Period
to 24 October 2021

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 24 October 2021 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
24 Oct 2021
Same period 2020 Same period 2019
Rank 38 35 36
Rank change year-on-year -3 +1 -13
Contract jobs citing TDD 123 55 224
As % of all contract jobs advertised in the East of England 4.98% 4.49% 5.63%
As % of the Processes & Methodologies category 5.99% 5.31% 6.62%
Number of daily rates quoted 84 44 158
10th Percentile £363 £388 £363
25th Percentile £445 £413 £413
Median daily rate (50th Percentile) £520 £474 £450
Median % change year-on-year +9.76% +5.28% -14.29%
75th Percentile £580 £519 £525
90th Percentile £600 £559 £550
England median daily rate £550 £525 £525
% change year-on-year +4.76% - +5.00%
Number of hourly rates quoted 2 1 0
Median hourly rate £67.40 £48.12 -
Median % change year-on-year +40.07% - -
England median hourly rate £65.50 £45.06 £42.00
% change year-on-year +45.37% +7.28% +1.20%

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 2,055 1,035 3,385
As % of all contract IT jobs advertised in the East of England 83.13% 84.49% 85.07%
Number of daily rates quoted 1,205 630 2,069
10th Percentile £170 £240 £250
25th Percentile £313 £313 £360
Median daily rate (50th Percentile) £450 £427 £440
Median % change year-on-year +5.32% -2.90% +0.57%
75th Percentile £540 £525 £525
90th Percentile £625 £600 £610
England median daily rate £525 £475 £475
% change year-on-year +10.53% - +1.06%
Number of hourly rates quoted 212 78 187
10th Percentile £12.25 £13.81 £10.68
25th Percentile £12.94 £15.56 £13.00
Median hourly rate £17.11 £33.00 £17.50
Median % change year-on-year -48.17% +88.57% -
75th Percentile £36.00 £47.50 £46.00
90th Percentile £50.00 £53.75 £50.00
England median hourly rate £24.29 £25.00 £22.50
% change year-on-year -2.86% +11.11% +12.50%

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 24 October 2021.

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 24 October 2021. 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 +1 70 £530 +11.58% 7
Hertfordshire -3 32 £443 -6.84% 22
Cambridgeshire -15 11 £538 +14.67% 19
Suffolk -6 8 £375 -6.25% 1
Bedfordshire -14 1 - - 7
Norfolk - 1 - - 1
TDD
England

For the 6 months to 24 October 2021, 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 86 (69.92%) Agile Software Development
2 67 (54.47%) Scrum
3 64 (52.03%) AWS
4 55 (44.72%) Java
4 55 (44.72%) Microservices
5 49 (39.84%) BDD
6 48 (39.02%) Continuous Integration
7 47 (38.21%) MySQL
8 46 (37.40%) Oracle
9 44 (35.77%) Spring
10 41 (33.33%) JIRA
11 38 (30.89%) Spring Boot
12 37 (30.08%) Software Engineering
13 36 (29.27%) Confluence
13 36 (29.27%) DevOps
14 35 (28.46%) Java 11
14 35 (28.46%) C#
15 34 (27.64%) Java 8
16 32 (26.02%) Test Automation
17 31 (25.20%) Jenkins
17 31 (25.20%) Oracle Database
18 30 (24.39%) Docker
19 29 (23.58%) Social Skills
19 29 (23.58%) Pair Programming
20 28 (22.76%) J2SE
20 28 (22.76%) Hybrid Cloud
21 27 (21.95%) Terraform
21 27 (21.95%) JavaScript
22 26 (21.14%) Kanban
22 26 (21.14%) Ansible

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 36 (29.27%) Confluence
2 5 (4.07%) OpenStack
3 3 (2.44%) IIS
4 2 (1.63%) Adobe Experience Manager
4 2 (1.63%) Apache
4 2 (1.63%) Apache Spark
4 2 (1.63%) CMS
5 1 (0.81%) Apache Solr
5 1 (0.81%) CoreMedia CMS
5 1 (0.81%) IBM Domino
5 1 (0.81%) JBoss
5 1 (0.81%) Sitecore CMS
5 1 (0.81%) WebLogic
5 1 (0.81%) WebSphere
Applications
1 2 (1.63%) Microsoft Excel
Business Applications
1 2 (1.63%) Oracle BPM
2 1 (0.81%) Magento
Cloud Services
1 64 (52.03%) AWS
2 19 (15.45%) Amazon ECS
2 19 (15.45%) Amazon EKS
2 19 (15.45%) Azure
3 15 (12.20%) Serverless
4 5 (4.07%) AWS Lambda
4 5 (4.07%) Azure Cosmos DB
4 5 (4.07%) Azure Event Grid
4 5 (4.07%) Azure Functions
4 5 (4.07%) Azure Pipelines
4 5 (4.07%) Azure Service Bus
5 3 (2.44%) Akamai
5 3 (2.44%) GitHub
6 2 (1.63%) Amazon EC2
6 2 (1.63%) BlazeMeter
6 2 (1.63%) OpenShift
7 1 (0.81%) AWS CloudFormation
7 1 (0.81%) GCP
7 1 (0.81%) PaaS
7 1 (0.81%) SaaS
Communications & Networking
1 4 (3.25%) DECT
1 4 (3.25%) IPv4
1 4 (3.25%) IPv6
1 4 (3.25%) Multicast
1 4 (3.25%) PPP
1 4 (3.25%) UPnP
1 4 (3.25%) Wi-Fi
2 3 (2.44%) Broadband
3 2 (1.63%) HTTP
4 1 (0.81%) TCP/IP
Database & Business Intelligence
1 47 (38.21%) MySQL
2 31 (25.20%) Oracle Database
3 15 (12.20%) Relational Database
3 15 (12.20%) SQL Server
4 5 (4.07%) SQL Server Integration Services
4 5 (4.07%) SQL Server Reporting Services
5 4 (3.25%) Data Warehouse
5 4 (3.25%) Electronic Patient Records
5 4 (3.25%) Oracle Reports
6 3 (2.44%) Oracle Database 12c
7 2 (1.63%) Apache Cassandra
7 2 (1.63%) Microsoft Analysis Services
7 2 (1.63%) MS Access
7 2 (1.63%) NoSQL
7 2 (1.63%) PostgreSQL
7 2 (1.63%) Qlik Sense
7 2 (1.63%) QlikView
7 2 (1.63%) SQL Server 2012
7 2 (1.63%) SQL Server 2016
7 2 (1.63%) SQL Server Analysis Services
Development Applications
1 41 (33.33%) JIRA
2 31 (25.20%) Jenkins
3 17 (13.82%) Checkstyle
3 17 (13.82%) Git (software)
4 16 (13.01%) Artifactory
5 10 (8.13%) GitLab
6 6 (4.88%) Maven
6 6 (4.88%) Selenium
7 5 (4.07%) Cucumber
7 5 (4.07%) GDB
8 4 (3.25%) SQL Server Management Studio (SSMS)
9 2 (1.63%) git-flow
9 2 (1.63%) JIRA Agile
9 2 (1.63%) JMeter
9 2 (1.63%) Octopus Deploy
9 2 (1.63%) Postman
9 2 (1.63%) Visual Studio
9 2 (1.63%) WebDriver
10 1 (0.81%) JUnit
10 1 (0.81%) NUnit
General
1 29 (23.58%) Social Skills
2 14 (11.38%) Public Sector
3 5 (4.07%) Retail
4 3 (2.44%) Finance
5 2 (1.63%) Billing
5 2 (1.63%) Manufacturing
5 2 (1.63%) Presentation Skills
6 1 (0.81%) Analytical Skills
6 1 (0.81%) Automotive
6 1 (0.81%) Pharmaceutical
Job Titles
1 82 (66.67%) Developer
2 38 (30.89%) Java Developer
3 19 (15.45%) C# Developer
4 17 (13.82%) Senior Developer
5 16 (13.01%) Software Developer
6 15 (12.20%) C# Software Developer
6 15 (12.20%) DevOps Engineer
7 14 (11.38%) .NET Developer
8 11 (8.94%) Senior Java Developer
9 10 (8.13%) Platform Engineer
10 7 (5.69%) Azure Developer
10 7 (5.69%) Full Stack Developer
10 7 (5.69%) Software Engineer
11 6 (4.88%) Architect
11 6 (4.88%) Development Engineer
11 6 (4.88%) React Developer
12 5 (4.07%) Senior .NET Developer
13 4 (3.25%) Data Warehouse Developer
13 4 (3.25%) Embedded Software Engineer
13 4 (3.25%) Software Development Engineer
Libraries, Frameworks & Software Standards
1 44 (35.77%) Spring
2 38 (30.89%) Spring Boot
3 28 (22.76%) J2SE
4 17 (13.82%) .NET
5 16 (13.01%) CSS
5 16 (13.01%) HTML
6 15 (12.20%) React
7 13 (10.57%) ASP.NET Web API
8 12 (9.76%) AngularJS
9 10 (8.13%) .NET Core
9 10 (8.13%) Flask
9 10 (8.13%) Web Services
10 9 (7.32%) .NET Framework
10 9 (7.32%) Django
10 9 (7.32%) Entity Framework
10 9 (7.32%) Node.js
11 8 (6.50%) REST
12 7 (5.69%) ASP.NET
13 6 (4.88%) RabbitMQ
14 5 (4.07%) RESTful
Miscellaneous
1 28 (22.76%) Hybrid Cloud
2 9 (7.32%) User Experience
3 7 (5.69%) NHS
4 5 (4.07%) Embedded Systems
5 4 (3.25%) Greenfield Project
5 4 (3.25%) Public Cloud
6 3 (2.44%) N-Tier
7 2 (1.63%) Data Structures
7 2 (1.63%) Legacy Applications
7 2 (1.63%) Legacy Systems
7 2 (1.63%) Management Information System
8 1 (0.81%) Algorithms
8 1 (0.81%) Enterprise Software
8 1 (0.81%) Life Science
8 1 (0.81%) Renewable Energy
8 1 (0.81%) Self-Motivation
8 1 (0.81%) Vector Graphics
8 1 (0.81%) W3C
Operating Systems
1 25 (20.33%) Linux
2 5 (4.07%) OpenWrt
3 3 (2.44%) Windows
4 2 (1.63%) Android
4 2 (1.63%) Red Hat Enterprise Linux
4 2 (1.63%) Unix
5 1 (0.81%) Mac OS X
Processes & Methodologies
1 86 (69.92%) Agile Software Development
2 67 (54.47%) Scrum
3 55 (44.72%) Microservices
4 49 (39.84%) BDD
5 48 (39.02%) Continuous Integration
6 37 (30.08%) Software Engineering
7 36 (29.27%) DevOps
8 32 (26.02%) Test Automation
9 29 (23.58%) Pair Programming
10 26 (21.14%) Kanban
11 25 (20.33%) Scaled Agile Framework
12 24 (19.51%) Problem-Solving
12 24 (19.51%) User Stories
13 23 (18.70%) Unit Testing
14 22 (17.89%) Epics
14 22 (17.89%) Validation
15 21 (17.07%) OO
16 19 (15.45%) Continuous Deployment
17 18 (14.63%) OOP
18 17 (13.82%) Domain-Driven Design
Programming Languages
1 55 (44.72%) Java
2 35 (28.46%) C#
2 35 (28.46%) Java 11
3 34 (27.64%) Java 8
4 27 (21.95%) JavaScript
5 24 (19.51%) Python
6 17 (13.82%) Groovy
7 16 (13.01%) C++
8 12 (9.76%) SQL
9 8 (6.50%) TypeScript
10 7 (5.69%) Bash Shell
11 6 (4.88%) C
12 5 (4.07%) Shell Script
12 5 (4.07%) T-SQL
12 5 (4.07%) VBA
13 4 (3.25%) Kotlin
14 3 (2.44%) Go
14 3 (2.44%) Ruby
15 2 (1.63%) ES6
15 2 (1.63%) VB.NET
Qualifications
1 23 (18.70%) OCPJP
1 23 (18.70%) Sun Certification
2 22 (17.89%) SC Cleared
2 22 (17.89%) Security Cleared
3 4 (3.25%) Degree
Quality Assurance & Compliance
1 4 (3.25%) JTAG
1 4 (3.25%) QA
2 3 (2.44%) Accessibility
3 1 (0.81%) ISO 9000
System Software
1 30 (24.39%) Docker
2 6 (4.88%) Varnish
3 3 (2.44%) Firmware
4 2 (1.63%) Postfix
5 1 (0.81%) VMware Infrastructure
Systems Management
1 27 (21.95%) Terraform
2 26 (21.14%) Ansible
3 17 (13.82%) Kubernetes
4 15 (12.20%) Docker Swarm
5 1 (0.81%) Puppet
5 1 (0.81%) Rancher
5 1 (0.81%) Single Sign-On
Vendors
1 46 (37.40%) Oracle
2 23 (18.70%) Sun
3 7 (5.69%) Microsoft
4 6 (4.88%) IBM
5 5 (4.07%) ServiceNow
6 4 (3.25%) Pega
6 4 (3.25%) WSO2
7 3 (2.44%) Dynatrace
7 3 (2.44%) Google
7 3 (2.44%) Sitecore
8 2 (1.63%) Adobe
8 2 (1.63%) Alteryx
8 2 (1.63%) Coveo
8 2 (1.63%) MuleSoft
8 2 (1.63%) Splunk
8 2 (1.63%) VMware
9 1 (0.81%) Xerox