Period
to 8 August 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 8 August 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
8 Aug 2020
Same period 2019 Same period 2018
Rank 39 23 17
Rank change year-on-year -16 -6 0
Contract jobs citing TDD 1,634 5,516 7,556
As % of all contract jobs advertised in England 5.23% 6.64% 8.06%
As % of the Processes & Methodologies category 6.05% 7.62% 9.27%
Number of daily rates quoted 1,239 4,272 5,997
Median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +5.26%
10th Percentile £388 £400 £363
90th Percentile £675 £675 £638
UK median daily rate £525 £525 £500
% change year-on-year - +5.00% +5.26%
Number of hourly rates quoted 23 9 25
Median hourly rate £55.00 £35.00 £45.00
Median hourly rate % change year-on-year +57.14% -22.22% +8.43%
10th Percentile £35.00 £30.65 £21.30
90th Percentile £68.71 £45.60 £67.59
UK median hourly rate £55.00 £35.00 £45.00
% change year-on-year +57.14% -22.22% +8.43%

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 26,992 72,424 81,493
As % of all contract IT jobs advertised in England 86.39% 87.15% 86.98%
Number of daily rates quoted 17,161 48,167 54,232
Median daily rate £488 £475 £463
Median daily rate % change year-on-year +2.63% +2.70% +2.78%
10th Percentile £300 £300 £300
90th Percentile £675 £650 £638
UK median daily rate £475 £475 £450
% change year-on-year - +5.56% -
Number of hourly rates quoted 942 2,004 2,194
Median hourly rate £35.00 £25.00 £21.50
Median hourly rate % change year-on-year +40.00% +16.28% -6.81%
10th Percentile £12.75 £11.85 £11.25
90th Percentile £53.75 £53.75 £50.00
Median hourly rate £35.00 £24.50 £21.37
% change year-on-year +42.86% +14.66% -10.97%

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 8 August 2020.

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 8 August 2020.

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 8 August 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 -14 1,046 £550 - 339
North of England -12 170 £525 +16.67% 162
South West +25 125 £525 +13.51% 60
East of England -4 110 £495 +10.00% 28
South East -52 97 £463 -2.63% 118
Yorkshire +8 86 £525 +9.09% 42
Midlands -9 77 £415 -7.78% 69
North West -18 70 £500 +17.65% 105
West Midlands -14 52 £432 -6.59% 49
East Midlands +6 24 £317 -18.32% 20
North East -4 14 £543 +27.65% 15
TDD
UK

For the 6 months to 8 August 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 1,216 (74.42%) Agile Software Development
2 797 (48.78%) Java
3 684 (41.86%) BDD
4 520 (31.82%) JavaScript
5 474 (29.01%) Microservices
6 465 (28.46%) AWS
7 417 (25.52%) Test Automation
8 412 (25.21%) DevOps
9 405 (24.79%) Azure
10 404 (24.72%) Scrum
11 331 (20.26%) Continuous Integration
12 322 (19.71%) Docker
13 311 (19.03%) Git (software)
14 291 (17.81%) SQL
15 289 (17.69%) React
16 286 (17.50%) Pair Programming
17 284 (17.38%) HTML
18 274 (16.77%) Spring
19 272 (16.65%) Node.js
20 268 (16.40%) AngularJS
21 265 (16.22%) C#
21 265 (16.22%) Finance
22 255 (15.61%) .NET
23 254 (15.54%) Jenkins
24 248 (15.18%) Security Cleared
25 247 (15.12%) Python
26 245 (14.99%) CSS
27 235 (14.38%) Kubernetes
28 225 (13.77%) Java 8
29 214 (13.10%) Web Services

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
1 114 (6.98%) Confluence
2 65 (3.98%) Elasticsearch
3 42 (2.57%) Mule
4 39 (2.39%) Oracle SOA Suite
5 38 (2.33%) Apache Spark
5 38 (2.33%) Red Hat Fuse
6 26 (1.59%) JBoss
6 26 (1.59%) Oracle Service Bus
7 25 (1.53%) WebLogic
8 17 (1.04%) Apache
8 17 (1.04%) IIS
9 14 (0.86%) Apache Solr
9 14 (0.86%) CMS
9 14 (0.86%) Tomcat
10 13 (0.80%) SharePoint
11 9 (0.55%) Oracle Coherence
12 8 (0.49%) Cloud Foundry
13 6 (0.37%) Jetty
14 5 (0.31%) MQSeries
14 5 (0.31%) Oracle Self-Service HR
Applications
1 18 (1.10%) Microsoft Excel
2 8 (0.49%) Microsoft Office
3 1 (0.061%) Adobe Illustrator
3 1 (0.061%) Chatbot
3 1 (0.061%) MS Visio
3 1 (0.061%) Photoshop
3 1 (0.061%) Sketch
Business Applications
1 5 (0.31%) Sparx Enterprise Architect
2 4 (0.24%) Magento
3 3 (0.18%) Dynamics CRM
3 3 (0.18%) SAP Hybris
4 2 (0.12%) ION MarketView
4 2 (0.12%) Salesforce.com CRM
4 2 (0.12%) SAP FI-CA
4 2 (0.12%) Shopify
5 1 (0.061%) FINCAD Analytics
5 1 (0.061%) Oracle Subledger Accounting
5 1 (0.061%) Payment Gateway
5 1 (0.061%) SAP S/4HANA
Cloud Services
1 465 (28.46%) AWS
2 405 (24.79%) Azure
3 89 (5.45%) Serverless
4 61 (3.73%) GitHub
5 60 (3.67%) GCP
6 55 (3.37%) Amazon EC2
7 44 (2.69%) AWS Lambda
8 43 (2.63%) Amazon S3
9 27 (1.65%) AWS CloudFormation
10 23 (1.41%) OpenShift
10 23 (1.41%) SaaS
11 20 (1.22%) Amazon ECS
11 20 (1.22%) PaaS
12 19 (1.16%) Amazon CloudWatch
13 17 (1.04%) npm
14 16 (0.98%) Amazon Cognito
14 16 (0.98%) Amazon EMR
15 15 (0.92%) Azure Functions
16 14 (0.86%) Amazon SQS
17 11 (0.67%) BlazeMeter
Communications & Networking
1 44 (2.69%) HTTP
2 12 (0.73%) SSL
3 11 (0.67%) Skype
3 11 (0.67%) TCP/IP
4 9 (0.55%) DNS
5 7 (0.43%) Internet
6 6 (0.37%) SSH
7 4 (0.24%) FTP
7 4 (0.24%) RTMP
8 2 (0.12%) DHCP
8 2 (0.12%) DSL
8 2 (0.12%) Firewall
8 2 (0.12%) FIX Connectivity
8 2 (0.12%) Intrusion Detection
8 2 (0.12%) LAN
8 2 (0.12%) MQTT
8 2 (0.12%) SMS
8 2 (0.12%) WAN
9 1 (0.061%) RNC
9 1 (0.061%) SIGTRAN
Database & Business Intelligence
1 156 (9.55%) MongoDB
2 144 (8.81%) SQL Server
3 91 (5.57%) NoSQL
4 81 (4.96%) Relational Database
5 75 (4.59%) MySQL
6 64 (3.92%) PostgreSQL
7 43 (2.63%) Big Data
8 38 (2.33%) Hadoop
9 25 (1.53%) Amazon DynamoDB
9 25 (1.53%) Redis
10 22 (1.35%) Amazon RDS
11 21 (1.29%) Oracle Database
12 18 (1.10%) Cosmos DB
13 17 (1.04%) RDBMS
14 16 (0.98%) Apache Cassandra
15 15 (0.92%) Data Lake
15 15 (0.92%) Data Warehouse
16 14 (0.86%) Azure SQL Database
17 11 (0.67%) Apache Hive
18 9 (0.55%) SQL Server Integration Services
Development Applications
1 311 (19.03%) Git (software)
2 254 (15.54%) Jenkins
3 186 (11.38%) JIRA
4 155 (9.49%) Maven
5 150 (9.18%) Cucumber
6 121 (7.41%) Selenium
7 114 (6.98%) JUnit
8 96 (5.88%) Subversion
9 86 (5.26%) GitLab
10 78 (4.77%) Mockito
11 67 (4.10%) TeamCity
12 62 (3.79%) SoapUI
13 55 (3.37%) Jasmine
14 53 (3.24%) Mocha
15 48 (2.94%) Bitbucket
15 48 (2.94%) JMeter
16 41 (2.51%) Gradle
16 41 (2.51%) gulp
17 39 (2.39%) Grunt
18 34 (2.08%) Zephyr
General
1 265 (16.22%) Finance
2 188 (11.51%) Banking
3 186 (11.38%) Public Sector
4 131 (8.02%) Front Office
5 86 (5.26%) Investment Banking
6 56 (3.43%) Marketing
6 56 (3.43%) Telecoms
7 47 (2.88%) Electronics
7 47 (2.88%) Manufacturing
8 17 (1.04%) Games
8 17 (1.04%) Retail
9 14 (0.86%) Financial Institution
10 12 (0.73%) Automotive
11 8 (0.49%) Advertising
12 6 (0.37%) Law
12 6 (0.37%) Legal
12 6 (0.37%) Publishing
13 5 (0.31%) Back Office
14 4 (0.24%) Police
14 4 (0.24%) Retail Banking
Job Titles
1 1,171 (71.66%) Developer
2 424 (25.95%) Java Developer
3 170 (10.40%) Senior Developer
4 137 (8.38%) React Developer
5 125 (7.65%) .NET Developer
6 120 (7.34%) JavaScript Developer
7 111 (6.79%) C# Developer
8 89 (5.45%) Front End Developer (Client-Side Developer)
9 88 (5.39%) Senior Java Developer
10 87 (5.32%) Full Stack Developer
11 69 (4.22%) Python Developer
12 63 (3.86%) Architect
13 54 (3.30%) Tester
14 53 (3.24%) AWS Developer
15 50 (3.06%) Azure Developer
15 50 (3.06%) HTML Developer
15 50 (3.06%) UI Developer
16 49 (3.00%) Lead Developer
17 47 (2.88%) DevOps Engineer
18 46 (2.82%) Test Engineer
Libraries, Frameworks & Software Standards
1 289 (17.69%) React
2 284 (17.38%) HTML
3 274 (16.77%) Spring
4 272 (16.65%) Node.js
5 268 (16.40%) AngularJS
6 255 (15.61%) .NET
7 245 (14.99%) CSS
8 214 (13.10%) Web Services
9 202 (12.36%) RESTful
10 190 (11.63%) REST
11 165 (10.10%) Spring Boot
12 158 (9.67%) HTML5
13 129 (7.89%) SOAP
14 104 (6.36%) Redux
15 102 (6.24%) XML
16 100 (6.12%) JSON
17 94 (5.75%) ASP.NET
18 74 (4.53%) ActiveMQ
19 72 (4.41%) .NET Core
19 72 (4.41%) CSS3
Miscellaneous
1 128 (7.83%) User Experience
2 122 (7.47%) Greenfield Project
3 88 (5.39%) Fixed Income
4 62 (3.79%) Analytical Skills
5 45 (2.75%) Derivative
6 42 (2.57%) Foreign Exchange (FX)
7 39 (2.39%) Mobile App
8 32 (1.96%) Data Structures
9 27 (1.65%) Enterprise Software
10 26 (1.59%) Public Cloud
11 25 (1.53%) Algorithms
12 24 (1.47%) Cloud Native
13 23 (1.41%) Equities
14 17 (1.04%) Self-Motivation
15 15 (0.92%) Hybrid Cloud
16 13 (0.80%) Virtual Team
17 12 (0.73%) Client/Server
17 12 (0.73%) Data Centre
17 12 (0.73%) Management Information System
18 11 (0.67%) Credit Risk
Operating Systems
1 212 (12.97%) Linux
2 164 (10.04%) Unix
3 91 (5.57%) Mac OS X
4 58 (3.55%) Android
5 46 (2.82%) Apple iOS
5 46 (2.82%) Windows
6 10 (0.61%) Red Hat Enterprise Linux
6 10 (0.61%) Windows Server
7 7 (0.43%) Ubuntu
8 6 (0.37%) CentOS
8 6 (0.37%) Mac OS
8 6 (0.37%) Solaris
9 5 (0.31%) Debian
9 5 (0.31%) tvOS
10 1 (0.061%) CoreOS
10 1 (0.061%) HPUX
10 1 (0.061%) Windows 10
10 1 (0.061%) zOS
Processes & Methodologies
1 1,216 (74.42%) Agile Software Development
2 684 (41.86%) BDD
3 474 (29.01%) Microservices
4 417 (25.52%) Test Automation
5 412 (25.21%) DevOps
6 404 (24.72%) Scrum
7 331 (20.26%) Continuous Integration
8 286 (17.50%) Pair Programming
9 208 (12.73%) Software Engineering
10 199 (12.18%) Kanban
11 156 (9.55%) Continuous Deployment
12 146 (8.94%) OO
13 143 (8.75%) Problem-Solving
14 132 (8.08%) Front End Development
15 130 (7.96%) Web Development
16 121 (7.41%) MVC
17 113 (6.92%) Continuous Improvement
18 111 (6.79%) SDLC
19 107 (6.55%) Responsive Web Design
20 106 (6.49%) Continuous Delivery
Programming Languages
1 797 (48.78%) Java
2 520 (31.82%) JavaScript
3 291 (17.81%) SQL
4 265 (16.22%) C#
5 247 (15.12%) Python
6 225 (13.77%) Java 8
7 110 (6.73%) TypeScript
8 81 (4.96%) Scala
9 47 (2.88%) Ruby
10 43 (2.63%) C++
10 43 (2.63%) Kotlin
11 41 (2.51%) PHP
12 34 (2.08%) ES6
13 33 (2.02%) Go
14 32 (1.96%) XPath
15 30 (1.84%) T-SQL
16 25 (1.53%) Shell Script
17 24 (1.47%) C
18 22 (1.35%) Apple Swift
18 22 (1.35%) Groovy
Qualifications
1 248 (15.18%) Security Cleared
2 172 (10.53%) SC Cleared
3 77 (4.71%) Degree
4 38 (2.33%) BPSS Clearance
5 33 (2.02%) ISTQB
6 31 (1.90%) Computer Science Degree
7 29 (1.77%) ISEB
8 28 (1.71%) DV Cleared
9 23 (1.41%) DBS Check
10 20 (1.22%) ISTQB Foundation Certification
11 7 (0.43%) Numerate Degree
11 7 (0.43%) OCPJP
11 7 (0.43%) Sun Certification
12 6 (0.37%) AWS Certification
13 5 (0.31%) Master's Degree
14 3 (0.18%) ISTQB Advanced Certification
14 3 (0.18%) OCP
14 3 (0.18%) Oracle Certification
15 2 (0.12%) PMI Certification
16 1 (0.061%) ISEB Practitioner
Quality Assurance & Compliance
1 109 (6.67%) QA
2 47 (2.88%) WCAG
3 12 (0.73%) GDPR
4 9 (0.55%) Data Quality
5 8 (0.49%) PMO
6 6 (0.37%) MiFID
7 3 (0.18%) EMIR
8 2 (0.12%) Disclosure Scotland
9 1 (0.061%) FINREP
9 1 (0.061%) IFRS
System Software
1 322 (19.71%) Docker
2 15 (0.92%) Active Directory
3 8 (0.49%) NDS
3 8 (0.49%) NetIQ eDirectory
4 6 (0.37%) VMware Infrastructure
4 6 (0.37%) vSphere
5 5 (0.31%) HDFS
5 5 (0.31%) Postfix
6 3 (0.18%) Veritas Cluster Server
6 3 (0.18%) Virtual Machines
7 2 (0.12%) Apache ZooKeeper
7 2 (0.12%) BusyBox
8 1 (0.061%) Firmware
Systems Management
1 235 (14.38%) Kubernetes
2 103 (6.30%) Terraform
3 55 (3.37%) Ansible
4 33 (2.02%) Opscode Chef
4 33 (2.02%) Puppet
5 13 (0.80%) NetIQ Identity Manager
6 8 (0.49%) Rancher
6 8 (0.49%) Salt
7 7 (0.43%) Grafana
7 7 (0.43%) Tivoli
8 6 (0.37%) Kibana
9 4 (0.24%) Docker Swarm
9 4 (0.24%) HP ALM
9 4 (0.24%) Prometheus
10 3 (0.18%) Hadoop YARN
10 3 (0.18%) Pacemaker
10 3 (0.18%) Single Sign-On
11 2 (0.12%) Graphite
11 2 (0.12%) HP Quality Center
11 2 (0.12%) Nessus
Vendors
1 157 (9.61%) Oracle
2 107 (6.55%) Microsoft
3 56 (3.43%) SAP
4 55 (3.37%) Google
5 39 (2.39%) Atlassian
6 31 (1.90%) WSO2
7 26 (1.59%) Talend
8 17 (1.04%) DevExpress
8 17 (1.04%) Sybase
9 16 (0.98%) Databricks
10 14 (0.86%) NetIQ
11 12 (0.73%) ForgeRock
12 10 (0.61%) IBM
13 9 (0.55%) hybris
13 9 (0.55%) RedGate
13 9 (0.55%) webMethods
14 8 (0.49%) Murex
14 8 (0.49%) Splunk
14 8 (0.49%) Sun
15 7 (0.43%) Novell