Period
to 23 October 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 23 October 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
23 Oct 2018
Same period 2017 Same period 2016
Rank 13 37 49
Rank change year-on-year +24 +12 -14
Contract jobs citing TDD 119 61 60
As % of all contract IT jobs advertised in Birmingham 8.29% 4.01% 3.87%
As % of the Processes & Methodologies category 10.03% 4.86% 4.62%
Number of daily rates quoted 81 49 42
Birmingham median daily rate £450 £338 £400
Median daily rate % change year-on-year +33.33% -15.68% +6.73%
10th Percentile £325 £236 £313
90th Percentile £513 £480 £436
West Midlands median daily rate £450 £400 £413
% change year-on-year +12.50% -3.03% +10.00%
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 1,187 1,255 1,300
As % of all contract IT jobs advertised in Birmingham 82.66% 82.57% 83.82%
Number of daily rates quoted 811 910 845
Birmingham median daily rate £413 £388 £400
Median daily rate % change year-on-year +6.45% -3.13% +6.67%
10th Percentile £225 £238 £250
90th Percentile £550 £525 £550
West Midlands median daily rate £425 £400 £400
% change year-on-year +6.25% - +6.67%
Number of hourly rates quoted 43 17 31
Birmingham median hourly rate £15.00 £15.00 £15.00
10th Percentile £10.75 £10.75 £10.60
90th Percentile £23.60 £47.45 £36.50
West Midlands median hourly rate £15.00 £24.98 £17.50
% change year-on-year -39.95% +42.74% -16.67%

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 23 October 2018.

Contractor daily rate histogram for TDD in Birmingham

For the 6 months to 23 October 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 88 (73.95%) Agile Software Development
2 73 (61.34%) Java
3 55 (46.22%) Spring
3 55 (46.22%) JavaScript
4 50 (42.02%) BDD
5 48 (40.34%) Spring Boot
5 48 (40.34%) HTML
6 45 (37.82%) Continuous Integration
6 45 (37.82%) Git (software)
7 43 (36.13%) Web Services
8 42 (35.29%) CSS
8 42 (35.29%) Microservices
9 40 (33.61%) RESTful
9 40 (33.61%) Security Cleared
10 38 (31.93%) Scrum
11 37 (31.09%) SC Cleared
11 37 (31.09%) Apache Camel
12 36 (30.25%) Jenkins
13 32 (26.89%) Hibernate
13 32 (26.89%) Java 8
14 30 (25.21%) React
15 28 (23.53%) Kanban
16 27 (22.69%) Docker
16 27 (22.69%) HTML5
17 26 (21.85%) .NET
18 25 (21.01%) C#
18 25 (21.01%) Maven
18 25 (21.01%) User Experience
19 24 (20.17%) KnockoutJS
19 24 (20.17%) SOAP

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 14 (11.76%) WebSphere
2 4 (3.36%) Elasticsearch
3 2 (1.68%) Apache
3 2 (1.68%) CMS
3 2 (1.68%) EPiServer
3 2 (1.68%) Sitecore CMS
4 1 (0.84%) Confluence
Applications
1 11 (9.24%) GIMP
1 11 (9.24%) Photoshop
Business Applications
1 3 (2.52%) Dynamics CRM
Cloud Services
1 22 (18.49%) Microsoft Azure
2 13 (10.92%) Amazon AWS
3 9 (7.56%) Dynamics 365
4 8 (6.72%) Amazon EC2
5 6 (5.04%) Azure Functions
5 6 (5.04%) Serverless
6 4 (3.36%) npm
7 3 (2.52%) GitHub
7 3 (2.52%) Google Analytics
7 3 (2.52%) Yarn
8 2 (1.68%) IaaS
8 2 (1.68%) PaaS
8 2 (1.68%) SaaS
9 1 (0.84%) Cloud Computing
9 1 (0.84%) Google Cloud Platform
Communications & Networking
1 4 (3.36%) SMS
2 2 (1.68%) VoIP
Database & Business Intelligence
1 23 (19.33%) SQL Server
2 20 (16.81%) Relational Database
3 17 (14.29%) PostgreSQL
4 5 (4.20%) Data Warehouse
4 5 (4.20%) NoSQL
5 3 (2.52%) MySQL
5 3 (2.52%) RDBMS
6 2 (1.68%) Apache Cassandra
6 2 (1.68%) Azure SQL Database
6 2 (1.68%) MongoDB
6 2 (1.68%) Redis
Development Applications
1 45 (37.82%) Git (software)
2 36 (30.25%) Jenkins
3 25 (21.01%) Maven
4 22 (18.49%) JUnit
4 22 (18.49%) Mockito
5 21 (17.65%) DbUnit
5 21 (17.65%) jMock
5 21 (17.65%) SonarQube
6 15 (12.61%) Selenium
6 15 (12.61%) Subversion
7 14 (11.76%) JIRA
8 12 (10.08%) NUnit
9 10 (8.40%) IntelliJ
10 9 (7.56%) Moq
11 6 (5.04%) Cucumber
12 5 (4.20%) gulp
12 5 (4.20%) webpack
13 4 (3.36%) Jasmine
13 4 (3.36%) Karma Test Runner
13 4 (3.36%) SoapUI
General
1 9 (7.56%) Retail
2 7 (5.88%) Finance
3 3 (2.52%) Telecoms
4 1 (0.84%) Back Office
4 1 (0.84%) Electronics
4 1 (0.84%) Games
4 1 (0.84%) Manufacturing
4 1 (0.84%) Marketing
Job Titles
1 102 (85.71%) Developer
2 65 (54.62%) Java Developer
3 17 (14.29%) Agile Developer
3 17 (14.29%) Full Stack Developer
4 16 (13.45%) J2EE Developer
4 16 (13.45%) Java/J2EE Developer
4 16 (13.45%) UI Developer
5 14 (11.76%) JavaScript Developer
6 13 (10.92%) Agile Java Developer
7 12 (10.08%) AWS Developer
7 12 (10.08%) HTML CSS Developer
7 12 (10.08%) HTML Developer
8 11 (9.24%) .NET Developer
9 10 (8.40%) Angular Developer
10 9 (7.56%) Architect
11 8 (6.72%) Front End Developer (Client-Side Developer)
11 8 (6.72%) React Developer
12 7 (5.88%) Senior Developer
13 5 (4.20%) C# Developer
13 5 (4.20%) Senior .NET Developer
Libraries, Frameworks & Software Standards
1 55 (46.22%) Spring
2 48 (40.34%) HTML
2 48 (40.34%) Spring Boot
3 43 (36.13%) Web Services
4 42 (35.29%) CSS
5 40 (33.61%) RESTful
6 37 (31.09%) Apache Camel
7 32 (26.89%) Hibernate
8 30 (25.21%) React
9 27 (22.69%) HTML5
10 26 (21.85%) .NET
11 24 (20.17%) KnockoutJS
11 24 (20.17%) SOAP
12 23 (19.33%) AngularJS
12 23 (19.33%) J2EE
13 22 (18.49%) ASP.NET
14 21 (17.65%) jQuery
14 21 (17.65%) PowerMock
15 19 (15.97%) Sass
16 17 (14.29%) LESS
Miscellaneous
1 25 (21.01%) User Experience
2 7 (5.88%) NHS
3 5 (4.20%) Digital Media
4 3 (2.52%) Analytical Skills
5 2 (1.68%) Data Centre
5 2 (1.68%) Data Structures
5 2 (1.68%) Greenfield Project
5 2 (1.68%) Mobile App
6 1 (0.84%) Blog
6 1 (0.84%) Self-Motivation
Operating Systems
1 2 (1.68%) Windows
2 1 (0.84%) Android
2 1 (0.84%) Mac OS X
Processes & Methodologies
1 88 (73.95%) Agile Software Development
2 50 (42.02%) BDD
3 45 (37.82%) Continuous Integration
4 42 (35.29%) Microservices
5 38 (31.93%) Scrum
6 28 (23.53%) Kanban
7 22 (18.49%) DevOps
8 19 (15.97%) MVC
8 19 (15.97%) Wireframes
9 17 (14.29%) Migration
10 15 (12.61%) E-Commerce
11 13 (10.92%) Continuous Deployment
12 12 (10.08%) Front End Development
13 11 (9.24%) Cross-Browser Compatibility
14 10 (8.40%) UML
15 9 (7.56%) Business Intelligence
15 9 (7.56%) SDLC
15 9 (7.56%) Unit Testing
16 8 (6.72%) Open Source
16 8 (6.72%) Virtual Infrastructure
Programming Languages
1 73 (61.34%) Java
2 55 (46.22%) JavaScript
3 32 (26.89%) Java 8
4 25 (21.01%) C#
5 24 (20.17%) SQL
6 7 (5.88%) PHP
7 5 (4.20%) ES6
8 4 (3.36%) ES7
8 4 (3.36%) ES8
8 4 (3.36%) TypeScript
9 2 (1.68%) PHP 7
9 2 (1.68%) PowerShell
9 2 (1.68%) Python
9 2 (1.68%) Ruby
10 1 (0.84%) Go
10 1 (0.84%) Scala
10 1 (0.84%) VB.NET
10 1 (0.84%) XAML
Qualifications
1 40 (33.61%) Security Cleared
2 37 (31.09%) SC Cleared
3 4 (3.36%) ISTQB
4 3 (2.52%) ISEB
5 2 (1.68%) DBS Check
6 1 (0.84%) BPSS Clearance
6 1 (0.84%) Degree
Quality Assurance & Compliance
1 6 (5.04%) QA
2 5 (4.20%) PMO
System Software
1 27 (22.69%) Docker
2 8 (6.72%) VMware Infrastructure
2 8 (6.72%) vSphere
Systems Management
1 4 (3.36%) Kubernetes
2 2 (1.68%) Ansible
3 1 (0.84%) Capistrano
3 1 (0.84%) Kibana
3 1 (0.84%) Terraform
Vendors
1 14 (11.76%) Microsoft
2 13 (10.92%) IBM
3 8 (6.72%) VMware
4 5 (4.20%) Xamarin
5 3 (2.52%) Google
6 2 (1.68%) Sitecore
6 2 (1.68%) Zend
7 1 (0.84%) Jaspersoft
7 1 (0.84%) Oracle
7 1 (0.84%) SAP
7 1 (0.84%) Splunk