Period
to 8 August 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 8 August 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
England > London
6 months to
8 Aug 2020
Same period 2019 Same period 2018
Rank 21 28 22
Rank change year-on-year +7 -6 -5
Permanent jobs citing TDD 2,489 4,540 6,704
As % of all permanent jobs advertised in London 9.23% 8.03% 9.61%
As % of the Processes & Methodologies category 9.87% 8.63% 10.36%
Number of salaries quoted 2,412 4,009 5,779
Median annual salary £70,000 £67,500 £65,000
Median salary % change year-on-year +3.70% +3.85% +8.33%
10th Percentile £45,000 £38,750 £38,750
90th Percentile £97,500 £94,000 £92,500
England median annual salary £60,000 £56,000 £52,500
% change year-on-year +7.14% +6.67% -

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 25,211 52,621 64,698
As % of all permanent IT jobs advertised in London 93.52% 93.08% 92.74%
Number of salaries quoted 20,379 42,715 51,776
Median annual salary £70,000 £65,000 £60,000
Median salary % change year-on-year +7.69% +8.33% -
10th Percentile £41,250 £36,750 £35,000
90th Percentile £105,000 £97,500 £93,750
England median annual salary £55,000 £52,500 £50,000
% change year-on-year +4.76% +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 8 August 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 8 August 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 +10 590 £75,000 +7.14% 112
West London +6 130 £62,500 +4.17% 72
South London +6 65 £62,500 +13.64% 6
East London -12 15 £65,000 +8.33% 18
North London -5 6 £50,000 -9.09% 4
TDD
England

For the 6 months to 8 August 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 1,811 (72.76%) Agile Software Development
2 1,096 (44.03%) JavaScript
3 1,088 (43.71%) BDD
4 964 (38.73%) Microservices
5 886 (35.60%) C#
6 856 (34.39%) .NET
7 848 (34.07%) Java
8 840 (33.75%) AWS
9 776 (31.18%) React
10 723 (29.05%) AngularJS
11 696 (27.96%) Node.js
12 695 (27.92%) Scrum
13 641 (25.75%) Azure
14 616 (24.75%) Docker
15 585 (23.50%) Finance
16 569 (22.86%) SQL Server
17 558 (22.42%) Software Engineering
18 523 (21.01%) DevOps
19 494 (19.85%) .NET Core
20 468 (18.80%) Git (software)
21 456 (18.32%) Kanban
22 449 (18.04%) Continuous Integration
23 441 (17.72%) MVC
24 434 (17.44%) CSS
24 434 (17.44%) Kubernetes
25 431 (17.32%) SQL
26 417 (16.75%) HTML
27 416 (16.71%) TypeScript
28 414 (16.63%) Test Automation
29 399 (16.03%) MongoDB

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
1 265 (10.65%) Elasticsearch
2 103 (4.14%) Confluence
3 52 (2.09%) Apache Spark
4 49 (1.97%) CMS
5 35 (1.41%) Apache
5 35 (1.41%) Tomcat
6 24 (0.96%) Umbraco
7 22 (0.88%) EPiServer
7 22 (0.88%) IIS
8 21 (0.84%) Sitecore CMS
9 17 (0.68%) DNN
9 17 (0.68%) Immediacy CMS
9 17 (0.68%) Kentico
9 17 (0.68%) Sitefinity
10 13 (0.52%) Moodle
11 12 (0.48%) JBoss
12 11 (0.44%) Adobe Experience Manager
13 10 (0.40%) SharePoint
14 8 (0.32%) Apache Airflow
15 7 (0.28%) WildFly
Applications
1 10 (0.40%) Microsoft Excel
2 5 (0.20%) Adobe XD
2 5 (0.20%) InVision
2 5 (0.20%) Zeplin
3 4 (0.16%) Chatbot
4 2 (0.080%) Photoshop
5 1 (0.040%) Mingle
Business Applications
1 7 (0.28%) Distributed Ledger
1 7 (0.28%) Dynamics CRM
2 6 (0.24%) Payment Gateway
3 3 (0.12%) Magento
3 3 (0.12%) R3 Corda
4 2 (0.080%) Unit4 Business World
5 1 (0.040%) Tesseract
Cloud Services
1 840 (33.75%) AWS
2 641 (25.75%) Azure
3 150 (6.03%) Serverless
4 147 (5.91%) GCP
5 119 (4.78%) SaaS
6 94 (3.78%) AWS Lambda
7 89 (3.58%) GitHub
8 62 (2.49%) PaaS
9 48 (1.93%) Amazon EC2
10 39 (1.57%) Amazon SQS
10 39 (1.57%) AWS CloudFormation
11 33 (1.33%) Amazon ECS
12 30 (1.21%) Amazon S3
13 28 (1.12%) npm
14 26 (1.04%) Cloud Computing
14 26 (1.04%) Power Platform
15 16 (0.64%) OpenShift
16 13 (0.52%) Amazon Cognito
16 13 (0.52%) Azure Functions
16 13 (0.52%) Slack
Communications & Networking
1 73 (2.93%) Internet
2 53 (2.13%) HTTP
3 7 (0.28%) TCP/IP
4 5 (0.20%) Skype
5 4 (0.16%) Broadband
5 4 (0.16%) FIX Connectivity
6 3 (0.12%) DNS
6 3 (0.12%) Network Security
6 3 (0.12%) NFC
7 2 (0.080%) DMZ
7 2 (0.080%) SNMP
7 2 (0.080%) SSL
7 2 (0.080%) VoIP
8 1 (0.040%) AMQP
8 1 (0.040%) DSL
8 1 (0.040%) SSH
Database & Business Intelligence
1 569 (22.86%) SQL Server
2 399 (16.03%) MongoDB
3 346 (13.90%) NoSQL
4 226 (9.08%) SQL Server 2019
5 139 (5.58%) MySQL
6 120 (4.82%) PostgreSQL
7 85 (3.42%) Relational Database
8 78 (3.13%) Redis
9 77 (3.09%) Apache Cassandra
10 61 (2.45%) Hadoop
11 52 (2.09%) Amazon DynamoDB
12 48 (1.93%) Big Data
13 41 (1.65%) Data Warehouse
14 33 (1.33%) Amazon RDS
15 31 (1.25%) Cosmos DB
16 30 (1.21%) Azure SQL Database
17 25 (1.00%) SQL Server Reporting Services
18 24 (0.96%) Blockchain
18 24 (0.96%) SQL Server Integration Services
19 22 (0.88%) Power BI
Development Applications
1 468 (18.80%) Git (software)
2 269 (10.81%) Jenkins
3 175 (7.03%) Selenium
4 165 (6.63%) JIRA
5 112 (4.50%) Cucumber
6 101 (4.06%) TeamCity
7 90 (3.62%) JUnit
8 80 (3.21%) Maven
9 78 (3.13%) webpack
10 75 (3.01%) Bitbucket
11 69 (2.77%) SpecFlow
12 59 (2.37%) Jasmine
13 57 (2.29%) Octopus Deploy
14 53 (2.13%) Visual Studio
15 51 (2.05%) NUnit
16 50 (2.01%) Mocha
17 47 (1.89%) Cypress.io
18 42 (1.69%) Mockito
19 34 (1.37%) GitLab
20 32 (1.29%) Atlassian Bamboo
General
1 585 (23.50%) Finance
2 218 (8.76%) Banking
3 142 (5.71%) Games
4 96 (3.86%) Front Office
5 92 (3.70%) Retail
6 68 (2.73%) Marketing
7 55 (2.21%) Investment Banking
8 43 (1.73%) Advertising
9 39 (1.57%) Law
10 37 (1.49%) Public Sector
11 29 (1.17%) Back Office
12 26 (1.04%) Telecoms
13 25 (1.00%) Financial Institution
14 22 (0.88%) Publishing
15 18 (0.72%) Electronics
15 18 (0.72%) Legal
16 8 (0.32%) Manufacturing
17 7 (0.28%) Retail Banking
18 5 (0.20%) Pharmaceutical
19 2 (0.080%) Music Industry
Job Titles
1 1,745 (70.11%) Developer
2 488 (19.61%) .NET Developer
3 439 (17.64%) Java Developer
4 374 (15.03%) C# Developer
5 329 (13.22%) Senior Developer
6 260 (10.45%) C# .NET Developer
7 216 (8.68%) Full Stack Developer
8 214 (8.60%) Software Engineer
9 154 (6.19%) React Developer
10 120 (4.82%) Senior Java Developer
11 115 (4.62%) JavaScript Developer
12 113 (4.54%) Front End Developer (Client-Side Developer)
13 85 (3.42%) AWS Developer
14 84 (3.37%) Java Engineer
15 79 (3.17%) Python Developer
16 73 (2.93%) Lead Developer
17 67 (2.69%) Junior
18 64 (2.57%) DevOps Engineer
19 63 (2.53%) Junior Developer
20 62 (2.49%) Senior Software Engineer
Libraries, Frameworks & Software Standards
1 856 (34.39%) .NET
2 776 (31.18%) React
3 723 (29.05%) AngularJS
4 696 (27.96%) Node.js
5 494 (19.85%) .NET Core
6 434 (17.44%) CSS
7 417 (16.75%) HTML
8 399 (16.03%) ASP.NET
9 384 (15.43%) ASP.NET Web API
10 341 (13.70%) REST
11 327 (13.14%) .NET Framework
12 320 (12.86%) Spring
13 314 (12.62%) RESTful
14 305 (12.25%) Vue.js
15 300 (12.05%) ASP.NET MVC
16 254 (10.20%) Entity Framework
17 246 (9.88%) Web Services
18 204 (8.20%) HTML5
19 193 (7.75%) Kafka
20 175 (7.03%) Redux
Miscellaneous
1 314 (12.62%) Greenfield Project
2 115 (4.62%) User Experience
3 99 (3.98%) Analytical Skills
4 79 (3.17%) Algorithms
5 78 (3.13%) Self-Motivation
6 77 (3.09%) Enterprise Software
7 73 (2.93%) Mobile App
8 70 (2.81%) Hedge funds
9 66 (2.65%) Data Structures
10 48 (1.93%) Foreign Exchange (FX)
11 45 (1.81%) Equities
12 39 (1.57%) Tandem
13 37 (1.49%) Derivative
14 33 (1.33%) Cloud Native
14 33 (1.33%) Fixed Income
15 28 (1.12%) Social Network
16 24 (0.96%) Virtual Team
17 23 (0.92%) Blog
18 22 (0.88%) Market Risk
18 22 (0.88%) Media Streaming
Operating Systems
1 163 (6.55%) Linux
2 114 (4.58%) Windows
3 73 (2.93%) Unix
4 59 (2.37%) Android
5 56 (2.25%) Apple iOS
6 18 (0.72%) Mac OS X
7 11 (0.44%) VMS
8 9 (0.36%) Red Hat Enterprise Linux
9 4 (0.16%) Windows Server 2019
10 2 (0.080%) AIX
10 2 (0.080%) Windows Server
11 1 (0.040%) Mac OS
11 1 (0.040%) Solaris
11 1 (0.040%) tvOS
11 1 (0.040%) Ubuntu
11 1 (0.040%) Windows Embedded Compact
11 1 (0.040%) Windows Mobile
Processes & Methodologies
1 1,811 (72.76%) Agile Software Development
2 1,088 (43.71%) BDD
3 964 (38.73%) Microservices
4 695 (27.92%) Scrum
5 558 (22.42%) Software Engineering
6 523 (21.01%) DevOps
7 456 (18.32%) Kanban
8 449 (18.04%) Continuous Integration
9 441 (17.72%) MVC
10 414 (16.63%) Test Automation
11 349 (14.02%) Fintech
12 298 (11.97%) OO
13 292 (11.73%) Pair Programming
14 225 (9.04%) Web Application Development
15 215 (8.64%) Front End Development
16 211 (8.48%) SOLID
17 183 (7.35%) Unit Testing
18 177 (7.11%) Continuous Delivery
19 175 (7.03%) Mentoring
20 170 (6.83%) Problem-Solving
Programming Languages
1 1,096 (44.03%) JavaScript
2 886 (35.60%) C#
3 848 (34.07%) Java
4 431 (17.32%) SQL
5 416 (16.71%) TypeScript
6 377 (15.15%) Python
7 282 (11.33%) Java 8
8 206 (8.28%) Scala
9 130 (5.22%) Kotlin
10 119 (4.78%) PHP
11 106 (4.26%) Ruby
12 88 (3.54%) Go
13 87 (3.50%) ES6
14 70 (2.81%) T-SQL
15 67 (2.69%) C++
16 49 (1.97%) PowerShell
17 34 (1.37%) Shell Script
18 31 (1.25%) Apple Swift
19 30 (1.21%) Bash Shell
20 29 (1.17%) Clojure
Qualifications
1 159 (6.39%) Degree
2 76 (3.05%) Computer Science Degree
3 60 (2.41%) Security Cleared
4 46 (1.85%) SC Cleared
5 12 (0.48%) ISEB
6 11 (0.44%) DV Cleared
7 10 (0.40%) ISTQB
8 8 (0.32%) Master's Degree
9 7 (0.28%) Microsoft Certification
10 4 (0.16%) MBA
11 2 (0.080%) BPSS Clearance
11 2 (0.080%) DBS Check
11 2 (0.080%) ISTQB Advanced Certification
11 2 (0.080%) Numerate Degree
11 2 (0.080%) PhD
12 1 (0.040%) IIBA
12 1 (0.040%) PMI Certification
12 1 (0.040%) Postgraduate
Quality Assurance & Compliance
1 122 (4.90%) QA
2 5 (0.20%) GDPR
3 4 (0.16%) Data Quality
4 2 (0.080%) SLA
5 1 (0.040%) Dodd-Frank
5 1 (0.040%) ISO/IEC 27001
5 1 (0.040%) PMO
System Software
1 616 (24.75%) Docker
2 13 (0.52%) VMware Infrastructure
3 9 (0.36%) Active Directory
4 8 (0.32%) Apache ZooKeeper
4 8 (0.32%) Postfix
5 6 (0.24%) vSphere
6 3 (0.12%) HDFS
6 3 (0.12%) Microsoft App-V
7 2 (0.080%) LXC
8 1 (0.040%) Cronacle
8 1 (0.040%) iptables
8 1 (0.040%) NDS
8 1 (0.040%) NetIQ eDirectory
8 1 (0.040%) vCloud
Systems Management
1 434 (17.44%) Kubernetes
2 146 (5.87%) Terraform
3 101 (4.06%) Ansible
4 51 (2.05%) Puppet
5 37 (1.49%) Opscode Chef
6 26 (1.04%) Istio
7 11 (0.44%) Mesos
8 9 (0.36%) Marathon
9 4 (0.16%) Grafana
10 3 (0.12%) Consul
10 3 (0.12%) Kibana
10 3 (0.12%) Prometheus
10 3 (0.12%) Salt
11 2 (0.080%) CA Service Virtualization
11 2 (0.080%) Graylog
11 2 (0.080%) HP Quality Center
11 2 (0.080%) Nagios
11 2 (0.080%) ZABBIX
12 1 (0.040%) MIIS
12 1 (0.040%) NetIQ Identity Manager
Vendors
1 254 (10.20%) Microsoft
2 92 (3.70%) Oracle
3 82 (3.29%) Google
4 30 (1.21%) Zend
5 26 (1.04%) TIBCO
6 22 (0.88%) Atlassian
7 21 (0.84%) Sitecore
8 20 (0.80%) SAP
9 19 (0.76%) Adobe
9 19 (0.76%) Tableau
10 17 (0.68%) Alterian
11 15 (0.60%) Facebook
11 15 (0.60%) Salesforce.com
12 14 (0.56%) Foundry
13 13 (0.52%) IBM
13 13 (0.52%) Sony
13 13 (0.52%) VMware
14 12 (0.48%) Splunk
15 10 (0.40%) Solace
16 9 (0.36%) Cognizant