Period
to 30 July 2021

The following table provides summary statistics for permanent job vacancies advertised in Yorkshire 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 July 2021 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
England > Yorkshire
6 months to
30 Jul 2021
Same period 2020 Same period 2019
Rank 42 30 46
Rank change year-on-year -12 +16 -22
Permanent jobs citing TDD 346 256 475
As % of all permanent jobs advertised in Yorkshire 5.79% 7.05% 6.23%
As % of the Processes & Methodologies category 6.15% 7.57% 6.83%
Number of salaries quoted 263 238 391
10th Percentile £40,000 £32,500 £35,000
25th Percentile £46,250 £40,000 £37,500
Median annual salary (50th Percentile) £57,500 £50,000 £45,000
Median % change year-on-year +15.00% +11.11% -
75th Percentile £64,375 £57,500 £56,250
90th Percentile £77,500 £66,250 £62,500
England median annual salary £62,500 £60,000 £55,000
% change year-on-year +4.17% +9.09% +4.76%

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 advertised in Yorkshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Yorkshire
Permanent vacancies with a requirement for process or methodology skills 5,628 3,381 6,955
As % of all permanent IT jobs advertised in Yorkshire 94.15% 93.11% 91.15%
Number of salaries quoted 4,412 2,911 5,616
10th Percentile £30,000 £29,000 £25,846
25th Percentile £37,500 £36,000 £32,500
Median annual salary (50th Percentile) £47,500 £47,500 £42,500
Median % change year-on-year - +11.76% -1.16%
75th Percentile £62,500 £57,500 £53,813
90th Percentile £72,500 £68,750 £63,750
England median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% +5.00%

TDD
Job Vacancy Trend in Yorkshire

Job postings citing TDD as a proportion of all IT jobs advertised in Yorkshire.

Job vacancy trend for TDD in Yorkshire

TDD
Salary Trend in Yorkshire

3-month moving average salary quoted in jobs citing TDD in Yorkshire.

Salary trend for TDD in Yorkshire

TDD
Salary Histogram in Yorkshire

Salary distribution for jobs citing TDD in Yorkshire over the 6 months to 30 July 2021.

Salary histogram for TDD in Yorkshire

TDD
Job Locations in Yorkshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the Yorkshire region over the 6 months to 30 July 2021. 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
Job
Vacancies
West Yorkshire -8 264 £55,000 +10.00% 63
South Yorkshire -27 63 £57,500 +21.05% 16
North Yorkshire -4 16 £47,500 -5.00% 7
East Yorkshire -17 2 £47,500 +35.71% 2
TDD
England

For the 6 months to 30 July 2021, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Yorkshire region with a requirement for TDD.

1 252 (72.83%) Agile Software Development
2 213 (61.56%) Java
3 174 (50.29%) JavaScript
4 150 (43.35%) Software Engineering
5 145 (41.91%) C#
6 131 (37.86%) React
7 120 (34.68%) Scrum
8 119 (34.39%) BDD
9 112 (32.37%) AWS
10 111 (32.08%) Python
11 110 (31.79%) AngularJS
12 101 (29.19%) Docker
13 97 (28.03%) DevOps
14 92 (26.59%) Azure
15 90 (26.01%) Kubernetes
16 89 (25.72%) Test Automation
17 87 (25.14%) Unit Testing
17 87 (25.14%) SQL
18 84 (24.28%) C++
18 84 (24.28%) SOLID
19 79 (22.83%) Git (software)
20 78 (22.54%) Continuous Integration
20 78 (22.54%) Jenkins
21 74 (21.39%) HTML
22 73 (21.10%) Vue.js
23 69 (19.94%) Scala
24 65 (18.79%) CSS
24 65 (18.79%) NoSQL
25 64 (18.50%) OOP
26 63 (18.21%) OO

TDD
Co-occurring IT Skills in Yorkshire by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 42 (12.14%) Elasticsearch
2 35 (10.12%) nginx
3 26 (7.51%) Oracle Workflow
4 16 (4.62%) Apache
4 16 (4.62%) Confluence
5 14 (4.05%) CMS
6 9 (2.60%) Apache Spark
7 7 (2.02%) IIS
8 6 (1.73%) Apache Synapse
9 4 (1.16%) JBoss
10 1 (0.29%) SharePoint
10 1 (0.29%) Tomcat
Applications
1 5 (1.45%) Adobe Illustrator
2 1 (0.29%) EngageOne
2 1 (0.29%) Microsoft Excel
Business Applications
1 2 (0.58%) SAP Business One
Cloud Services
1 112 (32.37%) AWS
2 92 (26.59%) Azure
3 59 (17.05%) GCP
4 52 (15.03%) AWS CloudFormation
5 23 (6.65%) Serverless
6 12 (3.47%) PaaS
7 8 (2.31%) AWS Lambda
7 8 (2.31%) Power Platform
8 7 (2.02%) Azure Data Factory
8 7 (2.02%) Azure Synapse Analytics
8 7 (2.02%) SaaS
9 6 (1.73%) Azure Functions
10 5 (1.45%) GitHub
11 4 (1.16%) Amazon CloudWatch
11 4 (1.16%) Amazon S3
11 4 (1.16%) AWS CodePipeline
11 4 (1.16%) Trello
12 2 (0.58%) Microsoft 365
12 2 (0.58%) Slack
13 1 (0.29%) BrowserStack
Communications & Networking
1 11 (3.18%) Internet
2 6 (1.73%) Broadband
3 4 (1.16%) HTTP
4 3 (0.87%) DLNA
4 3 (0.87%) TCP/IP
4 3 (0.87%) UPnP
4 3 (0.87%) Wi-Fi
5 2 (0.58%) 5G
Database & Business Intelligence
1 65 (18.79%) NoSQL
2 48 (13.87%) Redis
3 40 (11.56%) PostgreSQL
4 38 (10.98%) SQL Server
5 32 (9.25%) MySQL
6 24 (6.94%) Big Data
7 22 (6.36%) Relational Database
8 11 (3.18%) Apache Cassandra
9 9 (2.60%) Azure SQL Database
10 8 (2.31%) Data Warehouse
10 8 (2.31%) Power BI
10 8 (2.31%) SQL Server Integration Services
11 7 (2.02%) Data Lake
11 7 (2.02%) Spark SQL
12 6 (1.73%) Azure SQL Data Warehouse
12 6 (1.73%) Enterprise Data Warehouse
12 6 (1.73%) Microsoft Analysis Services
12 6 (1.73%) MongoDB
12 6 (1.73%) SQL Server Analysis Services
13 5 (1.45%) Oracle Database
Development Applications
1 79 (22.83%) Git (software)
2 78 (22.54%) Jenkins
3 40 (11.56%) GitLab
4 38 (10.98%) Subversion
5 36 (10.40%) Mercurial
6 24 (6.94%) JIRA
7 19 (5.49%) Maven
8 15 (4.34%) JUnit
9 12 (3.47%) Babel
9 12 (3.47%) webpack
10 9 (2.60%) Visual Studio
11 7 (2.02%) Atlassian Bamboo
11 7 (2.02%) CircleCI
12 6 (1.73%) Cucumber
12 6 (1.73%) Selenium
13 5 (1.45%) Bitbucket
13 5 (1.45%) Postman
14 4 (1.16%) Mockito
14 4 (1.16%) Sonatype Nexus
15 3 (0.87%) GCC
General
1 39 (11.27%) Social Skills
2 36 (10.40%) Public Sector
3 14 (4.05%) Games
4 11 (3.18%) Billing
4 11 (3.18%) Legal
5 10 (2.89%) Presentation Skills
6 7 (2.02%) Finance
7 3 (0.87%) Electronics
8 2 (0.58%) Banking
9 1 (0.29%) Analytical Skills
9 1 (0.29%) Back Office
9 1 (0.29%) Law
9 1 (0.29%) Organisational Skills
Job Titles
1 169 (48.84%) Developer
2 110 (31.79%) Software Engineer
3 39 (11.27%) Java Developer
4 35 (10.12%) Full Stack Developer
4 35 (10.12%) Python Engineer
4 35 (10.12%) Python Software Engineer
5 34 (9.83%) .NET Developer
5 34 (9.83%) Software Developer
6 30 (8.67%) Senior Developer
7 26 (7.51%) Access Developer
7 26 (7.51%) IAM Developer
7 26 (7.51%) Identity Management Developer
8 19 (5.49%) React Developer
9 16 (4.62%) PHP Developer
9 16 (4.62%) Senior Software Engineer
10 13 (3.76%) Senior Java Developer
11 12 (3.47%) Front End Developer (Client-Side Developer)
12 11 (3.18%) Lead Developer
12 11 (3.18%) Lead Java Developer
13 10 (2.89%) Senior .NET Developer
Libraries, Frameworks & Software Standards
1 131 (37.86%) React
2 110 (31.79%) AngularJS
3 74 (21.39%) HTML
4 73 (21.10%) Vue.js
5 65 (18.79%) CSS
6 59 (17.05%) Web Services
7 54 (15.61%) .NET
8 53 (15.32%) RabbitMQ
9 46 (13.29%) Spring
10 35 (10.12%) ASP.NET
10 35 (10.12%) Node.js
11 31 (8.96%) RESTful
12 30 (8.67%) XML
13 29 (8.38%) .NET Core
14 27 (7.80%) REST
14 27 (7.80%) Spring Boot
15 26 (7.51%) LDAP
15 26 (7.51%) OpenID
15 26 (7.51%) SailPoint
15 26 (7.51%) SAML
Miscellaneous
1 34 (9.83%) NHS
2 27 (7.80%) User Experience
3 26 (7.51%) Legacy Code
4 14 (4.05%) Greenfield Project
5 6 (1.73%) Data Protection Act
5 6 (1.73%) Mobile App
5 6 (1.73%) Social Media
6 5 (1.45%) Cloud Native
6 5 (1.45%) Graphic Design
6 5 (1.45%) Smartphone
7 4 (1.16%) Data Structures
7 4 (1.16%) DataPower
7 4 (1.16%) Legacy Applications
7 4 (1.16%) Self-Motivation
8 3 (0.87%) Digital TV
8 3 (0.87%) Enterprise Software
8 3 (0.87%) MPEG
8 3 (0.87%) Reference Data
8 3 (0.87%) Reinsurance
9 1 (0.29%) Virtual Team
Operating Systems
1 25 (7.23%) Linux
2 10 (2.89%) Unix
3 8 (2.31%) Windows
4 7 (2.02%) Android
5 4 (1.16%) Apple iOS
6 3 (0.87%) Embedded Linux
Processes & Methodologies
1 252 (72.83%) Agile Software Development
2 150 (43.35%) Software Engineering
3 120 (34.68%) Scrum
4 119 (34.39%) BDD
5 97 (28.03%) DevOps
6 89 (25.72%) Test Automation
7 87 (25.14%) Unit Testing
8 84 (24.28%) SOLID
9 78 (22.54%) Continuous Integration
10 64 (18.50%) OOP
11 63 (18.21%) OO
12 56 (16.18%) Kanban
12 56 (16.18%) MVC
13 55 (15.90%) Full Stack Development
14 48 (13.87%) Don't repeat yourself (DRY)
15 40 (11.56%) Microservices
16 38 (10.98%) Re-Platforming
17 37 (10.69%) Coaching
18 33 (9.54%) Biometrics
19 32 (9.25%) Continuous Improvement
Programming Languages
1 213 (61.56%) Java
2 174 (50.29%) JavaScript
3 145 (41.91%) C#
4 111 (32.08%) Python
5 87 (25.14%) SQL
6 84 (24.28%) C++
7 69 (19.94%) Scala
8 61 (17.63%) Kotlin
9 55 (15.90%) Go
10 50 (14.45%) Ruby
11 47 (13.58%) PHP
12 18 (5.20%) Java 8
12 18 (5.20%) PL/SQL
13 15 (4.34%) TypeScript
14 12 (3.47%) Java 11
14 12 (3.47%) T-SQL
15 11 (3.18%) Java 9
16 5 (1.45%) C
16 5 (1.45%) ES6
17 4 (1.16%) PHP 7
Qualifications
1 6 (1.73%) AWS Certification
2 4 (1.16%) Degree
3 3 (0.87%) Computer Science Degree
3 3 (0.87%) ISTQB
4 1 (0.29%) ISEB
Quality Assurance & Compliance
1 33 (9.54%) Data Quality
2 28 (8.09%) QA
3 15 (4.34%) Accessibility
System Software
1 101 (29.19%) Docker
2 26 (7.51%) Active Directory
2 26 (7.51%) NDS
2 26 (7.51%) NetIQ eDirectory
3 1 (0.29%) HDFS
Systems Management
1 90 (26.01%) Kubernetes
2 59 (17.05%) Terraform
3 47 (13.58%) Ansible
4 26 (7.51%) NetIQ Identity Manager
5 13 (3.76%) Opscode Chef
6 12 (3.47%) Graphite
6 12 (3.47%) Prometheus
7 1 (0.29%) Hadoop YARN
7 1 (0.29%) Puppet
Vendors
1 38 (10.98%) Oracle
2 26 (7.51%) ForgeRock
2 26 (7.51%) NetIQ
3 21 (6.07%) Atlassian
4 20 (5.78%) Microsoft
5 16 (4.62%) Splunk
6 15 (4.34%) BT
7 8 (2.31%) Adobe
8 7 (2.02%) Databricks
9 4 (1.16%) IBM
9 4 (1.16%) Pega
10 3 (0.87%) Brio
10 3 (0.87%) Google
11 2 (0.58%) MuleSoft
11 2 (0.58%) OpenText
11 2 (0.58%) Sage
11 2 (0.58%) Salesforce.com
11 2 (0.58%) SAP