Period
to 26 September 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 26 September 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
26 Sep 2018
Same period 2017 Same period 2016
Rank 10 10 12
Rank change year-on-year 0 +2 +8
Contract jobs citing TDD 993 819 838
As % of all contract IT jobs advertised in Central London 10.95% 10.17% 10.29%
As % of the Processes & Methodologies category 12.58% 11.45% 11.72%
Number of daily rates quoted 865 693 758
Central London median daily rate £525 £513 £500
Median daily rate % change year-on-year +2.44% +2.50% -
10th Percentile £413 £375 £363
90th Percentile £673 £650 £650
London median daily rate £525 £500 £480
% change year-on-year +5.00% +4.17% +2.40%
Number of hourly rates quoted 0 0 0
Central London median hourly rate - - -
London median hourly rate £19.50 £32.50 £50.00
% change year-on-year -40.00% -35.00% +11.11%

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 7,896 7,154 7,148
As % of all contract IT jobs advertised in Central London 87.07% 88.84% 87.80%
Number of daily rates quoted 6,167 5,492 5,616
Central London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% +5.56%
10th Percentile £325 £313 £313
90th Percentile £675 £675 £650
London median daily rate £500 £500 £463
% change year-on-year - +8.11% +2.78%
Number of hourly rates quoted 113 71 59
Central London median hourly rate £18.70 £18.70 £19.00
Median hourly rate % change year-on-year - -1.58% -7.32%
10th Percentile £13.23 £13.00 £11.25
90th Percentile £33.00 £31.50 £55.37
London median hourly rate £22.46 £23.00 £21.00
% change year-on-year -2.35% +9.52% +5.00%

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 26 September 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 26 September 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 0 779 £525 - 282
West End of London +2 42 £525 +16.67% 64
Southwark -2 29 £575 - 1
City of Westminster +8 19 £525 +16.67% 1
Camden -8 6 £475 +5.56% 1
TDD
London

For the 6 months to 26 September 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.

1 692 (69.69%) Agile Software Development
2 408 (41.09%) BDD
3 369 (37.16%) Java
4 359 (36.15%) JavaScript
5 276 (27.79%) Microservices
6 241 (24.27%) Git (software)
7 234 (23.56%) Amazon AWS
8 233 (23.46%) Finance
9 226 (22.76%) HTML
10 216 (21.75%) .NET
10 216 (21.75%) Docker
11 213 (21.45%) C#
12 207 (20.85%) REST
13 202 (20.34%) CSS
14 200 (20.14%) React
15 192 (19.34%) AngularJS
16 188 (18.93%) Scrum
17 182 (18.33%) DevOps
18 179 (18.03%) Microsoft Azure
19 176 (17.72%) Node.js
20 173 (17.42%) Java 8
21 172 (17.32%) Continuous Integration
22 166 (16.72%) Spring
23 158 (15.91%) SQL
24 157 (15.81%) Greenfield Project
25 151 (15.21%) RESTful
25 151 (15.21%) Test Automation
26 144 (14.50%) Software Engineering
27 141 (14.20%) MVC
28 135 (13.60%) OO

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 43 (4.33%) Elasticsearch
2 38 (3.83%) Apache
3 32 (3.22%) Apache Spark
4 30 (3.02%) Cloud Foundry
5 25 (2.52%) CMS
5 25 (2.52%) Confluence
6 22 (2.22%) NServiceBus
7 16 (1.61%) JBoss
7 16 (1.61%) Tomcat
8 11 (1.11%) WebLogic
9 10 (1.01%) MQSeries
10 6 (0.60%) SharePoint
10 6 (0.60%) Umbraco
11 5 (0.50%) Apache Airflow
11 5 (0.50%) OpenStack
12 4 (0.40%) IIS
12 4 (0.40%) Oracle SOA Suite
12 4 (0.40%) WebSphere
13 3 (0.30%) ArcGIS
13 3 (0.30%) Mule
Applications
1 8 (0.81%) Microsoft Excel
2 2 (0.20%) Snapchat
3 1 (0.10%) Adobe Illustrator
3 1 (0.10%) InVision
Business Applications
1 2 (0.20%) Distributed Ledger
1 2 (0.20%) Dynamics CRM
1 2 (0.20%) Payment Gateway
1 2 (0.20%) SDL Web 8
2 1 (0.10%) Summit
Cloud Services
1 234 (23.56%) Amazon AWS
2 179 (18.03%) Microsoft Azure
3 57 (5.74%) Heroku
4 43 (4.33%) Google Cloud Platform
5 37 (3.73%) npm
6 34 (3.42%) Serverless
7 33 (3.32%) GitHub
8 28 (2.82%) Amazon SQS
9 24 (2.42%) AWS Lambda
10 21 (2.11%) Cloud Computing
11 16 (1.61%) IBM Cloud
12 15 (1.51%) PaaS
13 14 (1.41%) Amazon S3
13 14 (1.41%) IaaS
14 13 (1.31%) Amazon EC2
15 7 (0.70%) Amazon CloudWatch
16 6 (0.60%) Slack
17 5 (0.50%) Amazon Kinesis
18 3 (0.30%) Google App Engine
19 2 (0.20%) Datadog
Communications & Networking
1 42 (4.23%) HTTP
2 31 (3.12%) TCP/IP
3 20 (2.01%) DNS
3 20 (2.01%) FTP
3 20 (2.01%) SSL
4 8 (0.81%) Internet
5 5 (0.50%) SMS
6 2 (0.20%) Firewall
6 2 (0.20%) Skype
7 1 (0.10%) AMQP
7 1 (0.10%) HTTPS
7 1 (0.10%) LAN
7 1 (0.10%) Network Security
7 1 (0.10%) VPN
Database & Business Intelligence
1 132 (13.29%) NoSQL
2 107 (10.78%) SQL Server
3 87 (8.76%) MongoDB
4 66 (6.65%) MySQL
5 56 (5.64%) Relational Database
6 55 (5.54%) PostgreSQL
7 38 (3.83%) Redis
8 36 (3.63%) Apache Cassandra
9 34 (3.42%) Big Data
10 29 (2.92%) Cosmos DB
10 29 (2.92%) Hadoop
11 27 (2.72%) SQL Server 2012
12 23 (2.32%) Amazon DynamoDB
13 20 (2.01%) Azure SQL Database
14 18 (1.81%) SQL Server 2016
15 17 (1.71%) SQL Server 2014
16 13 (1.31%) Couchbase
16 13 (1.31%) Neo4j
17 11 (1.11%) Apache Hive
17 11 (1.11%) Data Lake
Development Applications
1 241 (24.27%) Git (software)
2 110 (11.08%) Jenkins
3 93 (9.37%) Maven
4 74 (7.45%) Selenium
5 61 (6.14%) JUnit
6 56 (5.64%) JIRA
7 55 (5.54%) Cucumber
7 55 (5.54%) Mockito
8 50 (5.04%) webpack
9 43 (4.33%) Gradle
9 43 (4.33%) SpecFlow
10 39 (3.93%) gulp
11 38 (3.83%) GitLab
12 31 (3.12%) Jasmine
13 29 (2.92%) Ant
14 28 (2.82%) NUnit
14 28 (2.82%) TeamCity
15 26 (2.62%) Grunt
16 25 (2.52%) SonarQube
16 25 (2.52%) WebDriver
General
1 233 (23.46%) Finance
2 114 (11.48%) Banking
3 30 (3.02%) Investment Banking
4 29 (2.92%) Games
5 28 (2.82%) Front Office
6 26 (2.62%) Law
6 26 (2.62%) Retail
7 25 (2.52%) Financial Institution
8 18 (1.81%) Publishing
9 12 (1.21%) Advertising
10 11 (1.11%) Back Office
11 9 (0.91%) Marketing
11 9 (0.91%) Pharmaceutical
12 7 (0.70%) Automotive
13 4 (0.40%) Retail Banking
14 3 (0.30%) Multimedia
15 2 (0.20%) Prime Brokerage
15 2 (0.20%) Telecoms
16 1 (0.10%) Billing
16 1 (0.10%) Legal
Job Titles
1 753 (75.83%) Developer
2 237 (23.87%) Java Developer
3 151 (15.21%) Senior Developer
4 104 (10.47%) .NET Developer
5 91 (9.16%) Front End Developer (Client-Side Developer)
6 85 (8.56%) C# Developer
7 71 (7.15%) React Developer
8 65 (6.55%) JavaScript Developer
9 56 (5.64%) Full Stack Developer
10 53 (5.34%) Senior Java Developer
11 41 (4.13%) Angular Developer
12 39 (3.93%) Software Engineer
13 35 (3.52%) Agile Developer
14 34 (3.42%) AWS Developer
15 33 (3.32%) Azure Developer
15 33 (3.32%) C# .NET Developer
15 33 (3.32%) Lead Developer
16 32 (3.22%) Node.js Developer
17 31 (3.12%) PHP Developer
17 31 (3.12%) Python Developer
Libraries, Frameworks & Software Standards
1 226 (22.76%) HTML
2 216 (21.75%) .NET
3 207 (20.85%) REST
4 202 (20.34%) CSS
5 200 (20.14%) React
6 192 (19.34%) AngularJS
7 176 (17.72%) Node.js
8 166 (16.72%) Spring
9 151 (15.21%) RESTful
10 133 (13.39%) HTML5
11 100 (10.07%) Web Services
12 88 (8.86%) Spring Boot
13 84 (8.46%) CSS3
14 77 (7.75%) JSON
15 71 (7.15%) ASP.NET
16 66 (6.65%) ASP.NET Web API
16 66 (6.65%) Sass
17 64 (6.45%) Redux
18 54 (5.44%) Hibernate
18 54 (5.44%) Kafka
Miscellaneous
1 157 (15.81%) Greenfield Project
2 85 (8.56%) Fintech
3 78 (7.85%) User Experience
4 53 (5.34%) Mobile App
5 51 (5.14%) Computer Science
6 35 (3.52%) Data Structures
6 35 (3.52%) iPad
7 30 (3.02%) Derivative
8 29 (2.92%) Foreign Exchange (FX)
9 26 (2.62%) Analytical Skills
9 26 (2.62%) Fixed Income
10 24 (2.42%) Algorithms
11 20 (2.01%) Equities
12 14 (1.41%) Enterprise Software
12 14 (1.41%) Virtual Team
13 13 (1.31%) Equity Derivative
14 12 (1.21%) Credit Risk
15 10 (1.01%) Video\Live Streaming
16 9 (0.91%) Cloud Native
17 8 (0.81%) Self-Motivation
Operating Systems
1 97 (9.77%) Linux
2 52 (5.24%) Unix
3 35 (3.52%) Apple iOS
4 27 (2.72%) Android
5 26 (2.62%) Windows
6 10 (1.01%) Mac OS X
6 10 (1.01%) Windows Server
7 3 (0.30%) CoreOS
7 3 (0.30%) VMS
8 2 (0.20%) Oracle Linux
9 1 (0.10%) CentOS
9 1 (0.10%) Mac OS
9 1 (0.10%) Windows 7
9 1 (0.10%) Windows Mobile
9 1 (0.10%) Windows Server 2012
Processes & Methodologies
1 692 (69.69%) Agile Software Development
2 408 (41.09%) BDD
3 276 (27.79%) Microservices
4 188 (18.93%) Scrum
5 182 (18.33%) DevOps
6 172 (17.32%) Continuous Integration
7 151 (15.21%) Test Automation
8 144 (14.50%) Software Engineering
9 141 (14.20%) MVC
10 135 (13.60%) OO
11 125 (12.59%) Front End Development
12 106 (10.67%) Pair Programming
13 103 (10.37%) E-Commerce
13 103 (10.37%) Unit Testing
14 101 (10.17%) Multithreading
15 87 (8.76%) Kanban
16 82 (8.26%) Continuous Delivery
17 66 (6.65%) SOA
18 63 (6.34%) Problem-Solving
19 52 (5.24%) Open Source
Programming Languages
1 369 (37.16%) Java
2 359 (36.15%) JavaScript
3 213 (21.45%) C#
4 173 (17.42%) Java 8
5 158 (15.91%) SQL
6 125 (12.59%) Python
7 93 (9.37%) Ruby
8 75 (7.55%) TypeScript
9 69 (6.95%) Scala
10 54 (5.44%) Groovy
11 49 (4.93%) ES6
12 43 (4.33%) PHP
13 40 (4.03%) Kotlin
14 39 (3.93%) Bash Shell
15 29 (2.92%) Go
16 27 (2.72%) T-SQL
17 25 (2.52%) C
18 18 (1.81%) PHP 7
19 16 (1.61%) Apple Swift
20 15 (1.51%) PowerShell
Qualifications
1 73 (7.35%) Degree
2 24 (2.42%) Computer Science Degree
3 17 (1.71%) Security Cleared
4 14 (1.41%) SC Cleared
5 4 (0.40%) ISEB
5 4 (0.40%) Numerate Degree
6 3 (0.30%) DV Cleared
7 2 (0.20%) BPSS Clearance
7 2 (0.20%) ISTQB
8 1 (0.10%) AWS Certification
8 1 (0.10%) DBS Check
8 1 (0.10%) PhD
Quality Assurance & Compliance
1 60 (6.04%) QA
2 3 (0.30%) Data Quality
2 3 (0.30%) Disclosure Scotland
2 3 (0.30%) PCI DSS
3 2 (0.20%) GDPR
3 2 (0.20%) PSD2
3 2 (0.20%) SLA
4 1 (0.10%) MiFID
System Software
1 216 (21.75%) Docker
2 5 (0.50%) HDFS
3 2 (0.20%) Active Directory
3 2 (0.20%) Virtual Machines
4 1 (0.10%) Platform Symphony
4 1 (0.10%) Virtual Desktop
4 1 (0.10%) VMware Infrastructure
Systems Management
1 113 (11.38%) Kubernetes
2 40 (4.03%) Ansible
3 34 (3.42%) Mesos
4 32 (3.22%) Puppet
4 32 (3.22%) Terraform
5 24 (2.42%) Consul
6 20 (2.01%) Opscode Chef
7 11 (1.11%) Docker Swarm
7 11 (1.11%) Prometheus
8 9 (0.91%) Marathon
9 8 (0.81%) Kibana
10 6 (0.60%) logstash
10 6 (0.60%) systemd
11 5 (0.50%) Business Desktop Deployment
11 5 (0.50%) Grafana
11 5 (0.50%) HP ALM
12 4 (0.40%) Hadoop YARN
12 4 (0.40%) Single Sign-On
13 2 (0.20%) Fluentd
13 2 (0.20%) Nagios
Vendors
1 56 (5.64%) Microsoft
2 33 (3.32%) Oracle
3 23 (2.32%) Google
4 22 (2.22%) IBM
5 15 (1.51%) Splunk
5 15 (1.51%) Sybase
6 14 (1.41%) Salesforce.com
7 11 (1.11%) TIBCO
8 10 (1.01%) Apple
9 8 (0.81%) AppDynamics
10 7 (0.70%) Atlassian
10 7 (0.70%) New Relic
10 7 (0.70%) Rollbar
11 6 (0.60%) Cadence
11 6 (0.60%) Citrix
11 6 (0.60%) Progress
12 5 (0.50%) Apiary
12 5 (0.50%) Escenic
12 5 (0.50%) HP
12 5 (0.50%) Sitecore