Period
to 19 July 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 19 July 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
19 Jul 2018
Same period 2017 Same period 2016
Rank 12 10 11
Rank change year-on-year -2 +1 +10
Contract jobs citing TDD 971 767 864
As % of all contract IT jobs advertised in Central London 10.47% 10.07% 10.27%
As % of the Processes & Methodologies category 11.97% 11.49% 11.74%
Number of daily rates quoted 837 661 788
Central London median daily rate £525 £513 £500
Median daily rate % change year-on-year +2.44% +2.50% +5.26%
10th Percentile £413 £363 £350
90th Percentile £688 £650 £638
London median daily rate £525 £500 £488
% change year-on-year +5.00% +2.56% +8.33%
Number of hourly rates quoted 0 0 0
Central London median hourly rate - - -
London median hourly rate £45.00 £35.00 £55.00
% change year-on-year +28.57% -36.36% -

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 8,112 6,674 7,361
As % of all contract IT jobs advertised in Central London 87.45% 87.67% 87.51%
Number of daily rates quoted 6,311 5,086 5,815
Central London median daily rate £500 £500 £473
Median daily rate % change year-on-year - +5.82% +5.00%
10th Percentile £325 £313 £306
90th Percentile £688 £675 £650
London median daily rate £500 £488 £463
% change year-on-year +2.56% +5.41% +2.78%
Number of hourly rates quoted 124 70 65
Central London median hourly rate £18.70 £18.70 £20.00
Median hourly rate % change year-on-year - -6.50% -4.76%
10th Percentile £12.58 £12.88 £11.25
90th Percentile £37.43 £30.44 £49.55
London median hourly rate £24.75 £24.00 £21.34
% change year-on-year +3.13% +12.46% +8.24%

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 19 July 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 19 July 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 -2 742 £525 - 257
West End of London +10 42 £525 +23.53% 57
City of Westminster +3 20 £513 +7.89%
Southwark -6 9 £550 -
Camden -7 5 £460 +43.75%
TDD
London

For the 6 months to 19 July 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.

1 703 (72.40%) Agile Software Development
2 406 (41.81%) Java
3 380 (39.13%) BDD
4 320 (32.96%) JavaScript
5 244 (25.13%) Microservices
6 240 (24.72%) Amazon AWS
7 238 (24.51%) Finance
8 235 (24.20%) Git (software)
9 234 (24.10%) REST
10 216 (22.25%) HTML
11 212 (21.83%) C#
12 204 (21.01%) .NET
13 201 (20.70%) Java 8
14 196 (20.19%) CSS
14 196 (20.19%) Scrum
15 193 (19.88%) DevOps
16 188 (19.36%) Docker
17 181 (18.64%) Continuous Integration
18 178 (18.33%) AngularJS
19 177 (18.23%) React
20 168 (17.30%) Node.js
20 168 (17.30%) Microsoft Azure
21 160 (16.48%) Spring
22 155 (15.96%) Greenfield Project
23 147 (15.14%) RESTful
24 146 (15.04%) SQL
25 141 (14.52%) MVC
26 136 (14.01%) HTML5
27 135 (13.90%) Test Automation
28 134 (13.80%) Python

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 41 (4.22%) Apache
2 39 (4.02%) Elasticsearch
3 32 (3.30%) Cloud Foundry
4 28 (2.88%) Apache Spark
5 22 (2.27%) Confluence
6 19 (1.96%) MQSeries
7 16 (1.65%) NServiceBus
8 15 (1.54%) JBoss
8 15 (1.54%) Tomcat
9 9 (0.93%) CMS
10 8 (0.82%) OpenStack
11 7 (0.72%) Umbraco
11 7 (0.72%) WebLogic
11 7 (0.72%) WebSphere
12 5 (0.51%) Apache Pig
13 4 (0.41%) IIS
14 3 (0.31%) ArcGIS
14 3 (0.31%) Jetty
14 3 (0.31%) Mule
14 3 (0.31%) WordPress
Applications
1 7 (0.72%) Microsoft Excel
2 1 (0.10%) Chatbot
2 1 (0.10%) Microsoft Office
Business Applications
1 3 (0.31%) Distributed Ledger
2 2 (0.21%) Dynamics CRM
2 2 (0.21%) SDL Web 8
2 2 (0.21%) Summit
Cloud Services
1 240 (24.72%) Amazon AWS
2 168 (17.30%) Microsoft Azure
3 61 (6.28%) Heroku
4 42 (4.33%) npm
5 35 (3.60%) GitHub
6 30 (3.09%) Google Cloud Platform
7 28 (2.88%) Cloud Computing
8 22 (2.27%) Serverless
9 18 (1.85%) IBM Cloud
10 16 (1.65%) Amazon S3
10 16 (1.65%) IaaS
11 14 (1.44%) Amazon EC2
11 14 (1.44%) PaaS
12 11 (1.13%) AWS Lambda
13 9 (0.93%) Amazon CloudWatch
13 9 (0.93%) Amazon SQS
14 7 (0.72%) SaaS
15 6 (0.62%) Amazon Kinesis
15 6 (0.62%) Slack
16 4 (0.41%) Amazon EMR
Communications & Networking
1 60 (6.18%) HTTP
2 39 (4.02%) TCP/IP
3 27 (2.78%) DNS
3 27 (2.78%) FTP
3 27 (2.78%) SSL
4 6 (0.62%) Internet
4 6 (0.62%) SMS
5 2 (0.21%) Bluetooth
5 2 (0.21%) DKIM
5 2 (0.21%) DMARC
5 2 (0.21%) Firewall
5 2 (0.21%) Skype
6 1 (0.10%) AMQP
6 1 (0.10%) Broadband
6 1 (0.10%) FIX Connectivity
6 1 (0.10%) HTTPS
6 1 (0.10%) Intranet
6 1 (0.10%) Network Security
Database & Business Intelligence
1 132 (13.59%) NoSQL
2 118 (12.15%) SQL Server
3 89 (9.17%) MongoDB
4 62 (6.39%) MySQL
4 62 (6.39%) PostgreSQL
5 48 (4.94%) Relational Database
6 38 (3.91%) Big Data
7 37 (3.81%) SQL Server 2012
8 34 (3.50%) Apache Cassandra
9 33 (3.40%) SQL Server 2016
10 29 (2.99%) Hadoop
11 28 (2.88%) Redis
12 27 (2.78%) SQL Server 2014
13 19 (1.96%) Couchbase
14 13 (1.34%) Cosmos DB
15 9 (0.93%) Blockchain
15 9 (0.93%) Neo4j
16 8 (0.82%) Apache Hive
16 8 (0.82%) Data Lake
17 7 (0.72%) Azure SQL Database
Development Applications
1 235 (24.20%) Git (software)
2 127 (13.08%) Jenkins
3 95 (9.78%) Maven
4 61 (6.28%) webpack
5 52 (5.36%) Gradle
5 52 (5.36%) JIRA
5 52 (5.36%) Selenium
6 49 (5.05%) JUnit
7 46 (4.74%) Mockito
8 44 (4.53%) gulp
9 43 (4.43%) GitLab
10 36 (3.71%) Cucumber
10 36 (3.71%) NUnit
11 31 (3.19%) TeamCity
12 30 (3.09%) Ant
13 29 (2.99%) Grunt
13 29 (2.99%) SpecFlow
14 28 (2.88%) Babel
15 27 (2.78%) Sonatype Nexus
15 27 (2.78%) Visual Studio Team System
General
1 238 (24.51%) Finance
2 125 (12.87%) Banking
3 44 (4.53%) Games
4 40 (4.12%) Investment Banking
5 34 (3.50%) Financial Institution
6 27 (2.78%) Retail
7 26 (2.68%) Front Office
8 15 (1.54%) Law
9 14 (1.44%) Marketing
10 11 (1.13%) Back Office
10 11 (1.13%) Retail Banking
11 8 (0.82%) Publishing
12 7 (0.72%) Advertising
13 6 (0.62%) Legal
14 4 (0.41%) Manufacturing
14 4 (0.41%) Telecoms
15 3 (0.31%) Automotive
16 2 (0.21%) Pharmaceutical
16 2 (0.21%) Prime Brokerage
16 2 (0.21%) Private Banking
Job Titles
1 769 (79.20%) Developer
2 293 (30.18%) Java Developer
3 137 (14.11%) Senior Developer
4 107 (11.02%) C# Developer
5 93 (9.58%) .NET Developer
6 66 (6.80%) JavaScript Developer
7 63 (6.49%) React Developer
8 60 (6.18%) Front End Developer (Client-Side Developer)
8 60 (6.18%) Senior Java Developer
9 57 (5.87%) Agile Developer
10 44 (4.53%) Full Stack Developer
11 42 (4.33%) Agile Java Developer
12 37 (3.81%) Software Engineer
13 36 (3.71%) C# .NET Developer
14 35 (3.60%) Angular Developer
15 34 (3.50%) DevOps Engineer
16 32 (3.30%) Lead Developer
17 30 (3.09%) Python Developer
18 29 (2.99%) Scala Developer
18 29 (2.99%) Senior DevOps
Libraries, Frameworks & Software Standards
1 234 (24.10%) REST
2 216 (22.25%) HTML
3 204 (21.01%) .NET
4 196 (20.19%) CSS
5 178 (18.33%) AngularJS
6 177 (18.23%) React
7 168 (17.30%) Node.js
8 160 (16.48%) Spring
9 147 (15.14%) RESTful
10 136 (14.01%) HTML5
11 103 (10.61%) Web Services
12 89 (9.17%) ASP.NET
13 81 (8.34%) Spring Boot
14 79 (8.14%) CSS3
15 71 (7.31%) SOAP
16 70 (7.21%) ASP.NET Web API
17 69 (7.11%) Hibernate
18 68 (7.00%) Redux
19 62 (6.39%) Kafka
20 61 (6.28%) JSON
Miscellaneous
1 155 (15.96%) Greenfield Project
2 64 (6.59%) Fintech
3 54 (5.56%) Mobile App
4 49 (5.05%) User Experience
5 33 (3.40%) Derivative
6 31 (3.19%) iPad
7 29 (2.99%) Algorithms
8 23 (2.37%) Computer Science
8 23 (2.37%) Data Structures
9 20 (2.06%) Fixed Income
10 19 (1.96%) Enterprise Software
10 19 (1.96%) Equity Derivative
11 17 (1.75%) Analytical Skills
11 17 (1.75%) Foreign Exchange (FX)
12 16 (1.65%) Cloud Native
12 16 (1.65%) Equities
13 15 (1.54%) Virtual Team
14 13 (1.34%) Hedge funds
15 12 (1.24%) Credit Risk
16 9 (0.93%) Self-Motivation
Operating Systems
1 104 (10.71%) Linux
2 54 (5.56%) Unix
3 30 (3.09%) Apple iOS
4 28 (2.88%) Android
5 18 (1.85%) Windows
6 16 (1.65%) Mac OS X
7 5 (0.51%) Windows Server
8 3 (0.31%) CoreOS
9 2 (0.21%) Oracle Linux
9 2 (0.21%) VMS
9 2 (0.21%) Windows Server 2008
10 1 (0.10%) CentOS
10 1 (0.10%) Mac OS
10 1 (0.10%) Ubuntu
Processes & Methodologies
1 703 (72.40%) Agile Software Development
2 380 (39.13%) BDD
3 244 (25.13%) Microservices
4 196 (20.19%) Scrum
5 193 (19.88%) DevOps
6 181 (18.64%) Continuous Integration
7 141 (14.52%) MVC
8 135 (13.90%) Test Automation
9 127 (13.08%) Software Engineering
10 119 (12.26%) Multithreading
11 116 (11.95%) OO
12 110 (11.33%) Pair Programming
13 102 (10.50%) Continuous Delivery
14 96 (9.89%) Kanban
15 88 (9.06%) Unit Testing
16 82 (8.44%) E-Commerce
17 80 (8.24%) Front End Development
18 68 (7.00%) SOA
19 57 (5.87%) Problem-Solving
20 55 (5.66%) SOLID
Programming Languages
1 406 (41.81%) Java
2 320 (32.96%) JavaScript
3 212 (21.83%) C#
4 201 (20.70%) Java 8
5 146 (15.04%) SQL
6 134 (13.80%) Python
7 94 (9.68%) Scala
8 93 (9.58%) Ruby
9 69 (7.11%) ES6
10 68 (7.00%) Groovy
11 62 (6.39%) TypeScript
12 44 (4.53%) Kotlin
13 43 (4.43%) Bash Shell
14 35 (3.60%) Go
15 22 (2.27%) PHP
16 18 (1.85%) T-SQL
17 15 (1.54%) Java 9
17 15 (1.54%) Shell Script
18 14 (1.44%) C++
19 11 (1.13%) VB.NET
Qualifications
1 57 (5.87%) Degree
2 20 (2.06%) Security Cleared
3 14 (1.44%) SC Cleared
4 11 (1.13%) Computer Science Degree
5 5 (0.51%) DV Cleared
6 4 (0.41%) ISEB
7 3 (0.31%) BPSS Clearance
7 3 (0.31%) Numerate Degree
8 2 (0.21%) Master's Degree
9 1 (0.10%) DBS Check
9 1 (0.10%) ISTQB
9 1 (0.10%) PhD
Quality Assurance & Compliance
1 43 (4.43%) QA
2 22 (2.27%) GCP
3 5 (0.51%) Data Quality
4 3 (0.31%) PCI DSS
5 2 (0.21%) Disclosure Scotland
5 2 (0.21%) HMG Security Policy Framework
5 2 (0.21%) PMO
5 2 (0.21%) SLA
6 1 (0.10%) GDPR
6 1 (0.10%) MiFID
System Software
1 188 (19.36%) Docker
2 4 (0.41%) Active Directory
3 3 (0.31%) HDFS
4 1 (0.10%) Platform Symphony
4 1 (0.10%) Virtual Desktop
Systems Management
1 88 (9.06%) Kubernetes
2 43 (4.43%) Ansible
3 36 (3.71%) Mesos
3 36 (3.71%) Puppet
4 32 (3.30%) Terraform
5 25 (2.57%) Consul
6 24 (2.47%) Opscode Chef
7 17 (1.75%) Docker Swarm
8 10 (1.03%) Marathon
9 9 (0.93%) Prometheus
10 5 (0.51%) Business Desktop Deployment
10 5 (0.51%) Grafana
10 5 (0.51%) HP ALM
10 5 (0.51%) Kibana
10 5 (0.51%) logstash
11 4 (0.41%) systemd
12 2 (0.21%) Control-M
13 1 (0.10%) EMC NetWorker
13 1 (0.10%) Hadoop YARN
13 1 (0.10%) Nagios
Vendors
1 52 (5.36%) Microsoft
2 35 (3.60%) Oracle
3 22 (2.27%) IBM
4 18 (1.85%) Splunk
5 17 (1.75%) Google
6 14 (1.44%) Salesforce.com
7 11 (1.13%) Sybase
8 7 (0.72%) AppDynamics
8 7 (0.72%) New Relic
8 7 (0.72%) Rollbar
9 6 (0.62%) TIBCO
10 5 (0.51%) Apiary
10 5 (0.51%) HP
10 5 (0.51%) Sitecore
11 4 (0.41%) Apigee
11 4 (0.41%) Atlassian
11 4 (0.41%) Cadence
11 4 (0.41%) Citrix
11 4 (0.41%) Red Hat
12 3 (0.31%) SAP