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

6 months to
18 May 2024
Same period 2023 Same period 2022
Rank 115 76 43
Rank change year-on-year -39 -33 -5
Permanent jobs citing TDD 2,368 4,060 11,808
As % of all permanent jobs advertised in the UK 2.37% 4.09% 7.35%
As % of the Processes & Methodologies category 2.78% 4.28% 7.67%
Number of salaries quoted 1,813 2,586 4,352
10th Percentile £41,250 £46,250 £43,500
25th Percentile £48,750 £56,250 £52,500
Median annual salary (50th Percentile) £60,000 £70,000 £65,000
Median % change year-on-year -14.29% +7.69% +8.33%
75th Percentile £80,000 £90,000 £85,000
90th Percentile £99,750 £107,500 £100,000
UK excluding London median annual salary £57,500 £62,500 £57,500
% change year-on-year -8.00% +8.70% +9.52%

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 85,135 94,784 153,905
As % of all permanent jobs advertised in the UK 85.22% 95.58% 95.76%
Number of salaries quoted 59,872 55,911 82,488
10th Percentile £29,089 £34,000 £33,635
25th Percentile £40,000 £45,000 £43,750
Median annual salary (50th Percentile) £55,000 £61,180 £60,000
Median % change year-on-year -10.10% +1.97% +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 18 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 18 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 -49 1,911 £60,000 -15.00% 579
UK excluding London -27 1,609 £57,500 -8.00% 386
Work from Home -7 1,295 £60,000 -14.29% 515
London -41 672 £80,000 -0.37% 262
North of England -3 449 £57,500 -11.54% 117
South East -35 419 £57,500 -6.12% 107
Scotland -6 334 £56,318 -18.91% 25
North West +1 304 £60,000 -7.69% 86
Midlands -87 133 £52,500 -12.50% 52
South West -58 118 £60,000 - 39
East of England -4 117 £60,000 -7.69% 31
Yorkshire +3 106 £55,000 -16.03% 23
West Midlands -31 101 £52,500 -12.50% 34
North East -16 39 £55,000 +2.33% 9
East Midlands -78 32 £52,500 -12.50% 18
Wales -14 28 £45,000 +16.15% 18
Northern Ireland -32 11 £75,200 +50.40% 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
1 101 (4.27%) Apache Spark
2 41 (1.73%) OpenStack
3 39 (1.65%) Apache
4 38 (1.60%) IIS
5 28 (1.18%) CMS
6 24 (1.01%) Confluence
7 20 (0.84%) Cloud Foundry
8 17 (0.72%) Apache Airflow
9 14 (0.59%) NServiceBus
10 11 (0.46%) JBoss
11 10 (0.42%) 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 14 (0.59%) 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 (49.54%) AWS
2 1,032 (43.58%) Azure
3 191 (8.07%) Serverless
4 173 (7.31%) GCP
5 144 (6.08%) Azure DevOps
6 138 (5.83%) SaaS
7 75 (3.17%) AWS Lambda
8 68 (2.87%) GitHub
9 63 (2.66%) Amazon ECS
10 60 (2.53%) Amazon EKS
11 53 (2.24%) Azure Service Bus
12 47 (1.98%) Cloud Computing
13 34 (1.44%) GitHub Actions
14 31 (1.31%) Azure Cosmos DB
15 28 (1.18%) Azure Functions
16 27 (1.14%) BlazeMeter
17 26 (1.10%) Azure Monitor
18 22 (0.93%) dbt
19 21 (0.89%) Amazon SQS
20 20 (0.84%) Amazon S3
Communications & Networking
1 70 (2.96%) Internet
2 21 (0.89%) Broadband
3 20 (0.84%) DNS
3 20 (0.84%) WAN
4 18 (0.76%) Firewall
5 16 (0.68%) Hyperconnected
6 15 (0.63%) Mobile Broadband
7 11 (0.46%) Wireless
8 10 (0.42%) Ethernet
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%) VoIP
11 5 (0.21%) Wi-Fi
11 5 (0.21%) ZigBee
12 4 (0.17%) MQTT
13 3 (0.13%) RS-422
Database & Business Intelligence
1 610 (25.76%) SQL Server
2 340 (14.36%) MongoDB
3 331 (13.98%) NoSQL
4 276 (11.66%) Elasticsearch
5 172 (7.26%) Azure SQL Database
6 168 (7.09%) PostgreSQL
7 147 (6.21%) Relational Database
8 108 (4.56%) MySQL
9 86 (3.63%) Apache Hive
9 86 (3.63%) HBase
10 69 (2.91%) Hadoop
11 68 (2.87%) Big Data
12 50 (2.11%) DynamoDB
13 38 (1.60%) Amazon RDS
14 28 (1.18%) Redis
15 25 (1.06%) 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
1 524 (22.13%) Git
2 260 (10.98%) Jenkins
3 121 (5.11%) Selenium
4 115 (4.86%) JUnit
5 107 (4.52%) Cypress.io
6 86 (3.63%) Bitbucket Server
6 86 (3.63%) GitLab
6 86 (3.63%) JIRA
7 80 (3.38%) Jasmine
8 71 (3.00%) WebDriver
9 66 (2.79%) Cucumber
10 65 (2.74%) Karma Test Runner
11 62 (2.62%) Protractor
12 55 (2.32%) Visual Studio
13 50 (2.11%) Maven
14 42 (1.77%) Gradle
15 40 (1.69%) NUnit
16 38 (1.60%) JMeter
17 37 (1.56%) TeamCity
18 35 (1.48%) Postman
General
1 720 (30.41%) Finance
2 454 (19.17%) Social Skills
3 338 (14.27%) Inclusion and Diversity
4 281 (11.87%) Law
5 214 (9.04%) Banking
6 162 (6.84%) Marketing
7 122 (5.15%) Public Sector
8 119 (5.03%) Investment Banking
9 94 (3.97%) Front Office
10 89 (3.76%) Legal
11 73 (3.08%) Analytical Skills
12 61 (2.58%) Retail
13 56 (2.36%) Presentation Skills
14 51 (2.15%) Advertising
15 42 (1.77%) Games
16 35 (1.48%) Retail Banking
17 28 (1.18%) Tech for Good
18 23 (0.97%) Telecoms
19 18 (0.76%) Back Office
19 18 (0.76%) Documentation Skills
Job Titles
1 1,423 (60.09%) Developer
2 594 (25.08%) .NET Developer
3 557 (23.52%) Software Engineer
4 487 (20.57%) Senior
5 306 (12.92%) Lead
6 246 (10.39%) Senior Developer
7 235 (9.92%) C# Developer
8 220 (9.29%) Java Developer
9 209 (8.83%) Java Engineer
10 194 (8.19%) C# .NET Developer
11 171 (7.22%) Java Software Engineer
12 152 (6.42%) Full Stack Developer
13 136 (5.74%) Software Developer
14 125 (5.28%) Senior Software Engineer
15 103 (4.35%) AWS Engineer
16 99 (4.18%) AWS Software Engineer
17 97 (4.10%) Developer/Software Engineer
18 91 (3.84%) Lead Developer
18 91 (3.84%) PHP Developer
19 82 (3.46%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 908 (38.34%) .NET
2 728 (30.74%) React
3 571 (24.11%) .NET Core
4 553 (23.35%) AngularJS
5 509 (21.49%) ASP.NET
5 509 (21.49%) Node.js
6 450 (19.00%) Entity Framework
7 446 (18.83%) CSS
7 446 (18.83%) HTML
8 410 (17.31%) ASP.NET MVC
9 364 (15.37%) Vue
10 353 (14.91%) .NET Framework
11 339 (14.32%) Spring
12 289 (12.20%) REST
13 267 (11.28%) ASP.NET Web API
14 241 (10.18%) Spring Boot
15 239 (10.09%) RESTful
16 215 (9.08%) Web Services
17 210 (8.87%) Kafka
18 201 (8.49%) HTML5
Miscellaneous
1 170 (7.18%) Greenfield Project
2 159 (6.71%) Product Ownership
3 138 (5.83%) Algorithms
4 92 (3.89%) Cloud Native
5 86 (3.63%) Data Structures
6 72 (3.04%) Distributed Systems
7 70 (2.96%) Fixed Income
8 69 (2.91%) Hedge funds
9 65 (2.74%) Derivative
10 60 (2.53%) Foreign Exchange (FX)
11 58 (2.45%) Public Cloud
12 52 (2.20%) Equities
13 43 (1.82%) Onboarding
14 40 (1.69%) Management Information System
14 40 (1.69%) PropTech
15 37 (1.56%) Client/Server
16 36 (1.52%) Private Cloud
17 30 (1.27%) Enterprise Software
18 28 (1.18%) Market Risk
19 25 (1.06%) Virtual Team
Operating Systems
1 122 (5.15%) Unix
2 111 (4.69%) Linux
3 39 (1.65%) Apple iOS
4 33 (1.39%) Android
5 31 (1.31%) Windows
6 13 (0.55%) Windows Server 2019
7 7 (0.30%) Mac OS
8 5 (0.21%) 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 1,811 (76.48%) Agile
2 849 (35.85%) BDD
3 835 (35.26%) Software Engineering
4 797 (33.66%) Full Stack Development
5 789 (33.32%) CI/CD
6 778 (32.85%) Microservices
7 581 (24.54%) Scrum
8 569 (24.03%) DevOps
9 517 (21.83%) MVC
10 443 (18.71%) Test Automation
11 385 (16.26%) Kanban
12 337 (14.23%) SDLC
13 333 (14.06%) Mentoring
14 317 (13.39%) Continuous Integration
15 303 (12.80%) Problem-Solving
16 237 (10.01%) Machine Learning
17 236 (9.97%) Unit Testing
18 218 (9.21%) Continuous Improvement
19 215 (9.08%) SOLID
20 212 (8.95%) Artificial Intelligence
Programming Languages
1 1,009 (42.61%) JavaScript
2 942 (39.78%) C#
3 815 (34.42%) Java
4 742 (31.33%) SQL
5 551 (23.27%) TypeScript
6 432 (18.24%) Python
7 138 (5.83%) PHP
8 130 (5.49%) Go
9 94 (3.97%) PL/SQL
10 78 (3.29%) Kotlin
11 44 (1.86%) C
12 43 (1.82%) C++
13 37 (1.56%) T-SQL
14 32 (1.35%) Shell Script
15 31 (1.31%) Ruby
16 29 (1.22%) Scala
17 25 (1.06%) Bicep
18 17 (0.72%) Ada
19 16 (0.68%) Rust
20 15 (0.63%) PowerShell
Qualifications
1 177 (7.47%) Degree
2 158 (6.67%) Security Cleared
3 105 (4.43%) SC Cleared
4 63 (2.66%) Computer Science Degree
5 53 (2.24%) DBS Check
6 48 (2.03%) BPSS Clearance
7 34 (1.44%) Azure Certification
8 25 (1.06%) AWS Certification
9 9 (0.38%) Master's Degree
10 5 (0.21%) CIPD
10 5 (0.21%) PhD
11 3 (0.13%) DV Cleared
11 3 (0.13%) PMI Certification
12 2 (0.084%) CISSP
12 2 (0.084%) ISTQB
12 2 (0.084%) Microsoft Certification
12 2 (0.084%) PMP
12 2 (0.084%) SAFe Agilist
13 1 (0.042%) AWS Certified Developer
13 1 (0.042%) Numerate Degree
Quality Assurance & Compliance
1 168 (7.09%) QA
2 45 (1.90%) Accessibility
3 20 (0.84%) 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%) Def Stans
7 3 (0.13%) ISO/IEC 27001
7 3 (0.13%) MISRA
7 3 (0.13%) PSD2
8 2 (0.084%) Data Quality
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%) ISO 20022
System Software
1 392 (16.55%) Docker
2 86 (3.63%) HDFS
3 31 (1.31%) Hyper-V
4 26 (1.10%) Active Directory
5 20 (0.84%) VMware NSX
6 18 (0.76%) Virtual Servers
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
1 310 (13.09%) Kubernetes
2 265 (11.19%) Terraform
3 77 (3.25%) Ansible
4 20 (0.84%) Grafana
5 17 (0.72%) Kibana
6 9 (0.38%) Prometheus
7 7 (0.30%) Progress Chef
7 7 (0.30%) Puppet
8 5 (0.21%) Argo
9 3 (0.13%) Control-M
10 2 (0.084%) Istio
10 2 (0.084%) Kustomize
10 2 (0.084%) linkerd
11 1 (0.042%) Active Directory Federation Services
11 1 (0.042%) Consul
11 1 (0.042%) Hadoop YARN
11 1 (0.042%) HAProxy
11 1 (0.042%) Nagios
11 1 (0.042%) Red Hat Spacewalk
Vendors
1 598 (25.25%) Microsoft
2 124 (5.24%) Databricks
3 86 (3.63%) Informatica
4 56 (2.36%) Cloudera
5 55 (2.32%) Oracle
6 41 (1.73%) WSO2
7 39 (1.65%) Google
8 26 (1.10%) Facebook
9 25 (1.06%) Atlassian
10 20 (0.84%) VMware
11 18 (0.76%) Splunk
12 17 (0.72%) IBM
12 17 (0.72%) Salesforce
13 10 (0.42%) Red Hat
13 10 (0.42%) Teradata
14 9 (0.38%) Adobe
14 9 (0.38%) TOWER Software
15 7 (0.30%) Dell
15 7 (0.30%) ServiceNow
16 6 (0.25%) YouTube