Test-Driven Development (TDD)
UK

The following table provides summary statistics for permanent job vacancies with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 29 November 2023 with a comparison to the same period in the previous 2 years.

6 months to
29 Nov 2023
Same period 2022 Same period 2021
Rank 119 65 41
Rank change year-on-year -54 -24 -8
Permanent jobs citing TDD 1,478 5,967 8,621
As % of all permanent jobs advertised in the UK 2.73% 4.74% 6.68%
As % of the Processes & Methodologies category 2.90% 4.95% 7.00%
Number of salaries quoted 1,233 3,449 4,904
10th Percentile £43,750 £46,250 £40,000
25th Percentile £52,500 £55,000 £48,750
Median annual salary (50th Percentile) £70,000 £70,000 £62,500
Median % change year-on-year - +12.00% +4.17%
75th Percentile £91,250 £86,250 £80,000
90th Percentile £112,500 £103,750 £95,000
UK excluding London median annual salary £60,000 £60,000 £55,000
% change year-on-year - +9.09% +4.76%

All Process and Methodology Skills
UK

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for process or methodology skills.

Permanent vacancies with a requirement for process or methodology skills 50,908 120,439 123,182
As % of all permanent jobs advertised in the UK 94.09% 95.71% 95.44%
Number of salaries quoted 36,868 73,620 81,568
10th Percentile £32,500 £34,459 £32,500
25th Percentile £43,750 £45,000 £42,500
Median annual salary (50th Percentile) £60,000 £60,000 £59,045
Median % change year-on-year - +1.62% +7.35%
75th Percentile £80,000 £81,250 £77,500
90th Percentile £98,825 £100,000 £95,000
UK excluding London median annual salary £52,500 £53,000 £50,000
% change year-on-year -0.94% +6.00% +3.63%

TDD
Job Vacancy Trend

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

Job vacancy trend for TDD in the UK

TDD
Salary Trend

3-month moving average salary quoted in jobs citing TDD.

Salary trend for TDD in the UK

TDD
Salary Histogram

Salary distribution for jobs citing TDD over the 6 months to 29 November 2023.

Salary histogram for TDD in the UK

TDD
Top 17 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the UK over the 6 months to 29 November 2023. 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Jobs
England -48 1,330 £70,000 - 736
UK excluding London -68 757 £60,000 - 510
Work from Home -49 718 £65,000 - 557
London -34 637 £85,000 +6.25% 325
North of England -51 226 £65,000 +4.00% 158
South East -28 190 £65,000 +8.33% 153
North West -32 142 £65,000 - 115
Midlands +23 121 £53,500 -10.83% 47
South West -63 105 £52,500 -8.70% 54
Scotland -34 81 £55,000 -12.00% 27
West Midlands +19 79 £55,000 -8.33% 36
Yorkshire -5 70 £65,000 +8.33% 31
East Midlands +26 42 £52,500 -4.55% 11
East of England -22 22 £66,250 +6.00% 61
North East -3 14 £65,000 +12.07% 12
Wales -27 8 £55,000 -7.04% 18
Northern Ireland +2 7 £52,500 -19.23% 10

TDD
Co-occurring Skills and Capabilities 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 37 (2.50%) Confluence
2 26 (1.76%) IIS
3 17 (1.15%) SharePoint
4 15 (1.01%) Apache Spark
4 15 (1.01%) NServiceBus
5 13 (0.88%) OpenStack
6 11 (0.74%) JBoss
7 10 (0.68%) Red Hat Fuse
8 9 (0.61%) CMS
9 5 (0.34%) Apache Solr
9 5 (0.34%) WebSphere
9 5 (0.34%) WebSphere Application Server
10 4 (0.27%) Apache
10 4 (0.27%) Cloud Foundry
10 4 (0.27%) Oracle SOA Suite
10 4 (0.27%) SAS
10 4 (0.27%) Umbraco
11 3 (0.20%) Tomcat
12 2 (0.14%) Adobe Experience Manager
12 2 (0.14%) Sitecore CMS
Applications
1 2 (0.14%) Microsoft Office
2 1 (0.068%) Adobe Illustrator
2 1 (0.068%) Adobe Premiere
2 1 (0.068%) Chatbot
2 1 (0.068%) Photoshop
2 1 (0.068%) Trello
Business Applications
1 21 (1.42%) Dynamics CRM
2 5 (0.34%) Dynamics GP
3 2 (0.14%) Magento
3 2 (0.14%) Payment Gateway
4 1 (0.068%) Shopify
4 1 (0.068%) Teamcenter
Cloud Services
1 554 (37.48%) Azure
2 523 (35.39%) AWS
3 212 (14.34%) GCP
4 174 (11.77%) Azure DevOps
5 124 (8.39%) Serverless
6 112 (7.58%) SaaS
7 84 (5.68%) GitHub
8 53 (3.59%) Azure Service Bus
9 45 (3.04%) Azure Functions
10 43 (2.91%) Amazon ECS
11 39 (2.64%) Power Platform
12 34 (2.30%) Azure Logic Apps
13 32 (2.17%) Amazon EKS
13 32 (2.17%) AWS Lambda
14 29 (1.96%) Cloud Computing
14 29 (1.96%) Dynamics 365
15 28 (1.89%) Azure Cosmos DB
16 23 (1.56%) Azure API Management
16 23 (1.56%) Azure Data Factory
17 20 (1.35%) AWS CloudFormation
Communications & Networking
1 21 (1.42%) WAN
2 15 (1.01%) Internet
3 11 (0.74%) SSH
4 10 (0.68%) HTTP
5 9 (0.61%) Wireless
6 5 (0.34%) ATM
6 5 (0.34%) DNS
6 5 (0.34%) Ethernet
6 5 (0.34%) Modbus
6 5 (0.34%) RS-232
6 5 (0.34%) RS-422
6 5 (0.34%) RS-485
7 3 (0.20%) AMQP
7 3 (0.20%) Bluetooth
7 3 (0.20%) Firewall
7 3 (0.20%) GSM
8 2 (0.14%) LAN
8 2 (0.14%) Network Security
8 2 (0.14%) Reverse Proxy
8 2 (0.14%) SSL
Database & Business Intelligence
1 254 (17.19%) SQL Server
2 146 (9.88%) NoSQL
3 105 (7.10%) Relational Database
4 104 (7.04%) PostgreSQL
5 98 (6.63%) MySQL
6 53 (3.59%) MongoDB
7 33 (2.23%) Big Data
8 30 (2.03%) Elasticsearch
8 30 (2.03%) RDBMS
8 30 (2.03%) Redis
9 28 (1.89%) Power BI
10 22 (1.49%) SQLite
11 19 (1.29%) SQL Server Integration Services
12 16 (1.08%) Hadoop
13 14 (0.95%) Azure SQL Database
14 10 (0.68%) BigQuery
14 10 (0.68%) Event Store
14 10 (0.68%) RavenDB
15 9 (0.61%) Data Lake
15 9 (0.61%) Flink
Development Applications
1 265 (17.93%) Git
2 175 (11.84%) Jenkins
3 122 (8.25%) Selenium
4 72 (4.87%) JUnit
5 70 (4.74%) Visual Studio
6 69 (4.67%) Cucumber
7 67 (4.53%) JIRA
8 60 (4.06%) Maven
9 46 (3.11%) Postman
10 37 (2.50%) SpecFlow
11 36 (2.44%) Cypress.io
12 34 (2.30%) GitLab
12 34 (2.30%) TeamCity
13 31 (2.10%) NUnit
14 29 (1.96%) Subversion
15 28 (1.89%) WebDriver
16 25 (1.69%) Team Foundation Server
17 20 (1.35%) Jasmine
17 20 (1.35%) Protractor
18 19 (1.29%) SonarQube
General
1 354 (23.95%) Finance
2 279 (18.88%) Social Skills
3 126 (8.53%) Banking
4 101 (6.83%) Front Office
5 96 (6.50%) Retail
6 81 (5.48%) Inclusion and Diversity
7 74 (5.01%) Analytical Skills
8 57 (3.86%) Public Sector
9 26 (1.76%) Investment Banking
10 24 (1.62%) Legal
11 23 (1.56%) Financial Institution
12 22 (1.49%) Presentation Skills
13 21 (1.42%) Marketing
14 12 (0.81%) Games
14 12 (0.81%) Tech for Good
15 11 (0.74%) Aviation
16 10 (0.68%) Back Office
17 9 (0.61%) Influencing Skills
18 8 (0.54%) Aerospace
18 8 (0.54%) Automotive
Job Titles
1 810 (54.80%) Developer
2 357 (24.15%) Senior
3 319 (21.58%) Software Engineer
4 234 (15.83%) .NET Developer
5 209 (14.14%) Java Developer
6 189 (12.79%) Lead
6 189 (12.79%) Senior Developer
7 130 (8.80%) Full Stack Developer
8 103 (6.97%) .NET Software Engineer
9 102 (6.90%) Software Developer
10 97 (6.56%) Senior Software Engineer
11 88 (5.95%) Lead Developer
12 87 (5.89%) .NET Software Developer
13 80 (5.41%) C# Developer
14 77 (5.21%) Architect
15 75 (5.07%) Developer/Software Engineer
16 54 (3.65%) Front-End Developer (Client-Side Developer)
16 54 (3.65%) React Developer
17 53 (3.59%) Software Manager
18 47 (3.18%) Senior .NET Developer
Libraries, Frameworks & Software Standards
1 590 (39.92%) .NET
2 410 (27.74%) React
3 292 (19.76%) AngularJS
4 240 (16.24%) CSS
5 237 (16.04%) HTML
6 229 (15.49%) ASP.NET
7 195 (13.19%) .NET Core
7 195 (13.19%) Spring
8 188 (12.72%) Node.js
9 175 (11.84%) REST
10 171 (11.57%) Web Services
11 163 (11.03%) RESTful
12 162 (10.96%) Spring Boot
13 159 (10.76%) Vue
14 157 (10.62%) .NET Framework
15 156 (10.55%) Kafka
16 108 (7.31%) Redux
17 97 (6.56%) Entity Framework
18 93 (6.29%) ASP.NET Web API
19 83 (5.62%) ASP.NET Core
Miscellaneous
1 107 (7.24%) Product Ownership
2 96 (6.50%) Derivative
3 86 (5.82%) Fixed Income
4 82 (5.55%) Hedge funds
5 78 (5.28%) Foreign Exchange (FX)
6 74 (5.01%) Cloud Native
7 67 (4.53%) Equities
8 59 (3.99%) Distributed Systems
9 57 (3.86%) Greenfield Project
10 40 (2.71%) Public Cloud
11 39 (2.64%) Mobile App
12 35 (2.37%) Virtual Team
13 34 (2.30%) Enterprise Software
14 27 (1.83%) Algorithms
15 22 (1.49%) Data Structures
16 19 (1.29%) Clustering
17 15 (1.01%) Hybrid Cloud
17 15 (1.01%) Self-Motivation
18 14 (0.95%) Onboarding
19 13 (0.88%) Legacy Applications
Operating Systems
1 101 (6.83%) Linux
2 56 (3.79%) Windows
3 32 (2.17%) Unix
4 22 (1.49%) Android
5 12 (0.81%) Apple iOS
6 9 (0.61%) Mac OS
7 7 (0.47%) CentOS
8 5 (0.34%) Ubuntu
9 3 (0.20%) Embedded Linux
9 3 (0.20%) Red Hat Enterprise Linux
10 2 (0.14%) Windows 10
10 2 (0.14%) Windows Server 2016
10 2 (0.14%) Windows Server 2019
11 1 (0.068%) Debian
11 1 (0.068%) FreeBSD
11 1 (0.068%) Mac OS X
11 1 (0.068%) VMS
11 1 (0.068%) Windows Server
Processes & Methodologies
1 967 (65.43%) Agile
2 572 (38.70%) DevOps
3 507 (34.30%) CI/CD
4 461 (31.19%) Software Engineering
5 399 (27.00%) BDD
6 323 (21.85%) Test Automation
7 306 (20.70%) Microservices
8 285 (19.28%) Full Stack Development
9 274 (18.54%) Scrum
10 224 (15.16%) SDLC
11 215 (14.55%) Design Patterns
11 215 (14.55%) Unit Testing
12 206 (13.94%) Mentoring
13 190 (12.86%) Continuous Integration
14 187 (12.65%) Problem-Solving
15 181 (12.25%) Fintech
16 180 (12.18%) MVC
17 170 (11.50%) SOLID
18 120 (8.12%) Kanban
19 112 (7.58%) Software Testing
Programming Languages
1 623 (42.15%) C#
2 571 (38.63%) Java
3 522 (35.32%) JavaScript
4 400 (27.06%) SQL
5 269 (18.20%) TypeScript
6 193 (13.06%) Python
7 69 (4.67%) T-SQL
8 60 (4.06%) Kotlin
9 58 (3.92%) C++
10 52 (3.52%) PHP
11 43 (2.91%) Scala
12 42 (2.84%) Go
12 42 (2.84%) PowerShell
13 29 (1.96%) Bash
14 20 (1.35%) C
15 19 (1.29%) Groovy
16 13 (0.88%) Ruby
17 12 (0.81%) XAML
18 9 (0.61%) R
19 8 (0.54%) PL/SQL
Qualifications
1 137 (9.27%) Security Cleared
2 98 (6.63%) SC Cleared
3 91 (6.16%) Degree
4 43 (2.91%) ISTQB
5 36 (2.44%) Computer Science Degree
6 30 (2.03%) ISEB
7 19 (1.29%) BPSS Clearance
8 13 (0.88%) DV Cleared
8 13 (0.88%) Master's Degree
9 10 (0.68%) AWS Certification
9 10 (0.68%) ISTQB Foundation Certification
10 6 (0.41%) Azure Certification
11 4 (0.27%) Numerate Degree
12 3 (0.20%) Microsoft Certification
12 3 (0.20%) PMI Certification
13 2 (0.14%) OCP
13 2 (0.14%) Oracle Certification
14 1 (0.068%) AWS Certified Developer
14 1 (0.068%) AWS Certified DevOps Engineer
14 1 (0.068%) MCP
Quality Assurance & Compliance
1 198 (13.40%) QA
2 31 (2.10%) Accessibility
3 9 (0.61%) WCAG
4 8 (0.54%) PCI DSS
5 7 (0.47%) ISO/IEC 27001
6 6 (0.41%) Data Quality
6 6 (0.41%) DO-178B
6 6 (0.41%) GAAP
6 6 (0.41%) ISO 9000
6 6 (0.41%) MISRA
7 4 (0.27%) GRC
7 4 (0.27%) Software Quality Assurance
8 3 (0.20%) GDPR
8 3 (0.20%) ISO 20022
9 1 (0.068%) ISO 9001
9 1 (0.068%) MiFID
9 1 (0.068%) PMO
System Software
1 223 (15.09%) Docker
2 19 (1.29%) VMware NSX
3 9 (0.61%) Active Directory
4 6 (0.41%) Embedded Firmware
4 6 (0.41%) Firmware
5 5 (0.34%) Hyper-V
6 4 (0.27%) IAG
7 3 (0.20%) Virtual Machines
8 2 (0.14%) HDFS
8 2 (0.14%) Postfix
8 2 (0.14%) vSphere
9 1 (0.068%) Oracle RAC
9 1 (0.068%) Slurm Workload Manager
9 1 (0.068%) Virtual Servers
9 1 (0.068%) VMware Infrastructure
Systems Management
1 263 (17.79%) Kubernetes
2 108 (7.31%) Terraform
3 38 (2.57%) Ansible
4 12 (0.81%) Grafana
4 12 (0.81%) Istio
5 11 (0.74%) Kibana
6 9 (0.61%) Progress Chef
7 8 (0.54%) Prometheus
7 8 (0.54%) Puppet
8 6 (0.41%) Control-M
8 6 (0.41%) Fortio
8 6 (0.41%) Kiali
9 3 (0.20%) HP Quality Center
10 2 (0.14%) Argo
10 2 (0.14%) Microsoft Intune
10 2 (0.14%) Oracle Enterprise Manager
11 1 (0.068%) Docker Swarm
11 1 (0.068%) Enterprise Manager Cloud Control
11 1 (0.068%) Kustomize
11 1 (0.068%) SELinux
Vendors
1 183 (12.38%) Microsoft
2 52 (3.52%) Oracle
3 46 (3.11%) Xamarin
4 26 (1.76%) Google
5 24 (1.62%) Finsemble
6 23 (1.56%) Salesforce
7 21 (1.42%) VMware
8 15 (1.01%) Confluent
8 15 (1.01%) Databricks
9 14 (0.95%) Atlassian
10 13 (0.88%) WSO2
11 9 (0.61%) Dell
11 9 (0.61%) Dynatrace
11 9 (0.61%) HP
11 9 (0.61%) Splunk
12 5 (0.34%) Adobe
12 5 (0.34%) IBM
12 5 (0.34%) MuleSoft
12 5 (0.34%) Teradata
13 4 (0.27%) Salesforce Marketing Cloud