Period
to 17 July 2019

The following table provides summary statistics for contract job vacancies advertised in the City of 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 17 July 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)
Central London > City of London
6 months to
17 Jul 2019
Same period 2018 Same period 2017
Rank 15 11 10
Rank change year-on-year -4 -1 0
Contract jobs citing TDD 604 754 669
As % of all contract IT jobs advertised in the City of London 9.07% 10.63% 10.36%
As % of the Processes & Methodologies category 10.13% 12.08% 11.68%
Number of daily rates quoted 536 656 584
City of London median daily rate £550 £525 £525
Median daily rate % change year-on-year +4.76% - +5.00%
10th Percentile £444 £413 £375
90th Percentile £688 £700 £650
Central London median daily rate £550 £525 £513
% change year-on-year +4.76% +2.44% +2.50%
Number of hourly rates quoted 1 0 0
City of London median hourly rate £60.00 - -
Central London median hourly rate £60.00 - -

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 the City of London with a requirement for process or methodology skills.

All Process and Methodology Skills
City of London
Contract vacancies with a requirement for process or methodology skills 5,965 6,243 5,729
As % of all contract IT jobs advertised in the City of London 89.62% 88.03% 88.68%
Number of daily rates quoted 4,643 4,939 4,437
City of London median daily rate £525 £513 £500
Median daily rate % change year-on-year +2.44% +2.50% +5.26%
10th Percentile £350 £335 £313
90th Percentile £675 £688 £675
Central London median daily rate £525 £500 £500
% change year-on-year +5.00% +0.10% +7.42%
Number of hourly rates quoted 72 105 55
City of London median hourly rate £21.25 £18.70 £20.00
Median hourly rate % change year-on-year +13.64% -6.50% +0.05%
10th Percentile £11.25 £12.85 £13.05
90th Percentile £56.23 £33.45 £29.77
Central London median hourly rate £21.34 £18.70 £17.85
% change year-on-year +14.12% +4.79% -10.78%

TDD
Job Vacancy Trend in the City of London

Job postings citing TDD as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for TDD in the City of London

TDD
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for TDD in the City of London

TDD
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing TDD in the City of London over the 6 months to 17 July 2019.

Contractor daily rate histogram for TDD in the City of London

TDD
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for TDD in the City of London

TDD
Contract Job Locations in the City of 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 City of London region over the 6 months to 17 July 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
London Bridge -14 26 £525 -4.55%
Moorgate -10 2 £500 +25.00%
TDD
Central London

For the 6 months to 17 July 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 City of London region with a requirement for TDD.

1 372 (61.59%) Agile Software Development
2 269 (44.54%) Java
3 221 (36.59%) BDD
4 206 (34.11%) Microservices
5 182 (30.13%) JavaScript
6 142 (23.51%) Finance
7 128 (21.19%) C#
8 127 (21.03%) Docker
9 123 (20.36%) AngularJS
10 122 (20.20%) Amazon AWS
10 122 (20.20%) SQL
11 113 (18.71%) HTML
12 110 (18.21%) CSS
12 110 (18.21%) Spring
13 109 (18.05%) .NET
13 109 (18.05%) Node.js
13 109 (18.05%) React
14 108 (17.88%) RESTful
15 106 (17.55%) Scrum
16 105 (17.38%) Git (software)
17 101 (16.72%) DevOps
18 100 (16.56%) Microsoft Azure
19 96 (15.89%) Kubernetes
20 85 (14.07%) Greenfield Project
20 85 (14.07%) Java 8
21 80 (13.25%) Continuous Integration
22 75 (12.42%) Kafka
23 71 (11.75%) Python
24 70 (11.59%) Scala
25 68 (11.26%) Redux

TDD
Co-occurring IT Skills in the City of 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 43 (7.12%) Elasticsearch
2 34 (5.63%) Apache Spark
3 21 (3.48%) Confluence
4 11 (1.82%) Apache
4 11 (1.82%) CMS
5 5 (0.83%) JBoss
6 4 (0.66%) Jetty
7 3 (0.50%) Adobe Experience Manager
7 3 (0.50%) EPiServer
7 3 (0.50%) nginx
7 3 (0.50%) SharePoint
7 3 (0.50%) Tomcat
7 3 (0.50%) WebLogic
8 2 (0.33%) Apache Solr
8 2 (0.33%) Drupal
8 2 (0.33%) IIS
8 2 (0.33%) Oracle Self-Service HR
8 2 (0.33%) Sitecore CMS
8 2 (0.33%) WebSphere
8 2 (0.33%) WordPress
Applications
1 3 (0.50%) Chatbot
2 2 (0.33%) Microsoft Excel
3 1 (0.17%) Adobe Illustrator
3 1 (0.17%) Photoshop
3 1 (0.17%) Zeplin
Business Applications
1 4 (0.66%) Remedy ITSM
2 2 (0.33%) Dynamics CRM
Cloud Services
1 122 (20.20%) Amazon AWS
2 100 (16.56%) Microsoft Azure
3 41 (6.79%) Serverless
4 18 (2.98%) Google Cloud Platform
5 16 (2.65%) AWS Lambda
6 14 (2.32%) Amazon SQS
7 11 (1.82%) GitHub
8 6 (0.99%) PaaS
9 5 (0.83%) Cloud Computing
9 5 (0.83%) npm
9 5 (0.83%) SaaS
10 4 (0.66%) Amazon EC2
10 4 (0.66%) Amazon S3
10 4 (0.66%) Google Analytics
11 3 (0.50%) Amazon ECS
11 3 (0.50%) Amazon ElastiCache
11 3 (0.50%) Amazon Kinesis
11 3 (0.50%) CloudFront
11 3 (0.50%) Office 365
12 2 (0.33%) Yammer
Communications & Networking
1 17 (2.81%) HTTP
2 12 (1.99%) TCP/IP
3 11 (1.82%) DNS
3 11 (1.82%) FTP
3 11 (1.82%) SSL
4 3 (0.50%) Internet
5 2 (0.33%) SSH
6 1 (0.17%) AMQP
6 1 (0.17%) Intrusion Detection
6 1 (0.17%) Skype
Database & Business Intelligence
1 48 (7.95%) NoSQL
2 37 (6.13%) Redis
3 36 (5.96%) PostgreSQL
4 35 (5.79%) Relational Database
4 35 (5.79%) SQL Server
5 33 (5.46%) MongoDB
6 29 (4.80%) Cosmos DB
7 27 (4.47%) MySQL
8 24 (3.97%) Apache Cassandra
8 24 (3.97%) Data Lake
8 24 (3.97%) Hadoop
9 22 (3.64%) Azure SQL Database
10 20 (3.31%) Couchbase
11 14 (2.32%) Big Data
11 14 (2.32%) HBase
12 9 (1.49%) Riak
13 7 (1.16%) Amazon DynamoDB
13 7 (1.16%) Impala
14 6 (0.99%) Apache Hive
15 5 (0.83%) SQL Server 2012
Development Applications
1 105 (17.38%) Git (software)
2 62 (10.26%) Jenkins
3 42 (6.95%) JIRA
4 32 (5.30%) Selenium
4 32 (5.30%) TeamCity
4 32 (5.30%) webpack
5 31 (5.13%) Maven
6 26 (4.30%) gulp
7 24 (3.97%) JUnit
8 23 (3.81%) Gradle
9 22 (3.64%) Mocha
10 18 (2.98%) Gatling
11 17 (2.81%) Cucumber
12 16 (2.65%) Travis CI
13 15 (2.48%) Atlassian Bamboo
14 14 (2.32%) SpecFlow
14 14 (2.32%) Team Foundation Server
15 13 (2.15%) Grunt
15 13 (2.15%) Mockito
15 13 (2.15%) WebDriver
General
1 142 (23.51%) Finance
2 52 (8.61%) Banking
3 31 (5.13%) Front Office
4 19 (3.15%) Retail
5 13 (2.15%) Investment Banking
6 11 (1.82%) Games
7 10 (1.66%) Retail Banking
8 9 (1.49%) Back Office
8 9 (1.49%) Marketing
9 5 (0.83%) Financial Institution
10 4 (0.66%) Legal
10 4 (0.66%) Publishing
11 3 (0.50%) Law
12 2 (0.33%) Advertising
13 1 (0.17%) Digital Economy
13 1 (0.17%) German Language
13 1 (0.17%) Prime Brokerage
Job Titles
1 456 (75.50%) Developer
2 173 (28.64%) Java Developer
3 102 (16.89%) Senior Developer
4 62 (10.26%) React Developer
5 43 (7.12%) Front End Developer (Client-Side Developer)
6 37 (6.13%) .NET Developer
7 36 (5.96%) Senior Java Developer
8 33 (5.46%) Full Stack Developer
9 32 (5.30%) C# Developer
10 31 (5.13%) Scala Developer
11 30 (4.97%) Agile Developer
12 27 (4.47%) AWS Developer
13 23 (3.81%) Angular Developer
14 21 (3.48%) JavaScript Developer
15 20 (3.31%) Agile Java Developer
16 19 (3.15%) Ruby Developer
17 18 (2.98%) Lead Developer
18 16 (2.65%) Python Developer
19 15 (2.48%) Architect
20 14 (2.32%) Technical Leader
Libraries, Frameworks & Software Standards
1 123 (20.36%) AngularJS
2 113 (18.71%) HTML
3 110 (18.21%) CSS
3 110 (18.21%) Spring
4 109 (18.05%) .NET
4 109 (18.05%) Node.js
4 109 (18.05%) React
5 108 (17.88%) RESTful
6 75 (12.42%) Kafka
7 68 (11.26%) Redux
8 66 (10.93%) REST
9 52 (8.61%) Spring Boot
10 51 (8.44%) .NET Core
11 46 (7.62%) HTML5
12 35 (5.79%) Sass
13 33 (5.46%) ASP.NET
14 31 (5.13%) Hibernate
14 31 (5.13%) Web Services
15 25 (4.14%) ASP.NET Web API
16 24 (3.97%) Angular 2
Miscellaneous
1 85 (14.07%) Greenfield Project
2 22 (3.64%) User Experience
3 19 (3.15%) Mobile App
4 13 (2.15%) Hedge funds
5 12 (1.99%) Analytical Skills
6 11 (1.82%) Data Protection Act
6 11 (1.82%) Data Structures
6 11 (1.82%) Derivative
6 11 (1.82%) Fixed Income
7 9 (1.49%) Linux Command Line
8 8 (1.32%) Algorithms
9 7 (1.16%) Equity Derivative
9 7 (1.16%) Foreign Exchange (FX)
10 6 (0.99%) Virtual Team
11 5 (0.83%) Equities
12 3 (0.50%) Enterprise Software
12 3 (0.50%) Public Cloud
12 3 (0.50%) Spread Betting
13 2 (0.33%) Cloud Native
13 2 (0.33%) OTC Derivatives
Operating Systems
1 62 (10.26%) Linux
2 25 (4.14%) Unix
3 17 (2.81%) Apple iOS
4 13 (2.15%) Android
5 10 (1.66%) Windows
6 5 (0.83%) Mac OS X
7 4 (0.66%) Windows Server
8 2 (0.33%) CentOS
8 2 (0.33%) Debian
8 2 (0.33%) Mac OS
8 2 (0.33%) Red Hat Enterprise Linux
8 2 (0.33%) Ubuntu
9 1 (0.17%) Solaris
9 1 (0.17%) tvOS
Processes & Methodologies
1 372 (61.59%) Agile Software Development
2 221 (36.59%) BDD
3 206 (34.11%) Microservices
4 106 (17.55%) Scrum
5 101 (16.72%) DevOps
6 80 (13.25%) Continuous Integration
7 66 (10.93%) Fintech
8 64 (10.60%) Front End Development
8 64 (10.60%) Pair Programming
9 61 (10.10%) Test Automation
10 58 (9.60%) Software Engineering
11 51 (8.44%) OO
12 47 (7.78%) Kanban
13 46 (7.62%) Continuous Delivery
14 44 (7.28%) SDLC
15 42 (6.95%) Unit Testing
16 40 (6.62%) E-Commerce
17 38 (6.29%) MVC
17 38 (6.29%) Web Development
18 35 (5.79%) Digital Transformation Programme
Programming Languages
1 269 (44.54%) Java
2 182 (30.13%) JavaScript
3 128 (21.19%) C#
4 122 (20.20%) SQL
5 85 (14.07%) Java 8
6 71 (11.75%) Python
7 70 (11.59%) Scala
8 59 (9.77%) TypeScript
9 40 (6.62%) ES6
10 35 (5.79%) Ruby
11 20 (3.31%) Kotlin
12 16 (2.65%) PHP
13 11 (1.82%) Go
14 7 (1.16%) Bash Shell
14 7 (1.16%) C++
14 7 (1.16%) Perl
14 7 (1.16%) R
14 7 (1.16%) T-SQL
15 6 (0.99%) Clojure
15 6 (0.99%) VBA
Qualifications
1 27 (4.47%) Degree
2 20 (3.31%) Security Cleared
3 16 (2.65%) SC Cleared
4 7 (1.16%) ISTQB
5 4 (0.66%) Computer Science Degree
5 4 (0.66%) Master's Degree
6 2 (0.33%) BPSS Clearance
7 1 (0.17%) AWS Certification
7 1 (0.17%) DV Cleared
7 1 (0.17%) ISEB
7 1 (0.17%) ISTQB Foundation Certification
7 1 (0.17%) Sun Certification
Quality Assurance & Compliance
1 32 (5.30%) QA
2 2 (0.33%) Data Quality
3 1 (0.17%) PCI DSS
3 1 (0.17%) WCAG
System Software
1 127 (21.03%) Docker
2 11 (1.82%) HDFS
3 3 (0.50%) Active Directory
4 2 (0.33%) Varnish
5 1 (0.17%) Apache ZooKeeper
5 1 (0.17%) Virtual Machines
Systems Management
1 96 (15.89%) Kubernetes
2 27 (4.47%) Terraform
3 13 (2.15%) Marathon
3 13 (2.15%) Mesos
4 12 (1.99%) Ansible
4 12 (1.99%) Hadoop YARN
5 11 (1.82%) Docker Swarm
6 7 (1.16%) Puppet
7 5 (0.83%) ITRS Geneos
7 5 (0.83%) Nagios
8 4 (0.66%) Prometheus
8 4 (0.66%) ZABBIX
9 3 (0.50%) Grafana
9 3 (0.50%) Opscode Chef
10 2 (0.33%) Salt
11 1 (0.17%) Cobbler
11 1 (0.17%) Graphite
11 1 (0.17%) HP ALM
11 1 (0.17%) Rancher
11 1 (0.17%) Single Sign-On
Vendors
1 29 (4.80%) Google
2 24 (3.97%) Microsoft
3 19 (3.15%) Atlassian
4 13 (2.15%) Oracle
5 11 (1.82%) Salesforce.com
6 8 (1.32%) Splunk
7 5 (0.83%) Perforce
8 4 (0.66%) Adobe
8 4 (0.66%) BMC
8 4 (0.66%) New Relic
8 4 (0.66%) Remedy
8 4 (0.66%) ServiceNow
8 4 (0.66%) Sybase
8 4 (0.66%) Zend
9 3 (0.50%) Apple
9 3 (0.50%) hybris
9 3 (0.50%) Sitecore
10 2 (0.33%) Hortonworks
10 2 (0.33%) Red Hat
10 2 (0.33%) Xamarin