Period
to 17 November 2018

The following table provides summary statistics for contract job vacancies advertised in Central 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 November 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)
London > Central London
6 months to
17 Nov 2018
Same period 2017 Same period 2016
Rank 9 11 12
Rank change year-on-year +2 +1 +4
Contract jobs citing TDD 1,121 867 853
As % of all contract IT jobs advertised in Central London 12.31% 10.21% 10.47%
As % of the Processes & Methodologies category 14.04% 11.48% 11.84%
Number of daily rates quoted 984 743 771
Central London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% -
10th Percentile £424 £411 £364
90th Percentile £650 £650 £650
London median daily rate £525 £513 £488
% change year-on-year +2.44% +5.13% +2.63%
Number of hourly rates quoted 0 0 0
Central London median hourly rate - - -
London median hourly rate £27.25 £32.50 £46.25
% change year-on-year -16.15% -29.73% +2.78%

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 Central London with a requirement for process or methodology skills.

All Process and Methodology Skills
Central London
Contract vacancies with a requirement for process or methodology skills 7,983 7,553 7,205
As % of all contract IT jobs advertised in Central London 87.68% 88.93% 88.43%
Number of daily rates quoted 6,203 5,868 5,624
Central London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% +5.56%
10th Percentile £325 £325 £313
90th Percentile £675 £675 £650
London median daily rate £500 £500 £475
% change year-on-year - +5.26% +5.56%
Number of hourly rates quoted 105 78 64
Central London median hourly rate £19.00 £20.00 £19.00
Median hourly rate % change year-on-year -5.00% +5.26% -2.56%
10th Percentile £13.31 £13.34 £11.25
90th Percentile £33.45 £34.55 £53.54
London median hourly rate £23.13 £22.50 £21.78
% change year-on-year +2.80% +3.31% +8.90%

TDD
Job Vacancy Trend in Central London

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

Job vacancy trend for TDD in Central London

TDD
Contractor Daily Rate Trend in Central London

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

Contractor daily rate trend for TDD in Central London

TDD
Contractor Daily Rate Histogram in Central London

The daily rate distribution of IT jobs citing TDD in Central London over the 6 months to 17 November 2018.

Contractor daily rate histogram for TDD in Central London

TDD
Contractor Hourly Rate Trend in Central London

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

Contractor hourly rate trend for TDD in Central London

TDD
Contract Job Locations in Central 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 Central London region over the 6 months to 17 November 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
City of London 0 865 £538 +2.38% 305
Southwark +6 80 £575 +4.55%
West End of London +1 63 £550 +22.22% 51
City of Westminster +17 33 £550 +29.41% 2
Camden -4 10 £475 +5.56%
TDD
London

For the 6 months to 17 November 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 Central London region with a requirement for TDD.

1 803 (71.63%) Agile Software Development
2 473 (42.19%) Java
3 426 (38.00%) BDD
4 397 (35.41%) JavaScript
5 349 (31.13%) Microservices
6 294 (26.23%) Amazon AWS
7 267 (23.82%) Finance
8 255 (22.75%) HTML
9 233 (20.79%) Git (software)
10 232 (20.70%) C#
11 228 (20.34%) CSS
12 226 (20.16%) Microsoft Azure
13 219 (19.54%) Continuous Integration
14 215 (19.18%) .NET
15 212 (18.91%) Docker
15 212 (18.91%) AngularJS
16 211 (18.82%) Scrum
17 209 (18.64%) DevOps
18 207 (18.47%) Spring
19 202 (18.02%) REST
20 197 (17.57%) OO
21 196 (17.48%) React
22 192 (17.13%) Java 8
23 186 (16.59%) Greenfield Project
24 171 (15.25%) RESTful
25 170 (15.17%) Node.js
26 168 (14.99%) SQL
27 164 (14.63%) Test Automation
28 161 (14.36%) NoSQL
29 143 (12.76%) Software Engineering

TDD
Co-occurring IT Skills in Central 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 56 (5.00%) Tomcat
2 55 (4.91%) Elasticsearch
3 53 (4.73%) WebLogic
4 46 (4.10%) WebSphere
5 44 (3.93%) OpenStack
6 32 (2.85%) CMS
7 29 (2.59%) Confluence
8 27 (2.41%) Apache
8 27 (2.41%) Apache Spark
9 17 (1.52%) Cloud Foundry
9 17 (1.52%) NServiceBus
10 13 (1.16%) JBoss
11 6 (0.54%) SharePoint
12 5 (0.45%) MQSeries
12 5 (0.45%) Mule
12 5 (0.45%) Umbraco
13 4 (0.36%) IIS
13 4 (0.36%) WordPress
14 3 (0.27%) Gunicorn
14 3 (0.27%) Oracle SOA Suite
Applications
1 8 (0.71%) Microsoft Excel
2 2 (0.18%) Adobe Illustrator
2 2 (0.18%) InVision
2 2 (0.18%) Snapchat
Business Applications
1 2 (0.18%) Distributed Ledger
1 2 (0.18%) Payment Gateway
2 1 (0.089%) Dynamics CRM
2 1 (0.089%) SAP Hybris
2 1 (0.089%) SDL Web 8
2 1 (0.089%) Summit
Cloud Services
1 294 (26.23%) Amazon AWS
2 226 (20.16%) Microsoft Azure
3 53 (4.73%) GitHub
4 43 (3.84%) Google Cloud Platform
5 36 (3.21%) Serverless
6 34 (3.03%) Heroku
7 26 (2.32%) npm
8 22 (1.96%) Amazon SQS
8 22 (1.96%) AWS Lambda
9 20 (1.78%) Cloud Computing
10 16 (1.43%) PaaS
11 13 (1.16%) Amazon EC2
12 8 (0.71%) Amazon S3
12 8 (0.71%) IBM Cloud
13 6 (0.54%) Datadog
13 6 (0.54%) IaaS
14 4 (0.36%) Amazon Kinesis
14 4 (0.36%) OpenShift
14 4 (0.36%) SaaS
15 3 (0.27%) Apigee
Communications & Networking
1 40 (3.57%) HTTP
2 18 (1.61%) TCP/IP
3 13 (1.16%) DNS
4 12 (1.07%) FTP
5 11 (0.98%) SSL
6 8 (0.71%) Internet
7 3 (0.27%) AMQP
7 3 (0.27%) Firewall
8 2 (0.18%) DMARC
8 2 (0.18%) HTTPS
8 2 (0.18%) SMS
9 1 (0.089%) LAN
9 1 (0.089%) Skype
9 1 (0.089%) SMTP
9 1 (0.089%) SSH
9 1 (0.089%) VPN
Database & Business Intelligence
1 161 (14.36%) NoSQL
2 108 (9.63%) SQL Server
3 107 (9.55%) MySQL
4 87 (7.76%) PostgreSQL
5 82 (7.31%) MongoDB
6 55 (4.91%) Relational Database
7 54 (4.82%) Redis
8 49 (4.37%) Apache Cassandra
9 37 (3.30%) Cosmos DB
10 25 (2.23%) Azure SQL Database
10 25 (2.23%) Hadoop
10 25 (2.23%) SQL Server 2012
11 24 (2.14%) Big Data
11 24 (2.14%) Riak
12 23 (2.05%) Amazon DynamoDB
13 18 (1.61%) SQL Server 2016
14 15 (1.34%) Data Lake
14 15 (1.34%) Neo4j
15 14 (1.25%) SQL Server 2014
16 13 (1.16%) Impala
Development Applications
1 233 (20.79%) Git (software)
2 135 (12.04%) Jenkins
3 120 (10.70%) Maven
4 94 (8.39%) Selenium
5 75 (6.69%) NUnit
6 72 (6.42%) Cucumber
7 70 (6.24%) JIRA
8 61 (5.44%) JUnit
9 52 (4.64%) MSTest
10 49 (4.37%) Mockito
11 48 (4.28%) SpecFlow
12 47 (4.19%) webpack
13 40 (3.57%) gulp
14 37 (3.30%) GitLab
15 36 (3.21%) Gradle
16 32 (2.85%) Octopus Deploy
16 32 (2.85%) Team Foundation Server
17 31 (2.77%) Jasmine
17 31 (2.77%) Visual Studio Team System
18 30 (2.68%) WebDriver
General
1 267 (23.82%) Finance
2 117 (10.44%) Banking
3 35 (3.12%) Front Office
4 32 (2.85%) Investment Banking
5 28 (2.50%) Publishing
6 25 (2.23%) Financial Institution
6 25 (2.23%) Law
7 24 (2.14%) Games
8 22 (1.96%) Retail
9 11 (0.98%) Back Office
10 9 (0.80%) Advertising
11 8 (0.71%) Pharmaceutical
12 6 (0.54%) Marketing
13 5 (0.45%) Automotive
13 5 (0.45%) Billing
14 4 (0.36%) Telecoms
15 3 (0.27%) Multimedia
16 2 (0.18%) Legal
16 2 (0.18%) Prime Brokerage
17 1 (0.089%) Retail Banking
Job Titles
1 859 (76.63%) Developer
2 331 (29.53%) Java Developer
3 191 (17.04%) Senior Developer
4 101 (9.01%) Front End Developer (Client-Side Developer)
5 95 (8.47%) .NET Developer
6 85 (7.58%) C# Developer
7 83 (7.40%) Senior Java Developer
8 78 (6.96%) React Developer
9 74 (6.60%) JavaScript Developer
10 73 (6.51%) AWS Developer
11 53 (4.73%) Angular Developer
12 52 (4.64%) Full Stack Developer
13 41 (3.66%) Software Engineer
14 33 (2.94%) Lead Developer
15 32 (2.85%) Agile Developer
16 31 (2.77%) Agile Java Developer
16 31 (2.77%) Azure Developer
17 30 (2.68%) C# .NET Developer
18 29 (2.59%) Node.js Developer
18 29 (2.59%) PHP Developer
Libraries, Frameworks & Software Standards
1 255 (22.75%) HTML
2 228 (20.34%) CSS
3 215 (19.18%) .NET
4 212 (18.91%) AngularJS
5 207 (18.47%) Spring
6 202 (18.02%) REST
7 196 (17.48%) React
8 171 (15.25%) RESTful
9 170 (15.17%) Node.js
10 135 (12.04%) Spring Boot
11 130 (11.60%) HTML5
12 101 (9.01%) Web Services
13 87 (7.76%) JSON
14 80 (7.14%) Hibernate
15 78 (6.96%) CSS3
16 71 (6.33%) Sass
17 68 (6.07%) Redux
18 67 (5.98%) .NET Core
19 61 (5.44%) ASP.NET Web API
20 58 (5.17%) Kafka
Miscellaneous
1 186 (16.59%) Greenfield Project
2 81 (7.23%) User Experience
3 80 (7.14%) Fintech
4 70 (6.24%) Computer Science
5 54 (4.82%) Mobile App
6 36 (3.21%) Data Structures
7 33 (2.94%) Algorithms
8 28 (2.50%) Fixed Income
8 28 (2.50%) Foreign Exchange (FX)
9 27 (2.41%) Derivative
10 26 (2.32%) Analytical Skills
11 21 (1.87%) Equities
12 20 (1.78%) iPad
13 11 (0.98%) Self-Motivation
14 10 (0.89%) Enterprise Software
15 8 (0.71%) Equity Derivative
15 8 (0.71%) Virtual Team
16 7 (0.62%) Credit Risk
16 7 (0.62%) Video on Demand
16 7 (0.62%) Video\Live Streaming
Operating Systems
1 93 (8.30%) Linux
2 45 (4.01%) Android
3 42 (3.75%) Unix
4 37 (3.30%) Apple iOS
5 27 (2.41%) Windows
6 10 (0.89%) Mac OS X
7 9 (0.80%) Windows Server
8 3 (0.27%) VMS
9 1 (0.089%) CentOS
9 1 (0.089%) CoreOS
9 1 (0.089%) Mac OS
9 1 (0.089%) tvOS
9 1 (0.089%) Windows 7
9 1 (0.089%) Windows Mobile
9 1 (0.089%) Windows Server 2012
Processes & Methodologies
1 803 (71.63%) Agile Software Development
2 426 (38.00%) BDD
3 349 (31.13%) Microservices
4 219 (19.54%) Continuous Integration
5 211 (18.82%) Scrum
6 209 (18.64%) DevOps
7 197 (17.57%) OO
8 164 (14.63%) Test Automation
9 143 (12.76%) Software Engineering
10 142 (12.67%) Front End Development
11 121 (10.79%) MVC
12 107 (9.55%) Kanban
13 104 (9.28%) E-Commerce
14 101 (9.01%) Unit Testing
15 99 (8.83%) Pair Programming
16 85 (7.58%) Continuous Delivery
17 82 (7.31%) Multithreading
18 62 (5.53%) OOP
19 59 (5.26%) Open Source
20 56 (5.00%) Problem-Solving
Programming Languages
1 473 (42.19%) Java
2 397 (35.41%) JavaScript
3 232 (20.70%) C#
4 192 (17.13%) Java 8
5 168 (14.99%) SQL
6 112 (9.99%) Python
7 81 (7.23%) TypeScript
8 65 (5.80%) Ruby
9 59 (5.26%) Scala
10 57 (5.08%) Kotlin
11 48 (4.28%) PHP
12 44 (3.93%) ES6
13 37 (3.30%) Go
14 29 (2.59%) Bash Shell
15 28 (2.50%) C
16 23 (2.05%) T-SQL
17 22 (1.96%) Groovy
18 19 (1.69%) PowerShell
19 17 (1.52%) PHP 7
20 13 (1.16%) Apple Swift
Qualifications
1 88 (7.85%) Degree
2 26 (2.32%) Computer Science Degree
3 11 (0.98%) SC Cleared
3 11 (0.98%) Security Cleared
4 5 (0.45%) Numerate Degree
5 2 (0.18%) ISTQB
6 1 (0.089%) AWS Certification
6 1 (0.089%) BPSS Clearance
6 1 (0.089%) DBS Check
6 1 (0.089%) ISEB
6 1 (0.089%) Master's Degree
Quality Assurance & Compliance
1 71 (6.33%) QA
2 3 (0.27%) Disclosure Scotland
3 2 (0.18%) Data Quality
3 2 (0.18%) GDPR
3 2 (0.18%) PSD2
4 1 (0.089%) PCI DSS
4 1 (0.089%) SLA
4 1 (0.089%) WCAG
System Software
1 212 (18.91%) Docker
2 8 (0.71%) HDFS
3 7 (0.62%) VMware Infrastructure
4 6 (0.54%) vSphere
5 2 (0.18%) Active Directory
5 2 (0.18%) Virtual Machines
6 1 (0.089%) Platform Symphony
Systems Management
1 117 (10.44%) Kubernetes
2 80 (7.14%) Ansible
3 70 (6.24%) Puppet
4 61 (5.44%) Opscode Chef
5 47 (4.19%) Terraform
6 14 (1.25%) Consul
7 13 (1.16%) Kibana
8 12 (1.07%) Mesos
9 11 (0.98%) logstash
10 9 (0.80%) Docker Swarm
11 7 (0.62%) Grafana
11 7 (0.62%) Hadoop YARN
12 5 (0.45%) systemd
13 4 (0.36%) Graphite
13 4 (0.36%) Single Sign-On
13 4 (0.36%) ZABBIX
14 2 (0.18%) Business Desktop Deployment
14 2 (0.18%) HP ALM
14 2 (0.18%) Nagios
14 2 (0.18%) Prometheus
Vendors
1 77 (6.87%) Oracle
2 59 (5.26%) Microsoft
3 31 (2.77%) Google
4 19 (1.69%) Sybase
5 18 (1.61%) Atlassian
5 18 (1.61%) Salesforce.com
6 11 (0.98%) Cadence
7 10 (0.89%) IBM
8 9 (0.80%) Apple
8 9 (0.80%) Splunk
8 9 (0.80%) TIBCO
9 7 (0.62%) Cloudera
9 7 (0.62%) Progress
9 7 (0.62%) VMware
10 6 (0.54%) Escenic
11 5 (0.45%) Citrix
11 5 (0.45%) ServiceNow
11 5 (0.45%) Xamarin
12 4 (0.36%) AppDynamics
12 4 (0.36%) SaltStack