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 28 May 2024 with a comparison to the same period in the previous 2 years.

6 months to
28 May 2024
Same period 2023 Same period 2022
Rank 117 77 43
Rank change year-on-year -40 -34 -4
Permanent jobs citing TDD 2,370 3,925 12,420
As % of all permanent jobs advertised in the UK 2.31% 4.03% 7.44%
As % of the Processes & Methodologies category 2.74% 4.22% 7.76%
Number of salaries quoted 1,815 2,492 4,376
10th Percentile £41,250 £46,250 £43,750
25th Percentile £48,750 £56,188 £52,500
Median annual salary (50th Percentile) £60,000 £70,000 £67,175
Median % change year-on-year -14.29% +4.21% +11.96%
75th Percentile £79,600 £90,000 £85,000
90th Percentile £99,500 £107,500 £100,000
UK excluding London median annual salary £57,500 £62,500 £57,500
% change year-on-year -8.00% +8.70% +8.49%

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 86,445 93,025 160,114
As % of all permanent jobs advertised in the UK 84.24% 95.56% 95.90%
Number of salaries quoted 60,550 54,985 83,280
10th Percentile £29,250 £34,000 £33,500
25th Percentile £40,000 £45,000 £43,750
Median annual salary (50th Percentile) £55,000 £61,000 £60,000
Median % change year-on-year -9.84% +1.67% +9.09%
75th Percentile £72,500 £81,250 £80,000
90th Percentile £92,500 £100,000 £96,250
UK excluding London median annual salary £50,000 £55,000 £52,500
% change year-on-year -9.09% +4.76% +9.38%

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 28 May 2024.

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 28 May 2024. 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 1,925 £60,000 -14.29% 569
UK excluding London -25 1,602 £57,500 -8.00% 360
Work from Home -8 1,288 £60,000 -14.29% 509
London -40 680 £80,000 -0.37% 237
North of England -5 450 £57,500 -11.54% 125
South East -34 423 £57,500 -8.00% 71
Scotland +3 321 £56,318 -18.91% 27
North West +3 305 £60,000 -7.69% 101
Midlands -79 136 £52,500 -12.50% 51
East of England -1 118 £60,000 -7.69% 28
South West -62 116 £60,000 - 42
Yorkshire -4 106 £55,000 -16.03% 16
West Midlands -36 102 £52,500 -12.50% 34
North East -14 39 £55,000 +2.33% 10
East Midlands -85 34 £50,000 -16.67% 17
Wales -18 28 £45,000 +63.64% 16
Northern Ireland -35 10 £75,400 +50.80% 8

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
1 100 (4.22%) Apache Spark
2 40 (1.69%) OpenStack
3 39 (1.65%) IIS
4 38 (1.60%) Apache
5 32 (1.35%) CMS
6 24 (1.01%) Confluence
7 23 (0.97%) Cloud Foundry
8 17 (0.72%) Apache Airflow
9 14 (0.59%) NServiceBus
10 12 (0.51%) JBoss
11 11 (0.46%) Microsoft Exchange
12 10 (0.42%) Red Hat Fuse
13 8 (0.34%) SharePoint
14 6 (0.25%) DNN
14 6 (0.25%) EPiServer
14 6 (0.25%) Immediacy CMS
14 6 (0.25%) Kentico
14 6 (0.25%) Sitecore CMS
14 6 (0.25%) Sitefinity
14 6 (0.25%) Umbraco
Applications
1 10 (0.42%) Microsoft PowerPoint
2 3 (0.13%) Adobe XD
2 3 (0.13%) Simulink
3 2 (0.084%) Microsoft Project
4 1 (0.042%) Mathematica
4 1 (0.042%) Microsoft Excel
4 1 (0.042%) Microsoft Office
Business Applications
1 17 (0.72%) SDL Web 8
2 12 (0.51%) Payment Gateway
3 4 (0.17%) Dynamics CRM
3 4 (0.17%) NetSuite
4 2 (0.084%) Magento
4 2 (0.084%) Shopify
5 1 (0.042%) Towers Watson Igloo
Cloud Services
1 1,173 (49.49%) AWS
2 1,043 (44.01%) Azure
3 193 (8.14%) Serverless
4 168 (7.09%) GCP
5 148 (6.24%) Azure DevOps
6 132 (5.57%) SaaS
7 76 (3.21%) AWS Lambda
8 62 (2.62%) GitHub
9 61 (2.57%) Amazon ECS
10 59 (2.49%) Amazon EKS
11 53 (2.24%) Azure Service Bus
12 47 (1.98%) Cloud Computing
13 34 (1.43%) Azure Cosmos DB
14 33 (1.39%) GitHub Actions
15 28 (1.18%) Azure Monitor
16 27 (1.14%) BlazeMeter
17 24 (1.01%) Azure Functions
18 23 (0.97%) dbt
19 22 (0.93%) Amazon SQS
20 21 (0.89%) Amazon S3
Communications & Networking
1 70 (2.95%) Internet
2 22 (0.93%) DNS
3 21 (0.89%) Broadband
4 20 (0.84%) Firewall
4 20 (0.84%) WAN
5 16 (0.68%) Hyperconnected
6 15 (0.63%) Mobile Broadband
7 10 (0.42%) Ethernet
7 10 (0.42%) Wireless
8 9 (0.38%) HTTP
9 8 (0.34%) Bluetooth
9 8 (0.34%) RS-232
9 8 (0.34%) RS-485
9 8 (0.34%) TCP/IP
10 5 (0.21%) Modbus
10 5 (0.21%) MQTT
10 5 (0.21%) VoIP
10 5 (0.21%) Wi-Fi
10 5 (0.21%) ZigBee
11 3 (0.13%) SSH
Database & Business Intelligence
1 620 (26.16%) SQL Server
2 341 (14.39%) MongoDB
3 328 (13.84%) NoSQL
4 277 (11.69%) Elasticsearch
5 173 (7.30%) Azure SQL Database
6 171 (7.22%) PostgreSQL
7 148 (6.24%) Relational Database
8 113 (4.77%) MySQL
9 85 (3.59%) Apache Hive
9 85 (3.59%) HBase
10 68 (2.87%) Hadoop
11 67 (2.83%) Big Data
12 51 (2.15%) DynamoDB
13 40 (1.69%) Amazon RDS
14 29 (1.22%) Redis
15 24 (1.01%) Looker
16 17 (0.72%) BigQuery
17 16 (0.68%) SQL Server Analysis Services
18 15 (0.63%) CouchDB
18 15 (0.63%) Data Warehouse
Development Applications
1 525 (22.15%) Git
2 255 (10.76%) Jenkins
3 116 (4.89%) JUnit
3 116 (4.89%) Selenium
4 107 (4.51%) Cypress.io
5 89 (3.76%) JIRA
6 87 (3.67%) GitLab
7 85 (3.59%) Bitbucket Server
8 79 (3.33%) Jasmine
9 71 (3.00%) WebDriver
10 67 (2.83%) Cucumber
11 65 (2.74%) Karma Test Runner
12 62 (2.62%) Protractor
13 59 (2.49%) Visual Studio
14 47 (1.98%) Maven
15 44 (1.86%) NUnit
16 42 (1.77%) Gradle
17 39 (1.65%) JMeter
17 39 (1.65%) TeamCity
18 34 (1.43%) Postman
General
1 714 (30.13%) Finance
2 456 (19.24%) Social Skills
3 338 (14.26%) Inclusion and Diversity
4 279 (11.77%) Law
5 212 (8.95%) Banking
6 164 (6.92%) Marketing
7 119 (5.02%) Public Sector
8 118 (4.98%) Investment Banking
9 93 (3.92%) Front Office
10 90 (3.80%) Legal
11 72 (3.04%) Analytical Skills
12 62 (2.62%) Retail
13 55 (2.32%) Presentation Skills
14 51 (2.15%) Advertising
15 44 (1.86%) Games
16 39 (1.65%) Retail Banking
17 28 (1.18%) Tech for Good
18 24 (1.01%) Telecoms
19 18 (0.76%) Back Office
20 17 (0.72%) Local Government
Job Titles
1 1,434 (60.51%) Developer
2 607 (25.61%) .NET Developer
3 542 (22.87%) Software Engineer
4 475 (20.04%) Senior
5 309 (13.04%) Lead
6 249 (10.51%) C# Developer
7 245 (10.34%) Senior Developer
8 216 (9.11%) Java Developer
9 206 (8.69%) C# .NET Developer
9 206 (8.69%) Java Engineer
10 170 (7.17%) Java Software Engineer
11 158 (6.67%) Full Stack Developer
12 139 (5.86%) Software Developer
13 115 (4.85%) Senior Software Engineer
14 104 (4.39%) AWS Engineer
15 100 (4.22%) AWS Software Engineer
16 96 (4.05%) Developer/Software Engineer
17 93 (3.92%) PHP Developer
18 89 (3.76%) Lead Developer
19 80 (3.38%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 925 (39.03%) .NET
2 716 (30.21%) React
3 577 (24.35%) .NET Core
4 555 (23.42%) AngularJS
5 517 (21.81%) ASP.NET
6 505 (21.31%) Node.js
7 457 (19.28%) Entity Framework
8 451 (19.03%) CSS
9 447 (18.86%) HTML
10 416 (17.55%) ASP.NET MVC
11 363 (15.32%) .NET Framework
11 363 (15.32%) Vue
12 329 (13.88%) Spring
13 290 (12.24%) REST
14 262 (11.05%) ASP.NET Web API
15 245 (10.34%) RESTful
16 233 (9.83%) Spring Boot
17 215 (9.07%) Web Services
18 203 (8.57%) Kafka
19 200 (8.44%) HTML5
Miscellaneous
1 171 (7.22%) Greenfield Project
2 158 (6.67%) Product Ownership
3 139 (5.86%) Algorithms
4 86 (3.63%) Data Structures
5 85 (3.59%) Cloud Native
6 72 (3.04%) Distributed Systems
7 70 (2.95%) Hedge funds
8 68 (2.87%) Fixed Income
9 65 (2.74%) Derivative
10 59 (2.49%) Foreign Exchange (FX)
11 55 (2.32%) Public Cloud
12 51 (2.15%) Equities
13 44 (1.86%) Onboarding
14 40 (1.69%) PropTech
15 39 (1.65%) Management Information System
16 38 (1.60%) Client/Server
17 35 (1.48%) Private Cloud
18 31 (1.31%) Enterprise Software
19 28 (1.18%) Market Risk
20 25 (1.05%) Digital TV
Operating Systems
1 124 (5.23%) Unix
2 109 (4.60%) Linux
3 40 (1.69%) Apple iOS
4 33 (1.39%) Android
5 26 (1.10%) Windows
6 13 (0.55%) Windows Server 2019
7 5 (0.21%) Embedded Linux
7 5 (0.21%) FreeRTOS
7 5 (0.21%) ThreadX
8 4 (0.17%) CentOS
9 3 (0.13%) FreeBSD
9 3 (0.13%) Mac OS X
10 2 (0.084%) Debian
10 2 (0.084%) Red Hat Enterprise Linux
10 2 (0.084%) Ubuntu
11 1 (0.042%) Solaris
11 1 (0.042%) Windows Server 2012
Processes & Methodologies
1 1,805 (76.16%) Agile
2 851 (35.91%) BDD
3 821 (34.64%) Software Engineering
4 806 (34.01%) Full Stack Development
5 796 (33.59%) CI/CD
6 784 (33.08%) Microservices
7 582 (24.56%) Scrum
8 572 (24.14%) DevOps
9 527 (22.24%) MVC
10 427 (18.02%) Test Automation
11 383 (16.16%) Kanban
12 338 (14.26%) SDLC
13 331 (13.97%) Mentoring
14 316 (13.33%) Continuous Integration
15 304 (12.83%) Problem-Solving
16 248 (10.46%) Unit Testing
17 237 (10.00%) Machine Learning
18 221 (9.32%) SOLID
19 218 (9.20%) Continuous Improvement
20 212 (8.95%) Artificial Intelligence
Programming Languages
1 1,012 (42.70%) JavaScript
2 954 (40.25%) C#
3 808 (34.09%) Java
4 750 (31.65%) SQL
5 542 (22.87%) TypeScript
6 443 (18.69%) Python
7 137 (5.78%) PHP
8 132 (5.57%) Go
9 90 (3.80%) PL/SQL
10 78 (3.29%) Kotlin
11 44 (1.86%) C
12 43 (1.81%) C++
13 40 (1.69%) T-SQL
14 33 (1.39%) Ruby
15 31 (1.31%) Scala
15 31 (1.31%) Shell Script
16 25 (1.05%) Bicep
17 17 (0.72%) Ada
17 17 (0.72%) Rust
18 15 (0.63%) Embedded C
Qualifications
1 178 (7.51%) Degree
2 163 (6.88%) Security Cleared
3 107 (4.51%) SC Cleared
4 62 (2.62%) Computer Science Degree
5 53 (2.24%) DBS Check
6 49 (2.07%) BPSS Clearance
7 35 (1.48%) Azure Certification
8 24 (1.01%) AWS Certification
9 8 (0.34%) Master's Degree
10 5 (0.21%) CIPD
10 5 (0.21%) PhD
11 4 (0.17%) DV Cleared
12 3 (0.13%) Microsoft Certification
12 3 (0.13%) PMI Certification
13 2 (0.084%) CISSP
13 2 (0.084%) ISTQB
13 2 (0.084%) PMP
13 2 (0.084%) SAFe Agilist
14 1 (0.042%) AWS Certified Developer
14 1 (0.042%) ISEB
Quality Assurance & Compliance
1 168 (7.09%) QA
2 46 (1.94%) Accessibility
3 19 (0.80%) PMO
4 11 (0.46%) GDPR
5 6 (0.25%) WCAG
6 4 (0.17%) DICOM
6 4 (0.17%) HL7
6 4 (0.17%) ISO 13485
7 3 (0.13%) Data Quality
7 3 (0.13%) Def Stans
7 3 (0.13%) ISO/IEC 27001
7 3 (0.13%) MISRA
7 3 (0.13%) PSD2
8 2 (0.084%) GRC
8 2 (0.084%) ISO 9000
8 2 (0.084%) PCI DSS
8 2 (0.084%) SEPA
9 1 (0.042%) MiFID
System Software
1 390 (16.46%) Docker
2 85 (3.59%) HDFS
3 30 (1.27%) Hyper-V
4 25 (1.05%) Active Directory
5 20 (0.84%) Virtual Servers
5 20 (0.84%) VMware NSX
6 9 (0.38%) Firmware
7 2 (0.084%) Apache ZooKeeper
8 1 (0.042%) etcd
8 1 (0.042%) GridGain
8 1 (0.042%) Slurm Workload Manager
8 1 (0.042%) Virtual Desktop
8 1 (0.042%) Virtual Machines
Systems Management
1 305 (12.87%) Kubernetes
2 263 (11.10%) Terraform
3 75 (3.16%) Ansible
4 21 (0.89%) Grafana
5 18 (0.76%) Kibana
6 9 (0.38%) Prometheus
7 5 (0.21%) Progress Chef
7 5 (0.21%) Puppet
8 3 (0.13%) Argo
8 3 (0.13%) Control-M
9 2 (0.084%) Istio
9 2 (0.084%) Kustomize
9 2 (0.084%) linkerd
10 1 (0.042%) Active Directory Federation Services
10 1 (0.042%) Consul
10 1 (0.042%) Hadoop YARN
10 1 (0.042%) HAProxy
10 1 (0.042%) Nagios
10 1 (0.042%) Red Hat Spacewalk
Vendors
1 598 (25.23%) Microsoft
2 122 (5.15%) Databricks
3 85 (3.59%) Informatica
4 55 (2.32%) Cloudera
5 53 (2.24%) Oracle
6 40 (1.69%) WSO2
7 38 (1.60%) Google
8 26 (1.10%) Facebook
9 24 (1.01%) Atlassian
10 20 (0.84%) VMware
11 18 (0.76%) Splunk
12 16 (0.68%) IBM
12 16 (0.68%) Salesforce
13 11 (0.46%) Red Hat
14 10 (0.42%) Teradata
15 9 (0.38%) TOWER Software
16 8 (0.34%) Adobe
17 7 (0.30%) Bloomberg
17 7 (0.30%) ServiceNow
18 6 (0.25%) Sitecore