Period
to 20 August 2018

The following table provides summary statistics for contract job vacancies advertised in Northamptonshire 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 20 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)
East Midlands > Northamptonshire
6 months to
20 Aug 2018
Same period 2017 Same period 2016
Rank 14 22 55
Rank change year-on-year +8 +33 -12
Contract jobs citing TDD 76 43 13
As % of all contract IT jobs advertised in Northamptonshire 9.04% 6.13% 1.77%
As % of the Processes & Methodologies category 10.44% 7.25% 2.01%
Number of daily rates quoted 57 20 8
Northamptonshire median daily rate £450 £400 £500
Median daily rate % change year-on-year +12.50% -20.00% +17.65%
10th Percentile £361 £306 £375
90th Percentile £538 £514 £561
East Midlands median daily rate £410 £380 £400
% change year-on-year +7.89% -5.00% +5.96%
Number of hourly rates quoted 0 0 0
Northamptonshire median hourly rate - - -
East 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 Northamptonshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Northamptonshire
Contract vacancies with a requirement for process or methodology skills 728 593 648
As % of all contract IT jobs advertised in Northamptonshire 86.56% 84.47% 88.40%
Number of daily rates quoted 467 406 488
Northamptonshire median daily rate £400 £420 £425
Median daily rate % change year-on-year -4.76% -1.18% -
10th Percentile £306 £225 £290
90th Percentile £538 £538 £575
East Midlands median daily rate £400 £400 £400
Number of hourly rates quoted 7 7 7
Northamptonshire median hourly rate £11.17 £13.00 £18.75
Median hourly rate % change year-on-year -14.08% -30.67% +1.24%
10th Percentile £10.82 £9.85 £10.00
90th Percentile £18.09 £88.00 £40.00
East Midlands median hourly rate £15.50 £14.35 £14.50
% change year-on-year +8.01% -1.03% -17.14%

TDD
Job Vacancy Trend in Northamptonshire

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

Job vacancy trend for TDD in Northamptonshire

TDD
Contractor Daily Rate Trend in Northamptonshire

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

Contractor daily rate trend for TDD in Northamptonshire

TDD
Contractor Daily Rate Histogram in Northamptonshire

The daily rate distribution of IT jobs citing TDD in Northamptonshire over the 6 months to 20 August 2018.

Contractor daily rate histogram for TDD in Northamptonshire

TDD
Contract Job Locations in Northamptonshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Northamptonshire region over the 6 months to 20 August 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Northampton +6 56 £423 +25.33% 7
Corby - 2 - - 1
Kettering - 2 £430 - 7
TDD
East Midlands

For the 6 months to 20 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 Northamptonshire region with a requirement for TDD.

1 52 (68.42%) Agile Software Development
2 45 (59.21%) Java
3 40 (52.63%) Test Automation
4 35 (46.05%) Git (software)
5 34 (44.74%) OO
6 28 (36.84%) Spring
7 27 (35.53%) Hibernate
8 25 (32.89%) JavaScript
8 25 (32.89%) SonarQube
9 24 (31.58%) Maven
10 23 (30.26%) Unit Testing
10 23 (30.26%) HTML
10 23 (30.26%) CSS
11 22 (28.95%) Node.js
12 21 (27.63%) CSS3
12 21 (27.63%) AngularJS
12 21 (27.63%) React
12 21 (27.63%) Microservices
12 21 (27.63%) JSON
12 21 (27.63%) HTML5
13 19 (25.00%) jQuery
13 19 (25.00%) Front End Development
13 19 (25.00%) Grunt
13 19 (25.00%) Java 8
14 18 (23.68%) Spring Boot
15 17 (22.37%) RESTful
16 15 (19.74%) Selenium
16 15 (19.74%) Ajax
17 14 (18.42%) Cucumber
17 14 (18.42%) Linux

TDD
Co-occurring IT Skills in Northamptonshire 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 3 (3.95%) JBoss
1 3 (3.95%) NServiceBus
2 1 (1.32%) Apache
2 1 (1.32%) Apache Solr
2 1 (1.32%) Confluence
2 1 (1.32%) Elasticsearch
2 1 (1.32%) Tomcat
Applications
1 2 (2.63%) Chatbot
Cloud Services
1 11 (14.47%) npm
2 4 (5.26%) Microsoft Azure
3 2 (2.63%) Amazon AWS
4 1 (1.32%) Google Cloud Platform
4 1 (1.32%) OpenShift
Database & Business Intelligence
1 2 (2.63%) Relational Database
2 1 (1.32%) Hadoop
2 1 (1.32%) MongoDB
2 1 (1.32%) NoSQL
2 1 (1.32%) RavenDB
2 1 (1.32%) RDBMS
2 1 (1.32%) SQL Server
Development Applications
1 35 (46.05%) Git (software)
2 25 (32.89%) SonarQube
3 24 (31.58%) Maven
4 19 (25.00%) Grunt
5 15 (19.74%) Selenium
6 14 (18.42%) Cucumber
6 14 (18.42%) gulp
7 13 (17.11%) Subversion
8 12 (15.79%) Jenkins
9 9 (11.84%) JUnit
10 8 (10.53%) webpack
11 7 (9.21%) SoapUI
12 5 (6.58%) Bitbucket
12 5 (6.58%) JIRA
12 5 (6.58%) LoadUI
13 3 (3.95%) NUnit
13 3 (3.95%) Octopus Deploy
13 3 (3.95%) Team Foundation Server
13 3 (3.95%) WebDriver
14 2 (2.63%) Gradle
General
1 14 (18.42%) Finance
2 10 (13.16%) Banking
3 2 (2.63%) Retail Banking
4 1 (1.32%) Investment Banking
Job Titles
1 55 (72.37%) Developer
2 24 (31.58%) Java Developer
3 15 (19.74%) UI Developer
4 9 (11.84%) React Developer
5 8 (10.53%) JavaScript Developer
6 7 (9.21%) Architect
6 7 (9.21%) Front End Developer (Client-Side Developer)
7 6 (7.89%) Java Architect
7 6 (7.89%) Tester
8 5 (6.58%) .NET Developer
9 4 (5.26%) Automation Tester
10 3 (3.95%) Agile .NET Developer
10 3 (3.95%) Agile Developer
11 2 (2.63%) Agile Tester
11 2 (2.63%) Angular Developer
11 2 (2.63%) Full Stack Developer
11 2 (2.63%) Selenium Tester
11 2 (2.63%) Senior Automation Tester
11 2 (2.63%) Test Automation Engineer
11 2 (2.63%) Test Engineer
Libraries, Frameworks & Software Standards
1 28 (36.84%) Spring
2 27 (35.53%) Hibernate
3 23 (30.26%) CSS
3 23 (30.26%) HTML
4 22 (28.95%) Node.js
5 21 (27.63%) AngularJS
5 21 (27.63%) CSS3
5 21 (27.63%) HTML5
5 21 (27.63%) JSON
5 21 (27.63%) React
6 19 (25.00%) jQuery
7 18 (23.68%) Spring Boot
8 17 (22.37%) RESTful
9 15 (19.74%) Ajax
10 11 (14.47%) Java EE
10 11 (14.47%) Web Services
11 9 (11.84%) SOAP
11 9 (11.84%) XML
12 8 (10.53%) Apollo GraphQL
12 8 (10.53%) GraphQL
Miscellaneous
1 5 (6.58%) User Experience
2 3 (3.95%) Computer Science
3 2 (2.63%) IVR
3 2 (2.63%) Mobile App
4 1 (1.32%) Analytical Skills
Operating Systems
1 14 (18.42%) Linux
2 12 (15.79%) Windows
3 10 (13.16%) Mac OS
4 2 (2.63%) Solaris
5 1 (1.32%) Android
5 1 (1.32%) Unix
Processes & Methodologies
1 52 (68.42%) Agile Software Development
2 40 (52.63%) Test Automation
3 34 (44.74%) OO
4 23 (30.26%) Unit Testing
5 21 (27.63%) Microservices
6 19 (25.00%) Front End Development
7 14 (18.42%) DevOps
7 14 (18.42%) OOP
7 14 (18.42%) Scrum
8 13 (17.11%) BDD
8 13 (17.11%) Continuous Integration
9 11 (14.47%) Performance Optimisation
10 9 (11.84%) SDLC
11 8 (10.53%) Pair Programming
12 7 (9.21%) Kanban
13 5 (6.58%) Problem-Solving
13 5 (6.58%) Software Engineering
14 4 (5.26%) Continuous Delivery
14 4 (5.26%) E-Commerce
14 4 (5.26%) Mentoring
Programming Languages
1 45 (59.21%) Java
2 25 (32.89%) JavaScript
3 19 (25.00%) Java 8
4 12 (15.79%) ES6
5 6 (7.89%) C#
5 6 (7.89%) SQL
6 2 (2.63%) Python
7 1 (1.32%) Bash Shell
7 1 (1.32%) Groovy
7 1 (1.32%) PowerShell
Qualifications
1 3 (3.95%) Computer Science Degree
1 3 (3.95%) Degree
2 2 (2.63%) ISEB
2 2 (2.63%) ISTQB
Quality Assurance & Compliance
1 3 (3.95%) QA
2 2 (2.63%) WCAG
3 1 (1.32%) GCP
System Software
1 2 (2.63%) Docker
Systems Management
1 3 (3.95%) Opscode Chef
2 2 (2.63%) Terraform
3 1 (1.32%) Kubernetes
3 1 (1.32%) logstash
Vendors
1 12 (15.79%) Perforce
2 6 (7.89%) Oracle
3 2 (2.63%) MuleSoft
4 1 (1.32%) Ab Initio
4 1 (1.32%) Splunk