Period
to 24 May 2019

The following table provides summary statistics for contract job vacancies advertised in Birmingham 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 24 May 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)
West Midlands > Birmingham
6 months to
24 May 2019
Same period 2018 Same period 2017
Rank 45 13 39
Rank change year-on-year -32 +26 +10
Contract jobs citing TDD 47 150 49
As % of all contract IT jobs advertised in Birmingham 3.69% 9.87% 4.10%
As % of the Processes & Methodologies category 4.36% 11.69% 5.01%
Number of daily rates quoted 32 105 35
Birmingham median daily rate £469 £425 £400
Median daily rate % change year-on-year +10.29% +6.25% -8.57%
10th Percentile £407 £256 £289
90th Percentile £575 £600 £500
West Midlands median daily rate £458 £425 £375
% change year-on-year +7.65% +13.33% -16.67%
Number of hourly rates quoted 0 0 0
Birmingham median hourly rate - - -
West Midlands median hourly rate £35.00 - -

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 Birmingham with a requirement for process or methodology skills.

All Process and Methodology Skills
Birmingham
Contract vacancies with a requirement for process or methodology skills 1,077 1,283 978
As % of all contract IT jobs advertised in Birmingham 84.54% 84.41% 81.77%
Number of daily rates quoted 746 862 648
Birmingham median daily rate £425 £406 £400
Median daily rate % change year-on-year +4.62% +1.56% +6.67%
10th Percentile £263 £253 £263
90th Percentile £575 £575 £525
West Midlands median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% +2.56%
Number of hourly rates quoted 25 51 17
Birmingham median hourly rate £17.06 £15.00 £14.50
Median hourly rate % change year-on-year +13.73% +3.45% +3.57%
10th Percentile £10.63 £8.39 £11.40
90th Percentile £43.50 £42.50 £32.90
West Midlands median hourly rate £20.25 £15.50 £21.50
% change year-on-year +30.65% -27.91% +17.65%

TDD
Job Vacancy Trend in Birmingham

Job postings citing TDD as a percentage of all IT jobs advertised in Birmingham.

Job vacancy trend for TDD in Birmingham

TDD
Contractor Daily Rate Trend in Birmingham

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

Contractor daily rate trend for TDD in Birmingham

TDD
Contractor Daily Rate Histogram in Birmingham

The daily rate distribution of IT jobs citing TDD in Birmingham over the 6 months to 24 May 2019.

Contractor daily rate histogram for TDD in Birmingham

For the 6 months to 24 May 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 Birmingham region with a requirement for TDD.

1 43 (91.49%) Agile Software Development
2 31 (65.96%) BDD
3 28 (59.57%) Git (software)
4 27 (57.45%) Continuous Integration
5 26 (55.32%) Scrum
6 25 (53.19%) Web Services
6 25 (53.19%) Kanban
7 22 (46.81%) C#
8 21 (44.68%) Java
9 20 (42.55%) HTML
9 20 (42.55%) Microsoft Azure
10 18 (38.30%) Spring
10 18 (38.30%) .NET
11 17 (36.17%) SQL Server
11 17 (36.17%) SQL
11 17 (36.17%) JavaScript
11 17 (36.17%) RESTful
12 16 (34.04%) Jenkins
12 16 (34.04%) CSS
13 15 (31.91%) Maven
13 15 (31.91%) Mockito
14 14 (29.79%) DbUnit
14 14 (29.79%) PowerMock
14 14 (29.79%) jMock
14 14 (29.79%) SOAP
14 14 (29.79%) JUnit
14 14 (29.79%) SonarQube
15 13 (27.66%) Amazon AWS
16 12 (25.53%) Digital Transformation Programme
17 11 (23.40%) Amazon EC2

TDD
Co-occurring IT Skills in Birmingham 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 2 (4.26%) WebSphere
Business Applications
1 4 (8.51%) Dynamics CRM
Cloud Services
1 20 (42.55%) Microsoft Azure
2 13 (27.66%) Amazon AWS
3 11 (23.40%) Amazon EC2
4 10 (21.28%) Amazon SQS
5 6 (12.77%) Dynamics 365
6 2 (4.26%) Azure Functions
6 2 (4.26%) Serverless
7 1 (2.13%) Google Cloud Platform
7 1 (2.13%) OpenShift
Communications & Networking
1 2 (4.26%) HTTP
2 1 (2.13%) Internet
Database & Business Intelligence
1 17 (36.17%) SQL Server
2 11 (23.40%) PostgreSQL
3 10 (21.28%) Amazon RDS
4 2 (4.26%) Azure SQL Database
4 2 (4.26%) Relational Database
5 1 (2.13%) Apache Cassandra
5 1 (2.13%) Data Warehouse
Development Applications
1 28 (59.57%) Git (software)
2 16 (34.04%) Jenkins
3 15 (31.91%) Maven
3 15 (31.91%) Mockito
4 14 (29.79%) DbUnit
4 14 (29.79%) jMock
4 14 (29.79%) JUnit
4 14 (29.79%) SonarQube
5 4 (8.51%) Android Studio
6 2 (4.26%) Cucumber
6 2 (4.26%) JIRA
6 2 (4.26%) Selenium
6 2 (4.26%) Subversion
6 2 (4.26%) Team Foundation Server
7 1 (2.13%) JMeter
7 1 (2.13%) Moq
7 1 (2.13%) MSTest
7 1 (2.13%) NUnit
7 1 (2.13%) SoapUI
7 1 (2.13%) WebDriver
General
1 2 (4.26%) Advertising
1 2 (4.26%) Retail
Job Titles
1 36 (76.60%) Developer
2 20 (42.55%) Java Developer
3 7 (14.89%) Lead Developer
3 7 (14.89%) Senior Developer
4 6 (12.77%) Architect
5 5 (10.64%) AWS Developer
5 5 (10.64%) Integration Engineer
6 4 (8.51%) Android Developer
6 4 (8.51%) Azure Engineer
6 4 (8.51%) Lead Architect
6 4 (8.51%) Team Leader
7 3 (6.38%) Agile Developer
7 3 (6.38%) Full Stack Developer
7 3 (6.38%) J2EE Developer
7 3 (6.38%) Java/J2EE Developer
7 3 (6.38%) SC Cleared Java Developer
8 2 (4.26%) .NET Developer
8 2 (4.26%) Senior Java Developer
9 1 (2.13%) Integration Architect
9 1 (2.13%) Senior .NET Developer
Libraries, Frameworks & Software Standards
1 25 (53.19%) Web Services
2 20 (42.55%) HTML
3 18 (38.30%) .NET
3 18 (38.30%) Spring
4 17 (36.17%) RESTful
5 16 (34.04%) CSS
6 14 (29.79%) PowerMock
6 14 (29.79%) SOAP
7 11 (23.40%) ASP.NET
8 10 (21.28%) .NET Framework
8 10 (21.28%) ASP.NET MVC
8 10 (21.28%) ASP.NET Web API
8 10 (21.28%) Dapper ORM
9 9 (19.15%) ActiveMQ
9 9 (19.15%) AngularJS
9 9 (19.15%) Spring Cloud
10 8 (17.02%) Hibernate
10 8 (17.02%) J2EE
11 7 (14.89%) .NET Core
11 7 (14.89%) Spring Boot
Miscellaneous
1 7 (14.89%) User Experience
2 4 (8.51%) Mobile App
3 2 (4.26%) Data Centre
3 2 (4.26%) NHS
4 1 (2.13%) Analytical Skills
Operating Systems
1 4 (8.51%) Android
Processes & Methodologies
1 43 (91.49%) Agile Software Development
2 31 (65.96%) BDD
3 27 (57.45%) Continuous Integration
4 26 (55.32%) Scrum
5 25 (53.19%) Kanban
6 12 (25.53%) Digital Transformation Programme
7 10 (21.28%) Microservices
7 10 (21.28%) MVC
7 10 (21.28%) SOLID
7 10 (21.28%) Technical Leadership
8 9 (19.15%) Open Source
9 7 (14.89%) DevOps
9 7 (14.89%) Migration
10 6 (12.77%) Unit Testing
11 5 (10.64%) E-Commerce
12 4 (8.51%) Android Development
12 4 (8.51%) BPMN
12 4 (8.51%) CRM
13 3 (6.38%) Mentoring
13 3 (6.38%) Web Development
Programming Languages
1 22 (46.81%) C#
2 21 (44.68%) Java
3 17 (36.17%) JavaScript
3 17 (36.17%) SQL
4 6 (12.77%) Java 8
5 4 (8.51%) T-SQL
6 2 (4.26%) PHP
6 2 (4.26%) PL/SQL
7 1 (2.13%) Scala
Qualifications
1 10 (21.28%) Security Cleared
2 9 (19.15%) SC Cleared
3 1 (2.13%) Computer Science Degree
3 1 (2.13%) Degree
Quality Assurance & Compliance
1 2 (4.26%) QA
2 1 (2.13%) PMO
System Software
1 9 (19.15%) Postfix
2 4 (8.51%) Docker
3 1 (2.13%) VMware Infrastructure
3 1 (2.13%) vSphere
Systems Management
1 3 (6.38%) Kubernetes
2 1 (2.13%) Rundeck
Vendors
1 4 (8.51%) Microsoft
2 3 (6.38%) Oracle
3 2 (4.26%) IBM
4 1 (2.13%) DevExpress
4 1 (2.13%) Dynatrace
4 1 (2.13%) Red Hat
4 1 (2.13%) Splunk
4 1 (2.13%) Talend
4 1 (2.13%) VMware
4 1 (2.13%) WSO2