Period
to 21 October 2019

The following table provides summary statistics for contract job vacancies advertised in the West Midlands 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 21 October 2019 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)
England > West Midlands
6 months to
21 Oct 2019
Same period 2018 Same period 2017
Rank 50 32 35
Rank change year-on-year -18 +3 +28
Contract jobs citing TDD 153 305 219
As % of all contract IT jobs advertised in the West Midlands 3.88% 6.04% 4.73%
As % of the Processes & Methodologies category 4.60% 7.08% 5.61%
Number of daily rates quoted 117 183 146
West Midlands median daily rate £475 £450 £400
Median daily rate % change year-on-year +5.56% +12.50% -3.03%
10th Percentile £394 £325 £275
90th Percentile £544 £575 £569
England median daily rate £525 £500 £488
% change year-on-year +5.00% +2.56% +8.33%
Number of hourly rates quoted 0 1 2
West Midlands median hourly rate - £55.00 £33.00
Median hourly rate % change year-on-year - +66.67% -
England median hourly rate £40.37 £41.50 £45.00
% change year-on-year -2.73% -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 the West Midlands with a requirement for process or methodology skills.

All Process and Methodology Skills
West Midlands
Contract vacancies with a requirement for process or methodology skills 3,327 4,310 3,907
As % of all contract IT jobs advertised in the West Midlands 84.29% 85.38% 84.33%
Number of daily rates quoted 2,158 2,585 2,486
West Midlands median daily rate £434 £425 £400
Median daily rate % change year-on-year +2.06% +6.25% -
10th Percentile £250 £263 £239
90th Percentile £588 £575 £550
England median daily rate £475 £470 £450
% change year-on-year +1.06% +4.44% +5.88%
Number of hourly rates quoted 136 190 135
West Midlands median hourly rate £19.25 £15.00 £24.98
Median hourly rate % change year-on-year +28.33% -39.95% +38.78%
10th Percentile £11.17 £11.00 £11.25
90th Percentile £44.65 £32.63 £53.75
England median hourly rate £24.10 £21.00 £24.66
% change year-on-year +14.76% -14.84% +9.60%

TDD
Job Vacancy Trend in the West Midlands

Job postings citing TDD as a percentage of all IT jobs advertised in the West Midlands.

Job vacancy trend for TDD in the West Midlands

TDD
Contractor Daily Rate Trend in the West Midlands

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

Contractor daily rate trend for TDD in the West Midlands

TDD
Contractor Daily Rate Histogram in the West Midlands

The daily rate distribution of IT jobs citing TDD in the West Midlands over the 6 months to 21 October 2019.

Contractor daily rate histogram for TDD in the West Midlands

TDD
Contractor Hourly Rate Trend in the West Midlands

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

Contractor hourly rate trend for TDD in the West Midlands

TDD
Contract Job Locations in the West Midlands

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the West Midlands region over the 6 months to 21 October 2019. 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
Coventry 0 51 £450 - 3
Birmingham -33 50 £475 +5.56% 33
Shropshire -7 17 £485 -3.00% 4
Solihull +4 5 £500 +25.00% 2
Warwickshire - 1 £425 - 4
TDD
England

For the 6 months to 21 October 2019, 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 West Midlands region with a requirement for TDD.

1 137 (89.54%) Agile Software Development
2 96 (62.75%) Scrum
3 84 (54.90%) BDD
4 82 (53.59%) Azure
5 81 (52.94%) C#
6 70 (45.75%) Git (software)
7 68 (44.44%) .NET
8 67 (43.79%) Web Services
8 67 (43.79%) Continuous Integration
9 65 (42.48%) Kanban
10 48 (31.37%) SQL
11 45 (29.41%) JavaScript
12 43 (28.10%) SQL Server
13 42 (27.45%) ASP.NET
13 42 (27.45%) MVC
14 41 (26.80%) Java
15 39 (25.49%) RESTful
16 37 (24.18%) ASP.NET Web API
17 36 (23.53%) AWS
17 36 (23.53%) ASP.NET MVC
17 36 (23.53%) Spring
18 35 (22.88%) Digital Transformation Programme
19 34 (22.22%) SOLID
19 34 (22.22%) HTML
20 33 (21.57%) Jenkins
21 32 (20.92%) CSS
21 32 (20.92%) SOAP
22 31 (20.26%) JUnit
22 31 (20.26%) Data Warehouse
22 31 (20.26%) Maven

TDD
Co-occurring IT Skills in the West Midlands 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 16 (10.46%) Confluence
2 2 (1.31%) Apache Spark
3 1 (0.65%) BizTalk Server
3 1 (0.65%) Drupal
Applications
1 2 (1.31%) Microsoft Office
Business Applications
1 1 (0.65%) Magento
1 1 (0.65%) Shopify
Cloud Services
1 82 (53.59%) Azure
2 36 (23.53%) AWS
3 30 (19.61%) Amazon EC2
4 29 (18.95%) Amazon SQS
5 25 (16.34%) GitHub
6 22 (14.38%) Power Platform
7 9 (5.88%) Azure Functions
7 9 (5.88%) Serverless
8 5 (3.27%) PaaS
9 2 (1.31%) Amazon EKS
9 2 (1.31%) OpenShift
9 2 (1.31%) Virtual Private Cloud
10 1 (0.65%) Azure Stack
10 1 (0.65%) GCP
10 1 (0.65%) IaaS
Communications & Networking
1 1 (0.65%) DSL
Database & Business Intelligence
1 43 (28.10%) SQL Server
2 31 (20.26%) Data Warehouse
3 29 (18.95%) Amazon RDS
4 27 (17.65%) PostgreSQL
5 23 (15.03%) Azure SQL Database
6 22 (14.38%) Power BI
7 20 (13.07%) Relational Database
8 10 (6.54%) Cosmos DB
8 10 (6.54%) SQL Server Integration Services
9 5 (3.27%) SQL Server 2014
9 5 (3.27%) SQL Server 2016
9 5 (3.27%) SQL Server Analysis Services
9 5 (3.27%) SQL Server Reporting Services
10 4 (2.61%) MongoDB
11 3 (1.96%) MySQL
12 2 (1.31%) Apache Cassandra
12 2 (1.31%) Big Data
12 2 (1.31%) Hadoop
12 2 (1.31%) NoSQL
13 1 (0.65%) Redis
Development Applications
1 70 (45.75%) Git (software)
2 33 (21.57%) Jenkins
3 31 (20.26%) DbUnit
3 31 (20.26%) jMock
3 31 (20.26%) JUnit
3 31 (20.26%) Maven
3 31 (20.26%) Mockito
3 31 (20.26%) SonarQube
4 18 (11.76%) JIRA
5 8 (5.23%) Selenium
6 5 (3.27%) Team Foundation Server
7 4 (2.61%) SpecFlow
7 4 (2.61%) Visual Studio Team System
8 3 (1.96%) Cucumber
8 3 (1.96%) Visual Studio
8 3 (1.96%) WebDriver
9 2 (1.31%) Grunt
9 2 (1.31%) gulp
9 2 (1.31%) JMeter
10 1 (0.65%) UI Automator
General
1 27 (17.65%) Public Sector
2 7 (4.58%) Finance
3 5 (3.27%) Retail
4 3 (1.96%) Local Government
5 2 (1.31%) Manufacturing
6 1 (0.65%) Advertising
6 1 (0.65%) Law
Job Titles
1 131 (85.62%) Developer
2 36 (23.53%) Java Developer
3 35 (22.88%) .NET Developer
4 26 (16.99%) Azure Developer
5 19 (12.42%) Lead Developer
6 15 (9.80%) C# Developer
6 15 (9.80%) SC Cleared Java Developer
7 10 (6.54%) Backend Developer
7 10 (6.54%) Database Developer
7 10 (6.54%) Engagement Manager
8 9 (5.88%) C# .NET Developer
8 9 (5.88%) Lead .NET Developer
9 8 (5.23%) Senior Developer
10 7 (4.58%) Agile .NET Developer
10 7 (4.58%) Agile Developer
10 7 (4.58%) SQL Developer
11 6 (3.92%) Architect
12 5 (3.27%) Business Intelligence Developer
12 5 (3.27%) Consultant
12 5 (3.27%) Lead Architect
Libraries, Frameworks & Software Standards
1 68 (44.44%) .NET
2 67 (43.79%) Web Services
3 42 (27.45%) ASP.NET
4 39 (25.49%) RESTful
5 37 (24.18%) ASP.NET Web API
6 36 (23.53%) ASP.NET MVC
6 36 (23.53%) Spring
7 34 (22.22%) HTML
8 32 (20.92%) CSS
8 32 (20.92%) SOAP
9 31 (20.26%) PowerMock
10 28 (18.30%) .NET Framework
10 28 (18.30%) ActiveMQ
11 24 (15.69%) Dapper ORM
11 24 (15.69%) Spring Cloud
12 22 (14.38%) AngularJS
13 20 (13.07%) XML
14 19 (12.42%) Hibernate
15 18 (11.76%) JSON
15 18 (11.76%) REST
Miscellaneous
1 18 (11.76%) Enterprise Software
2 17 (11.11%) Greenfield Project
3 5 (3.27%) NHS
4 3 (1.96%) Analytical Skills
5 2 (1.31%) Mobile App
5 2 (1.31%) User Experience
6 1 (0.65%) Self-Motivation
6 1 (0.65%) Social Media
Operating Systems
1 3 (1.96%) Linux
1 3 (1.96%) Windows
2 1 (0.65%) Android
2 1 (0.65%) Apple iOS
2 1 (0.65%) Unix
Processes & Methodologies
1 137 (89.54%) Agile Software Development
2 96 (62.75%) Scrum
3 84 (54.90%) BDD
4 67 (43.79%) Continuous Integration
5 65 (42.48%) Kanban
6 42 (27.45%) MVC
7 35 (22.88%) Digital Transformation Programme
8 34 (22.22%) SOLID
9 29 (18.95%) Technical Leadership
10 26 (16.99%) Microservices
11 25 (16.34%) Open Source
12 23 (15.03%) ETL
13 21 (13.73%) Architectural Design
14 20 (13.07%) Performance Optimisation
15 19 (12.42%) Continuous Delivery
15 19 (12.42%) Data Security
16 18 (11.76%) Project Delivery
17 17 (11.11%) BPMN
18 15 (9.80%) Business Intelligence
19 14 (9.15%) Migration
Programming Languages
1 81 (52.94%) C#
2 48 (31.37%) SQL
3 45 (29.41%) JavaScript
4 41 (26.80%) Java
5 23 (15.03%) PowerShell
6 4 (2.61%) PHP
7 3 (1.96%) Java 8
7 3 (1.96%) Scala
8 1 (0.65%) C
8 1 (0.65%) Gremlin
8 1 (0.65%) Groovy
8 1 (0.65%) Python
Qualifications
1 28 (18.30%) Security Cleared
2 26 (16.99%) SC Cleared
3 2 (1.31%) Degree
Quality Assurance & Compliance
1 5 (3.27%) QA
2 2 (1.31%) WCAG
System Software
1 29 (18.95%) Postfix
2 8 (5.23%) Docker
3 1 (0.65%) Virtual Machines
3 1 (0.65%) VMware Infrastructure
3 1 (0.65%) vSphere
Systems Management
1 3 (1.96%) Kubernetes
2 2 (1.31%) MIIS
3 1 (0.65%) Ansible
3 1 (0.65%) Kibana
Vendors
1 14 (9.15%) Atlassian
2 10 (6.54%) Microsoft
3 2 (1.31%) Oracle
3 2 (1.31%) Red Hat
3 2 (1.31%) WSO2
4 1 (0.65%) Splunk
4 1 (0.65%) Talend
4 1 (0.65%) VMware
4 1 (0.65%) Zend