Period
to

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 22 May 2022 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
22 May 2022
Same period 2021 Same period 2020
Rank 51 41 42
Rank change year-on-year -10 +1 -19
Contract jobs citing TDD 3,028 2,392 2,250
As % of all contract jobs advertised in England 4.30% 5.15% 5.22%
As % of the Processes & Methodologies category 4.80% 5.80% 6.02%
Number of daily rates quoted 2,250 1,793 1,766
10th Percentile £408 £400 £406
25th Percentile £482 £459 £463
Median daily rate (50th Percentile) £600 £540 £525
Median % change year-on-year +11.11% +2.86% -
75th Percentile £681 £619 £600
90th Percentile £753 £675 £688
UK median daily rate £575 £525 £525
% change year-on-year +9.52% - +2.44%
Number of hourly rates quoted 54 34 21
10th Percentile £35.00 £45.00 £45.00
25th Percentile £45.31 £58.00 £52.00
Median hourly rate £69.08 £64.50 £61.50
Median % change year-on-year +7.10% +4.88% +27.07%
75th Percentile £76.91 £68.00 £63.75
90th Percentile £78.38 £70.85 £69.50
UK median hourly rate £67.36 £60.50 £61.50
% change year-on-year +11.34% -1.63% +27.07%

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 63,099 41,264 37,389
As % of all contract IT jobs advertised in England 89.60% 88.77% 86.70%
Number of daily rates quoted 44,913 28,429 25,235
10th Percentile £350 £313 £300
25th Percentile £435 £400 £388
Median daily rate (50th Percentile) £540 £500 £475
Median % change year-on-year +8.00% +5.26% -
75th Percentile £650 £588 £575
90th Percentile £750 £688 £675
UK median daily rate £538 £495 £475
% change year-on-year +8.59% +4.21% -
Number of hourly rates quoted 1,594 1,272 1,063
10th Percentile £13.00 £11.75 £12.42
25th Percentile £16.25 £15.25 £15.80
Median hourly rate £26.99 £24.50 £21.57
Median % change year-on-year +10.16% +13.58% -4.13%
75th Percentile £51.00 £46.00 £45.00
90th Percentile £65.18 £58.75 £53.75
UK median hourly rate £27.73 £25.31 £22.50
% change year-on-year +9.56% +12.49% -

TDD
Job Vacancy Trend in England

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

Job vacancy trend for TDD in England

TDD
Contractor Daily Rate Trend in England

3-month moving average daily rate quoted in jobs citing TDD in England.

Daily rate trend for TDD in England

TDD
Daily Rate Histogram in England

Daily rate distribution for jobs citing TDD in England over the 6 months to 22 May 2022.

Daily rate histogram for TDD in England

TDD
Contractor Hourly Rate Trend in England

3-month moving average hourly rates quoted in jobs citing TDD in England.

Hourly rate trend for TDD in England

TDD
Hourly Rate Histogram in England

Hourly rate distribution of jobs citing TDD in England over the 6 months to 22 May 2022.

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 22 May 2022. 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
Jobs
London -16 2,064 £625 +13.64% 456
North of England +16 338 £500 +8.11% 177
North West +34 245 £500 +11.11% 136
South East -33 155 £500 +9.29% 107
Midlands -13 108 £500 +11.11% 51
South West -24 89 £500 - 51
West Midlands -21 80 £519 +15.28% 37
Yorkshire -16 76 £500 +2.04% 25
East of England -14 71 £580 +16.00% 34
East Midlands -11 26 £500 +24.22% 14
North East -15 24 £500 +5.26% 17
TDD
UK

For the 6 months to 22 May 2022, 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 2,055 (67.87%) Agile
2 1,195 (39.46%) Java
3 1,052 (34.74%) BDD
4 994 (32.83%) CI/CD
5 934 (30.85%) Microservices
6 905 (29.89%) JavaScript
7 780 (25.76%) Scrum
8 724 (23.91%) Azure
9 717 (23.68%) DevOps
10 700 (23.12%) AWS
11 683 (22.56%) Test Automation
12 682 (22.52%) .NET
13 675 (22.29%) C#
14 634 (20.94%) Git (software)
15 600 (19.82%) SQL
16 579 (19.12%) Continuous Integration
17 573 (18.92%) Software Engineering
18 570 (18.82%) Docker
19 562 (18.56%) React
20 538 (17.77%) Kubernetes
21 528 (17.44%) Finance
22 510 (16.84%) Spring
23 505 (16.68%) HTML
24 495 (16.35%) Jenkins
25 484 (15.98%) CSS
26 479 (15.82%) Social Skills
27 473 (15.62%) Python
28 422 (13.94%) TypeScript
29 408 (13.47%) Pair Programming
30 401 (13.24%) REST

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
1 153 (5.05%) Confluence
2 113 (3.73%) Apache Spark
3 71 (2.34%) Elasticsearch
4 51 (1.68%) Apache
5 43 (1.42%) CMS
6 39 (1.29%) Apache Airflow
7 34 (1.12%) Cloud Foundry
7 34 (1.12%) Mule
8 31 (1.02%) JBoss
9 28 (0.92%) SharePoint
10 25 (0.83%) Red Hat Fuse
11 23 (0.76%) IIS
12 21 (0.69%) nginx
13 20 (0.66%) Sitecore CMS
14 17 (0.56%) Tomcat
15 16 (0.53%) Drupal
16 15 (0.50%) BizTalk Server
16 15 (0.50%) WebSphere
17 13 (0.43%) Adobe Experience Manager
18 10 (0.33%) WebSphere Application Server
Applications
1 11 (0.36%) Microsoft Excel
2 9 (0.30%) Microsoft Office
3 2 (0.066%) Photoshop
4 1 (0.033%) 3ds Max
4 1 (0.033%) Maya
4 1 (0.033%) Microsoft PowerPoint
4 1 (0.033%) Microsoft Project
4 1 (0.033%) MS Visio
Business Applications
1 12 (0.40%) Dynamics CRM
2 5 (0.17%) Payment Gateway
2 5 (0.17%) SAP S/4HANA
3 4 (0.13%) Distributed Ledger
3 4 (0.13%) Endur
3 4 (0.13%) Salesforce.com CRM
3 4 (0.13%) Shopify
4 3 (0.099%) Magento
4 3 (0.099%) Oracle Procure-to-Pay
4 3 (0.099%) SAP FI
4 3 (0.099%) SAP IS-U
5 1 (0.033%) Dynamics AX
5 1 (0.033%) Dynamics NAV
5 1 (0.033%) IBM Planning Analytics
5 1 (0.033%) Oracle Financials
5 1 (0.033%) Primavera
5 1 (0.033%) RMDS
5 1 (0.033%) SAP CO
5 1 (0.033%) SAP ERP
5 1 (0.033%) SAP Oil and Gas
Cloud Services
1 724 (23.91%) Azure
2 700 (23.12%) AWS
3 240 (7.93%) GitHub
4 175 (5.78%) GCP
5 157 (5.18%) Serverless
6 104 (3.43%) AWS Lambda
7 80 (2.64%) PaaS
8 64 (2.11%) Azure Service Bus
9 60 (1.98%) IaaS
10 55 (1.82%) Amazon S3
10 55 (1.82%) SaaS
11 50 (1.65%) Amazon SQS
12 48 (1.59%) Amazon EC2
13 44 (1.45%) AWS CloudFormation
14 43 (1.42%) Amazon EKS
15 38 (1.25%) npm
16 35 (1.16%) OpenShift
16 35 (1.16%) Power Platform
17 32 (1.06%) Azure Cosmos DB
18 30 (0.99%) Azure Data Factory
Communications & Networking
1 43 (1.42%) HTTP
2 32 (1.06%) TCP/IP
3 31 (1.02%) RTMP
4 27 (0.89%) Ethernet
5 26 (0.86%) MQTT
6 12 (0.40%) Internet
7 8 (0.26%) Firewall
8 7 (0.23%) HTTPS
9 5 (0.17%) Bluetooth
9 5 (0.17%) Intrusion Detection
10 4 (0.13%) Broadband
10 4 (0.13%) DNS
10 4 (0.13%) FIX Connectivity
11 3 (0.099%) 4G
11 3 (0.099%) AMQP
11 3 (0.099%) ATM
11 3 (0.099%) FTP
11 3 (0.099%) LAN
11 3 (0.099%) SSL
12 2 (0.066%) LTE
Database & Business Intelligence
1 337 (11.13%) SQL Server
2 243 (8.03%) NoSQL
3 196 (6.47%) Relational Database
4 187 (6.18%) PostgreSQL
5 180 (5.94%) MongoDB
6 106 (3.50%) Big Data
7 101 (3.34%) MySQL
8 62 (2.05%) Amazon DynamoDB
9 58 (1.92%) Redis
10 48 (1.59%) RDBMS
11 44 (1.45%) Azure SQL Database
12 33 (1.09%) Oracle Database
13 29 (0.96%) Amazon RDS
14 27 (0.89%) Amazon Redshift
14 27 (0.89%) Delta Lake
15 26 (0.86%) Data Warehouse
16 25 (0.83%) Hadoop
17 23 (0.76%) Data Lake
18 22 (0.73%) Power BI
19 21 (0.69%) SQL Server Integration Services
Development Applications
1 634 (20.94%) Git (software)
2 495 (16.35%) Jenkins
3 375 (12.38%) JIRA
4 238 (7.86%) Maven
5 184 (6.08%) JUnit
6 160 (5.28%) Cucumber
7 157 (5.18%) Selenium
8 134 (4.43%) GitLab
9 117 (3.86%) Gradle
10 110 (3.63%) TeamCity
11 94 (3.10%) Mockito
12 75 (2.48%) Visual Studio
13 66 (2.18%) Bitbucket
14 61 (2.01%) Artifactory
15 59 (1.95%) Eclipse
15 59 (1.95%) SpecFlow
16 53 (1.75%) Cypress.io
16 53 (1.75%) Sonatype Nexus
17 52 (1.72%) SonarQube
18 48 (1.59%) Postman
General
1 528 (17.44%) Finance
2 479 (15.82%) Social Skills
3 320 (10.57%) Banking
4 211 (6.97%) Front Office
5 207 (6.84%) Public Sector
6 147 (4.85%) Investment Banking
7 121 (4.00%) Analytical Skills
8 103 (3.40%) Games
9 64 (2.11%) Retail
10 45 (1.49%) Presentation Skills
11 40 (1.32%) Back Office
12 39 (1.29%) Publishing
13 29 (0.96%) Legal
14 28 (0.92%) Marketing
15 27 (0.89%) Telecoms
16 20 (0.66%) Automotive
16 20 (0.66%) Law
17 18 (0.59%) Influencing Skills
18 15 (0.50%) Manufacturing
19 13 (0.43%) Retail Banking
Job Titles
1 2,051 (67.73%) Developer
2 650 (21.47%) Java Developer
3 390 (12.88%) Senior Developer
4 306 (10.11%) .NET Developer
5 195 (6.44%) Full Stack Developer
6 183 (6.04%) C# Developer
7 181 (5.98%) Software Engineer
8 163 (5.38%) Python Developer
9 155 (5.12%) Senior Java Developer
10 145 (4.79%) React Developer
11 116 (3.83%) Front End Developer (Client-Side Developer)
12 103 (3.40%) Software Developer
13 99 (3.27%) C# .NET Developer
14 93 (3.07%) Java Engineer
15 87 (2.87%) Scala Developer
16 86 (2.84%) JavaScript Developer
17 81 (2.68%) Data Engineer
18 67 (2.21%) DevOps Engineer
19 61 (2.01%) Azure Developer
20 60 (1.98%) Scrum Master
Libraries, Frameworks & Software Standards
1 682 (22.52%) .NET
2 562 (18.56%) React
3 510 (16.84%) Spring
4 505 (16.68%) HTML
5 484 (15.98%) CSS
6 401 (13.24%) REST
7 354 (11.69%) Spring Boot
8 307 (10.14%) Kafka
9 295 (9.74%) AngularJS
9 295 (9.74%) RESTful
10 293 (9.68%) Node.js
11 213 (7.03%) .NET Core
12 194 (6.41%) Web Services
13 187 (6.18%) HTML5
14 165 (5.45%) JSON
15 159 (5.25%) .NET Framework
16 145 (4.79%) ASP.NET
17 142 (4.69%) Redux
18 119 (3.93%) Hibernate
19 114 (3.76%) XML
Miscellaneous
1 159 (5.25%) User Experience
2 152 (5.02%) Greenfield Project
3 94 (3.10%) Foreign Exchange (FX)
4 92 (3.04%) Cloud Native
5 78 (2.58%) Fixed Income
6 65 (2.15%) Hedge funds
7 60 (1.98%) Legacy Code
7 60 (1.98%) Mobile App
8 53 (1.75%) Derivative
8 53 (1.75%) Self-Motivation
9 52 (1.72%) Video\Live Streaming
10 47 (1.55%) Data Protection Act
11 45 (1.49%) Algorithms
12 43 (1.42%) Media Streaming
13 39 (1.29%) Virtual Team
14 37 (1.22%) Equities
15 36 (1.19%) Data Structures
16 32 (1.06%) Enterprise Software
17 30 (0.99%) IoT
18 29 (0.96%) Public Cloud
Operating Systems
1 294 (9.71%) Linux
2 126 (4.16%) Unix
3 103 (3.40%) Windows
4 87 (2.87%) Android
5 81 (2.68%) Apple iOS
6 32 (1.06%) Mac OS X
7 11 (0.36%) Red Hat Enterprise Linux
8 8 (0.26%) Windows Server
9 4 (0.13%) Mac OS
9 4 (0.13%) Ubuntu
10 3 (0.099%) Windows 10
11 2 (0.066%) MVS
11 2 (0.066%) Windows Server 2016
12 1 (0.033%) Debian
12 1 (0.033%) OpenWrt
12 1 (0.033%) tvOS
Processes & Methodologies
1 2,055 (67.87%) Agile
2 1,052 (34.74%) BDD
3 994 (32.83%) CI/CD
4 934 (30.85%) Microservices
5 780 (25.76%) Scrum
6 717 (23.68%) DevOps
7 683 (22.56%) Test Automation
8 579 (19.12%) Continuous Integration
9 573 (18.92%) Software Engineering
10 408 (13.47%) Pair Programming
11 384 (12.68%) Full Stack Development
12 302 (9.97%) OO
13 290 (9.58%) Kanban
14 279 (9.21%) Unit Testing
15 273 (9.02%) Problem-Solving
16 250 (8.26%) Continuous Delivery
17 230 (7.60%) SOLID
18 226 (7.46%) Mentoring
19 217 (7.17%) Front End Development
20 197 (6.51%) SDLC
Programming Languages
1 1,195 (39.46%) Java
2 905 (29.89%) JavaScript
3 675 (22.29%) C#
4 600 (19.82%) SQL
5 473 (15.62%) Python
6 422 (13.94%) TypeScript
7 169 (5.58%) Scala
8 154 (5.09%) Kotlin
9 95 (3.14%) Go
10 83 (2.74%) C++
11 67 (2.21%) PowerShell
12 62 (2.05%) PHP
13 56 (1.85%) C
14 49 (1.62%) Groovy
15 47 (1.55%) ES6
16 46 (1.52%) Ruby
17 45 (1.49%) T-SQL
18 43 (1.42%) VB.NET
19 42 (1.39%) Apple Swift
19 42 (1.39%) Shell Script
Qualifications
1 274 (9.05%) Security Cleared
2 236 (7.79%) SC Cleared
3 116 (3.83%) Degree
4 36 (1.19%) Computer Science Degree
5 29 (0.96%) BPSS Clearance
6 19 (0.63%) ISTQB
7 13 (0.43%) ISTQB Foundation Certification
8 10 (0.33%) DV Cleared
9 9 (0.30%) ISEB
10 8 (0.26%) AWS Certification
11 5 (0.17%) CEH
11 5 (0.17%) CISM
11 5 (0.17%) CISSP
11 5 (0.17%) Microsoft Certification
12 4 (0.13%) Master's Degree
13 3 (0.099%) CFA
13 3 (0.099%) HNC
13 3 (0.099%) MCAD
13 3 (0.099%) Numerate Degree
13 3 (0.099%) PhD
Quality Assurance & Compliance
1 210 (6.94%) QA
2 82 (2.71%) Accessibility
3 12 (0.40%) GDPR
4 7 (0.23%) Data Quality
4 7 (0.23%) WCAG
5 4 (0.13%) MiFID
5 4 (0.13%) SLA
6 3 (0.099%) Disclosure Scotland
7 1 (0.033%) ISO 20022
7 1 (0.033%) PMO
7 1 (0.033%) WAI
System Software
1 570 (18.82%) Docker
2 24 (0.79%) Active Directory
3 9 (0.30%) HDFS
4 8 (0.26%) Virtual Machines
5 7 (0.23%) Postfix
6 6 (0.20%) VirtualBox
6 6 (0.20%) VMware Infrastructure
7 4 (0.13%) vSphere
8 2 (0.066%) NDS
8 2 (0.066%) NetIQ eDirectory
8 2 (0.066%) OpenAM
8 2 (0.066%) zsh
9 1 (0.033%) Apache Flume
9 1 (0.033%) OpenDJ
9 1 (0.033%) Virtual Desktop
Systems Management
1 538 (17.77%) Kubernetes
2 276 (9.11%) Terraform
3 145 (4.79%) Ansible
4 57 (1.88%) Grafana
5 53 (1.75%) Prometheus
6 40 (1.32%) Puppet
7 19 (0.63%) Docker Swarm
7 19 (0.63%) Istio
8 16 (0.53%) Netcool
9 14 (0.46%) Kibana
10 9 (0.30%) Opscode Chef
11 6 (0.20%) Active Directory Federation Services
11 6 (0.20%) logstash
12 5 (0.17%) HP Quality Center
12 5 (0.17%) Rancher
13 3 (0.099%) AirWatch
14 2 (0.066%) Argo
14 2 (0.066%) Control-M
14 2 (0.066%) ITRS Geneos
14 2 (0.066%) ZABBIX
Vendors
1 274 (9.05%) Microsoft
2 169 (5.58%) Oracle
3 71 (2.34%) Google
4 65 (2.15%) Salesforce.com
5 62 (2.05%) Databricks
6 44 (1.45%) Splunk
7 37 (1.22%) AppDynamics
8 30 (0.99%) Atlassian
9 29 (0.96%) DevExpress
10 27 (0.89%) Telerik
11 25 (0.83%) New Relic
11 25 (0.83%) Sybase
12 24 (0.79%) Apple
13 23 (0.76%) Sitecore
14 22 (0.73%) IBM
15 19 (0.63%) Adobe
16 18 (0.59%) SAP
17 17 (0.56%) Red Hat
18 15 (0.50%) Salesforce Marketing Cloud
19 11 (0.36%) ForgeRock