Period
to 10 August 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 10 August 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
10 Aug 2020
Same period 2019 Same period 2018
Rank 20 30 22
Rank change year-on-year +10 -8 -3
Permanent jobs citing TDD 478 783 1,021
As % of all permanent jobs advertised in the City of London 9.58% 7.66% 9.29%
As % of the Processes & Methodologies category 10.19% 8.20% 9.96%
Number of salaries quoted 506 779 965
Median annual salary £72,500 £70,000 £70,000
Median salary % change year-on-year +3.57% - +12.00%
10th Percentile £50,000 £47,500 £42,500
90th Percentile £93,750 £92,500 £92,500
Central London median annual salary £75,000 £70,000 £67,500
% change year-on-year +7.14% +3.70% +8.00%

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 4,689 9,552 10,253
As % of all permanent IT jobs advertised in the City of London 93.93% 93.48% 93.25%
Number of salaries quoted 4,077 8,452 9,110
Median annual salary £70,000 £67,500 £65,000
Median salary % change year-on-year +3.70% +3.85% +8.33%
10th Percentile £42,500 £37,500 £36,250
90th Percentile £100,000 £97,500 £93,750
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 10 August 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 10 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
London Bridge +1 3 £65,000 +4.00%
TDD
Central London

For the 6 months to 10 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 City of London region with a requirement for TDD.

1 306 (64.02%) Agile Software Development
2 169 (35.36%) BDD
3 165 (34.52%) JavaScript
4 161 (33.68%) Java
5 142 (29.71%) Microservices
6 134 (28.03%) AWS
7 124 (25.94%) Docker
8 123 (25.73%) Finance
9 100 (20.92%) CSS
9 100 (20.92%) React
10 99 (20.71%) .NET
11 98 (20.50%) AngularJS
12 95 (19.87%) Software Engineering
13 94 (19.67%) HTML
14 90 (18.83%) Node.js
15 89 (18.62%) Scrum
16 82 (17.15%) C#
16 82 (17.15%) DevOps
17 78 (16.32%) Git (software)
17 78 (16.32%) Test Automation
18 77 (16.11%) REST
19 74 (15.48%) Fintech
20 70 (14.64%) Python
20 70 (14.64%) Continuous Integration
21 69 (14.44%) SQL
22 66 (13.81%) Greenfield Project
23 64 (13.39%) SQL Server
24 63 (13.18%) Azure
24 63 (13.18%) Kubernetes
24 63 (13.18%) Java 8

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 18 (3.77%) Apache Spark
2 14 (2.93%) Confluence
3 9 (1.88%) Moodle
4 7 (1.46%) Apache
5 5 (1.05%) Apache Solr
5 5 (1.05%) Tomcat
6 4 (0.84%) CMS
7 3 (0.63%) Elasticsearch
7 3 (0.63%) WordPress
8 2 (0.42%) Apache Airflow
8 2 (0.42%) Luigi
8 2 (0.42%) nginx
9 1 (0.21%) Appian
9 1 (0.21%) Cloud Foundry
9 1 (0.21%) Drupal
9 1 (0.21%) Headless CMS
9 1 (0.21%) IIS
9 1 (0.21%) Liferay
9 1 (0.21%) Traefik
9 1 (0.21%) uWSGI
Applications
1 1 (0.21%) Microsoft Excel
Business Applications
1 5 (1.05%) Dynamics CRM
Cloud Services
1 134 (28.03%) AWS
2 63 (13.18%) Azure
3 37 (7.74%) GCP
4 34 (7.11%) SaaS
5 22 (4.60%) Serverless
6 15 (3.14%) AWS Lambda
7 12 (2.51%) Amazon EC2
7 12 (2.51%) npm
7 12 (2.51%) PaaS
8 10 (2.09%) GitHub
9 9 (1.88%) Cloud Computing
10 6 (1.26%) Heroku
11 3 (0.63%) Azure Data Factory
11 3 (0.63%) Firebase
12 2 (0.42%) Amazon S3
12 2 (0.42%) BrowserStack
12 2 (0.42%) OpenShift
12 2 (0.42%) Sauce Labs
12 2 (0.42%) Veeva
12 2 (0.42%) Virtual Private Cloud
Communications & Networking
1 19 (3.97%) HTTP
2 3 (0.63%) NFC
3 2 (0.42%) DMZ
3 2 (0.42%) SNMP
4 1 (0.21%) AMQP
4 1 (0.21%) DNS
4 1 (0.21%) DSL
4 1 (0.21%) SSH
Database & Business Intelligence
1 64 (13.39%) SQL Server
2 55 (11.51%) MongoDB
3 45 (9.41%) MySQL
4 44 (9.21%) NoSQL
5 30 (6.28%) PostgreSQL
6 24 (5.02%) Apache Cassandra
7 22 (4.60%) Redis
8 19 (3.97%) Big Data
9 17 (3.56%) Hadoop
10 11 (2.30%) Amazon DynamoDB
11 10 (2.09%) Amazon RDS
12 9 (1.88%) Data Warehouse
13 6 (1.26%) Relational Database
13 6 (1.26%) SQL Server Integration Services
14 5 (1.05%) Azure SQL Database
14 5 (1.05%) RavenDB
14 5 (1.05%) Riak
15 4 (0.84%) Amazon Redshift
15 4 (0.84%) BigQuery
15 4 (0.84%) SQL Server 2014
Development Applications
1 78 (16.32%) Git (software)
2 59 (12.34%) Jenkins
3 32 (6.69%) TeamCity
4 29 (6.07%) Selenium
5 22 (4.60%) JIRA
6 20 (4.18%) Cucumber
7 14 (2.93%) webpack
8 12 (2.51%) Maven
9 10 (2.09%) Octopus Deploy
9 10 (2.09%) Visual Studio
10 9 (1.88%) Grunt
11 8 (1.67%) Bitbucket
11 8 (1.67%) Gradle
11 8 (1.67%) Protractor
12 7 (1.46%) Atlassian Bamboo
12 7 (1.46%) Eclipse
12 7 (1.46%) gulp
12 7 (1.46%) NUnit
12 7 (1.46%) RSpec
12 7 (1.46%) SpecFlow
General
1 123 (25.73%) Finance
2 36 (7.53%) Banking
3 22 (4.60%) Investment Banking
4 18 (3.77%) Front Office
5 15 (3.14%) Back Office
5 15 (3.14%) Law
6 9 (1.88%) Marketing
7 8 (1.67%) Advertising
7 8 (1.67%) Retail
8 6 (1.26%) Financial Institution
9 3 (0.63%) Publishing
9 3 (0.63%) Telecoms
10 2 (0.42%) Games
10 2 (0.42%) Legal
10 2 (0.42%) Retail Banking
11 1 (0.21%) Electronics
11 1 (0.21%) Mandarin Language
11 1 (0.21%) Manufacturing
11 1 (0.21%) Public Sector
Job Titles
1 347 (72.59%) Developer
2 109 (22.80%) Java Developer
3 73 (15.27%) Senior Developer
4 49 (10.25%) .NET Developer
5 47 (9.83%) React Developer
6 44 (9.21%) C# Developer
7 37 (7.74%) Software Engineer
8 36 (7.53%) Scala Developer
9 29 (6.07%) Full Stack Developer
10 28 (5.86%) C# .NET Developer
11 26 (5.44%) Front End Developer (Client-Side Developer)
12 25 (5.23%) AWS Developer
13 23 (4.81%) PHP Developer
14 20 (4.18%) Senior Java Developer
15 19 (3.97%) Cloud Developer
16 17 (3.56%) Senior Software Engineer
17 14 (2.93%) Java Engineer
18 13 (2.72%) Python Engineer
18 13 (2.72%) Software Developer
19 12 (2.51%) Senior .NET Developer
Libraries, Frameworks & Software Standards
1 100 (20.92%) CSS
1 100 (20.92%) React
2 99 (20.71%) .NET
3 98 (20.50%) AngularJS
4 94 (19.67%) HTML
5 90 (18.83%) Node.js
6 77 (16.11%) REST
7 57 (11.92%) Web Services
8 55 (11.51%) Spring
9 54 (11.30%) Kafka
10 53 (11.09%) HTML5
11 52 (10.88%) .NET Core
12 46 (9.62%) Redux
13 36 (7.53%) CSS3
13 36 (7.53%) Sass
14 29 (6.07%) ASP.NET Web API
14 29 (6.07%) Vue.js
15 28 (5.86%) LESS
15 28 (5.86%) RESTful
16 27 (5.65%) Spring Boot
Miscellaneous
1 66 (13.81%) Greenfield Project
2 25 (5.23%) User Experience
3 15 (3.14%) Derivative
3 15 (3.14%) Foreign Exchange (FX)
4 12 (2.51%) Enterprise Software
4 12 (2.51%) Mobile App
5 10 (2.09%) Equities
5 10 (2.09%) Self-Motivation
5 10 (2.09%) Virtual Team
6 9 (1.88%) e-Learning
6 9 (1.88%) SCORM
6 9 (1.88%) Video\Live Streaming
7 8 (1.67%) Fixed Income
8 6 (1.26%) Algorithms
8 6 (1.26%) Data Structures
8 6 (1.26%) Market Risk
9 5 (1.05%) Interest Rate Derivative
10 4 (0.84%) Analytical Skills
10 4 (0.84%) Social Media
10 4 (0.84%) W3C
Operating Systems
1 26 (5.44%) Linux
2 18 (3.77%) Windows
3 15 (3.14%) Apple iOS
4 13 (2.72%) Android
5 10 (2.09%) Unix
6 3 (0.63%) Red Hat Enterprise Linux
7 1 (0.21%) Ubuntu
7 1 (0.21%) VMS
Processes & Methodologies
1 306 (64.02%) Agile Software Development
2 169 (35.36%) BDD
3 142 (29.71%) Microservices
4 95 (19.87%) Software Engineering
5 89 (18.62%) Scrum
6 82 (17.15%) DevOps
7 78 (16.32%) Test Automation
8 74 (15.48%) Fintech
9 70 (14.64%) Continuous Integration
10 46 (9.62%) Pair Programming
11 45 (9.41%) SOLID
12 42 (8.79%) MVC
13 41 (8.58%) OO
14 38 (7.95%) Continuous Delivery
14 38 (7.95%) Front End Development
15 35 (7.32%) OOP
16 32 (6.69%) Problem-Solving
17 30 (6.28%) Analytics
17 30 (6.28%) E-Commerce
17 30 (6.28%) Unit Testing
Programming Languages
1 165 (34.52%) JavaScript
2 161 (33.68%) Java
3 82 (17.15%) C#
4 70 (14.64%) Python
5 69 (14.44%) SQL
6 63 (13.18%) Java 8
7 60 (12.55%) Scala
8 39 (8.16%) Kotlin
9 38 (7.95%) PHP
10 33 (6.90%) TypeScript
11 20 (4.18%) Ruby
12 18 (3.77%) ES6
13 14 (2.93%) Go
14 11 (2.30%) T-SQL
15 6 (1.26%) PL/SQL
16 5 (1.05%) R
17 4 (0.84%) Apple Swift
17 4 (0.84%) C++
17 4 (0.84%) ES7
17 4 (0.84%) Shell Script
Qualifications
1 15 (3.14%) Degree
2 9 (1.88%) Computer Science Degree
2 9 (1.88%) Security Cleared
3 7 (1.46%) Microsoft Certification
4 5 (1.05%) SC Cleared
5 4 (0.84%) DV Cleared
6 2 (0.42%) PhD
7 1 (0.21%) ISTQB
Quality Assurance & Compliance
1 20 (4.18%) QA
System Software
1 124 (25.94%) Docker
2 2 (0.42%) HDFS
2 2 (0.42%) VMware Infrastructure
3 1 (0.21%) Cronacle
3 1 (0.21%) iptables
3 1 (0.21%) vCloud
Systems Management
1 63 (13.18%) Kubernetes
2 9 (1.88%) Ansible
3 8 (1.67%) Puppet
4 7 (1.46%) Terraform
5 2 (0.42%) Grafana
5 2 (0.42%) Opscode Chef
5 2 (0.42%) Salt
6 1 (0.21%) Istio
6 1 (0.21%) MIIS
Vendors
1 30 (6.28%) Microsoft
2 24 (5.02%) Google
3 16 (3.35%) Oracle
4 8 (1.67%) Apple
5 7 (1.46%) TIBCO
6 4 (0.84%) Atlassian
6 4 (0.84%) Rackspace
7 2 (0.42%) Red Hat
7 2 (0.42%) Salesforce.com
7 2 (0.42%) Tableau
7 2 (0.42%) VMware
7 2 (0.42%) Xamarin
8 1 (0.21%) Adobe
8 1 (0.21%) Murex
8 1 (0.21%) OutSystems
8 1 (0.21%) Remedy
8 1 (0.21%) SAP
8 1 (0.21%) Sybase