Period
to 21 August 2018

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 21 August 2018 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
21 Aug 2018
Same period 2017 Same period 2016
Rank 11 11 17
Rank change year-on-year 0 +6 +5
Contract jobs citing TDD 4,626 4,149 3,707
As % of all contract IT jobs advertised in London 10.17% 9.69% 8.21%
As % of the Processes & Methodologies category 11.60% 11.05% 9.44%
Number of daily rates quoted 3,778 3,416 3,129
London median daily rate £525 £500 £488
Median daily rate % change year-on-year +5.00% +2.56% +8.33%
10th Percentile £413 £375 £363
90th Percentile £663 £638 £638
England median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 4 3 1
London median hourly rate £34.75 £32.50 £55.00
Median hourly rate % change year-on-year +6.92% -40.91% +22.22%
10th Percentile £16.45 £31.25 £52.50
90th Percentile £65.42 £37.75 £57.50
England median hourly rate £45.00 £41.50 £40.00
% change year-on-year +8.43% +3.75% -5.88%

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 39,888 37,554 39,269
As % of all contract IT jobs advertised in London 87.71% 87.67% 86.94%
Number of daily rates quoted 28,833 26,846 28,461
London median daily rate £500 £500 £463
Median daily rate % change year-on-year - +8.11% +2.78%
10th Percentile £325 £313 £300
90th Percentile £675 £656 £638
England median daily rate £463 £450 £425
% change year-on-year +2.78% +5.88% +3.66%
Number of hourly rates quoted 519 381 340
London median hourly rate £23.50 £24.00 £21.00
Median hourly rate % change year-on-year -2.08% +14.29% +5.00%
10th Percentile £14.00 £13.24 £11.25
90th Percentile £54.79 £50.00 £55.00
England median hourly rate £21.33 £24.00 £23.50
% change year-on-year -11.15% +2.13% +9.05%

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 21 August 2018.

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 21 August 2018.

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 21 August 2018. 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 -1 970 £525 +2.44% 332
West London +5 240 £525 +10.53% 177
South London -4 240 £525 - 19
East London -4 64 £511 +7.63% 58
North London -9 6 £550 +37.50% 5
TDD
England

For the 6 months to 21 August 2018, 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 3,432 (74.19%) Agile Software Development
2 1,937 (41.87%) BDD
3 1,893 (40.92%) Java
4 1,662 (35.93%) JavaScript
5 1,211 (26.18%) Scrum
6 1,092 (23.61%) Continuous Integration
7 1,034 (22.35%) Microservices
8 1,031 (22.29%) Git (software)
9 1,028 (22.22%) C#
10 1,021 (22.07%) .NET
11 991 (21.42%) Amazon AWS
12 983 (21.25%) HTML
13 899 (19.43%) CSS
14 894 (19.33%) Finance
15 888 (19.20%) AngularJS
16 886 (19.15%) REST
17 878 (18.98%) React
18 844 (18.24%) SQL
19 812 (17.55%) Test Automation
20 811 (17.53%) DevOps
21 805 (17.40%) Node.js
22 793 (17.14%) Jenkins
23 772 (16.69%) Microsoft Azure
24 764 (16.52%) Docker
25 757 (16.36%) RESTful
26 729 (15.76%) Spring
27 708 (15.30%) OO
28 654 (14.14%) Web Services
29 635 (13.73%) Java 8
30 624 (13.49%) MVC

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
1 222 (4.80%) Elasticsearch
2 220 (4.76%) Confluence
3 151 (3.26%) Tomcat
4 148 (3.20%) Apache Spark
5 147 (3.18%) Apache
6 115 (2.49%) WebSphere
7 108 (2.33%) NServiceBus
8 100 (2.16%) WebLogic
9 96 (2.08%) OpenStack
10 71 (1.53%) CMS
11 58 (1.25%) Cloud Foundry
12 54 (1.17%) JBoss
13 36 (0.78%) Apache Solr
14 31 (0.67%) IIS
15 27 (0.58%) Jetty
16 21 (0.45%) Mule
17 18 (0.39%) MQSeries
18 17 (0.37%) Sitecore CMS
19 16 (0.35%) Apache Airflow
20 15 (0.32%) Umbraco
Applications
1 34 (0.73%) Photoshop
2 31 (0.67%) Microsoft Excel
3 7 (0.15%) Spreadsheet
4 6 (0.13%) Fireworks
4 6 (0.13%) GIMP
4 6 (0.13%) InVision
5 5 (0.11%) Chatbot
6 3 (0.065%) Adobe Illustrator
7 2 (0.043%) Microsoft Office
7 2 (0.043%) MS Visio
7 2 (0.043%) S-PLUS
8 1 (0.022%) Final Cut Pro
8 1 (0.022%) Microsoft Project
Business Applications
1 17 (0.37%) thinkFolio
2 16 (0.35%) Payment Gateway
3 14 (0.30%) Eagle PACE
3 14 (0.30%) Front Arena
4 13 (0.28%) Dynamics CRM
5 12 (0.26%) Markit EDM
6 6 (0.13%) Bloomberg AIM
7 5 (0.11%) Summit
8 4 (0.086%) Magento
8 4 (0.086%) SDL Web 8
9 3 (0.065%) LatentZero
9 3 (0.065%) SAP Hybris
9 3 (0.065%) SAP Oil and Gas
10 2 (0.043%) Distributed Ledger
10 2 (0.043%) Endur
10 2 (0.043%) Global One
10 2 (0.043%) Oracle Financials
10 2 (0.043%) Oracle Retail
10 2 (0.043%) PeopleSoft Financials
10 2 (0.043%) PolarLake
Cloud Services
1 991 (21.42%) Amazon AWS
2 772 (16.69%) Microsoft Azure
3 174 (3.76%) GitHub
4 133 (2.88%) Serverless
5 120 (2.59%) Google Cloud Platform
6 106 (2.29%) npm
7 88 (1.90%) Cloud Computing
8 73 (1.58%) Amazon EC2
9 65 (1.41%) Heroku
10 54 (1.17%) Amazon S3
11 42 (0.91%) AWS Lambda
12 40 (0.86%) PaaS
13 36 (0.78%) OpenShift
14 31 (0.67%) SaaS
15 29 (0.63%) Amazon SQS
16 28 (0.61%) IaaS
17 27 (0.58%) Azure Functions
18 23 (0.50%) IBM Cloud
19 22 (0.48%) Sauce Labs
20 21 (0.45%) Virtual Private Cloud
Communications & Networking
1 203 (4.39%) HTTP
2 55 (1.19%) TCP/IP
3 45 (0.97%) Internet
4 30 (0.65%) SSL
5 29 (0.63%) DNS
6 28 (0.61%) FTP
7 24 (0.52%) AMQP
8 21 (0.45%) SMS
9 15 (0.32%) HTTPS
10 13 (0.28%) Kerberos
11 12 (0.26%) Firewall
12 11 (0.24%) DMARC
13 8 (0.17%) DKIM
13 8 (0.17%) Network Security
14 7 (0.15%) LAN
15 5 (0.11%) FIX Connectivity
16 4 (0.086%) MQTT
16 4 (0.086%) RTMP
16 4 (0.086%) Wi-Fi
17 3 (0.065%) SSH
Database & Business Intelligence
1 527 (11.39%) NoSQL
2 477 (10.31%) SQL Server
3 331 (7.16%) PostgreSQL
4 305 (6.59%) MongoDB
4 305 (6.59%) MySQL
5 283 (6.12%) Relational Database
6 232 (5.02%) Big Data
7 159 (3.44%) Apache Cassandra
8 149 (3.22%) Hadoop
9 99 (2.14%) Redis
10 87 (1.88%) HBase
11 77 (1.66%) SQL Server 2012
12 65 (1.41%) Azure SQL Database
13 56 (1.21%) SQL Server 2016
14 52 (1.12%) SQL Server 2014
15 50 (1.08%) Neo4j
16 49 (1.06%) Amazon Redshift
17 45 (0.97%) Cosmos DB
18 38 (0.82%) Amazon DynamoDB
19 37 (0.80%) Apache Hive
Development Applications
1 1,031 (22.29%) Git (software)
2 793 (17.14%) Jenkins
3 409 (8.84%) Maven
4 384 (8.30%) JIRA
5 345 (7.46%) Selenium
6 316 (6.83%) Cucumber
7 280 (6.05%) JUnit
8 209 (4.52%) webpack
9 207 (4.47%) NUnit
10 201 (4.35%) Mockito
11 197 (4.26%) TeamCity
12 152 (3.29%) Gradle
13 148 (3.20%) Subversion
14 140 (3.03%) Jasmine
15 128 (2.77%) SpecFlow
16 122 (2.64%) gulp
17 119 (2.57%) Grunt
18 117 (2.53%) WebDriver
19 108 (2.33%) Octopus Deploy
20 101 (2.18%) Team Foundation Server
General
1 894 (19.33%) Finance
2 535 (11.57%) Banking
3 207 (4.47%) Retail
4 196 (4.24%) Front Office
5 164 (3.55%) Investment Banking
6 118 (2.55%) Games
7 90 (1.95%) Telecoms
8 62 (1.34%) Financial Institution
9 58 (1.25%) Law
10 55 (1.19%) Marketing
11 52 (1.12%) Publishing
12 45 (0.97%) Back Office
13 35 (0.76%) Advertising
14 26 (0.56%) Legal
15 20 (0.43%) Automotive
15 20 (0.43%) Retail Banking
16 16 (0.35%) Manufacturing
17 15 (0.32%) Electronics
18 9 (0.19%) Pharmaceutical
19 8 (0.17%) General Ledger
Job Titles
1 3,597 (77.76%) Developer
2 1,076 (23.26%) Java Developer
3 649 (14.03%) Senior Developer
4 522 (11.28%) .NET Developer
5 492 (10.64%) C# Developer
6 428 (9.25%) React Developer
7 359 (7.76%) JavaScript Developer
8 327 (7.07%) Front End Developer (Client-Side Developer)
9 248 (5.36%) Senior Java Developer
10 241 (5.21%) Full Stack Developer
11 224 (4.84%) Agile Developer
12 207 (4.47%) C# .NET Developer
13 187 (4.04%) Angular Developer
14 178 (3.85%) Node.js Developer
15 155 (3.35%) Scala Developer
16 143 (3.09%) AWS Developer
17 131 (2.83%) Python Developer
18 120 (2.59%) Architect
19 117 (2.53%) Lead Developer
20 115 (2.49%) Software Engineer
Libraries, Frameworks & Software Standards
1 1,021 (22.07%) .NET
2 983 (21.25%) HTML
3 899 (19.43%) CSS
4 888 (19.20%) AngularJS
5 886 (19.15%) REST
6 878 (18.98%) React
7 805 (17.40%) Node.js
8 757 (16.36%) RESTful
9 729 (15.76%) Spring
10 654 (14.14%) Web Services
11 576 (12.45%) HTML5
12 378 (8.17%) CSS3
13 370 (8.00%) JSON
14 350 (7.57%) ASP.NET
15 347 (7.50%) Spring Boot
16 341 (7.37%) ASP.NET Web API
17 331 (7.16%) Redux
18 290 (6.27%) Hibernate
19 265 (5.73%) Sass
20 262 (5.66%) SOAP
Miscellaneous
1 559 (12.08%) Greenfield Project
2 347 (7.50%) User Experience
3 284 (6.14%) Fintech
4 275 (5.94%) Mobile App
5 185 (4.00%) Computer Science
6 154 (3.33%) Analytical Skills
7 125 (2.70%) Algorithms
8 122 (2.64%) Derivative
9 119 (2.57%) Fixed Income
10 109 (2.36%) Data Structures
11 108 (2.33%) Foreign Exchange (FX)
12 81 (1.75%) iPad
13 78 (1.69%) Equities
14 71 (1.53%) Enterprise Software
15 55 (1.19%) Video on Demand
16 52 (1.12%) Self-Motivation
17 51 (1.10%) Virtual Team
18 50 (1.08%) Equity Derivative
19 41 (0.89%) Cloud Native
20 40 (0.86%) Over-the-Top Content
Operating Systems
1 405 (8.75%) Linux
2 227 (4.91%) Unix
3 215 (4.65%) Apple iOS
4 210 (4.54%) Android
5 144 (3.11%) Windows
6 37 (0.80%) Mac OS X
7 20 (0.43%) Windows Server
8 16 (0.35%) Mac OS
9 9 (0.19%) CentOS
9 9 (0.19%) Solaris
9 9 (0.19%) VMS
10 8 (0.17%) Windows 7
11 7 (0.15%) Ubuntu
11 7 (0.15%) Windows 8
12 6 (0.13%) Red Hat Enterprise Linux
13 3 (0.065%) CoreOS
13 3 (0.065%) Debian
13 3 (0.065%) HPUX
13 3 (0.065%) Oracle Linux
14 2 (0.043%) Windows Phone
Processes & Methodologies
1 3,432 (74.19%) Agile Software Development
2 1,937 (41.87%) BDD
3 1,211 (26.18%) Scrum
4 1,092 (23.61%) Continuous Integration
5 1,034 (22.35%) Microservices
6 812 (17.55%) Test Automation
7 811 (17.53%) DevOps
8 708 (15.30%) OO
9 624 (13.49%) MVC
10 589 (12.73%) Pair Programming
11 570 (12.32%) Kanban
12 517 (11.18%) Software Engineering
13 513 (11.09%) Unit Testing
14 431 (9.32%) E-Commerce
15 425 (9.19%) Front End Development
16 424 (9.17%) Continuous Delivery
17 375 (8.11%) Multithreading
18 318 (6.87%) SOA
19 309 (6.68%) Problem-Solving
20 291 (6.29%) Web Development
Programming Languages
1 1,893 (40.92%) Java
2 1,662 (35.93%) JavaScript
3 1,028 (22.22%) C#
4 844 (18.24%) SQL
5 635 (13.73%) Java 8
6 474 (10.25%) Python
7 367 (7.93%) Scala
8 276 (5.97%) Ruby
9 272 (5.88%) ES6
10 254 (5.49%) TypeScript
11 154 (3.33%) Groovy
12 133 (2.88%) Apple Swift
13 115 (2.49%) Kotlin
14 110 (2.38%) PHP
15 108 (2.33%) C++
16 99 (2.14%) Bash Shell
16 99 (2.14%) Go
17 90 (1.95%) Objective-C
18 89 (1.92%) T-SQL
19 54 (1.17%) Perl
Qualifications
1 227 (4.91%) Degree
2 208 (4.50%) Security Cleared
3 180 (3.89%) SC Cleared
4 84 (1.82%) Computer Science Degree
5 49 (1.06%) BPSS Clearance
6 18 (0.39%) Master's Degree
7 17 (0.37%) ISEB
8 15 (0.32%) DV Cleared
9 14 (0.30%) ISTQB
10 12 (0.26%) CTC Cleared
11 7 (0.15%) DBS Check
12 5 (0.11%) Numerate Degree
12 5 (0.11%) PMI Certification
12 5 (0.11%) PMP
13 4 (0.086%) ISEB Practitioner
13 4 (0.086%) ISTQB Advanced Certification
14 3 (0.065%) AWS Certification
15 2 (0.043%) OCPJP
15 2 (0.043%) PhD
16 1 (0.022%) CIPD
Quality Assurance & Compliance
1 288 (6.23%) QA
2 51 (1.10%) GCP
3 23 (0.50%) PCI DSS
4 18 (0.39%) Data Quality
5 13 (0.28%) GDPR
6 11 (0.24%) PMO
7 10 (0.22%) EMIR
7 10 (0.22%) MiFID
8 6 (0.13%) PSD2
9 5 (0.11%) Disclosure Scotland
9 5 (0.11%) HMG Security Policy Framework
9 5 (0.11%) SLA
10 3 (0.065%) Dodd-Frank
10 3 (0.065%) ISO/IEC 27001
11 2 (0.043%) ISO 20022
11 2 (0.043%) WAI
11 2 (0.043%) WCAG
12 1 (0.022%) SEPA
12 1 (0.022%) Solvency II
System Software
1 764 (16.52%) Docker
2 32 (0.69%) HDFS
3 19 (0.41%) VMware Infrastructure
3 19 (0.41%) vSphere
4 14 (0.30%) Active Directory
5 6 (0.13%) Apache ZooKeeper
6 4 (0.086%) Platform Symphony
7 2 (0.043%) Apache Flume
7 2 (0.043%) Postfix
7 2 (0.043%) Virtual Machines
8 1 (0.022%) Ceph
8 1 (0.022%) IAG
8 1 (0.022%) NFS
8 1 (0.022%) OpenAM
8 1 (0.022%) OpenDJ
8 1 (0.022%) OpenIDM
8 1 (0.022%) vCloud
8 1 (0.022%) Veritas Cluster Server
8 1 (0.022%) Virtual Desktop
8 1 (0.022%) Virtual Servers
Systems Management
1 341 (7.37%) Kubernetes
2 245 (5.30%) Ansible
3 204 (4.41%) Puppet
4 165 (3.57%) Terraform
5 155 (3.35%) Opscode Chef
6 73 (1.58%) Mesos
7 30 (0.65%) Kibana
8 28 (0.61%) logstash
9 26 (0.56%) Consul
10 23 (0.50%) Prometheus
11 21 (0.45%) Packer
12 19 (0.41%) Grafana
13 16 (0.35%) Business Desktop Deployment
14 15 (0.32%) Single Sign-On
15 13 (0.28%) Marathon
16 12 (0.26%) Docker Swarm
17 11 (0.24%) Hadoop YARN
18 9 (0.19%) HP Quality Center
19 8 (0.17%) Rancher
20 7 (0.15%) Salt
Vendors
1 257 (5.56%) Microsoft
2 241 (5.21%) Oracle
3 150 (3.24%) Google
4 57 (1.23%) IBM
5 39 (0.84%) Sybase
6 38 (0.82%) Adobe
6 38 (0.82%) Splunk
7 36 (0.78%) Salesforce.com
8 35 (0.76%) MuleSoft
9 33 (0.71%) Atlassian
10 31 (0.67%) Tableau
11 30 (0.65%) Sitecore
12 28 (0.61%) SAP
13 25 (0.54%) Apple
13 25 (0.54%) TIBCO
14 21 (0.45%) Apiary
14 21 (0.45%) AppDynamics
14 21 (0.45%) Cloudera
15 20 (0.43%) VMware
16 17 (0.37%) Red Hat