Period
to 17 December 2018

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 17 December 2018 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
17 Dec 2018
Same period 2017 Same period 2016
Rank 20 25 58
Rank change year-on-year +5 +33 -4
Contract jobs citing TDD 100 97 40
As % of all contract IT jobs advertised in Birmingham 7.07% 6.01% 2.81%
As % of the Processes & Methodologies category 8.46% 7.24% 3.38%
Number of daily rates quoted 68 80 25
Birmingham median daily rate £450 £338 £425
Median daily rate % change year-on-year +33.33% -20.59% -15.00%
10th Percentile £375 £216 £335
90th Percentile £525 £451 £433
West Midlands median daily rate £450 £400 £400
% change year-on-year +12.50% - +5.96%
Number of hourly rates quoted 0 0 0
Birmingham median hourly rate - - -
West Midlands median hourly rate £55.00 £33.00 -
% change year-on-year +66.67% - -

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 1,182 1,339 1,185
As % of all contract IT jobs advertised in Birmingham 83.53% 82.96% 83.16%
Number of daily rates quoted 809 985 731
Birmingham median daily rate £425 £400 £400
Median daily rate % change year-on-year +6.25% - +6.67%
10th Percentile £213 £227 £250
90th Percentile £563 £532 £550
West Midlands median daily rate £425 £400 £400
% change year-on-year +6.25% - +6.67%
Number of hourly rates quoted 35 25 34
Birmingham median hourly rate £17.00 £16.00 £15.75
Median hourly rate % change year-on-year +6.25% +1.59% -10.00%
10th Percentile £10.77 £10.27 £10.60
90th Percentile £32.00 £48.95 £27.63
West Midlands median hourly rate £15.85 £25.12 £17.00
% change year-on-year -36.90% +47.76% -15.00%

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 17 December 2018.

Contractor daily rate histogram for TDD in Birmingham

For the 6 months to 17 December 2018, 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 84 (84.00%) Agile Software Development
2 69 (69.00%) Java
3 63 (63.00%) Spring
4 57 (57.00%) BDD
5 55 (55.00%) Spring Boot
6 51 (51.00%) Git (software)
7 50 (50.00%) Microservices
8 48 (48.00%) JavaScript
8 48 (48.00%) HTML
9 44 (44.00%) Apache Camel
10 43 (43.00%) Hibernate
11 42 (42.00%) CSS
12 41 (41.00%) Java 8
13 39 (39.00%) Continuous Integration
14 37 (37.00%) Security Cleared
15 33 (33.00%) SQL Server
15 33 (33.00%) Web Services
15 33 (33.00%) Jenkins
16 32 (32.00%) SQL
16 32 (32.00%) SC Cleared
17 30 (30.00%) Scrum
18 29 (29.00%) RESTful
18 29 (29.00%) Relational Database
19 28 (28.00%) PostgreSQL
20 26 (26.00%) RabbitMQ
21 25 (25.00%) Trunk-Based Development
21 25 (25.00%) Migration
21 25 (25.00%) Subversion
22 24 (24.00%) WebSphere
22 24 (24.00%) IBM

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 24 (24.00%) WebSphere
2 5 (5.00%) CMS
2 5 (5.00%) Sitecore CMS
3 2 (2.00%) EPiServer
4 1 (1.00%) Elasticsearch
Applications
1 3 (3.00%) GIMP
1 3 (3.00%) Photoshop
Business Applications
1 4 (4.00%) Dynamics CRM
Cloud Services
1 18 (18.00%) Microsoft Azure
2 12 (12.00%) Amazon AWS
3 9 (9.00%) Amazon EC2
4 8 (8.00%) Dynamics 365
5 6 (6.00%) Azure Functions
5 6 (6.00%) Serverless
6 3 (3.00%) Google Analytics
7 1 (1.00%) GitHub
7 1 (1.00%) Google Cloud Platform
Communications & Networking
1 2 (2.00%) SMS
Database & Business Intelligence
1 33 (33.00%) SQL Server
2 29 (29.00%) Relational Database
3 28 (28.00%) PostgreSQL
4 5 (5.00%) Data Warehouse
5 3 (3.00%) MySQL
6 2 (2.00%) Apache Cassandra
6 2 (2.00%) MongoDB
6 2 (2.00%) RDBMS
6 2 (2.00%) Redis
Development Applications
1 51 (51.00%) Git (software)
2 33 (33.00%) Jenkins
3 25 (25.00%) Subversion
4 23 (23.00%) Maven
5 22 (22.00%) JUnit
5 22 (22.00%) Mockito
6 21 (21.00%) DbUnit
6 21 (21.00%) jMock
6 21 (21.00%) SonarQube
7 15 (15.00%) Selenium
8 11 (11.00%) JIRA
8 11 (11.00%) NUnit
9 10 (10.00%) IntelliJ
10 9 (9.00%) Moq
11 6 (6.00%) Cucumber
12 4 (4.00%) MSTest
12 4 (4.00%) Visual Studio
13 3 (3.00%) Visual Studio Team System
14 2 (2.00%) Android Studio
14 2 (2.00%) Team Foundation Server
General
1 8 (8.00%) Retail
2 7 (7.00%) Finance
3 2 (2.00%) Telecoms
4 1 (1.00%) Back Office
Job Titles
1 89 (89.00%) Developer
2 67 (67.00%) Java Developer
3 14 (14.00%) Agile Developer
3 14 (14.00%) Agile Java Developer
3 14 (14.00%) Full Stack Developer
4 13 (13.00%) AWS Developer
4 13 (13.00%) J2EE Developer
4 13 (13.00%) Java/J2EE Developer
5 9 (9.00%) Architect
6 7 (7.00%) .NET Developer
6 7 (7.00%) UI Developer
7 6 (6.00%) Angular Developer
7 6 (6.00%) Senior Developer
8 5 (5.00%) JavaScript Developer
9 4 (4.00%) C# .NET Developer
9 4 (4.00%) C# Developer
9 4 (4.00%) React Developer
9 4 (4.00%) Technical Architect
10 3 (3.00%) HTML CSS Developer
10 3 (3.00%) SC Cleared Java Developer
Libraries, Frameworks & Software Standards
1 63 (63.00%) Spring
2 55 (55.00%) Spring Boot
3 48 (48.00%) HTML
4 44 (44.00%) Apache Camel
5 43 (43.00%) Hibernate
6 42 (42.00%) CSS
7 33 (33.00%) Web Services
8 29 (29.00%) RESTful
9 26 (26.00%) RabbitMQ
10 23 (23.00%) J2EE
11 22 (22.00%) SOAP
12 21 (21.00%) .NET
12 21 (21.00%) PowerMock
13 17 (17.00%) ASP.NET
14 16 (16.00%) HTML5
15 13 (13.00%) AngularJS
15 13 (13.00%) React
16 10 (10.00%) Dropwizard
16 10 (10.00%) jQuery
17 8 (8.00%) CSS3
Miscellaneous
1 14 (14.00%) User Experience
2 6 (6.00%) NHS
3 2 (2.00%) Digital Media
3 2 (2.00%) Greenfield Project
3 2 (2.00%) Mobile App
Operating Systems
1 2 (2.00%) Android
Processes & Methodologies
1 84 (84.00%) Agile Software Development
2 57 (57.00%) BDD
3 50 (50.00%) Microservices
4 39 (39.00%) Continuous Integration
5 30 (30.00%) Scrum
6 25 (25.00%) Migration
6 25 (25.00%) Trunk-Based Development
7 23 (23.00%) Kanban
8 21 (21.00%) DevOps
9 14 (14.00%) MVC
10 12 (12.00%) E-Commerce
11 10 (10.00%) Continuous Deployment
11 10 (10.00%) UML
12 9 (9.00%) Virtual Infrastructure
13 7 (7.00%) Wireframes
14 6 (6.00%) Open Source
15 5 (5.00%) Business Intelligence
15 5 (5.00%) Front End Development
15 5 (5.00%) OO
15 5 (5.00%) Unit Testing
Programming Languages
1 69 (69.00%) Java
2 48 (48.00%) JavaScript
3 41 (41.00%) Java 8
4 32 (32.00%) SQL
5 23 (23.00%) C#
6 6 (6.00%) PHP
7 2 (2.00%) ES6
7 2 (2.00%) PowerShell
7 2 (2.00%) Python
7 2 (2.00%) VB.NET
8 1 (1.00%) ES7
8 1 (1.00%) ES8
8 1 (1.00%) Go
8 1 (1.00%) PHP 7
8 1 (1.00%) Scala
8 1 (1.00%) TypeScript
8 1 (1.00%) VB
8 1 (1.00%) VB6
Qualifications
1 37 (37.00%) Security Cleared
2 32 (32.00%) SC Cleared
3 1 (1.00%) ISEB
3 1 (1.00%) ISTQB
Quality Assurance & Compliance
1 5 (5.00%) PMO
2 3 (3.00%) QA
System Software
1 19 (19.00%) Docker
2 9 (9.00%) VMware Infrastructure
2 9 (9.00%) vSphere
Systems Management
1 4 (4.00%) Kubernetes
2 2 (2.00%) Ansible
3 1 (1.00%) Terraform
Vendors
1 24 (24.00%) IBM
2 12 (12.00%) Microsoft
3 9 (9.00%) VMware
4 5 (5.00%) Sitecore
5 3 (3.00%) Google
6 2 (2.00%) Zend