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

6 months to
30 May 2024
Same period 2023 Same period 2022
Rank 117 78 43
Rank change year-on-year -39 -35 -4
Permanent jobs citing TDD 2,373 3,774 12,484
As % of all permanent jobs advertised in the UK 2.29% 3.94% 7.47%
As % of the Processes & Methodologies category 2.72% 4.13% 7.79%
Number of salaries quoted 1,819 2,445 4,350
10th Percentile £41,250 £46,250 £43,750
25th Percentile £48,750 £55,960 £52,500
Median annual salary (50th Percentile) £60,000 £70,000 £65,250
Median % change year-on-year -14.29% +7.28% +8.75%
75th Percentile £79,600 £90,000 £85,000
90th Percentile £98,750 £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 87,130 91,478 160,275
As % of all permanent jobs advertised in the UK 84.04% 95.50% 95.91%
Number of salaries quoted 60,896 54,580 82,863
10th Percentile £29,250 £34,000 £33,500
25th Percentile £40,000 £45,000 £43,750
Median annual salary (50th Percentile) £55,000 £60,899 £60,000
Median % change year-on-year -9.69% +1.50% +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 30 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 30 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 -41 1,927 £60,000 -14.29% 535
UK excluding London -25 1,603 £57,500 -8.00% 343
Work from Home -7 1,293 £60,000 -14.29% 478
London -38 683 £80,000 -0.37% 220
North of England -1 455 £57,500 -11.54% 123
South East -37 418 £57,500 -8.00% 63
Scotland -2 320 £56,318 -18.91% 28
North West +9 310 £60,000 -7.69% 101
Midlands -83 135 £52,500 -12.50% 49
East of England +3 118 £60,000 -7.69% 27
South West -60 117 £60,000 - 40
Yorkshire +1 105 £55,000 -16.03% 14
West Midlands -35 100 £52,500 -12.50% 33
North East -19 40 £55,000 +2.33% 10
East Midlands -97 35 £50,000 -16.67% 16
Wales -4 29 £45,000 +63.64% 14
Northern Ireland -35 11 £75,275 +50.55% 7

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 (4.21%) Apache Spark
2 38 (1.60%) Apache
2 38 (1.60%) IIS
3 37 (1.56%) OpenStack
4 32 (1.35%) CMS
5 24 (1.01%) Confluence
6 23 (0.97%) Cloud Foundry
7 17 (0.72%) Apache Airflow
8 14 (0.59%) NServiceBus
9 12 (0.51%) JBoss
10 11 (0.46%) Microsoft Exchange
11 10 (0.42%) Red Hat Fuse
12 8 (0.34%) SharePoint
13 6 (0.25%) DNN
13 6 (0.25%) EPiServer
13 6 (0.25%) Immediacy CMS
13 6 (0.25%) Kentico
13 6 (0.25%) Sitecore CMS
13 6 (0.25%) Sitefinity
13 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 11 (0.46%) Payment Gateway
3 4 (0.17%) Dynamics CRM
3 4 (0.17%) NetSuite
4 2 (0.084%) Magento
5 1 (0.042%) Shopify
5 1 (0.042%) Towers Watson Igloo
Cloud Services
1 1,178 (49.64%) AWS
2 1,039 (43.78%) Azure
3 189 (7.96%) Serverless
4 165 (6.95%) GCP
5 149 (6.28%) Azure DevOps
6 131 (5.52%) SaaS
7 75 (3.16%) AWS Lambda
8 62 (2.61%) GitHub
9 58 (2.44%) Amazon ECS
10 56 (2.36%) Amazon EKS
11 53 (2.23%) Azure Service Bus
12 46 (1.94%) Cloud Computing
13 34 (1.43%) Azure Cosmos DB
14 33 (1.39%) GitHub Actions
15 29 (1.22%) dbt
16 28 (1.18%) Azure Monitor
17 27 (1.14%) BlazeMeter
18 24 (1.01%) Azure Functions
19 22 (0.93%) Amazon SQS
20 21 (0.88%) Amazon S3
Communications & Networking
1 71 (2.99%) Internet
2 22 (0.93%) DNS
3 21 (0.88%) Broadband
4 20 (0.84%) Firewall
5 18 (0.76%) WAN
6 16 (0.67%) Hyperconnected
7 15 (0.63%) Mobile Broadband
8 10 (0.42%) Ethernet
8 10 (0.42%) Wireless
9 9 (0.38%) HTTP
10 8 (0.34%) Bluetooth
10 8 (0.34%) RS-232
10 8 (0.34%) RS-485
10 8 (0.34%) TCP/IP
11 5 (0.21%) Modbus
11 5 (0.21%) MQTT
11 5 (0.21%) VoIP
11 5 (0.21%) Wi-Fi
11 5 (0.21%) ZigBee
12 3 (0.13%) SSH
Database & Business Intelligence
1 620 (26.13%) SQL Server
2 340 (14.33%) MongoDB
3 323 (13.61%) NoSQL
4 277 (11.67%) Elasticsearch
5 173 (7.29%) Azure SQL Database
6 168 (7.08%) PostgreSQL
7 146 (6.15%) Relational Database
8 113 (4.76%) MySQL
9 85 (3.58%) Apache Hive
9 85 (3.58%) HBase
10 68 (2.87%) Hadoop
11 67 (2.82%) 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 (0.67%) RDBMS
17 16 (0.67%) SQL Server Analysis Services
18 15 (0.63%) Data Warehouse
Development Applications
1 521 (21.96%) Git
2 250 (10.54%) Jenkins
3 117 (4.93%) JUnit
4 116 (4.89%) Selenium
5 107 (4.51%) Cypress.io
6 89 (3.75%) JIRA
7 87 (3.67%) GitLab
8 85 (3.58%) Bitbucket Server
9 78 (3.29%) Jasmine
10 71 (2.99%) WebDriver
11 67 (2.82%) Cucumber
12 65 (2.74%) Karma Test Runner
13 62 (2.61%) Protractor
14 59 (2.49%) Visual Studio
15 46 (1.94%) Maven
16 44 (1.85%) NUnit
17 42 (1.77%) Gradle
18 40 (1.69%) JMeter
19 39 (1.64%) TeamCity
20 34 (1.43%) Postman
General
1 710 (29.92%) Finance
2 451 (19.01%) Social Skills
3 344 (14.50%) Inclusion and Diversity
4 279 (11.76%) Law
5 211 (8.89%) Banking
6 164 (6.91%) Marketing
7 118 (4.97%) Investment Banking
7 118 (4.97%) Public Sector
8 92 (3.88%) Front Office
9 90 (3.79%) Legal
10 72 (3.03%) Analytical Skills
11 63 (2.65%) Retail
12 55 (2.32%) Presentation Skills
13 51 (2.15%) Advertising
14 44 (1.85%) Games
15 39 (1.64%) Retail Banking
16 28 (1.18%) Tech for Good
17 24 (1.01%) Telecoms
18 18 (0.76%) Back Office
19 17 (0.72%) Influencing Skills
Job Titles
1 1,434 (60.43%) Developer
2 609 (25.66%) .NET Developer
3 542 (22.84%) Software Engineer
4 477 (20.10%) Senior
5 312 (13.15%) Lead
6 251 (10.58%) C# Developer
7 245 (10.32%) Senior Developer
8 210 (8.85%) Java Developer
9 208 (8.77%) C# .NET Developer
10 206 (8.68%) Java Engineer
11 170 (7.16%) Java Software Engineer
12 159 (6.70%) Full Stack Developer
13 141 (5.94%) Software Developer
14 117 (4.93%) Senior Software Engineer
15 104 (4.38%) AWS Engineer
16 100 (4.21%) AWS Software Engineer
17 95 (4.00%) Developer/Software Engineer
18 92 (3.88%) PHP Developer
19 89 (3.75%) Lead Developer
20 79 (3.33%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 928 (39.11%) .NET
2 722 (30.43%) React
3 579 (24.40%) .NET Core
4 551 (23.22%) AngularJS
5 518 (21.83%) ASP.NET
6 509 (21.45%) Node.js
7 458 (19.30%) Entity Framework
8 452 (19.05%) CSS
9 449 (18.92%) HTML
10 416 (17.53%) ASP.NET MVC
11 364 (15.34%) .NET Framework
12 363 (15.30%) Vue
13 325 (13.70%) Spring
14 285 (12.01%) REST
15 262 (11.04%) ASP.NET Web API
16 246 (10.37%) RESTful
17 228 (9.61%) Spring Boot
18 214 (9.02%) Web Services
19 201 (8.47%) Kafka
20 200 (8.43%) HTML5
Miscellaneous
1 172 (7.25%) Greenfield Project
2 158 (6.66%) Product Ownership
3 140 (5.90%) Algorithms
4 86 (3.62%) Data Structures
5 85 (3.58%) Cloud Native
6 69 (2.91%) Distributed Systems
6 69 (2.91%) Hedge funds
7 67 (2.82%) Fixed Income
8 64 (2.70%) Derivative
9 58 (2.44%) Foreign Exchange (FX)
10 53 (2.23%) Public Cloud
11 50 (2.11%) Equities
12 44 (1.85%) Onboarding
13 40 (1.69%) PropTech
14 39 (1.64%) Management Information System
15 38 (1.60%) Client/Server
16 34 (1.43%) Private Cloud
17 31 (1.31%) Enterprise Software
18 28 (1.18%) Market Risk
19 25 (1.05%) Digital TV
Operating Systems
1 124 (5.23%) Unix
2 110 (4.64%) 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 6 (0.25%) Embedded Linux
8 5 (0.21%) FreeRTOS
8 5 (0.21%) ThreadX
9 4 (0.17%) CentOS
10 3 (0.13%) FreeBSD
10 3 (0.13%) Mac OS X
11 2 (0.084%) Debian
11 2 (0.084%) Red Hat Enterprise Linux
11 2 (0.084%) Ubuntu
12 1 (0.042%) Solaris
12 1 (0.042%) Windows Server 2012
Processes & Methodologies
1 1,804 (76.02%) Agile
2 847 (35.69%) BDD
3 822 (34.64%) Software Engineering
4 806 (33.97%) Full Stack Development
5 804 (33.88%) CI/CD
6 779 (32.83%) Microservices
7 578 (24.36%) Scrum
8 575 (24.23%) DevOps
9 527 (22.21%) MVC
10 426 (17.95%) Test Automation
11 380 (16.01%) Kanban
12 338 (14.24%) SDLC
13 335 (14.12%) Mentoring
14 319 (13.44%) Continuous Integration
15 302 (12.73%) Problem-Solving
16 249 (10.49%) Unit Testing
17 238 (10.03%) Machine Learning
18 222 (9.36%) SOLID
19 217 (9.14%) Continuous Improvement
20 213 (8.98%) Artificial Intelligence
Programming Languages
1 1,010 (42.56%) JavaScript
2 956 (40.29%) C#
3 801 (33.75%) Java
4 747 (31.48%) SQL
5 543 (22.88%) TypeScript
6 448 (18.88%) Python
7 137 (5.77%) PHP
8 132 (5.56%) Go
9 90 (3.79%) PL/SQL
10 81 (3.41%) Kotlin
11 45 (1.90%) C
12 44 (1.85%) C++
13 40 (1.69%) T-SQL
14 34 (1.43%) Ruby
15 31 (1.31%) Scala
15 31 (1.31%) Shell Script
16 25 (1.05%) Bicep
17 18 (0.76%) Ada
18 17 (0.72%) Rust
19 15 (0.63%) PowerShell
Qualifications
1 177 (7.46%) Degree
2 163 (6.87%) Security Cleared
3 110 (4.64%) SC Cleared
4 61 (2.57%) Computer Science Degree
5 53 (2.23%) DBS Check
6 49 (2.06%) BPSS Clearance
7 34 (1.43%) Azure Certification
8 23 (0.97%) 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%) Numerate Degree
Quality Assurance & Compliance
1 166 (7.00%) 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
1 384 (16.18%) Docker
2 85 (3.58%) HDFS
3 26 (1.10%) Hyper-V
4 25 (1.05%) Active Directory
5 20 (0.84%) Virtual Servers
6 18 (0.76%) VMware NSX
7 9 (0.38%) Firmware
8 2 (0.084%) Apache ZooKeeper
9 1 (0.042%) etcd
9 1 (0.042%) GridGain
9 1 (0.042%) Slurm Workload Manager
9 1 (0.042%) Virtual Desktop
9 1 (0.042%) Virtual Machines
Systems Management
1 302 (12.73%) Kubernetes
2 262 (11.04%) Terraform
3 71 (2.99%) Ansible
4 21 (0.88%) Grafana
5 19 (0.80%) 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
1 596 (25.12%) Microsoft
2 122 (5.14%) Databricks
3 85 (3.58%) Informatica
4 55 (2.32%) Cloudera
5 53 (2.23%) Oracle
6 37 (1.56%) Google
6 37 (1.56%) WSO2
7 26 (1.10%) Facebook
8 24 (1.01%) Atlassian
9 19 (0.80%) Splunk
10 18 (0.76%) VMware
11 16 (0.67%) IBM
12 13 (0.55%) 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 (0.29%) Bloomberg
17 7 (0.29%) ServiceNow
18 6 (0.25%) Dynatrace