Period
to 24 November 2017

The following table provides summary statistics for contract job vacancies advertised in Oxford 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 24 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.

Test-Driven Development (TDD)
Oxfordshire > Oxford
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 10 16 9
Rank change year-on-year +6 -7 +12
Contract jobs citing TDD 112 89 90
As % of all contract IT jobs advertised in Oxford 15.30% 12.48% 13.47%
As % of the Processes & Methodologies category 17.58% 14.31% 16.33%
Number of daily rates quoted 111 80 83
Oxford median daily rate £510 £458 £425
Median daily rate % change year-on-year +11.35% +7.76% +21.43%
10th Percentile £400 £338 £300
90th Percentile £625 £600 £500
Oxfordshire median daily rate £500 £450 £425
% change year-on-year +11.11% +5.88% +15.25%
Number of hourly rates quoted 0 2 2
Oxford median hourly rate - £36.25 £47.50
Median hourly rate % change year-on-year - -23.68% -
Oxfordshire median hourly rate - £36.25 £47.50
% change year-on-year - -23.68% -

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 Oxford with a requirement for process or methodology skills.

All Process and Methodology Skills
Oxford
Contract vacancies with a requirement for process or methodology skills 637 622 551
As % of all contract IT jobs advertised in Oxford 87.02% 87.24% 82.49%
Number of daily rates quoted 548 470 452
Oxford median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% -1.84%
10th Percentile £322 £192 £225
90th Percentile £588 £538 £520
Oxfordshire median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% +6.67%
Number of hourly rates quoted 8 15 25
Oxford median hourly rate £21.50 £20.00 £45.00
Median hourly rate % change year-on-year +7.50% -55.56% +221.43%
10th Percentile £14.30 £13.88 £12.20
90th Percentile £77.50 £44.15 £76.25
Oxfordshire median hourly rate £23.00 £20.00 £22.50
% change year-on-year +15.00% -11.11% +52.54%

TDD
Job Vacancy Trend in Oxford

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

Job vacancy trend for TDD in Oxford

TDD
Contractor Daily Rate Trend in Oxford

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

Contractor daily rate trend for TDD in Oxford

TDD
Contractor Daily Rate Histogram in Oxford

The daily rate distribution of IT jobs citing TDD in Oxford over the 6 months to 24 November 2017.

Contractor daily rate histogram for TDD in Oxford

For the 6 months to 24 November 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 Oxford region with a requirement for TDD.

1 98 (87.50%) Agile Software Development
2 71 (63.39%) Java
3 69 (61.61%) BDD
4 62 (55.36%) Amazon AWS
5 59 (52.68%) JavaScript
6 55 (49.11%) Scrum
7 48 (42.86%) AngularJS
8 47 (41.96%) Kanban
9 45 (40.18%) Continuous Integration
9 45 (40.18%) HTML
9 45 (40.18%) CSS
10 41 (36.61%) Pair Programming
10 41 (36.61%) Test Automation
11 38 (33.93%) Node.js
11 38 (33.93%) Unit Testing
12 29 (25.89%) Software Engineering
12 29 (25.89%) Web Services
12 29 (25.89%) React
13 26 (23.21%) Web Development
14 24 (21.43%) jQuery
15 22 (19.64%) QA
16 21 (18.75%) Maven
16 21 (18.75%) Git (software)
17 20 (17.86%) HTML5
17 20 (17.86%) API Development
17 20 (17.86%) MVC
18 19 (16.96%) JUnit
18 19 (16.96%) JSON
19 18 (16.07%) Linux
19 18 (16.07%) Sass

TDD
Co-occurring IT Skills in Oxford 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 8 (7.14%) JBoss
2 7 (6.25%) Apache Spark
2 7 (6.25%) WebSphere
3 5 (4.46%) Tomcat
4 4 (3.57%) Apache
5 2 (1.79%) IIS
6 1 (0.89%) CMS
6 1 (0.89%) Confluence
6 1 (0.89%) nginx
6 1 (0.89%) NServiceBus
6 1 (0.89%) Sitefinity
6 1 (0.89%) WebSphere Application Server
6 1 (0.89%) WebSphere Process Server
Business Applications
1 13 (11.61%) Magento
Cloud Services
1 62 (55.36%) Amazon AWS
2 6 (5.36%) GitHub
3 2 (1.79%) IaaS
3 2 (1.79%) Microsoft Azure
3 2 (1.79%) PaaS
4 1 (0.89%) Amazon EC2
4 1 (0.89%) Amazon S3
4 1 (0.89%) Amazon SQS
Communications & Networking
1 1 (0.89%) SMS
Database & Business Intelligence
1 16 (14.29%) MongoDB
2 15 (13.39%) NoSQL
3 7 (6.25%) Big Data
3 7 (6.25%) Hadoop
4 6 (5.36%) SQL Server
5 5 (4.46%) Redis
6 2 (1.79%) Data Warehouse
6 2 (1.79%) MySQL
6 2 (1.79%) OLAP
6 2 (1.79%) OLAP Cube
6 2 (1.79%) SQL Server Integration Services
6 2 (1.79%) SQL Server Reporting Services
7 1 (0.89%) Oracle Database
7 1 (0.89%) Relational Database
7 1 (0.89%) SQL Server 2012
Development Applications
1 21 (18.75%) Git (software)
1 21 (18.75%) Maven
2 19 (16.96%) JUnit
3 17 (15.18%) Mockito
4 16 (14.29%) JIRA
5 15 (13.39%) Ant
6 14 (12.50%) Grunt
6 14 (12.50%) gulp
7 13 (11.61%) IntelliJ
8 7 (6.25%) Jenkins
9 6 (5.36%) Atlassian Bamboo
10 4 (3.57%) JProfiler
10 4 (3.57%) VisualVM
10 4 (3.57%) YourKit
11 3 (2.68%) Selenium
12 2 (1.79%) Cucumber
12 2 (1.79%) JMeter
12 2 (1.79%) Team Foundation Server
13 1 (0.89%) Talend Open Studio
13 1 (0.89%) WebDriver
General
1 15 (13.39%) Publishing
2 5 (4.46%) Finance
3 3 (2.68%) Games
4 1 (0.89%) Retail
Job Titles
1 79 (70.54%) Developer
2 43 (38.39%) Java Developer
3 26 (23.21%) AWS Developer
4 21 (18.75%) Agile Developer
5 20 (17.86%) JavaScript Developer
5 20 (17.86%) Node.js Developer
6 16 (14.29%) Java Team Leader
6 16 (14.29%) Team Leader
7 13 (11.61%) AWS Engineer
8 8 (7.14%) JavaScript Engineer
8 8 (7.14%) Lead Developer
9 7 (6.25%) Angular Developer
9 7 (6.25%) Senior Developer
10 6 (5.36%) Agile Java Developer
10 6 (5.36%) Big Data Engineer
10 6 (5.36%) Data Engineer
10 6 (5.36%) Senior Java Developer
10 6 (5.36%) Software Engineer
10 6 (5.36%) Technical Leader
10 6 (5.36%) Test Leader
Libraries, Frameworks & Software Standards
1 48 (42.86%) AngularJS
2 45 (40.18%) CSS
2 45 (40.18%) HTML
3 38 (33.93%) Node.js
4 29 (25.89%) React
4 29 (25.89%) Web Services
5 24 (21.43%) jQuery
6 20 (17.86%) HTML5
7 19 (16.96%) JSON
8 18 (16.07%) Sass
9 17 (15.18%) CSS3
10 14 (12.50%) LESS
10 14 (12.50%) Spring
11 13 (11.61%) Dropwizard
11 13 (11.61%) Hystrix
11 13 (11.61%) Scalatra
12 12 (10.71%) Play Framework
13 10 (8.93%) J2EE
13 10 (8.93%) REST
14 7 (6.25%) XML
Miscellaneous
1 5 (4.46%) Semantic Web
2 4 (3.57%) N-Tier
3 2 (1.79%) Algorithms
3 2 (1.79%) Greenfield Project
3 2 (1.79%) Mobile App
3 2 (1.79%) User Experience
4 1 (0.89%) Computer Science
4 1 (0.89%) Data Structures
4 1 (0.89%) Enterprise Software
4 1 (0.89%) Fintech
4 1 (0.89%) RIA
Operating Systems
1 18 (16.07%) Linux
2 4 (3.57%) Unix
Processes & Methodologies
1 98 (87.50%) Agile Software Development
2 69 (61.61%) BDD
3 55 (49.11%) Scrum
4 47 (41.96%) Kanban
5 45 (40.18%) Continuous Integration
6 41 (36.61%) Pair Programming
6 41 (36.61%) Test Automation
7 38 (33.93%) Unit Testing
8 29 (25.89%) Software Engineering
9 26 (23.21%) Web Development
10 20 (17.86%) API Development
10 20 (17.86%) MVC
11 17 (15.18%) Refactoring
12 16 (14.29%) Configuration Management
13 15 (13.39%) Domain-Driven Design
14 14 (12.50%) Front End Development
14 14 (12.50%) SOA
15 13 (11.61%) Digital Transformation Programme
15 13 (11.61%) Open Source
15 13 (11.61%) SOLID
Programming Languages
1 71 (63.39%) Java
2 59 (52.68%) JavaScript
3 16 (14.29%) PHP
4 13 (11.61%) Groovy
5 11 (9.82%) Scala
6 9 (8.04%) Python
7 8 (7.14%) C#
7 8 (7.14%) SQL
8 4 (3.57%) T-SQL
9 1 (0.89%) C
9 1 (0.89%) TypeScript
Qualifications
1 9 (8.04%) Degree
2 1 (0.89%) Computer Science Degree
Quality Assurance & Compliance
1 22 (19.64%) QA
2 6 (5.36%) Data Quality
3 1 (0.89%) Disclosure Scotland
System Software
1 10 (8.93%) Docker
2 2 (1.79%) Active Directory
2 2 (1.79%) Virtual Machines
2 2 (1.79%) VMware Infrastructure
Systems Management
1 16 (14.29%) Ansible
1 16 (14.29%) Puppet
2 15 (13.39%) Opscode Chef
3 13 (11.61%) Terraform
4 7 (6.25%) Mesos
5 1 (0.89%) Kubernetes
Vendors
1 14 (12.50%) New Relic
2 5 (4.46%) Microsoft
3 4 (3.57%) Infor
4 2 (1.79%) Atlassian
4 2 (1.79%) Oracle
4 2 (1.79%) Twitter
4 2 (1.79%) VMware
5 1 (0.89%) Capita
5 1 (0.89%) HP
5 1 (0.89%) Splunk
5 1 (0.89%) Talend
5 1 (0.89%) Zend