Period
to

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 17 August 2022 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
17 Aug 2022
Same period 2021 Same period 2020
Rank 67 48 25
Rank change year-on-year -19 -23 -5
Contract jobs citing TDD 77 100 98
As % of all contract jobs advertised in the East of England 3.08% 4.43% 6.44%
As % of the Processes & Methodologies category 3.47% 4.95% 7.49%
Number of daily rates quoted 40 64 74
10th Percentile £459 £324 £388
25th Percentile £541 £413 £425
Median daily rate (50th Percentile) £631 £503 £485
Median % change year-on-year +25.47% +3.61% +7.78%
75th Percentile £654 £550 £536
90th Percentile £700 £586 £559
England median daily rate £600 £550 £525
% change year-on-year +9.09% +4.76% -
Number of hourly rates quoted 11 2 1
10th Percentile £65.00 £46.78 -
25th Percentile £67.50 £49.45 £48.06
Median hourly rate £70.50 £53.90 £48.12
Median % change year-on-year +30.81% +12.01% -
75th Percentile £73.70 £58.34 £48.17
90th Percentile £76.64 £61.01 -
England median hourly rate £70.50 £65.50 £62.00
% change year-on-year +7.63% +5.65% +47.62%

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 2,220 2,019 1,309
As % of all contract IT jobs advertised in the East of England 88.76% 89.53% 86.06%
Number of daily rates quoted 1,380 1,149 803
10th Percentile £205 £156 £225
25th Percentile £363 £288 £331
Median daily rate (50th Percentile) £488 £425 £445
Median % change year-on-year +14.71% -4.49% -1.11%
75th Percentile £600 £538 £525
90th Percentile £675 £613 £600
England median daily rate £550 £500 £488
% change year-on-year +10.00% +2.56% +2.63%
Number of hourly rates quoted 390 300 85
10th Percentile £13.25 £12.25 £13.00
25th Percentile £14.25 £12.50 £14.50
Median hourly rate £20.50 £13.75 £22.00
Median % change year-on-year +49.09% -37.50% +29.41%
75th Percentile £52.50 £24.53 £47.25
90th Percentile £64.10 £50.00 £57.50
England median hourly rate £26.98 £20.78 £22.50
% change year-on-year +29.87% -7.67% +6.98%

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 17 August 2022.

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 17 August 2022. 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
Jobs
Hertfordshire -3 22 - - 22
Essex -15 22 £629 +20.87% 4
Cambridgeshire +3 20 £640 +34.74% 10
Suffolk -8 7 £640 +82.86% 3
Bedfordshire -8 5 £667 - 2
TDD
England

For the 6 months to 17 August 2022, 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 54 (70.13%) Agile
2 38 (49.35%) CI/CD
3 31 (40.26%) Java
3 31 (40.26%) C#
4 30 (38.96%) Microsoft
4 30 (38.96%) Unit Testing
5 27 (35.06%) Social Skills
6 26 (33.77%) Linux
7 25 (32.47%) Software Engineering
8 24 (31.17%) Continuous Integration
9 23 (29.87%) Presentation Skills
10 22 (28.57%) Scrum
10 22 (28.57%) C++
10 22 (28.57%) Visualisation
11 20 (25.97%) TypeScript
12 18 (23.38%) DevOps
12 18 (23.38%) Continuous Delivery
12 18 (23.38%) Security Cleared
12 18 (23.38%) Validation
12 18 (23.38%) Eclipse
13 17 (22.08%) Visual Studio
13 17 (22.08%) Windows
13 17 (22.08%) Ethernet
13 17 (22.08%) TCP/IP
13 17 (22.08%) Synthetic Environment
13 17 (22.08%) Verification and Validation
14 16 (20.78%) Python
14 16 (20.78%) JavaScript
14 16 (20.78%) SC Cleared
14 16 (20.78%) Pair Programming

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 4 (5.19%) Confluence
2 3 (3.90%) Apache
2 3 (3.90%) Apache Airflow
2 3 (3.90%) Apache Spark
3 2 (2.60%) Cloud Foundry
3 2 (2.60%) nginx
4 1 (1.30%) Adobe Experience Manager
Cloud Services
1 9 (11.69%) AWS
2 8 (10.39%) GCP
3 7 (9.09%) Amazon ECS
3 7 (9.09%) Amazon EKS
4 6 (7.79%) Azure
4 6 (7.79%) Azure DevOps
4 6 (7.79%) Google Kubernetes Engine
5 3 (3.90%) Amazon Kinesis
5 3 (3.90%) Amazon SageMaker
5 3 (3.90%) Power Platform
6 2 (2.60%) GitHub
7 1 (1.30%) npm
Communications & Networking
1 17 (22.08%) Ethernet
1 17 (22.08%) TCP/IP
2 6 (7.79%) 4G
2 6 (7.79%) LTE
3 5 (6.49%) Modbus
3 5 (6.49%) RS-422
3 5 (6.49%) RS-485
Database & Business Intelligence
1 8 (10.39%) Elasticsearch
1 8 (10.39%) PostgreSQL
2 4 (5.19%) SQL Server
3 3 (3.90%) Apache Arrow
3 3 (3.90%) Apache Hive
3 3 (3.90%) Big Data
3 3 (3.90%) Data Lake
3 3 (3.90%) Flink
3 3 (3.90%) Looker
3 3 (3.90%) OLTP
3 3 (3.90%) Power BI
3 3 (3.90%) Tableau
4 1 (1.30%) MySQL
4 1 (1.30%) Oracle Database
Development Applications
1 18 (23.38%) Eclipse
2 17 (22.08%) Visual Studio
3 9 (11.69%) Jenkins
4 8 (10.39%) GitLab
5 7 (9.09%) Team Foundation Server
6 6 (7.79%) Visual Studio Team System
7 5 (6.49%) Artifactory
7 5 (6.49%) Git (software)
8 4 (5.19%) JIRA
8 4 (5.19%) JUnit
9 3 (3.90%) JMeter
9 3 (3.90%) MLflow
9 3 (3.90%) Postman
9 3 (3.90%) RStudio
10 2 (2.60%) Bitbucket
10 2 (2.60%) IntelliJ
10 2 (2.60%) Selenium
10 2 (2.60%) TestComplete
10 2 (2.60%) TestRail
10 2 (2.60%) Xcode
General
1 27 (35.06%) Social Skills
2 23 (29.87%) Presentation Skills
3 7 (9.09%) Finance
4 5 (6.49%) Electronics
5 4 (5.19%) Marketing
6 2 (2.60%) Public Sector
6 2 (2.60%) Publishing
7 1 (1.30%) Analytical Skills
7 1 (1.30%) Law
7 1 (1.30%) Manufacturing
Job Titles
1 32 (41.56%) Developer
2 23 (29.87%) Software Engineer
3 21 (27.27%) C++ Software Engineer
4 16 (20.78%) C# Software Engineer
5 8 (10.39%) Angular Developer
5 8 (10.39%) Front End Developer (Client-Side Developer)
5 8 (10.39%) Java Developer
6 6 (7.79%) Python Engineer
7 5 (6.49%) .NET Developer
7 5 (6.49%) C Software Engineer
7 5 (6.49%) C/C++ Software Engineer
7 5 (6.49%) JavaScript Developer
7 5 (6.49%) Platform Engineer
8 4 (5.19%) Cloud Engineer
8 4 (5.19%) GCP Engineer
9 3 (3.90%) Azure Developer
9 3 (3.90%) C# .NET Developer
9 3 (3.90%) DevOps Engineer
9 3 (3.90%) Full Stack Developer
9 3 (3.90%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 16 (20.78%) AngularJS
2 12 (15.58%) React
3 11 (14.29%) .NET
3 11 (14.29%) Spring
4 10 (12.99%) Django
4 10 (12.99%) Flask
4 10 (12.99%) Kafka
4 10 (12.99%) RESTful
5 9 (11.69%) CSS
6 8 (10.39%) Spring Boot
7 7 (9.09%) ASP.NET
7 7 (9.09%) FastAPI
7 7 (9.09%) HTML
7 7 (9.09%) RabbitMQ
7 7 (9.09%) SAML
8 6 (7.79%) GraphQL
8 6 (7.79%) OAuth
8 6 (7.79%) OAuth2
8 6 (7.79%) OpenID
9 5 (6.49%) jQuery
Miscellaneous
1 6 (7.79%) IoT
2 4 (5.19%) User Experience
3 2 (2.60%) Over-the-Top Content
4 1 (1.30%) Data Protection Act
4 1 (1.30%) Greenfield Project
4 1 (1.30%) Hybrid Cloud
4 1 (1.30%) Legacy Applications
4 1 (1.30%) Mobile App
4 1 (1.30%) N-Tier
Operating Systems
1 26 (33.77%) Linux
2 17 (22.08%) Windows
3 3 (3.90%) Apple iOS
4 2 (2.60%) Android
4 2 (2.60%) tvOS
5 1 (1.30%) Tizen
5 1 (1.30%) webOS
Processes & Methodologies
1 54 (70.13%) Agile
2 38 (49.35%) CI/CD
3 30 (38.96%) Unit Testing
4 25 (32.47%) Software Engineering
5 24 (31.17%) Continuous Integration
6 22 (28.57%) Scrum
6 22 (28.57%) Visualisation
7 18 (23.38%) Continuous Delivery
7 18 (23.38%) DevOps
7 18 (23.38%) Validation
8 17 (22.08%) Synthetic Environment
8 17 (22.08%) Verification and Validation
9 16 (20.78%) Pair Programming
10 10 (12.99%) BDD
11 9 (11.69%) Domain-Driven Design
11 9 (11.69%) OO
11 9 (11.69%) Web Development
12 8 (10.39%) Microservices
12 8 (10.39%) Software Testing
12 8 (10.39%) Test Automation
Programming Languages
1 31 (40.26%) C#
1 31 (40.26%) Java
2 22 (28.57%) C++
3 20 (25.97%) TypeScript
4 16 (20.78%) JavaScript
4 16 (20.78%) Python
5 6 (7.79%) Go
5 6 (7.79%) Kotlin
5 6 (7.79%) SQL
6 5 (6.49%) C
6 5 (6.49%) Groovy
7 3 (3.90%) R
7 3 (3.90%) T-SQL
8 2 (2.60%) Apple Swift
8 2 (2.60%) Objective-C
9 1 (1.30%) Bash
9 1 (1.30%) ES6
Qualifications
1 18 (23.38%) Security Cleared
2 16 (20.78%) SC Cleared
3 2 (2.60%) DV Cleared
4 1 (1.30%) Degree
Quality Assurance & Compliance
1 3 (3.90%) GDPR
1 3 (3.90%) QA
System Software
1 11 (14.29%) Docker
2 1 (1.30%) zsh
Systems Management
1 13 (16.88%) Terraform
2 9 (11.69%) Kubernetes
3 7 (9.09%) Ansible
4 6 (7.79%) MIIS
5 5 (6.49%) Docker Swarm
6 3 (3.90%) Control-M
7 1 (1.30%) Active Directory Federation Services
Vendors
1 30 (38.96%) Microsoft
2 10 (12.99%) Google
3 4 (5.19%) Oracle
4 3 (3.90%) MapR
5 2 (2.60%) Apple
6 1 (1.30%) Adobe
6 1 (1.30%) Atlassian
6 1 (1.30%) CA
6 1 (1.30%) CA Agile Central
6 1 (1.30%) IBM