Period
to 8 April 2020

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 8 April 2020 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
8 Apr 2020
Same period 2019 Same period 2018
Rank 15 14 10
Rank change year-on-year -1 -4 -1
Contract jobs citing TDD 350 715 793
As % of all contract jobs advertised in the City of London 8.47% 10.47% 11.16%
As % of the Processes & Methodologies category 9.71% 11.71% 12.49%
Number of daily rates quoted 309 644 712
Median daily rate £573 £550 £525
Median daily rate % change year-on-year +4.09% +4.76% +5.00%
10th Percentile £425 £424 £413
90th Percentile £688 £675 £675
Central London median daily rate £550 £550 £525
% change year-on-year - +4.76% +5.00%
Number of hourly rates quoted 3 1 0
Median hourly rate £55.00 £60.00 -
Median hourly rate % change year-on-year -8.33% - -
Central London median hourly rate £55.00 £60.00 -
% change year-on-year -8.33% - -

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 3,604 6,106 6,349
As % of all contract IT jobs advertised in the City of London 87.22% 89.40% 89.35%
Number of daily rates quoted 2,646 4,712 5,047
Median daily rate £525 £525 £510
Median daily rate % change year-on-year - +2.94% +3.55%
10th Percentile £325 £325 £338
90th Percentile £675 £675 £697
Central London median daily rate £511 £525 £500
% change year-on-year -2.67% +5.00% +5.26%
Number of hourly rates quoted 60 55 87
Median hourly rate £26.22 £22.00 £20.00
Median hourly rate % change year-on-year +19.18% +10.00% -2.53%
10th Percentile £12.42 £12.76 £11.81
90th Percentile £52.25 £42.61 £46.16
Median hourly rate £32.51 £21.50 £21.50
% change year-on-year +51.22% - +13.16%

TDD
Job Vacancy Trend in the City of London

Job postings citing TDD as a proportion 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

3-month moving average daily rate quoted in jobs citing TDD in the City of London.

Daily rate trend for TDD in the City of London

TDD
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing TDD in the City of London over the 6 months to 8 April 2020.

Daily rate histogram for TDD in the City of London

TDD
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing TDD in the City of London.

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 8 April 2020. 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
Moorgate +8 2 £500 -4.76%
London Bridge -5 1 £400 -27.27%
TDD
Central London

For the 6 months to 8 April 2020, 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.

1 252 (72.00%) Agile Software Development
2 158 (45.14%) Java
3 123 (35.14%) BDD
4 94 (26.86%) Microservices
5 84 (24.00%) JavaScript
6 72 (20.57%) Spring
7 58 (16.57%) Pair Programming
8 55 (15.71%) Continuous Integration
8 55 (15.71%) Scrum
8 55 (15.71%) React
9 54 (15.43%) DevOps
10 53 (15.14%) Azure
11 51 (14.57%) SQL
12 50 (14.29%) HTML
12 50 (14.29%) AngularJS
13 49 (14.00%) CSS
14 48 (13.71%) C#
15 47 (13.43%) Docker
16 46 (13.14%) AWS
16 46 (13.14%) .NET
17 44 (12.57%) Finance
18 42 (12.00%) Kafka
19 41 (11.71%) Greenfield Project
20 38 (10.86%) Git (software)
20 38 (10.86%) Python
21 37 (10.57%) RESTful
21 37 (10.57%) Kubernetes
22 35 (10.00%) Software Engineering
23 33 (9.43%) Test Automation
23 33 (9.43%) Java 8

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 16 (4.57%) Apache Spark
2 14 (4.00%) Elasticsearch
3 13 (3.71%) Confluence
4 6 (1.71%) CMS
5 5 (1.43%) Adobe Experience Manager
5 5 (1.43%) IIS
6 4 (1.14%) WordPress
7 2 (0.57%) Cloud Foundry
8 1 (0.29%) Anypoint
8 1 (0.29%) Apache
8 1 (0.29%) Apache Airflow
8 1 (0.29%) Drupal
8 1 (0.29%) EPiServer
8 1 (0.29%) Jupyter
8 1 (0.29%) OpenStack
8 1 (0.29%) SharePoint
Applications
1 3 (0.86%) Zeplin
Business Applications
1 1 (0.29%) FastStats
Cloud Services
1 53 (15.14%) Azure
2 46 (13.14%) AWS
3 19 (5.43%) GCP
4 13 (3.71%) GitHub
5 8 (2.29%) PaaS
6 7 (2.00%) Serverless
7 6 (1.71%) AWS Lambda
8 5 (1.43%) SaaS
9 4 (1.14%) Cloud Computing
10 3 (0.86%) Amazon EC2
10 3 (0.86%) Amazon S3
10 3 (0.86%) Azure Active Directory
10 3 (0.86%) IaaS
11 2 (0.57%) Amazon ELB
11 2 (0.57%) Firebase
11 2 (0.57%) Google App Engine
11 2 (0.57%) npm
11 2 (0.57%) OpenShift
11 2 (0.57%) Power Platform
12 1 (0.29%) Amazon ECS
Communications & Networking
1 8 (2.29%) HTTP
2 4 (1.14%) DNS
2 4 (1.14%) FTP
2 4 (1.14%) SSL
2 4 (1.14%) TCP/IP
3 2 (0.57%) Intrusion Detection
3 2 (0.57%) Multicast
4 1 (0.29%) Firewall
4 1 (0.29%) Internet
4 1 (0.29%) MPLS
4 1 (0.29%) PuTTY
4 1 (0.29%) Software-Defined Networking
Database & Business Intelligence
1 22 (6.29%) SQL Server
2 19 (5.43%) MySQL
3 14 (4.00%) PostgreSQL
4 13 (3.71%) MongoDB
5 12 (3.43%) NoSQL
5 12 (3.43%) Relational Database
6 11 (3.14%) Azure SQL Database
7 10 (2.86%) Redis
8 8 (2.29%) Hadoop
9 7 (2.00%) HBase
9 7 (2.00%) RDBMS
10 5 (1.43%) Apache Hive
10 5 (1.43%) Big Data
10 5 (1.43%) Jackrabbit
10 5 (1.43%) SQL Server Integration Services
11 4 (1.14%) Apache Cassandra
12 3 (0.86%) Amazon RDS
12 3 (0.86%) Cosmos DB
12 3 (0.86%) Data Warehouse
12 3 (0.86%) Impala
Development Applications
1 38 (10.86%) Git (software)
2 29 (8.29%) Jenkins
3 27 (7.71%) JIRA
4 10 (2.86%) JUnit
4 10 (2.86%) SpecFlow
5 8 (2.29%) GitLab
5 8 (2.29%) Selenium
5 8 (2.29%) Travis CI
6 7 (2.00%) Gradle
6 7 (2.00%) RSpec
6 7 (2.00%) Team Foundation Server
7 6 (1.71%) Cucumber
7 6 (1.71%) Mockito
8 5 (1.43%) Atlassian Bamboo
8 5 (1.43%) JConsole
8 5 (1.43%) JProfiler
8 5 (1.43%) TeamCity
8 5 (1.43%) Visual Studio
8 5 (1.43%) VisualVM
8 5 (1.43%) webpack
General
1 44 (12.57%) Finance
2 24 (6.86%) Banking
2 24 (6.86%) Front Office
3 15 (4.29%) Investment Banking
4 10 (2.86%) Retail
5 8 (2.29%) Marketing
6 7 (2.00%) Games
7 5 (1.43%) Public Sector
8 4 (1.14%) Publishing
8 4 (1.14%) Retail Banking
8 4 (1.14%) Telecoms
9 3 (0.86%) Advertising
9 3 (0.86%) Automotive
9 3 (0.86%) Financial Institution
10 2 (0.57%) Electronics
11 1 (0.29%) Legal
11 1 (0.29%) Manufacturing
Job Titles
1 268 (76.57%) Developer
2 104 (29.71%) Java Developer
3 28 (8.00%) Senior Developer
4 24 (6.86%) AWS Developer
4 24 (6.86%) React Developer
5 20 (5.71%) .NET Developer
6 19 (5.43%) Full Stack Developer
7 16 (4.57%) C# Developer
8 13 (3.71%) Agile Developer
8 13 (3.71%) Python Developer
8 13 (3.71%) Scala Developer
9 11 (3.14%) Angular Developer
9 11 (3.14%) Architect
9 11 (3.14%) Azure Developer
9 11 (3.14%) Front End Developer (Client-Side Developer)
10 10 (2.86%) Agile Java Developer
10 10 (2.86%) Java Engineer
10 10 (2.86%) PHP Developer
10 10 (2.86%) Ruby on Rails Developer
11 9 (2.57%) Android Developer
Libraries, Frameworks & Software Standards
1 72 (20.57%) Spring
2 55 (15.71%) React
3 50 (14.29%) AngularJS
3 50 (14.29%) HTML
4 49 (14.00%) CSS
5 46 (13.14%) .NET
6 42 (12.00%) Kafka
7 37 (10.57%) RESTful
8 32 (9.14%) Node.js
9 27 (7.71%) REST
9 27 (7.71%) Spring Boot
10 26 (7.43%) Web Services
11 25 (7.14%) Redux
12 23 (6.57%) HTML5
13 22 (6.29%) Spring Cloud
14 17 (4.86%) ASP.NET
15 14 (4.00%) GraphQL
16 13 (3.71%) .NET Core
16 13 (3.71%) CSS3
17 12 (3.43%) OAuth
Miscellaneous
1 41 (11.71%) Greenfield Project
2 15 (4.29%) Enterprise Software
3 14 (4.00%) User Experience
4 13 (3.71%) Analytical Skills
5 11 (3.14%) Fixed Income
6 9 (2.57%) Foreign Exchange (FX)
7 7 (2.00%) Algorithms
8 4 (1.14%) Equities
8 4 (1.14%) Linux Command Line
8 4 (1.14%) N-Tier
8 4 (1.14%) Video\Live Streaming
9 3 (0.86%) Credit Risk
9 3 (0.86%) Derivative
9 3 (0.86%) Over-the-Top Content
9 3 (0.86%) Public Cloud
9 3 (0.86%) Virtual Team
10 2 (0.57%) BYOD
10 2 (0.57%) Data Structures
10 2 (0.57%) Hedge funds
10 2 (0.57%) Mobile App
Operating Systems
1 14 (4.00%) Linux
2 10 (2.86%) Unix
3 9 (2.57%) Android
3 9 (2.57%) Apple iOS
4 2 (0.57%) Mac OS X
4 2 (0.57%) Windows
Processes & Methodologies
1 252 (72.00%) Agile Software Development
2 123 (35.14%) BDD
3 94 (26.86%) Microservices
4 58 (16.57%) Pair Programming
5 55 (15.71%) Continuous Integration
5 55 (15.71%) Scrum
6 54 (15.43%) DevOps
7 35 (10.00%) Software Engineering
8 33 (9.43%) Test Automation
9 30 (8.57%) Continuous Delivery
9 30 (8.57%) Kanban
10 26 (7.43%) Continuous Improvement
11 25 (7.14%) E-Commerce
11 25 (7.14%) Fintech
11 25 (7.14%) Front End Development
12 22 (6.29%) Unit Testing
13 20 (5.71%) Low Latency
13 20 (5.71%) Multithreading
14 19 (5.43%) Functional Programming
15 17 (4.86%) Computer Science
Programming Languages
1 158 (45.14%) Java
2 84 (24.00%) JavaScript
3 51 (14.57%) SQL
4 48 (13.71%) C#
5 38 (10.86%) Python
6 33 (9.43%) Java 8
7 30 (8.57%) TypeScript
8 26 (7.43%) Scala
9 21 (6.00%) Kotlin
10 19 (5.43%) Ruby
11 16 (4.57%) PHP
12 14 (4.00%) Go
13 10 (2.86%) ES6
14 7 (2.00%) R
15 6 (1.71%) T-SQL
16 5 (1.43%) Apple Swift
17 4 (1.14%) C
18 3 (0.86%) C++
18 3 (0.86%) Shell Script
18 3 (0.86%) VB.NET
Qualifications
1 18 (5.14%) Degree
2 12 (3.43%) Security Cleared
3 9 (2.57%) Computer Science Degree
4 8 (2.29%) Master's Degree
4 8 (2.29%) SC Cleared
5 2 (0.57%) BC Cleared
5 2 (0.57%) ISEB
5 2 (0.57%) ISTQB
6 1 (0.29%) ISTQB Foundation Certification
6 1 (0.29%) Numerate Degree
Quality Assurance & Compliance
1 25 (7.14%) QA
2 1 (0.29%) Data Quality
2 1 (0.29%) EMIR
2 1 (0.29%) MiFID
System Software
1 47 (13.43%) Docker
2 7 (2.00%) HDFS
3 3 (0.86%) Active Directory
4 1 (0.29%) VMware Infrastructure
4 1 (0.29%) vSphere
Systems Management
1 37 (10.57%) Kubernetes
2 13 (3.71%) Terraform
3 8 (2.29%) Ansible
4 7 (2.00%) Hadoop YARN
5 4 (1.14%) Docker Swarm
5 4 (1.14%) MIIS
6 3 (0.86%) Prometheus
7 2 (0.57%) Grafana
7 2 (0.57%) Graphite
7 2 (0.57%) Nagios
7 2 (0.57%) Puppet
8 1 (0.29%) Kibana
Vendors
1 18 (5.14%) Microsoft
2 17 (4.86%) Google
3 12 (3.43%) Atlassian
4 5 (1.43%) Adobe
4 5 (1.43%) CA
4 5 (1.43%) CA Agile Central
5 4 (1.14%) Oracle
5 4 (1.14%) Salesforce.com
6 3 (0.86%) Facebook
7 2 (0.57%) Databricks
7 2 (0.57%) GoCardless
7 2 (0.57%) Tableau
7 2 (0.57%) Zuora
8 1 (0.29%) Criteo
8 1 (0.29%) DevExpress
8 1 (0.29%) MuleSoft
8 1 (0.29%) New Relic
8 1 (0.29%) Remedy
8 1 (0.29%) TOWER Software
8 1 (0.29%) VMware