Period
to 23 January 2021

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 23 January 2021 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
England > North West
6 months to
23 Jan 2021
Same period 2020 Same period 2019
Rank 29 24 24
Rank change year-on-year -5 0 -7
Permanent jobs citing TDD 335 747 976
As % of all permanent jobs advertised in the North West 6.92% 8.51% 9.21%
As % of the Processes & Methodologies category 7.39% 9.19% 10.07%
Number of salaries quoted 372 715 928
Median annual salary £55,000 £52,500 £50,000
Median salary % change year-on-year +4.76% +5.00% +11.11%
10th Percentile £37,500 £35,000 £32,500
90th Percentile £82,500 £67,500 £76,250
England median annual salary £60,000 £60,000 £55,000
% change year-on-year - +9.09% +10.00%

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 4,532 8,126 9,693
As % of all permanent IT jobs advertised in the North West 93.64% 92.59% 91.47%
Number of salaries quoted 3,838 6,513 7,882
Median annual salary £50,000 £45,000 £45,000
Median salary % change year-on-year +11.11% - -
10th Percentile £31,250 £27,500 £26,750
90th Percentile £73,750 £70,000 £70,000
England median annual salary £55,000 £55,000 £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 23 January 2021.

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 23 January 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
Manchester -12 250 £55,000 +4.76% 109
Cheshire +8 54 £60,000 +33.33% 31
Merseyside +8 13 £45,000 -18.18% 10
Lancashire +5 11 £42,500 +1.55% 9
TDD
England

For the 6 months to 23 January 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 North West region with a requirement for TDD.

1 202 (60.30%) Agile Software Development
2 171 (51.04%) JavaScript
3 134 (40.00%) C#
4 129 (38.51%) .NET
5 107 (31.94%) Software Engineering
6 98 (29.25%) DevOps
7 95 (28.36%) Microservices
7 95 (28.36%) SQL
8 90 (26.87%) Java
9 83 (24.78%) Docker
10 78 (23.28%) .NET Core
10 78 (23.28%) AWS
11 71 (21.19%) Azure
12 68 (20.30%) React
13 63 (18.81%) Test Automation
13 63 (18.81%) Continuous Integration
14 62 (18.51%) Pair Programming
14 62 (18.51%) AngularJS
15 61 (18.21%) Git (software)
16 59 (17.61%) CSS
16 59 (17.61%) HTML
17 58 (17.31%) NoSQL
18 57 (17.01%) BDD
19 55 (16.42%) Node.js
20 50 (14.93%) SOLID
21 48 (14.33%) Kubernetes
22 47 (14.03%) SQL Server
22 47 (14.03%) Python
22 47 (14.03%) Scrum
23 46 (13.73%) Finance

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 13 (3.88%) CMS
2 12 (3.58%) nginx
3 11 (3.28%) Elasticsearch
4 5 (1.49%) Adobe Experience Manager
4 5 (1.49%) BizTalk Server
4 5 (1.49%) NServiceBus
5 2 (0.60%) Apache
6 1 (0.30%) IIS
6 1 (0.30%) Moodle
6 1 (0.30%) Umbraco
Applications
1 2 (0.60%) Adobe XD
1 2 (0.60%) Chatbot
1 2 (0.60%) Photoshop
Business Applications
1 4 (1.19%) Magento
2 1 (0.30%) Salesforce.com CRM
2 1 (0.30%) Shopify
Cloud Services
1 78 (23.28%) AWS
2 71 (21.19%) Azure
3 33 (9.85%) Serverless
4 22 (6.57%) SaaS
5 15 (4.48%) AWS Lambda
6 12 (3.58%) GCP
7 11 (3.28%) AWS CloudFormation
7 11 (3.28%) PaaS
8 9 (2.69%) IaaS
9 7 (2.09%) NuGet
10 6 (1.79%) Amazon EC2
11 5 (1.49%) Logic Apps
12 4 (1.19%) Amazon ECS
12 4 (1.19%) Amazon S3
12 4 (1.19%) Cloud Computing
12 4 (1.19%) npm
13 3 (0.90%) Virtual Private Cloud
13 3 (0.90%) Yarn
14 2 (0.60%) Sauce Labs
15 1 (0.30%) Amazon Kinesis
Communications & Networking
1 3 (0.90%) TCP/IP
2 2 (0.60%) Software-Defined Radio
3 1 (0.30%) HTTP
3 1 (0.30%) SSH
Database & Business Intelligence
1 58 (17.31%) NoSQL
2 47 (14.03%) SQL Server
3 28 (8.36%) MySQL
4 21 (6.27%) MongoDB
5 12 (3.58%) Relational Database
6 11 (3.28%) PostgreSQL
6 11 (3.28%) Redis
6 11 (3.28%) SQL Server Integration Services
7 7 (2.09%) Data Warehouse
7 7 (2.09%) SQL Server 2016
8 6 (1.79%) Big Data
8 6 (1.79%) Cosmos DB
8 6 (1.79%) SQL Server Analysis Services
8 6 (1.79%) SQL Server Reporting Services
9 5 (1.49%) Apache Hive
9 5 (1.49%) Enterprise Data Warehouse
9 5 (1.49%) MariaDB
10 2 (0.60%) Amazon DynamoDB
10 2 (0.60%) Amazon RDS
10 2 (0.60%) Spark SQL
Development Applications
1 61 (18.21%) Git (software)
2 32 (9.55%) Jenkins
3 21 (6.27%) TeamCity
4 17 (5.07%) Visual Studio
5 16 (4.78%) JUnit
6 14 (4.18%) Gradle
7 12 (3.58%) IntelliJ
7 12 (3.58%) Subversion
8 11 (3.28%) Mockito
9 10 (2.99%) Mercurial
9 10 (2.99%) Selenium
10 9 (2.69%) Team Foundation Server
11 8 (2.39%) JIRA
12 7 (2.09%) Cucumber
13 6 (1.79%) git-flow
13 6 (1.79%) Jasmine
13 6 (1.79%) JMeter
13 6 (1.79%) MSTest
13 6 (1.79%) Vagrant
13 6 (1.79%) Visual Studio Code
General
1 46 (13.73%) Finance
2 12 (3.58%) Retail
3 9 (2.69%) Games
4 8 (2.39%) Marketing
5 4 (1.19%) Telecoms
6 2 (0.60%) Advertising
6 2 (0.60%) Banking
6 2 (0.60%) Housing Association
6 2 (0.60%) Law
7 1 (0.30%) Back Office
7 1 (0.30%) Electronics
7 1 (0.30%) Pharmaceutical
Job Titles
1 211 (62.99%) Developer
2 72 (21.49%) Senior Developer
3 70 (20.90%) .NET Developer
4 65 (19.40%) Software Engineer
5 34 (10.15%) Java Developer
6 33 (9.85%) Software Developer
7 26 (7.76%) Senior .NET Developer
8 25 (7.46%) Front End Developer (Client-Side Developer)
9 23 (6.87%) C# Developer
10 22 (6.57%) C# .NET Developer
11 19 (5.67%) Full Stack Developer
12 17 (5.07%) Angular Developer
13 15 (4.48%) React Developer
14 14 (4.18%) Senior Software Engineer
15 13 (3.88%) Python Engineer
15 13 (3.88%) Python Software Engineer
15 13 (3.88%) Senior Java Developer
16 12 (3.58%) Senior Front-End Developer
17 11 (3.28%) .NET Software Developer
18 9 (2.69%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 129 (38.51%) .NET
2 78 (23.28%) .NET Core
3 68 (20.30%) React
4 62 (18.51%) AngularJS
5 59 (17.61%) CSS
5 59 (17.61%) HTML
6 55 (16.42%) Node.js
7 45 (13.43%) REST
8 36 (10.75%) ASP.NET
8 36 (10.75%) RESTful
9 34 (10.15%) .NET Framework
10 33 (9.85%) Vue.js
11 32 (9.55%) Web Services
12 27 (8.06%) ASP.NET Web API
13 25 (7.46%) GraphQL
13 25 (7.46%) jQuery
13 25 (7.46%) Spring
14 20 (5.97%) Laravel
15 17 (5.07%) Entity Framework
15 17 (5.07%) RabbitMQ
Miscellaneous
1 27 (8.06%) User Experience
2 24 (7.16%) Greenfield Project
3 14 (4.18%) Enterprise Software
4 13 (3.88%) Blog
5 8 (2.39%) Mobile App
6 7 (2.09%) Analytical Skills
6 7 (2.09%) e-Learning
7 6 (1.79%) Cloud Native
8 5 (1.49%) Management Information System
8 5 (1.49%) NHS
9 4 (1.19%) Self-Motivation
9 4 (1.19%) Virtual Team
10 2 (0.60%) Data Centre
10 2 (0.60%) Device Driver
10 2 (0.60%) Embedded Systems
10 2 (0.60%) iPhone
11 1 (0.30%) Clustering
11 1 (0.30%) SCORM
11 1 (0.30%) Social Media
11 1 (0.30%) W3C
Operating Systems
1 15 (4.48%) Windows
2 14 (4.18%) Linux
3 5 (1.49%) Android
4 4 (1.19%) Apple iOS
5 2 (0.60%) CentOS
5 2 (0.60%) Ubuntu
6 1 (0.30%) Embedded Linux
6 1 (0.30%) Windows Server
Processes & Methodologies
1 202 (60.30%) Agile Software Development
2 107 (31.94%) Software Engineering
3 98 (29.25%) DevOps
4 95 (28.36%) Microservices
5 63 (18.81%) Continuous Integration
5 63 (18.81%) Test Automation
6 62 (18.51%) Pair Programming
7 57 (17.01%) BDD
8 50 (14.93%) SOLID
9 47 (14.03%) Scrum
10 44 (13.13%) MVC
11 40 (11.94%) Front End Development
12 38 (11.34%) OO
13 34 (10.15%) Mentoring
13 34 (10.15%) Unit Testing
14 32 (9.55%) E-Commerce
15 29 (8.66%) Coaching
15 29 (8.66%) Problem-Solving
16 24 (7.16%) SDLC
17 23 (6.87%) OOP
Programming Languages
1 171 (51.04%) JavaScript
2 134 (40.00%) C#
3 95 (28.36%) SQL
4 90 (26.87%) Java
5 47 (14.03%) Python
6 32 (9.55%) TypeScript
7 28 (8.36%) PHP
8 27 (8.06%) Go
9 25 (7.46%) C++
10 18 (5.37%) ES6
11 15 (4.48%) Ruby
12 14 (4.18%) T-SQL
13 13 (3.88%) Kotlin
14 11 (3.28%) Scala
15 10 (2.99%) Java 8
16 8 (2.39%) PowerShell
17 7 (2.09%) Groovy
18 5 (1.49%) C
18 5 (1.49%) VBScript
19 2 (0.60%) PL/SQL
Qualifications
1 23 (6.87%) Degree
2 20 (5.97%) PhD
3 9 (2.69%) Security Cleared
4 7 (2.09%) AWS Certification
4 7 (2.09%) SC Cleared
5 6 (1.79%) ISTQB
6 4 (1.19%) ISEB
7 3 (0.90%) Computer Science Degree
8 2 (0.60%) DV Cleared
8 2 (0.60%) Numerate Degree
9 1 (0.30%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 23 (6.87%) QA
2 9 (2.69%) ISO/IEC 27001
3 5 (1.49%) GDPR
4 4 (1.19%) ISO 9001
5 3 (0.90%) WCAG
System Software
1 83 (24.78%) Docker
Systems Management
1 48 (14.33%) Kubernetes
2 25 (7.46%) Terraform
3 10 (2.99%) Ansible
4 7 (2.09%) Opscode Chef
4 7 (2.09%) Packer
5 1 (0.30%) Grafana
5 1 (0.30%) Prometheus
Vendors
1 46 (13.73%) Microsoft
2 10 (2.99%) Adobe
3 7 (2.09%) Zend
4 6 (1.79%) Apple
4 6 (1.79%) Aquila
5 5 (1.49%) MKS
6 4 (1.19%) Oracle
7 3 (0.90%) Salesforce.com
8 2 (0.60%) SAP
9 1 (0.30%) Atlassian
9 1 (0.30%) Google
9 1 (0.30%) Progress
9 1 (0.30%) Rackspace