Period
to 28 May 2020

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 28 May 2020 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
28 May 2020
Same period 2019 Same period 2018
Rank 23 15 12
Rank change year-on-year -8 -3 +1
Contract jobs citing TDD 1,394 3,546 4,498
As % of all contract jobs advertised in London 7.20% 8.84% 9.87%
As % of the Processes & Methodologies category 8.14% 9.91% 11.16%
Number of daily rates quoted 1,128 2,985 3,773
Median daily rate £550 £525 £525
Median daily rate % change year-on-year +4.76% - +5.00%
10th Percentile £425 £413 £406
90th Percentile £700 £675 £650
England median daily rate £525 £525 £500
% change year-on-year - +5.00% +7.53%
Number of hourly rates quoted 19 6 5
Median hourly rate £61.50 £35.00 £45.00
Median hourly rate % change year-on-year +75.71% -22.22% +20.00%
10th Percentile £50.60 £35.00 £40.57
90th Percentile £69.50 £47.50 £49.00
England median hourly rate £55.00 £35.00 £45.00
% change year-on-year +57.14% -22.22% +9.76%

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 17,122 35,764 40,320
As % of all contract IT jobs advertised in London 88.42% 89.13% 88.50%
Number of daily rates quoted 11,778 25,475 29,121
Median daily rate £525 £520 £500
Median daily rate % change year-on-year +0.96% +4.00% +5.26%
10th Percentile £325 £338 £325
90th Percentile £700 £675 £675
England median daily rate £475 £475 £463
% change year-on-year - +2.70% +2.78%
Number of hourly rates quoted 294 403 564
Median hourly rate £35.00 £25.50 £25.00
Median hourly rate % change year-on-year +37.25% +2.00% -
10th Percentile £15.00 £12.50 £13.83
90th Percentile £54.63 £53.75 £50.35
Median hourly rate £28.00 £24.91 £22.00
% change year-on-year +12.40% +13.23% -13.73%

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 28 May 2020.

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 28 May 2020.

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 28 May 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -5 261 £550 - 105
South London +6 70 £525 +5.00% 6
West London +6 64 £535 +1.90% 28
East London -4 34 £550 - 9
North London +17 4 £375 -25.00%
TDD
England

For the 6 months to 28 May 2020, 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 1,017 (72.96%) Agile Software Development
2 579 (41.54%) Java
3 551 (39.53%) BDD
4 458 (32.86%) JavaScript
5 359 (25.75%) Microservices
6 328 (23.53%) DevOps
7 298 (21.38%) Scrum
7 298 (21.38%) AWS
8 286 (20.52%) Test Automation
9 272 (19.51%) C#
10 270 (19.37%) Azure
11 266 (19.08%) Pair Programming
12 264 (18.94%) Git (software)
13 262 (18.79%) .NET
14 258 (18.51%) SQL
15 253 (18.15%) React
16 248 (17.79%) Finance
17 244 (17.50%) AngularJS
18 242 (17.36%) HTML
19 236 (16.93%) Docker
20 235 (16.86%) Jenkins
21 234 (16.79%) Continuous Integration
22 227 (16.28%) Spring
23 214 (15.35%) Software Engineering
24 201 (14.42%) CSS
25 190 (13.63%) Web Services
26 184 (13.20%) Banking
27 183 (13.13%) Python
27 183 (13.13%) JIRA
28 180 (12.91%) RESTful

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 78 (5.60%) Confluence
2 60 (4.30%) Elasticsearch
3 35 (2.51%) Apache Spark
4 23 (1.65%) IIS
5 16 (1.15%) Oracle SOA Suite
6 11 (0.79%) Apache
6 11 (0.79%) Cloud Foundry
7 9 (0.65%) Oracle Coherence
7 9 (0.65%) Tomcat
8 6 (0.43%) JBoss
8 6 (0.43%) SharePoint
9 5 (0.36%) Apache Airflow
9 5 (0.36%) Apache Solr
9 5 (0.36%) CMS
9 5 (0.36%) WebLogic
10 4 (0.29%) WordPress
11 3 (0.22%) Jetty
11 3 (0.22%) WebSphere
12 2 (0.14%) Mule
12 2 (0.14%) Red Hat Fuse
Applications
1 9 (0.65%) Microsoft Excel
2 6 (0.43%) Zeplin
3 4 (0.29%) Microsoft Office
4 1 (0.072%) Adobe Illustrator
4 1 (0.072%) Chatbot
4 1 (0.072%) Photoshop
4 1 (0.072%) Sketch
Business Applications
1 13 (0.93%) SAP Oil and Gas
2 6 (0.43%) SAP Hybris
3 3 (0.22%) Magento
3 3 (0.22%) Oracle BPM
3 3 (0.22%) Payment Gateway
4 2 (0.14%) Dynamics CRM
5 1 (0.072%) FINCAD Analytics
5 1 (0.072%) ION MarketView
5 1 (0.072%) Markit EDM
5 1 (0.072%) PolarLake
5 1 (0.072%) Shopify
5 1 (0.072%) Sparx Enterprise Architect
Cloud Services
1 298 (21.38%) AWS
2 270 (19.37%) Azure
3 91 (6.53%) GitHub
4 55 (3.95%) Serverless
5 49 (3.52%) GCP
6 28 (2.01%) Amazon EC2
7 26 (1.87%) AWS Lambda
8 21 (1.51%) Amazon S3
9 19 (1.36%) PaaS
10 14 (1.00%) npm
11 10 (0.72%) Amazon Kinesis
12 9 (0.65%) OpenShift
12 9 (0.65%) Power Platform
12 9 (0.65%) SaaS
13 8 (0.57%) Amazon EMR
13 8 (0.57%) Amazon SQS
14 7 (0.50%) AWS CloudFormation
14 7 (0.50%) Azure Functions
14 7 (0.50%) Slack
15 6 (0.43%) Amazon Glacier
Communications & Networking
1 38 (2.73%) HTTP
2 10 (0.72%) Internet
3 8 (0.57%) TCP/IP
4 6 (0.43%) RTMP
5 5 (0.36%) Skype
6 4 (0.29%) DNS
7 3 (0.22%) HTTPS
8 2 (0.14%) DHCP
8 2 (0.14%) FTP
8 2 (0.14%) Intrusion Detection
8 2 (0.14%) MQTT
8 2 (0.14%) Multicast
8 2 (0.14%) SSL
9 1 (0.072%) Network Security
9 1 (0.072%) NFC
9 1 (0.072%) OpenLDAP
9 1 (0.072%) PuTTY
9 1 (0.072%) Software-Defined Networking
9 1 (0.072%) SSH
9 1 (0.072%) WAN
Database & Business Intelligence
1 123 (8.82%) SQL Server
2 95 (6.81%) MongoDB
2 95 (6.81%) NoSQL
3 81 (5.81%) PostgreSQL
4 72 (5.16%) Relational Database
5 67 (4.81%) MySQL
6 38 (2.73%) Big Data
7 28 (2.01%) Amazon DynamoDB
7 28 (2.01%) Redis
8 25 (1.79%) Apache Cassandra
9 23 (1.65%) Hadoop
9 23 (1.65%) RDBMS
10 19 (1.36%) Amazon RDS
11 17 (1.22%) Azure SQL Database
11 17 (1.22%) HBase
12 15 (1.08%) Cosmos DB
13 13 (0.93%) Data Lake
13 13 (0.93%) Data Warehouse
14 10 (0.72%) Oracle Database
15 9 (0.65%) Amazon Redshift
Development Applications
1 264 (18.94%) Git (software)
2 235 (16.86%) Jenkins
3 183 (13.13%) JIRA
4 93 (6.67%) Maven
5 82 (5.88%) JUnit
6 77 (5.52%) Cucumber
7 71 (5.09%) TeamCity
8 65 (4.66%) Selenium
9 63 (4.52%) GitLab
10 61 (4.38%) Mockito
11 52 (3.73%) Subversion
12 42 (3.01%) Gradle
13 41 (2.94%) Visual Studio Team System
14 36 (2.58%) Travis CI
15 35 (2.51%) Octopus Deploy
16 31 (2.22%) Jasmine
17 29 (2.08%) SpecFlow
18 27 (1.94%) RSpec
18 27 (1.94%) Team Foundation Server
19 23 (1.65%) Moq
General
1 248 (17.79%) Finance
2 184 (13.20%) Banking
3 138 (9.90%) Front Office
4 73 (5.24%) Investment Banking
5 66 (4.73%) Public Sector
6 24 (1.72%) Retail
7 17 (1.22%) Games
7 17 (1.22%) Marketing
8 13 (0.93%) Automotive
8 13 (0.93%) Telecoms
9 12 (0.86%) Back Office
10 11 (0.79%) Financial Institution
11 10 (0.72%) Retail Banking
12 8 (0.57%) Legal
13 6 (0.43%) Advertising
14 5 (0.36%) Electronics
14 5 (0.36%) Manufacturing
15 4 (0.29%) Pharmaceutical
15 4 (0.29%) Publishing
16 2 (0.14%) Military
Job Titles
1 1,055 (75.68%) Developer
2 332 (23.82%) Java Developer
3 168 (12.05%) Senior Developer
4 147 (10.55%) React Developer
5 122 (8.75%) C# Developer
6 115 (8.25%) .NET Developer
7 97 (6.96%) JavaScript Developer
8 92 (6.60%) Full Stack Developer
9 64 (4.59%) AWS Developer
10 62 (4.45%) Front End Developer (Client-Side Developer)
11 61 (4.38%) Angular Developer
11 61 (4.38%) Python Developer
12 60 (4.30%) Senior Java Developer
13 49 (3.52%) Software Engineer
14 44 (3.16%) Azure Developer
15 42 (3.01%) HTML Developer
16 39 (2.80%) Scala Developer
17 37 (2.65%) Front Office Developer
18 35 (2.51%) UI Developer
19 33 (2.37%) Ruby Developer
Libraries, Frameworks & Software Standards
1 262 (18.79%) .NET
2 253 (18.15%) React
3 244 (17.50%) AngularJS
4 242 (17.36%) HTML
5 227 (16.28%) Spring
6 201 (14.42%) CSS
7 190 (13.63%) Web Services
8 180 (12.91%) RESTful
9 161 (11.55%) Node.js
10 153 (10.98%) REST
11 109 (7.82%) Redux
11 109 (7.82%) Spring Boot
12 104 (7.46%) Kafka
13 98 (7.03%) HTML5
14 80 (5.74%) .NET Core
15 76 (5.45%) ASP.NET
16 59 (4.23%) SOAP
17 57 (4.09%) Ruby on Rails
18 56 (4.02%) ASP.NET Web API
19 54 (3.87%) .NET Framework
Miscellaneous
1 135 (9.68%) Greenfield Project
2 94 (6.74%) User Experience
3 75 (5.38%) Fixed Income
4 63 (4.52%) Foreign Exchange (FX)
5 59 (4.23%) Analytical Skills
6 42 (3.01%) Derivative
7 40 (2.87%) Data Structures
8 37 (2.65%) Mobile App
9 32 (2.30%) Algorithms
10 25 (1.79%) Equities
11 22 (1.58%) Enterprise Software
12 16 (1.15%) BYOD
13 15 (1.08%) Credit Risk
13 15 (1.08%) Public Cloud
14 13 (0.93%) Cloud Native
15 12 (0.86%) Linux Command Line
15 12 (0.86%) Virtual Team
16 10 (0.72%) Hedge funds
16 10 (0.72%) Management Information System
17 9 (0.65%) Client/Server
Operating Systems
1 107 (7.68%) Linux
2 80 (5.74%) Unix
3 60 (4.30%) Android
4 54 (3.87%) Apple iOS
5 43 (3.08%) Mac OS X
6 29 (2.08%) Windows
7 11 (0.79%) Windows Server
8 5 (0.36%) Mac OS
9 3 (0.22%) Red Hat Enterprise Linux
9 3 (0.22%) Solaris
9 3 (0.22%) tvOS
10 2 (0.14%) CentOS
11 1 (0.072%) CoreOS
11 1 (0.072%) Debian
11 1 (0.072%) Ubuntu
Processes & Methodologies
1 1,017 (72.96%) Agile Software Development
2 551 (39.53%) BDD
3 359 (25.75%) Microservices
4 328 (23.53%) DevOps
5 298 (21.38%) Scrum
6 286 (20.52%) Test Automation
7 266 (19.08%) Pair Programming
8 234 (16.79%) Continuous Integration
9 214 (15.35%) Software Engineering
10 118 (8.46%) OO
11 116 (8.32%) Kanban
12 113 (8.11%) MVC
13 110 (7.89%) Front End Development
14 105 (7.53%) Continuous Delivery
15 102 (7.32%) Continuous Improvement
16 101 (7.25%) Unit Testing
17 99 (7.10%) User Stories
18 97 (6.96%) Problem-Solving
19 86 (6.17%) Web Development
20 82 (5.88%) Multithreading
Programming Languages
1 579 (41.54%) Java
2 458 (32.86%) JavaScript
3 272 (19.51%) C#
4 258 (18.51%) SQL
5 183 (13.13%) Python
6 157 (11.26%) Java 8
7 116 (8.32%) TypeScript
8 86 (6.17%) Ruby
9 69 (4.95%) Scala
10 58 (4.16%) Kotlin
11 42 (3.01%) C++
11 42 (3.01%) ES6
12 35 (2.51%) PHP
13 31 (2.22%) Apple Swift
14 21 (1.51%) PowerShell
14 21 (1.51%) T-SQL
15 20 (1.43%) Objective-C
16 19 (1.36%) Go
17 17 (1.22%) Groovy
18 14 (1.00%) R
Qualifications
1 148 (10.62%) Security Cleared
2 92 (6.60%) SC Cleared
3 59 (4.23%) Degree
4 18 (1.29%) DV Cleared
5 17 (1.22%) Computer Science Degree
6 16 (1.15%) BC Cleared
7 15 (1.08%) ISTQB
8 10 (0.72%) BPSS Clearance
9 6 (0.43%) ISEB
10 5 (0.36%) Master's Degree
11 4 (0.29%) DBS Check
12 2 (0.14%) ISTQB Advanced Certification
12 2 (0.14%) Microsoft Certification
13 1 (0.072%) AWS Certification
13 1 (0.072%) IIBA
13 1 (0.072%) ISTQB Foundation Certification
13 1 (0.072%) Numerate Degree
Quality Assurance & Compliance
1 96 (6.89%) QA
2 7 (0.50%) Data Quality
2 7 (0.50%) PMO
3 6 (0.43%) GDPR
4 5 (0.36%) MiFID
5 3 (0.22%) WCAG
6 2 (0.14%) Disclosure Scotland
6 2 (0.14%) EMIR
System Software
1 236 (16.93%) Docker
2 10 (0.72%) HDFS
3 5 (0.36%) VMware Infrastructure
3 5 (0.36%) vSphere
4 4 (0.29%) Active Directory
5 2 (0.14%) BusyBox
6 1 (0.072%) Apache ZooKeeper
6 1 (0.072%) Postfix
6 1 (0.072%) Veritas Cluster Server
6 1 (0.072%) VMware ESXi
Systems Management
1 172 (12.34%) Kubernetes
2 56 (4.02%) Terraform
3 41 (2.94%) Ansible
4 12 (0.86%) Opscode Chef
5 10 (0.72%) Puppet
6 8 (0.57%) Hadoop YARN
7 5 (0.36%) Grafana
8 4 (0.29%) MIIS
9 3 (0.22%) Prometheus
9 3 (0.22%) Rundeck
10 2 (0.14%) Docker Swarm
10 2 (0.14%) Graphite
10 2 (0.14%) HP ALM
10 2 (0.14%) Istio
10 2 (0.14%) Nagios
10 2 (0.14%) TeamSite
11 1 (0.072%) Kibana
11 1 (0.072%) Mesos
11 1 (0.072%) Pacemaker
11 1 (0.072%) ZABBIX
Vendors
1 88 (6.31%) Oracle
2 85 (6.10%) Microsoft
3 36 (2.58%) Atlassian
4 34 (2.44%) SAP
5 29 (2.08%) hybris
6 28 (2.01%) Google
7 23 (1.65%) DevExpress
8 17 (1.22%) Adobe
9 15 (1.08%) RedGate
10 12 (0.86%) Tableau
11 10 (0.72%) CA Agile Central
12 9 (0.65%) Gigya
13 8 (0.57%) Informatica
13 8 (0.57%) Salesforce.com
14 7 (0.50%) Apple
14 7 (0.50%) CA
14 7 (0.50%) IBM
14 7 (0.50%) Talend
15 6 (0.43%) Databricks
15 6 (0.43%) VMware