Period
to 22 October 2020

The following table provides summary statistics for permanent job vacancies advertised in the North West 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 22 October 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
England > North West
6 months to
22 Oct 2020
Same period 2019 Same period 2018
Rank 35 29 23
Rank change year-on-year -6 -6 -3
Permanent jobs citing TDD 270 753 1,114
As % of all permanent jobs advertised in the North West 6.71% 7.49% 9.46%
As % of the Processes & Methodologies category 7.22% 8.01% 10.35%
Number of salaries quoted 305 658 1,009
Median annual salary £55,000 £55,000 £50,000
Median salary % change year-on-year - +10.00% +11.11%
10th Percentile £41,250 £35,000 £32,000
90th Percentile £83,750 £67,500 £75,000
England median annual salary £60,000 £60,000 £55,000
% change year-on-year - +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 the North West with a requirement for process or methodology skills.

All Process and Methodology Skills
North West
Permanent vacancies with a requirement for process or methodology skills 3,739 9,397 10,762
As % of all permanent IT jobs advertised in the North West 92.99% 93.49% 91.39%
Number of salaries quoted 3,217 7,277 8,632
Median annual salary £50,000 £45,000 £45,000
Median salary % change year-on-year +11.11% - +5.88%
10th Percentile £31,650 £27,500 £26,250
90th Percentile £72,200 £69,489 £68,750
England median annual salary £55,000 £52,500 £52,500
% change year-on-year +4.76% - +5.00%

TDD
Job Vacancy Trend in the North West

Job postings citing TDD as a proportion of all IT jobs advertised in the North West.

Job vacancy trend for TDD in the North West

TDD
Salary Trend in the North West

3-month moving average salary quoted in jobs citing TDD in the North West.

Salary trend for TDD in the North West

TDD
Salary Histogram in the North West

Salary distribution for jobs citing TDD in the North West over the 6 months to 22 October 2020.

Salary histogram for TDD in the North West

TDD
Job Locations in the North West

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the North West region over the 6 months to 22 October 2020. 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
Manchester -6 212 £55,000 - 87
Cheshire -14 28 £72,500 +61.11% 25
Merseyside +22 13 £47,500 -20.83% 8
Lancashire +41 11 £55,000 +31.42% 11
TDD
England

For the 6 months to 22 October 2020, 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 North West region with a requirement for TDD.

1 174 (64.44%) Agile Software Development
2 141 (52.22%) JavaScript
3 128 (47.41%) .NET
4 123 (45.56%) C#
5 105 (38.89%) Microservices
6 99 (36.67%) Software Engineering
7 81 (30.00%) SQL
7 81 (30.00%) DevOps
8 78 (28.89%) .NET Core
9 75 (27.78%) Docker
10 72 (26.67%) React
11 69 (25.56%) AngularJS
12 64 (23.70%) BDD
13 62 (22.96%) Finance
14 61 (22.59%) Git (software)
15 59 (21.85%) Azure
15 59 (21.85%) Node.js
16 58 (21.48%) Continuous Integration
17 56 (20.74%) OO
18 54 (20.00%) Java
19 53 (19.63%) Scrum
20 52 (19.26%) AWS
20 52 (19.26%) NoSQL
21 50 (18.52%) Pair Programming
22 45 (16.67%) HTML
23 42 (15.56%) SOLID
24 41 (15.19%) TypeScript
24 41 (15.19%) ASP.NET
24 41 (15.19%) REST
25 38 (14.07%) Unit Testing

TDD
Co-occurring IT Skills in the North West 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 11 (4.07%) nginx
2 9 (3.33%) Elasticsearch
3 8 (2.96%) NServiceBus
4 7 (2.59%) CMS
5 3 (1.11%) Apache
6 2 (0.74%) Tomcat
7 1 (0.37%) Confluence
7 1 (0.37%) IIS
7 1 (0.37%) Moodle
7 1 (0.37%) Umbraco
Applications
1 3 (1.11%) Microsoft Office
2 1 (0.37%) MS Visio
Business Applications
1 5 (1.85%) Magento
2 1 (0.37%) Payment Gateway
2 1 (0.37%) Salesforce.com CRM
Cloud Services
1 59 (21.85%) Azure
2 52 (19.26%) AWS
3 27 (10.00%) Serverless
4 16 (5.93%) npm
5 12 (4.44%) AWS Lambda
5 12 (4.44%) SaaS
6 11 (4.07%) GCP
7 10 (3.70%) NuGet
8 7 (2.59%) IaaS
8 7 (2.59%) Logic Apps
8 7 (2.59%) PaaS
9 6 (2.22%) Cloud Computing
10 5 (1.85%) AWS CloudFormation
10 5 (1.85%) Yarn
11 4 (1.48%) Amazon ECS
11 4 (1.48%) Virtual Private Cloud
12 3 (1.11%) Amazon S3
13 2 (0.74%) Amazon Cognito
13 2 (0.74%) Amazon EC2
13 2 (0.74%) SonarCloud
Communications & Networking
1 10 (3.70%) Skype
2 5 (1.85%) AMQP
3 3 (1.11%) SSL
3 3 (1.11%) TCP/IP
4 2 (0.74%) Wireless
5 1 (0.37%) Firewall
5 1 (0.37%) SSH
Database & Business Intelligence
1 52 (19.26%) NoSQL
2 25 (9.26%) SQL Server
3 22 (8.15%) MongoDB
3 22 (8.15%) MySQL
4 21 (7.78%) PostgreSQL
5 9 (3.33%) Redis
6 7 (2.59%) Relational Database
7 6 (2.22%) Big Data
8 4 (1.48%) Amazon DynamoDB
8 4 (1.48%) Amazon RDS
9 3 (1.11%) Data Warehouse
10 2 (0.74%) Neo4j
11 1 (0.37%) Amazon Redshift
11 1 (0.37%) Cosmos DB
11 1 (0.37%) SQL Server 2016
11 1 (0.37%) SQL Server 2019
Development Applications
1 61 (22.59%) Git (software)
2 30 (11.11%) TeamCity
3 17 (6.30%) Selenium
4 14 (5.19%) JIRA
5 13 (4.81%) webpack
6 12 (4.44%) Jenkins
6 12 (4.44%) Mockito
7 11 (4.07%) JUnit
7 11 (4.07%) Team Foundation Server
7 11 (4.07%) Visual Studio
8 10 (3.70%) NUnit
8 10 (3.70%) Subversion
9 9 (3.33%) Mercurial
10 8 (2.96%) Mocha
10 8 (2.96%) Octopus Deploy
10 8 (2.96%) SpecFlow
10 8 (2.96%) TestCafe
11 6 (2.22%) IntelliJ
12 5 (1.85%) Visual Studio Code
13 4 (1.48%) Gradle
General
1 62 (22.96%) Finance
2 12 (4.44%) Marketing
3 11 (4.07%) Public Sector
4 10 (3.70%) Electronics
5 8 (2.96%) Manufacturing
5 8 (2.96%) Telecoms
6 6 (2.22%) Retail
7 3 (1.11%) Games
7 3 (1.11%) Law
8 2 (0.74%) Housing Association
9 1 (0.37%) Back Office
9 1 (0.37%) Financial Institution
9 1 (0.37%) Pharmaceutical
Job Titles
1 176 (65.19%) Developer
2 66 (24.44%) Software Engineer
3 65 (24.07%) Senior Developer
4 45 (16.67%) .NET Developer
5 29 (10.74%) Software Developer
6 26 (9.63%) Angular Developer
7 25 (9.26%) Senior Software Engineer
8 23 (8.52%) Java Developer
9 21 (7.78%) Senior .NET Developer
10 20 (7.41%) C# Developer
11 19 (7.04%) .NET Software Engineer
12 18 (6.67%) C# .NET Developer
13 17 (6.30%) Full Stack Developer
14 13 (4.81%) JavaScript Developer
15 12 (4.44%) Front End Developer (Client-Side Developer)
16 11 (4.07%) PHP Developer
16 11 (4.07%) React Developer
16 11 (4.07%) Senior Java Developer
17 10 (3.70%) AWS Developer
17 10 (3.70%) C# Software Engineer
Libraries, Frameworks & Software Standards
1 128 (47.41%) .NET
2 78 (28.89%) .NET Core
3 72 (26.67%) React
4 69 (25.56%) AngularJS
5 59 (21.85%) Node.js
6 45 (16.67%) HTML
7 41 (15.19%) ASP.NET
7 41 (15.19%) REST
8 37 (13.70%) CSS
9 33 (12.22%) RESTful
10 31 (11.48%) Vue.js
11 28 (10.37%) .NET Framework
12 27 (10.00%) Web Services
13 24 (8.89%) ASP.NET Web API
14 22 (8.15%) Sass
15 21 (7.78%) RabbitMQ
16 19 (7.04%) Redux
17 16 (5.93%) ASP.NET Core
17 16 (5.93%) GraphQL
17 16 (5.93%) jQuery
Miscellaneous
1 31 (11.48%) Greenfield Project
2 22 (8.15%) Enterprise Software
3 20 (7.41%) User Experience
4 17 (6.30%) Mobile App
5 16 (5.93%) Virtual Team
6 10 (3.70%) Cloud Native
7 9 (3.33%) NHS
8 7 (2.59%) Blog
9 6 (2.22%) Analytical Skills
10 2 (0.74%) Device Driver
10 2 (0.74%) e-Learning
10 2 (0.74%) Embedded Systems
10 2 (0.74%) iPhone
10 2 (0.74%) W3C
11 1 (0.37%) BBC
11 1 (0.37%) EPoS
11 1 (0.37%) SCORM
11 1 (0.37%) Self-Motivation
11 1 (0.37%) Social Media
Operating Systems
1 10 (3.70%) Linux
2 8 (2.96%) Apple iOS
3 7 (2.59%) Android
4 1 (0.37%) Mac OS
4 1 (0.37%) Unix
4 1 (0.37%) Windows
Processes & Methodologies
1 174 (64.44%) Agile Software Development
2 105 (38.89%) Microservices
3 99 (36.67%) Software Engineering
4 81 (30.00%) DevOps
5 64 (23.70%) BDD
6 58 (21.48%) Continuous Integration
7 56 (20.74%) OO
8 53 (19.63%) Scrum
9 50 (18.52%) Pair Programming
10 42 (15.56%) SOLID
11 38 (14.07%) Unit Testing
12 36 (13.33%) Test Automation
13 33 (12.22%) MVC
14 31 (11.48%) E-Commerce
15 27 (10.00%) Problem-Solving
16 26 (9.63%) Front End Development
17 22 (8.15%) Continuous Improvement
18 18 (6.67%) OOP
19 16 (5.93%) Kanban
20 15 (5.56%) Refactoring
Programming Languages
1 141 (52.22%) JavaScript
2 123 (45.56%) C#
3 81 (30.00%) SQL
4 54 (20.00%) Java
5 41 (15.19%) TypeScript
6 27 (10.00%) PHP
7 21 (7.78%) Python
8 13 (4.81%) ES6
9 12 (4.44%) C
9 12 (4.44%) C++
9 12 (4.44%) Java 8
10 11 (4.07%) Ruby
11 9 (3.33%) Go
12 7 (2.59%) T-SQL
13 4 (1.48%) Kotlin
14 3 (1.11%) Apple Swift
14 3 (1.11%) PowerShell
15 2 (0.74%) ES8
15 2 (0.74%) PHP 7
15 2 (0.74%) Scala
Qualifications
1 15 (5.56%) Degree
2 14 (5.19%) PhD
3 12 (4.44%) Security Cleared
4 8 (2.96%) SC Cleared
5 5 (1.85%) DV Cleared
6 4 (1.48%) Computer Science Degree
7 2 (0.74%) Numerate Degree
8 1 (0.37%) AWS Certification
Quality Assurance & Compliance
1 18 (6.67%) QA
2 4 (1.48%) PCI DSS
3 3 (1.11%) WCAG
System Software
1 75 (27.78%) Docker
Systems Management
1 31 (11.48%) Kubernetes
2 8 (2.96%) Ansible
3 6 (2.22%) Terraform
4 2 (0.74%) Grafana
4 2 (0.74%) Prometheus
Vendors
1 25 (9.26%) Microsoft
2 10 (3.70%) SAP
3 7 (2.59%) Zend
4 4 (1.48%) Google
5 3 (1.11%) Sitecore
6 2 (0.74%) Oracle
6 2 (0.74%) Progress
6 2 (0.74%) Splunk
7 1 (0.37%) Apple
7 1 (0.37%) Freshdesk
7 1 (0.37%) Rackspace
7 1 (0.37%) Salesforce.com
7 1 (0.37%) Spiceworks