Period
to 22 January 2022

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 January 2022 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
England > London
6 months to
22 Jan 2022
Same period 2021 Same period 2020
Rank 32 23 22
Rank change year-on-year -9 -1 +4
Permanent jobs citing TDD 4,161 2,235 4,605
As % of all permanent jobs advertised in London 8.15% 9.30% 8.97%
As % of the Processes & Methodologies category 8.51% 9.87% 9.55%
Number of salaries quoted 2,148 1,930 3,801
10th Percentile £50,000 £48,750 £42,500
25th Percentile £60,000 £56,250 £52,500
Median annual salary (50th Percentile) £75,000 £70,000 £67,500
Median % change year-on-year +7.14% +3.70% +3.85%
75th Percentile £91,250 £85,000 £82,500
90th Percentile £105,000 £100,000 £95,000
England median annual salary £65,000 £60,000 £60,000
% change year-on-year +8.33% - +9.09%

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 48,873 22,643 48,216
As % of all permanent IT jobs advertised in London 95.72% 94.18% 93.93%
Number of salaries quoted 32,342 19,118 39,125
10th Percentile £42,500 £42,500 £36,500
25th Percentile £53,750 £52,500 £48,500
Median annual salary (50th Percentile) £70,000 £70,000 £65,000
Median % change year-on-year - +7.69% +4.00%
75th Percentile £90,000 £85,000 £83,750
90th Percentile £110,000 £105,000 £100,000
England median annual salary £60,000 £55,000 £55,000
% change year-on-year +9.09% - +4.76%

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 22 January 2022.

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 January 2022. 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
Jobs
Central London -31 368 £77,500 +10.71% 251
West London +23 229 £67,500 +14.89% 88
South London -21 92 £62,563 +0.10% 10
East London -42 10 £71,250 +26.67% 46
North London -11 7 £150,000 +185.71% 5
TDD
England

For the 6 months to 22 January 2022, 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 3,077 (73.95%) Agile Software Development
2 1,803 (43.33%) JavaScript
3 1,655 (39.77%) Java
4 1,588 (38.16%) Software Engineering
5 1,537 (36.94%) CI/CD
6 1,508 (36.24%) AWS
7 1,430 (34.37%) React
8 1,395 (33.53%) Microservices
9 1,352 (32.49%) Docker
10 1,294 (31.10%) BDD
11 1,104 (26.53%) DevOps
12 1,081 (25.98%) Git (software)
13 1,073 (25.79%) Finance
14 1,057 (25.40%) Full Stack Development
15 1,024 (24.61%) Kubernetes
16 997 (23.96%) Azure
17 937 (22.52%) Node.js
18 936 (22.49%) Continuous Integration
19 935 (22.47%) SQL
20 931 (22.37%) C#
21 925 (22.23%) Scrum
22 871 (20.93%) Python
23 857 (20.60%) Test Automation
24 854 (20.52%) .NET
25 831 (19.97%) HTML
26 799 (19.20%) TypeScript
27 791 (19.01%) Social Skills
28 774 (18.60%) AngularJS
29 770 (18.51%) CSS
30 763 (18.34%) Spring

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
1 221 (5.31%) Elasticsearch
2 110 (2.64%) CMS
3 102 (2.45%) Confluence
4 74 (1.78%) Apache Spark
5 40 (0.96%) Apache
6 32 (0.77%) nginx
7 24 (0.58%) WordPress
8 23 (0.55%) Jetty
9 14 (0.34%) Apache Airflow
9 14 (0.34%) NServiceBus
9 14 (0.34%) Tomcat
10 12 (0.29%) EPiServer
11 11 (0.26%) Camunda
12 10 (0.24%) Drupal
12 10 (0.24%) IIS
13 9 (0.22%) Headless CMS
14 8 (0.19%) IBM Domino
14 8 (0.19%) Umbraco
15 7 (0.17%) Apache Solr
15 7 (0.17%) OpenStack
Applications
1 35 (0.84%) Sketch
2 26 (0.62%) InVision
3 14 (0.34%) Microsoft Office
4 10 (0.24%) Chatbot
4 10 (0.24%) Microsoft Excel
5 8 (0.19%) Photoshop
6 5 (0.12%) Adobe XD
7 3 (0.072%) Adobe Illustrator
8 2 (0.048%) Spreadsheet
Business Applications
1 27 (0.65%) Payment Gateway
2 21 (0.50%) Dynamics CRM
3 17 (0.41%) Magento
4 15 (0.36%) Oracle BPM
5 8 (0.19%) Distributed Ledger
5 8 (0.19%) R3 Corda
6 7 (0.17%) Shopify
7 5 (0.12%) Refinitiv Enterprise Platform
7 5 (0.12%) RMDS
8 4 (0.096%) MetaTrader
9 2 (0.048%) Actimize
9 2 (0.048%) Salesforce.com CRM
10 1 (0.024%) IBM Operational Decision Manager
Cloud Services
1 1,508 (36.24%) AWS
2 997 (23.96%) Azure
3 657 (15.79%) GCP
4 515 (12.38%) Serverless
5 296 (7.11%) AWS Lambda
6 264 (6.34%) GitHub
7 233 (5.60%) SaaS
8 139 (3.34%) Amazon S3
9 92 (2.21%) Amazon EC2
10 91 (2.19%) npm
11 72 (1.73%) AWS CloudFormation
12 69 (1.66%) Amazon ECS
13 64 (1.54%) Azure Functions
14 58 (1.39%) Cloud Computing
15 56 (1.35%) Amazon SQS
16 54 (1.30%) PaaS
17 44 (1.06%) Slack
18 40 (0.96%) OpenShift
19 36 (0.87%) Azure Service Bus
19 36 (0.87%) Codefresh
Communications & Networking
1 212 (5.09%) Broadband
2 110 (2.64%) HTTP
3 34 (0.82%) NFC
4 33 (0.79%) Bluetooth
5 31 (0.75%) TCP/IP
6 27 (0.65%) Internet
7 24 (0.58%) MQTT
8 22 (0.53%) DVB
9 15 (0.36%) VoIP
10 11 (0.26%) Wi-Fi
10 11 (0.26%) WPA
10 11 (0.26%) ZigBee
11 9 (0.22%) 5G
11 9 (0.22%) WebEx
12 8 (0.19%) DSL
13 7 (0.17%) SMS
14 6 (0.14%) Intranet
15 5 (0.12%) HTTPS
16 4 (0.096%) BIG-IP
17 3 (0.072%) FTP
Database & Business Intelligence
1 472 (11.34%) SQL Server
2 467 (11.22%) NoSQL
3 380 (9.13%) MySQL
4 377 (9.06%) PostgreSQL
5 306 (7.35%) Relational Database
6 271 (6.51%) MongoDB
7 255 (6.13%) Redis
8 198 (4.76%) Big Data
9 125 (3.00%) RDBMS
10 121 (2.91%) Amazon DynamoDB
11 84 (2.02%) Amazon Aurora
12 79 (1.90%) Blockchain
13 61 (1.47%) Apache Cassandra
14 57 (1.37%) Hadoop
15 55 (1.32%) Amazon RDS
16 49 (1.18%) BigQuery
17 37 (0.89%) Data Warehouse
18 30 (0.72%) Hazelcast
19 27 (0.65%) Amazon Athena
19 27 (0.65%) SQL Server 2019
Development Applications
1 1,081 (25.98%) Git (software)
2 606 (14.56%) Jenkins
3 321 (7.71%) Selenium
4 261 (6.27%) Cypress.io
5 259 (6.22%) JUnit
6 220 (5.29%) JIRA
7 209 (5.02%) Octopus Deploy
8 205 (4.93%) Maven
9 204 (4.90%) NUnit
10 179 (4.30%) Cucumber
11 170 (4.09%) GitLab
12 167 (4.01%) Team Foundation Server
13 165 (3.97%) TeamCity
14 155 (3.73%) webpack
15 145 (3.48%) Postman
16 139 (3.34%) Mockito
17 134 (3.22%) Moq
18 127 (3.05%) Jasmine
19 118 (2.84%) Gradle
20 106 (2.55%) CircleCI
General
1 1,073 (25.79%) Finance
2 791 (19.01%) Social Skills
3 392 (9.42%) Banking
4 243 (5.84%) Analytical Skills
5 194 (4.66%) Retail
6 168 (4.04%) Games
7 161 (3.87%) Inclusion and Diversity
8 120 (2.88%) Marketing
9 110 (2.64%) Advertising
10 96 (2.31%) Publishing
11 92 (2.21%) Front Office
12 86 (2.07%) Public Sector
13 72 (1.73%) Investment Banking
14 64 (1.54%) Legal
15 60 (1.44%) Pharmaceutical
16 46 (1.11%) Telecoms
17 45 (1.08%) Financial Institution
18 36 (0.87%) Law
19 33 (0.79%) Manufacturing
20 32 (0.77%) Retail Banking
Job Titles
1 2,316 (55.66%) Developer
2 778 (18.70%) Senior Developer
3 709 (17.04%) Software Engineer
4 606 (14.56%) Java Developer
5 359 (8.63%) Full Stack Developer
6 308 (7.40%) .NET Developer
7 256 (6.15%) Senior Software Engineer
8 236 (5.67%) React Developer
9 230 (5.53%) Software Developer
10 211 (5.07%) Senior Java Developer
11 205 (4.93%) Front End Developer (Client-Side Developer)
12 193 (4.64%) Java Engineer
13 188 (4.52%) Lead Developer
14 176 (4.23%) C# Developer
15 126 (3.03%) Backend Developer
16 122 (2.93%) Senior .NET Developer
17 111 (2.67%) Senior React Developer
18 100 (2.40%) C# .NET Developer
19 99 (2.38%) PHP Developer
20 95 (2.28%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 1,430 (34.37%) React
2 937 (22.52%) Node.js
3 854 (20.52%) .NET
4 831 (19.97%) HTML
5 774 (18.60%) AngularJS
6 770 (18.51%) CSS
7 763 (18.34%) Spring
8 652 (15.67%) REST
9 557 (13.39%) RESTful
10 523 (12.57%) Spring Boot
11 490 (11.78%) Kafka
12 455 (10.93%) Web Services
13 422 (10.14%) HTML5
14 420 (10.09%) .NET Core
15 300 (7.21%) Jest
16 299 (7.19%) CSS3
17 292 (7.02%) Vue.js
18 290 (6.97%) ASP.NET
19 286 (6.87%) Redux
20 265 (6.37%) Sass
Miscellaneous
1 358 (8.60%) User Experience
2 283 (6.80%) Greenfield Project
3 211 (5.07%) Enterprise Software
4 197 (4.73%) Algorithms
5 188 (4.52%) Data Structures
6 181 (4.35%) Mobile App
7 179 (4.30%) Self-Motivation
8 168 (4.04%) Cloud Native
9 159 (3.82%) Social Media
10 90 (2.16%) Over-the-Top Content
11 86 (2.07%) Video\Live Streaming
12 81 (1.95%) Legacy Code
13 76 (1.83%) Virtual Team
14 69 (1.66%) STB
15 67 (1.61%) Blog
16 65 (1.56%) Foreign Exchange (FX)
17 54 (1.30%) NHS
17 54 (1.30%) Social Network
18 51 (1.23%) Life Science
19 49 (1.18%) Derivative
Operating Systems
1 312 (7.50%) Linux
2 246 (5.91%) Android
3 240 (5.77%) Apple iOS
4 181 (4.35%) Windows
5 152 (3.65%) Unix
6 25 (0.60%) Mac OS
7 19 (0.46%) Mesosphere
8 16 (0.38%) VMS
9 10 (0.24%) Mac OS X
10 7 (0.17%) Ubuntu
11 4 (0.096%) CentOS
12 3 (0.072%) DC/OS
12 3 (0.072%) Embedded Linux
13 1 (0.024%) Amazon Linux
13 1 (0.024%) Tizen
13 1 (0.024%) tvOS
13 1 (0.024%) webOS
13 1 (0.024%) Windows Server
13 1 (0.024%) Windows Server 2012
Processes & Methodologies
1 3,077 (73.95%) Agile Software Development
2 1,588 (38.16%) Software Engineering
3 1,537 (36.94%) CI/CD
4 1,395 (33.53%) Microservices
5 1,294 (31.10%) BDD
6 1,104 (26.53%) DevOps
7 1,057 (25.40%) Full Stack Development
8 936 (22.49%) Continuous Integration
9 925 (22.23%) Scrum
10 857 (20.60%) Test Automation
11 619 (14.88%) Mentoring
12 613 (14.73%) OO
13 566 (13.60%) Unit Testing
14 559 (13.43%) Problem-Solving
15 501 (12.04%) Continuous Delivery
16 478 (11.49%) SOLID
17 448 (10.77%) Pair Programming
18 443 (10.65%) SDLC
19 407 (9.78%) Front End Development
20 393 (9.44%) Analytics
Programming Languages
1 1,803 (43.33%) JavaScript
2 1,655 (39.77%) Java
3 935 (22.47%) SQL
4 931 (22.37%) C#
5 871 (20.93%) Python
6 799 (19.20%) TypeScript
7 325 (7.81%) Java 8
8 247 (5.94%) ES6
9 241 (5.79%) Go
10 235 (5.65%) Scala
11 224 (5.38%) PHP
12 200 (4.81%) Kotlin
13 185 (4.45%) Java 11
14 181 (4.35%) Ruby
15 144 (3.46%) C++
16 112 (2.69%) T-SQL
17 109 (2.62%) C
18 106 (2.55%) Bash
19 81 (1.95%) Clojure
20 68 (1.63%) PowerShell
Qualifications
1 426 (10.24%) Degree
2 249 (5.98%) Computer Science Degree
3 39 (0.94%) Security Cleared
4 36 (0.87%) SC Cleared
5 31 (0.75%) Master's Degree
6 16 (0.38%) SANS
7 15 (0.36%) ISTQB
8 10 (0.24%) PMI Certification
9 7 (0.17%) AWS Certification
9 7 (0.17%) ISEB
10 6 (0.14%) PhD
11 4 (0.096%) ISTQB Foundation Certification
11 4 (0.096%) Numerate Degree
11 4 (0.096%) OCPJP
11 4 (0.096%) Oracle Certification
11 4 (0.096%) Sun Certification
12 2 (0.048%) A+ Certification
13 1 (0.024%) CTC Cleared
13 1 (0.024%) ISTQB Advanced Certification
13 1 (0.024%) Microsoft Certification
Quality Assurance & Compliance
1 498 (11.97%) QA
2 100 (2.40%) Accessibility
3 22 (0.53%) SLA
4 17 (0.41%) MiFID
5 16 (0.38%) WCAG
6 15 (0.36%) EMIR
7 14 (0.34%) GDPR
8 7 (0.17%) WAI
9 6 (0.14%) PSD2
10 2 (0.048%) PCI DSS
11 1 (0.024%) ISO/IEC 27001
11 1 (0.024%) SEPA
System Software
1 1,352 (32.49%) Docker
2 21 (0.50%) Apache ZooKeeper
3 17 (0.41%) Postfix
4 11 (0.26%) Active Directory
5 7 (0.17%) Varnish
6 4 (0.096%) VMware Infrastructure
7 3 (0.072%) Virtual Machines
8 1 (0.024%) Ceph
8 1 (0.024%) Firmware
8 1 (0.024%) NFS
Systems Management
1 1,024 (24.61%) Kubernetes
2 364 (8.75%) Terraform
3 174 (4.18%) Grafana
4 106 (2.55%) Ansible
5 83 (1.99%) Prometheus
6 61 (1.47%) Opscode Chef
6 61 (1.47%) Puppet
7 56 (1.35%) Kibana
8 48 (1.15%) logstash
9 43 (1.03%) Istio
10 36 (0.87%) Single Sign-On
11 30 (0.72%) Opsgenie
12 25 (0.60%) MIIS
13 22 (0.53%) Rancher
14 19 (0.46%) Automic
14 19 (0.46%) HAProxy
14 19 (0.46%) Pingdom
14 19 (0.46%) ZABBIX
15 16 (0.38%) Consul
16 14 (0.34%) linkerd
Vendors
1 395 (9.49%) Google
2 268 (6.44%) Microsoft
3 113 (2.72%) Oracle
4 68 (1.63%) Apple
5 50 (1.20%) LexisNexis
6 44 (1.06%) Splunk
7 32 (0.77%) New Relic
7 32 (0.77%) Spotify
8 31 (0.75%) Twitter
9 26 (0.62%) Databricks
10 25 (0.60%) YouTube
11 23 (0.55%) Cognizant
12 21 (0.50%) Sybase
13 20 (0.48%) Salesforce.com
14 18 (0.43%) MuleSoft
15 17 (0.41%) SAP
16 16 (0.38%) Confluent
17 15 (0.36%) Atlassian
17 15 (0.36%) Sun
17 15 (0.36%) Zend