Period
to 14 August 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 14 August 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
England > North West
6 months to
14 Aug 2020
Same period 2019 Same period 2018
Rank 31 32 19
Rank change year-on-year +1 -13 +1
Permanent jobs citing TDD 332 705 1,182
As % of all permanent jobs advertised in the North West 6.89% 6.68% 9.74%
As % of the Processes & Methodologies category 7.49% 7.11% 10.60%
Number of salaries quoted 341 597 1,058
Median annual salary £55,000 £52,500 £47,500
Median salary % change year-on-year +4.76% +10.53% +7.95%
10th Percentile £41,250 £35,450 £32,000
90th Percentile £80,000 £72,500 £71,250
England median annual salary £60,000 £57,500 £52,500
% change year-on-year +4.35% +9.52% -

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 4,435 9,914 11,149
As % of all permanent IT jobs advertised in the North West 91.99% 93.94% 91.84%
Number of salaries quoted 3,611 7,316 8,969
Median annual salary £50,000 £45,000 £45,000
Median salary % change year-on-year +11.11% - +8.43%
10th Percentile £31,250 £26,750 £26,250
90th Percentile £70,000 £69,867 £67,500
England median annual salary £55,000 £52,500 £50,000
% 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 14 August 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 14 August 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 +3 284 £55,000 - 58
Cheshire -31 21 £57,500 +15.00% 24
Lancashire +55 12 £50,000 +17.65% 6
Merseyside +19 11 £60,000 -4.00% 13
TDD
England

For the 6 months to 14 August 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.

1 220 (66.27%) Agile Software Development
2 157 (47.29%) JavaScript
3 148 (44.58%) .NET
4 136 (40.96%) C#
5 126 (37.95%) BDD
6 113 (34.04%) Software Engineering
7 108 (32.53%) Microservices
8 105 (31.63%) DevOps
9 99 (29.82%) React
10 98 (29.52%) .NET Core
11 90 (27.11%) SQL
11 90 (27.11%) AngularJS
12 88 (26.51%) Docker
13 79 (23.80%) Git (software)
14 78 (23.49%) AWS
15 76 (22.89%) Azure
16 73 (21.99%) Node.js
17 72 (21.69%) HTML
18 64 (19.28%) Scrum
18 64 (19.28%) Java
19 62 (18.67%) CSS
20 61 (18.37%) Finance
21 59 (17.77%) Continuous Integration
21 59 (17.77%) TypeScript
22 58 (17.47%) Test Automation
23 53 (15.96%) Pair Programming
24 52 (15.66%) Unit Testing
25 51 (15.36%) OO
26 48 (14.46%) E-Commerce
27 47 (14.16%) ASP.NET

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 15 (4.52%) Apache
2 14 (4.22%) CMS
3 8 (2.41%) Sitecore CMS
3 8 (2.41%) Umbraco
4 7 (2.11%) NServiceBus
5 6 (1.81%) nginx
6 5 (1.51%) Elasticsearch
7 3 (0.90%) Confluence
8 2 (0.60%) Tomcat
Applications
1 3 (0.90%) Microsoft Office
2 1 (0.30%) MS Visio
Business Applications
1 8 (2.41%) SDL Web 8
2 4 (1.20%) Magento
3 2 (0.60%) Dynamics NAV
4 1 (0.30%) Payment Gateway
Cloud Services
1 78 (23.49%) AWS
2 76 (22.89%) Azure
3 37 (11.14%) Serverless
4 19 (5.72%) AWS Lambda
5 18 (5.42%) GCP
6 16 (4.82%) npm
7 14 (4.22%) Amazon S3
8 10 (3.01%) SaaS
9 8 (2.41%) Amazon EC2
10 6 (1.81%) Cloud Computing
10 6 (1.81%) NuGet
11 5 (1.51%) Amazon ECS
11 5 (1.51%) Logic Apps
12 4 (1.20%) Amazon Kinesis
12 4 (1.20%) AWS CloudFormation
12 4 (1.20%) GitHub
13 3 (0.90%) Yarn
14 2 (0.60%) Amazon Cognito
14 2 (0.60%) Amazon ELB
14 2 (0.60%) SonarCloud
Communications & Networking
1 14 (4.22%) Skype
2 9 (2.71%) HTTP
3 5 (1.51%) AMQP
3 5 (1.51%) Internet
4 3 (0.90%) Firewall
4 3 (0.90%) SSL
5 2 (0.60%) TCP/IP
5 2 (0.60%) Wireless
6 1 (0.30%) SSH
Database & Business Intelligence
1 46 (13.86%) NoSQL
2 32 (9.64%) SQL Server
3 31 (9.34%) MongoDB
4 17 (5.12%) PostgreSQL
5 14 (4.22%) MySQL
6 11 (3.31%) Relational Database
7 7 (2.11%) Amazon DynamoDB
8 6 (1.81%) RDBMS
9 5 (1.51%) Data Warehouse
10 4 (1.20%) Amazon Athena
10 4 (1.20%) Neo4j
11 3 (0.90%) Amazon RDS
11 3 (0.90%) Couchbase
12 2 (0.60%) SQL Server Integration Services
13 1 (0.30%) Amazon Redshift
13 1 (0.30%) Big Data
13 1 (0.30%) BusinessObjects
13 1 (0.30%) DB2
13 1 (0.30%) RavenDB
13 1 (0.30%) SAP Data Services
Development Applications
1 79 (23.80%) Git (software)
2 34 (10.24%) Selenium
3 26 (7.83%) TeamCity
4 21 (6.33%) Jenkins
5 20 (6.02%) JIRA
6 17 (5.12%) webpack
7 14 (4.22%) Team Foundation Server
8 12 (3.61%) Maven
8 12 (3.61%) SpecFlow
9 11 (3.31%) NUnit
10 10 (3.01%) Mocha
11 9 (2.71%) TestCafe
11 9 (2.71%) Visual Studio
12 8 (2.41%) Appium
12 8 (2.41%) Calabash
12 8 (2.41%) Gradle
13 7 (2.11%) Mercurial
13 7 (2.11%) ReSharper
14 6 (1.81%) Mockito
14 6 (1.81%) Subversion
General
1 61 (18.37%) Finance
2 18 (5.42%) Public Sector
3 14 (4.22%) Marketing
4 12 (3.61%) Electronics
4 12 (3.61%) Games
5 11 (3.31%) Telecoms
6 10 (3.01%) Manufacturing
6 10 (3.01%) Retail
7 8 (2.41%) Law
8 6 (1.81%) Banking
9 2 (0.60%) Financial Institution
9 2 (0.60%) Housing Association
10 1 (0.30%) Automotive
10 1 (0.30%) Environmental Health
10 1 (0.30%) Local Government
Job Titles
1 219 (65.96%) Developer
2 94 (28.31%) Senior Developer
3 66 (19.88%) Software Engineer
4 49 (14.76%) .NET Developer
5 38 (11.45%) Senior Software Engineer
6 32 (9.64%) Senior .NET Developer
7 28 (8.43%) Angular Developer
7 28 (8.43%) C# Developer
8 27 (8.13%) .NET Software Engineer
9 26 (7.83%) Java Developer
9 26 (7.83%) Software Developer
10 25 (7.53%) Full Stack Developer
11 23 (6.93%) PHP Developer
12 20 (6.02%) Senior Java Developer
13 19 (5.72%) C# .NET Developer
13 19 (5.72%) Front End Developer (Client-Side Developer)
14 17 (5.12%) Senior .NET Software Engineer
15 15 (4.52%) JavaScript Developer
16 13 (3.92%) Java Engineer
17 12 (3.61%) Lead Developer
Libraries, Frameworks & Software Standards
1 148 (44.58%) .NET
2 99 (29.82%) React
3 98 (29.52%) .NET Core
4 90 (27.11%) AngularJS
5 73 (21.99%) Node.js
6 72 (21.69%) HTML
7 62 (18.67%) CSS
8 47 (14.16%) ASP.NET
9 38 (11.45%) Vue.js
10 37 (11.14%) RESTful
11 36 (10.84%) Web Services
12 35 (10.54%) Sass
12 35 (10.54%) Spring
13 30 (9.04%) .NET Framework
13 30 (9.04%) ASP.NET Web API
14 28 (8.43%) Redux
15 25 (7.53%) REST
16 20 (6.02%) GraphQL
17 18 (5.42%) ASP.NET Core
17 18 (5.42%) Spring Boot
Miscellaneous
1 39 (11.75%) Greenfield Project
2 28 (8.43%) Mobile App
3 24 (7.23%) Enterprise Software
4 22 (6.63%) User Experience
5 20 (6.02%) Cloud Native
6 19 (5.72%) Virtual Team
7 9 (2.71%) NHS
8 5 (1.51%) Online Games
8 5 (1.51%) Wiki
9 4 (1.20%) Algorithms
9 4 (1.20%) Data Structures
9 4 (1.20%) Social Media
10 3 (0.90%) Analytical Skills
10 3 (0.90%) BBC
11 2 (0.60%) Blog
11 2 (0.60%) Device Driver
11 2 (0.60%) e-Learning
11 2 (0.60%) Embedded Systems
12 1 (0.30%) Self-Motivation
12 1 (0.30%) W3C
Operating Systems
1 25 (7.53%) Linux
2 13 (3.92%) Android
2 13 (3.92%) Apple iOS
3 2 (0.60%) Windows
4 1 (0.30%) Mac OS
4 1 (0.30%) Unix
Processes & Methodologies
1 220 (66.27%) Agile Software Development
2 126 (37.95%) BDD
3 113 (34.04%) Software Engineering
4 108 (32.53%) Microservices
5 105 (31.63%) DevOps
6 64 (19.28%) Scrum
7 59 (17.77%) Continuous Integration
8 58 (17.47%) Test Automation
9 53 (15.96%) Pair Programming
10 52 (15.66%) Unit Testing
11 51 (15.36%) OO
12 48 (14.46%) E-Commerce
13 47 (14.16%) SOLID
14 46 (13.86%) MVC
15 27 (8.13%) OOP
16 25 (7.53%) Front End Development
17 23 (6.93%) Coaching
17 23 (6.93%) Continuous Improvement
18 22 (6.63%) SDLC
19 20 (6.02%) Kanban
Programming Languages
1 157 (47.29%) JavaScript
2 136 (40.96%) C#
3 90 (27.11%) SQL
4 64 (19.28%) Java
5 59 (17.77%) TypeScript
6 38 (11.45%) PHP
7 28 (8.43%) Python
8 21 (6.33%) Java 8
8 21 (6.33%) Ruby
9 18 (5.42%) C
9 18 (5.42%) ES6
10 10 (3.01%) Scala
10 10 (3.01%) T-SQL
11 6 (1.81%) Groovy
12 5 (1.51%) Go
12 5 (1.51%) Kotlin
13 4 (1.20%) PowerShell
14 3 (0.90%) Apple Swift
15 2 (0.60%) ES8
15 2 (0.60%) VB.NET
Qualifications
1 5 (1.51%) Security Cleared
2 4 (1.20%) Degree
2 4 (1.20%) PhD
3 3 (0.90%) DV Cleared
4 2 (0.60%) Computer Science Degree
4 2 (0.60%) ISTQB
4 2 (0.60%) SC Cleared
5 1 (0.30%) ISEB
5 1 (0.30%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 31 (9.34%) QA
2 6 (1.81%) PCI DSS
3 2 (0.60%) GDPR
3 2 (0.60%) WCAG
System Software
1 88 (26.51%) Docker
Systems Management
1 35 (10.54%) Kubernetes
2 8 (2.41%) Terraform
3 6 (1.81%) Opscode Chef
4 5 (1.51%) Ansible
4 5 (1.51%) Kibana
4 5 (1.51%) Puppet
5 4 (1.20%) logstash
6 2 (0.60%) Grafana
6 2 (0.60%) Prometheus
Vendors
1 27 (8.13%) Microsoft
2 11 (3.31%) SAP
2 11 (3.31%) Sitecore
3 6 (1.81%) Splunk
4 4 (1.20%) Google
4 4 (1.20%) Zend
5 2 (0.60%) Progress
5 2 (0.60%) Xamarin
6 1 (0.30%) Alteryx
6 1 (0.30%) Apple
6 1 (0.30%) Atlassian
6 1 (0.30%) CA
6 1 (0.30%) CA Agile Central
6 1 (0.30%) Freshdesk
6 1 (0.30%) IBM
6 1 (0.30%) MuleSoft
6 1 (0.30%) Parasoft
6 1 (0.30%) Rackspace
6 1 (0.30%) Spiceworks
6 1 (0.30%) Tableau