Period
to 22 October 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 22 October 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
22 Oct 2020
Same period 2019 Same period 2018
Rank 41 27 19
Rank change year-on-year -14 -8 -3
Contract jobs citing TDD 1,396 4,792 7,610
As % of all contract jobs advertised in England 5.11% 6.19% 8.06%
As % of the Processes & Methodologies category 5.89% 7.12% 9.26%
Number of daily rates quoted 1,148 3,813 6,043
Median daily rate £520 £525 £500
Median daily rate % change year-on-year -0.95% +5.00% +2.56%
10th Percentile £350 £400 £375
90th Percentile £650 £700 £640
UK median daily rate £515 £525 £500
% change year-on-year -1.90% +5.00% +5.26%
Number of hourly rates quoted 13 6 23
Median hourly rate £35.00 £40.37 £41.50
Median hourly rate % change year-on-year -13.30% -2.73% -7.78%
UK median hourly rate £35.00 £38.74 £41.50
% change year-on-year -9.64% -6.66% -7.78%

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 23,686 67,314 82,211
As % of all contract IT jobs advertised in England 86.69% 86.96% 87.08%
Number of daily rates quoted 15,204 44,686 54,864
Median daily rate £475 £475 £470
Median daily rate % change year-on-year - +1.06% +4.44%
10th Percentile £300 £300 £300
90th Percentile £675 £650 £644
UK median daily rate £475 £475 £451
% change year-on-year - +5.44% +0.11%
Number of hourly rates quoted 843 2,016 2,201
Median hourly rate £35.00 £24.50 £21.00
Median hourly rate % change year-on-year +42.86% +16.67% -15.56%
10th Percentile £12.40 £11.82 £11.25
90th Percentile £54.55 £53.75 £50.00
Median hourly rate £35.00 £24.00 £20.90
% change year-on-year +45.83% +14.86% -15.81%

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 October 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
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 October 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 -19 894 £550 - 416
North of England +13 190 £500 +11.11% 215
South West +34 93 £500 +11.11% 51
Yorkshire +26 83 £500 +5.26% 52
North West +4 81 £500 +13.64% 135
Midlands -11 68 £424 -5.89% 90
South East -55 63 £450 - 130
East of England 0 58 £473 +5.00% 48
West Midlands -10 43 £434 -8.74% 58
North East +17 26 £520 +20.93% 28
East Midlands +1 22 £392 -7.88% 32
TDD
UK

For the 6 months to 22 October 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.

1 990 (70.92%) Agile Software Development
2 703 (50.36%) Java
3 616 (44.13%) BDD
4 450 (32.23%) AWS
5 433 (31.02%) Microservices
6 408 (29.23%) JavaScript
7 397 (28.44%) Test Automation
8 373 (26.72%) DevOps
9 348 (24.93%) Azure
10 312 (22.35%) Docker
10 312 (22.35%) Scrum
11 290 (20.77%) Git (software)
12 273 (19.56%) Spring
13 268 (19.20%) Kubernetes
14 254 (18.19%) React
15 248 (17.77%) Continuous Integration
16 243 (17.41%) Node.js
17 240 (17.19%) HTML
18 231 (16.55%) Java 8
19 227 (16.26%) AngularJS
20 225 (16.12%) Finance
21 222 (15.90%) Linux
22 220 (15.76%) Python
23 217 (15.54%) CSS
24 212 (15.19%) Pair Programming
25 205 (14.68%) SQL
26 203 (14.54%) .NET
27 201 (14.40%) Security Cleared
28 191 (13.68%) C#
29 189 (13.54%) 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 99 (7.09%) Confluence
2 60 (4.30%) Elasticsearch
3 52 (3.72%) Mule
4 37 (2.65%) Red Hat Fuse
5 31 (2.22%) WebLogic
6 27 (1.93%) Apache Spark
7 24 (1.72%) JBoss
7 24 (1.72%) Oracle SOA Suite
8 22 (1.58%) Oracle Service Bus
9 19 (1.36%) Cloud Foundry
10 15 (1.07%) Apache Solr
11 9 (0.64%) Apache
11 9 (0.64%) CMS
12 8 (0.57%) SharePoint
12 8 (0.57%) Tomcat
12 8 (0.57%) WebSphere
13 6 (0.43%) Oracle Workflow
14 5 (0.36%) Headless CMS
14 5 (0.36%) MQSeries
14 5 (0.36%) Oracle Self-Service HR
Applications
1 14 (1.00%) Microsoft Excel
2 5 (0.36%) Microsoft Office
3 4 (0.29%) Figma
3 4 (0.29%) Photoshop
4 2 (0.14%) Chatbot
5 1 (0.072%) 3ds Max
5 1 (0.072%) Blender
5 1 (0.072%) GIMP
5 1 (0.072%) InVision
5 1 (0.072%) Maya
5 1 (0.072%) Microsoft PowerPoint
5 1 (0.072%) MS Visio
5 1 (0.072%) Sketch
5 1 (0.072%) Zeplin
Business Applications
1 5 (0.36%) Sparx Enterprise Architect
2 4 (0.29%) Salesforce.com CRM
3 2 (0.14%) Dynamics CRM
3 2 (0.14%) Magento
3 2 (0.14%) Payment Gateway
3 2 (0.14%) SAP FI-CA
4 1 (0.072%) Exstream
4 1 (0.072%) FINCAD Analytics
4 1 (0.072%) ION MarketView
4 1 (0.072%) Oracle Subledger Accounting
4 1 (0.072%) RMDS
4 1 (0.072%) SAP Hybris
4 1 (0.072%) thinkFolio
Cloud Services
1 450 (32.23%) AWS
2 348 (24.93%) Azure
3 57 (4.08%) Serverless
4 56 (4.01%) GCP
5 51 (3.65%) GitHub
6 39 (2.79%) PaaS
7 33 (2.36%) AWS Lambda
8 25 (1.79%) IaaS
9 23 (1.65%) Slack
10 21 (1.50%) Amazon EC2
11 20 (1.43%) Amazon ECS
11 20 (1.43%) OpenShift
12 19 (1.36%) SaaS
13 17 (1.22%) Amazon ElastiCache
14 16 (1.15%) AWS CloudFormation
15 15 (1.07%) Logic Apps
16 14 (1.00%) Amazon S3
16 14 (1.00%) Firebase
17 13 (0.93%) BlazeMeter
17 13 (0.93%) Cloud Computing
Communications & Networking
1 34 (2.44%) HTTP
2 12 (0.86%) TCP/IP
3 8 (0.57%) Skype
3 8 (0.57%) SSL
4 7 (0.50%) Internet
5 6 (0.43%) SSH
6 5 (0.36%) DNS
6 5 (0.36%) FIX Connectivity
6 5 (0.36%) Wi-Fi
7 4 (0.29%) UPnP
8 3 (0.21%) DHCP
8 3 (0.21%) DSL
8 3 (0.21%) DVB
8 3 (0.21%) IPv6
9 2 (0.14%) DECT
9 2 (0.14%) FTP
9 2 (0.14%) LAN
9 2 (0.14%) PPP
9 2 (0.14%) SNMP
9 2 (0.14%) WAN
Database & Business Intelligence
1 166 (11.89%) MongoDB
2 111 (7.95%) SQL Server
3 96 (6.88%) NoSQL
4 68 (4.87%) PostgreSQL
5 67 (4.80%) MySQL
5 67 (4.80%) Relational Database
6 29 (2.08%) Hadoop
7 28 (2.01%) Amazon RDS
8 26 (1.86%) Big Data
9 21 (1.50%) Cosmos DB
10 20 (1.43%) Apache Cassandra
11 19 (1.36%) Oracle Database
12 16 (1.15%) Data Warehouse
12 16 (1.15%) RDBMS
13 14 (1.00%) Azure SQL Database
14 9 (0.64%) Redis
14 9 (0.64%) SQL Server Integration Services
15 8 (0.57%) Amazon DynamoDB
15 8 (0.57%) Hazelcast
16 7 (0.50%) Apache Hive
Development Applications
1 290 (20.77%) Git (software)
2 182 (13.04%) Jenkins
3 167 (11.96%) JIRA
4 137 (9.81%) Cucumber
5 126 (9.03%) Selenium
6 123 (8.81%) Maven
7 102 (7.31%) JUnit
8 92 (6.59%) Mockito
9 66 (4.73%) Jasmine
10 64 (4.58%) Subversion
11 61 (4.37%) GitLab
12 48 (3.44%) JMeter
13 43 (3.08%) Grunt
13 43 (3.08%) Mocha
14 40 (2.87%) gulp
15 36 (2.58%) SoapUI
16 34 (2.44%) Gradle
17 29 (2.08%) Atlassian Bamboo
18 27 (1.93%) Postman
19 26 (1.86%) SonarQube
General
1 225 (16.12%) Finance
2 186 (13.32%) Public Sector
3 166 (11.89%) Banking
4 99 (7.09%) Front Office
5 76 (5.44%) Investment Banking
6 44 (3.15%) Marketing
7 40 (2.87%) Telecoms
8 39 (2.79%) Electronics
8 39 (2.79%) Manufacturing
9 19 (1.36%) Games
10 12 (0.86%) Law
10 12 (0.86%) Retail
11 10 (0.72%) Advertising
12 9 (0.64%) Financial Institution
13 6 (0.43%) Social Housing
14 5 (0.36%) Legal
14 5 (0.36%) Retail Banking
15 2 (0.14%) Automotive
15 2 (0.14%) Back Office
15 2 (0.14%) Police
Job Titles
1 969 (69.41%) Developer
2 365 (26.15%) Java Developer
3 148 (10.60%) Senior Developer
4 118 (8.45%) React Developer
5 92 (6.59%) .NET Developer
6 81 (5.80%) Front End Developer (Client-Side Developer)
6 81 (5.80%) Senior Java Developer
7 79 (5.66%) C# Developer
7 79 (5.66%) JavaScript Developer
8 72 (5.16%) Full Stack Developer
9 54 (3.87%) Python Developer
10 51 (3.65%) AWS Engineer
11 50 (3.58%) Java Engineer
11 50 (3.58%) Software Engineer
12 49 (3.51%) Architect
13 45 (3.22%) AWS Developer
14 43 (3.08%) Angular Developer
14 43 (3.08%) Azure Developer
15 42 (3.01%) Test Engineer
16 41 (2.94%) Tester
Libraries, Frameworks & Software Standards
1 273 (19.56%) Spring
2 254 (18.19%) React
3 243 (17.41%) Node.js
4 240 (17.19%) HTML
5 227 (16.26%) AngularJS
6 217 (15.54%) CSS
7 203 (14.54%) .NET
8 189 (13.54%) REST
9 174 (12.46%) RESTful
9 174 (12.46%) Web Services
10 160 (11.46%) HTML5
11 153 (10.96%) Spring Boot
12 98 (7.02%) JSON
12 98 (7.02%) SOAP
12 98 (7.02%) XML
13 86 (6.16%) Redux
14 75 (5.37%) CSS3
15 71 (5.09%) ActiveMQ
16 70 (5.01%) ASP.NET
17 68 (4.87%) Kafka
Miscellaneous
1 118 (8.45%) User Experience
2 68 (4.87%) Greenfield Project
3 51 (3.65%) Analytical Skills
4 45 (3.22%) Fixed Income
5 44 (3.15%) Mobile App
6 29 (2.08%) Derivative
7 27 (1.93%) Algorithms
8 22 (1.58%) Cloud Native
9 19 (1.36%) Equities
10 17 (1.22%) Data Centre
11 16 (1.15%) Public Cloud
12 15 (1.07%) Enterprise Software
12 15 (1.07%) Foreign Exchange (FX)
12 15 (1.07%) Self-Motivation
13 13 (0.93%) Data Structures
14 12 (0.86%) Client/Server
15 11 (0.79%) Hybrid Cloud
16 10 (0.72%) NHS
17 9 (0.64%) Management Information System
18 8 (0.57%) Credit Risk
Operating Systems
1 222 (15.90%) Linux
2 164 (11.75%) Unix
3 92 (6.59%) Mac OS X
4 64 (4.58%) Android
5 59 (4.23%) Apple iOS
6 40 (2.87%) Windows
7 8 (0.57%) Ubuntu
8 7 (0.50%) Mac OS
8 7 (0.50%) Red Hat Enterprise Linux
9 6 (0.43%) CentOS
10 5 (0.36%) Debian
11 4 (0.29%) tvOS
12 3 (0.21%) Embedded Linux
12 3 (0.21%) OpenWrt
13 2 (0.14%) Windows Server
14 1 (0.072%) Solaris
14 1 (0.072%) Tizen
14 1 (0.072%) webOS
14 1 (0.072%) Windows 10
Processes & Methodologies
1 990 (70.92%) Agile Software Development
2 616 (44.13%) BDD
3 433 (31.02%) Microservices
4 397 (28.44%) Test Automation
5 373 (26.72%) DevOps
6 312 (22.35%) Scrum
7 248 (17.77%) Continuous Integration
8 212 (15.19%) Pair Programming
9 183 (13.11%) Software Engineering
10 156 (11.17%) Continuous Deployment
10 156 (11.17%) Kanban
11 145 (10.39%) Problem-Solving
12 131 (9.38%) Continuous Delivery
13 130 (9.31%) OO
14 113 (8.09%) Responsive Web Design
15 108 (7.74%) Front End Development
16 100 (7.16%) Web Design
17 97 (6.95%) Web Development
18 93 (6.66%) Open Source
18 93 (6.66%) SDLC
Programming Languages
1 703 (50.36%) Java
2 408 (29.23%) JavaScript
3 231 (16.55%) Java 8
4 220 (15.76%) Python
5 205 (14.68%) SQL
6 191 (13.68%) C#
7 95 (6.81%) Scala
8 92 (6.59%) TypeScript
9 81 (5.80%) Kotlin
10 44 (3.15%) C++
11 41 (2.94%) Shell Script
12 37 (2.65%) PHP
13 34 (2.44%) Ruby
14 31 (2.22%) Go
15 30 (2.15%) XPath
16 28 (2.01%) Apple Swift
17 23 (1.65%) C
18 21 (1.50%) T-SQL
19 20 (1.43%) Perl
20 19 (1.36%) ES6
Qualifications
1 201 (14.40%) Security Cleared
2 147 (10.53%) SC Cleared
3 71 (5.09%) Degree
4 35 (2.51%) BPSS Clearance
5 28 (2.01%) ISEB
6 26 (1.86%) ISTQB
7 24 (1.72%) DBS Check
8 22 (1.58%) ISTQB Foundation Certification
9 14 (1.00%) Computer Science Degree
10 13 (0.93%) Numerate Degree
11 10 (0.72%) DV Cleared
12 7 (0.50%) OCPJP
12 7 (0.50%) Sun Certification
13 5 (0.36%) Master's Degree
14 2 (0.14%) AWS Certification
14 2 (0.14%) BC Cleared
15 1 (0.072%) ISEB Practitioner
15 1 (0.072%) ISTQB Advanced Certification
Quality Assurance & Compliance
1 91 (6.52%) QA
2 47 (3.37%) WCAG
3 12 (0.86%) Data Quality
4 6 (0.43%) GDPR
5 3 (0.21%) MiFID
5 3 (0.21%) PMO
6 2 (0.14%) Disclosure Scotland
6 2 (0.14%) JTAG
7 1 (0.072%) EMIR
7 1 (0.072%) FINREP
System Software
1 312 (22.35%) Docker
2 16 (1.15%) Active Directory
3 11 (0.79%) NDS
3 11 (0.79%) NetIQ eDirectory
4 5 (0.36%) Postfix
5 3 (0.21%) Veritas Cluster Server
5 3 (0.21%) VMware Infrastructure
5 3 (0.21%) vSphere
6 2 (0.14%) Apache ZooKeeper
6 2 (0.14%) HDFS
6 2 (0.14%) Virtual Machines
7 1 (0.072%) Firmware
Systems Management
1 268 (19.20%) Kubernetes
2 115 (8.24%) Terraform
3 65 (4.66%) Ansible
4 18 (1.29%) Puppet
5 15 (1.07%) NetIQ Identity Manager
6 12 (0.86%) Opscode Chef
7 11 (0.79%) Grafana
8 9 (0.64%) Rancher
9 8 (0.57%) Salt
9 8 (0.57%) Tivoli
10 7 (0.50%) Prometheus
11 6 (0.43%) Kibana
12 5 (0.36%) HP Quality Center
12 5 (0.36%) Rundeck
13 3 (0.21%) HP ALM
13 3 (0.21%) Oracle Identity Manager
13 3 (0.21%) Pacemaker
13 3 (0.21%) Single Sign-On
13 3 (0.21%) Tivoli Identity Manager
14 2 (0.14%) Nessus
Vendors
1 103 (7.38%) Oracle
2 59 (4.23%) Microsoft
3 43 (3.08%) SAP
4 35 (2.51%) Google
5 30 (2.15%) Splunk
6 26 (1.86%) WSO2
7 22 (1.58%) Atlassian
8 21 (1.50%) Sybase
9 20 (1.43%) Talend
10 16 (1.15%) NetIQ
11 15 (1.07%) webMethods
12 14 (1.00%) AppDynamics
12 14 (1.00%) ForgeRock
12 14 (1.00%) MuleSoft
13 10 (0.72%) Databricks
13 10 (0.72%) Novell
14 9 (0.64%) Cloudera
14 9 (0.64%) Murex
14 9 (0.64%) Salesforce.com
15 8 (0.57%) IBM