Period
to 24 November 2020

The table below provides summary statistics for permanent job vacancies with an option to work from home (WFH) and 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 24 November 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > Work from Home
6 months to
24 Nov 2020
Same period 2019 Same period 2018
Rank 27 24 22
Rank change year-on-year -3 -2 -7
Permanent jobs citing TDD 730 690 760
As % of all permanent jobs with a WFH option 8.81% 9.00% 9.86%
As % of the Processes & Methodologies category 9.50% 9.68% 10.68%
Number of salaries quoted 1,351 1,268 1,430
Median annual salary £60,000 £55,000 £50,000
Median salary % change year-on-year +9.09% +10.00% +11.11%
10th Percentile £41,250 £35,000 £35,000
90th Percentile £85,000 £83,750 £76,250
UK median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +4.55% +7.84%

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 WFH option and a requirement for process or methodology skills.

All Process and Methodology Skills
Work from Home
Permanent vacancies with a requirement for process or methodology skills 7,683 7,131 7,117
As % of all permanent jobs with a WFH option 92.77% 93.00% 92.30%
Number of salaries quoted 6,835 6,118 6,137
Median annual salary £55,000 £57,124 £55,000
Median salary % change year-on-year -3.72% +3.86% +4.76%
10th Percentile £36,250 £35,000 £33,750
90th Percentile £85,000 £87,500 £82,500
UK median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +5.00% -

TDD
Trend for Jobs with a WFH Option

Job vacancies with a work from home option citing TDD as a proportion of all IT jobs advertised.

TDD trend for jobs with a WFH option

TDD
Salary Trend for Jobs with a WFH Option

3-month moving average salary quoted in job vacancies with a work from home option citing TDD.

TDD salary trend for jobs with a WFH option

TDD
Salary Histogram for Jobs with a WFH Option

Salary distribution for jobs with a work from home option citing TDD over the 6 months to 24 November 2020.

TDD salary histogram for jobs with a WFH option

For the 6 months to 24 November 2020, TDD job roles required the following IT skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent jobs with a WFH option and a requirement for TDD.

1 461 (63.15%) Agile Software Development
2 290 (39.73%) JavaScript
3 275 (37.67%) .NET
4 265 (36.30%) C#
5 238 (32.60%) Java
6 228 (31.23%) Azure
7 227 (31.10%) AngularJS
8 216 (29.59%) SQL
9 213 (29.18%) BDD
10 203 (27.81%) AWS
11 202 (27.67%) DevOps
12 198 (27.12%) .NET Core
13 193 (26.44%) Scrum
14 184 (25.21%) Microservices
15 156 (21.37%) Docker
16 154 (21.10%) Continuous Integration
17 147 (20.14%) React
18 143 (19.59%) Software Engineering
19 129 (17.67%) Git (software)
20 123 (16.85%) NoSQL
21 118 (16.16%) OO
22 117 (16.03%) HTML
23 113 (15.48%) CSS
24 112 (15.34%) MVC
25 109 (14.93%) Node.js
25 109 (14.93%) Continuous Delivery
26 106 (14.52%) RESTful
27 103 (14.11%) Web Services
28 102 (13.97%) SOLID
29 100 (13.70%) Finance

TDD
Co-occurring IT Skills with a WFH Option 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 29 (3.97%) Elasticsearch
2 16 (2.19%) Tomcat
3 14 (1.92%) nginx
4 13 (1.78%) NServiceBus
5 11 (1.51%) Umbraco
6 10 (1.37%) CMS
6 10 (1.37%) Confluence
7 9 (1.23%) Moodle
7 9 (1.23%) WordPress
8 7 (0.96%) JBoss
8 7 (0.96%) Red Hat Fuse
9 6 (0.82%) Apache Spark
9 6 (0.82%) Mule
9 6 (0.82%) Mule ESB
10 5 (0.68%) WebSphere
11 4 (0.55%) Drupal
11 4 (0.55%) Oracle Workflow
11 4 (0.55%) SharePoint
11 4 (0.55%) Tornado
12 3 (0.41%) Apache
Applications
1 6 (0.82%) Adobe Creative Suite
1 6 (0.82%) InVision
1 6 (0.82%) Sketch
Business Applications
1 5 (0.68%) Dynamics CRM
1 5 (0.68%) Payment Gateway
2 3 (0.41%) Magento
2 3 (0.41%) Shopify
3 1 (0.14%) nopCommerce
Cloud Services
1 228 (31.23%) Azure
2 203 (27.81%) AWS
3 45 (6.16%) GCP
4 43 (5.89%) SaaS
5 38 (5.21%) Serverless
6 29 (3.97%) Amazon EC2
7 25 (3.42%) AWS Lambda
8 22 (3.01%) Logic Apps
9 17 (2.33%) Amazon S3
9 17 (2.33%) OpenShift
9 17 (2.33%) PaaS
10 15 (2.05%) Azure Data Factory
11 14 (1.92%) npm
12 13 (1.78%) Slack
13 9 (1.23%) Amazon ECS
14 7 (0.96%) Amazon Kinesis
14 7 (0.96%) AWS CloudFormation
14 7 (0.96%) NuGet
15 6 (0.82%) CloudFront
15 6 (0.82%) GitHub
Communications & Networking
1 14 (1.92%) Skype
2 6 (0.82%) Network Security
3 4 (0.55%) Internet
4 2 (0.27%) HTTP
4 2 (0.27%) TCP/IP
5 1 (0.14%) PPP
5 1 (0.14%) VPN
5 1 (0.14%) X.509
Database & Business Intelligence
1 123 (16.85%) NoSQL
2 95 (13.01%) SQL Server
3 81 (11.10%) MongoDB
4 61 (8.36%) MySQL
5 56 (7.67%) PostgreSQL
6 43 (5.89%) Relational Database
7 38 (5.21%) Redis
8 30 (4.11%) Amazon DynamoDB
9 18 (2.47%) Big Data
10 13 (1.78%) Apache Cassandra
11 11 (1.51%) Amazon RDS
12 10 (1.37%) SQL Server 2017
13 8 (1.10%) Data Warehouse
14 6 (0.82%) Amazon Athena
14 6 (0.82%) Azure SQL Database
14 6 (0.82%) Cosmos DB
15 4 (0.55%) Amazon Redshift
15 4 (0.55%) BigQuery
15 4 (0.55%) Hadoop
15 4 (0.55%) SQL Server 2016
Development Applications
1 129 (17.67%) Git (software)
2 63 (8.63%) Jenkins
3 47 (6.44%) Selenium
4 34 (4.66%) JIRA
5 29 (3.97%) Subversion
6 28 (3.84%) Cucumber
7 27 (3.70%) RSpec
8 23 (3.15%) Maven
9 21 (2.88%) TeamCity
10 17 (2.33%) JUnit
10 17 (2.33%) NUnit
10 17 (2.33%) Octopus Deploy
11 16 (2.19%) Visual Studio
12 14 (1.92%) Capybara
13 13 (1.78%) Liquibase
13 13 (1.78%) minitest
14 12 (1.64%) CircleCI
14 12 (1.64%) Cypress.io
14 12 (1.64%) Mercurial
14 12 (1.64%) WebDriver
General
1 100 (13.70%) Finance
2 28 (3.84%) Public Sector
3 18 (2.47%) Banking
4 17 (2.33%) Electronics
5 16 (2.19%) Marketing
6 13 (1.78%) Advertising
7 12 (1.64%) Manufacturing
7 12 (1.64%) Telecoms
8 11 (1.51%) Law
9 8 (1.10%) Back Office
10 4 (0.55%) Investment Banking
10 4 (0.55%) Publishing
11 3 (0.41%) Front Office
11 3 (0.41%) Games
11 3 (0.41%) Legal
11 3 (0.41%) Retail
12 2 (0.27%) Housing Association
13 1 (0.14%) Local Government
Job Titles
1 526 (72.05%) Developer
2 120 (16.44%) Senior Developer
3 101 (13.84%) .NET Developer
4 92 (12.60%) Java Developer
5 75 (10.27%) C# Developer
6 66 (9.04%) Full Stack Developer
7 62 (8.49%) C# .NET Developer
7 62 (8.49%) Software Developer
8 61 (8.36%) Angular Developer
9 51 (6.99%) Software Engineer
10 47 (6.44%) Lead Developer
11 36 (4.93%) React Developer
12 28 (3.84%) Ruby Developer
13 27 (3.70%) PHP Developer
14 25 (3.42%) SQL Developer
15 24 (3.29%) Senior .NET Developer
16 23 (3.15%) Java Engineer
16 23 (3.15%) Mobile Developer
17 22 (3.01%) Senior Java Developer
18 21 (2.88%) Senior C# Developer
Libraries, Frameworks & Software Standards
1 275 (37.67%) .NET
2 227 (31.10%) AngularJS
3 198 (27.12%) .NET Core
4 147 (20.14%) React
5 117 (16.03%) HTML
6 113 (15.48%) CSS
7 109 (14.93%) Node.js
8 106 (14.52%) RESTful
9 103 (14.11%) Web Services
10 94 (12.88%) REST
11 89 (12.19%) Spring
12 79 (10.82%) ASP.NET
13 75 (10.27%) .NET Framework
14 64 (8.77%) ASP.NET Web API
15 58 (7.95%) ASP.NET MVC
16 55 (7.53%) Vue.js
17 41 (5.62%) HTML5
17 41 (5.62%) JSON
18 40 (5.48%) Entity Framework
19 38 (5.21%) Hibernate
Miscellaneous
1 58 (7.95%) Greenfield Project
2 48 (6.58%) Mobile App
3 39 (5.34%) User Experience
4 33 (4.52%) Data Structures
5 29 (3.97%) Self-Motivation
6 28 (3.84%) Algorithms
7 18 (2.47%) Virtual Team
8 16 (2.19%) LIMS
9 11 (1.51%) Cloud Native
10 10 (1.37%) Analytical Skills
10 10 (1.37%) NHS
11 9 (1.23%) e-Learning
11 9 (1.23%) SCORM
11 9 (1.23%) Video\Live Streaming
12 8 (1.10%) Credit Risk
13 6 (0.82%) Public Cloud
14 5 (0.68%) N-Tier
15 4 (0.55%) Derivative
15 4 (0.55%) Fixed Income
16 3 (0.41%) Learning Management System
Operating Systems
1 58 (7.95%) Apple iOS
2 53 (7.26%) Android
3 44 (6.03%) Linux
4 25 (3.42%) Windows
5 9 (1.23%) Unix
6 5 (0.68%) Windows Server
7 2 (0.27%) Red Hat Enterprise Linux
7 2 (0.27%) Windows Server 2008
8 1 (0.14%) VMS
Processes & Methodologies
1 461 (63.15%) Agile Software Development
2 213 (29.18%) BDD
3 202 (27.67%) DevOps
4 193 (26.44%) Scrum
5 184 (25.21%) Microservices
6 154 (21.10%) Continuous Integration
7 143 (19.59%) Software Engineering
8 118 (16.16%) OO
9 112 (15.34%) MVC
10 109 (14.93%) Continuous Delivery
11 102 (13.97%) SOLID
12 100 (13.70%) Fintech
13 99 (13.56%) Mentoring
14 76 (10.41%) Unit Testing
15 67 (9.18%) Test Automation
16 56 (7.67%) Front End Development
17 54 (7.40%) Computer Science
18 52 (7.12%) Problem-Solving
19 43 (5.89%) Kanban
20 42 (5.75%) Continuous Improvement
Programming Languages
1 290 (39.73%) JavaScript
2 265 (36.30%) C#
3 238 (32.60%) Java
4 216 (29.59%) SQL
5 97 (13.29%) Python
6 76 (10.41%) TypeScript
7 54 (7.40%) Java 8
8 47 (6.44%) Ruby
9 41 (5.62%) C++
9 41 (5.62%) Kotlin
9 41 (5.62%) Scala
10 40 (5.48%) PHP
11 27 (3.70%) Go
11 27 (3.70%) Objective-C
12 26 (3.56%) Apple Swift
13 20 (2.74%) ES6
14 16 (2.19%) VB
15 14 (1.92%) T-SQL
16 11 (1.51%) F#
17 8 (1.10%) Groovy
Qualifications
1 34 (4.66%) Degree
2 22 (3.01%) Security Cleared
3 16 (2.19%) Computer Science Degree
4 10 (1.37%) SC Cleared
5 3 (0.41%) AWS Certification
6 2 (0.27%) Master's Degree
6 2 (0.27%) OSCE
6 2 (0.27%) OSCP
6 2 (0.27%) Postgraduate
7 1 (0.14%) ISEB
7 1 (0.14%) ISTQB
7 1 (0.14%) PMI Certification
Quality Assurance & Compliance
1 33 (4.52%) QA
2 2 (0.27%) GDPR
2 2 (0.27%) ISO/IEC 27001
2 2 (0.27%) NIST
2 2 (0.27%) PCI DSS
System Software
1 156 (21.37%) Docker
2 6 (0.82%) Active Directory
3 4 (0.55%) NDS
3 4 (0.55%) NetIQ eDirectory
4 1 (0.14%) VMware Infrastructure
4 1 (0.14%) vSphere
Systems Management
1 94 (12.88%) Kubernetes
2 60 (8.22%) Terraform
3 28 (3.84%) Ansible
4 4 (0.55%) Tivoli
5 2 (0.27%) Consul
5 2 (0.27%) linkerd
5 2 (0.27%) Prometheus
5 2 (0.27%) Puppet
5 2 (0.27%) Sysdig
6 1 (0.14%) MIIS
6 1 (0.14%) NetIQ Identity Manager
6 1 (0.14%) Rundeck
Vendors
1 61 (8.36%) Microsoft
2 22 (3.01%) Google
3 13 (1.78%) Oracle
3 13 (1.78%) SAP
4 12 (1.64%) Apple
4 12 (1.64%) Xamarin
5 10 (1.37%) Adobe
6 6 (0.82%) MuleSoft
7 5 (0.68%) CyberArk
7 5 (0.68%) ForgeRock
7 5 (0.68%) Talend
7 5 (0.68%) TIBCO
7 5 (0.68%) webMethods
7 5 (0.68%) WooCommerce
8 4 (0.55%) Atlassian
8 4 (0.55%) Databricks
8 4 (0.55%) Okta
8 4 (0.55%) Salesforce.com
8 4 (0.55%) Zend
9 3 (0.41%) Cisco