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

6 months to
9 May 2024
Same period 2023 Same period 2022
Rank 116 76 43
Rank change year-on-year -40 -33 -5
Permanent jobs citing TDD 2,351 4,143 11,427
As % of all permanent jobs advertised in the UK 2.37% 4.09% 7.28%
As % of the Processes & Methodologies category 2.77% 4.28% 7.61%
Number of salaries quoted 1,809 2,647 4,380
10th Percentile £40,000 £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 £80,000 £90,000 £85,000
90th Percentile £100,000 £106,750 £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 84,809 96,894 150,102
As % of all permanent jobs advertised in the UK 85.57% 95.61% 95.67%
Number of salaries quoted 59,843 56,945 82,179
10th Percentile £29,000 £34,000 £33,500
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 £96,550
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 9 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 9 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 -53 1,891 £60,000 -17.24% 487
UK excluding London -26 1,603 £57,500 -8.00% 298
Work from Home -10 1,276 £60,000 -14.29% 439
London -44 665 £82,500 - 202
North of England 0 445 £57,500 -11.54% 96
South East -44 411 £57,500 -4.17% 72
Scotland -5 339 £55,659 -19.85% 18
North West -6 304 £60,000 -7.69% 67
Midlands -78 136 £52,500 -12.50% 36
South West -58 118 £60,000 - 35
East of England +4 113 £60,000 -7.69% 35
West Midlands -33 103 £52,500 -12.50% 20
Yorkshire +5 102 £55,000 -17.29% 21
North East -15 39 £55,000 +2.33% 9
East Midlands -82 33 £52,500 -14.29% 16
Wales -17 28 £45,000 +16.15% 11
Northern Ireland -26 13 £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 (4.30%) Apache Spark
2 44 (1.87%) IIS
3 42 (1.79%) OpenStack
4 39 (1.66%) Apache
5 27 (1.15%) CMS
6 22 (0.94%) Confluence
7 18 (0.77%) Cloud Foundry
8 17 (0.72%) Apache Airflow
9 12 (0.51%) JBoss
9 12 (0.51%) NServiceBus
10 11 (0.47%) Red Hat Fuse
11 9 (0.38%) Microsoft Exchange
12 8 (0.34%) 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 (0.085%) Microsoft Project
4 1 (0.043%) Mathematica
4 1 (0.043%) Microsoft Excel
4 1 (0.043%) Microsoft Office
Business Applications
1 13 (0.55%) SDL Web 8
2 12 (0.51%) Payment Gateway
3 4 (0.17%) Dynamics CRM
3 4 (0.17%) NetSuite
4 2 (0.085%) Magento
4 2 (0.085%) Shopify
5 1 (0.043%) Towers Watson Igloo
Cloud Services
1 1,162 (49.43%) AWS
2 1,026 (43.64%) Azure
3 178 (7.57%) Serverless
4 170 (7.23%) GCP
5 147 (6.25%) Azure DevOps
6 138 (5.87%) SaaS
7 69 (2.93%) GitHub
8 64 (2.72%) Amazon ECS
8 64 (2.72%) AWS Lambda
9 61 (2.59%) Amazon EKS
10 54 (2.30%) Azure Service Bus
11 52 (2.21%) Cloud Computing
12 33 (1.40%) GitHub Actions
13 29 (1.23%) Azure Cosmos DB
13 29 (1.23%) Azure Functions
14 27 (1.15%) Azure Monitor
14 27 (1.15%) BlazeMeter
15 22 (0.94%) dbt
16 21 (0.89%) Azure API Management
17 20 (0.85%) Azure Data Factory
Communications & Networking
1 69 (2.93%) Internet
2 26 (1.11%) WAN
3 20 (0.85%) Broadband
3 20 (0.85%) DNS
4 18 (0.77%) Firewall
5 16 (0.68%) Hyperconnected
6 14 (0.60%) Mobile Broadband
7 11 (0.47%) Wireless
8 9 (0.38%) Ethernet
9 8 (0.34%) Bluetooth
9 8 (0.34%) RS-232
9 8 (0.34%) RS-485
9 8 (0.34%) TCP/IP
10 6 (0.26%) HTTP
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 (25.95%) SQL Server
2 336 (14.29%) MongoDB
3 330 (14.04%) NoSQL
4 274 (11.65%) Elasticsearch
5 171 (7.27%) Azure SQL Database
6 166 (7.06%) PostgreSQL
7 142 (6.04%) Relational Database
8 101 (4.30%) MySQL
9 86 (3.66%) Apache Hive
9 86 (3.66%) HBase
10 69 (2.93%) Hadoop
11 68 (2.89%) Big Data
12 39 (1.66%) DynamoDB
13 28 (1.19%) Redis
14 26 (1.11%) Amazon RDS
15 25 (1.06%) Looker
16 17 (0.72%) BigQuery
17 16 (0.68%) SQL Server Analysis Services
18 15 (0.64%) CouchDB
18 15 (0.64%) Data Warehouse
Development Applications
1 504 (21.44%) Git
2 258 (10.97%) Jenkins
3 119 (5.06%) Selenium
4 117 (4.98%) JUnit
5 107 (4.55%) Cypress.io
6 86 (3.66%) Bitbucket Server
7 83 (3.53%) JIRA
8 81 (3.45%) Jasmine
9 76 (3.23%) GitLab
10 72 (3.06%) WebDriver
11 65 (2.76%) Karma Test Runner
12 64 (2.72%) Cucumber
13 62 (2.64%) Protractor
14 54 (2.30%) Visual Studio
15 51 (2.17%) Maven
16 43 (1.83%) Gradle
17 39 (1.66%) NUnit
18 38 (1.62%) JMeter
18 38 (1.62%) TeamCity
19 35 (1.49%) Postman
General
1 719 (30.58%) Finance
2 442 (18.80%) Social Skills
3 336 (14.29%) Inclusion and Diversity
4 280 (11.91%) Law
5 217 (9.23%) Banking
6 161 (6.85%) Marketing
7 122 (5.19%) Investment Banking
8 120 (5.10%) Public Sector
9 96 (4.08%) Front Office
10 90 (3.83%) Legal
11 73 (3.11%) Analytical Skills
12 61 (2.59%) Retail
13 57 (2.42%) Presentation Skills
14 50 (2.13%) Advertising
15 40 (1.70%) Games
16 35 (1.49%) Retail Banking
17 26 (1.11%) Tech for Good
18 22 (0.94%) Telecoms
19 18 (0.77%) Back Office
19 18 (0.77%) Documentation Skills
Job Titles
1 1,417 (60.27%) Developer
2 584 (24.84%) .NET Developer
3 546 (23.22%) Software Engineer
4 485 (20.63%) Senior
5 304 (12.93%) Lead
6 242 (10.29%) Senior Developer
7 229 (9.74%) C# Developer
8 226 (9.61%) Java Developer
9 208 (8.85%) Java Engineer
10 187 (7.95%) C# .NET Developer
11 169 (7.19%) Java Software Engineer
12 149 (6.34%) Full Stack Developer
13 134 (5.70%) Software Developer
14 127 (5.40%) Senior Software Engineer
15 98 (4.17%) AWS Engineer
15 98 (4.17%) Developer/Software Engineer
16 95 (4.04%) AWS Software Engineer
17 93 (3.96%) Lead Developer
18 87 (3.70%) PHP Developer
19 82 (3.49%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 897 (38.15%) .NET
2 721 (30.67%) React
3 568 (24.16%) .NET Core
4 550 (23.39%) AngularJS
5 505 (21.48%) Node.js
6 504 (21.44%) ASP.NET
7 445 (18.93%) Entity Framework
8 441 (18.76%) CSS
8 441 (18.76%) HTML
9 410 (17.44%) ASP.NET MVC
10 360 (15.31%) Vue
11 352 (14.97%) .NET Framework
12 340 (14.46%) Spring
13 286 (12.17%) REST
14 267 (11.36%) ASP.NET Web API
15 245 (10.42%) Spring Boot
16 226 (9.61%) RESTful
17 214 (9.10%) Web Services
18 211 (8.97%) Kafka
19 198 (8.42%) HTML5
Miscellaneous
1 168 (7.15%) Greenfield Project
2 156 (6.64%) Product Ownership
3 136 (5.78%) Algorithms
4 91 (3.87%) Cloud Native
5 87 (3.70%) Data Structures
6 79 (3.36%) Distributed Systems
7 72 (3.06%) Fixed Income
8 69 (2.93%) Hedge funds
9 66 (2.81%) Derivative
10 64 (2.72%) Public Cloud
11 61 (2.59%) Foreign Exchange (FX)
12 53 (2.25%) Equities
13 41 (1.74%) Management Information System
14 40 (1.70%) Onboarding
15 39 (1.66%) PropTech
16 37 (1.57%) Client/Server
17 35 (1.49%) Private Cloud
18 29 (1.23%) Enterprise Software
19 28 (1.19%) Market Risk
20 27 (1.15%) Virtual Team
Operating Systems
1 121 (5.15%) Unix
2 111 (4.72%) Linux
3 37 (1.57%) Apple iOS
4 33 (1.40%) Windows
5 31 (1.32%) Android
6 13 (0.55%) 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 4 (0.17%) CentOS
10 3 (0.13%) FreeBSD
10 3 (0.13%) Mac OS X
11 2 (0.085%) Debian
11 2 (0.085%) Red Hat Enterprise Linux
11 2 (0.085%) Ubuntu
12 1 (0.043%) Solaris
12 1 (0.043%) Windows Server 2012
Processes & Methodologies
1 1,794 (76.31%) Agile
2 840 (35.73%) BDD
3 815 (34.67%) Software Engineering
4 780 (33.18%) Full Stack Development
5 777 (33.05%) CI/CD
6 770 (32.75%) Microservices
7 577 (24.54%) Scrum
8 565 (24.03%) DevOps
9 510 (21.69%) MVC
10 446 (18.97%) Test Automation
11 383 (16.29%) Kanban
12 338 (14.38%) SDLC
13 330 (14.04%) Mentoring
14 315 (13.40%) Continuous Integration
15 296 (12.59%) Problem-Solving
16 237 (10.08%) Machine Learning
17 224 (9.53%) Unit Testing
18 216 (9.19%) Continuous Improvement
18 216 (9.19%) SOLID
19 213 (9.06%) Artificial Intelligence
Programming Languages
1 1,000 (42.54%) JavaScript
2 931 (39.60%) C#
3 818 (34.79%) Java
4 744 (31.65%) SQL
5 549 (23.35%) TypeScript
6 417 (17.74%) Python
7 130 (5.53%) PHP
8 125 (5.32%) Go
9 95 (4.04%) PL/SQL
10 79 (3.36%) Kotlin
11 42 (1.79%) C
12 41 (1.74%) C++
13 39 (1.66%) T-SQL
14 33 (1.40%) Ruby
15 32 (1.36%) Shell Script
16 29 (1.23%) Scala
17 25 (1.06%) Bicep
18 17 (0.72%) Ada
18 17 (0.72%) PowerShell
19 14 (0.60%) Embedded C
Qualifications
1 175 (7.44%) Degree
2 161 (6.85%) Security Cleared
3 104 (4.42%) SC Cleared
4 62 (2.64%) Computer Science Degree
5 45 (1.91%) BPSS Clearance
6 42 (1.79%) DBS Check
7 34 (1.45%) Azure Certification
8 25 (1.06%) AWS Certification
9 9 (0.38%) Master's Degree
10 5 (0.21%) PhD
11 4 (0.17%) CIPD
12 3 (0.13%) DV Cleared
12 3 (0.13%) PMI Certification
13 2 (0.085%) CISSP
13 2 (0.085%) ISTQB
13 2 (0.085%) Microsoft Certification
13 2 (0.085%) Numerate Degree
13 2 (0.085%) PMP
13 2 (0.085%) SAFe Agilist
14 1 (0.043%) AWS Certified Developer
Quality Assurance & Compliance
1 166 (7.06%) QA
2 40 (1.70%) Accessibility
3 20 (0.85%) 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 (0.085%) Data Quality
8 2 (0.085%) GRC
8 2 (0.085%) SEPA
9 1 (0.043%) ISO 20022
System Software
1 388 (16.50%) Docker
2 86 (3.66%) HDFS
3 31 (1.32%) 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 (0.085%) 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
1 311 (13.23%) Kubernetes
2 266 (11.31%) Terraform
3 78 (3.32%) Ansible
4 19 (0.81%) Grafana
5 16 (0.68%) Kibana
6 9 (0.38%) Prometheus
7 7 (0.30%) Progress Chef
7 7 (0.30%) Puppet
8 5 (0.21%) Argo
9 4 (0.17%) Control-M
10 2 (0.085%) Istio
10 2 (0.085%) Kustomize
10 2 (0.085%) linkerd
11 1 (0.043%) Active Directory Federation Services
11 1 (0.043%) Enterprise Manager Cloud Control
11 1 (0.043%) Hadoop YARN
11 1 (0.043%) HAProxy
11 1 (0.043%) Nagios
11 1 (0.043%) Oracle Enterprise Manager
11 1 (0.043%) Red Hat Spacewalk
Vendors
1 601 (25.56%) Microsoft
2 126 (5.36%) Databricks
3 86 (3.66%) Informatica
4 56 (2.38%) Cloudera
5 54 (2.30%) Oracle
6 42 (1.79%) WSO2
7 37 (1.57%) Google
8 26 (1.11%) Facebook
8 26 (1.11%) VMware
9 25 (1.06%) Atlassian
10 20 (0.85%) Splunk
11 17 (0.72%) IBM
11 17 (0.72%) Salesforce
12 10 (0.43%) Adobe
12 10 (0.43%) Red Hat
12 10 (0.43%) Teradata
13 9 (0.38%) Dell
13 9 (0.38%) TOWER Software
14 7 (0.30%) ServiceNow
15 6 (0.26%) Sitecore