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

6 months to
2 May 2024
Same period 2023 Same period 2022
Rank 113 75 43
Rank change year-on-year -38 -32 -5
Permanent jobs citing TDD 2,347 4,249 11,276
As % of all permanent jobs advertised in the UK 2.38% 4.09% 7.22%
As % of the Processes & Methodologies category 2.77% 4.28% 7.55%
Number of salaries quoted 1,804 2,709 4,444
10th Percentile £41,250 £47,000 £43,250
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 £81,250 £90,000 £85,000
90th Percentile £100,000 £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 84,683 99,249 149,267
As % of all permanent jobs advertised in the UK 85.94% 95.61% 95.60%
Number of salaries quoted 59,831 58,284 83,142
10th Percentile £29,000 £34,182 £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 £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 2 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 2 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 1,886 £60,000 -17.24% 516
UK excluding London -25 1,597 £57,500 -8.00% 322
Work from Home -12 1,269 £60,000 -14.29% 432
London -44 665 £82,500 - 207
North of England -4 440 £57,500 -11.54% 104
South East -42 407 £57,500 -4.17% 84
Scotland -3 339 £55,000 -20.80% 17
North West -3 300 £60,000 -7.69% 81
Midlands -76 137 £52,500 -12.50% 36
South West -62 120 £60,000 - 34
East of England -2 112 £60,000 -7.69% 41
West Midlands -24 104 £52,500 -12.50% 20
Yorkshire +3 102 £55,000 -17.29% 14
North East -18 38 £55,000 +2.33% 11
East Midlands -87 33 £52,500 -12.50% 16
Wales -9 28 £45,000 +16.15% 13
Northern Ireland -18 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 (4.30%) Apache Spark
2 43 (1.83%) IIS
3 42 (1.79%) OpenStack
4 39 (1.66%) Apache
5 27 (1.15%) CMS
6 24 (1.02%) 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 8 (0.34%) Microsoft Exchange
11 8 (0.34%) SharePoint
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 Excel
4 1 (0.043%) Microsoft Office
Business Applications
1 13 (0.55%) SDL Web 8
2 12 (0.51%) Payment Gateway
3 6 (0.26%) Dynamics CRM
4 4 (0.17%) NetSuite
5 2 (0.085%) Magento
5 2 (0.085%) Shopify
6 1 (0.043%) Towers Watson Igloo
Cloud Services
1 1,159 (49.38%) AWS
2 1,019 (43.42%) Azure
3 181 (7.71%) Serverless
4 166 (7.07%) GCP
5 151 (6.43%) Azure DevOps
6 136 (5.79%) SaaS
7 71 (3.03%) GitHub
8 65 (2.77%) Amazon ECS
9 64 (2.73%) AWS Lambda
10 63 (2.68%) Amazon EKS
11 57 (2.43%) Azure Service Bus
12 52 (2.22%) Cloud Computing
13 34 (1.45%) GitHub Actions
14 32 (1.36%) Azure Functions
15 30 (1.28%) Azure Cosmos DB
16 27 (1.15%) Azure Monitor
16 27 (1.15%) BlazeMeter
17 23 (0.98%) Azure API Management
18 22 (0.94%) dbt
19 21 (0.89%) Azure Data Factory
Communications & Networking
1 71 (3.03%) Internet
2 26 (1.11%) WAN
3 21 (0.89%) DNS
4 19 (0.81%) Broadband
4 19 (0.81%) Firewall
5 16 (0.68%) Hyperconnected
6 13 (0.55%) 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
1 600 (25.56%) SQL Server
2 332 (14.15%) NoSQL
3 331 (14.10%) MongoDB
4 269 (11.46%) Elasticsearch
5 167 (7.12%) Azure SQL Database
6 165 (7.03%) PostgreSQL
7 142 (6.05%) Relational Database
8 99 (4.22%) MySQL
9 86 (3.66%) Apache Hive
9 86 (3.66%) HBase
10 68 (2.90%) Hadoop
11 67 (2.85%) Big Data
12 41 (1.75%) DynamoDB
13 28 (1.19%) Redis
14 26 (1.11%) Amazon RDS
15 25 (1.07%) 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
1 500 (21.30%) Git
2 259 (11.04%) Jenkins
3 120 (5.11%) JUnit
3 120 (5.11%) Selenium
4 110 (4.69%) Cypress.io
5 86 (3.66%) Bitbucket Server
6 83 (3.54%) JIRA
7 81 (3.45%) Jasmine
8 77 (3.28%) GitLab
9 73 (3.11%) WebDriver
10 65 (2.77%) Karma Test Runner
11 64 (2.73%) Cucumber
12 62 (2.64%) Protractor
13 53 (2.26%) Visual Studio
14 51 (2.17%) Maven
15 43 (1.83%) Gradle
16 41 (1.75%) NUnit
16 41 (1.75%) TeamCity
17 38 (1.62%) JMeter
18 37 (1.58%) Postman
General
1 717 (30.55%) Finance
2 446 (19.00%) Social Skills
3 333 (14.19%) Inclusion and Diversity
4 276 (11.76%) Law
5 218 (9.29%) Banking
6 161 (6.86%) Marketing
7 122 (5.20%) Investment Banking
8 121 (5.16%) Public Sector
9 95 (4.05%) Front Office
10 91 (3.88%) Legal
11 74 (3.15%) Analytical Skills
12 60 (2.56%) Retail
13 59 (2.51%) Presentation Skills
14 48 (2.05%) Advertising
15 40 (1.70%) Games
16 35 (1.49%) Retail Banking
17 25 (1.07%) Tech for Good
18 21 (0.89%) Telecoms
19 18 (0.77%) Back Office
20 17 (0.72%) Local Government
Job Titles
1 1,415 (60.29%) Developer
2 575 (24.50%) .NET Developer
3 545 (23.22%) Software Engineer
4 488 (20.79%) Senior
5 308 (13.12%) Lead
6 249 (10.61%) Senior Developer
7 233 (9.93%) Java Developer
8 224 (9.54%) C# Developer
9 208 (8.86%) Java Engineer
10 182 (7.75%) C# .NET Developer
11 170 (7.24%) Java Software Engineer
12 151 (6.43%) Full Stack Developer
13 132 (5.62%) Software Developer
14 125 (5.33%) Senior Software Engineer
15 100 (4.26%) Developer/Software Engineer
16 98 (4.18%) AWS Engineer
17 97 (4.13%) Lead Developer
18 95 (4.05%) AWS Software Engineer
19 88 (3.75%) PHP Developer
20 83 (3.54%) Lead Software Engineer
Libraries, Frameworks & Software Standards
1 884 (37.67%) .NET
2 713 (30.38%) React
3 557 (23.73%) .NET Core
4 545 (23.22%) AngularJS
5 499 (21.26%) ASP.NET
6 496 (21.13%) Node.js
7 439 (18.70%) Entity Framework
8 437 (18.62%) CSS
9 436 (18.58%) HTML
10 402 (17.13%) ASP.NET MVC
11 357 (15.21%) Vue
12 347 (14.78%) .NET Framework
13 346 (14.74%) Spring
14 283 (12.06%) REST
15 265 (11.29%) ASP.NET Web API
16 250 (10.65%) Spring Boot
17 224 (9.54%) RESTful
18 219 (9.33%) Kafka
19 213 (9.08%) Web Services
20 194 (8.27%) HTML5
Miscellaneous
1 164 (6.99%) Greenfield Project
2 155 (6.60%) Product Ownership
3 136 (5.79%) Algorithms
4 92 (3.92%) Cloud Native
5 87 (3.71%) Data Structures
6 79 (3.37%) Distributed Systems
7 74 (3.15%) Fixed Income
8 68 (2.90%) Hedge funds
9 65 (2.77%) Derivative
10 63 (2.68%) Foreign Exchange (FX)
11 62 (2.64%) Public Cloud
12 55 (2.34%) Equities
13 41 (1.75%) Management Information System
14 40 (1.70%) Onboarding
15 38 (1.62%) PropTech
16 36 (1.53%) Client/Server
17 31 (1.32%) Enterprise Software
17 31 (1.32%) Private Cloud
18 29 (1.24%) Market Risk
19 27 (1.15%) Virtual Team
Operating Systems
1 120 (5.11%) Unix
2 111 (4.73%) Linux
3 36 (1.53%) Apple iOS
4 31 (1.32%) Android
4 31 (1.32%) Windows
5 12 (0.51%) Windows Server 2019
6 9 (0.38%) Mac OS
7 5 (0.21%) Embedded Linux
7 5 (0.21%) FreeRTOS
7 5 (0.21%) ThreadX
8 3 (0.13%) CentOS
8 3 (0.13%) FreeBSD
8 3 (0.13%) Mac OS X
9 1 (0.043%) Debian
9 1 (0.043%) Red Hat Enterprise Linux
9 1 (0.043%) Solaris
9 1 (0.043%) Ubuntu
9 1 (0.043%) Windows Server 2012
Processes & Methodologies
1 1,786 (76.10%) Agile
2 835 (35.58%) BDD
3 816 (34.77%) Software Engineering
4 780 (33.23%) CI/CD
5 773 (32.94%) Full Stack Development
6 767 (32.68%) Microservices
7 572 (24.37%) DevOps
7 572 (24.37%) Scrum
8 505 (21.52%) MVC
9 446 (19.00%) Test Automation
10 380 (16.19%) Kanban
11 338 (14.40%) SDLC
12 329 (14.02%) Mentoring
13 315 (13.42%) Continuous Integration
14 299 (12.74%) Problem-Solving
15 236 (10.06%) Machine Learning
16 220 (9.37%) Unit Testing
17 218 (9.29%) Continuous Improvement
17 218 (9.29%) SOLID
18 214 (9.12%) Artificial Intelligence
Programming Languages
1 999 (42.56%) JavaScript
2 924 (39.37%) C#
3 823 (35.07%) Java
4 739 (31.49%) SQL
5 542 (23.09%) TypeScript
6 414 (17.64%) Python
7 130 (5.54%) PHP
8 123 (5.24%) Go
9 95 (4.05%) PL/SQL
10 74 (3.15%) Kotlin
11 44 (1.87%) C
12 43 (1.83%) C++
13 42 (1.79%) T-SQL
14 33 (1.41%) Ruby
15 32 (1.36%) Shell Script
16 30 (1.28%) Scala
17 25 (1.07%) Bicep
18 19 (0.81%) PowerShell
19 18 (0.77%) Ada
20 14 (0.60%) Embedded C
Qualifications
1 180 (7.67%) Degree
2 164 (6.99%) Security Cleared
3 107 (4.56%) SC Cleared
4 64 (2.73%) Computer Science Degree
5 46 (1.96%) BPSS Clearance
6 42 (1.79%) DBS Check
7 33 (1.41%) Azure Certification
8 24 (1.02%) 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 (0.085%) AWS Certified Developer
13 2 (0.085%) CISSP
13 2 (0.085%) ISTQB
13 2 (0.085%) Microsoft Certification
13 2 (0.085%) PMP
13 2 (0.085%) SAFe Agilist
Quality Assurance & Compliance
1 166 (7.07%) QA
2 41 (1.75%) 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%) ISO 20022
8 2 (0.085%) SEPA
System Software
1 393 (16.74%) 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 19 (0.81%) 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
1 316 (13.46%) Kubernetes
2 265 (11.29%) Terraform
3 77 (3.28%) 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
8 5 (0.21%) Control-M
9 2 (0.085%) Istio
9 2 (0.085%) linkerd
10 1 (0.043%) Active Directory Federation Services
10 1 (0.043%) Consul
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
1 597 (25.44%) Microsoft
2 127 (5.41%) Databricks
3 86 (3.66%) Informatica
4 56 (2.39%) Cloudera
5 54 (2.30%) Oracle
6 42 (1.79%) WSO2
7 33 (1.41%) Google
8 27 (1.15%) Atlassian
9 26 (1.11%) Facebook
9 26 (1.11%) VMware
10 20 (0.85%) Splunk
11 17 (0.72%) IBM
12 16 (0.68%) Salesforce
13 10 (0.43%) Adobe
13 10 (0.43%) Red Hat
13 10 (0.43%) Teradata
14 9 (0.38%) Dell
14 9 (0.38%) TOWER Software
15 7 (0.30%) ServiceNow
16 6 (0.26%) Sitecore