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 23 April 2024 with a comparison to the same period in the previous 2 years.

6 months to
23 Apr 2024
Same period 2023 Same period 2022
Rank 115 76 43
Rank change year-on-year -39 -33 -6
Permanent jobs citing TDD 2,345 4,371 11,038
As % of all permanent jobs advertised in the UK 2.40% 4.14% 7.17%
As % of the Processes & Methodologies category 2.79% 4.32% 7.50%
Number of salaries quoted 1,816 2,788 4,483
10th Percentile £41,250 £46,250 £43,000
25th Percentile £48,750 £56,250 £52,500
Median annual salary (50th Percentile) £60,000 £70,000 £67,350
Median % change year-on-year -14.29% +3.93% +12.25%
75th Percentile £82,500 £90,000 £85,000
90th Percentile £100,625 £107,500 £100,000
UK excluding London median annual salary £57,500 £62,500 £57,500
% change year-on-year -8.00% +8.70% +6.48%

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 84,165 101,093 147,090
As % of all permanent jobs advertised in the UK 86.12% 95.64% 95.55%
Number of salaries quoted 59,702 59,212 83,288
10th Percentile £29,000 £34,000 £33,496
25th Percentile £40,000 £45,000 £43,750
Median annual salary (50th Percentile) £55,000 £61,600 £60,000
Median % change year-on-year -10.71% +2.67% +9.09%
75th Percentile £72,500 £82,500 £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 23 April 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 23 April 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 -46 1,893 £60,500 -16.55% 559
UK excluding London -29 1,585 £57,500 -8.00% 364
Work from Home -11 1,273 £60,000 -14.29% 471
London -40 671 £82,500 - 216
North of England -7 433 £57,500 -11.54% 113
South East -38 404 £60,000 - 104
Scotland -14 328 £55,000 -20.80% 19
North West +3 295 £60,000 -7.69% 86
Midlands -67 142 £52,500 -12.50% 41
South West -58 121 £60,000 - 31
East of England +11 114 £60,000 -7.69% 51
West Midlands -23 106 £52,500 -12.50% 24
Yorkshire -4 101 £55,000 -20.80% 18
North East -11 37 £55,000 - 11
East Midlands -83 36 £52,500 -17.32% 17
Wales -22 29 £45,000 +1.42% 14
Northern Ireland -28 14 £75,000 +50.00% 4

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 99 (4.22%) Apache Spark
2 43 (1.83%) IIS
2 43 (1.83%) OpenStack
3 39 (1.66%) Apache
4 28 (1.19%) CMS
5 22 (0.94%) Confluence
6 17 (0.72%) Apache Airflow
7 16 (0.68%) Cloud Foundry
8 12 (0.51%) JBoss
8 12 (0.51%) Red Hat Fuse
9 10 (0.43%) NServiceBus
10 9 (0.38%) SharePoint
11 8 (0.34%) Microsoft Exchange
12 6 (0.26%) DNN
12 6 (0.26%) EPiServer
12 6 (0.26%) Immediacy CMS
12 6 (0.26%) Kentico
12 6 (0.26%) Sitecore CMS
12 6 (0.26%) Sitefinity
12 6 (0.26%) Umbraco
Applications
1 10 (0.43%) Microsoft PowerPoint
2 3 (0.13%) Adobe XD
2 3 (0.13%) Simulink
3 2 (0.085%) Microsoft Project
4 1 (0.043%) Mathematica
4 1 (0.043%) Microsoft Office
Business Applications
1 13 (0.55%) SDL Web 8
2 12 (0.51%) Payment Gateway
3 5 (0.21%) Dynamics CRM
4 4 (0.17%) NetSuite
5 3 (0.13%) Magento
6 2 (0.085%) Shopify
7 1 (0.043%) Towers Watson Igloo
Cloud Services
1 1,163 (49.59%) AWS
2 1,032 (44.01%) Azure
3 184 (7.85%) Serverless
4 166 (7.08%) GCP
5 162 (6.91%) Azure DevOps
6 131 (5.59%) SaaS
7 70 (2.99%) Amazon ECS
7 70 (2.99%) GitHub
8 66 (2.81%) AWS Lambda
9 65 (2.77%) Azure Service Bus
10 64 (2.73%) Amazon EKS
11 53 (2.26%) Cloud Computing
12 34 (1.45%) Azure Functions
13 33 (1.41%) Azure Cosmos DB
14 32 (1.36%) GitHub Actions
15 29 (1.24%) Azure Monitor
16 27 (1.15%) Azure API Management
17 25 (1.07%) Azure Data Factory
18 23 (0.98%) BlazeMeter
19 22 (0.94%) dbt
Communications & Networking
1 73 (3.11%) Internet
2 28 (1.19%) WAN
3 20 (0.85%) DNS
4 19 (0.81%) Broadband
5 18 (0.77%) Firewall
6 16 (0.68%) Hyperconnected
7 13 (0.55%) Mobile Broadband
8 11 (0.47%) Wireless
9 10 (0.43%) Ethernet
10 9 (0.38%) RS-232
10 9 (0.38%) RS-485
11 8 (0.34%) Bluetooth
11 8 (0.34%) TCP/IP
12 6 (0.26%) HTTP
12 6 (0.26%) Modbus
13 5 (0.21%) VoIP
13 5 (0.21%) Wi-Fi
13 5 (0.21%) ZigBee
14 4 (0.17%) RS-422
15 3 (0.13%) SSL
Database & Business Intelligence
1 603 (25.71%) SQL Server
2 326 (13.90%) MongoDB
2 326 (13.90%) NoSQL
3 266 (11.34%) Elasticsearch
4 168 (7.16%) Azure SQL Database
5 159 (6.78%) PostgreSQL
6 146 (6.23%) Relational Database
7 97 (4.14%) MySQL
8 84 (3.58%) Apache Hive
8 84 (3.58%) HBase
9 67 (2.86%) Hadoop
10 65 (2.77%) Big Data
11 42 (1.79%) DynamoDB
12 28 (1.19%) Redis
13 27 (1.15%) Amazon RDS
14 25 (1.07%) Looker
15 18 (0.77%) Data Warehouse
15 18 (0.77%) SQL Server Analysis Services
16 17 (0.72%) BigQuery
17 15 (0.64%) Data Lake
Development Applications
1 489 (20.85%) Git
2 255 (10.87%) Jenkins
3 122 (5.20%) Selenium
4 119 (5.07%) JUnit
5 108 (4.61%) Cypress.io
6 84 (3.58%) Bitbucket Server
7 82 (3.50%) Jasmine
8 80 (3.41%) JIRA
9 75 (3.20%) GitLab
10 73 (3.11%) WebDriver
11 65 (2.77%) Karma Test Runner
12 62 (2.64%) Protractor
13 61 (2.60%) Cucumber
14 53 (2.26%) Visual Studio
15 49 (2.09%) Maven
16 44 (1.88%) TeamCity
17 42 (1.79%) Gradle
18 41 (1.75%) NUnit
19 38 (1.62%) Postman
20 33 (1.41%) JMeter
General
1 699 (29.81%) Finance
2 433 (18.46%) Social Skills
3 319 (13.60%) Inclusion and Diversity
4 262 (11.17%) Law
5 212 (9.04%) Banking
6 155 (6.61%) Marketing
7 122 (5.20%) Public Sector
8 116 (4.95%) Investment Banking
9 92 (3.92%) Front Office
10 89 (3.80%) Legal
11 72 (3.07%) Analytical Skills
12 63 (2.69%) Retail
13 59 (2.52%) Presentation Skills
14 48 (2.05%) Advertising
15 39 (1.66%) Games
16 31 (1.32%) Retail Banking
17 23 (0.98%) Tech for Good
18 21 (0.90%) Telecoms
19 18 (0.77%) Back Office
20 17 (0.72%) Local Government
Job Titles
1 1,419 (60.51%) Developer
2 580 (24.73%) .NET Developer
3 535 (22.81%) Software Engineer
4 492 (20.98%) Senior
5 306 (13.05%) Lead
6 251 (10.70%) Senior Developer
7 239 (10.19%) Java Developer
8 227 (9.68%) C# Developer
9 198 (8.44%) Java Engineer
10 183 (7.80%) C# .NET Developer
11 162 (6.91%) Java Software Engineer
12 152 (6.48%) Full Stack Developer
13 133 (5.67%) Software Developer
14 124 (5.29%) Senior Software Engineer
15 102 (4.35%) Developer/Software Engineer
16 99 (4.22%) Lead Developer
17 94 (4.01%) AWS Engineer
18 91 (3.88%) AWS Software Engineer
19 87 (3.71%) PHP Developer
20 83 (3.54%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 889 (37.91%) .NET
2 709 (30.23%) React
3 560 (23.88%) .NET Core
4 553 (23.58%) AngularJS
5 502 (21.41%) ASP.NET
5 502 (21.41%) Node.js
6 443 (18.89%) CSS
7 442 (18.85%) HTML
8 441 (18.81%) Entity Framework
9 404 (17.23%) ASP.NET MVC
10 362 (15.44%) Vue
11 349 (14.88%) .NET Framework
12 343 (14.63%) Spring
13 274 (11.68%) REST
14 264 (11.26%) ASP.NET Web API
15 246 (10.49%) Spring Boot
16 232 (9.89%) RESTful
17 211 (9.00%) Web Services
18 202 (8.61%) Kafka
19 195 (8.32%) HTML5
Miscellaneous
1 160 (6.82%) Greenfield Project
2 157 (6.70%) Product Ownership
3 132 (5.63%) Algorithms
4 92 (3.92%) Cloud Native
5 87 (3.71%) Data Structures
6 83 (3.54%) Distributed Systems
7 76 (3.24%) Fixed Income
8 71 (3.03%) Hedge funds
9 69 (2.94%) Derivative
10 64 (2.73%) Foreign Exchange (FX)
11 62 (2.64%) Public Cloud
12 58 (2.47%) Equities
13 42 (1.79%) Onboarding
14 40 (1.71%) Management Information System
15 37 (1.58%) PropTech
16 36 (1.54%) Client/Server
17 33 (1.41%) Enterprise Software
18 28 (1.19%) Clustering
19 27 (1.15%) Virtual Team
20 26 (1.11%) Private Cloud
Operating Systems
1 116 (4.95%) Unix
2 106 (4.52%) Linux
3 34 (1.45%) Apple iOS
4 32 (1.36%) Windows
5 28 (1.19%) Android
6 12 (0.51%) Windows Server 2019
7 9 (0.38%) Mac OS
8 5 (0.21%) Embedded Linux
8 5 (0.21%) FreeRTOS
8 5 (0.21%) ThreadX
9 3 (0.13%) CentOS
9 3 (0.13%) FreeBSD
9 3 (0.13%) Mac OS X
10 1 (0.043%) Debian
10 1 (0.043%) Red Hat Enterprise Linux
10 1 (0.043%) Solaris
10 1 (0.043%) Ubuntu
10 1 (0.043%) Windows Server 2012
Processes & Methodologies
1 1,781 (75.95%) Agile
2 836 (35.65%) BDD
3 812 (34.63%) Software Engineering
4 772 (32.92%) CI/CD
5 771 (32.88%) Full Stack Development
6 753 (32.11%) Microservices
7 587 (25.03%) DevOps
8 579 (24.69%) Scrum
9 508 (21.66%) MVC
10 436 (18.59%) Test Automation
11 384 (16.38%) Kanban
12 331 (14.12%) Mentoring
13 327 (13.94%) SDLC
14 306 (13.05%) Continuous Integration
15 302 (12.88%) Problem-Solving
16 232 (9.89%) Machine Learning
17 217 (9.25%) SOLID
18 216 (9.21%) Unit Testing
19 212 (9.04%) Continuous Improvement
20 210 (8.96%) Artificial Intelligence
Programming Languages
1 1,009 (43.03%) JavaScript
2 937 (39.96%) C#
3 811 (34.58%) Java
4 742 (31.64%) SQL
5 547 (23.33%) TypeScript
6 418 (17.83%) Python
7 130 (5.54%) PHP
8 116 (4.95%) Go
9 93 (3.97%) PL/SQL
10 77 (3.28%) Kotlin
11 47 (2.00%) T-SQL
12 45 (1.92%) C
12 45 (1.92%) C++
13 34 (1.45%) Ruby
14 32 (1.36%) Shell Script
15 31 (1.32%) Scala
16 25 (1.07%) Bicep
17 21 (0.90%) PowerShell
18 19 (0.81%) Ada
19 14 (0.60%) Embedded C
Qualifications
1 180 (7.68%) Degree
2 166 (7.08%) Security Cleared
3 107 (4.56%) SC Cleared
4 65 (2.77%) Computer Science Degree
5 47 (2.00%) BPSS Clearance
6 42 (1.79%) DBS Check
7 33 (1.41%) Azure Certification
8 27 (1.15%) AWS Certification
9 10 (0.43%) Master's Degree
10 5 (0.21%) PhD
11 4 (0.17%) CIPD
12 3 (0.13%) Numerate Degree
12 3 (0.13%) PMI Certification
13 2 (0.085%) CISSP
13 2 (0.085%) DV Cleared
13 2 (0.085%) ISTQB
13 2 (0.085%) PMP
13 2 (0.085%) SAFe Agilist
14 1 (0.043%) ISEB
14 1 (0.043%) Microsoft Certification
Quality Assurance & Compliance
1 164 (6.99%) QA
2 42 (1.79%) Accessibility
3 20 (0.85%) PMO
4 11 (0.47%) GDPR
5 6 (0.26%) WCAG
6 5 (0.21%) Data Quality
6 5 (0.21%) ISO/IEC 27001
7 4 (0.17%) DICOM
7 4 (0.17%) HL7
7 4 (0.17%) ISO 13485
7 4 (0.17%) ISO 9000
7 4 (0.17%) PCI DSS
8 3 (0.13%) Def Stans
8 3 (0.13%) MISRA
8 3 (0.13%) PSD2
9 2 (0.085%) ISO 20022
9 2 (0.085%) SEPA
10 1 (0.043%) GRC
System Software
1 381 (16.25%) Docker
2 84 (3.58%) HDFS
3 32 (1.36%) Hyper-V
4 28 (1.19%) VMware NSX
5 27 (1.15%) Active Directory
6 18 (0.77%) Virtual Servers
7 8 (0.34%) Firmware
8 1 (0.043%) etcd
8 1 (0.043%) GridGain
8 1 (0.043%) Slurm Workload Manager
8 1 (0.043%) Virtual Desktop
8 1 (0.043%) Virtual Machines
Systems Management
1 315 (13.43%) Kubernetes
2 265 (11.30%) Terraform
3 80 (3.41%) Ansible
4 16 (0.68%) Grafana
5 13 (0.55%) Kibana
6 9 (0.38%) Prometheus
7 7 (0.30%) Progress Chef
7 7 (0.30%) Puppet
8 6 (0.26%) Control-M
9 5 (0.21%) Argo
10 2 (0.085%) Istio
10 2 (0.085%) linkerd
11 1 (0.043%) Active Directory Federation Services
11 1 (0.043%) Consul
11 1 (0.043%) Hadoop YARN
11 1 (0.043%) HAProxy
11 1 (0.043%) Kustomize
11 1 (0.043%) Nagios
11 1 (0.043%) Oracle Enterprise Manager
11 1 (0.043%) Red Hat Spacewalk
Vendors
1 604 (25.76%) Microsoft
2 126 (5.37%) Databricks
3 84 (3.58%) Informatica
4 55 (2.35%) Cloudera
5 51 (2.17%) Oracle
6 43 (1.83%) WSO2
7 30 (1.28%) Google
8 28 (1.19%) VMware
9 26 (1.11%) Atlassian
9 26 (1.11%) Facebook
10 18 (0.77%) Splunk
11 16 (0.68%) Salesforce
12 15 (0.64%) IBM
13 10 (0.43%) Adobe
13 10 (0.43%) Teradata
14 9 (0.38%) Dell
14 9 (0.38%) Red Hat
15 8 (0.34%) TOWER Software
16 6 (0.26%) Alterian
16 6 (0.26%) Sitecore