The following table provides summary statistics for contract job vacancies advertised in Salford with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 3 months to 28 March 2017 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)
Manchester / Salford
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 11 3 3
Rank change year-on-year -8 0  
Contract jobs citing TDD 11 24 7
As % of all contract IT jobs advertised in Salford 15.28% 54.55% 30.43%
As % of the Processes & Methodologies category 16.67% 55.81% 33.33%
Number of daily rates quoted 10 19 6
Median daily rate £425 £413 £413
Median daily rate % change year-on-year +3.03% -  
90% offered a daily rate of more than £398 £325 £356
10% offered a daily rate of more than £525 £490 £475
UK excluding London median daily rate £405 £400 £375
% change year-on-year +1.12% +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.00 £45.75 £36.00
% change year-on-year -14.75% +27.08%  

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Salford with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Salford
Contract job vacancies with a requirement for process and methodology skills 66 43 21
As % of all contract IT job vacancies advertised in Salford 91.67% 97.73% 91.30%
Number of daily rates quoted 60 33 15
Median daily rate £425 £424 £425
Median daily rate % change year-on-year +0.29% -0.29%  
90% offered a daily rate of more than £325 £325 £325
10% offered a daily rate of more than £575 £488 £480
UK excluding London median daily rate £410 £400 £396
% change year-on-year +2.50% +1.01%  
Number of hourly rates quoted 1 1 0
Median hourly rate £10.50 £15.00 -
Median hourly rate % change year-on-year -30.00% -  
UK excluding London median hourly rate £36.00 £38.50 £30.20
% change year-on-year -6.49% +27.48%  

TDD
Job Vacancy Trend in Salford

The job posting trend of jobs advertised in Salford citing TDD as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for TDD in Salford

TDD
Contractor Daily Rate Trend in Salford

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

Contractor daily rate trend for TDD in Salford

TDD
Contractor Daily Rate Histogram in Salford

The daily rate distribution of IT jobs citing TDD in Salford over the 3 months to 28 March 2017.

Contractor daily rate histogram for TDD in Salford

TDD
Top 30 Co-occurring IT Skills in Salford

For the 6 months to 28 March 2017, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Salford region with a requirement for TDD.

1 15 (83.33%) Agile Software Development
2 14 (77.78%) Software Engineering
3 12 (66.67%) BDD
4 11 (61.11%) JavaScript
5 9 (50.00%) Linux
5 9 (50.00%) Scrum
5 9 (50.00%) Node.js
5 9 (50.00%) REST
6 8 (44.44%) HTML5
6 8 (44.44%) Android
6 8 (44.44%) HTML
7 7 (38.89%) Git (software)
7 7 (38.89%) High Availability
7 7 (38.89%) Apple iOS
8 6 (33.33%) Mobile App
8 6 (33.33%) Apache Cordova
8 6 (33.33%) React
8 6 (33.33%) NoSQL
8 6 (33.33%) RESTful
8 6 (33.33%) Amazon AWS
8 6 (33.33%) SQL
8 6 (33.33%) JUnit
8 6 (33.33%) Web Services
8 6 (33.33%) HTTP
8 6 (33.33%) Games
9 5 (27.78%) XML
9 5 (27.78%) Performance Tuning
10 4 (22.22%) AngularJS
10 4 (22.22%) Java
10 4 (22.22%) Scala

TDD
Co-occurring IT Skills in Salford 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:

Cloud Services
1 6 (33.33%) Amazon AWS
2 2 (11.11%) GitHub
Communications & Networking
1 6 (33.33%) HTTP
Database & Business Intelligence
1 6 (33.33%) NoSQL
2 2 (11.11%) MarkLogic
2 2 (11.11%) MySQL
3 1 (5.56%) Big Data
3 1 (5.56%) Hadoop
3 1 (5.56%) Pentaho
Development Applications
1 7 (38.89%) Git (software)
2 6 (33.33%) JUnit
3 2 (11.11%) Babel
3 2 (11.11%) Jasmine
3 2 (11.11%) Mercurial
3 2 (11.11%) Mocha
3 2 (11.11%) Subversion
4 1 (5.56%) webpack
General
1 6 (33.33%) Games
2 3 (16.67%) Finance
Job Titles
1 7 (38.89%) Developer
1 7 (38.89%) Software Engineer
2 6 (33.33%) JavaScript Developer
3 4 (22.22%) Software Developer
4 3 (16.67%) Node.js Developer
4 3 (16.67%) Scala Software Engineer
5 2 (11.11%) Applications Consultant
5 2 (11.11%) Consultant
5 2 (11.11%) Linux Developer
5 2 (11.11%) Mobile Developer
5 2 (11.11%) Technical Leader
6 1 (5.56%) Agile Developer
6 1 (5.56%) Applications Engineer
6 1 (5.56%) AWS Engineer
6 1 (5.56%) AWS Software Engineer
6 1 (5.56%) Java Engineer
6 1 (5.56%) Java Scala Software Engineer
6 1 (5.56%) Java Software Engineer
6 1 (5.56%) Mobile Software Engineer
Libraries, Frameworks & Software Standards
1 9 (50.00%) Node.js
1 9 (50.00%) REST
2 8 (44.44%) HTML
2 8 (44.44%) HTML5
3 6 (33.33%) Apache Cordova
3 6 (33.33%) React
3 6 (33.33%) RESTful
3 6 (33.33%) Web Services
4 5 (27.78%) XML
5 4 (22.22%) AngularJS
6 3 (16.67%) GStreamer
6 3 (16.67%) JSON
6 3 (16.67%) XSLT
7 2 (11.11%) ActiveMQ
7 2 (11.11%) HTML5 Canvas
7 2 (11.11%) JMS
7 2 (11.11%) Pixi.js
7 2 (11.11%) WebGL
8 1 (5.56%) Ember.js
8 1 (5.56%) React Native
Miscellaneous
1 6 (33.33%) Mobile App
2 2 (11.11%) Computer Science
2 2 (11.11%) IPTV
2 2 (11.11%) Streaming Video
Operating Systems
1 9 (50.00%) Linux
2 8 (44.44%) Android
3 7 (38.89%) Apple iOS
4 2 (11.11%) Unix
Processes & Methodologies
1 15 (83.33%) Agile Software Development
2 14 (77.78%) Software Engineering
3 12 (66.67%) BDD
4 9 (50.00%) Scrum
5 7 (38.89%) High Availability
6 5 (27.78%) Performance Tuning
7 3 (16.67%) Kanban
7 3 (16.67%) Supplier Management
8 2 (11.11%) Android Development
8 2 (11.11%) Continuous Delivery
8 2 (11.11%) Continuous Integration
8 2 (11.11%) Software Testing
8 2 (11.11%) Use Case
9 1 (5.56%) iOS Development
9 1 (5.56%) Mentoring
9 1 (5.56%) Open Source
9 1 (5.56%) Pair Programming
9 1 (5.56%) Performance Analysis
Programming Languages
1 11 (61.11%) JavaScript
2 6 (33.33%) SQL
3 4 (22.22%) Java
3 4 (22.22%) Scala
4 3 (16.67%) ES6
5 1 (5.56%) Apple Swift
5 1 (5.56%) Clojure
5 1 (5.56%) ECMAScript
5 1 (5.56%) Objective-C
Qualifications
1 2 (11.11%) Degree
Quality Assurance & Compliance
1 1 (5.56%) QA
Vendors
1 3 (16.67%) Twitter
2 2 (11.11%) Oracle
3 1 (5.56%) Cloudera
Salford, Lancashire
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Posted: 6 days ago