Period
to 25 February 2020

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 25 February 2020 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
25 Feb 2020
Same period 2019 Same period 2018
Rank 38 21 14
Rank change year-on-year -17 -7 +9
Contract jobs citing TDD 3,248 6,857 7,374
As % of all contract IT jobs advertised in England 5.26% 7.61% 8.02%
As % of the Processes & Methodologies category 6.17% 8.70% 9.28%
Number of daily rates quoted 2,545 5,320 5,829
England median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +8.11%
10th Percentile £400 £389 £350
90th Percentile £675 £650 £625
UK median daily rate £525 £513 £490
% change year-on-year +2.44% +4.59% +5.95%
Number of hourly rates quoted 22 25 41
England median hourly rate £46.25 £42.50 £45.00
Median hourly rate % change year-on-year +8.82% -5.56% +5.88%
10th Percentile £35.00 £35.00 £32.50
90th Percentile £63.75 £61.50 £63.75
UK median hourly rate £45.00 £41.50 £45.00
% change year-on-year +8.43% -7.78% +5.88%

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 52,645 78,846 79,488
As % of all contract IT jobs advertised in England 85.23% 87.56% 86.50%
Number of daily rates quoted 34,455 52,749 53,492
England median daily rate £475 £475 £450
Median daily rate % change year-on-year - +5.56% +2.86%
10th Percentile £290 £305 £288
90th Percentile £650 £650 £638
UK median daily rate £475 £475 £450
% change year-on-year - +5.56% +5.88%
Number of hourly rates quoted 1,695 1,987 1,936
England median hourly rate £23.00 £23.75 £24.00
Median hourly rate % change year-on-year -3.16% -1.04% -4.00%
10th Percentile £12.43 £11.50 £11.50
90th Percentile £52.50 £50.25 £50.25
UK median hourly rate £23.75 £23.86 £24.00
% change year-on-year -0.45% -0.59% -4.00%

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 25 February 2020.

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 25 February 2020.

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 25 February 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
London -3 2,172 £550 +2.33% 806
North of England -20 330 £450 -0.55% 328
South East -44 311 £450 -5.26% 225
North West -11 169 £461 +2.50% 182
South West -23 162 £500 +11.11% 154
Midlands -25 155 £456 -3.95% 129
Yorkshire -26 115 £450 -5.26% 110
East of England -24 111 £475 -7.77% 94
West Midlands -19 108 £475 +2.70% 78
North East -14 47 £430 -4.44% 36
East Midlands -15 47 £425 -15.00% 51
TDD
UK

For the 6 months to 25 February 2020, 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 2,303 (70.91%) Agile Software Development
2 1,247 (38.39%) Java
3 1,207 (37.16%) BDD
4 1,104 (33.99%) JavaScript
5 843 (25.95%) Scrum
6 814 (25.06%) Microservices
7 807 (24.85%) C#
8 765 (23.55%) .NET
9 745 (22.94%) Git (software)
10 712 (21.92%) Continuous Integration
11 688 (21.18%) AngularJS
12 682 (21.00%) DevOps
13 665 (20.47%) AWS
14 659 (20.29%) HTML
15 642 (19.77%) Test Automation
16 610 (18.78%) CSS
17 600 (18.47%) SQL
18 589 (18.13%) Spring
19 585 (18.01%) React
20 581 (17.89%) Azure
21 542 (16.69%) Finance
22 510 (15.70%) RESTful
23 504 (15.52%) Jenkins
24 453 (13.95%) Docker
25 439 (13.52%) Software Engineering
26 422 (12.99%) Python
27 419 (12.90%) Web Services
28 416 (12.81%) Pair Programming
29 411 (12.65%) Node.js
30 397 (12.22%) SQL Server

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
1 145 (4.46%) Confluence
2 115 (3.54%) Elasticsearch
3 82 (2.52%) Apache Spark
4 59 (1.82%) Apache
5 35 (1.08%) CMS
6 34 (1.05%) Tomcat
7 26 (0.80%) Cloud Foundry
8 25 (0.77%) Oracle SOA Suite
8 25 (0.77%) SharePoint
9 23 (0.71%) IIS
10 15 (0.46%) JBoss
11 13 (0.40%) Mule
11 13 (0.40%) Red Hat Fuse
12 12 (0.37%) Umbraco
13 11 (0.34%) Oracle Service Bus
14 10 (0.31%) Anypoint
14 10 (0.31%) WebSphere
15 9 (0.28%) Sitecore CMS
16 8 (0.25%) Adobe Experience Manager
16 8 (0.25%) Mattermost
Applications
1 14 (0.43%) Microsoft Excel
2 7 (0.22%) Microsoft Office
2 7 (0.22%) Zeplin
3 6 (0.18%) Photoshop
4 4 (0.12%) Sketch
5 3 (0.092%) Microsoft PowerPoint
5 3 (0.092%) Microsoft Project
6 2 (0.062%) Adobe Illustrator
7 1 (0.031%) MS Visio
7 1 (0.031%) OmniGraffle
7 1 (0.031%) Spreadsheet
Business Applications
1 18 (0.55%) Dynamics CRM
2 14 (0.43%) Magento
3 13 (0.40%) SAP Oil and Gas
4 9 (0.28%) SAP Hybris
5 8 (0.25%) Payment Gateway
6 7 (0.22%) Oracle BPM
7 5 (0.15%) Shopify
8 4 (0.12%) BusinessWorks
8 4 (0.12%) FINCAD Analytics
8 4 (0.12%) R3 Corda
9 2 (0.062%) ION MarketView
9 2 (0.062%) Remedy ITSM
9 2 (0.062%) SAP ERP
10 1 (0.031%) Dynamics AX
10 1 (0.031%) FastStats
10 1 (0.031%) Markit EDM
10 1 (0.031%) PolarLake
10 1 (0.031%) Sparx Enterprise Architect
10 1 (0.031%) Visualfiles
Cloud Services
1 665 (20.47%) AWS
2 581 (17.89%) Azure
3 167 (5.14%) GitHub
4 165 (5.08%) Serverless
5 109 (3.36%) GCP
6 104 (3.20%) Amazon EC2
7 70 (2.16%) AWS Lambda
8 62 (1.91%) Amazon SQS
9 59 (1.82%) Power Platform
10 45 (1.39%) PaaS
11 33 (1.02%) Azure Functions
12 32 (0.99%) OpenShift
13 27 (0.83%) Amazon S3
14 25 (0.77%) Cloud Computing
15 24 (0.74%) Dynamics 365
16 22 (0.68%) AWS CloudFormation
17 21 (0.65%) npm
18 20 (0.62%) Azure Active Directory
19 19 (0.58%) SaaS
20 15 (0.46%) Heroku
Communications & Networking
1 82 (2.52%) HTTP
2 42 (1.29%) Internet
3 30 (0.92%) DNS
4 28 (0.86%) TCP/IP
5 15 (0.46%) SSL
6 13 (0.40%) AMQP
6 13 (0.40%) FTP
7 11 (0.34%) DSL
8 10 (0.31%) HTTPS
9 7 (0.22%) Multicast
9 7 (0.22%) RTMP
10 6 (0.18%) SSH
11 5 (0.15%) Firewall
11 5 (0.15%) Skype
11 5 (0.15%) Wi-Fi
12 4 (0.12%) Kerberos
12 4 (0.12%) PuTTY
13 3 (0.092%) SMTP
13 3 (0.092%) Software-Defined Networking
14 2 (0.062%) MQTT
Database & Business Intelligence
1 397 (12.22%) SQL Server
2 228 (7.02%) NoSQL
3 221 (6.80%) PostgreSQL
4 185 (5.70%) MySQL
5 171 (5.26%) MongoDB
6 160 (4.93%) Relational Database
7 101 (3.11%) Big Data
8 72 (2.22%) Amazon RDS
9 66 (2.03%) Hadoop
10 59 (1.82%) Power BI
11 58 (1.79%) Data Warehouse
12 57 (1.75%) Azure SQL Database
13 55 (1.69%) Redis
14 54 (1.66%) Apache Cassandra
15 50 (1.54%) Cosmos DB
16 47 (1.45%) Amazon DynamoDB
17 45 (1.39%) SQL Server Integration Services
18 39 (1.20%) HBase
19 37 (1.14%) SQL Server Analysis Services
20 35 (1.08%) RDBMS
Development Applications
1 745 (22.94%) Git (software)
2 504 (15.52%) Jenkins
3 327 (10.07%) JIRA
4 244 (7.51%) JUnit
5 235 (7.24%) Maven
6 203 (6.25%) Selenium
7 170 (5.23%) Cucumber
8 141 (4.34%) Mockito
9 123 (3.79%) TeamCity
10 106 (3.26%) Team Foundation Server
11 98 (3.02%) GitLab
12 91 (2.80%) Visual Studio Team System
13 83 (2.56%) SonarQube
14 80 (2.46%) Gradle
15 79 (2.43%) Octopus Deploy
16 73 (2.25%) NUnit
17 68 (2.09%) jMock
18 66 (2.03%) Visual Studio
19 63 (1.94%) Moq
20 62 (1.91%) SpecFlow
General
1 542 (16.69%) Finance
2 289 (8.90%) Banking
3 168 (5.17%) Front Office
4 149 (4.59%) Public Sector
5 93 (2.86%) Retail
6 87 (2.68%) Marketing
7 80 (2.46%) Investment Banking
8 45 (1.39%) Telecoms
9 37 (1.14%) Law
10 33 (1.02%) Manufacturing
11 28 (0.86%) Electronics
12 26 (0.80%) Military
13 21 (0.65%) Games
14 20 (0.62%) Legal
15 19 (0.58%) Publishing
16 18 (0.55%) Advertising
17 17 (0.52%) Financial Institution
17 17 (0.52%) Retail Banking
18 15 (0.46%) Automotive
19 13 (0.40%) Back Office
Job Titles
1 2,476 (76.23%) Developer
2 698 (21.49%) Java Developer
3 388 (11.95%) .NET Developer
4 369 (11.36%) Senior Developer
5 317 (9.76%) C# Developer
6 269 (8.28%) Full Stack Developer
7 263 (8.10%) React Developer
8 159 (4.90%) JavaScript Developer
9 156 (4.80%) Front End Developer (Client-Side Developer)
10 154 (4.74%) Python Developer
11 138 (4.25%) AWS Developer
12 134 (4.13%) Angular Developer
13 129 (3.97%) C# .NET Developer
14 127 (3.91%) Senior Java Developer
15 125 (3.85%) Software Engineer
16 105 (3.23%) Agile Developer
17 103 (3.17%) Software Developer
18 90 (2.77%) Azure Developer
19 77 (2.37%) Architect
19 77 (2.37%) Scala Developer
Libraries, Frameworks & Software Standards
1 765 (23.55%) .NET
2 688 (21.18%) AngularJS
3 659 (20.29%) HTML
4 610 (18.78%) CSS
5 589 (18.13%) Spring
6 585 (18.01%) React
7 510 (15.70%) RESTful
8 419 (12.90%) Web Services
9 411 (12.65%) Node.js
10 382 (11.76%) REST
11 318 (9.79%) Spring Boot
12 269 (8.28%) Kafka
13 258 (7.94%) ASP.NET
14 233 (7.17%) HTML5
15 223 (6.87%) .NET Core
16 205 (6.31%) SOAP
17 177 (5.45%) Redux
18 167 (5.14%) .NET Framework
19 157 (4.83%) Vue.js
20 156 (4.80%) ASP.NET Web API
Miscellaneous
1 300 (9.24%) Greenfield Project
2 171 (5.26%) Analytical Skills
3 152 (4.68%) User Experience
4 112 (3.45%) Enterprise Software
5 103 (3.17%) Mobile App
6 100 (3.08%) Foreign Exchange (FX)
7 73 (2.25%) Equities
8 68 (2.09%) Algorithms
9 64 (1.97%) Hedge funds
10 49 (1.51%) Data Structures
11 45 (1.39%) Fixed Income
12 43 (1.32%) Derivative
13 31 (0.95%) Linux Command Line
14 29 (0.89%) Cloud Native
15 28 (0.86%) Management Information System
16 24 (0.74%) Data Centre
16 24 (0.74%) Self-Motivation
17 23 (0.71%) Public Cloud
18 22 (0.68%) Virtual Team
19 17 (0.52%) N-Tier
Operating Systems
1 246 (7.57%) Linux
2 158 (4.86%) Unix
3 131 (4.03%) Android
4 108 (3.33%) Apple iOS
5 73 (2.25%) Windows
6 40 (1.23%) Mac OS X
7 13 (0.40%) Windows Server
8 12 (0.37%) AIX
9 10 (0.31%) Mac OS
10 9 (0.28%) Red Hat Enterprise Linux
11 7 (0.22%) Embedded Linux
12 4 (0.12%) CentOS
12 4 (0.12%) tvOS
13 3 (0.092%) Solaris
13 3 (0.092%) Ubuntu
14 2 (0.062%) Windows 10
15 1 (0.031%) Debian
15 1 (0.031%) HPUX
15 1 (0.031%) SUSE Linux Enterprise Server
15 1 (0.031%) zOS
Processes & Methodologies
1 2,303 (70.91%) Agile Software Development
2 1,207 (37.16%) BDD
3 843 (25.95%) Scrum
4 814 (25.06%) Microservices
5 712 (21.92%) Continuous Integration
6 682 (21.00%) DevOps
7 642 (19.77%) Test Automation
8 439 (13.52%) Software Engineering
9 416 (12.81%) Pair Programming
10 396 (12.19%) Kanban
11 332 (10.22%) OO
12 330 (10.16%) MVC
13 278 (8.56%) Front End Development
14 254 (7.82%) Continuous Delivery
15 253 (7.79%) Unit Testing
16 243 (7.48%) Open Source
17 238 (7.33%) SOLID
18 207 (6.37%) User Stories
19 193 (5.94%) Problem-Solving
20 189 (5.82%) OOP
Programming Languages
1 1,247 (38.39%) Java
2 1,104 (33.99%) JavaScript
3 807 (24.85%) C#
4 600 (18.47%) SQL
5 422 (12.99%) Python
6 318 (9.79%) Java 8
7 208 (6.40%) TypeScript
8 193 (5.94%) Ruby
9 167 (5.14%) Scala
10 156 (4.80%) ES6
11 112 (3.45%) Kotlin
12 106 (3.26%) C++
13 102 (3.14%) PHP
14 81 (2.49%) C
15 73 (2.25%) PowerShell
16 72 (2.22%) T-SQL
17 65 (2.00%) Go
18 56 (1.72%) Bash Shell
19 54 (1.66%) Apple Swift
20 46 (1.42%) Groovy
Qualifications
1 257 (7.91%) Security Cleared
2 185 (5.70%) SC Cleared
3 145 (4.46%) Degree
4 60 (1.85%) Computer Science Degree
5 39 (1.20%) DV Cleared
6 36 (1.11%) BPSS Clearance
7 27 (0.83%) ISTQB
8 16 (0.49%) BC Cleared
9 15 (0.46%) Master's Degree
10 14 (0.43%) ISEB
11 13 (0.40%) DBS Check
12 10 (0.31%) Microsoft Certification
13 8 (0.25%) ISTQB Foundation Certification
14 7 (0.22%) MCSE
15 5 (0.15%) AWS Certification
16 3 (0.092%) IIBA
16 3 (0.092%) PMP
17 2 (0.062%) CRISC
17 2 (0.062%) CTC Cleared
17 2 (0.062%) PMI Certification
Quality Assurance & Compliance
1 164 (5.05%) QA
2 24 (0.74%) WCAG
3 14 (0.43%) Data Quality
4 8 (0.25%) Disclosure Scotland
5 6 (0.18%) GDPR
6 4 (0.12%) PMO
7 3 (0.092%) MiFID
8 2 (0.062%) EMIR
9 1 (0.031%) IFRS
9 1 (0.031%) PCI DSS
System Software
1 453 (13.95%) Docker
2 48 (1.48%) Postfix
3 40 (1.23%) Active Directory
4 29 (0.89%) HDFS
5 22 (0.68%) VMware Infrastructure
6 20 (0.62%) vSphere
7 14 (0.43%) Virtual Machines
8 12 (0.37%) Tivoli Workload Scheduler
9 10 (0.31%) NDS
10 8 (0.25%) NetIQ eDirectory
11 3 (0.092%) BusyBox
12 2 (0.062%) Apache ZooKeeper
12 2 (0.062%) Firmware
12 2 (0.062%) Varnish
13 1 (0.031%) Apache Flume
13 1 (0.031%) LXC
13 1 (0.031%) VMware ESXi
Systems Management
1 277 (8.53%) Kubernetes
2 108 (3.33%) Terraform
3 99 (3.05%) Ansible
4 31 (0.95%) Puppet
5 25 (0.77%) Opscode Chef
6 22 (0.68%) Hadoop YARN
7 20 (0.62%) MIIS
8 15 (0.46%) NetIQ Identity Manager
8 15 (0.46%) Tivoli
9 13 (0.40%) Kibana
10 12 (0.37%) Docker Swarm
10 12 (0.37%) Grafana
11 8 (0.25%) Prometheus
11 8 (0.25%) Single Sign-On
12 7 (0.22%) Oracle Identity Manager
13 6 (0.18%) Control-M
13 6 (0.18%) logstash
14 4 (0.12%) Mesos
14 4 (0.12%) Packer
15 3 (0.092%) Rundeck
Vendors
1 290 (8.93%) Microsoft
2 168 (5.17%) Oracle
3 111 (3.42%) Google
4 66 (2.03%) SAP
5 45 (1.39%) Atlassian
6 37 (1.14%) IBM
7 35 (1.08%) Remedy
7 35 (1.08%) Tableau
8 33 (1.02%) hybris
9 29 (0.89%) VMware
10 27 (0.83%) Apple
11 25 (0.77%) Adobe
12 23 (0.71%) DevExpress
13 22 (0.68%) Cognos
14 19 (0.58%) ForgeRock
14 19 (0.58%) MicroStrategy
14 19 (0.58%) MuleSoft
14 19 (0.58%) NetIQ
14 19 (0.58%) Salesforce.com
15 18 (0.55%) Xamarin