Period
to 26 November 2020

The following table provides summary statistics for permanent job vacancies advertised in England 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 26 November 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > England
6 months to
26 Nov 2020
Same period 2019 Same period 2018
Rank 29 27 24
Rank change year-on-year -2 -3 -4
Permanent jobs citing TDD 3,859 8,730 12,548
As % of all permanent jobs advertised in England 7.69% 6.96% 8.38%
As % of the Processes & Methodologies category 8.33% 7.55% 9.10%
Number of salaries quoted 4,005 7,858 11,351
Median annual salary £60,000 £60,000 £55,000
Median salary % change year-on-year - +9.09% +4.76%
10th Percentile £40,000 £35,000 £33,750
90th Percentile £90,000 £87,500 £86,250
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 advertised in England with a requirement for process or methodology skills.

All Process and Methodology Skills
England
Permanent vacancies with a requirement for process or methodology skills 46,346 115,696 137,945
As % of all permanent IT jobs advertised in England 92.32% 92.21% 92.08%
Number of salaries quoted 38,781 92,429 110,929
Median annual salary £55,000 £52,500 £52,500
Median salary % change year-on-year +4.76% - +5.00%
10th Percentile £33,000 £30,000 £29,650
90th Percentile £90,000 £87,500 £85,000
UK median annual salary £55,000 £52,500 £50,250
% change year-on-year +4.76% +4.48% +0.50%

TDD
Job Vacancy Trend in England

Job postings citing TDD as a proportion of all IT jobs advertised in England.

Job vacancy trend for TDD in England

TDD
Salary Trend in England

3-month moving average salary quoted in jobs citing TDD in England.

Salary trend for TDD in England

TDD
Salary Histogram in England

Salary distribution for jobs citing TDD in England over the 6 months to 26 November 2020.

Salary histogram for TDD in England

TDD
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the England region over the 6 months to 26 November 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
London +7 2,045 £70,000 +3.70% 433
South East +4 639 £55,000 +6.80% 146
North of England -4 562 £50,000 - 240
North West -4 296 £55,000 +4.76% 134
South West +7 243 £50,000 +5.26% 48
Midlands +19 235 £55,000 +10.00% 90
Yorkshire +5 208 £50,000 - 75
West Midlands +38 182 £55,000 +10.00% 53
East of England -13 91 £62,500 +13.64% 43
North East +7 58 £47,500 +5.56% 31
East Midlands -12 53 £52,500 +16.67% 36
TDD
UK

For the 6 months to 26 November 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 England region with a requirement for TDD.

1 2,587 (67.04%) Agile Software Development
2 1,753 (45.43%) JavaScript
3 1,360 (35.24%) C#
4 1,358 (35.19%) BDD
5 1,323 (34.28%) .NET
6 1,264 (32.75%) Java
7 1,077 (27.91%) Microservices
8 1,032 (26.74%) AWS
9 1,025 (26.56%) DevOps
10 956 (24.77%) Docker
11 949 (24.59%) Azure
12 920 (23.84%) SQL
13 909 (23.56%) Software Engineering
14 868 (22.49%) AngularJS
15 864 (22.39%) Scrum
16 831 (21.53%) React
17 751 (19.46%) Test Automation
18 737 (19.10%) .NET Core
19 734 (19.02%) Python
20 723 (18.74%) CSS
21 713 (18.48%) HTML
22 706 (18.29%) Node.js
23 692 (17.93%) Git (software)
24 659 (17.08%) MVC
25 648 (16.79%) Finance
26 628 (16.27%) Continuous Integration
27 581 (15.06%) SQL Server
28 558 (14.46%) Kubernetes
29 532 (13.79%) REST
30 521 (13.50%) Spring

TDD
Co-occurring IT Skills in England 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
1 144 (3.73%) Elasticsearch
2 91 (2.36%) Confluence
3 68 (1.76%) CMS
4 49 (1.27%) Tomcat
5 44 (1.14%) Apache Spark
6 43 (1.11%) IIS
7 39 (1.01%) nginx
8 30 (0.78%) Apache
9 25 (0.65%) NServiceBus
10 24 (0.62%) JBoss
10 24 (0.62%) WebSphere
11 19 (0.49%) Umbraco
12 17 (0.44%) SharePoint
12 17 (0.44%) WordPress
13 16 (0.41%) Oracle Workflow
14 12 (0.31%) Moodle
15 10 (0.26%) Mule
15 10 (0.26%) OpenStack
16 9 (0.23%) EPiServer
17 8 (0.21%) Mule ESB
Applications
1 11 (0.29%) Microsoft Excel
2 10 (0.26%) Adobe Creative Suite
2 10 (0.26%) InVision
2 10 (0.26%) Sketch
3 7 (0.18%) Figma
3 7 (0.18%) Microsoft Office
4 5 (0.13%) MS Visio
5 4 (0.10%) Adobe Illustrator
5 4 (0.10%) Spreadsheet
6 1 (0.026%) Chatbot
6 1 (0.026%) Microsoft Project
6 1 (0.026%) Photoshop
Business Applications
1 21 (0.54%) Dynamics CRM
2 12 (0.31%) Magento
3 7 (0.18%) IBM Operational Decision Manager
3 7 (0.18%) Payment Gateway
3 7 (0.18%) Shopify
4 2 (0.052%) Distributed Ledger
4 2 (0.052%) Salesforce.com CRM
5 1 (0.026%) nopCommerce
5 1 (0.026%) Odoo
5 1 (0.026%) Sentinel
Cloud Services
1 1,032 (26.74%) AWS
2 949 (24.59%) Azure
3 254 (6.58%) GCP
4 227 (5.88%) Serverless
5 180 (4.66%) SaaS
6 128 (3.32%) AWS Lambda
7 117 (3.03%) GitHub
8 84 (2.18%) npm
9 80 (2.07%) Amazon EC2
10 78 (2.02%) AWS CloudFormation
11 66 (1.71%) PaaS
12 55 (1.43%) Cloud Computing
13 45 (1.17%) Amazon ECS
14 43 (1.11%) Azure Data Factory
15 35 (0.91%) Logic Apps
16 32 (0.83%) Amazon S3
17 29 (0.75%) OpenShift
18 23 (0.60%) Power Platform
19 22 (0.57%) Amazon SQS
19 22 (0.57%) Slack
Communications & Networking
1 50 (1.30%) Skype
2 48 (1.24%) HTTP
3 41 (1.06%) Internet
4 16 (0.41%) TCP/IP
5 13 (0.34%) Network Security
6 8 (0.21%) DNS
6 8 (0.21%) H.323
7 4 (0.10%) SNMP
8 3 (0.078%) AMQP
8 3 (0.078%) FIX Connectivity
8 3 (0.078%) SSH
8 3 (0.078%) VPN
8 3 (0.078%) Wi-Fi
9 2 (0.052%) DSL
9 2 (0.052%) IPv6
9 2 (0.052%) Software-Defined Radio
9 2 (0.052%) VLAN
9 2 (0.052%) Wireless
9 2 (0.052%) Wireshark
9 2 (0.052%) ZigBee
Database & Business Intelligence
1 581 (15.06%) SQL Server
2 505 (13.09%) NoSQL
3 297 (7.70%) MongoDB
4 280 (7.26%) MySQL
5 231 (5.99%) PostgreSQL
6 206 (5.34%) Relational Database
7 152 (3.94%) Redis
8 70 (1.81%) Big Data
9 67 (1.74%) Amazon DynamoDB
10 54 (1.40%) Apache Cassandra
11 52 (1.35%) Data Warehouse
12 46 (1.19%) Hadoop
13 41 (1.06%) Cosmos DB
14 39 (1.01%) SQL Server 2019
15 38 (0.98%) Amazon RDS
16 37 (0.96%) SQL Server Reporting Services
17 30 (0.78%) Azure SQL Database
18 29 (0.75%) SQL Server Integration Services
19 23 (0.60%) Blockchain
19 23 (0.60%) SQL Server Analysis Services
Development Applications
1 692 (17.93%) Git (software)
2 395 (10.24%) Selenium
3 374 (9.69%) Jenkins
4 238 (6.17%) JIRA
5 156 (4.04%) Cucumber
5 156 (4.04%) JUnit
6 152 (3.94%) TeamCity
7 137 (3.55%) Maven
8 117 (3.03%) NUnit
9 116 (3.01%) GitLab
10 114 (2.95%) webpack
11 97 (2.51%) Cypress.io
12 96 (2.49%) Mockito
13 89 (2.31%) Visual Studio
14 88 (2.28%) Bitbucket
15 86 (2.23%) WebDriver
16 85 (2.20%) Octopus Deploy
17 83 (2.15%) SpecFlow
18 77 (2.00%) SoapUI
19 62 (1.61%) Jasmine
General
1 648 (16.79%) Finance
2 113 (2.93%) Banking
3 97 (2.51%) Public Sector
4 95 (2.46%) Retail
5 81 (2.10%) Marketing
6 80 (2.07%) Games
7 72 (1.87%) Front Office
8 63 (1.63%) Law
9 48 (1.24%) Telecoms
10 45 (1.17%) Advertising
10 45 (1.17%) Manufacturing
11 40 (1.04%) Electronics
12 34 (0.88%) Publishing
13 24 (0.62%) Financial Institution
14 22 (0.57%) Investment Banking
15 18 (0.47%) Back Office
16 10 (0.26%) Online Betting
17 7 (0.18%) Local Government
18 6 (0.16%) Housing Association
18 6 (0.16%) Retail Banking
Job Titles
1 2,474 (64.11%) Developer
2 629 (16.30%) .NET Developer
3 577 (14.95%) Senior Developer
4 515 (13.35%) Java Developer
5 444 (11.51%) Software Engineer
6 443 (11.48%) C# Developer
7 328 (8.50%) C# .NET Developer
8 322 (8.34%) Full Stack Developer
9 304 (7.88%) Software Developer
10 172 (4.46%) Lead Developer
11 169 (4.38%) Front End Developer (Client-Side Developer)
12 153 (3.96%) PHP Developer
13 143 (3.71%) Senior Java Developer
14 141 (3.65%) React Developer
15 138 (3.58%) Python Engineer
16 135 (3.50%) Java Engineer
17 128 (3.32%) JavaScript Developer
18 126 (3.27%) Senior Software Engineer
19 121 (3.14%) Senior .NET Developer
20 119 (3.08%) DevOps Engineer
Libraries, Frameworks & Software Standards
1 1,323 (34.28%) .NET
2 868 (22.49%) AngularJS
3 831 (21.53%) React
4 737 (19.10%) .NET Core
5 723 (18.74%) CSS
6 713 (18.48%) HTML
7 706 (18.29%) Node.js
8 532 (13.79%) REST
9 521 (13.50%) Spring
10 501 (12.98%) ASP.NET
11 478 (12.39%) RESTful
12 432 (11.19%) Web Services
13 393 (10.18%) .NET Framework
14 345 (8.94%) Vue.js
15 319 (8.27%) ASP.NET MVC
16 305 (7.90%) Kafka
17 302 (7.83%) Spring Boot
18 280 (7.26%) ASP.NET Web API
19 263 (6.82%) HTML5
20 220 (5.70%) CSS3
Miscellaneous
1 347 (8.99%) Greenfield Project
2 183 (4.74%) User Experience
3 167 (4.33%) Mobile App
4 132 (3.42%) Algorithms
5 110 (2.85%) Analytical Skills
6 84 (2.18%) Self-Motivation
7 80 (2.07%) Data Structures
8 64 (1.66%) Cloud Native
9 58 (1.50%) Equities
10 55 (1.43%) Enterprise Software
11 48 (1.24%) Virtual Team
12 46 (1.19%) Fixed Income
13 33 (0.86%) Media Streaming
14 28 (0.73%) Derivative
15 27 (0.70%) Foreign Exchange (FX)
15 27 (0.70%) Video\Live Streaming
16 26 (0.67%) Hedge funds
17 25 (0.65%) Social Network
18 24 (0.62%) Blog
19 21 (0.54%) Over-the-Top Content
Operating Systems
1 293 (7.59%) Linux
2 144 (3.73%) Windows
3 133 (3.45%) Android
4 114 (2.95%) Apple iOS
5 47 (1.22%) Unix
6 13 (0.34%) VMS
7 11 (0.29%) CentOS
7 11 (0.29%) Ubuntu
7 11 (0.29%) Windows Server
8 9 (0.23%) Red Hat Enterprise Linux
9 3 (0.078%) Windows Server 2008
10 2 (0.052%) AIX
11 1 (0.026%) Embedded Linux
11 1 (0.026%) Mac OS
11 1 (0.026%) tvOS
Processes & Methodologies
1 2,587 (67.04%) Agile Software Development
2 1,358 (35.19%) BDD
3 1,077 (27.91%) Microservices
4 1,025 (26.56%) DevOps
5 909 (23.56%) Software Engineering
6 864 (22.39%) Scrum
7 751 (19.46%) Test Automation
8 659 (17.08%) MVC
9 628 (16.27%) Continuous Integration
10 486 (12.59%) OO
11 412 (10.68%) Mentoring
12 398 (10.31%) Unit Testing
13 372 (9.64%) Fintech
14 365 (9.46%) SOLID
15 335 (8.68%) Pair Programming
16 299 (7.75%) Front End Development
17 298 (7.72%) Continuous Delivery
18 273 (7.07%) Problem-Solving
19 265 (6.87%) SDLC
20 241 (6.25%) OOP
Programming Languages
1 1,753 (45.43%) JavaScript
2 1,360 (35.24%) C#
3 1,264 (32.75%) Java
4 920 (23.84%) SQL
5 734 (19.02%) Python
6 399 (10.34%) TypeScript
7 285 (7.39%) Java 8
8 253 (6.56%) PHP
9 203 (5.26%) Go
10 189 (4.90%) Scala
11 180 (4.66%) Kotlin
12 178 (4.61%) C++
13 158 (4.09%) Ruby
14 95 (2.46%) ES6
15 91 (2.36%) T-SQL
16 69 (1.79%) PowerShell
17 66 (1.71%) C
18 61 (1.58%) Apple Swift
19 49 (1.27%) Objective-C
20 42 (1.09%) Shell Script
Qualifications
1 339 (8.78%) Degree
2 228 (5.91%) Security Cleared
3 178 (4.61%) SC Cleared
4 129 (3.34%) Computer Science Degree
5 38 (0.98%) ISTQB
6 31 (0.80%) PhD
7 28 (0.73%) DV Cleared
8 19 (0.49%) ISEB
9 13 (0.34%) ISTQB Foundation Certification
10 11 (0.29%) Master's Degree
10 11 (0.29%) Numerate Degree
11 6 (0.16%) ISEB Practitioner
11 6 (0.16%) Microsoft Certification
11 6 (0.16%) OSCE
11 6 (0.16%) OSCP
12 5 (0.13%) AWS Certification
12 5 (0.13%) ISTQB Advanced Certification
13 4 (0.10%) PMI Certification
14 2 (0.052%) MCPD
14 2 (0.052%) Postgraduate
Quality Assurance & Compliance
1 268 (6.94%) QA
2 14 (0.36%) GDPR
3 12 (0.31%) Data Quality
4 8 (0.21%) ISO/IEC 27001
4 8 (0.21%) PCI DSS
5 6 (0.16%) NIST
6 5 (0.13%) ISO 9001
7 3 (0.078%) WCAG
8 2 (0.052%) NCSC
8 2 (0.052%) SLA
System Software
1 956 (24.77%) Docker
2 35 (0.91%) Active Directory
3 25 (0.65%) VMware Infrastructure
4 19 (0.49%) NDS
5 18 (0.47%) NetIQ eDirectory
6 14 (0.36%) vSphere
7 11 (0.29%) Postfix
8 8 (0.21%) Hyper-V
8 8 (0.21%) KVM
9 3 (0.078%) Firmware
9 3 (0.078%) LXC
10 1 (0.026%) Cronacle
10 1 (0.026%) HDFS
Systems Management
1 558 (14.46%) Kubernetes
2 302 (7.83%) Terraform
3 164 (4.25%) Ansible
4 73 (1.89%) Puppet
5 50 (1.30%) Opscode Chef
6 28 (0.73%) Istio
7 22 (0.57%) NetIQ Identity Manager
8 15 (0.39%) Tivoli
9 14 (0.36%) Prometheus
10 13 (0.34%) Marathon
10 13 (0.34%) Mesos
11 11 (0.29%) Kibana
12 10 (0.26%) Oracle Identity Manager
12 10 (0.26%) Tivoli Identity Manager
13 7 (0.18%) Consul
14 6 (0.16%) Grafana
14 6 (0.16%) linkerd
14 6 (0.16%) MIIS
14 6 (0.16%) Single Sign-On
15 5 (0.13%) HP Quality Center
Vendors
1 365 (9.46%) Microsoft
2 116 (3.01%) Oracle
3 102 (2.64%) Google
4 51 (1.32%) Atlassian
5 38 (0.98%) Zend
6 37 (0.96%) SAP
7 33 (0.86%) Xamarin
8 31 (0.80%) IBM
9 26 (0.67%) VMware
10 25 (0.65%) NetIQ
11 23 (0.60%) ForgeRock
12 21 (0.54%) Adobe
12 21 (0.54%) Salesforce.com
13 18 (0.47%) MuleSoft
14 17 (0.44%) Sony
15 16 (0.41%) Facebook
16 15 (0.39%) Okta
17 14 (0.36%) Pega
18 12 (0.31%) Apple
19 11 (0.29%) WSO2