11.72
90th Percentile £50.50 £51.25 £48.55
UK median hourly rate £22.00 £25.00 £24.00
% change year-on-year -12.00% +4.17% +12.54%

TDD
Job Vacancy Trend in England

Job postings citing TDD as a percentage of all IT jobs advertised in England.

Job vacancy trend for TDD in England

TDD
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for TDD in England

TDD
Contractor Daily Rate Histogram in England

The daily rate distribution of IT jobs citing TDD in England over the 6 months to 20 July 2018.

Contractor daily rate histogram for TDD in England

TDD
Contractor Hourly Rate Trend in England

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

Contractor hourly rate trend for TDD in England

TDD
Contractor Hourly Rate Histogram in England

The hourly rate distribution of IT jobs citing TDD in England over the 6 months to 20 July 2018.

Contractor hourly rate histogram for TDD in England

TDD
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the England region over the 6 months to 20 July 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
London +1 4,611 £525 +5.00% 1,043
North of England +5 1,026 £420 +5.00% 367
South East -2 961 £450 +4.65% 279
Yorkshire +7 498 £425 - 125
Midlands +4 492 £425 +13.33% 164
North West +8 430 £420 +5.00% 218
East of England -9 335 £525 +10.53% 140
West Midlands +4 305 £438 +16.67% 100
East Midlands +6 187 £410 +7.89% 64
South West +8 182 £400 - 107
North East -6 99 £375 +7.14% 24
South Coast - 2 - -
TDD
UK

For the 6 months to 20 July 2018, IT contractor jobs citing TDD 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 across the England region with a requirement for TDD.

1 5,813 (76.37%) Agile Software Development
2 3,250 (42.70%) Java
3 3,073 (40.37%) BDD
4 2,807 (36.88%) JavaScript
5 2,258 (29.66%) Scrum
6 1,968 (25.85%) Continuous Integration
7 1,943 (25.53%) Git (software)
8 1,773 (23.29%) C#
9 1,750 (22.99%) HTML
10 1,705 (22.40%) .NET
11 1,677 (22.03%) Microservices
12 1,601 (21.03%) CSS
13 1,594 (20.94%) Test Automation
14 1,504 (19.76%) Amazon AWS
15 1,449 (19.04%) AngularJS
16 1,426 (18.73%) Jenkins
17 1,425 (18.72%) Spring
18 1,410 (18.52%) SQL
19 1,402 (18.42%) RESTful
20 1,380 (18.13%) REST
21 1,315 (17.28%) Finance
22 1,283 (16.85%) React
23 1,248 (16.40%) DevOps
24 1,237 (16.25%) MVC
25 1,187 (15.59%) Web Services
26 1,173 (15.41%) Node.js
27 1,103 (14.49%) OO
28 1,100 (14.45%) Microsoft Azure
29 1,089 (14.31%) Kanban
30 1,073 (14.10%) Docker

TDD
Co-occurring IT Skills in England 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
1 412 (5.41%) Confluence
2 294 (3.86%) Elasticsearch
3 290 (3.81%) Apache
4 235 (3.09%) Apache Spark
5 234 (3.07%) Tomcat
6 183 (2.40%) WebSphere
7 140 (1.84%) WebLogic
8 139 (1.83%) Cloud Foundry
9 131 (1.72%) JBoss
10 130 (1.71%) CMS
10 130 (1.71%) NServiceBus
11 114 (1.50%) OpenStack
12 92 (1.21%) Oracle SOA Suite
13 86 (1.13%) Mule
14 62 (0.81%) Oracle Service Bus
15 54 (0.71%) IIS
16 51 (0.67%) Jetty
17 42 (0.55%) Apache Solr
17 42 (0.55%) Sitecore CMS
18 41 (0.54%) Adobe Experience Manager
Applications
1 58 (0.76%) Photoshop
2 30 (0.39%) Microsoft Excel
3 25 (0.33%) GIMP
4 11 (0.14%) Adobe Illustrator
5 10 (0.13%) Fireworks
6 7 (0.092%) Chatbot
6 7 (0.092%) Spreadsheet
7 4 (0.053%) InVision
7 4 (0.053%) Microsoft Office
7 4 (0.053%) MS Visio
8 2 (0.026%) S-PLUS
9 1 (0.013%) Adobe Creative Suite
9 1 (0.013%) Doxygen
9 1 (0.013%) Final Cut Pro
9 1 (0.013%) Microsoft Project
Business Applications
1 33 (0.43%) Dynamics CRM
2 18 (0.24%) Payment Gateway
3 17 (0.22%) thinkFolio
4 14 (0.18%) Eagle PACE
4 14 (0.18%) Front Arena
5 13 (0.17%) Markit EDM
6 11 (0.14%) Magento
7 6 (0.079%) Bloomberg AIM
7 6 (0.079%) Distributed Ledger
8 5 (0.066%) Oracle BPM
8 5 (0.066%) Summit
9 4 (0.053%) SDL Web 8
10 3 (0.039%) LatentZero
10 3 (0.039%) Oracle CRM
10 3 (0.039%) SAP FI
10 3 (0.039%) Siebel CRM
11 2 (0.026%) Oracle General Ledger
11 2 (0.026%) Salesforce.com CRM
11 2 (0.026%) SAP Hybris
11 2 (0.026%) Unica
Cloud Services
1 1,504 (19.76%) Amazon AWS
2 1,100 (14.45%) Microsoft Azure
3 290 (3.81%) GitHub
4 209 (2.75%) Serverless
5 164 (2.15%) npm
6 151 (1.98%) Google Cloud Platform
7 130 (1.71%) Amazon EC2
8 119 (1.56%) Cloud Computing
9 88 (1.16%) PaaS
10 75 (0.99%) Heroku
11 71 (0.93%) Amazon S3
12 67 (0.88%) AWS Lambda
13 65 (0.85%) SaaS
14 61 (0.80%) OpenShift
15 54 (0.71%) Slack
16 42 (0.55%) Amazon SQS
17 41 (0.54%) IaaS
18 28 (0.37%) Amazon CloudWatch
19 24 (0.32%) BrowserStack
20 23 (0.30%) Sauce Labs
Communications & Networking
1 296 (3.89%) HTTP
2 100 (1.31%) TCP/IP
3 89 (1.17%) Internet
4 58 (0.76%) DNS
5 55 (0.72%) SSL
6 51 (0.67%) SMS
7 47 (0.62%) FTP
8 20 (0.26%) AMQP
9 16 (0.21%) DHCP
10 15 (0.20%) Firewall
11 12 (0.16%) Broadband
11 12 (0.16%) HTTPS
11 12 (0.16%) Software-Defined Networking
12 11 (0.14%) DMARC
13 10 (0.13%) Kerberos
13 10 (0.13%) Network Security
13 10 (0.13%) Reverse Proxy
14 8 (0.11%) DKIM
14 8 (0.11%) FIX Connectivity
15 7 (0.092%) IPsec
Database & Business Intelligence
1 937 (12.31%) SQL Server
2 813 (10.68%) NoSQL
3 519 (6.82%) MySQL
4 517 (6.79%) MongoDB
5 511 (6.71%) PostgreSQL
6 435 (5.71%) Relational Database
7 387 (5.08%) Big Data
8 283 (3.72%) Hadoop
9 242 (3.18%) Apache Cassandra
10 140 (1.84%) Redis
11 135 (1.77%) HBase
12 119 (1.56%) SQL Server 2012
13 115 (1.51%) RDBMS
14 77 (1.01%) SQL Server 2014
15 74 (0.97%) SQL Server 2016
16 67 (0.88%) Apache Hive
17 64 (0.84%) Amazon DynamoDB
17 64 (0.84%) Neo4j
18 60 (0.79%) Azure SQL Database
19 55 (0.72%) Oracle Database
Development Applications
1 1,943 (25.53%) Git (software)
2 1,426 (18.73%) Jenkins
3 735 (9.66%) JIRA
4 729 (9.58%) Maven
5 625 (8.21%) Selenium
6 564 (7.41%) Cucumber
7 526 (6.91%) JUnit
8 336 (4.41%) webpack
9 312 (4.10%) Subversion
10 308 (4.05%) TeamCity
11 301 (3.95%) NUnit
12 294 (3.86%) Mockito
13 270 (3.55%) Jasmine
14 241 (3.17%) Gradle
15 233 (3.06%) gulp
16 227 (2.98%) Grunt
17 210 (2.76%) Team Foundation Server
18 207 (2.72%) SpecFlow
19 202 (2.65%) WebDriver
20 200 (2.63%) Visual Studio
General
1 1,315 (17.28%) Finance
2 676 (8.88%) Banking
3 295 (3.88%) Retail
4 197 (2.59%) Telecoms
5 189 (2.48%) Front Office
6 176 (2.31%) Investment Banking
7 175 (2.30%) Games
8 169 (2.22%) Marketing
9 117 (1.54%) Manufacturing
10 103 (1.35%) Electronics
11 71 (0.93%) Financial Institution
12 68 (0.89%) Publishing
13 58 (0.76%) Back Office
14 54 (0.71%) Advertising
14 54 (0.71%) Law
15 43 (0.56%) Retail Banking
16 37 (0.49%) Legal
17 34 (0.45%) Automotive
18 9 (0.12%) General Ledger
19 6 (0.079%) Prime Brokerage
Job Titles
1 5,777 (75.89%) Developer
2 1,842 (24.20%) Java Developer
3 961 (12.62%) .NET Developer
4 916 (12.03%) Senior Developer
5 772 (10.14%) C# Developer
6 580 (7.62%) React Developer
7 521 (6.84%) JavaScript Developer
8 445 (5.85%) Front End Developer (Client-Side Developer)
9 403 (5.29%) C# .NET Developer
10 377 (4.95%) Full Stack Developer
11 354 (4.65%) Senior Java Developer
12 341 (4.48%) Agile Developer
13 275 (3.61%) Angular Developer
14 260 (3.42%) Node.js Developer
15 236 (3.10%) Software Engineer
16 215 (2.82%) Architect
17 205 (2.69%) Scala Developer
18 203 (2.67%) Lead Developer
19 196 (2.57%) Python Developer
20 183 (2.40%) Java Engineer
Libraries, Frameworks & Software Standards
1 1,750 (22.99%) HTML
2 1,705 (22.40%) .NET
3 1,601 (21.03%) CSS
4 1,449 (19.04%) AngularJS
5 1,425 (18.72%) Spring
6 1,402 (18.42%) RESTful
7 1,380 (18.13%) REST
8 1,283 (16.85%) React
9 1,187 (15.59%) Web Services
10 1,173 (15.41%) Node.js
11 950 (12.48%) HTML5
12 740 (9.72%) ASP.NET
13 725 (9.52%) Spring Boot
14 714 (9.38%) JSON
15 674 (8.85%) CSS3
16 637 (8.37%) ASP.NET Web API
17 612 (8.04%) Hibernate
18 584 (7.67%) SOAP
19 519 (6.82%) jQuery
20 482 (6.33%) ASP.NET MVC
Miscellaneous
1 847 (11.13%) Greenfield Project
2 530 (6.96%) User Experience
3 350 (4.60%) Mobile App
4 283 (3.72%) Fintech
5 220 (2.89%) Analytical Skills
6 219 (2.88%) Enterprise Software
7 200 (2.63%) Computer Science
8 133 (1.75%) Algorithms
9 118 (1.55%) Derivative
10 105 (1.38%) Fixed Income
11 101 (1.33%) iPad
12 97 (1.27%) Foreign Exchange (FX)
13 93 (1.22%) Self-Motivation
14 92 (1.21%) Data Structures
15 87 (1.14%) Virtual Team
16 70 (0.92%) Equities
17 65 (0.85%) Linux Command Line
18 55 (0.72%) Public Cloud
19 53 (0.70%) Video on Demand
20 46 (0.60%) Equity Derivative
Operating Systems
1 857 (11.26%) Linux
2 402 (5.28%) Unix
3 291 (3.82%) Android
4 263 (3.46%) Windows
5 259 (3.40%) Apple iOS
6 67 (0.88%) Mac OS X
7 57 (0.75%) Red Hat Enterprise Linux
8 33 (0.43%) Mac OS
9 20 (0.26%) Windows Server
10 17 (0.22%) CentOS
11 15 (0.20%) VMS
12 14 (0.18%) Solaris
13 11 (0.14%) Ubuntu
14 8 (0.11%) Oracle Linux
15 7 (0.092%) HPUX
16 6 (0.079%) Debian
16 6 (0.079%) Windows 7
16 6 (0.079%) Windows 8
17 5 (0.066%) Windows Phone
18 4 (0.053%) Nucleus RTOS
Processes & Methodologies
1 5,813 (76.37%) Agile Software Development
2 3,073 (40.37%) BDD
3 2,258 (29.66%) Scrum
4 1,968 (25.85%) Continuous Integration
5 1,677 (22.03%) Microservices
6 1,594 (20.94%) Test Automation
7 1,248 (16.40%) DevOps
8 1,237 (16.25%) MVC
9 1,103 (14.49%) OO
10 1,089 (14.31%) Kanban
11 872 (11.46%) Pair Programming
12 867 (11.39%) Software Engineering
13 854 (11.22%) Unit Testing
14 664 (8.72%) E-Commerce
15 636 (8.36%) Front End Development
16 628 (8.25%) Continuous Delivery
17 574 (7.54%) SOA
18 532 (6.99%) Open Source
19 461 (6.06%) Problem-Solving
20 458 (6.02%) Web Development
Programming Languages
1 3,250 (42.70%) Java
2 2,807 (36.88%) JavaScript
3 1,773 (23.29%) C#
4 1,410 (18.52%) SQL
5 1,064 (13.98%) Java 8
6 731 (9.60%) Python
7 550 (7.23%) Scala
8 413 (5.43%) Ruby
9 390 (5.12%) TypeScript
10 380 (4.99%) ES6
11 245 (3.22%) Groovy
12 203 (2.67%) PHP
13 174 (2.29%) T-SQL
14 161 (2.12%) C++
15 149 (1.96%) Go
16 148 (1.94%) Apple Swift
17 147 (1.93%) Kotlin
18 145 (1.90%) Bash Shell
19 120 (1.58%) Shell Script
20 111 (1.46%) Objective-C
Qualifications
1 385 (5.06%) Security Cleared
2 335 (4.40%) Degree
3 300 (3.94%) SC Cleared
4 100 (1.31%) Computer Science Degree
5 90 (1.18%) BPSS Clearance
6 75 (0.99%) ISTQB
7 40 (0.53%) ISEB
8 31 (0.41%) Master's Degree
9 27 (0.35%) ISTQB Foundation Certification
10 26 (0.34%) DV Cleared
11 15 (0.20%) BC Cleared
12 14 (0.18%) DBS Check
13 10 (0.13%) AWS Certification
14 9 (0.12%) CTC Cleared
15 8 (0.11%) PMI Certification
15 8 (0.11%) PMP
16 6 (0.079%) ISTQB Advanced Certification
17 5 (0.066%) ISEB Practitioner
17 5 (0.066%) Numerate Degree
18 4 (0.053%) CITP
Quality Assurance & Compliance
1 485 (6.37%) QA
2 61 (0.80%) GCP
3 31 (0.41%) PCI DSS
4 29 (0.38%) PMO
5 27 (0.35%) GDPR
6 24 (0.32%) Data Quality
7 12 (0.16%) Disclosure Scotland
7 12 (0.16%) ISO/IEC 27001
8 9 (0.12%) SLA
9 8 (0.11%) EMIR
9 8 (0.11%) MiFID
10 7 (0.092%) WCAG
11 5 (0.066%) HMG Security Policy Framework
11 5 (0.066%) PSD2
12 3 (0.039%) Dodd-Frank
13 2 (0.026%) ISO 9001
13 2 (0.026%) SEPA
13 2 (0.026%) WAI
14 1 (0.013%) DICOM
14 1 (0.013%) ECSS
System Software
1 1,073 (14.10%) Docker
2 82 (1.08%) HDFS
3 71 (0.93%) Apache ZooKeeper
4 50 (0.66%) VMware Infrastructure
5 33 (0.43%) Active Directory
6 30 (0.39%) vSphere
7 24 (0.32%) Virtual Machines
8 12 (0.16%) VirtualBox
9 7 (0.092%) Xen
10 6 (0.079%) Apache Flume
10 6 (0.079%) LXC
11 4 (0.053%) Platform Symphony
12 3 (0.039%) QEMU
12 3 (0.039%) Veritas Cluster Server
13 2 (0.026%) Firmware
13 2 (0.026%) Postfix
14 1 (0.013%) Ceph
14 1 (0.013%) NFS
14 1 (0.013%) OpenIDM
14 1 (0.013%) Varnish
Systems Management
1 375 (4.93%) Ansible
2 369 (4.85%) Kubernetes
3 342 (4.49%) Puppet
4 280 (3.68%) Opscode Chef
5 211 (2.77%) Terraform
6 75 (0.99%) Mesos
7 64 (0.84%) Hadoop YARN
8 47 (0.62%) Kibana
9 42 (0.55%) Grafana
10 39 (0.51%) logstash
11 30 (0.39%) Consul
12 29 (0.38%) HP Quality Center
13 28 (0.37%) Business Desktop Deployment
14 25 (0.33%) Salt
15 24 (0.32%) Docker Swarm
15 24 (0.32%) Prometheus
16 20 (0.26%) Single Sign-On
17 18 (0.24%) Packer
18 16 (0.21%) Cobbler
18 16 (0.21%) Graylog
Vendors
1 509 (6.69%) Oracle
2 468 (6.15%) Microsoft
3 217 (2.85%) Google
4 118 (1.55%) SAP
5 105 (1.38%) IBM
6 82 (1.08%) Adobe
6 82 (1.08%) Splunk
7 71 (0.93%) Red Hat
7 71 (0.93%) Sitecore
8 67 (0.88%) Atlassian
9 57 (0.75%) WSO2
10 50 (0.66%) VMware
11 48 (0.63%) Salesforce.com
12 47 (0.62%) MuleSoft
13 41 (0.54%) Sybase
14 34 (0.45%) Tableau
15 32 (0.42%) HP
16 29 (0.38%) AppDynamics
17 28 (0.37%) Xamarin
18 27 (0.35%) Coverity