Period
to 13 July 2020

The following table provides summary statistics for contract job vacancies advertised in the East of England 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 13 July 2020 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)
England > East of England
6 months to
13 Jul 2020
Same period 2019 Same period 2018
Rank 26 17 20
Rank change year-on-year -9 +3 -11
Contract jobs citing TDD 124 310 331
As % of all contract jobs advertised in the East of England 6.35% 7.20% 6.97%
As % of the Processes & Methodologies category 7.72% 8.46% 8.15%
Number of daily rates quoted 97 193 261
Median daily rate £480 £475 £513
Median daily rate % change year-on-year +1.05% -7.32% +3.74%
10th Percentile £363 £363 £368
90th Percentile £550 £550 £588
England median daily rate £525 £525 £500
% change year-on-year - +5.00% +5.26%
Number of hourly rates quoted 1 2 7
Median hourly rate £48.12 £48.65 £55.00
Median hourly rate % change year-on-year -1.10% -11.55% +37.50%
10th Percentile £48.06 £37.64 £34.95
90th Percentile £48.17 £60.37 £75.00
England median hourly rate £59.75 £35.00 £45.00
% change year-on-year +70.71% -22.22% +9.76%

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 the East of England with a requirement for process or methodology skills.

All Process and Methodology Skills
East of England
Contract vacancies with a requirement for process or methodology skills 1,607 3,664 4,059
As % of all contract IT jobs advertised in the East of England 82.33% 85.05% 85.42%
Number of daily rates quoted 961 2,125 2,300
Median daily rate £450 £450 £425
Median daily rate % change year-on-year - +5.88% -
10th Percentile £253 £280 £238
90th Percentile £600 £600 £588
England median daily rate £481 £475 £463
% change year-on-year +1.21% +2.70% +2.78%
Number of hourly rates quoted 87 201 255
Median hourly rate £22.82 £17.50 £17.50
Median hourly rate % change year-on-year +30.40% - -44.00%
10th Percentile £13.00 £10.75 £11.30
90th Percentile £59.30 £50.00 £47.95
Median hourly rate £31.94 £25.00 £22.00
% change year-on-year +27.76% +13.64% -12.00%

TDD
Job Vacancy Trend in the East of England

Job postings citing TDD as a proportion of all IT jobs advertised in the East of England.

Job vacancy trend for TDD in the East of England

TDD
Contractor Daily Rate Trend in the East of England

3-month moving average daily rate quoted in jobs citing TDD in the East of England.

Daily rate trend for TDD in the East of England

TDD
Daily Rate Histogram in the East of England

Daily rate distribution for jobs citing TDD in the East of England over the 6 months to 13 July 2020.

Daily rate histogram for TDD in the East of England

TDD
Contractor Hourly Rate Trend in the East of England

3-month moving average hourly rates quoted in jobs citing TDD in the East of England.

Hourly rate trend for TDD in the East of England

TDD
Contract Job Locations in the East of England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the East of England region over the 6 months to 13 July 2020. 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
Essex -10 57 £485 -7.62% 4
Cambridgeshire +21 28 £500 +19.05% 9
Hertfordshire +17 21 £488 +8.39% 14
Suffolk +11 17 £400 -3.03% 3
Bedfordshire +19 1 - - 4
TDD
England

For the 6 months to 13 July 2020, 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 East of England region with a requirement for TDD.

1 89 (71.77%) Agile Software Development
2 56 (45.16%) Java
2 56 (45.16%) BDD
3 52 (41.94%) Microservices
4 48 (38.71%) Scrum
5 39 (31.45%) AWS
6 38 (30.65%) Kanban
6 38 (30.65%) .NET
7 36 (29.03%) Spring
8 33 (26.61%) Test Automation
9 31 (25.00%) JIRA
9 31 (25.00%) Spring Boot
10 30 (24.19%) Oracle
11 27 (21.77%) Confluence
12 25 (20.16%) User Stories
13 24 (19.35%) Java 8
13 24 (19.35%) C#
13 24 (19.35%) ASP.NET
13 24 (19.35%) Web Services
14 23 (18.55%) JavaScript
14 23 (18.55%) SoapUI
14 23 (18.55%) Continuous Integration
15 22 (17.74%) MySQL
15 22 (17.74%) SOAP
15 22 (17.74%) Pair Programming
15 22 (17.74%) Docker
16 20 (16.13%) J2SE
17 19 (15.32%) Selenium
17 19 (15.32%) AngularJS
18 18 (14.52%) DevOps

TDD
Co-occurring IT Skills in the East of England 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 27 (21.77%) Confluence
2 7 (5.65%) Oracle SOA Suite
3 5 (4.03%) Mule
3 5 (4.03%) Oracle Service Bus
3 5 (4.03%) Red Hat Fuse
4 4 (3.23%) Elasticsearch
5 3 (2.42%) Apache
5 3 (2.42%) nginx
6 2 (1.61%) IIS
6 2 (1.61%) JBoss
6 2 (1.61%) SharePoint
6 2 (1.61%) WebLogic
7 1 (0.81%) CMS
7 1 (0.81%) Sitecore CMS
Applications
1 1 (0.81%) Microsoft Office
Business Applications
1 1 (0.81%) Magento
Cloud Services
1 39 (31.45%) AWS
2 15 (12.10%) Azure
3 7 (5.65%) Serverless
4 6 (4.84%) npm
5 5 (4.03%) AWS Lambda
6 3 (2.42%) Loggly
7 2 (1.61%) GitHub
7 2 (1.61%) SaaS
8 1 (0.81%) Azure Functions
8 1 (0.81%) Cloud Computing
8 1 (0.81%) GCP
8 1 (0.81%) Logic Apps
Communications & Networking
1 6 (4.84%) HTTP
2 4 (3.23%) SSL
2 4 (3.23%) TCP/IP
3 2 (1.61%) SMS
4 1 (0.81%) Broadband
4 1 (0.81%) DNS
4 1 (0.81%) FTP
Database & Business Intelligence
1 22 (17.74%) MySQL
2 13 (10.48%) SQL Server
3 12 (9.68%) Oracle Database
4 5 (4.03%) Amazon DynamoDB
4 5 (4.03%) Relational Database
5 4 (3.23%) PostgreSQL
6 3 (2.42%) BigQuery
6 3 (2.42%) MongoDB
7 2 (1.61%) Crystal Reports
7 2 (1.61%) NoSQL
7 2 (1.61%) SQL Server 2000
7 2 (1.61%) SQL Server 2012
7 2 (1.61%) SQL Server Reporting Services
8 1 (0.81%) Apache Cassandra
8 1 (0.81%) Cosmos DB
8 1 (0.81%) Oracle Database 12c
8 1 (0.81%) Oracle Reports
8 1 (0.81%) Redis
Development Applications
1 31 (25.00%) JIRA
2 23 (18.55%) SoapUI
3 19 (15.32%) Selenium
4 18 (14.52%) Git (software)
5 13 (10.48%) Checkstyle
6 11 (8.87%) Cucumber
6 11 (8.87%) Jenkins
6 11 (8.87%) Maven
7 8 (6.45%) REST Assured
8 7 (5.65%) Zephyr
9 6 (4.84%) JMeter
9 6 (4.84%) Visual Studio Code
10 5 (4.03%) Subversion
11 3 (2.42%) Eclipse
11 3 (2.42%) Jasmine
11 3 (2.42%) JUnit
11 3 (2.42%) Mocha
11 3 (2.42%) Travis CI
11 3 (2.42%) Vagrant
11 3 (2.42%) webpack
General
1 14 (11.29%) Public Sector
2 7 (5.65%) Finance
3 6 (4.84%) Electronics
3 6 (4.84%) Manufacturing
3 6 (4.84%) Marketing
3 6 (4.84%) Telecoms
4 3 (2.42%) Retail
5 1 (0.81%) Law
5 1 (0.81%) Publishing
Job Titles
1 78 (62.90%) Developer
2 31 (25.00%) .NET Developer
3 29 (23.39%) Java Developer
4 13 (10.48%) C# Developer
4 13 (10.48%) Tester
5 12 (9.68%) Angular Developer
6 11 (8.87%) Senior Developer
7 9 (7.26%) C# .NET Developer
7 9 (7.26%) Senior Java Developer
8 8 (6.45%) Front End Developer (Client-Side Developer)
8 8 (6.45%) Node.js Developer
9 7 (5.65%) QA Tester
10 6 (4.84%) Senior QA Tester
10 6 (4.84%) Senior Tester
10 6 (4.84%) Test Engineer
11 5 (4.03%) Analyst
11 5 (4.03%) Integration Developer
11 5 (4.03%) Senior Integration Developer
11 5 (4.03%) Software Engineer
11 5 (4.03%) Test Automation Engineer
Libraries, Frameworks & Software Standards
1 38 (30.65%) .NET
2 36 (29.03%) Spring
3 31 (25.00%) Spring Boot
4 24 (19.35%) ASP.NET
4 24 (19.35%) Web Services
5 22 (17.74%) SOAP
6 20 (16.13%) J2SE
7 19 (15.32%) AngularJS
8 18 (14.52%) Node.js
9 16 (12.90%) CSS
10 15 (12.10%) HTML
10 15 (12.10%) RESTful
11 14 (11.29%) XML
12 13 (10.48%) J2EE
13 12 (9.68%) .NET Framework
14 11 (8.87%) ASP.NET Web API
15 9 (7.26%) Middleware
15 9 (7.26%) REST
16 8 (6.45%) .NET Core
16 8 (6.45%) JSON
Miscellaneous
1 16 (12.90%) Greenfield Project
2 15 (12.10%) Hybrid Cloud
3 13 (10.48%) Enterprise Software
4 4 (3.23%) User Experience
5 2 (1.61%) Mobile App
5 2 (1.61%) N-Tier
6 1 (0.81%) Algorithms
6 1 (0.81%) Client/Server
6 1 (0.81%) Clustering
6 1 (0.81%) FMCG
6 1 (0.81%) Mainframe
6 1 (0.81%) Self-Motivation
6 1 (0.81%) Vector Graphics
6 1 (0.81%) Virtual Team
6 1 (0.81%) W3C
Operating Systems
1 15 (12.10%) Linux
2 9 (7.26%) Unix
3 4 (3.23%) Android
4 2 (1.61%) Apple iOS
4 2 (1.61%) Mac OS X
4 2 (1.61%) Windows
5 1 (0.81%) CentOS
5 1 (0.81%) Mac OS
5 1 (0.81%) Red Hat Enterprise Linux
5 1 (0.81%) Ubuntu
Processes & Methodologies
1 89 (71.77%) Agile Software Development
2 56 (45.16%) BDD
3 52 (41.94%) Microservices
4 48 (38.71%) Scrum
5 38 (30.65%) Kanban
6 33 (26.61%) Test Automation
7 25 (20.16%) User Stories
8 23 (18.55%) Continuous Integration
9 22 (17.74%) Pair Programming
10 18 (14.52%) DevOps
11 17 (13.71%) Scaled Agile Framework
12 15 (12.10%) Product Backlog
12 15 (12.10%) Software Engineering
13 14 (11.29%) Integration Testing
13 14 (11.29%) Problem-Solving
13 14 (11.29%) Product Roadmap
13 14 (11.29%) SOA
14 13 (10.48%) API Testing
14 13 (10.48%) SOLID
15 10 (8.06%) Test Strategy
Programming Languages
1 56 (45.16%) Java
2 24 (19.35%) C#
2 24 (19.35%) Java 8
3 23 (18.55%) JavaScript
4 17 (13.71%) SQL
5 11 (8.87%) TypeScript
6 8 (6.45%) Perl
7 5 (4.03%) XPath
8 4 (3.23%) C
8 4 (3.23%) Python
9 3 (2.42%) C++
9 3 (2.42%) PHP
9 3 (2.42%) PowerShell
9 3 (2.42%) Ruby
9 3 (2.42%) VB
10 2 (1.61%) T-SQL
10 2 (1.61%) VB.NET
10 2 (1.61%) VB6
11 1 (0.81%) Bash Shell
11 1 (0.81%) Shell Script
Qualifications
1 7 (5.65%) OCPJP
1 7 (5.65%) SC Cleared
1 7 (5.65%) Security Cleared
1 7 (5.65%) Sun Certification
2 6 (4.84%) BPSS Clearance
3 5 (4.03%) ISEB
3 5 (4.03%) ISTQB
3 5 (4.03%) ISTQB Foundation Certification
4 4 (3.23%) Degree
5 3 (2.42%) OCP
5 3 (2.42%) Oracle Certification
Quality Assurance & Compliance
1 13 (10.48%) QA
2 6 (4.84%) GDPR
3 2 (1.61%) Data Quality
System Software
1 22 (17.74%) Docker
2 1 (0.81%) Firmware
2 1 (0.81%) Virtual Machines
Systems Management
1 11 (8.87%) Terraform
2 7 (5.65%) Kubernetes
3 6 (4.84%) Ansible
4 3 (2.42%) Opscode Chef
4 3 (2.42%) Puppet
5 1 (0.81%) Docker Swarm
5 1 (0.81%) HP ALM
5 1 (0.81%) Single Sign-On
Vendors
1 30 (24.19%) Oracle
2 8 (6.45%) WSO2
3 7 (5.65%) Sun
4 6 (4.84%) Microsoft
4 6 (4.84%) SAP
5 5 (4.03%) Talend
6 3 (2.42%) New Relic
7 2 (1.61%) AppDynamics
7 2 (1.61%) Progress
8 1 (0.81%) Atlassian
8 1 (0.81%) BEA
8 1 (0.81%) HP
8 1 (0.81%) Sitecore
8 1 (0.81%) Xamarin
8 1 (0.81%) Xilinx