Period
to 29 October 2020

The following table provides summary statistics for permanent job vacancies advertised in the City of 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 29 October 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Central London > City of London
6 months to
29 Oct 2020
Same period 2019 Same period 2018
Rank 13 23 21
Rank change year-on-year +10 -2 -2
Permanent jobs citing TDD 415 882 1,114
As % of all permanent jobs advertised in the City of London 11.35% 8.69% 9.95%
As % of the Processes & Methodologies category 12.12% 9.30% 10.71%
Number of salaries quoted 446 905 1,064
Median annual salary £70,000 £70,000 £70,000
10th Percentile £50,000 £46,250 £46,250
90th Percentile £92,500 £91,250 £97,500
Central London median annual salary £70,000 £70,000 £70,000

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 the City of London with a requirement for process or methodology skills.

All Process and Methodology Skills
City of London
Permanent vacancies with a requirement for process or methodology skills 3,423 9,485 10,400
As % of all permanent IT jobs advertised in the City of London 93.65% 93.49% 92.92%
Number of salaries quoted 3,009 8,271 9,276
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 £36,625
90th Percentile £100,000 £97,500 £95,000
Central London median annual salary £70,000 £65,000 £62,500
% change year-on-year +7.69% +4.00% +4.17%

TDD
Job Vacancy Trend in the City of London

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

Job vacancy trend for TDD in the City of London

TDD
Salary Trend in the City of London

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

Salary trend for TDD in the City of London

TDD
Salary Histogram in the City of London

Salary distribution for jobs citing TDD in the City of London over the 6 months to 29 October 2020.

Salary histogram for TDD in the City of London

TDD
Job Locations in the City of London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the City of London region over the 6 months to 29 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
London Bridge 0 2 £60,000 -2.04%
TDD
Central London

For the 6 months to 29 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 City of London region with a requirement for TDD.

1 251 (60.48%) Agile Software Development
2 142 (34.22%) BDD
3 133 (32.05%) Java
3 133 (32.05%) JavaScript
4 125 (30.12%) AWS
5 121 (29.16%) Microservices
6 111 (26.75%) Finance
7 102 (24.58%) DevOps
8 99 (23.86%) Docker
8 99 (23.86%) Software Engineering
9 91 (21.93%) Git (software)
10 90 (21.69%) AngularJS
11 87 (20.96%) CSS
12 85 (20.48%) Jenkins
13 80 (19.28%) HTML
14 77 (18.55%) Python
15 73 (17.59%) REST
16 72 (17.35%) .NET
17 68 (16.39%) React
18 67 (16.14%) Web Services
19 66 (15.90%) Azure
20 65 (15.66%) Test Automation
21 64 (15.42%) Node.js
22 59 (14.22%) SQL
23 58 (13.98%) C#
24 53 (12.77%) Scala
25 50 (12.05%) MySQL
25 50 (12.05%) Scrum
25 50 (12.05%) Continuous Integration
26 48 (11.57%) Spring

TDD
Co-occurring IT Skills in the City of 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 14 (3.37%) Apache Spark
2 10 (2.41%) Moodle
3 9 (2.17%) Elasticsearch
4 7 (1.69%) Confluence
5 5 (1.20%) Apache
5 5 (1.20%) Tomcat
6 4 (0.96%) CMS
7 3 (0.72%) Adobe Experience Manager
8 2 (0.48%) WordPress
9 1 (0.24%) Appian
9 1 (0.24%) Cloud Foundry
9 1 (0.24%) Liferay
9 1 (0.24%) nginx
9 1 (0.24%) SharePoint
9 1 (0.24%) SilverStripe
9 1 (0.24%) Traefik
9 1 (0.24%) uWSGI
Applications
1 1 (0.24%) Adobe Illustrator
1 1 (0.24%) Microsoft Excel
1 1 (0.24%) Photoshop
Business Applications
1 1 (0.24%) Dynamics CRM
Cloud Services
1 125 (30.12%) AWS
2 66 (15.90%) Azure
3 25 (6.02%) npm
4 21 (5.06%) GCP
5 16 (3.86%) SaaS
6 13 (3.13%) Cloud Computing
7 12 (2.89%) Serverless
8 11 (2.65%) Amazon EC2
9 10 (2.41%) Azure Data Factory
10 9 (2.17%) PaaS
11 8 (1.93%) OpenShift
12 7 (1.69%) AWS Lambda
13 6 (1.45%) Datadog
13 6 (1.45%) Heroku
14 5 (1.20%) Veeva
15 4 (0.96%) GitHub
16 3 (0.72%) NuGet
17 2 (0.48%) Amazon SageMaker
17 2 (0.48%) BrowserStack
17 2 (0.48%) Sauce Labs
Communications & Networking
1 13 (3.13%) HTTP
2 4 (0.96%) SNMP
3 1 (0.24%) DNS
3 1 (0.24%) DSL
3 1 (0.24%) HTTPS
3 1 (0.24%) NFC
3 1 (0.24%) SSH
3 1 (0.24%) TCP/IP
Database & Business Intelligence
1 50 (12.05%) MySQL
2 45 (10.84%) MongoDB
3 44 (10.60%) NoSQL
4 43 (10.36%) SQL Server
5 25 (6.02%) PostgreSQL
6 19 (4.58%) Apache Cassandra
7 14 (3.37%) Big Data
7 14 (3.37%) Redis
8 12 (2.89%) Data Warehouse
8 12 (2.89%) Hadoop
9 10 (2.41%) Amazon DynamoDB
9 10 (2.41%) Amazon RDS
10 9 (2.17%) MS Access
11 6 (1.45%) Relational Database
12 4 (0.96%) Azure SQL Database
12 4 (0.96%) SQL Server 2014
13 3 (0.72%) Cosmos DB
14 2 (0.48%) BigQuery
14 2 (0.48%) SQL Server Integration Services
15 1 (0.24%) Oracle Database
Development Applications
1 91 (21.93%) Git (software)
2 85 (20.48%) Jenkins
3 23 (5.54%) Selenium
4 17 (4.10%) webpack
5 16 (3.86%) Cypress.io
5 16 (3.86%) JIRA
6 15 (3.61%) Bower
6 15 (3.61%) Grunt
6 15 (3.61%) NUnit
6 15 (3.61%) TeamCity
7 11 (2.65%) Cucumber
8 10 (2.41%) JUnit
9 7 (1.69%) Moq
9 7 (1.69%) MSTest
9 7 (1.69%) Protractor
10 6 (1.45%) Bitbucket
10 6 (1.45%) Mockito
10 6 (1.45%) RSpec
11 5 (1.20%) GitLab
11 5 (1.20%) Octopus Deploy
General
1 111 (26.75%) Finance
2 19 (4.58%) Banking
3 16 (3.86%) Law
4 13 (3.13%) Front Office
5 8 (1.93%) Marketing
6 7 (1.69%) Advertising
6 7 (1.69%) Financial Institution
7 6 (1.45%) Investment Banking
8 5 (1.20%) Games
8 5 (1.20%) Publishing
9 4 (0.96%) Retail Banking
10 3 (0.72%) Retail
11 2 (0.48%) Electronics
11 2 (0.48%) Manufacturing
11 2 (0.48%) Public Sector
11 2 (0.48%) Telecoms
12 1 (0.24%) Mandarin Language
Job Titles
1 265 (63.86%) Developer
2 77 (18.55%) Java Developer
3 46 (11.08%) Software Engineer
4 40 (9.64%) Senior Developer
5 39 (9.40%) C# Developer
6 33 (7.95%) .NET Developer
7 29 (6.99%) PHP Developer
8 27 (6.51%) C# .NET Developer
9 19 (4.58%) Cloud Developer
10 18 (4.34%) Python Engineer
10 18 (4.34%) Scala Developer
11 17 (4.10%) Front End Developer (Client-Side Developer)
11 17 (4.10%) Python Developer
12 16 (3.86%) Backend Developer
12 16 (3.86%) Full Stack Developer
12 16 (3.86%) Mobile Developer
12 16 (3.86%) React Developer
13 15 (3.61%) Senior Software Engineer
14 11 (2.65%) Python Software Engineer
15 10 (2.41%) Moodle Developer
Libraries, Frameworks & Software Standards
1 90 (21.69%) AngularJS
2 87 (20.96%) CSS
3 80 (19.28%) HTML
4 73 (17.59%) REST
5 72 (17.35%) .NET
6 68 (16.39%) React
7 67 (16.14%) Web Services
8 64 (15.42%) Node.js
9 48 (11.57%) Spring
10 43 (10.36%) HTML5
11 40 (9.64%) CSS3
11 40 (9.64%) Sass
12 37 (8.92%) Kafka
13 36 (8.67%) .NET Core
13 36 (8.67%) LESS
14 31 (7.47%) Redux
15 30 (7.23%) RESTful
16 26 (6.27%) Vue.js
17 24 (5.78%) Spring Boot
18 23 (5.54%) React Native
Miscellaneous
1 42 (10.12%) Greenfield Project
2 29 (6.99%) User Experience
3 21 (5.06%) Equities
4 19 (4.58%) Algorithms
5 17 (4.10%) Virtual Team
6 16 (3.86%) Mobile App
7 14 (3.37%) Self-Motivation
8 11 (2.65%) Video\Live Streaming
9 10 (2.41%) Derivative
9 10 (2.41%) e-Learning
9 10 (2.41%) SCORM
10 7 (1.69%) Data Structures
11 6 (1.45%) Market Risk
12 5 (1.20%) Foreign Exchange (FX)
13 4 (0.96%) Enterprise Software
13 4 (0.96%) Hedge funds
14 3 (0.72%) Clustering
14 3 (0.72%) W3C
15 2 (0.48%) Interest Rate Derivative
15 2 (0.48%) SWIFT
Operating Systems
1 36 (8.67%) Linux
2 22 (5.30%) Apple iOS
3 19 (4.58%) Android
4 11 (2.65%) Windows
5 9 (2.17%) Unix
6 3 (0.72%) Red Hat Enterprise Linux
7 1 (0.24%) Ubuntu
Processes & Methodologies
1 251 (60.48%) Agile Software Development
2 142 (34.22%) BDD
3 121 (29.16%) Microservices
4 102 (24.58%) DevOps
5 99 (23.86%) Software Engineering
6 65 (15.66%) Test Automation
7 50 (12.05%) Continuous Integration
7 50 (12.05%) Scrum
8 47 (11.33%) MVC
9 45 (10.84%) Pair Programming
10 37 (8.92%) Problem-Solving
11 36 (8.67%) E-Commerce
11 36 (8.67%) Fintech
11 36 (8.67%) OO
11 36 (8.67%) SOLID
12 34 (8.19%) Front End Development
13 30 (7.23%) Continuous Delivery
14 25 (6.02%) SDLC
15 24 (5.78%) Analytics
16 23 (5.54%) Unit Testing
Programming Languages
1 133 (32.05%) Java
1 133 (32.05%) JavaScript
2 77 (18.55%) Python
3 59 (14.22%) SQL
4 58 (13.98%) C#
5 53 (12.77%) Scala
6 48 (11.57%) PHP
7 46 (11.08%) Kotlin
8 44 (10.60%) Java 8
9 32 (7.71%) TypeScript
10 15 (3.61%) Ruby
11 11 (2.65%) ES6
11 11 (2.65%) Go
12 7 (1.69%) R
13 6 (1.45%) T-SQL
14 5 (1.20%) Apple Swift
14 5 (1.20%) SOQL
15 4 (0.96%) ES7
16 3 (0.72%) Clojure
16 3 (0.72%) Objective-C
Qualifications
1 20 (4.82%) Degree
2 10 (2.41%) Computer Science Degree
3 6 (1.45%) PhD
4 5 (1.20%) SC Cleared
4 5 (1.20%) Security Cleared
5 1 (0.24%) ISTQB
5 1 (0.24%) Master's Degree
Quality Assurance & Compliance
1 10 (2.41%) QA
System Software
1 99 (23.86%) Docker
2 1 (0.24%) Cronacle
Systems Management
1 43 (10.36%) Kubernetes
2 19 (4.58%) Puppet
3 14 (3.37%) Terraform
4 12 (2.89%) Ansible
5 5 (1.20%) Kibana
6 1 (0.24%) Grafana
6 1 (0.24%) Opscode Chef
6 1 (0.24%) ZABBIX
Vendors
1 18 (4.34%) Microsoft
2 16 (3.86%) Oracle
3 5 (1.20%) Apple
3 5 (1.20%) Salesforce.com
4 4 (0.96%) Rackspace
5 3 (0.72%) Adobe
5 3 (0.72%) Google
6 2 (0.48%) SAP
7 1 (0.24%) Atlassian
7 1 (0.24%) OutSystems
7 1 (0.24%) Xamarin