Period
to 26 May 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 26 May 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
26 May 2018
Same period 2017 Same period 2016
Rank 12 32 50
Rank change year-on-year +20 +18 -6
Contract jobs citing TDD 72 36 11
As % of all contract IT jobs advertised in Northamptonshire 9.92% 4.61% 1.58%
As % of the Processes & Methodologies category 11.50% 5.66% 1.79%
Number of daily rates quoted 47 18 21
Northamptonshire median daily rate £425 £385 £500
Median daily rate % change year-on-year +10.39% -23.00% +25.00%
10th Percentile £334 £306 £425
90th Percentile £530 £462 £538
East Midlands median daily rate £405 £380 £450
% change year-on-year +6.58% -15.56% +15.38%
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 626 636 615
As % of all contract IT jobs advertised in Northamptonshire 86.23% 81.43% 88.36%
Number of daily rates quoted 367 419 458
Northamptonshire median daily rate £400 £413 £400
Median daily rate % change year-on-year -3.03% +3.13% -3.44%
10th Percentile £288 £258 £263
90th Percentile £538 £557 £575
East Midlands median daily rate £400 £395 £375
% change year-on-year +1.27% +5.33% +2.74%
Number of hourly rates quoted 11 12 6
Northamptonshire median hourly rate £11.17 £14.25 £13.00
Median hourly rate % change year-on-year -21.61% +9.62% -22.56%
10th Percentile £10.29 £10.50 £10.63
90th Percentile £47.50 £38.78 £35.63
East Midlands median hourly rate £17.00 £16.03 £17.50
% change year-on-year +6.08% -8.43% +4.48%

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 26 May 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 26 May 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 +25 52 £425 +25.93% 5
Kettering - 1 £410 - 1
TDD
East Midlands

For the 6 months to 26 May 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 54 (75.00%) Agile Software Development
2 44 (61.11%) Java
3 40 (55.56%) OO
4 36 (50.00%) Test Automation
5 30 (41.67%) Spring
6 28 (38.89%) Microservices
7 27 (37.50%) Hibernate
8 25 (34.72%) Git (software)
9 22 (30.56%) Maven
9 22 (30.56%) SonarQube
10 21 (29.17%) BDD
10 21 (29.17%) Node.js
11 20 (27.78%) Java 8
12 19 (26.39%) Spring Boot
13 18 (25.00%) JSON
14 17 (23.61%) RESTful
14 17 (23.61%) JavaScript
15 16 (22.22%) Unit Testing
16 15 (20.83%) Scrum
17 14 (19.44%) HTML
17 14 (19.44%) CSS
17 14 (19.44%) Front End Development
18 13 (18.06%) gulp
18 13 (18.06%) React
18 13 (18.06%) Finance
18 13 (18.06%) Ajax
18 13 (18.06%) Perforce
18 13 (18.06%) Selenium
19 12 (16.67%) jQuery
19 12 (16.67%) CSS3

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 4 (5.56%) JBoss
2 3 (4.17%) Tomcat
3 2 (2.78%) Apache
3 2 (2.78%) Apache Solr
3 2 (2.78%) Elasticsearch
3 2 (2.78%) NServiceBus
4 1 (1.39%) Apache Spark
4 1 (1.39%) Confluence
Applications
1 2 (2.78%) Chatbot
Cloud Services
1 11 (15.28%) npm
2 8 (11.11%) Amazon AWS
2 8 (11.11%) Google Analytics
2 8 (11.11%) PaaS
3 1 (1.39%) Microsoft Azure
Database & Business Intelligence
1 9 (12.50%) MongoDB
1 9 (12.50%) NoSQL
2 3 (4.17%) Relational Database
2 3 (4.17%) SQL Server
3 2 (2.78%) Hadoop
3 2 (2.78%) RDBMS
4 1 (1.39%) DB2
4 1 (1.39%) MySQL
4 1 (1.39%) PostgreSQL
4 1 (1.39%) RavenDB
Development Applications
1 25 (34.72%) Git (software)
2 22 (30.56%) Maven
2 22 (30.56%) SonarQube
3 13 (18.06%) gulp
3 13 (18.06%) Selenium
4 12 (16.67%) Grunt
5 11 (15.28%) Cucumber
6 10 (13.89%) Jenkins
6 10 (13.89%) JUnit
7 9 (12.50%) Subversion
8 6 (8.33%) JIRA
9 4 (5.56%) SoapUI
10 3 (4.17%) Gradle
10 3 (4.17%) WebDriver
11 2 (2.78%) Bitbucket
11 2 (2.78%) CA Release Automation
11 2 (2.78%) LoadUI
11 2 (2.78%) Octopus Deploy
11 2 (2.78%) Team Foundation Server
11 2 (2.78%) TestRail
General
1 13 (18.06%) Finance
2 12 (16.67%) Banking
3 8 (11.11%) Advertising
3 8 (11.11%) Marketing
4 2 (2.78%) Retail Banking
Job Titles
1 43 (59.72%) Developer
2 22 (30.56%) Java Developer
3 15 (20.83%) Architect
4 10 (13.89%) UI Developer
5 8 (11.11%) E-Commerce Architect
5 8 (11.11%) E-Commerce Solution Architect
5 8 (11.11%) Solutions Architect
6 7 (9.72%) Digital Architect
6 7 (9.72%) Digital Solutions Architect
7 6 (8.33%) Java Architect
7 6 (8.33%) Tester
8 4 (5.56%) Automation Tester
9 3 (4.17%) .NET Developer
9 3 (4.17%) Front End Developer (Client-Side Developer)
9 3 (4.17%) Full Stack Developer
9 3 (4.17%) JavaScript Developer
10 2 (2.78%) Agile Developer
10 2 (2.78%) React Developer
10 2 (2.78%) Selenium Tester
10 2 (2.78%) Test Engineer
Libraries, Frameworks & Software Standards
1 30 (41.67%) Spring
2 27 (37.50%) Hibernate
3 21 (29.17%) Node.js
4 19 (26.39%) Spring Boot
5 18 (25.00%) JSON
6 17 (23.61%) RESTful
7 14 (19.44%) CSS
7 14 (19.44%) HTML
8 13 (18.06%) Ajax
8 13 (18.06%) React
9 12 (16.67%) .NET
9 12 (16.67%) CSS3
9 12 (16.67%) HTML5
9 12 (16.67%) jQuery
9 12 (16.67%) Web Services
10 11 (15.28%) Java EE
11 10 (13.89%) AngularJS
11 10 (13.89%) SOAP
12 9 (12.50%) Kafka
12 9 (12.50%) XML
Miscellaneous
1 3 (4.17%) Computer Science
2 2 (2.78%) Analytical Skills
2 2 (2.78%) IVR
2 2 (2.78%) Mobile App
Operating Systems
1 11 (15.28%) Linux
1 11 (15.28%) Windows
2 9 (12.50%) Mac OS
3 2 (2.78%) Solaris
4 1 (1.39%) Android
Processes & Methodologies
1 54 (75.00%) Agile Software Development
2 40 (55.56%) OO
3 36 (50.00%) Test Automation
4 28 (38.89%) Microservices
5 21 (29.17%) BDD
6 16 (22.22%) Unit Testing
7 15 (20.83%) Scrum
8 14 (19.44%) Front End Development
9 11 (15.28%) OOP
9 11 (15.28%) Performance Optimisation
10 10 (13.89%) Continuous Integration
11 9 (12.50%) E-Commerce
12 8 (11.11%) Analytics
12 8 (11.11%) Cybersecurity
12 8 (11.11%) SDLC
13 7 (9.72%) DevOps
14 5 (6.94%) Kanban
14 5 (6.94%) Pair Programming
14 5 (6.94%) Problem-Solving
15 3 (4.17%) Software Engineering
Programming Languages
1 44 (61.11%) Java
2 20 (27.78%) Java 8
3 17 (23.61%) JavaScript
4 12 (16.67%) C#
5 7 (9.72%) SQL
6 3 (4.17%) ES6
7 2 (2.78%) Bash Shell
7 2 (2.78%) PowerShell
7 2 (2.78%) Python
Qualifications
1 3 (4.17%) Computer Science Degree
1 3 (4.17%) Degree
2 2 (2.78%) ISEB
2 2 (2.78%) ISTQB
Quality Assurance & Compliance
1 3 (4.17%) QA
System Software
1 9 (12.50%) Docker
Systems Management
1 4 (5.56%) Opscode Chef
2 2 (2.78%) logstash
2 2 (2.78%) Terraform
Vendors
1 13 (18.06%) Perforce
2 8 (11.11%) Google
3 4 (5.56%) Oracle
4 2 (2.78%) Ab Initio
4 2 (2.78%) MuleSoft