Period
to 31 October 2020

The following table provides summary statistics for permanent job vacancies advertised in London 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 31 October 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
England > London
6 months to
31 Oct 2020
Same period 2019 Same period 2018
Rank 20 26 23
Rank change year-on-year +6 -3 -2
Permanent jobs citing TDD 1,889 4,563 6,413
As % of all permanent jobs advertised in London 9.48% 8.36% 9.46%
As % of the Processes & Methodologies category 10.16% 8.96% 10.21%
Number of salaries quoted 1,914 4,092 5,493
Median annual salary £70,000 £67,500 £65,000
Median salary % change year-on-year +3.70% +3.85% +8.33%
10th Percentile £48,750 £40,050 £38,750
90th Percentile £97,500 £95,000 £95,000
England median annual salary £60,000 £60,000 £55,000
% change year-on-year - +9.09% +4.76%

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 London with a requirement for process or methodology skills.

All Process and Methodology Skills
London
Permanent vacancies with a requirement for process or methodology skills 18,590 50,925 62,824
As % of all permanent IT jobs advertised in London 93.29% 93.25% 92.71%
Number of salaries quoted 15,501 41,087 50,507
Median annual salary £70,000 £65,000 £62,500
Median salary % change year-on-year +7.69% +4.00% +4.17%
10th Percentile £42,500 £36,250 £35,000
90th Percentile £105,000 £100,000 £95,000
England median annual salary £55,500 £52,500 £52,500
% change year-on-year +5.71% - +5.00%

TDD
Job Vacancy Trend in London

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

Job vacancy trend for TDD in London

TDD
Salary Trend in London

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

Salary trend for TDD in London

TDD
Salary Histogram in London

Salary distribution for jobs citing TDD in London over the 6 months to 31 October 2020.

Salary histogram for TDD in London

TDD
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the London region over the 6 months to 31 October 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
Central London +8 466 £70,000 - 182
South London +32 92 £62,500 +4.17% 7
West London -22 33 £57,500 -8.00% 55
East London +30 24 £58,500 +1.74% 24
North London +26 5 £50,000 -20.00% 3
TDD
England

For the 6 months to 31 October 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 London region with a requirement for TDD.

1 1,270 (67.23%) Agile Software Development
2 819 (43.36%) JavaScript
3 747 (39.54%) BDD
4 677 (35.84%) Java
5 621 (32.87%) Microservices
6 596 (31.55%) AWS
7 514 (27.21%) DevOps
8 513 (27.16%) .NET
9 502 (26.57%) Docker
10 488 (25.83%) C#
11 462 (24.46%) Software Engineering
12 444 (23.50%) Node.js
13 442 (23.40%) React
14 417 (22.08%) Python
15 408 (21.60%) Finance
16 401 (21.23%) AngularJS
17 390 (20.65%) Azure
18 385 (20.38%) Scrum
19 360 (19.06%) SQL
20 352 (18.63%) Test Automation
21 322 (17.05%) Git (software)
22 318 (16.83%) CSS
23 299 (15.83%) HTML
24 298 (15.78%) Continuous Integration
25 291 (15.40%) SQL Server
26 276 (14.61%) Kubernetes
27 274 (14.51%) REST
28 266 (14.08%) Spring
29 265 (14.03%) .NET Core
30 262 (13.87%) MVC

TDD
Co-occurring IT Skills in London 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 99 (5.24%) Elasticsearch
2 60 (3.18%) Confluence
3 37 (1.96%) Apache Spark
4 31 (1.64%) CMS
5 29 (1.54%) IIS
6 14 (0.74%) Apache
6 14 (0.74%) Moodle
6 14 (0.74%) Tomcat
7 11 (0.58%) Sitecore CMS
8 10 (0.53%) EPiServer
9 9 (0.48%) Umbraco
10 8 (0.42%) JBoss
11 6 (0.32%) nginx
11 6 (0.32%) Tornado
12 5 (0.26%) DNN
12 5 (0.26%) Immediacy CMS
12 5 (0.26%) Kentico
12 5 (0.26%) Sitefinity
12 5 (0.26%) WebSphere
12 5 (0.26%) WordPress
Applications
1 8 (0.42%) Microsoft Excel
2 4 (0.21%) Spreadsheet
3 2 (0.11%) Adobe Creative Suite
3 2 (0.11%) InVision
3 2 (0.11%) Sketch
4 1 (0.053%) Adobe Illustrator
4 1 (0.053%) Chatbot
4 1 (0.053%) Photoshop
Business Applications
1 5 (0.26%) Dynamics CRM
2 3 (0.16%) Distributed Ledger
2 3 (0.16%) Payment Gateway
3 1 (0.053%) Magento
3 1 (0.053%) R3 Corda
3 1 (0.053%) Sentinel
Cloud Services
1 596 (31.55%) AWS
2 390 (20.65%) Azure
3 129 (6.83%) GCP
4 106 (5.61%) Serverless
5 81 (4.29%) GitHub
6 76 (4.02%) SaaS
7 75 (3.97%) AWS Lambda
8 48 (2.54%) Amazon EC2
9 38 (2.01%) AWS CloudFormation
10 33 (1.75%) npm
11 30 (1.59%) PaaS
12 28 (1.48%) Amazon ECS
13 25 (1.32%) Amazon SQS
14 24 (1.27%) Cloud Computing
15 23 (1.22%) Azure Data Factory
16 16 (0.85%) Slack
17 15 (0.79%) BrowserStack
17 15 (0.79%) OpenShift
18 14 (0.74%) Power Platform
19 13 (0.69%) Amazon S3
Communications & Networking
1 46 (2.44%) Internet
2 33 (1.75%) HTTP
3 9 (0.48%) Skype
4 6 (0.32%) Network Security
5 4 (0.21%) FIX Connectivity
5 4 (0.21%) SNMP
5 4 (0.21%) TCP/IP
6 2 (0.11%) DNS
6 2 (0.11%) SSH
6 2 (0.11%) VoIP
6 2 (0.11%) VPN
7 1 (0.053%) ADSL
7 1 (0.053%) DSL
7 1 (0.053%) HTTPS
7 1 (0.053%) NFC
7 1 (0.053%) RS-485
7 1 (0.053%) SSL
7 1 (0.053%) VDSL
7 1 (0.053%) X.509
Database & Business Intelligence
1 291 (15.40%) SQL Server
2 261 (13.82%) NoSQL
3 201 (10.64%) MongoDB
4 112 (5.93%) MySQL
5 95 (5.03%) PostgreSQL
6 81 (4.29%) Relational Database
7 61 (3.23%) Redis
8 54 (2.86%) SQL Server 2019
9 53 (2.81%) Apache Cassandra
10 47 (2.49%) Big Data
11 35 (1.85%) Data Warehouse
12 34 (1.80%) Amazon DynamoDB
13 30 (1.59%) Amazon RDS
13 30 (1.59%) Hadoop
14 24 (1.27%) SQL Server Reporting Services
15 20 (1.06%) SQL Server 2008
16 19 (1.01%) SQL Server Integration Services
17 18 (0.95%) Cosmos DB
18 17 (0.90%) Azure SQL Database
18 17 (0.90%) Riak
Development Applications
1 322 (17.05%) Git (software)
2 189 (10.01%) Jenkins
3 149 (7.89%) Selenium
4 124 (6.56%) JIRA
5 106 (5.61%) Cucumber
6 91 (4.82%) TeamCity
7 72 (3.81%) JUnit
8 70 (3.71%) GitLab
9 67 (3.55%) webpack
10 56 (2.96%) Bitbucket
11 55 (2.91%) Jasmine
12 54 (2.86%) Octopus Deploy
13 53 (2.81%) Cypress.io
14 48 (2.54%) Maven
15 47 (2.49%) NUnit
16 38 (2.01%) Mocha
16 38 (2.01%) SpecFlow
17 36 (1.91%) Mockito
18 33 (1.75%) Appium
19 32 (1.69%) WebDriver
General
1 408 (21.60%) Finance
2 95 (5.03%) Banking
3 61 (3.23%) Front Office
4 51 (2.70%) Retail
5 50 (2.65%) Games
6 43 (2.28%) Law
7 41 (2.17%) Advertising
7 41 (2.17%) Marketing
8 32 (1.69%) Publishing
9 23 (1.22%) Public Sector
10 22 (1.16%) Financial Institution
11 19 (1.01%) Manufacturing
12 18 (0.95%) Electronics
13 16 (0.85%) Investment Banking
14 14 (0.74%) Telecoms
15 11 (0.58%) Back Office
16 7 (0.37%) Retail Banking
17 6 (0.32%) Online Betting
18 3 (0.16%) Housing Association
18 3 (0.16%) Mandarin Language
Job Titles
1 1,156 (61.20%) Developer
2 295 (15.62%) Java Developer
3 275 (14.56%) .NET Developer
4 234 (12.39%) Senior Developer
5 198 (10.48%) C# Developer
6 178 (9.42%) Software Engineer
7 160 (8.47%) C# .NET Developer
8 159 (8.42%) Full Stack Developer
9 98 (5.19%) DevOps Engineer
10 90 (4.76%) Senior Java Developer
11 77 (4.08%) Front End Developer (Client-Side Developer)
12 73 (3.86%) Java Engineer
12 73 (3.86%) JavaScript Developer
13 69 (3.65%) Python Engineer
14 65 (3.44%) AWS Engineer
14 65 (3.44%) React Developer
15 64 (3.39%) PHP Developer
16 56 (2.96%) Python Developer
17 54 (2.86%) Senior Software Engineer
18 48 (2.54%) Lead Developer
Libraries, Frameworks & Software Standards
1 513 (27.16%) .NET
2 444 (23.50%) Node.js
3 442 (23.40%) React
4 401 (21.23%) AngularJS
5 318 (16.83%) CSS
6 299 (15.83%) HTML
7 274 (14.51%) REST
8 266 (14.08%) Spring
9 265 (14.03%) .NET Core
10 254 (13.45%) RESTful
11 216 (11.43%) Web Services
12 213 (11.28%) ASP.NET
13 211 (11.17%) Kafka
14 163 (8.63%) ASP.NET Web API
15 149 (7.89%) Spring Boot
16 145 (7.68%) ASP.NET MVC
16 145 (7.68%) Vue.js
17 143 (7.57%) .NET Framework
18 140 (7.41%) HTML5
19 135 (7.15%) CSS3
Miscellaneous
1 198 (10.48%) Greenfield Project
2 102 (5.40%) Mobile App
3 81 (4.29%) Analytical Skills
4 78 (4.13%) User Experience
5 64 (3.39%) Algorithms
6 54 (2.86%) Self-Motivation
7 46 (2.44%) Equities
8 37 (1.96%) Media Streaming
9 36 (1.91%) Fixed Income
10 32 (1.69%) Cloud Native
10 32 (1.69%) Virtual Team
11 30 (1.59%) Hedge funds
12 28 (1.48%) Video\Live Streaming
13 24 (1.27%) Social Network
14 23 (1.22%) Data Structures
15 22 (1.16%) Foreign Exchange (FX)
16 19 (1.01%) Derivative
17 18 (0.95%) Enterprise Software
17 18 (0.95%) Video on Demand
18 17 (0.90%) Mobile Games
Operating Systems
1 155 (8.21%) Linux
2 84 (4.45%) Windows
3 63 (3.34%) Apple iOS
4 60 (3.18%) Android
5 37 (1.96%) Unix
6 14 (0.74%) VMS
7 5 (0.26%) Red Hat Enterprise Linux
8 2 (0.11%) AIX
8 2 (0.11%) Windows Server
9 1 (0.053%) CentOS
9 1 (0.053%) Mac OS
9 1 (0.053%) tvOS
9 1 (0.053%) Ubuntu
9 1 (0.053%) Windows Embedded Compact
9 1 (0.053%) Windows Mobile
Processes & Methodologies
1 1,270 (67.23%) Agile Software Development
2 747 (39.54%) BDD
3 621 (32.87%) Microservices
4 514 (27.21%) DevOps
5 462 (24.46%) Software Engineering
6 385 (20.38%) Scrum
7 352 (18.63%) Test Automation
8 298 (15.78%) Continuous Integration
9 262 (13.87%) MVC
10 247 (13.08%) OO
11 228 (12.07%) Fintech
12 212 (11.22%) Pair Programming
13 177 (9.37%) Continuous Delivery
14 167 (8.84%) SOLID
15 159 (8.42%) Mentoring
16 156 (8.26%) Kanban
17 148 (7.83%) Unit Testing
18 139 (7.36%) Front End Development
18 139 (7.36%) SDLC
19 132 (6.99%) Open Source
Programming Languages
1 819 (43.36%) JavaScript
2 677 (35.84%) Java
3 488 (25.83%) C#
4 417 (22.08%) Python
5 360 (19.06%) SQL
6 207 (10.96%) TypeScript
7 170 (9.00%) Java 8
8 160 (8.47%) Scala
9 136 (7.20%) Kotlin
10 126 (6.67%) Go
11 113 (5.98%) Ruby
12 99 (5.24%) PHP
13 50 (2.65%) ES6
14 44 (2.33%) T-SQL
15 42 (2.22%) C++
16 39 (2.06%) Clojure
17 37 (1.96%) Shell Script
18 35 (1.85%) PowerShell
19 34 (1.80%) Elixir
20 31 (1.64%) Apple Swift
Qualifications
1 124 (6.56%) Degree
2 84 (4.45%) Security Cleared
3 75 (3.97%) SC Cleared
4 62 (3.28%) Computer Science Degree
5 10 (0.53%) DV Cleared
6 9 (0.48%) Master's Degree
7 7 (0.37%) PhD
8 4 (0.21%) ISTQB
9 3 (0.16%) ISEB
9 3 (0.16%) OSCE
9 3 (0.16%) OSCP
10 2 (0.11%) BPSS Clearance
10 2 (0.11%) DBS Check
10 2 (0.11%) ISTQB Foundation Certification
10 2 (0.11%) MCPD
10 2 (0.11%) Microsoft Certification
10 2 (0.11%) Numerate Degree
10 2 (0.11%) PMI Certification
11 1 (0.053%) ISEB Practitioner
11 1 (0.053%) Postgraduate
Quality Assurance & Compliance
1 135 (7.15%) QA
2 12 (0.64%) GDPR
3 5 (0.26%) PCI DSS
4 3 (0.16%) ISO/IEC 27001
4 3 (0.16%) NIST
5 2 (0.11%) Data Quality
5 2 (0.11%) SLA
6 1 (0.053%) Dodd-Frank
System Software
1 502 (26.57%) Docker
2 12 (0.64%) Postfix
3 4 (0.21%) Active Directory
4 3 (0.16%) LXC
4 3 (0.16%) Microsoft App-V
4 3 (0.16%) VMware Infrastructure
5 2 (0.11%) Firmware
6 1 (0.053%) Cronacle
6 1 (0.053%) HDFS
Systems Management
1 276 (14.61%) Kubernetes
2 182 (9.63%) Terraform
3 86 (4.55%) Ansible
4 53 (2.81%) Puppet
5 37 (1.96%) Opscode Chef
6 27 (1.43%) Istio
7 14 (0.74%) Mesos
8 13 (0.69%) Marathon
9 8 (0.42%) Prometheus
10 5 (0.26%) Kibana
11 4 (0.21%) Consul
11 4 (0.21%) Rancher
12 3 (0.16%) linkerd
12 3 (0.16%) Nessus
13 2 (0.11%) Grafana
13 2 (0.11%) HP Quality Center
13 2 (0.11%) ZABBIX
14 1 (0.053%) Nagios
Vendors
1 169 (8.95%) Microsoft
2 69 (3.65%) Oracle
3 51 (2.70%) Google
4 33 (1.75%) Atlassian
5 23 (1.22%) Zend
6 19 (1.01%) Sony
7 16 (0.85%) Facebook
8 13 (0.69%) Salesforce.com
8 13 (0.69%) Xamarin
9 12 (0.64%) IBM
9 12 (0.64%) MuleSoft
10 11 (0.58%) SAP
10 11 (0.58%) Sitecore
11 8 (0.42%) Sun
12 6 (0.32%) Adobe
12 6 (0.32%) Apple
12 6 (0.32%) TIBCO
13 5 (0.26%) Alterian
13 5 (0.26%) Databricks
13 5 (0.26%) Splunk