Period
to 22 September 2019

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 22 September 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
England > London
6 months to
22 Sep 2019
Same period 2018 Same period 2017
Rank 26 23 19
Rank change year-on-year -3 -4 -2
Permanent jobs citing TDD 4,550 6,476 7,664
As % of all permanent IT jobs advertised in London 8.26% 9.47% 10.23%
As % of the Processes & Methodologies category 8.88% 10.23% 10.92%
Number of salaries quoted 3,737 5,282 6,424
London median annual salary £67,500 £65,000 £62,500
Median salary % change year-on-year +3.85% +4.00% +4.17%
10th Percentile £38,750 £39,775 £38,750
90th Percentile £95,000 £95,000 £86,250
England median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +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 51,241 63,329 70,169
As % of all permanent IT jobs advertised in London 93.00% 92.58% 93.68%
Number of salaries quoted 41,242 50,745 53,853
London median annual salary £65,000 £62,500 £60,000
Median salary % change year-on-year +4.00% +4.17% +4.35%
10th Percentile £36,250 £35,000 £35,000
90th Percentile £97,955 £95,000 £90,000
England median annual salary £52,500 £50,000 £50,000
% change year-on-year +5.00% - -

TDD
Job Vacancy Trend in London

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

Job vacancy trend for TDD in London

TDD
Salary Trend in London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing TDD in London.

Salary trend for TDD in London

TDD
Salary Histogram in London

The salary distribution of IT jobs citing TDD in London over the 6 months to 22 September 2019.

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 22 September 2019. 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 -4 1,060 £70,000 - 310
West London +17 248 £60,000 -4.00% 132
South London -1 95 £57,500 - 20
East London -17 30 £58,750 -6.00% 43
North London -12 16 £58,750 -2.08% 17
TDD
England

For the 6 months to 22 September 2019, 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 3,384 (74.37%) Agile Software Development
2 2,058 (45.23%) BDD
3 1,805 (39.67%) Java
4 1,733 (38.09%) JavaScript
5 1,627 (35.76%) C#
6 1,496 (32.88%) .NET
7 1,251 (27.49%) Scrum
8 1,087 (23.89%) Microservices
9 1,082 (23.78%) Continuous Integration
10 1,050 (23.08%) AWS
11 1,036 (22.77%) SQL
12 981 (21.56%) AngularJS
13 972 (21.36%) MVC
14 946 (20.79%) SQL Server
15 943 (20.73%) Git (software)
16 936 (20.57%) Finance
17 916 (20.13%) React
18 893 (19.63%) DevOps
19 889 (19.54%) Docker
19 889 (19.54%) ASP.NET
20 872 (19.16%) RESTful
21 856 (18.81%) HTML
22 849 (18.66%) Software Engineering
23 831 (18.26%) Test Automation
24 800 (17.58%) CSS
25 738 (16.22%) Azure
26 689 (15.14%) Node.js
27 683 (15.01%) Python
28 661 (14.53%) Spring
29 645 (14.18%) ASP.NET 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
1 186 (4.09%) Elasticsearch
2 119 (2.62%) Apache Spark
2 119 (2.62%) Confluence
3 76 (1.67%) Apache
4 67 (1.47%) Tomcat
5 63 (1.38%) CMS
6 41 (0.90%) IIS
7 38 (0.84%) Umbraco
8 29 (0.64%) EPiServer
8 29 (0.64%) Sitecore CMS
9 28 (0.62%) Apache Solr
10 26 (0.57%) DNN
10 26 (0.57%) Immediacy CMS
10 26 (0.57%) Kentico
10 26 (0.57%) Sitefinity
11 25 (0.55%) Adobe Experience Manager
12 21 (0.46%) nginx
13 19 (0.42%) WordPress
14 18 (0.40%) Cloud Foundry
14 18 (0.40%) WebSphere
Applications
1 10 (0.22%) Microsoft Excel
2 9 (0.20%) Chatbot
3 8 (0.18%) Adobe Premiere
4 5 (0.11%) Microsoft Office
4 5 (0.11%) Microsoft PowerPoint
5 4 (0.088%) Sketch
5 4 (0.088%) Zeplin
6 3 (0.066%) Photoshop
7 1 (0.022%) Fireworks
7 1 (0.022%) GIMP
7 1 (0.022%) MS Visio
7 1 (0.022%) Spreadsheet
Business Applications
1 122 (2.68%) Payment Gateway
2 23 (0.51%) SAP Hybris
3 10 (0.22%) Dynamics CRM
4 8 (0.18%) Magento
5 7 (0.15%) Distributed Ledger
6 6 (0.13%) FastStats
7 5 (0.11%) Oracle BPM
8 4 (0.088%) Oracle Retail
9 3 (0.066%) Fredhopper
9 3 (0.066%) Oracle Applications
10 2 (0.044%) R3 Corda
10 2 (0.044%) SAP HCM
11 1 (0.022%) Bloomberg AIM
11 1 (0.022%) Dynamics GP
11 1 (0.022%) Dynamics NAV
11 1 (0.022%) FINCAD Analytics
11 1 (0.022%) LatentZero
11 1 (0.022%) LongView
11 1 (0.022%) Siebel CRM
11 1 (0.022%) thinkFolio
Cloud Services
1 1,050 (23.08%) AWS
2 738 (16.22%) Azure
3 235 (5.16%) GCP
4 192 (4.22%) GitHub
5 165 (3.63%) Serverless
6 144 (3.16%) SaaS
7 132 (2.90%) PaaS
8 118 (2.59%) OpenShift
9 68 (1.49%) Amazon EC2
10 61 (1.34%) npm
11 59 (1.30%) AWS Lambda
12 52 (1.14%) Amazon S3
13 49 (1.08%) IaaS
14 45 (0.99%) Cloud Computing
15 36 (0.79%) AWS CloudFormation
16 31 (0.68%) Office 365
17 30 (0.66%) G Suite
18 20 (0.44%) Firebase
18 20 (0.44%) Heroku
19 19 (0.42%) Amazon SQS
Communications & Networking
1 134 (2.95%) Internet
2 68 (1.49%) HTTP
3 27 (0.59%) Broadband
4 16 (0.35%) DNS
5 9 (0.20%) AMQP
6 8 (0.18%) Intranet
7 7 (0.15%) HTTPS
7 7 (0.15%) Skype
8 6 (0.13%) Ethernet
8 6 (0.13%) TCP/IP
9 5 (0.11%) Kerberos
10 4 (0.088%) ATM
10 4 (0.088%) FIX Connectivity
10 4 (0.088%) SSH
11 3 (0.066%) Firewall
11 3 (0.066%) IPv6
11 3 (0.066%) Network Security
11 3 (0.066%) SSL
11 3 (0.066%) Telnet
11 3 (0.066%) VPN
Database & Business Intelligence
1 946 (20.79%) SQL Server
2 562 (12.35%) NoSQL
3 402 (8.84%) SQL Server 2016
4 275 (6.04%) MongoDB
5 257 (5.65%) MySQL
6 211 (4.64%) Big Data
7 180 (3.96%) PostgreSQL
8 141 (3.10%) Redis
9 132 (2.90%) Apache Cassandra
10 131 (2.88%) Hadoop
11 125 (2.75%) Relational Database
12 65 (1.43%) Amazon RDS
13 61 (1.34%) Amazon DynamoDB
14 56 (1.23%) Blockchain
15 47 (1.03%) Data Warehouse
16 44 (0.97%) Azure SQL Database
17 37 (0.81%) Cosmos DB
18 35 (0.77%) Neo4j
18 35 (0.77%) SQL Server Reporting Services
19 29 (0.64%) SQL Server Integration Services
Development Applications
1 943 (20.73%) Git (software)
2 532 (11.69%) Jenkins
3 444 (9.76%) Selenium
4 383 (8.42%) JIRA
5 337 (7.41%) Cucumber
6 215 (4.73%) JUnit
7 210 (4.62%) Maven
8 205 (4.51%) TeamCity
9 145 (3.19%) NUnit
10 144 (3.16%) Gradle
11 135 (2.97%) WebDriver
12 122 (2.68%) SpecFlow
13 121 (2.66%) Team Foundation Server
14 109 (2.40%) webpack
15 107 (2.35%) SoapUI
16 100 (2.20%) Visual Studio
17 94 (2.07%) Mockito
18 92 (2.02%) Bitbucket
19 91 (2.00%) Jasmine
20 85 (1.87%) JMeter
General
1 936 (20.57%) Finance
2 459 (10.09%) Banking
3 378 (8.31%) Retail
4 340 (7.47%) Games
5 116 (2.55%) Marketing
6 101 (2.22%) Front Office
7 96 (2.11%) Advertising
8 85 (1.87%) Investment Banking
9 79 (1.74%) Telecoms
10 52 (1.14%) Public Sector
11 46 (1.01%) Financial Institution
12 42 (0.92%) Retail Banking
13 37 (0.81%) Back Office
14 32 (0.70%) Law
15 27 (0.59%) Publishing
16 24 (0.53%) Automotive
16 24 (0.53%) Multimedia
17 21 (0.46%) Billing
17 21 (0.46%) Manufacturing
18 18 (0.40%) Legal
Job Titles
1 2,977 (65.43%) Developer
2 841 (18.48%) .NET Developer
3 810 (17.80%) Java Developer
4 706 (15.52%) C# Developer
5 591 (12.99%) Senior Developer
6 501 (11.01%) C# .NET Developer
7 321 (7.05%) Software Engineer
8 222 (4.88%) Java Engineer
9 219 (4.81%) Senior Java Developer
10 214 (4.70%) Software Developer
11 206 (4.53%) ASP.NET Developer
12 194 (4.26%) C# ASP.NET Developer
13 189 (4.15%) Front End Developer (Client-Side Developer)
14 186 (4.09%) React Developer
15 179 (3.93%) Full Stack Developer
15 179 (3.93%) Python Developer
16 176 (3.87%) JavaScript Developer
17 175 (3.85%) Lead Developer
18 145 (3.19%) Architect
19 136 (2.99%) Junior
Libraries, Frameworks & Software Standards
1 1,496 (32.88%) .NET
2 981 (21.56%) AngularJS
3 916 (20.13%) React
4 889 (19.54%) ASP.NET
5 872 (19.16%) RESTful
6 856 (18.81%) HTML
7 800 (17.58%) CSS
8 689 (15.14%) Node.js
9 661 (14.53%) Spring
10 645 (14.18%) ASP.NET MVC
11 635 (13.96%) REST
12 602 (13.23%) ASP.NET Web API
13 547 (12.02%) Web Services
14 409 (8.99%) .NET Framework
15 376 (8.26%) HTML5
16 346 (7.60%) Spring Boot
17 336 (7.38%) WCF
18 302 (6.64%) Entity Framework
19 294 (6.46%) .NET Core
20 276 (6.07%) Kafka
Miscellaneous
1 541 (11.89%) Greenfield Project
2 315 (6.92%) User Experience
3 208 (4.57%) Mobile App
4 176 (3.87%) Analytical Skills
5 171 (3.76%) Algorithms
6 140 (3.08%) Data Structures
7 135 (2.97%) Enterprise Software
8 76 (1.67%) Public Cloud
9 71 (1.56%) Self-Motivation
10 66 (1.45%) Cloud Native
11 56 (1.23%) Equities
12 50 (1.10%) Online Gambling
13 48 (1.05%) Derivative
14 47 (1.03%) Fixed Income
14 47 (1.03%) Foreign Exchange (FX)
15 41 (0.90%) Virtual Team
16 40 (0.88%) Hybrid Cloud
17 37 (0.81%) iPad
18 35 (0.77%) Social Network
19 34 (0.75%) Hedge funds
Operating Systems
1 298 (6.55%) Linux
2 230 (5.05%) Windows
3 158 (3.47%) Android
4 95 (2.09%) Apple iOS
5 88 (1.93%) Unix
6 10 (0.22%) Mac OS X
7 9 (0.20%) Ubuntu
8 8 (0.18%) Mac OS
8 8 (0.18%) Windows Server
9 7 (0.15%) CentOS
10 3 (0.066%) Red Hat Enterprise Linux
11 2 (0.044%) tvOS
11 2 (0.044%) VMS
12 1 (0.022%) Windows 10
Processes & Methodologies
1 3,384 (74.37%) Agile Software Development
2 2,058 (45.23%) BDD
3 1,251 (27.49%) Scrum
4 1,087 (23.89%) Microservices
5 1,082 (23.78%) Continuous Integration
6 972 (21.36%) MVC
7 893 (19.63%) DevOps
8 849 (18.66%) Software Engineering
9 831 (18.26%) Test Automation
10 620 (13.63%) Kanban
11 546 (12.00%) OO
12 488 (10.73%) E-Commerce
13 465 (10.22%) Continuous Delivery
14 457 (10.04%) Problem-Solving
15 447 (9.82%) Fintech
16 441 (9.69%) Unit Testing
17 440 (9.67%) Mentoring
18 412 (9.05%) Pair Programming
19 369 (8.11%) SOLID
20 367 (8.07%) Web Application Development
Programming Languages
1 1,805 (39.67%) Java
2 1,733 (38.09%) JavaScript
3 1,627 (35.76%) C#
4 1,036 (22.77%) SQL
5 683 (15.01%) Python
6 498 (10.95%) Java 8
7 372 (8.18%) Ruby
8 304 (6.68%) Scala
9 214 (4.70%) TypeScript
10 192 (4.22%) Go
11 187 (4.11%) ES6
12 182 (4.00%) PHP
13 153 (3.36%) Kotlin
14 133 (2.92%) T-SQL
15 87 (1.91%) C++
16 86 (1.89%) PowerShell
17 76 (1.67%) C
18 68 (1.49%) F#
19 59 (1.30%) Groovy
20 58 (1.27%) Bash Shell
Qualifications
1 416 (9.14%) Degree
2 134 (2.95%) Computer Science Degree
3 100 (2.20%) Security Cleared
4 59 (1.30%) SC Cleared
5 43 (0.95%) ISTQB Foundation Certification
6 38 (0.84%) ISTQB
7 36 (0.79%) ISEB
8 26 (0.57%) DV Cleared
9 13 (0.29%) Microsoft Certification
10 9 (0.20%) ISTQB Advanced Certification
11 8 (0.18%) TOGAF Certification
12 7 (0.15%) Master's Degree
12 7 (0.15%) PhD
13 6 (0.13%) AWS Certification
13 6 (0.13%) MCAD
13 6 (0.13%) MCSD
13 6 (0.13%) MCTS
14 5 (0.11%) CTC Cleared
14 5 (0.11%) MCP
15 4 (0.088%) Numerate Degree
Quality Assurance & Compliance
1 419 (9.21%) QA
2 12 (0.26%) GDPR
3 7 (0.15%) HIPAA
4 5 (0.11%) TickIT
5 3 (0.066%) Data Quality
6 2 (0.044%) EMIR
6 2 (0.044%) MiFID
6 2 (0.044%) SLA
7 1 (0.022%) HL7
7 1 (0.022%) WCAG
System Software
1 889 (19.54%) Docker
2 49 (1.08%) Active Directory
3 31 (0.68%) vSphere
4 29 (0.64%) VMware Infrastructure
5 22 (0.48%) Apache ZooKeeper
6 10 (0.22%) Varnish
7 5 (0.11%) HDFS
7 5 (0.11%) Microsoft App-V
8 2 (0.044%) Virtual Machines
9 1 (0.022%) Apache Flume
9 1 (0.022%) Postfix
9 1 (0.022%) vCloud
9 1 (0.022%) Virtual Desktop
9 1 (0.022%) Virtual Servers
9 1 (0.022%) VirtualBox
Systems Management
1 602 (13.23%) Kubernetes
2 241 (5.30%) Ansible
3 179 (3.93%) Terraform
4 118 (2.59%) Puppet
5 103 (2.26%) Opscode Chef
6 34 (0.75%) Istio
7 33 (0.73%) HP Quality Center
8 28 (0.62%) Kibana
9 26 (0.57%) Rancher
10 23 (0.51%) Grafana
10 23 (0.51%) Prometheus
11 22 (0.48%) Mesos
12 18 (0.40%) Marathon
13 16 (0.35%) logstash
14 11 (0.24%) Oozie
15 9 (0.20%) Docker Swarm
15 9 (0.20%) Packer
16 8 (0.18%) Hadoop YARN
17 7 (0.15%) Control-M
18 5 (0.11%) Matomo
Vendors
1 519 (11.41%) Microsoft
2 246 (5.41%) Google
3 222 (4.88%) Oracle
4 162 (3.56%) WorldPay
5 60 (1.32%) SAP
6 54 (1.19%) Spotify
7 41 (0.90%) Adobe
8 40 (0.88%) Salesforce.com
9 34 (0.75%) HP
10 33 (0.73%) Facebook
10 33 (0.73%) Sitecore
11 31 (0.68%) VMware
12 26 (0.57%) Alterian
12 26 (0.57%) hybris
13 24 (0.53%) Splunk
14 23 (0.51%) IBM
15 21 (0.46%) Atlassian
16 20 (0.44%) YouTube
17 18 (0.40%) Xamarin
18 17 (0.37%) Zend