Period
to 19 April 2019

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 19 April 2019 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
19 Apr 2019
Same period 2018 Same period 2017
Rank 15 11 13
Rank change year-on-year -4 +2 +2
Contract jobs citing TDD 3,780 4,629 3,408
As % of all contract IT jobs advertised in London 8.95% 10.03% 8.43%
As % of the Processes & Methodologies category 10.11% 11.41% 9.69%
Number of daily rates quoted 3,139 3,871 2,846
London median daily rate £538 £525 £490
Median daily rate % change year-on-year +2.38% +7.14% -0.51%
10th Percentile £413 £406 £363
90th Percentile £675 £638 £638
England median daily rate £525 £500 £463
% change year-on-year +5.00% +8.11% +2.78%
Number of hourly rates quoted 6 5 4
London median hourly rate £35.00 £45.00 £47.00
Median hourly rate % change year-on-year -22.22% -4.26% -6.00%
England median hourly rate £42.00 £45.00 £41.00
% change year-on-year -6.67% +9.76% -3.53%

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 37,386 40,573 35,160
As % of all contract IT jobs advertised in London 88.57% 87.90% 86.97%
Number of daily rates quoted 26,689 29,302 25,280
London median daily rate £513 £500 £475
Median daily rate % change year-on-year +2.50% +5.26% +5.56%
10th Percentile £325 £315 £313
90th Percentile £675 £675 £650
England median daily rate £475 £463 £445
% change year-on-year +2.70% +3.93% +4.71%
Number of hourly rates quoted 422 561 390
London median hourly rate £28.75 £24.09 £25.00
Median hourly rate % change year-on-year +19.34% -3.64% +19.05%
10th Percentile £12.75 £14.00 £12.73
90th Percentile £53.75 £50.50 £53.81
England median hourly rate £24.96 £22.50 £25.00
% change year-on-year +10.91% -10.00% +8.70%

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
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in London.

Contractor daily rate trend for TDD in London

TDD
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing TDD in London over the 6 months to 19 April 2019.

Contractor daily rate histogram for TDD in London

TDD
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in London.

Contractor hourly rate trend for TDD in London

TDD
Contractor Hourly Rate Histogram in London

The hourly rate distribution of IT jobs citing TDD in London over the 6 months to 19 April 2019.

Contractor 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 19 April 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -3 923 £550 +4.76% 164
West London -7 182 £520 -0.95% 57
East London +14 154 £550 +4.76% 20
South London -2 144 £500 +5.26% 5
North London -6 9 £450 +2.86% 5
TDD
England

For the 6 months to 19 April 2019, 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 2,799 (74.05%) Agile Software Development
2 1,625 (42.99%) Java
3 1,596 (42.22%) BDD
4 1,340 (35.45%) JavaScript
5 1,103 (29.18%) Microservices
6 965 (25.53%) Amazon AWS
7 928 (24.55%) Git (software)
8 867 (22.94%) Scrum
9 838 (22.17%) Continuous Integration
10 807 (21.35%) Finance
11 788 (20.85%) HTML
12 780 (20.63%) AngularJS
13 740 (19.58%) Jenkins
14 729 (19.29%) React
15 705 (18.65%) Docker
16 704 (18.62%) C#
16 704 (18.62%) CSS
17 703 (18.60%) Test Automation
18 696 (18.41%) REST
19 686 (18.15%) RESTful
20 676 (17.88%) .NET
21 656 (17.35%) DevOps
22 645 (17.06%) Spring
23 626 (16.56%) Microsoft Azure
23 626 (16.56%) Node.js
24 594 (15.71%) SQL
25 547 (14.47%) Web Services
26 540 (14.29%) Java 8
27 516 (13.65%) Greenfield Project
28 510 (13.49%) Pair Programming

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
1 185 (4.89%) Confluence
2 181 (4.79%) Elasticsearch
3 100 (2.65%) Tomcat
4 98 (2.59%) Apache
5 90 (2.38%) WebSphere
6 89 (2.35%) Apache Spark
7 68 (1.80%) OpenStack
8 66 (1.75%) WebLogic
9 63 (1.67%) CMS
10 48 (1.27%) JBoss
11 36 (0.95%) Apache Solr
12 29 (0.77%) Drupal
13 24 (0.63%) Cloud Foundry
13 24 (0.63%) Oracle SOA Suite
14 22 (0.58%) MQSeries
15 21 (0.56%) SharePoint
16 20 (0.53%) IIS
17 17 (0.45%) Jetty
18 15 (0.40%) Mule
19 12 (0.32%) Sitecore CMS
Applications
1 18 (0.48%) Microsoft Excel
2 7 (0.19%) Spreadsheet
3 6 (0.16%) Photoshop
4 5 (0.13%) Adobe Illustrator
5 2 (0.053%) Microsoft Office
6 1 (0.026%) Chatbot
6 1 (0.026%) GIMP
6 1 (0.026%) InVision
6 1 (0.026%) Microsoft PowerPoint
6 1 (0.026%) SPSS
Business Applications
1 12 (0.32%) Payment Gateway
2 11 (0.29%) Dynamics CRM
2 11 (0.29%) Magento
3 6 (0.16%) Unit4 Business World
4 4 (0.11%) Summit
5 2 (0.053%) BusinessWorks
6 1 (0.026%) Distributed Ledger
6 1 (0.026%) Markit EDM
6 1 (0.026%) Salesforce.com CRM
6 1 (0.026%) SAP Hybris
6 1 (0.026%) Unica
Cloud Services
1 965 (25.53%) Amazon AWS
2 626 (16.56%) Microsoft Azure
3 144 (3.81%) GitHub
4 126 (3.33%) Serverless
5 114 (3.02%) Google Cloud Platform
6 103 (2.72%) Amazon EC2
7 78 (2.06%) SaaS
8 72 (1.90%) AWS Lambda
9 64 (1.69%) Amazon S3
10 61 (1.61%) PaaS
11 54 (1.43%) Amazon SQS
12 49 (1.30%) OpenShift
13 42 (1.11%) npm
14 40 (1.06%) AWS CloudFormation
15 38 (1.01%) Amazon CloudWatch
15 38 (1.01%) Virtual Private Cloud
16 24 (0.63%) Cloud Computing
17 21 (0.56%) Amazon Glacier
17 21 (0.56%) AWS CloudTrail
18 17 (0.45%) Yarn
Communications & Networking
1 137 (3.62%) HTTP
2 47 (1.24%) Internet
3 41 (1.08%) TCP/IP
4 36 (0.95%) AMQP
5 21 (0.56%) DNS
6 20 (0.53%) FTP
7 18 (0.48%) SSL
8 6 (0.16%) Firewall
9 5 (0.13%) SMTP
9 5 (0.13%) SSH
10 4 (0.11%) Bluetooth
10 4 (0.11%) HTTPS
10 4 (0.11%) Kerberos
11 3 (0.079%) Broadband
11 3 (0.079%) DHCP
11 3 (0.079%) Intranet
11 3 (0.079%) IPsec
11 3 (0.079%) Skype
12 2 (0.053%) DMARC
12 2 (0.053%) PuTTY
Database & Business Intelligence
1 427 (11.30%) NoSQL
2 341 (9.02%) SQL Server
3 313 (8.28%) MongoDB
4 304 (8.04%) PostgreSQL
5 249 (6.59%) Relational Database
6 218 (5.77%) MySQL
7 201 (5.32%) Apache Cassandra
8 143 (3.78%) Redis
9 132 (3.49%) Big Data
10 87 (2.30%) Hadoop
11 66 (1.75%) HBase
12 62 (1.64%) Azure SQL Database
13 48 (1.27%) Cosmos DB
14 38 (1.01%) RDBMS
15 37 (0.98%) Couchbase
16 35 (0.93%) Data Lake
17 34 (0.90%) Data Warehouse
18 33 (0.87%) Amazon DynamoDB
19 32 (0.85%) Neo4j
20 26 (0.69%) Amazon RDS
Development Applications
1 928 (24.55%) Git (software)
2 740 (19.58%) Jenkins
3 353 (9.34%) JIRA
4 310 (8.20%) Maven
5 273 (7.22%) Selenium
6 249 (6.59%) Cucumber
7 239 (6.32%) JUnit
8 213 (5.63%) TeamCity
9 192 (5.08%) Mockito
10 170 (4.50%) webpack
11 146 (3.86%) Subversion
12 133 (3.52%) NUnit
13 132 (3.49%) Mocha
14 114 (3.02%) Octopus Deploy
15 105 (2.78%) Jasmine
16 99 (2.62%) Gradle
17 96 (2.54%) SpecFlow
18 94 (2.49%) Bitbucket
19 93 (2.46%) Team Foundation Server
20 90 (2.38%) SonarQube
General
1 807 (21.35%) Finance
2 387 (10.24%) Banking
3 179 (4.74%) Front Office
4 131 (3.47%) Retail
5 110 (2.91%) Investment Banking
6 93 (2.46%) Marketing
7 61 (1.61%) Telecoms
8 58 (1.53%) Games
9 51 (1.35%) Financial Institution
10 44 (1.16%) Publishing
11 38 (1.01%) Manufacturing
12 34 (0.90%) Advertising
13 33 (0.87%) Electronics
14 26 (0.69%) Back Office
15 21 (0.56%) Legal
16 17 (0.45%) Law
17 12 (0.32%) Automotive
17 12 (0.32%) Retail Banking
18 4 (0.11%) General Ledger
19 3 (0.079%) German Language
Job Titles
1 2,941 (77.80%) Developer
2 978 (25.87%) Java Developer
3 502 (13.28%) Senior Developer
4 411 (10.87%) React Developer
5 336 (8.89%) .NET Developer
6 298 (7.88%) C# Developer
7 295 (7.80%) Full Stack Developer
8 287 (7.59%) JavaScript Developer
9 265 (7.01%) Front End Developer (Client-Side Developer)
10 190 (5.03%) AWS Developer
11 179 (4.74%) Senior Java Developer
12 173 (4.58%) Python Developer
13 171 (4.52%) Angular Developer
14 138 (3.65%) Agile Developer
15 125 (3.31%) Architect
16 122 (3.23%) C# .NET Developer
17 120 (3.17%) Scala Developer
18 111 (2.94%) Node.js Developer
19 104 (2.75%) Lead Developer
20 90 (2.38%) Software Developer
Libraries, Frameworks & Software Standards
1 788 (20.85%) HTML
2 780 (20.63%) AngularJS
3 729 (19.29%) React
4 704 (18.62%) CSS
5 696 (18.41%) REST
6 686 (18.15%) RESTful
7 676 (17.88%) .NET
8 645 (17.06%) Spring
9 626 (16.56%) Node.js
10 547 (14.47%) Web Services
11 393 (10.40%) HTML5
12 391 (10.34%) Spring Boot
13 379 (10.03%) Redux
14 298 (7.88%) Kafka
15 289 (7.65%) JSON
16 233 (6.16%) SOAP
17 230 (6.08%) CSS3
18 224 (5.93%) Sass
19 218 (5.77%) ASP.NET
20 215 (5.69%) Hibernate
Miscellaneous
1 516 (13.65%) Greenfield Project
2 238 (6.30%) User Experience
3 229 (6.06%) Fintech
4 141 (3.73%) Analytical Skills
5 140 (3.70%) Mobile App
6 105 (2.78%) Algorithms
7 89 (2.35%) Data Structures
8 69 (1.83%) Derivative
9 65 (1.72%) Fixed Income
10 63 (1.67%) Virtual Team
11 57 (1.51%) Hedge funds
12 47 (1.24%) Foreign Exchange (FX)
13 40 (1.06%) Video on Demand
14 36 (0.95%) Enterprise Software
15 35 (0.93%) Equities
16 34 (0.90%) Equity Derivative
16 34 (0.90%) Video\Live Streaming
17 23 (0.61%) Cloud Native
18 20 (0.53%) Public Cloud
19 18 (0.48%) Self-Motivation
Operating Systems
1 435 (11.51%) Linux
2 180 (4.76%) Unix
3 118 (3.12%) Android
4 112 (2.96%) Apple iOS
5 82 (2.17%) Windows
6 77 (2.04%) Mac OS X
7 17 (0.45%) Ubuntu
7 17 (0.45%) Windows Server
8 13 (0.34%) VMS
9 7 (0.19%) tvOS
10 6 (0.16%) Mac OS
10 6 (0.16%) Red Hat Enterprise Linux
11 4 (0.11%) CentOS
12 2 (0.053%) Debian
13 1 (0.026%) Solaris
13 1 (0.026%) Windows 10
Processes & Methodologies
1 2,799 (74.05%) Agile Software Development
2 1,596 (42.22%) BDD
3 1,103 (29.18%) Microservices
4 867 (22.94%) Scrum
5 838 (22.17%) Continuous Integration
6 703 (18.60%) Test Automation
7 656 (17.35%) DevOps
8 510 (13.49%) Pair Programming
9 430 (11.38%) Kanban
10 418 (11.06%) OO
11 378 (10.00%) Front End Development
11 378 (10.00%) Software Engineering
12 361 (9.55%) Unit Testing
13 349 (9.23%) MVC
14 335 (8.86%) Continuous Delivery
15 300 (7.94%) Web Development
16 288 (7.62%) E-Commerce
17 282 (7.46%) Open Source
18 249 (6.59%) Continuous Deployment
19 216 (5.71%) Problem-Solving
Programming Languages
1 1,625 (42.99%) Java
2 1,340 (35.45%) JavaScript
3 704 (18.62%) C#
4 594 (15.71%) SQL
5 540 (14.29%) Java 8
6 473 (12.51%) Python
7 282 (7.46%) Scala
8 265 (7.01%) ES6
9 214 (5.66%) TypeScript
10 203 (5.37%) Ruby
11 128 (3.39%) PHP
12 102 (2.70%) Kotlin
13 86 (2.28%) Bash Shell
14 76 (2.01%) Go
15 65 (1.72%) C++
16 61 (1.61%) Shell Script
17 54 (1.43%) Apple Swift
18 46 (1.22%) PowerShell
19 39 (1.03%) Groovy
20 38 (1.01%) PL/SQL
Qualifications
1 206 (5.45%) Degree
2 171 (4.52%) Security Cleared
3 142 (3.76%) SC Cleared
4 49 (1.30%) BPSS Clearance
5 40 (1.06%) Computer Science Degree
6 23 (0.61%) ISTQB
7 17 (0.45%) CTC Cleared
8 14 (0.37%) DBS Check
9 12 (0.32%) ISEB
9 12 (0.32%) Numerate Degree
10 9 (0.24%) Sun Certification
11 6 (0.16%) ISTQB Foundation Certification
11 6 (0.16%) PhD
12 4 (0.11%) PMI Certification
13 3 (0.079%) DV Cleared
14 2 (0.053%) BC Cleared
14 2 (0.053%) ISTQB Advanced Certification
15 1 (0.026%) AWS Certification
15 1 (0.026%) CFA
15 1 (0.026%) Project+ Certification
Quality Assurance & Compliance
1 267 (7.06%) QA
2 29 (0.77%) Data Quality
3 18 (0.48%) WCAG
4 13 (0.34%) Disclosure Scotland
5 10 (0.26%) MiFID
6 5 (0.13%) Dodd-Frank
6 5 (0.13%) EMIR
7 4 (0.11%) PSD2
8 2 (0.053%) GDPR
8 2 (0.053%) Government Security Classifications
8 2 (0.053%) IFRS
9 1 (0.026%) PCI DSS
9 1 (0.026%) PMO
9 1 (0.026%) WAI
System Software
1 705 (18.65%) Docker
2 50 (1.32%) VMware Infrastructure
3 45 (1.19%) vSphere
4 29 (0.77%) HDFS
5 18 (0.48%) Active Directory
6 4 (0.11%) Apache Flume
6 4 (0.11%) Virtual Machines
7 3 (0.079%) Apache ZooKeeper
7 3 (0.079%) Microsoft App-V
7 3 (0.079%) Xen
8 2 (0.053%) VMware Workstation
9 1 (0.026%) VirtualBox
Systems Management
1 397 (10.50%) Kubernetes
2 203 (5.37%) Ansible
3 149 (3.94%) Terraform
4 124 (3.28%) Puppet
5 114 (3.02%) Opscode Chef
6 45 (1.19%) Kibana
7 37 (0.98%) logstash
8 28 (0.74%) Mesos
9 27 (0.71%) Rancher
10 21 (0.56%) Prometheus
11 20 (0.53%) Grafana
12 19 (0.50%) Hadoop YARN
13 14 (0.37%) Packer
14 13 (0.34%) Control-M
14 13 (0.34%) Docker Swarm
15 9 (0.24%) Rundeck
16 8 (0.21%) Single Sign-On
17 7 (0.19%) Marathon
17 7 (0.19%) Oozie
17 7 (0.19%) systemd
Vendors
1 214 (5.66%) Oracle
2 201 (5.32%) Microsoft
3 165 (4.37%) Google
4 83 (2.20%) Splunk
5 58 (1.53%) VMware
6 52 (1.38%) Atlassian
7 41 (1.08%) SAP
8 36 (0.95%) IBM
9 26 (0.69%) Cadence
10 21 (0.56%) Salesforce.com
11 19 (0.50%) Red Hat
12 18 (0.48%) Sybase
13 17 (0.45%) DevExpress
14 16 (0.42%) Cypress Semiconductor
15 15 (0.40%) AppDynamics
15 15 (0.40%) MuleSoft
15 15 (0.40%) Sitecore
16 14 (0.37%) Apple
17 13 (0.34%) Cloudera
17 13 (0.34%) Informatica