Period
to 29 November 2021

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 29 November 2021 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > Work from Home
6 months to
29 Nov 2021
Same period 2020 Same period 2019
Rank 43 29 24
Rank change year-on-year -14 -5 -1
Permanent jobs citing TDD 1,871 717 705
As % of all permanent jobs with a WFH option 6.42% 8.72% 9.11%
As % of the Processes & Methodologies category 6.77% 9.29% 9.71%
Number of salaries quoted 1,364 664 649
10th Percentile £40,000 £41,250 £35,000
25th Percentile £47,500 £47,500 £42,500
Median annual salary (50th Percentile) £60,250 £60,000 £55,000
Median % change year-on-year +0.42% +9.09% +10.00%
75th Percentile £77,500 £77,500 £72,500
90th Percentile £90,875 £85,000 £85,000
UK median annual salary £62,500 £60,000 £57,500
% change year-on-year +4.17% +4.35% +4.55%

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 27,652 7,718 7,259
As % of all permanent jobs with a WFH option 94.86% 93.81% 93.79%
Number of salaries quoted 21,608 6,929 6,374
10th Percentile £37,500 £35,750 £35,000
25th Percentile £46,250 £42,500 £42,500
Median annual salary (50th Percentile) £60,000 £55,000 £57,124
Median % change year-on-year +9.09% -3.72% +3.86%
75th Percentile £78,750 £71,250 £75,000
90th Percentile £95,000 £85,000 £87,500
UK median annual salary £60,000 £55,000 £52,500
% change year-on-year +9.09% +4.76% +2.44%

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 29 November 2021.

TDD salary histogram for jobs with a WFH option

For the 6 months to 29 November 2021, 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 1,278 (68.31%) Agile Software Development
2 783 (41.85%) JavaScript
3 649 (34.69%) BDD
4 647 (34.58%) Microservices
5 614 (32.82%) React
6 604 (32.28%) C#
7 584 (31.21%) Azure
8 566 (30.25%) .NET
9 523 (27.95%) DevOps
10 515 (27.53%) Software Engineering
11 499 (26.67%) AWS
12 490 (26.19%) Scrum
13 486 (25.98%) SQL
13 486 (25.98%) Full Stack Development
14 467 (24.96%) Java
15 431 (23.04%) Docker
16 426 (22.77%) Test Automation
17 408 (21.81%) Git (software)
18 395 (21.11%) HTML
19 358 (19.13%) Finance
20 354 (18.92%) CSS
21 351 (18.76%) Node.js
22 349 (18.65%) Social Skills
23 331 (17.69%) MVC
24 327 (17.48%) SOLID
25 323 (17.26%) RESTful
26 316 (16.89%) .NET Core
27 290 (15.50%) TypeScript
28 273 (14.59%) Python
29 266 (14.22%) AngularJS

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 75 (4.01%) Elasticsearch
2 57 (3.05%) CMS
3 55 (2.94%) Confluence
4 39 (2.08%) EPiServer
5 33 (1.76%) WordPress
6 28 (1.50%) Apache
7 17 (0.91%) nginx
8 12 (0.64%) Apache Solr
8 12 (0.64%) Umbraco
9 11 (0.59%) SharePoint
10 8 (0.43%) OnBase
10 8 (0.43%) WebSphere
11 7 (0.37%) Apache Spark
11 7 (0.37%) OpenStack
12 6 (0.32%) Drupal
13 5 (0.27%) Tomcat
14 4 (0.21%) Ethereum
14 4 (0.21%) NServiceBus
15 3 (0.16%) Apache Airflow
15 3 (0.16%) Cloud Foundry
Applications
1 26 (1.39%) Microsoft Office
2 11 (0.59%) Sketch
3 10 (0.53%) Figma
4 7 (0.37%) InVision
5 3 (0.16%) Adobe Creative Suite
5 3 (0.16%) Chatbot
5 3 (0.16%) EngageOne
6 2 (0.11%) MS Visio
7 1 (0.053%) Zeplin
Business Applications
1 43 (2.30%) Dynamics CRM
2 35 (1.87%) Payment Gateway
3 8 (0.43%) Shopify
4 5 (0.27%) Oracle BPM
5 4 (0.21%) MetaTrader
6 2 (0.11%) Distributed Ledger
6 2 (0.11%) Magento
6 2 (0.11%) NetSuite
6 2 (0.11%) R3 Corda
7 1 (0.053%) SDL Web 8
Cloud Services
1 584 (31.21%) Azure
2 499 (26.67%) AWS
3 169 (9.03%) GCP
4 125 (6.68%) Serverless
5 107 (5.72%) SaaS
6 91 (4.86%) GitHub
7 75 (4.01%) Amazon S3
8 73 (3.90%) Amazon EC2
9 59 (3.15%) AWS Lambda
10 41 (2.19%) Amazon ECS
11 34 (1.82%) OpenShift
12 33 (1.76%) Azure Service Bus
12 33 (1.76%) npm
13 32 (1.71%) Cloudflare
13 32 (1.71%) CloudFront
14 28 (1.50%) Amazon SQS
14 28 (1.50%) PaaS
15 22 (1.18%) Codefresh
16 21 (1.12%) Azure Functions
17 19 (1.02%) Cloud Computing
Communications & Networking
1 32 (1.71%) AMQP
1 32 (1.71%) DNS
2 26 (1.39%) HTTP
3 23 (1.23%) Internet
4 3 (0.16%) DSL
4 3 (0.16%) Firewall
5 2 (0.11%) HTTPS
5 2 (0.11%) VoIP
6 1 (0.053%) Network Security
6 1 (0.053%) SSH
6 1 (0.053%) TCP/IP
Database & Business Intelligence
1 241 (12.88%) NoSQL
2 187 (9.99%) SQL Server
3 159 (8.50%) MySQL
4 131 (7.00%) MongoDB
5 127 (6.79%) PostgreSQL
6 116 (6.20%) Relational Database
7 71 (3.79%) Amazon DynamoDB
8 68 (3.63%) Amazon RDS
9 67 (3.58%) Redis
10 45 (2.41%) Big Data
11 32 (1.71%) Amazon Athena
11 32 (1.71%) Blockchain
12 28 (1.50%) RDBMS
13 25 (1.34%) Amazon Aurora
14 24 (1.28%) Hadoop
15 18 (0.96%) Azure SQL Database
16 11 (0.59%) HBase
17 10 (0.53%) Hazelcast
18 9 (0.48%) Data Lake
18 9 (0.48%) Event Store
Development Applications
1 408 (21.81%) Git (software)
2 156 (8.34%) Jenkins
3 131 (7.00%) Selenium
4 103 (5.51%) JIRA
5 81 (4.33%) Cypress.io
6 72 (3.85%) GitLab
7 71 (3.79%) Team Foundation Server
8 69 (3.69%) CircleCI
9 66 (3.53%) NUnit
10 59 (3.15%) Cucumber
11 53 (2.83%) Octopus Deploy
11 53 (2.83%) PHPUnit
12 51 (2.73%) webpack
13 46 (2.46%) Postman
14 42 (2.24%) Moq
15 35 (1.87%) TeamCity
16 33 (1.76%) Bitbucket
16 33 (1.76%) JUnit
17 30 (1.60%) SpecFlow
17 30 (1.60%) Travis CI
General
1 358 (19.13%) Finance
2 349 (18.65%) Social Skills
3 156 (8.34%) Retail
4 93 (4.97%) Analytical Skills
5 91 (4.86%) Public Sector
6 85 (4.54%) Games
7 84 (4.49%) Banking
8 71 (3.79%) Telecoms
9 70 (3.74%) Marketing
10 57 (3.05%) Billing
10 57 (3.05%) Legal
11 53 (2.83%) Publishing
12 46 (2.46%) Inclusion and Diversity
13 36 (1.92%) Electronics
14 34 (1.82%) Automotive
15 27 (1.44%) Manufacturing
16 26 (1.39%) Advertising
17 25 (1.34%) Law
18 23 (1.23%) Financial Institution
19 10 (0.53%) Documentation Skills
Job Titles
1 1,180 (63.07%) Developer
2 292 (15.61%) Senior Developer
3 224 (11.97%) Software Engineer
4 215 (11.49%) .NET Developer
5 212 (11.33%) C# Developer
6 207 (11.06%) Full Stack Developer
7 192 (10.26%) Java Developer
8 176 (9.41%) Software Developer
9 168 (8.98%) PHP Developer
10 138 (7.38%) React Developer
11 116 (6.20%) C# .NET Developer
12 112 (5.99%) Front End Developer (Client-Side Developer)
13 79 (4.22%) Architect
14 78 (4.17%) Senior C# Developer
15 77 (4.12%) Senior Software Engineer
16 76 (4.06%) Senior .NET Developer
17 72 (3.85%) Python Developer
18 60 (3.21%) .NET Software Developer
19 56 (2.99%) Java Engineer
20 52 (2.78%) C# Software Developer
Libraries, Frameworks & Software Standards
1 614 (32.82%) React
2 566 (30.25%) .NET
3 395 (21.11%) HTML
4 354 (18.92%) CSS
5 351 (18.76%) Node.js
6 323 (17.26%) RESTful
7 316 (16.89%) .NET Core
8 266 (14.22%) AngularJS
9 250 (13.36%) REST
10 223 (11.92%) Web Services
11 160 (8.55%) Spring
12 157 (8.39%) HTML5
13 137 (7.32%) ASP.NET
14 135 (7.22%) Jest
15 124 (6.63%) Kafka
16 123 (6.57%) .NET Framework
17 107 (5.72%) CSS3
18 101 (5.40%) Spring Boot
19 100 (5.34%) GraphQL
20 99 (5.29%) Redux
Miscellaneous
1 164 (8.77%) Self-Motivation
2 133 (7.11%) Greenfield Project
3 128 (6.84%) User Experience
4 100 (5.34%) Virtual Team
5 93 (4.97%) Mobile App
6 88 (4.70%) Legacy Code
7 77 (4.12%) Enterprise Software
8 63 (3.37%) Cloud Native
9 43 (2.30%) Algorithms
10 38 (2.03%) Video\Live Streaming
11 35 (1.87%) Data Structures
12 28 (1.50%) Video on Demand
13 27 (1.44%) Public Cloud
14 26 (1.39%) iPad
15 24 (1.28%) NHS
16 22 (1.18%) Blog
16 22 (1.18%) Legacy Systems
17 19 (1.02%) Credit Risk
17 19 (1.02%) Legacy Applications
18 17 (0.91%) Foreign Exchange (FX)
Operating Systems
1 134 (7.16%) Linux
2 61 (3.26%) Android
3 55 (2.94%) Apple iOS
4 39 (2.08%) Windows
5 34 (1.82%) Unix
6 8 (0.43%) Mac OS X
7 7 (0.37%) Ubuntu
8 6 (0.32%) SUSE
9 4 (0.21%) Mac OS
10 2 (0.11%) Red Hat Enterprise Linux
11 1 (0.053%) CentOS
11 1 (0.053%) Windows Server
Processes & Methodologies
1 1,278 (68.31%) Agile Software Development
2 649 (34.69%) BDD
3 647 (34.58%) Microservices
4 523 (27.95%) DevOps
5 515 (27.53%) Software Engineering
6 490 (26.19%) Scrum
7 486 (25.98%) Full Stack Development
8 426 (22.77%) Test Automation
9 331 (17.69%) MVC
10 327 (17.48%) SOLID
11 255 (13.63%) Continuous Integration
12 253 (13.52%) Mentoring
13 242 (12.93%) Front End Development
14 227 (12.13%) Unit Testing
15 203 (10.85%) OO
16 198 (10.58%) Problem-Solving
17 180 (9.62%) Fintech
18 172 (9.19%) Clean Code
19 169 (9.03%) OOP
20 154 (8.23%) SOA
Programming Languages
1 783 (41.85%) JavaScript
2 604 (32.28%) C#
3 486 (25.98%) SQL
4 467 (24.96%) Java
5 290 (15.50%) TypeScript
6 273 (14.59%) Python
7 262 (14.00%) PHP
8 95 (5.08%) Kotlin
8 95 (5.08%) Scala
9 91 (4.86%) C
10 90 (4.81%) ES6
11 74 (3.96%) Java 8
12 63 (3.37%) Ruby
13 54 (2.89%) PHP 7
14 51 (2.73%) T-SQL
15 30 (1.60%) C++
16 27 (1.44%) Go
16 27 (1.44%) Java 11
17 24 (1.28%) PowerShell
18 19 (1.02%) VB.NET
Qualifications
1 129 (6.89%) Degree
2 87 (4.65%) Computer Science Degree
3 31 (1.66%) Security Cleared
4 22 (1.18%) BPSS Clearance
5 19 (1.02%) SC Cleared
6 16 (0.86%) ISTQB
7 12 (0.64%) Master's Degree
8 9 (0.48%) ISEB
9 5 (0.27%) ISTQB Foundation Certification
10 4 (0.21%) SANS
11 2 (0.11%) Microsoft Certification
12 1 (0.053%) AWS Certification
12 1 (0.053%) CBAP
12 1 (0.053%) IIBA
12 1 (0.053%) Numerate Degree
12 1 (0.053%) PMI Certification
Quality Assurance & Compliance
1 190 (10.15%) QA
2 61 (3.26%) Accessibility
3 26 (1.39%) GDPR
4 13 (0.69%) WCAG
5 5 (0.27%) SLA
6 2 (0.11%) Data Quality
6 2 (0.11%) PCI DSS
6 2 (0.11%) PSD2
7 1 (0.053%) NCSC
System Software
1 431 (23.04%) Docker
2 5 (0.27%) Varnish
3 4 (0.21%) Apache ZooKeeper
4 3 (0.16%) Virtual Machines
5 1 (0.053%) Active Directory
5 1 (0.053%) Postfix
Systems Management
1 235 (12.56%) Kubernetes
2 97 (5.18%) Terraform
3 32 (1.71%) Ansible
3 32 (1.71%) Grafana
4 17 (0.91%) Amdocs OSS
5 14 (0.75%) Single Sign-On
6 8 (0.43%) Prometheus
6 8 (0.43%) Puppet
6 8 (0.43%) Rancher
7 7 (0.37%) MIIS
7 7 (0.37%) Opscode Chef
8 4 (0.21%) Capistrano
8 4 (0.21%) Hadoop YARN
9 3 (0.16%) Kibana
9 3 (0.16%) logstash
9 3 (0.16%) ZABBIX
10 2 (0.11%) Docker Swarm
11 1 (0.053%) HP Fortify
11 1 (0.053%) Nessus
11 1 (0.053%) Oozie
Vendors
1 197 (10.53%) Microsoft
2 86 (4.60%) Google
3 61 (3.26%) Oracle
4 32 (1.71%) SAP
4 32 (1.71%) WooCommerce
5 23 (1.23%) Mercator
6 19 (1.02%) IBM
7 17 (0.91%) Amdocs
7 17 (0.91%) Xamarin
8 15 (0.80%) Atlassian
9 11 (0.59%) Zend
10 10 (0.53%) Dell
11 9 (0.48%) Okta
11 9 (0.48%) Pega
12 8 (0.43%) Elastic Path
12 8 (0.43%) ForgeRock
12 8 (0.43%) Guidewire
12 8 (0.43%) Hyland
12 8 (0.43%) Salesforce.com
12 8 (0.43%) Splunk