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

6 months to
4 May 2024
Same period 2023 Same period 2022
Rank 113 76 43
Rank change year-on-year -37 -33 -6
Permanent jobs citing TDD 2,336 4,241 11,289
As % of all permanent jobs advertised in the UK 2.37% 4.10% 7.21%
As % of the Processes & Methodologies category 2.76% 4.28% 7.55%
Number of salaries quoted 1,797 2,709 4,438
10th Percentile £41,150 £46,850 £43,000
25th Percentile £48,750 £56,250 £52,500
Median annual salary (50th Percentile) £60,000 £70,000 £66,893
Median % change year-on-year -14.29% +4.65% +11.49%
75th Percentile £81,250 £90,000 £85,000
90th Percentile £100,000 £106,250 £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 84,620 99,018 149,592
As % of all permanent jobs advertised in the UK 85.90% 95.62% 95.60%
Number of salaries quoted 59,724 58,165 83,321
10th Percentile £29,000 £34,000 £33,500
25th Percentile £40,000 £45,000 £43,750
Median annual salary (50th Percentile) £55,000 £61,500 £60,000
Median % change year-on-year -10.57% +2.50% +9.09%
75th Percentile £72,500 £81,500 £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 4 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 4 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 -52 1,876 £60,000 -17.24% 518
UK excluding London -28 1,591 £57,500 -8.00% 319
Work from Home -11 1,263 £60,000 -14.29% 441
London -47 662 £82,500 - 207
North of England -6 438 £57,500 -11.54% 102
South East -44 405 £57,500 -4.17% 85
Scotland -6 338 £55,000 -20.80% 15
North West -4 299 £60,000 -7.69% 76
Midlands -69 136 £52,500 -12.50% 38
South West -56 120 £60,000 - 30
East of England +3 112 £60,000 -7.69% 43
West Midlands -28 103 £52,500 -12.50% 22
Yorkshire -6 101 £55,000 -17.29% 16
North East -17 38 £55,000 - 11
East Midlands -80 33 £52,500 -12.50% 16
Wales -9 28 £45,000 +16.15% 11
Northern Ireland -25 14 £75,000 +50.00% 2

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 (4.32%) Apache Spark
2 43 (1.84%) IIS
3 42 (1.80%) OpenStack
4 39 (1.67%) Apache
5 27 (1.16%) CMS
6 24 (1.03%) Confluence
7 18 (0.77%) Cloud Foundry
8 17 (0.73%) Apache Airflow
9 12 (0.51%) JBoss
9 12 (0.51%) NServiceBus
10 11 (0.47%) Red Hat Fuse
11 8 (0.34%) Microsoft Exchange
12 7 (0.30%) SharePoint
13 6 (0.26%) DNN
13 6 (0.26%) EPiServer
13 6 (0.26%) Immediacy CMS
13 6 (0.26%) Kentico
13 6 (0.26%) Sitecore CMS
13 6 (0.26%) Sitefinity
13 6 (0.26%) Umbraco
Applications
1 10 (0.43%) Microsoft PowerPoint
2 3 (0.13%) Adobe XD
2 3 (0.13%) Simulink
3 2 (0.086%) Microsoft Project
4 1 (0.043%) Mathematica
4 1 (0.043%) Microsoft Excel
4 1 (0.043%) Microsoft Office
Business Applications
1 13 (0.56%) SDL Web 8
2 12 (0.51%) Payment Gateway
3 5 (0.21%) Dynamics CRM
4 4 (0.17%) NetSuite
5 2 (0.086%) Magento
5 2 (0.086%) Shopify
6 1 (0.043%) Towers Watson Igloo
Cloud Services
1 1,157 (49.53%) AWS
2 1,013 (43.36%) Azure
3 177 (7.58%) Serverless
4 166 (7.11%) GCP
5 146 (6.25%) Azure DevOps
6 135 (5.78%) SaaS
7 69 (2.95%) GitHub
8 65 (2.78%) Amazon ECS
9 63 (2.70%) Amazon EKS
10 62 (2.65%) AWS Lambda
11 56 (2.40%) Azure Service Bus
12 52 (2.23%) Cloud Computing
13 34 (1.46%) GitHub Actions
14 30 (1.28%) Azure Cosmos DB
14 30 (1.28%) Azure Functions
15 27 (1.16%) Azure Monitor
15 27 (1.16%) BlazeMeter
16 22 (0.94%) Azure API Management
16 22 (0.94%) dbt
17 20 (0.86%) Azure Data Factory
Communications & Networking
1 70 (3.00%) Internet
2 26 (1.11%) WAN
3 20 (0.86%) DNS
4 19 (0.81%) Broadband
5 18 (0.77%) Firewall
6 16 (0.68%) Hyperconnected
7 13 (0.56%) Mobile Broadband
8 11 (0.47%) Wireless
9 9 (0.39%) Ethernet
10 8 (0.34%) Bluetooth
10 8 (0.34%) RS-232
10 8 (0.34%) RS-485
10 8 (0.34%) TCP/IP
11 6 (0.26%) HTTP
12 5 (0.21%) Modbus
12 5 (0.21%) VoIP
12 5 (0.21%) Wi-Fi
12 5 (0.21%) ZigBee
13 4 (0.17%) MQTT
14 3 (0.13%) RS-422
Database & Business Intelligence
1 598 (25.60%) SQL Server
2 332 (14.21%) MongoDB
3 331 (14.17%) NoSQL
4 269 (11.52%) Elasticsearch
5 167 (7.15%) Azure SQL Database
6 164 (7.02%) PostgreSQL
7 142 (6.08%) Relational Database
8 100 (4.28%) MySQL
9 86 (3.68%) Apache Hive
9 86 (3.68%) HBase
10 68 (2.91%) Hadoop
11 67 (2.87%) Big Data
12 40 (1.71%) DynamoDB
13 27 (1.16%) Redis
14 26 (1.11%) Amazon RDS
15 25 (1.07%) Looker
16 17 (0.73%) BigQuery
17 16 (0.68%) SQL Server Analysis Services
18 15 (0.64%) CouchDB
18 15 (0.64%) Data Warehouse
Development Applications
1 499 (21.36%) Git
2 259 (11.09%) Jenkins
3 121 (5.18%) Selenium
4 119 (5.09%) JUnit
5 109 (4.67%) Cypress.io
6 86 (3.68%) Bitbucket Server
7 83 (3.55%) JIRA
8 81 (3.47%) Jasmine
9 77 (3.30%) GitLab
10 73 (3.13%) WebDriver
11 65 (2.78%) Karma Test Runner
12 64 (2.74%) Cucumber
13 62 (2.65%) Protractor
14 53 (2.27%) Visual Studio
15 51 (2.18%) Maven
16 42 (1.80%) Gradle
17 41 (1.76%) NUnit
18 40 (1.71%) TeamCity
19 38 (1.63%) JMeter
20 36 (1.54%) Postman
General
1 715 (30.61%) Finance
2 442 (18.92%) Social Skills
3 333 (14.26%) Inclusion and Diversity
4 276 (11.82%) Law
5 218 (9.33%) Banking
6 160 (6.85%) Marketing
7 122 (5.22%) Investment Banking
8 121 (5.18%) Public Sector
9 94 (4.02%) Front Office
10 91 (3.90%) Legal
11 74 (3.17%) Analytical Skills
12 60 (2.57%) Retail
13 57 (2.44%) Presentation Skills
14 48 (2.05%) Advertising
15 40 (1.71%) Games
16 35 (1.50%) Retail Banking
17 25 (1.07%) Tech for Good
18 21 (0.90%) Telecoms
19 18 (0.77%) Back Office
19 18 (0.77%) Documentation Skills
Job Titles
1 1,409 (60.32%) Developer
2 572 (24.49%) .NET Developer
3 540 (23.12%) Software Engineer
4 487 (20.85%) Senior
5 307 (13.14%) Lead
6 249 (10.66%) Senior Developer
7 232 (9.93%) Java Developer
8 222 (9.50%) C# Developer
9 208 (8.90%) Java Engineer
10 181 (7.75%) C# .NET Developer
11 169 (7.23%) Java Software Engineer
12 150 (6.42%) Full Stack Developer
13 132 (5.65%) Software Developer
14 124 (5.31%) Senior Software Engineer
15 99 (4.24%) Developer/Software Engineer
16 98 (4.20%) AWS Engineer
17 96 (4.11%) Lead Developer
18 95 (4.07%) AWS Software Engineer
19 88 (3.77%) PHP Developer
20 82 (3.51%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 879 (37.63%) .NET
2 711 (30.44%) React
3 555 (23.76%) .NET Core
4 543 (23.24%) AngularJS
5 498 (21.32%) Node.js
6 497 (21.28%) ASP.NET
7 437 (18.71%) Entity Framework
8 435 (18.62%) CSS
8 435 (18.62%) HTML
9 402 (17.21%) ASP.NET MVC
10 356 (15.24%) Vue
11 346 (14.81%) .NET Framework
12 344 (14.73%) Spring
13 281 (12.03%) REST
14 263 (11.26%) ASP.NET Web API
15 250 (10.70%) Spring Boot
16 223 (9.55%) RESTful
17 217 (9.29%) Kafka
18 213 (9.12%) Web Services
19 194 (8.30%) HTML5
Miscellaneous
1 164 (7.02%) Greenfield Project
2 153 (6.55%) Product Ownership
3 136 (5.82%) Algorithms
4 91 (3.90%) Cloud Native
5 87 (3.72%) Data Structures
6 79 (3.38%) Distributed Systems
7 73 (3.13%) Fixed Income
8 67 (2.87%) Hedge funds
9 64 (2.74%) Derivative
10 62 (2.65%) Foreign Exchange (FX)
10 62 (2.65%) Public Cloud
11 54 (2.31%) Equities
12 41 (1.76%) Management Information System
13 40 (1.71%) Onboarding
14 38 (1.63%) PropTech
15 36 (1.54%) Client/Server
16 31 (1.33%) Private Cloud
17 30 (1.28%) Enterprise Software
18 28 (1.20%) Market Risk
19 27 (1.16%) Virtual Team
Operating Systems
1 120 (5.14%) Unix
2 109 (4.67%) Linux
3 36 (1.54%) Apple iOS
4 32 (1.37%) Windows
5 31 (1.33%) Android
6 12 (0.51%) Windows Server 2019
7 9 (0.39%) 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 1,776 (76.03%) Agile
2 829 (35.49%) BDD
3 811 (34.72%) Software Engineering
4 776 (33.22%) CI/CD
5 772 (33.05%) Full Stack Development
6 761 (32.58%) Microservices
7 568 (24.32%) Scrum
8 565 (24.19%) DevOps
9 503 (21.53%) MVC
10 442 (18.92%) Test Automation
11 377 (16.14%) Kanban
12 337 (14.43%) SDLC
13 329 (14.08%) Mentoring
14 314 (13.44%) Continuous Integration
15 296 (12.67%) Problem-Solving
16 236 (10.10%) Machine Learning
17 219 (9.38%) Unit Testing
18 218 (9.33%) Continuous Improvement
19 215 (9.20%) SOLID
20 214 (9.16%) Artificial Intelligence
Programming Languages
1 992 (42.47%) JavaScript
2 917 (39.26%) C#
3 820 (35.10%) Java
4 736 (31.51%) SQL
5 539 (23.07%) TypeScript
6 411 (17.59%) Python
7 129 (5.52%) PHP
8 123 (5.27%) Go
9 95 (4.07%) PL/SQL
10 76 (3.25%) Kotlin
11 43 (1.84%) C
12 42 (1.80%) C++
13 40 (1.71%) T-SQL
14 33 (1.41%) Ruby
15 32 (1.37%) Shell Script
16 30 (1.28%) Scala
17 25 (1.07%) Bicep
18 18 (0.77%) Ada
18 18 (0.77%) PowerShell
19 14 (0.60%) Embedded C
Qualifications
1 180 (7.71%) Degree
2 163 (6.98%) Security Cleared
3 106 (4.54%) SC Cleared
4 64 (2.74%) Computer Science Degree
5 46 (1.97%) BPSS Clearance
6 42 (1.80%) DBS Check
7 34 (1.46%) Azure Certification
8 25 (1.07%) AWS Certification
9 10 (0.43%) Master's Degree
10 5 (0.21%) PhD
11 4 (0.17%) CIPD
12 3 (0.13%) DV Cleared
12 3 (0.13%) Numerate Degree
12 3 (0.13%) PMI Certification
13 2 (0.086%) AWS Certified Developer
13 2 (0.086%) CISSP
13 2 (0.086%) ISTQB
13 2 (0.086%) Microsoft Certification
13 2 (0.086%) PMP
13 2 (0.086%) SAFe Agilist
Quality Assurance & Compliance
1 162 (6.93%) QA
2 41 (1.76%) Accessibility
3 20 (0.86%) PMO
4 11 (0.47%) GDPR
5 6 (0.26%) WCAG
6 4 (0.17%) DICOM
6 4 (0.17%) HL7
6 4 (0.17%) ISO 13485
6 4 (0.17%) ISO/IEC 27001
7 3 (0.13%) Def Stans
7 3 (0.13%) ISO 9000
7 3 (0.13%) MISRA
7 3 (0.13%) PCI DSS
7 3 (0.13%) PSD2
8 2 (0.086%) Data Quality
8 2 (0.086%) GRC
8 2 (0.086%) ISO 20022
8 2 (0.086%) SEPA
System Software
1 390 (16.70%) Docker
2 86 (3.68%) HDFS
3 31 (1.33%) Hyper-V
4 26 (1.11%) Active Directory
4 26 (1.11%) VMware NSX
5 18 (0.77%) Virtual Servers
6 8 (0.34%) Firmware
7 2 (0.086%) Apache ZooKeeper
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 (13.48%) Kubernetes
2 266 (11.39%) Terraform
3 77 (3.30%) Ansible
4 19 (0.81%) Grafana
5 16 (0.68%) Kibana
6 9 (0.39%) Prometheus
7 7 (0.30%) Progress Chef
7 7 (0.30%) Puppet
8 5 (0.21%) Argo
8 5 (0.21%) Control-M
9 2 (0.086%) Istio
9 2 (0.086%) linkerd
10 1 (0.043%) Active Directory Federation Services
10 1 (0.043%) Enterprise Manager Cloud Control
10 1 (0.043%) Hadoop YARN
10 1 (0.043%) HAProxy
10 1 (0.043%) Kustomize
10 1 (0.043%) Nagios
10 1 (0.043%) Oracle Enterprise Manager
10 1 (0.043%) Red Hat Spacewalk
Vendors
1 593 (25.39%) Microsoft
2 126 (5.39%) Databricks
3 86 (3.68%) Informatica
4 56 (2.40%) Cloudera
5 54 (2.31%) Oracle
6 42 (1.80%) WSO2
7 33 (1.41%) Google
8 27 (1.16%) Atlassian
9 26 (1.11%) Facebook
9 26 (1.11%) VMware
10 20 (0.86%) Splunk
11 17 (0.73%) IBM
11 17 (0.73%) Salesforce
12 10 (0.43%) Adobe
12 10 (0.43%) Red Hat
12 10 (0.43%) Teradata
13 9 (0.39%) Dell
13 9 (0.39%) TOWER Software
14 7 (0.30%) ServiceNow
15 6 (0.26%) Sitecore