TDD Contracts in England

Test-Driven Development (TDD)
UK > England

The table below provides summary statistics for contract job vacancies advertised in England requiring TDD skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited TDD over the 6 months leading up to 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 151 118 72
Rank change year-on-year -33 -46 -18
Contract jobs citing TDD 459 714 1,651
As % of all contract jobs advertised in England 1.88% 1.92% 3.27%
As % of the Processes & Methodologies category 2.07% 2.22% 3.63%
Number of daily rates quoted 329 471 1,218
10th Percentile £380 £363 £450
25th Percentile £456 £463 £519
Median daily rate (50th Percentile) £534 £565 £625
Median % change year-on-year -5.58% -9.60% +4.17%
75th Percentile £680 £725 £738
90th Percentile £825 £838 £825
UK median daily rate £525 £550 £600
% change year-on-year -4.55% -8.33% +4.35%
Number of hourly rates quoted 4 48 44
10th Percentile £62.38 - £57.38
25th Percentile £64.06 £61.25 £65.00
Median hourly rate £65.00 £65.00 £66.25
Median % change year-on-year - -1.89% +1.53%
75th Percentile - - £75.00
90th Percentile - - -
UK median hourly rate £65.00 £65.00 £67.00
% change year-on-year - -2.99% +2.29%

All Process and Methodology Skills
England

TDD falls under the Processes and Methodologies category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring process or methodology skills in England.

Contract vacancies with a requirement for process or methodology skills 22,202 32,193 45,529
As % of all contract IT jobs advertised in England 91.16% 86.56% 90.24%
Number of daily rates quoted 14,534 21,105 31,969
10th Percentile £310 £300 £325
25th Percentile £413 £413 £445
Median daily rate (50th Percentile) £525 £525 £550
Median % change year-on-year - -4.55% +2.33%
75th Percentile £638 £650 £675
90th Percentile £750 £750 £765
UK median daily rate £520 £525 £550
% change year-on-year -0.95% -4.55% +4.76%
Number of hourly rates quoted 921 2,246 1,592
10th Percentile £14.42 £12.92 £10.87
25th Percentile £18.20 £16.01 £16.25
Median hourly rate £29.07 £36.00 £37.50
Median % change year-on-year -19.25% -4.00% +53.06%
75th Percentile £63.75 £60.00 £65.00
90th Percentile £75.00 £72.50 £75.00
UK median hourly rate £29.00 £35.65 £37.30
% change year-on-year -18.65% -4.42% +49.20%

TDD
Job Vacancy Trend in England

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

Job vacancy trend for TDD in England

TDD
Contractor Daily Rate Trend in England

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

Daily rate trend for TDD in England

TDD
Daily Rate Histogram in England

Daily rate distribution for jobs citing TDD in England over the 6 months to 1 May 2025.

Daily rate histogram for TDD in England

TDD
Contractor Hourly Rate Trend in England

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

Hourly rate trend for TDD in England

TDD
Contract Job Locations in 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 England region over the 6 months to 1 May 2025. 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
London -47 284 £615 +2.50% 321
North of England +39 83 £501 -8.95% 177
North West +27 37 £513 -2.24% 130
Yorkshire +14 37 £520 -11.15% 36
Midlands +38 28 £461 +6.03% 50
West Midlands +24 21 £460 +2.22% 34
South East +9 21 £500 +5.26% 134
South West +34 16 £373 -34.79% 31
East of England -10 15 £489 -0.80% 47
North East +6 10 £480 +28.00% 12
East Midlands +16 7 £463 +16.35% 15
TDD
UK

TDD
Co-occurring Skills and Capabilities in England by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 51 (11.11%) Confluence
2 6 (1.31%) Apache
2 6 (1.31%) Apache Spark
3 5 (1.09%) CMS
3 5 (1.09%) WordPress
4 4 (0.87%) Drupal
5 3 (0.65%) SharePoint
6 2 (0.44%) Alfresco
6 2 (0.44%) Apache Airflow
6 2 (0.44%) Camunda
7 1 (0.22%) Anypoint
7 1 (0.22%) IIS
7 1 (0.22%) MQSeries
7 1 (0.22%) nginx
7 1 (0.22%) Oracle Coherence
7 1 (0.22%) Tomcat
7 1 (0.22%) Umbraco
7 1 (0.22%) WebLogic
Applications
1 3 (0.65%) Microsoft Office
2 2 (0.44%) Microsoft Excel
2 2 (0.44%) MS Visio
2 2 (0.44%) Notepad++
2 2 (0.44%) Open Workbench
Business Applications
1 4 (0.87%) Dynamics CRM
2 1 (0.22%) NetSuite
2 1 (0.22%) Oracle TCA
2 1 (0.22%) SAP HCM
2 1 (0.22%) Workday HCM
Cloud Services
1 166 (36.17%) AWS
2 137 (29.85%) Azure
3 57 (12.42%) GCP
4 52 (11.33%) Azure DevOps
5 32 (6.97%) GitHub
5 32 (6.97%) Serverless
6 25 (5.45%) Cloud Computing
7 24 (5.23%) Amazon S3
8 22 (4.79%) Amazon EC2
8 22 (4.79%) AWS Lambda
9 18 (3.92%) Slack
10 15 (3.27%) Route 53
11 12 (2.61%) Amazon EKS
11 12 (2.61%) AWS CloudFormation
12 11 (2.40%) Amazon SQS
13 10 (2.18%) Amazon CloudWatch
13 10 (2.18%) Azure Data Factory
13 10 (2.18%) SaaS
14 9 (1.96%) AWS KMS
14 9 (1.96%) OpenShift
Communications & Networking
1 11 (2.40%) HTTP
2 6 (1.31%) Firewall
3 5 (1.09%) Ethernet
3 5 (1.09%) TCP/IP
4 4 (0.87%) Internet
4 4 (0.87%) Network Security
4 4 (0.87%) Wireless
5 2 (0.44%) IPsec
5 2 (0.44%) Kerberos
5 2 (0.44%) SAN
5 2 (0.44%) SSL
6 1 (0.22%) PuTTY
6 1 (0.22%) VPN
Database & Business Intelligence
1 104 (22.66%) PostgreSQL
2 66 (14.38%) Relational Database
3 54 (11.76%) MongoDB
4 43 (9.37%) SQL Server
5 38 (8.28%) MySQL
6 34 (7.41%) NoSQL
7 24 (5.23%) Apache Cassandra
8 19 (4.14%) Redis
9 14 (3.05%) Amazon Aurora
10 12 (2.61%) Amazon RDS
10 12 (2.61%) DynamoDB
11 9 (1.96%) DocumentDB
12 5 (1.09%) Amazon Redshift
12 5 (1.09%) CockroachDB
12 5 (1.09%) RDBMS
13 3 (0.65%) Data Warehouse
13 3 (0.65%) Oracle Database
13 3 (0.65%) SQL Server Reporting Services
14 2 (0.44%) BigQuery
14 2 (0.44%) SQL Server Integration Services
Development Applications
1 94 (20.48%) Jenkins
2 89 (19.39%) Git
3 87 (18.95%) JUnit
4 65 (14.16%) JIRA
5 48 (10.46%) Mockito
6 42 (9.15%) Gradle
7 37 (8.06%) Cucumber
8 29 (6.32%) Liquibase
9 26 (5.66%) Jasmine
9 26 (5.66%) Maven
10 23 (5.01%) GitLab
11 19 (4.14%) Selenium
12 11 (2.40%) Bitbucket Server
12 11 (2.40%) Postman
12 11 (2.40%) SonarQube
12 11 (2.40%) TeamCity
13 10 (2.18%) Cypress.io
14 9 (1.96%) Bitbucket
15 8 (1.74%) Visual Studio
16 6 (1.31%) Subversion
General
1 134 (29.19%) Finance
2 97 (21.13%) Social Skills
3 96 (20.92%) Public Sector
4 51 (11.11%) Banking
5 38 (8.28%) Analytical Skills
5 38 (8.28%) Marketing
6 37 (8.06%) Telecoms
7 36 (7.84%) Front Office
8 35 (7.63%) Electronics
8 35 (7.63%) Manufacturing
9 30 (6.54%) Investment Banking
10 15 (3.27%) Back Office
11 9 (1.96%) Military
11 9 (1.96%) Presentation Skills
12 8 (1.74%) Inclusion and Diversity
13 7 (1.53%) Retail Banking
14 3 (0.65%) Financial Institution
14 3 (0.65%) Retail
15 2 (0.44%) Automotive
15 2 (0.44%) Multimedia
Job Titles
1 288 (62.75%) Developer
2 124 (27.02%) Java Developer
3 107 (23.31%) Senior
4 73 (15.90%) Senior Developer
5 65 (14.16%) Lead
6 63 (13.73%) Software Engineer
7 48 (10.46%) Senior Java Developer
8 40 (8.71%) Full-Stack Developer
9 35 (7.63%) Lead Developer
10 33 (7.19%) C# Developer
11 30 (6.54%) Java Engineer
11 30 (6.54%) Lead Java Developer
12 26 (5.66%) React Developer
13 24 (5.23%) .NET Developer
14 22 (4.79%) Full-Stack Engineer
15 21 (4.58%) SC Cleared Java Developer
16 20 (4.36%) Java Software Engineer
17 18 (3.92%) Front-End Developer (Client-Side Developer)
18 17 (3.70%) Full-Stack Software Engineer
19 16 (3.49%) Developer/Software Engineer
Libraries, Frameworks & Software Standards
1 108 (23.53%) Spring
2 101 (22.00%) Spring Boot
3 89 (19.39%) React
4 82 (17.86%) .NET
5 72 (15.69%) Kafka
6 65 (14.16%) AngularJS
6 65 (14.16%) HTML
7 62 (13.51%) REST
8 61 (13.29%) RESTful
9 57 (12.42%) Node.js
10 52 (11.33%) CSS
10 52 (11.33%) Swagger
11 46 (10.02%) OpenAPI
12 37 (8.06%) Web Services
13 28 (6.10%) .NET Framework
14 26 (5.66%) Redux
14 26 (5.66%) Spring Batch
14 26 (5.66%) Vue
15 25 (5.45%) Hibernate
16 21 (4.58%) Spring Security
Miscellaneous
1 31 (6.75%) Fixed Income
2 26 (5.66%) Distributed Systems
3 25 (5.45%) Derivative
4 23 (5.01%) Product Ownership
5 19 (4.14%) Distributed Denial-of-Service
5 19 (4.14%) Equities
6 16 (3.49%) Hedge funds
7 15 (3.27%) Foreign Exchange (FX)
8 14 (3.05%) Cloud Native
8 14 (3.05%) Management Information System
9 13 (2.83%) N-Tier
9 13 (2.83%) Public Cloud
10 10 (2.18%) Market Risk
11 9 (1.96%) Algorithms
11 9 (1.96%) Self-Motivation
12 8 (1.74%) Legacy Systems
13 7 (1.53%) Blockchain
13 7 (1.53%) Equity Derivative
14 6 (1.31%) PKI
15 5 (1.09%) Data Structures
Operating Systems
1 61 (13.29%) Linux
2 27 (5.88%) Red Hat Enterprise Linux
3 14 (3.05%) Unix
4 12 (2.61%) Windows
5 9 (1.96%) Android
6 6 (1.31%) Apple iOS
7 4 (0.87%) Mac OS X
8 3 (0.65%) Windows Server
9 1 (0.22%) VMS
Processes & Methodologies
1 267 (58.17%) Agile
2 210 (45.75%) CI/CD
3 158 (34.42%) Microservices
4 156 (33.99%) DevOps
5 144 (31.37%) Software Engineering
6 139 (30.28%) BDD
7 114 (24.84%) Test Automation
8 113 (24.62%) Continuous Integration
9 80 (17.43%) Continuous Delivery
10 74 (16.12%) Containerisation
11 69 (15.03%) Scrum
12 66 (14.38%) Full-Stack Development
13 60 (13.07%) Design Patterns
14 53 (11.55%) Problem-Solving
15 52 (11.33%) Computer Science
16 51 (11.11%) Mentoring
17 48 (10.46%) Unit Testing
18 46 (10.02%) Analytics
18 46 (10.02%) Clean Code
19 43 (9.37%) OO
Programming Languages
1 243 (52.94%) Java
2 156 (33.99%) SQL
3 130 (28.32%) JavaScript
4 99 (21.57%) Python
5 90 (19.61%) C#
6 78 (16.99%) TypeScript
7 29 (6.32%) Bash
8 25 (5.45%) PowerShell
9 22 (4.79%) Scala
10 19 (4.14%) Kotlin
11 16 (3.49%) Shell Script
12 14 (3.05%) C++
13 9 (1.96%) PHP
14 7 (1.53%) T-SQL
15 6 (1.31%) F#
15 6 (1.31%) Groovy
16 5 (1.09%) Go
17 4 (0.87%) Apex Code
17 4 (0.87%) DAML
17 4 (0.87%) Haskell
Qualifications
1 105 (22.88%) Security Cleared
2 96 (20.92%) SC Cleared
3 51 (11.11%) Degree
4 20 (4.36%) Computer Science Degree
5 14 (3.05%) Numerate Degree
6 8 (1.74%) Azure Certification
7 7 (1.53%) Microsoft Certification
8 5 (1.09%) MCPD
8 5 (1.09%) MCSD
9 4 (0.87%) ISTQB
10 3 (0.65%) BPSS Clearance
11 2 (0.44%) AWS Certification
11 2 (0.44%) SAFe Agilist
11 2 (0.44%) TOGAF Certification
12 1 (0.22%) ISTQB Foundation Certification
12 1 (0.22%) MCAD
12 1 (0.22%) MCSA
12 1 (0.22%) MCSE
12 1 (0.22%) OCA
12 1 (0.22%) Oracle Certification
Quality Assurance & Compliance
1 27 (5.88%) QA
2 22 (4.79%) Accessibility
3 14 (3.05%) WCAG
4 11 (2.40%) PCI DSS
5 2 (0.44%) Data Quality
5 2 (0.44%) GDPR
5 2 (0.44%) MiFID
6 1 (0.22%) HL7
6 1 (0.22%) ISO/IEC 27001
6 1 (0.22%) NIST
6 1 (0.22%) Software Quality Assurance
System Software
1 129 (28.10%) Docker
2 5 (1.09%) Postfix
3 2 (0.44%) RACF
4 1 (0.22%) Active Directory
4 1 (0.22%) Apache ZooKeeper
4 1 (0.22%) Embedded Firmware
4 1 (0.22%) Firmware
4 1 (0.22%) VMware Infrastructure
Systems Management
1 92 (20.04%) Kubernetes
2 31 (6.75%) Terraform
3 17 (3.70%) Ansible
4 13 (2.83%) Grafana
4 13 (2.83%) Prometheus
5 8 (1.74%) Kibana
6 4 (0.87%) Progress Chef
6 4 (0.87%) Puppet
7 3 (0.65%) Single Sign-On
8 2 (0.44%) Packer
8 2 (0.44%) vRealize
9 1 (0.22%) CloudHub
9 1 (0.22%) Docker Swarm
9 1 (0.22%) Kubeflow
9 1 (0.22%) PowerCLI
9 1 (0.22%) vCenter Server
Vendors
1 61 (13.29%) Microsoft
2 37 (8.06%) SAP
3 23 (5.01%) Oracle
4 12 (2.61%) Google
5 9 (1.96%) Atlassian
5 9 (1.96%) Splunk
6 7 (1.53%) Salesforce
7 6 (1.31%) Jaspersoft
7 6 (1.31%) TIBCO
8 5 (1.09%) Databricks
9 4 (0.87%) CA Agile Central
9 4 (0.87%) Dynatrace
9 4 (0.87%) Zend
10 3 (0.65%) Red Hat
10 3 (0.65%) VMware
11 2 (0.44%) Brocade
11 2 (0.44%) Cisco
11 2 (0.44%) Dell
11 2 (0.44%) EMC
11 2 (0.44%) HP