Period
to

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 25 June 2022 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
England > London
6 months to
25 Jun 2022
Same period 2021 Same period 2020
Rank 43 27 27
Rank change year-on-year -16 0 -11
Contract jobs citing TDD 2,004 1,895 1,248
As % of all contract jobs advertised in London 5.15% 7.09% 7.13%
As % of the Processes & Methodologies category 5.63% 7.76% 7.93%
Number of daily rates quoted 1,552 1,466 1,020
10th Percentile £454 £425 £425
25th Percentile £525 £488 £475
Median daily rate (50th Percentile) £625 £575 £550
Median % change year-on-year +8.70% +4.55% -
75th Percentile £725 £638 £638
90th Percentile £800 £725 £700
England median daily rate £600 £550 £525
% change year-on-year +9.09% +4.76% -
Number of hourly rates quoted 24 11 16
10th Percentile - - £52.25
25th Percentile £35.00 £64.00 £59.25
Median hourly rate £61.50 £66.00 £62.00
Median % change year-on-year -6.82% +6.45% +3.33%
75th Percentile £75.10 £68.36 £65.32
90th Percentile £76.65 £68.86 £69.50
England median hourly rate £70.00 £64.50 £61.75
% change year-on-year +8.53% +4.45% +45.29%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for process or methodology skills.

All Process and Methodology Skills
London
Contract vacancies with a requirement for process or methodology skills 35,575 24,430 15,746
As % of all contract IT jobs advertised in London 91.48% 91.36% 89.94%
Number of daily rates quoted 26,026 17,472 11,332
10th Percentile £400 £358 £331
25th Percentile £475 £437 £425
Median daily rate (50th Percentile) £575 £525 £525
Median % change year-on-year +9.52% - +0.96%
75th Percentile £688 £638 £623
90th Percentile £788 £713 £713
England median daily rate £550 £500 £477
% change year-on-year +10.00% +4.73% +0.51%
Number of hourly rates quoted 375 241 183
10th Percentile £17.30 £15.73 £14.08
25th Percentile £23.91 £20.75 £19.87
Median hourly rate £37.50 £33.50 £33.50
Median % change year-on-year +11.94% - +48.89%
75th Percentile £53.75 £51.50 £47.83
90th Percentile £69.13 £66.50 £61.25
England median hourly rate £28.00 £24.33 £22.50
% change year-on-year +15.11% +8.11% -2.17%

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
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing TDD in London.

Daily rate trend for TDD in London

TDD
Daily Rate Histogram in London

Daily rate distribution for jobs citing TDD in London over the 6 months to 25 June 2022.

Daily rate histogram for TDD in London

TDD
Contractor Hourly Rate Trend in London

3-month moving average hourly rates quoted in jobs citing TDD in London.

Hourly rate trend for TDD in London

TDD
Hourly Rate Histogram in London

Hourly rate distribution of jobs citing TDD in London over the 6 months to 25 June 2022.

Hourly rate histogram for TDD in London

TDD
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the London region over the 6 months to 25 June 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Jobs
Central London -19 287 £638 +4.29% 159
South London +2 39 £613 +25.64% 10
West London -31 28 £650 +13.04% 57
East London -22 7 £550 +10.00% 40
TDD
England

For the 6 months to 25 June 2022, IT contractor 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 contract job ads across the London region with a requirement for TDD.

1 1,340 (66.87%) Agile
2 885 (44.16%) Java
3 685 (34.18%) CI/CD
4 670 (33.43%) BDD
5 631 (31.49%) Microservices
6 579 (28.89%) JavaScript
7 490 (24.45%) Azure
8 488 (24.35%) Scrum
9 475 (23.70%) Finance
10 457 (22.80%) Test Automation
11 453 (22.60%) AWS
12 441 (22.01%) DevOps
13 422 (21.06%) React
13 422 (21.06%) Kubernetes
14 415 (20.71%) Git (software)
15 394 (19.66%) C#
16 380 (18.96%) SQL
17 379 (18.91%) Docker
18 378 (18.86%) Continuous Integration
19 359 (17.91%) Spring
20 358 (17.86%) Software Engineering
21 351 (17.51%) Jenkins
22 345 (17.22%) .NET
23 334 (16.67%) Python
24 331 (16.52%) Social Skills
25 313 (15.62%) Banking
26 308 (15.37%) CSS
27 290 (14.47%) HTML
28 277 (13.82%) REST
29 269 (13.42%) Full Stack Development

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 92 (4.59%) Apache Spark
2 75 (3.74%) Confluence
3 53 (2.64%) Elasticsearch
4 35 (1.75%) Apache
5 28 (1.40%) SharePoint
6 27 (1.35%) Apache Airflow
7 24 (1.20%) Cloud Foundry
7 24 (1.20%) JBoss
8 20 (1.00%) Mule
9 19 (0.95%) Red Hat Fuse
10 13 (0.65%) CMS
11 12 (0.60%) Tomcat
12 11 (0.55%) WebSphere
13 8 (0.40%) Headless CMS
13 8 (0.40%) IIS
14 7 (0.35%) Adobe Experience Manager
14 7 (0.35%) nginx
15 6 (0.30%) Oracle Coherence
15 6 (0.30%) SharePoint 2013
16 5 (0.25%) WebSphere Application Server
Applications
1 8 (0.40%) Microsoft Excel
2 5 (0.25%) Microsoft Office
3 2 (0.100%) Photoshop
4 1 (0.050%) 3ds Max
4 1 (0.050%) Maya
4 1 (0.050%) Microsoft PowerPoint
4 1 (0.050%) Microsoft Project
4 1 (0.050%) MS Visio
Business Applications
1 6 (0.30%) Dynamics CRM
1 6 (0.30%) Endur
2 4 (0.20%) Shopify
3 2 (0.100%) BondVision
3 2 (0.100%) Distributed Ledger
3 2 (0.100%) IBM Planning Analytics
3 2 (0.100%) Magento
4 1 (0.050%) Dynamics AX
4 1 (0.050%) Dynamics NAV
4 1 (0.050%) Eikon
4 1 (0.050%) Payment Gateway
4 1 (0.050%) RMDS
4 1 (0.050%) Salesforce.com CRM
4 1 (0.050%) SAP Oil and Gas
Cloud Services
1 490 (24.45%) Azure
2 453 (22.60%) AWS
3 156 (7.78%) GCP
4 153 (7.63%) GitHub
5 106 (5.29%) Serverless
6 77 (3.84%) AWS Lambda
7 43 (2.15%) Amazon S3
8 42 (2.10%) PaaS
9 38 (1.90%) Azure AKS
10 37 (1.85%) Amazon SQS
10 37 (1.85%) Azure Service Bus
10 37 (1.85%) IaaS
11 29 (1.45%) Amazon EC2
11 29 (1.45%) OpenShift
12 26 (1.30%) AWS CloudFormation
12 26 (1.30%) Power Platform
13 25 (1.25%) SaaS
14 23 (1.15%) npm
15 22 (1.10%) Amazon EKS
15 22 (1.10%) Azure Monitor
Communications & Networking
1 33 (1.65%) HTTP
2 27 (1.35%) RTMP
3 23 (1.15%) MQTT
4 8 (0.40%) Internet
5 6 (0.30%) Firewall
5 6 (0.30%) FIX Connectivity
6 5 (0.25%) Bluetooth
6 5 (0.25%) Intrusion Detection
7 4 (0.20%) Broadband
7 4 (0.20%) HTTPS
8 3 (0.15%) AMQP
8 3 (0.15%) FTP
8 3 (0.15%) SSL
9 1 (0.050%) SMS
Database & Business Intelligence
1 153 (7.63%) SQL Server
2 141 (7.04%) PostgreSQL
3 140 (6.99%) Relational Database
4 139 (6.94%) NoSQL
5 134 (6.69%) MongoDB
6 98 (4.89%) Big Data
7 64 (3.19%) MySQL
8 46 (2.30%) Amazon DynamoDB
9 43 (2.15%) Redis
10 36 (1.80%) RDBMS
11 31 (1.55%) Delta Lake
12 29 (1.45%) Azure SQL Database
13 28 (1.40%) Oracle Database
14 18 (0.90%) Amazon Redshift
14 18 (0.90%) Hazelcast
15 17 (0.85%) Data Lake
15 17 (0.85%) Hadoop
16 15 (0.75%) Data Warehouse
16 15 (0.75%) Oracle Database 12c
17 14 (0.70%) SQL Server Integration Services
Development Applications
1 415 (20.71%) Git (software)
2 351 (17.51%) Jenkins
3 209 (10.43%) JIRA
4 206 (10.28%) Maven
5 124 (6.19%) Gradle
6 121 (6.04%) GitLab
7 115 (5.74%) Cucumber
8 110 (5.49%) JUnit
9 102 (5.09%) TeamCity
10 76 (3.79%) Selenium
11 61 (3.04%) Mockito
12 48 (2.40%) Artifactory
13 40 (2.00%) Cypress.io
14 38 (1.90%) SonarQube
15 37 (1.85%) Sonatype Nexus
16 36 (1.80%) Bitbucket
17 35 (1.75%) Subversion
18 33 (1.65%) IntelliJ
19 31 (1.55%) webpack
20 28 (1.40%) Eclipse
General
1 475 (23.70%) Finance
2 331 (16.52%) Social Skills
3 313 (15.62%) Banking
4 197 (9.83%) Front Office
5 145 (7.24%) Investment Banking
6 97 (4.84%) Analytical Skills
7 91 (4.54%) Public Sector
8 41 (2.05%) Games
9 39 (1.95%) Publishing
10 34 (1.70%) Legal
11 30 (1.50%) Retail
12 22 (1.10%) Back Office
13 19 (0.95%) Marketing
14 18 (0.90%) Law
15 16 (0.80%) Financial Institution
16 14 (0.70%) Telecoms
17 13 (0.65%) Automotive
17 13 (0.65%) Presentation Skills
18 11 (0.55%) Retail Banking
19 10 (0.50%) Influencing Skills
Job Titles
1 1,428 (71.26%) Developer
2 500 (24.95%) Java Developer
3 310 (15.47%) Senior Developer
4 155 (7.73%) .NET Developer
5 153 (7.63%) Python Developer
6 139 (6.94%) Senior Java Developer
7 136 (6.79%) C# Developer
8 132 (6.59%) Full Stack Developer
9 100 (4.99%) React Developer
10 95 (4.74%) Software Engineer
11 87 (4.34%) Java Engineer
12 75 (3.74%) JavaScript Developer
13 67 (3.34%) Scala Developer
14 57 (2.84%) Data Engineer
15 55 (2.74%) Front End Developer (Client-Side Developer)
16 53 (2.64%) C# .NET Developer
17 52 (2.59%) Agile Developer
18 45 (2.25%) Azure Developer
19 44 (2.20%) Scrum Master
20 43 (2.15%) Senior Python Developer
Libraries, Frameworks & Software Standards
1 422 (21.06%) React
2 359 (17.91%) Spring
3 345 (17.22%) .NET
4 308 (15.37%) CSS
5 290 (14.47%) HTML
6 277 (13.82%) REST
7 247 (12.33%) Spring Boot
8 246 (12.28%) Kafka
9 199 (9.93%) AngularJS
10 190 (9.48%) Node.js
11 175 (8.73%) RESTful
12 122 (6.09%) Web Services
13 118 (5.89%) .NET Core
14 107 (5.34%) HTML5
15 103 (5.14%) ASP.NET
16 93 (4.64%) Redux
17 88 (4.39%) Hibernate
18 84 (4.19%) .NET Framework
19 79 (3.94%) Django
20 75 (3.74%) WPF
Miscellaneous
1 103 (5.14%) Foreign Exchange (FX)
1 103 (5.14%) Greenfield Project
2 102 (5.09%) Fixed Income
3 98 (4.89%) User Experience
4 69 (3.44%) Cloud Native
5 65 (3.24%) Hedge funds
6 58 (2.89%) Derivative
6 58 (2.89%) Video\Live Streaming
7 48 (2.40%) Equities
8 47 (2.35%) Media Streaming
9 45 (2.25%) Algorithms
10 38 (1.90%) Mobile App
11 37 (1.85%) Self-Motivation
12 28 (1.40%) Data Structures
13 27 (1.35%) Management Information System
14 25 (1.25%) IoT
15 24 (1.20%) Legacy Systems
16 22 (1.10%) Credit Risk
16 22 (1.10%) Data Protection Act
17 20 (1.00%) Virtual Team
Operating Systems
1 144 (7.19%) Linux
2 68 (3.39%) Unix
3 50 (2.50%) Android
4 41 (2.05%) Apple iOS
5 30 (1.50%) Windows
6 9 (0.45%) Mac OS X
7 4 (0.20%) Windows Server
8 3 (0.15%) Red Hat Enterprise Linux
8 3 (0.15%) Ubuntu
9 2 (0.100%) MVS
9 2 (0.100%) Windows Server 2016
Processes & Methodologies
1 1,340 (66.87%) Agile
2 685 (34.18%) CI/CD
3 670 (33.43%) BDD
4 631 (31.49%) Microservices
5 488 (24.35%) Scrum
6 457 (22.80%) Test Automation
7 441 (22.01%) DevOps
8 378 (18.86%) Continuous Integration
9 358 (17.86%) Software Engineering
10 269 (13.42%) Full Stack Development
11 266 (13.27%) Pair Programming
12 220 (10.98%) OO
13 190 (9.48%) Kanban
14 180 (8.98%) Mentoring
15 164 (8.18%) Analytics
16 150 (7.49%) Problem-Solving
17 146 (7.29%) Continuous Delivery
17 146 (7.29%) Unit Testing
18 145 (7.24%) Fintech
19 135 (6.74%) Continuous Improvement
Programming Languages
1 885 (44.16%) Java
2 579 (28.89%) JavaScript
3 394 (19.66%) C#
4 380 (18.96%) SQL
5 334 (16.67%) Python
6 261 (13.02%) TypeScript
7 126 (6.29%) Kotlin
8 116 (5.79%) Scala
9 56 (2.79%) PowerShell
10 45 (2.25%) C
11 44 (2.20%) Go
12 38 (1.90%) C++
13 36 (1.80%) Ruby
14 35 (1.75%) PL/SQL
15 34 (1.70%) PHP
16 30 (1.50%) ES6
17 28 (1.40%) Shell Script
18 26 (1.30%) XAML
19 23 (1.15%) Apple Swift
20 19 (0.95%) Apex Code
Qualifications
1 122 (6.09%) Security Cleared
2 108 (5.39%) SC Cleared
3 100 (4.99%) Degree
4 33 (1.65%) Computer Science Degree
5 8 (0.40%) AWS Certification
5 8 (0.40%) BPSS Clearance
6 5 (0.25%) APMP
6 5 (0.25%) CEH
6 5 (0.25%) CISM
6 5 (0.25%) CISSP
6 5 (0.25%) Numerate Degree
6 5 (0.25%) PRINCE2 Practitioner
7 3 (0.15%) CFA
7 3 (0.15%) ISEB
7 3 (0.15%) ISTQB
8 2 (0.100%) ITIL Certification
8 2 (0.100%) MBA
8 2 (0.100%) MCAD
8 2 (0.100%) Microsoft Certification
8 2 (0.100%) PhD
Quality Assurance & Compliance
1 122 (6.09%) QA
2 32 (1.60%) Accessibility
3 10 (0.50%) GDPR
4 6 (0.30%) Data Quality
5 5 (0.25%) MiFID
6 4 (0.20%) SLA
7 2 (0.100%) WCAG
8 1 (0.050%) Disclosure Scotland
8 1 (0.050%) EMIR
8 1 (0.050%) ISO 20022
8 1 (0.050%) Sarbanes-Oxley
8 1 (0.050%) WAI
System Software
1 379 (18.91%) Docker
2 8 (0.40%) HDFS
3 7 (0.35%) Active Directory
3 7 (0.35%) Virtual Machines
4 4 (0.20%) VirtualBox
5 2 (0.100%) OpenAM
5 2 (0.100%) Postfix
6 1 (0.050%) OpenDJ
6 1 (0.050%) VMware Infrastructure
6 1 (0.050%) vSphere
6 1 (0.050%) zsh
Systems Management
1 422 (21.06%) Kubernetes
2 188 (9.38%) Terraform
3 108 (5.39%) Ansible
4 45 (2.25%) Grafana
5 40 (2.00%) Prometheus
6 25 (1.25%) Puppet
7 24 (1.20%) Istio
8 13 (0.65%) Kibana
9 6 (0.30%) Netcool
10 5 (0.25%) Argo
10 5 (0.25%) logstash
11 3 (0.15%) Opscode Chef
12 2 (0.100%) Active Directory Federation Services
12 2 (0.100%) HP Fortify
12 2 (0.100%) ITRS Geneos
13 1 (0.050%) Docker Swarm
13 1 (0.050%) Fortio
13 1 (0.050%) Kiali
13 1 (0.050%) Rancher
13 1 (0.050%) Single Sign-On
Vendors
1 165 (8.23%) Microsoft
2 120 (5.99%) Oracle
3 72 (3.59%) Databricks
4 53 (2.64%) Google
5 43 (2.15%) DevExpress
5 43 (2.15%) Telerik
6 42 (2.10%) Salesforce.com
7 30 (1.50%) AppDynamics
8 28 (1.40%) Sybase
9 24 (1.20%) Splunk
10 18 (0.90%) IBM
11 15 (0.75%) New Relic
12 13 (0.65%) Adobe
12 13 (0.65%) Salesforce Marketing Cloud
13 11 (0.55%) Apple
14 9 (0.45%) Atlassian
14 9 (0.45%) ESRI
14 9 (0.45%) ForgeRock
14 9 (0.45%) OpenLink
15 7 (0.35%) Solace