Period
to 21 November 2017

The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for ATDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited ATDD over the 6 months to 21 November 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.

Acceptance Test-Driven Development (ATDD)
East of England > Hertfordshire
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 98 68 98
Rank change year-on-year -30 +30 -
Contract jobs citing ATDD 3 25 2
As % of all contract IT jobs advertised in Hertfordshire 0.19% 1.80% 0.12%
As % of the Processes & Methodologies category 0.24% 2.35% 0.16%
Number of daily rates quoted 2 20 0
Hertfordshire median daily rate £525 £438 -
Median daily rate % change year-on-year +20.00% - -
East of England median daily rate £380 £475 -
% change year-on-year -20.00% - -
Number of hourly rates quoted 0 0 0
Hertfordshire median hourly rate - - -
East of England median hourly rate - - -

ATDD 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 Hertfordshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Hertfordshire
Contract vacancies with a requirement for process or methodology skills 1265 1064 1223
As % of all contract IT jobs advertised in Hertfordshire 80.11% 76.77% 75.82%
Number of daily rates quoted 631 616 615
Hertfordshire median daily rate £400 £413 £400
Median daily rate % change year-on-year -3.03% +3.13% +6.67%
10th Percentile £213 £222 £225
90th Percentile £575 £538 £567
East of England median daily rate £425 £400 £400
% change year-on-year +6.25% - +6.67%
Number of hourly rates quoted 65 57 98
Hertfordshire median hourly rate £18.00 £33.50 £21.00
Median hourly rate % change year-on-year -46.27% +59.50% +31.27%
10th Percentile £13.00 £10.63 £9.70
90th Percentile £46.50 £53.75 £42.88
East of England median hourly rate £31.03 £31.50 £25.50
% change year-on-year -1.49% +23.53% +3.83%

ATDD
Job Vacancy Trend in Hertfordshire

Job postings citing ATDD as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for ATDD in Hertfordshire

ATDD
Contractor Daily Rate Trend in Hertfordshire

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

Contractor daily rate trend for ATDD in Hertfordshire

For the 6 months to 21 November 2017, IT contractor jobs citing ATDD 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 Hertfordshire region with a requirement for ATDD.

1 3 (100.00%) Java
1 3 (100.00%) TDD
1 3 (100.00%) BDD
1 3 (100.00%) Continuous Delivery
2 2 (66.67%) SoapUI
2 2 (66.67%) High Availability
2 2 (66.67%) Test Strategy
2 2 (66.67%) Gherkin
2 2 (66.67%) Agile Software Development
2 2 (66.67%) Git (software)
2 2 (66.67%) Test Automation
2 2 (66.67%) RESTful
2 2 (66.67%) Scala
2 2 (66.67%) JBehave
2 2 (66.67%) WebDriver
2 2 (66.67%) Open Source
2 2 (66.67%) Confluence
2 2 (66.67%) Spring
2 2 (66.67%) Maven
2 2 (66.67%) Software Testing
2 2 (66.67%) JIRA
2 2 (66.67%) Selenium
2 2 (66.67%) Atlassian
2 2 (66.67%) Kanban
2 2 (66.67%) JUnit
2 2 (66.67%) Tomcat
2 2 (66.67%) PostgreSQL
2 2 (66.67%) Hibernate
2 2 (66.67%) Scrum
2 2 (66.67%) Cucumber

ATDD
Co-occurring IT Skills in Hertfordshire 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 2 (66.67%) Confluence
1 2 (66.67%) Tomcat
Database & Business Intelligence
1 2 (66.67%) PostgreSQL
2 1 (33.33%) Apache Cassandra
2 1 (33.33%) DB2
2 1 (33.33%) MySQL
2 1 (33.33%) NoSQL
2 1 (33.33%) Oracle Database
2 1 (33.33%) RDBMS
2 1 (33.33%) Relational Database
Development Applications
1 2 (66.67%) Cucumber
1 2 (66.67%) Git (software)
1 2 (66.67%) JBehave
1 2 (66.67%) JIRA
1 2 (66.67%) JUnit
1 2 (66.67%) Maven
1 2 (66.67%) Selenium
1 2 (66.67%) SoapUI
1 2 (66.67%) WebDriver
2 1 (33.33%) Apache Ivy
2 1 (33.33%) Bitbucket
2 1 (33.33%) EasyMock
2 1 (33.33%) GoCD
2 1 (33.33%) Gradle
2 1 (33.33%) Jenkins
2 1 (33.33%) jMock
2 1 (33.33%) Mockito
2 1 (33.33%) Moq
2 1 (33.33%) Sonatype Nexus
2 1 (33.33%) TeamCity
Job Titles
1 2 (66.67%) Java Engineer
1 2 (66.67%) Senior Java Engineer
1 2 (66.67%) Senior Test Engineer
1 2 (66.67%) Test Engineer
2 1 (33.33%) Developer
2 1 (33.33%) Java Developer
2 1 (33.33%) Java Scala Developer
2 1 (33.33%) Scala Developer
2 1 (33.33%) Senior Test Automation Engineer
2 1 (33.33%) Test Automation Engineer
Libraries, Frameworks & Software Standards
1 2 (66.67%) Gherkin
1 2 (66.67%) Hibernate
1 2 (66.67%) RESTful
1 2 (66.67%) Spring
2 1 (33.33%) Akka
2 1 (33.33%) Kafka
2 1 (33.33%) LAMP
2 1 (33.33%) LAPP Stack
Operating Systems
1 1 (33.33%) Linux
1 1 (33.33%) Solaris
1 1 (33.33%) Unix
Processes & Methodologies
1 3 (100.00%) BDD
1 3 (100.00%) Continuous Delivery
1 3 (100.00%) TDD
2 2 (66.67%) Agile Software Development
2 2 (66.67%) High Availability
2 2 (66.67%) Kanban
2 2 (66.67%) Open Source
2 2 (66.67%) Scrum
2 2 (66.67%) Software Testing
2 2 (66.67%) Test Automation
2 2 (66.67%) Test Strategy
3 1 (33.33%) Continuous Integration
3 1 (33.33%) CQRS
3 1 (33.33%) Domain Models
3 1 (33.33%) Integration Testing
3 1 (33.33%) Non-Functional Testing
3 1 (33.33%) OO
3 1 (33.33%) Regression Testing
3 1 (33.33%) SDET
3 1 (33.33%) System Integration Testing
Programming Languages
1 3 (100.00%) Java
2 2 (66.67%) Scala
3 1 (33.33%) Groovy
3 1 (33.33%) PL/SQL
3 1 (33.33%) Python
3 1 (33.33%) Shell Script
3 1 (33.33%) SQL
Qualifications
1 1 (33.33%) SC Cleared
1 1 (33.33%) Security Cleared
Vendors
1 2 (66.67%) Atlassian
2 1 (33.33%) Oracle
2 1 (33.33%) Sonatype