Period
to 16 August 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 16 August 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
16 Aug 2018
Same period 2017 Same period 2016
Rank 15 42 42
Rank change year-on-year +27 0 -5
Contract jobs citing TDD 132 46 62
As % of all contract IT jobs advertised in Birmingham 9.02% 3.47% 4.03%
As % of the Processes & Methodologies category 11.09% 4.19% 4.85%
Number of daily rates quoted 89 37 46
Birmingham median daily rate £425 £400 £375
Median daily rate % change year-on-year +6.25% +6.67% -
10th Percentile £293 £298 £300
90th Percentile £543 £500 £438
West Midlands median daily rate £450 £375 £425
% change year-on-year +20.00% -11.76% +21.43%
Number of hourly rates quoted 0 0 0
Birmingham median hourly rate - - -
West Midlands median hourly rate - - -

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 1,190 1,099 1,279
As % of all contract IT jobs advertised in Birmingham 81.34% 82.88% 83.05%
Number of daily rates quoted 804 768 858
Birmingham median daily rate £413 £400 £388
Median daily rate % change year-on-year +3.13% +3.23% +6.16%
10th Percentile £255 £263 £240
90th Percentile £563 £525 £538
West Midlands median daily rate £425 £400 £400
% change year-on-year +6.25% - +6.67%
Number of hourly rates quoted 41 18 29
Birmingham median hourly rate £15.00 £14.22 £16.00
Median hourly rate % change year-on-year +5.52% -11.16% -32.63%
10th Percentile £10.50 £10.88 £10.73
90th Percentile £27.00 £36.80 £38.80
West Midlands median hourly rate £15.25 £20.00 £17.00
% change year-on-year -23.75% +17.65% -24.44%

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 16 August 2018.

Contractor daily rate histogram for TDD in Birmingham

For the 6 months to 16 August 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 96 (72.73%) Agile Software Development
2 91 (68.94%) Java
3 71 (53.79%) JavaScript
4 67 (50.76%) BDD
5 64 (48.48%) Git (software)
6 63 (47.73%) HTML
7 61 (46.21%) CSS
7 61 (46.21%) Spring
8 54 (40.91%) Apache Camel
9 53 (40.15%) Spring Boot
10 52 (39.39%) Security Cleared
11 50 (37.88%) Web Services
12 48 (36.36%) RESTful
13 47 (35.61%) SC Cleared
14 45 (34.09%) Scrum
15 40 (30.30%) Continuous Integration
16 38 (28.79%) Java 8
17 37 (28.03%) Hibernate
17 37 (28.03%) Microservices
18 35 (26.52%) SQL Server
19 34 (25.76%) SQL
19 34 (25.76%) React
20 31 (23.48%) Relational Database
20 31 (23.48%) Kanban
20 31 (23.48%) HTML5
20 31 (23.48%) RabbitMQ
21 29 (21.97%) KnockoutJS
21 29 (21.97%) Jenkins
21 29 (21.97%) PostgreSQL
21 29 (21.97%) Migration

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 29 (21.97%) WebSphere
2 4 (3.03%) Apache
2 4 (3.03%) Elasticsearch
3 2 (1.52%) CMS
3 2 (1.52%) EPiServer
3 2 (1.52%) Sitecore CMS
4 1 (0.76%) Confluence
Applications
1 15 (11.36%) GIMP
1 15 (11.36%) Photoshop
Business Applications
1 3 (2.27%) Dynamics CRM
Cloud Services
1 17 (12.88%) Amazon AWS
2 11 (8.33%) Amazon EC2
2 11 (8.33%) Microsoft Azure
3 4 (3.03%) npm
4 3 (2.27%) GitHub
4 3 (2.27%) SaaS
4 3 (2.27%) Yarn
5 2 (1.52%) Azure Functions
5 2 (1.52%) Dynamics 365
5 2 (1.52%) IaaS
5 2 (1.52%) PaaS
5 2 (1.52%) Serverless
6 1 (0.76%) Cloud Computing
6 1 (0.76%) Google Cloud Platform
Communications & Networking
1 5 (3.79%) SMS
2 2 (1.52%) VoIP
3 1 (0.76%) HTTP
Database & Business Intelligence
1 35 (26.52%) SQL Server
2 31 (23.48%) Relational Database
3 29 (21.97%) PostgreSQL
4 6 (4.55%) Data Warehouse
4 6 (4.55%) NoSQL
5 5 (3.79%) MySQL
6 4 (3.03%) MongoDB
7 3 (2.27%) Apache Cassandra
8 2 (1.52%) Azure SQL Database
8 2 (1.52%) RDBMS
8 2 (1.52%) Redis
9 1 (0.76%) Neo4j
9 1 (0.76%) Semantic Layer
9 1 (0.76%) SQL Server 2012
Development Applications
1 64 (48.48%) Git (software)
2 29 (21.97%) Jenkins
3 28 (21.21%) Subversion
4 26 (19.70%) Maven
5 23 (17.42%) JUnit
5 23 (17.42%) Mockito
6 22 (16.67%) DbUnit
6 22 (16.67%) jMock
6 22 (16.67%) SonarQube
7 11 (8.33%) Selenium
8 10 (7.58%) Cucumber
9 6 (4.55%) gulp
10 5 (3.79%) JIRA
10 5 (3.79%) webpack
11 4 (3.03%) Jasmine
11 4 (3.03%) Karma Test Runner
11 4 (3.03%) SoapUI
11 4 (3.03%) Visual Studio
12 3 (2.27%) Protractor
13 2 (1.52%) Grunt
General
1 9 (6.82%) Retail
2 6 (4.55%) Finance
3 1 (0.76%) Advertising
3 1 (0.76%) Back Office
3 1 (0.76%) Electronics
3 1 (0.76%) Games
3 1 (0.76%) Manufacturing
3 1 (0.76%) Marketing
3 1 (0.76%) Telecoms
Job Titles
1 112 (84.85%) Developer
2 76 (57.58%) Java Developer
3 19 (14.39%) Full Stack Developer
4 18 (13.64%) JavaScript Developer
5 17 (12.88%) J2EE Developer
5 17 (12.88%) Java/J2EE Developer
5 17 (12.88%) UI Developer
6 16 (12.12%) HTML CSS Developer
6 16 (12.12%) HTML Developer
7 14 (10.61%) Angular Developer
8 10 (7.58%) Agile Developer
8 10 (7.58%) Front End Developer (Client-Side Developer)
9 7 (5.30%) .NET Developer
10 6 (4.55%) Agile Java Developer
11 5 (3.79%) Project Leader
11 5 (3.79%) React Developer
11 5 (3.79%) Test Leader
12 4 (3.03%) AWS Developer
12 4 (3.03%) Lead Developer
12 4 (3.03%) Test Project Leader
Libraries, Frameworks & Software Standards
1 63 (47.73%) HTML
2 61 (46.21%) CSS
2 61 (46.21%) Spring
3 54 (40.91%) Apache Camel
4 53 (40.15%) Spring Boot
5 50 (37.88%) Web Services
6 48 (36.36%) RESTful
7 37 (28.03%) Hibernate
8 34 (25.76%) React
9 31 (23.48%) HTML5
9 31 (23.48%) RabbitMQ
10 29 (21.97%) KnockoutJS
11 26 (19.70%) AngularJS
11 26 (19.70%) jQuery
11 26 (19.70%) SOAP
12 25 (18.94%) CSS3
12 25 (18.94%) J2EE
12 25 (18.94%) Sass
13 22 (16.67%) LESS
13 22 (16.67%) PowerMock
Miscellaneous
1 27 (20.45%) User Experience
2 9 (6.82%) NHS
3 7 (5.30%) Digital Media
4 4 (3.03%) Analytical Skills
5 2 (1.52%) Data Centre
5 2 (1.52%) Data Structures
5 2 (1.52%) Greenfield Project
5 2 (1.52%) Self-Motivation
6 1 (0.76%) Blog
6 1 (0.76%) Mobile App
Operating Systems
1 2 (1.52%) Mac OS X
1 2 (1.52%) Windows
2 1 (0.76%) Linux
2 1 (0.76%) Unix
Processes & Methodologies
1 96 (72.73%) Agile Software Development
2 67 (50.76%) BDD
3 45 (34.09%) Scrum
4 40 (30.30%) Continuous Integration
5 37 (28.03%) Microservices
6 31 (23.48%) Kanban
7 29 (21.97%) Migration
8 20 (15.15%) Wireframes
9 18 (13.64%) DevOps
9 18 (13.64%) E-Commerce
10 17 (12.88%) MVC
11 15 (11.36%) Cross-Browser Compatibility
11 15 (11.36%) Test Automation
12 12 (9.09%) Business Intelligence
13 11 (8.33%) Virtual Infrastructure
14 10 (7.58%) Front End Development
14 10 (7.58%) Open Source
14 10 (7.58%) SDLC
15 8 (6.06%) Unit Testing
15 8 (6.06%) Web Development
Programming Languages
1 91 (68.94%) Java
2 71 (53.79%) JavaScript
3 38 (28.79%) Java 8
4 34 (25.76%) SQL
5 16 (12.12%) C#
6 5 (3.79%) ES6
6 5 (3.79%) PHP
6 5 (3.79%) TypeScript
7 4 (3.03%) ES7
7 4 (3.03%) ES8
8 3 (2.27%) PHP 7
8 3 (2.27%) Ruby
9 2 (1.52%) PowerShell
9 2 (1.52%) Python
9 2 (1.52%) Scala
10 1 (0.76%) C
10 1 (0.76%) Go
10 1 (0.76%) VB.NET
10 1 (0.76%) XAML
Qualifications
1 52 (39.39%) Security Cleared
2 47 (35.61%) SC Cleared
3 5 (3.79%) ISTQB
4 4 (3.03%) DBS Check
4 4 (3.03%) ISEB
5 1 (0.76%) BPSS Clearance
5 1 (0.76%) Degree
Quality Assurance & Compliance
1 6 (4.55%) PMO
1 6 (4.55%) QA
2 1 (0.76%) GCP
System Software
1 21 (15.91%) Docker
2 11 (8.33%) VMware Infrastructure
2 11 (8.33%) vSphere
Systems Management
1 3 (2.27%) Kubernetes
2 2 (1.52%) Ansible
2 2 (1.52%) Capistrano
3 1 (0.76%) Business Desktop Deployment
3 1 (0.76%) Kibana
3 1 (0.76%) Single Sign-On
Vendors
1 28 (21.21%) IBM
2 11 (8.33%) VMware
3 8 (6.06%) Microsoft
4 5 (3.79%) Xamarin
5 3 (2.27%) Capita
6 2 (1.52%) Jaspersoft
6 2 (1.52%) Oracle
6 2 (1.52%) Sitecore
6 2 (1.52%) Zend
7 1 (0.76%) SAP
7 1 (0.76%) Splunk