Period
to 19 August 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 August 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 Aug 2019
Same period 2018 Same period 2017
Rank 15 11 11
Rank change year-on-year -4 0 +6
Contract jobs citing TDD 3,386 4,608 4,167
As % of all contract IT jobs advertised in London 8.56% 10.12% 9.67%
As % of the Processes & Methodologies category 9.64% 11.45% 10.97%
Number of daily rates quoted 2,799 3,762 3,430
London median daily rate £550 £525 £500
Median daily rate % change year-on-year +4.76% +5.00% +2.56%
10th Percentile £419 £413 £375
90th Percentile £700 £668 £638
England median daily rate £525 £500 £475
% change year-on-year +5.00% +5.26% +5.56%
Number of hourly rates quoted 3 4 3
London median hourly rate £60.00 £34.75 £32.50
Median hourly rate % change year-on-year +72.66% +6.92% -40.91%
10th Percentile £40.00 £16.45 £31.25
90th Percentile £70.40 £65.42 £37.75
England median hourly rate £38.74 £43.75 £41.50
% change year-on-year -11.46% +5.42% +3.75%

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 35,135 40,255 37,972
As % of all contract IT jobs advertised in London 88.79% 88.42% 88.14%
Number of daily rates quoted 25,178 29,090 27,155
London median daily rate £520 £500 £500
Median daily rate % change year-on-year +4.00% +0.10% +8.00%
10th Percentile £338 £325 £313
90th Percentile £688 £675 £656
England median daily rate £475 £463 £450
% change year-on-year +2.70% +2.78% +5.88%
Number of hourly rates quoted 413 528 385
London median hourly rate £23.00 £23.00 £24.00
Median hourly rate % change year-on-year - -4.17% +14.29%
10th Percentile £12.50 £14.00 £12.93
90th Percentile £57.30 £53.75 £50.00
England median hourly rate £25.00 £21.37 £24.00
% change year-on-year +17.00% -10.97% +4.35%

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 August 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 August 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 August 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 -4 827 £550 +4.76% 305
South London -3 134 £475 -9.52% 23
West London -23 115 £525 - 151
East London +14 90 £550 +7.58% 52
North London +2 7 £500 -9.09% 10
TDD
England

For the 6 months to 19 August 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 2,525 (74.57%) Agile Software Development
2 1,363 (40.25%) Java
3 1,321 (39.01%) BDD
4 1,261 (37.24%) JavaScript
5 873 (25.78%) Microservices
6 788 (23.27%) Scrum
7 774 (22.86%) Amazon AWS
8 749 (22.12%) C#
9 726 (21.44%) Continuous Integration
10 724 (21.38%) React
11 717 (21.18%) HTML
12 708 (20.91%) AngularJS
13 706 (20.85%) Finance
14 673 (19.88%) Git (software)
15 662 (19.55%) CSS
16 657 (19.40%) DevOps
17 652 (19.26%) .NET
18 601 (17.75%) SQL
19 580 (17.13%) Docker
20 574 (16.95%) Test Automation
21 553 (16.33%) Jenkins
22 549 (16.21%) Microsoft Azure
23 543 (16.04%) Node.js
24 539 (15.92%) Python
25 532 (15.71%) REST
26 527 (15.56%) RESTful
27 500 (14.77%) Spring
28 451 (13.32%) Java 8
29 447 (13.20%) Pair Programming
30 421 (12.43%) Front End 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
1 199 (5.88%) Elasticsearch
2 111 (3.28%) Apache
2 111 (3.28%) Confluence
3 110 (3.25%) Apache Spark
4 53 (1.57%) Apache Solr
5 44 (1.30%) Tomcat
6 32 (0.95%) CMS
7 23 (0.68%) JBoss
8 19 (0.56%) SharePoint
9 18 (0.53%) WebSphere
10 16 (0.47%) Jetty
10 16 (0.47%) Magnolia
10 16 (0.47%) WordPress
11 14 (0.41%) IIS
12 12 (0.35%) Cloud Foundry
12 12 (0.35%) Drupal
13 11 (0.32%) Adobe Experience Manager
14 10 (0.30%) Apache Airflow
14 10 (0.30%) OpenStack
15 9 (0.27%) Oracle SOA Suite
Applications
1 22 (0.65%) Microsoft Excel
2 7 (0.21%) Chatbot
2 7 (0.21%) Photoshop
3 6 (0.18%) Adobe Illustrator
4 2 (0.059%) Adobe Premiere
5 1 (0.030%) GIMP
5 1 (0.030%) Microsoft Office
5 1 (0.030%) SPSS
5 1 (0.030%) Zeplin
Business Applications
1 11 (0.32%) Dynamics CRM
2 8 (0.24%) BusinessWorks
3 7 (0.21%) Magento
4 5 (0.15%) Payment Gateway
4 5 (0.15%) Remedy ITSM
5 4 (0.12%) Summit
6 3 (0.089%) Distributed Ledger
6 3 (0.089%) Salesforce.com CRM
7 2 (0.059%) Oracle BPM
7 2 (0.059%) Oracle Cash Management
7 2 (0.059%) SAP Hybris
8 1 (0.030%) Actimize
8 1 (0.030%) Fredhopper
8 1 (0.030%) R3 Corda
8 1 (0.030%) Sparx Enterprise Architect
Cloud Services
1 774 (22.86%) Amazon AWS
2 549 (16.21%) Microsoft Azure
3 148 (4.37%) Serverless
4 129 (3.81%) Google Cloud Platform
5 93 (2.75%) AWS Lambda
6 92 (2.72%) Amazon EC2
7 91 (2.69%) GitHub
8 77 (2.27%) Amazon SQS
9 70 (2.07%) Amazon S3
10 57 (1.68%) SaaS
11 46 (1.36%) npm
12 43 (1.27%) PaaS
13 41 (1.21%) Amazon ECS
13 41 (1.21%) AWS CloudFormation
14 40 (1.18%) Amazon CloudWatch
15 27 (0.80%) IaaS
15 27 (0.80%) Virtual Private Cloud
16 25 (0.74%) Amazon Kinesis
17 24 (0.71%) Power Platform
18 23 (0.68%) OpenShift
Communications & Networking
1 88 (2.60%) HTTP
2 32 (0.95%) Internet
3 29 (0.86%) TCP/IP
4 21 (0.62%) AMQP
5 16 (0.47%) DNS
6 12 (0.35%) SSL
7 10 (0.30%) Firewall
8 9 (0.27%) FTP
9 4 (0.12%) RTMP
9 4 (0.12%) Skype
9 4 (0.12%) SSH
10 3 (0.089%) Bluetooth
10 3 (0.089%) Intranet
10 3 (0.089%) Network Security
10 3 (0.089%) NFC
10 3 (0.089%) OpenLDAP
10 3 (0.089%) PuTTY
11 2 (0.059%) DHCP
11 2 (0.059%) HTTPS
11 2 (0.059%) Kerberos
Database & Business Intelligence
1 305 (9.01%) NoSQL
2 271 (8.00%) SQL Server
3 257 (7.59%) MongoDB
4 245 (7.24%) PostgreSQL
5 179 (5.29%) Relational Database
6 167 (4.93%) MySQL
7 147 (4.34%) Big Data
8 117 (3.46%) Redis
9 99 (2.92%) Hadoop
10 80 (2.36%) Apache Cassandra
11 69 (2.04%) Amazon DynamoDB
12 56 (1.65%) HBase
13 55 (1.62%) Azure SQL Database
14 51 (1.51%) Cosmos DB
15 44 (1.30%) Amazon RDS
16 38 (1.12%) RDBMS
17 35 (1.03%) Couchbase
17 35 (1.03%) Data Lake
18 33 (0.97%) Data Warehouse
19 24 (0.71%) Power BI
Development Applications
1 673 (19.88%) Git (software)
2 553 (16.33%) Jenkins
3 214 (6.32%) JIRA
4 205 (6.05%) Selenium
5 194 (5.73%) Maven
6 184 (5.43%) TeamCity
7 176 (5.20%) JUnit
8 155 (4.58%) Cucumber
9 140 (4.13%) Mockito
10 111 (3.28%) webpack
11 83 (2.45%) Gradle
12 81 (2.39%) Jasmine
13 80 (2.36%) Octopus Deploy
14 79 (2.33%) NUnit
15 78 (2.30%) gulp
16 76 (2.24%) Visual Studio
17 72 (2.13%) Subversion
18 66 (1.95%) SonarQube
19 57 (1.68%) Mocha
19 57 (1.68%) Visual Studio Team System
General
1 706 (20.85%) Finance
2 411 (12.14%) Banking
3 171 (5.05%) Front Office
4 137 (4.05%) Investment Banking
5 130 (3.84%) Public Sector
6 118 (3.48%) Retail
7 81 (2.39%) Marketing
8 74 (2.19%) Games
9 47 (1.39%) Financial Institution
10 32 (0.95%) Retail Banking
11 28 (0.83%) Publishing
11 28 (0.83%) Telecoms
12 24 (0.71%) Advertising
13 21 (0.62%) Manufacturing
14 18 (0.53%) Legal
15 17 (0.50%) Electronics
16 12 (0.35%) Law
17 9 (0.27%) Back Office
18 6 (0.18%) Online Betting
19 5 (0.15%) Military
Job Titles
1 2,655 (78.41%) Developer
2 776 (22.92%) Java Developer
3 461 (13.61%) React Developer
4 423 (12.49%) Senior Developer
5 350 (10.34%) .NET Developer
6 307 (9.07%) Full Stack Developer
7 276 (8.15%) Front End Developer (Client-Side Developer)
8 275 (8.12%) C# Developer
9 232 (6.85%) JavaScript Developer
10 188 (5.55%) Python Developer
11 166 (4.90%) Angular Developer
12 156 (4.61%) Senior Java Developer
13 129 (3.81%) Scala Developer
14 127 (3.75%) C# .NET Developer
15 123 (3.63%) AWS Developer
16 107 (3.16%) Architect
17 96 (2.84%) Agile Developer
17 96 (2.84%) Node.js Developer
18 94 (2.78%) Lead Developer
19 89 (2.63%) Ruby Developer
Libraries, Frameworks & Software Standards
1 724 (21.38%) React
2 717 (21.18%) HTML
3 708 (20.91%) AngularJS
4 662 (19.55%) CSS
5 652 (19.26%) .NET
6 543 (16.04%) Node.js
7 532 (15.71%) REST
8 527 (15.56%) RESTful
9 500 (14.77%) Spring
10 378 (11.16%) Redux
11 374 (11.05%) Web Services
12 360 (10.63%) HTML5
13 317 (9.36%) Kafka
14 275 (8.12%) Spring Boot
15 226 (6.67%) .NET Core
16 223 (6.59%) ASP.NET
17 216 (6.38%) JSON
18 211 (6.23%) ASP.NET Web API
19 210 (6.20%) CSS3
20 205 (6.05%) SOAP
Miscellaneous
1 415 (12.26%) Greenfield Project
2 236 (6.97%) User Experience
3 143 (4.22%) Analytical Skills
4 109 (3.22%) Mobile App
5 102 (3.01%) Algorithms
6 100 (2.95%) Derivative
7 86 (2.54%) Data Protection Act
7 86 (2.54%) Data Structures
8 68 (2.01%) Hedge funds
9 64 (1.89%) Enterprise Software
10 62 (1.83%) Foreign Exchange (FX)
11 60 (1.77%) Equities
12 59 (1.74%) Virtual Team
13 48 (1.42%) Equity Derivative
14 46 (1.36%) Video on Demand
15 45 (1.33%) Video\Live Streaming
16 44 (1.30%) Fixed Income
17 37 (1.09%) Animation
18 29 (0.86%) Linux Command Line
19 27 (0.80%) Self-Motivation
Operating Systems
1 407 (12.02%) Linux
2 192 (5.67%) Unix
3 114 (3.37%) Apple iOS
4 96 (2.84%) Android
5 74 (2.19%) Mac OS X
6 68 (2.01%) Windows
7 28 (0.83%) tvOS
8 22 (0.65%) Ubuntu
9 18 (0.53%) Mac OS
10 15 (0.44%) Red Hat Enterprise Linux
11 9 (0.27%) CentOS
11 9 (0.27%) VMS
12 8 (0.24%) Windows Server
13 4 (0.12%) Debian
14 3 (0.089%) Solaris
15 2 (0.059%) AIX
16 1 (0.030%) Embedded Linux
Processes & Methodologies
1 2,525 (74.57%) Agile Software Development
2 1,321 (39.01%) BDD
3 873 (25.78%) Microservices
4 788 (23.27%) Scrum
5 726 (21.44%) Continuous Integration
6 657 (19.40%) DevOps
7 574 (16.95%) Test Automation
8 447 (13.20%) Pair Programming
9 421 (12.43%) Front End Development
10 353 (10.43%) OO
11 340 (10.04%) Kanban
12 328 (9.69%) Software Engineering
13 327 (9.66%) Unit Testing
14 326 (9.63%) MVC
15 299 (8.83%) Continuous Delivery
16 290 (8.56%) E-Commerce
17 248 (7.32%) Fintech
18 240 (7.09%) Web Development
19 226 (6.67%) SDLC
20 218 (6.44%) SOLID
Programming Languages
1 1,363 (40.25%) Java
2 1,261 (37.24%) JavaScript
3 749 (22.12%) C#
4 601 (17.75%) SQL
5 539 (15.92%) Python
6 451 (13.32%) Java 8
7 302 (8.92%) Scala
8 253 (7.47%) TypeScript
9 238 (7.03%) Ruby
10 207 (6.11%) ES6
11 101 (2.98%) Kotlin
12 86 (2.54%) PHP
13 78 (2.30%) Bash Shell
14 68 (2.01%) C++
15 66 (1.95%) Go
16 63 (1.86%) Apple Swift
17 62 (1.83%) PowerShell
18 51 (1.51%) Shell Script
19 48 (1.42%) Perl
20 38 (1.12%) Groovy
Qualifications
1 170 (5.02%) Security Cleared
2 160 (4.73%) Degree
3 136 (4.02%) SC Cleared
4 37 (1.09%) BPSS Clearance
5 26 (0.77%) Computer Science Degree
6 25 (0.74%) CTC Cleared
7 20 (0.59%) ISTQB
8 19 (0.56%) DBS Check
9 9 (0.27%) DV Cleared
10 7 (0.21%) ISEB
10 7 (0.21%) Master's Degree
11 4 (0.12%) ISTQB Foundation Certification
12 3 (0.089%) AWS Certification
13 2 (0.059%) ISTQB Advanced Certification
13 2 (0.059%) TOGAF Certification
14 1 (0.030%) BC Cleared
14 1 (0.030%) Microsoft Certification
14 1 (0.030%) Numerate Degree
14 1 (0.030%) Sun Certification
Quality Assurance & Compliance
1 186 (5.49%) QA
2 26 (0.77%) Data Quality
3 10 (0.30%) MiFID
3 10 (0.30%) WCAG
4 8 (0.24%) Disclosure Scotland
4 8 (0.24%) PCI DSS
5 5 (0.15%) EMIR
6 4 (0.12%) PSD2
7 3 (0.089%) ISO/IEC 27001
8 2 (0.059%) Dodd-Frank
8 2 (0.059%) GDPR
8 2 (0.059%) IFRS
9 1 (0.030%) HL7
9 1 (0.030%) WAI
System Software
1 580 (17.13%) Docker
2 27 (0.80%) Active Directory
3 25 (0.74%) VMware Infrastructure
4 23 (0.68%) vSphere
5 21 (0.62%) HDFS
6 7 (0.21%) Apache Flume
7 5 (0.15%) Apache ZooKeeper
7 5 (0.15%) Varnish
7 5 (0.15%) Virtual Servers
8 4 (0.12%) Virtual Machines
9 3 (0.089%) Microsoft App-V
10 2 (0.059%) Tivoli Workload Scheduler
10 2 (0.059%) Xen
11 1 (0.030%) Postfix
Systems Management
1 351 (10.37%) Kubernetes
2 120 (3.54%) Terraform
3 114 (3.37%) Ansible
4 42 (1.24%) Puppet
5 26 (0.77%) Opscode Chef
6 21 (0.62%) Hadoop YARN
7 18 (0.53%) Control-M
7 18 (0.53%) Mesos
8 16 (0.47%) Marathon
9 15 (0.44%) Kibana
10 14 (0.41%) logstash
11 12 (0.35%) ITRS Geneos
12 10 (0.30%) Grafana
12 10 (0.30%) ZABBIX
13 9 (0.27%) Prometheus
14 8 (0.24%) Nagios
15 7 (0.21%) Docker Swarm
15 7 (0.21%) Oozie
16 5 (0.15%) Cobbler
16 5 (0.15%) Salt
Vendors
1 200 (5.91%) Microsoft
2 153 (4.52%) Google
3 125 (3.69%) Oracle
4 56 (1.65%) Atlassian
5 38 (1.12%) Salesforce.com
6 34 (1.00%) Apple
7 33 (0.97%) Splunk
7 33 (0.97%) VMware
8 30 (0.89%) SAP
9 29 (0.86%) Cadence
10 27 (0.80%) MuleSoft
11 22 (0.65%) Tableau
12 21 (0.62%) BMC
13 17 (0.50%) Adobe
13 17 (0.50%) Alteryx
14 16 (0.47%) IBM
15 15 (0.44%) Cognos
16 14 (0.41%) Sybase
16 14 (0.41%) TIBCO
17 13 (0.38%) Red Hat