Period
to 21 November 2017

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

Test-Driven Development (TDD)
South East > Buckinghamshire
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 13 65 65
Rank change year-on-year +52 0 -10
Contract jobs citing TDD 223 51 75
As % of all contract IT jobs advertised in Buckinghamshire 9.39% 2.93% 2.84%
As % of the Processes & Methodologies category 11.51% 3.47% 3.52%
Number of daily rates quoted 114 19 46
Buckinghamshire median daily rate £388 £388 £425
Median daily rate % change year-on-year - -8.82% -
10th Percentile £325 £310 £319
90th Percentile £525 £510 £475
South East median daily rate £425 £438 £400
% change year-on-year -2.86% +9.38% +6.67%
Number of hourly rates quoted 0 0 0
Buckinghamshire median hourly rate - - -
South East median hourly rate £45.00 £36.50 £50.00
% change year-on-year +23.29% -27.00% +25.00%

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 Buckinghamshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Buckinghamshire
Contract vacancies with a requirement for process or methodology skills 1937 1468 2129
As % of all contract IT jobs advertised in Buckinghamshire 81.59% 84.22% 80.67%
Number of daily rates quoted 908 801 1120
Buckinghamshire median daily rate £400 £408 £375
Median daily rate % change year-on-year -1.84% +8.67% +7.14%
10th Percentile £252 £235 £238
90th Percentile £538 £550 £510
South East median daily rate £425 £400 £390
% change year-on-year +6.25% +2.56% +4.00%
Number of hourly rates quoted 95 59 61
Buckinghamshire median hourly rate £16.50 £15.00 £16.25
Median hourly rate % change year-on-year +10.00% -7.69% +27.45%
10th Percentile £9.58 £9.31 £9.50
90th Percentile £48.75 £47.30 £45.00
South East median hourly rate £22.75 £27.13 £26.50
% change year-on-year -16.13% +2.36% +51.43%

TDD
Job Vacancy Trend in Buckinghamshire

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

Job vacancy trend for TDD in Buckinghamshire

TDD
Contractor Daily Rate Trend in Buckinghamshire

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

Contractor daily rate trend for TDD in Buckinghamshire

TDD
Contractor Daily Rate Histogram in Buckinghamshire

The daily rate distribution of IT jobs citing TDD in Buckinghamshire over the 6 months to 21 November 2017.

Contractor daily rate histogram for TDD in Buckinghamshire

TDD
Contract Job Locations in Buckinghamshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Buckinghamshire region over the 6 months to 21 November 2017. 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
Milton Keynes +30 172 £388 - 10
High Wycombe - 7 £363 - 1
Aylesbury - 7 £519 -
Buckingham - 3 - -
Gerrards Cross - 1 £325 -
TDD
South East

For the 6 months to 21 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 Buckinghamshire region with a requirement for TDD.

1 161 (72.20%) Agile Software Development
2 140 (62.78%) Java
3 91 (40.81%) Jenkins
4 88 (39.46%) Continuous Integration
5 82 (36.77%) Banking
6 72 (32.29%) Finance
7 71 (31.84%) Git (software)
8 70 (31.39%) Scrum
9 57 (25.56%) Microservices
10 56 (25.11%) Spring
11 55 (24.66%) Ruby
11 55 (24.66%) BDD
12 52 (23.32%) Test Automation
13 50 (22.42%) JavaScript
13 50 (22.42%) Continuous Delivery
14 48 (21.52%) Node.js
15 46 (20.63%) AngularJS
15 46 (20.63%) Spring Boot
16 42 (18.83%) RESTful
16 42 (18.83%) SQL
17 41 (18.39%) JIRA
17 41 (18.39%) REST
18 39 (17.49%) Kanban
19 38 (17.04%) MVC
20 35 (15.70%) Big Data
21 33 (14.80%) C#
22 32 (14.35%) Hadoop
23 30 (13.45%) QA
23 30 (13.45%) SOAP
24 29 (13.00%) DevOps

TDD
Co-occurring IT Skills in Buckinghamshire 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 25 (11.21%) Cloud Foundry
2 18 (8.07%) Apache Spark
3 16 (7.17%) Confluence
4 9 (4.04%) CMS
5 7 (3.14%) EPiServer
6 6 (2.69%) Drupal
7 4 (1.79%) Apache Pig
7 4 (1.79%) NServiceBus
8 2 (0.90%) Alfresco
8 2 (0.90%) JBoss
8 2 (0.90%) Liferay
8 2 (0.90%) Oracle SOA Suite
8 2 (0.90%) SharePoint
8 2 (0.90%) Tomcat
9 1 (0.45%) IIS
Cloud Services
1 24 (10.76%) Amazon AWS
1 24 (10.76%) OpenShift
2 20 (8.97%) Microsoft Azure
3 13 (5.83%) PaaS
4 10 (4.48%) Google Cloud Platform
5 8 (3.59%) Sauce Labs
6 7 (3.14%) BlazeMeter
7 5 (2.24%) npm
8 4 (1.79%) Slack
9 2 (0.90%) Cloud Computing
10 1 (0.45%) Amazon EC2
10 1 (0.45%) Amazon S3
10 1 (0.45%) Amazon SQS
10 1 (0.45%) AWS Lambda
10 1 (0.45%) Serverless
Communications & Networking
1 15 (6.73%) Internet
2 1 (0.45%) AMQP
2 1 (0.45%) Extranet
2 1 (0.45%) Firewall
2 1 (0.45%) Intranet
2 1 (0.45%) Wi-Fi
Database & Business Intelligence
1 35 (15.70%) Big Data
2 32 (14.35%) Hadoop
3 19 (8.52%) NoSQL
4 15 (6.73%) SQL Server
5 12 (5.38%) MongoDB
6 10 (4.48%) Redis
7 6 (2.69%) MySQL
7 6 (2.69%) SQL Server Integration Services
7 6 (2.69%) SQL Server Reporting Services
8 4 (1.79%) Amazon DynamoDB
8 4 (1.79%) Apache Hive
9 3 (1.35%) Oracle Database
9 3 (1.35%) Spark SQL
10 2 (0.90%) DataStax
10 2 (0.90%) DB2
10 2 (0.90%) PostgreSQL
10 2 (0.90%) Relational Database
11 1 (0.45%) Apache Cassandra
11 1 (0.45%) SQL Server 2008
11 1 (0.45%) SQL Server 2012
Development Applications
1 91 (40.81%) Jenkins
2 71 (31.84%) Git (software)
3 41 (18.39%) JIRA
4 23 (10.31%) Selenium
5 20 (8.97%) Cucumber
6 17 (7.62%) GitLab
7 14 (6.28%) Protractor
8 13 (5.83%) Mocha
8 13 (5.83%) WebDriver
9 12 (5.38%) Appium
9 12 (5.38%) Karma Test Runner
9 12 (5.38%) Maven
10 11 (4.93%) Atlassian Bamboo
10 11 (4.93%) Bitbucket
10 11 (4.93%) Octopus Deploy
10 11 (4.93%) TeamCity
11 10 (4.48%) Visual Studio
12 9 (4.04%) Team Foundation Server
13 8 (3.59%) JMeter
13 8 (3.59%) JUnit
General
1 82 (36.77%) Banking
2 72 (32.29%) Finance
3 18 (8.07%) Retail Banking
4 11 (4.93%) Telecoms
5 10 (4.48%) Automotive
5 10 (4.48%) Retail
6 7 (3.14%) Corporate Banking
7 2 (0.90%) Spanish Language
8 1 (0.45%) Marketing
8 1 (0.45%) Wholesale Banking
Job Titles
1 151 (67.71%) Developer
2 63 (28.25%) Java Developer
3 34 (15.25%) Full Stack Developer
4 21 (9.42%) Senior Developer
4 21 (9.42%) Tester
5 20 (8.97%) Automation Tester
6 17 (7.62%) Node.js Developer
7 16 (7.17%) .NET Developer
7 16 (7.17%) Architect
7 16 (7.17%) Java Engineer
7 16 (7.17%) Test Architect
8 15 (6.73%) Angular Developer
8 15 (6.73%) C# Developer
8 15 (6.73%) Senior Java Developer
9 14 (6.28%) Senior Java Engineer
10 12 (5.38%) Agile Developer
10 12 (5.38%) C# .NET Developer
11 11 (4.93%) QA Automation Tester
11 11 (4.93%) QA Tester
11 11 (4.93%) SQL Developer
Libraries, Frameworks & Software Standards
1 56 (25.11%) Spring
2 48 (21.52%) Node.js
3 46 (20.63%) AngularJS
3 46 (20.63%) Spring Boot
4 42 (18.83%) RESTful
5 41 (18.39%) REST
6 30 (13.45%) SOAP
7 27 (12.11%) Web Services
8 24 (10.76%) HTML
9 22 (9.87%) .NET
10 20 (8.97%) CSS
11 19 (8.52%) JSON
12 15 (6.73%) Spring MVC
13 13 (5.83%) ASP.NET Web API
13 13 (5.83%) Swagger
13 13 (5.83%) XML
14 12 (5.38%) CSS3
14 12 (5.38%) WCF
15 11 (4.93%) ASP.NET
15 11 (4.93%) OAuth
Miscellaneous
1 16 (7.17%) Mobile App
2 7 (3.14%) Enterprise Software
3 6 (2.69%) Mobile Banking
4 3 (1.35%) Enterprise Cloud
4 3 (1.35%) Greenfield Project
5 2 (0.90%) Analytical Skills
5 2 (0.90%) Computer Science
6 1 (0.45%) Cloud Native
6 1 (0.45%) Digital Media
6 1 (0.45%) Distributed Denial-of-Service
6 1 (0.45%) Fintech
6 1 (0.45%) Graphic Design
6 1 (0.45%) Robotics
6 1 (0.45%) User Experience
Operating Systems
1 18 (8.07%) Android
1 18 (8.07%) Apple iOS
2 13 (5.83%) Windows
3 10 (4.48%) Mac OS X
4 7 (3.14%) Linux
5 2 (0.90%) Red Hat Enterprise Linux
Processes & Methodologies
1 161 (72.20%) Agile Software Development
2 88 (39.46%) Continuous Integration
3 70 (31.39%) Scrum
4 57 (25.56%) Microservices
5 55 (24.66%) BDD
6 52 (23.32%) Test Automation
7 50 (22.42%) Continuous Delivery
8 39 (17.49%) Kanban
9 38 (17.04%) MVC
10 29 (13.00%) DevOps
11 28 (12.56%) API Development
12 26 (11.66%) Test-First Development
13 24 (10.76%) SOLID
14 22 (9.87%) E-Commerce
15 19 (8.52%) Open Source
15 19 (8.52%) SDLC
15 19 (8.52%) Workflow
16 17 (7.62%) Pair Programming
17 16 (7.17%) SOA
18 15 (6.73%) Performance Testing
Programming Languages
1 140 (62.78%) Java
2 55 (24.66%) Ruby
3 50 (22.42%) JavaScript
4 42 (18.83%) SQL
5 33 (14.80%) C#
6 25 (11.21%) Go
7 18 (8.07%) Apple Swift
8 8 (3.59%) Objective-C
8 8 (3.59%) Python
9 6 (2.69%) C
10 5 (2.24%) Scala
11 4 (1.79%) HiveQL
11 4 (1.79%) PHP
12 3 (1.35%) C++
13 2 (0.90%) Groovy
13 2 (0.90%) Perl
13 2 (0.90%) VB
13 2 (0.90%) VB.NET
14 1 (0.45%) PL/SQL
14 1 (0.45%) R
Qualifications
1 2 (0.90%) Degree
2 1 (0.45%) CEH
2 1 (0.45%) DV Cleared
2 1 (0.45%) MCPD
2 1 (0.45%) Microsoft Certification
2 1 (0.45%) Security Cleared
Quality Assurance & Compliance
1 30 (13.45%) QA
2 11 (4.93%) GDPR
3 1 (0.45%) FATCA
System Software
1 17 (7.62%) Docker
2 4 (1.79%) Apache Flume
Systems Management
1 19 (8.52%) Ansible
2 7 (3.14%) Oozie
3 3 (1.35%) HP Quality Center
4 2 (0.90%) Ambari
4 2 (0.90%) Kubernetes
4 2 (0.90%) Puppet
4 2 (0.90%) Terraform
Vendors
1 17 (7.62%) IBM
2 16 (7.17%) Cloudera
3 12 (5.38%) Google
4 10 (4.48%) Oracle
5 9 (4.04%) Microsoft
6 7 (3.14%) Apigee
6 7 (3.14%) MuleSoft
6 7 (3.14%) WSO2
7 4 (1.79%) MapR
8 3 (1.35%) Apple
8 3 (1.35%) HP
9 2 (0.90%) Blue Prism
9 2 (0.90%) OpenText
9 2 (0.90%) Red Hat
10 1 (0.45%) Adobe
10 1 (0.45%) Atlassian
10 1 (0.45%) Salesforce.com