Period
to 17 January 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 January 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 Jan 2019
Same period 2018 Same period 2017
Rank 9 10 10
Rank change year-on-year +1 0 +5
Contract jobs citing TDD 829 783 691
As % of all contract IT jobs advertised in the City of London 12.19% 11.09% 11.04%
As % of the Processes & Methodologies category 13.87% 12.44% 12.43%
Number of daily rates quoted 740 692 627
City of London median daily rate £550 £525 £525
Median daily rate % change year-on-year +4.76% - +5.00%
10th Percentile £425 £413 £366
90th Percentile £650 £650 £650
Central London median daily rate £544 £525 £500
% change year-on-year +3.57% +5.00% -
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

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 5,976 6,296 5,560
As % of all contract IT jobs advertised in the City of London 87.84% 89.15% 88.86%
Number of daily rates quoted 4,679 5,018 4,412
City of London median daily rate £513 £500 £475
Median daily rate % change year-on-year +2.50% +5.26% -
10th Percentile £318 £325 £313
90th Percentile £675 £688 £665
Central London median daily rate £513 £500 £475
% change year-on-year +2.50% +5.26% +3.26%
Number of hourly rates quoted 70 61 50
City of London median hourly rate £19.13 £18.70 £21.13
Median hourly rate % change year-on-year +2.27% -11.48% -1.43%
10th Percentile £13.00 £11.81 £13.73
90th Percentile £35.21 £31.50 £55.00
Central London median hourly rate £19.25 £20.25 £19.00
% change year-on-year -4.94% +6.58% -10.06%

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 January 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 January 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 -1 95 £575 +4.55%
Moorgate - 8 £525 -
TDD
Central London

For the 6 months to 17 January 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.

1 582 (70.21%) Agile Software Development
2 364 (43.91%) Java
3 296 (35.71%) BDD
4 273 (32.93%) Microservices
5 266 (32.09%) JavaScript
6 230 (27.74%) Finance
7 200 (24.13%) C#
8 195 (23.52%) HTML
9 186 (22.44%) Amazon AWS
10 181 (21.83%) .NET
11 174 (20.99%) Spring
12 173 (20.87%) Microsoft Azure
13 169 (20.39%) Greenfield Project
14 168 (20.27%) CSS
15 165 (19.90%) AngularJS
16 156 (18.82%) OO
16 156 (18.82%) Continuous Integration
17 153 (18.46%) Docker
18 152 (18.34%) Git (software)
19 141 (17.01%) REST
20 139 (16.77%) Java 8
21 135 (16.28%) DevOps
22 134 (16.16%) RESTful
23 131 (15.80%) React
24 130 (15.68%) Test Automation
25 122 (14.72%) SQL
26 115 (13.87%) Scrum
27 114 (13.75%) Front End Development
28 108 (13.03%) NoSQL
29 104 (12.55%) Software Engineering

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 38 (4.58%) Tomcat
1 38 (4.58%) WebLogic
2 37 (4.46%) Elasticsearch
3 33 (3.98%) OpenStack
3 33 (3.98%) WebSphere
4 28 (3.38%) CMS
4 28 (3.38%) Confluence
5 24 (2.90%) Apache Spark
6 17 (2.05%) Apache
7 13 (1.57%) JBoss
8 12 (1.45%) NServiceBus
9 11 (1.33%) Cloud Foundry
10 9 (1.09%) Gunicorn
11 5 (0.60%) Mule
11 5 (0.60%) SharePoint
12 3 (0.36%) Apache Airflow
12 3 (0.36%) Drupal
12 3 (0.36%) IIS
12 3 (0.36%) Oracle SOA Suite
13 2 (0.24%) Sitecore CMS
Applications
1 4 (0.48%) Microsoft Excel
2 2 (0.24%) Adobe Illustrator
2 2 (0.24%) InVision
2 2 (0.24%) Snapchat
Business Applications
1 2 (0.24%) Payment Gateway
Cloud Services
1 186 (22.44%) Amazon AWS
2 173 (20.87%) Microsoft Azure
3 23 (2.77%) GitHub
4 22 (2.65%) Serverless
5 20 (2.41%) Google Cloud Platform
6 16 (1.93%) PaaS
7 15 (1.81%) Cloud Computing
8 14 (1.69%) Heroku
9 10 (1.21%) Amazon EC2
9 10 (1.21%) npm
10 7 (0.84%) AWS Lambda
11 6 (0.72%) Amazon SQS
11 6 (0.72%) OpenShift
11 6 (0.72%) SaaS
12 5 (0.60%) Amazon S3
12 5 (0.60%) IaaS
13 3 (0.36%) Azure Functions
13 3 (0.36%) Office 365
13 3 (0.36%) Yammer
14 2 (0.24%) Yarn
Communications & Networking
1 32 (3.86%) HTTP
2 12 (1.45%) TCP/IP
3 11 (1.33%) DNS
4 10 (1.21%) FTP
5 9 (1.09%) SSL
6 5 (0.60%) AMQP
7 4 (0.48%) Internet
8 3 (0.36%) DMARC
8 3 (0.36%) Firewall
9 2 (0.24%) HTTPS
10 1 (0.12%) LAN
10 1 (0.12%) SMTP
10 1 (0.12%) SSH
Database & Business Intelligence
1 108 (13.03%) NoSQL
2 103 (12.42%) SQL Server
3 70 (8.44%) PostgreSQL
4 69 (8.32%) MongoDB
5 62 (7.48%) Redis
6 61 (7.36%) MySQL
7 54 (6.51%) Apache Cassandra
8 46 (5.55%) Relational Database
9 38 (4.58%) Cosmos DB
10 28 (3.38%) Azure SQL Database
11 24 (2.90%) Riak
12 20 (2.41%) Hadoop
13 18 (2.17%) SQL Server 2012
14 17 (2.05%) Impala
15 16 (1.93%) Data Lake
16 14 (1.69%) SQL Server 2016
17 12 (1.45%) Big Data
18 11 (1.33%) SQL Server 2014
19 10 (1.21%) Apache Hive
19 10 (1.21%) Apache Kudu
Development Applications
1 152 (18.34%) Git (software)
2 87 (10.49%) Jenkins
3 84 (10.13%) Maven
4 60 (7.24%) Selenium
5 56 (6.76%) JIRA
5 56 (6.76%) JUnit
6 52 (6.27%) NUnit
7 44 (5.31%) Cucumber
8 38 (4.58%) MSTest
9 33 (3.98%) Mockito
10 30 (3.62%) gulp
11 29 (3.50%) Gradle
12 28 (3.38%) SpecFlow
12 28 (3.38%) webpack
13 25 (3.02%) jMock
13 25 (3.02%) Octopus Deploy
13 25 (3.02%) Team Foundation Server
14 23 (2.77%) Mocha
15 22 (2.65%) Subversion
15 22 (2.65%) TeamCity
General
1 230 (27.74%) Finance
2 100 (12.06%) Banking
3 55 (6.63%) Front Office
4 29 (3.50%) Investment Banking
5 26 (3.14%) Publishing
6 21 (2.53%) Law
7 14 (1.69%) Financial Institution
8 13 (1.57%) Retail
9 9 (1.09%) Back Office
10 7 (0.84%) Pharmaceutical
11 6 (0.72%) Advertising
11 6 (0.72%) Billing
11 6 (0.72%) Games
12 5 (0.60%) Automotive
13 4 (0.48%) Telecoms
14 3 (0.36%) Marketing
14 3 (0.36%) Multimedia
15 1 (0.12%) Legal
Job Titles
1 637 (76.84%) Developer
2 253 (30.52%) Java Developer
3 150 (18.09%) Senior Developer
4 84 (10.13%) .NET Developer
5 78 (9.41%) Senior Java Developer
6 76 (9.17%) Front End Developer (Client-Side Developer)
7 61 (7.36%) C# Developer
8 60 (7.24%) React Developer
9 57 (6.88%) JavaScript Developer
10 45 (5.43%) Angular Developer
11 43 (5.19%) Full Stack Developer
12 31 (3.74%) AWS Developer
13 25 (3.02%) Azure Developer
13 25 (3.02%) Scala Developer
14 24 (2.90%) Analyst
14 24 (2.90%) Lead Developer
15 22 (2.65%) Software Engineer
16 21 (2.53%) Agile Developer
16 21 (2.53%) C# .NET Developer
17 20 (2.41%) Agile Java Developer
Libraries, Frameworks & Software Standards
1 195 (23.52%) HTML
2 181 (21.83%) .NET
3 174 (20.99%) Spring
4 168 (20.27%) CSS
5 165 (19.90%) AngularJS
6 141 (17.01%) REST
7 134 (16.16%) RESTful
8 131 (15.80%) React
9 102 (12.30%) Spring Boot
10 97 (11.70%) Node.js
11 88 (10.62%) HTML5
12 79 (9.53%) Web Services
13 73 (8.81%) .NET Core
14 61 (7.36%) Hibernate
15 58 (7.00%) Redux
16 54 (6.51%) JSON
17 53 (6.39%) Sass
18 51 (6.15%) .NET Framework
19 49 (5.91%) Kafka
20 46 (5.55%) CSS3
Miscellaneous
1 169 (20.39%) Greenfield Project
2 63 (7.60%) User Experience
3 62 (7.48%) Fintech
4 33 (3.98%) Fixed Income
5 29 (3.50%) Mobile App
6 19 (2.29%) Analytical Skills
6 19 (2.29%) Data Structures
7 17 (2.05%) Foreign Exchange (FX)
8 15 (1.81%) Derivative
9 14 (1.69%) Algorithms
10 11 (1.33%) Equities
10 11 (1.33%) Self-Motivation
11 9 (1.09%) Hedge funds
12 8 (0.97%) Equity Derivative
12 8 (0.97%) iPad
12 8 (0.97%) Tandem
13 7 (0.84%) Video\Live Streaming
14 6 (0.72%) Fat Client
14 6 (0.72%) Video on Demand
14 6 (0.72%) Virtual Team
Operating Systems
1 65 (7.84%) Linux
2 37 (4.46%) Unix
3 21 (2.53%) Android
4 19 (2.29%) Windows
5 16 (1.93%) Apple iOS
6 9 (1.09%) Windows Server
7 4 (0.48%) Mac OS X
8 2 (0.24%) VMS
9 1 (0.12%) Mac OS
9 1 (0.12%) tvOS
Processes & Methodologies
1 582 (70.21%) Agile Software Development
2 296 (35.71%) BDD
3 273 (32.93%) Microservices
4 156 (18.82%) Continuous Integration
4 156 (18.82%) OO
5 135 (16.28%) DevOps
6 130 (15.68%) Test Automation
7 115 (13.87%) Scrum
8 114 (13.75%) Front End Development
9 104 (12.55%) Software Engineering
10 84 (10.13%) Pair Programming
11 78 (9.41%) Unit Testing
12 77 (9.29%) Continuous Delivery
13 76 (9.17%) MVC
14 62 (7.48%) Kanban
15 56 (6.76%) Computer Science
16 55 (6.63%) Multithreading
17 48 (5.79%) E-Commerce
18 47 (5.67%) Open Source
19 45 (5.43%) OOP
Programming Languages
1 364 (43.91%) Java
2 266 (32.09%) JavaScript
3 200 (24.13%) C#
4 139 (16.77%) Java 8
5 122 (14.72%) SQL
6 62 (7.48%) Python
7 53 (6.39%) Kotlin
8 44 (5.31%) TypeScript
9 41 (4.95%) ES6
9 41 (4.95%) Scala
10 22 (2.65%) C
11 20 (2.41%) PowerShell
12 19 (2.29%) T-SQL
13 17 (2.05%) Ruby
14 16 (1.93%) PHP
15 12 (1.45%) Go
16 10 (1.21%) Bash Shell
16 10 (1.21%) PL/SQL
17 9 (1.09%) C++
17 9 (1.09%) Haskell
Qualifications
1 69 (8.32%) Degree
2 18 (2.17%) Computer Science Degree
3 9 (1.09%) SC Cleared
3 9 (1.09%) Security Cleared
4 2 (0.24%) Numerate Degree
5 1 (0.12%) AWS Certification
5 1 (0.12%) BPSS Clearance
5 1 (0.12%) DBS Check
5 1 (0.12%) ISTQB
5 1 (0.12%) Master's Degree
5 1 (0.12%) Microsoft Certification
5 1 (0.12%) SAFe Agilist
Quality Assurance & Compliance
1 48 (5.79%) QA
2 2 (0.24%) Disclosure Scotland
2 2 (0.24%) PSD2
3 1 (0.12%) Data Quality
3 1 (0.12%) WCAG
System Software
1 153 (18.46%) Docker
2 11 (1.33%) HDFS
3 6 (0.72%) VMware Infrastructure
3 6 (0.72%) vSphere
4 5 (0.60%) Active Directory
5 1 (0.12%) Virtual Machines
Systems Management
1 79 (9.53%) Kubernetes
2 52 (6.27%) Ansible
3 48 (5.79%) Opscode Chef
4 45 (5.43%) Puppet
5 37 (4.46%) Terraform
6 10 (1.21%) Docker Swarm
7 8 (0.97%) Kibana
8 7 (0.84%) Hadoop YARN
9 6 (0.72%) logstash
9 6 (0.72%) systemd
10 3 (0.36%) Single Sign-On
11 2 (0.24%) Fluentd
11 2 (0.24%) Mesos
11 2 (0.24%) Nagios
11 2 (0.24%) Prometheus
12 1 (0.12%) Consul
12 1 (0.12%) Oozie
Vendors
1 64 (7.72%) Oracle
2 37 (4.46%) Microsoft
3 22 (2.65%) Atlassian
4 21 (2.53%) Sybase
5 16 (1.93%) Google
6 12 (1.45%) Splunk
6 12 (1.45%) Terracotta
7 9 (1.09%) Cadence
8 8 (0.97%) TIBCO
9 7 (0.84%) Apple
9 7 (0.84%) Cloudera
9 7 (0.84%) Salesforce.com
10 6 (0.72%) Citrix
10 6 (0.72%) Escenic
10 6 (0.72%) VMware
11 5 (0.60%) Progress
12 3 (0.36%) Murex
12 3 (0.36%) Sitecore
13 2 (0.24%) Rackspace
13 2 (0.24%) Telerik