Period
to 16 February 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 16 February 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
16 Feb 2020
Same period 2019 Same period 2018
Rank 15 9 10
Rank change year-on-year -6 +1 -1
Contract jobs citing TDD 422 794 785
As % of all contract IT jobs advertised in the City of London 9.06% 11.72% 11.03%
As % of the Processes & Methodologies category 10.36% 13.23% 12.38%
Number of daily rates quoted 379 713 700
City of London median daily rate £550 £550 £525
Median daily rate % change year-on-year - +4.76% -
10th Percentile £425 £425 £413
90th Percentile £688 £675 £663
Central London median daily rate £550 £538 £525
% change year-on-year +2.33% +2.38% +5.00%
Number of hourly rates quoted 1 0 0
City of London median hourly rate £63.33 - -
Central London median hourly rate £63.33 - -

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 4,074 6,002 6,343
As % of all contract IT jobs advertised in the City of London 87.46% 88.58% 89.14%
Number of daily rates quoted 3,099 4,690 5,061
City of London median daily rate £513 £518 £500
Median daily rate % change year-on-year -0.97% +3.50% +4.17%
10th Percentile £318 £325 £325
90th Percentile £688 £675 £688
Central London median daily rate £500 £513 £500
% change year-on-year -2.44% +2.50% +5.26%
Number of hourly rates quoted 57 59 71
City of London median hourly rate £21.00 £22.00 £18.70
Median hourly rate % change year-on-year -4.55% +17.65% -9.88%
10th Percentile £12.42 £13.00 £11.61
90th Percentile £51.65 £37.09 £38.50
Central London median hourly rate £21.53 £21.07 £20.75
% change year-on-year +2.17% +1.55% +2.67%

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 16 February 2020.

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 16 February 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 -1 3 £500 -4.76%
London Bridge -10 1 £400 -27.27%
TDD
Central London

For the 6 months to 16 February 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.

1 297 (70.38%) Agile Software Development
2 188 (44.55%) Java
3 153 (36.26%) BDD
4 122 (28.91%) Microservices
5 106 (25.12%) JavaScript
6 86 (20.38%) Spring
7 73 (17.30%) AWS
8 68 (16.11%) Azure
8 68 (16.11%) C#
9 67 (15.88%) Pair Programming
10 65 (15.40%) Continuous Integration
10 65 (15.40%) Docker
11 64 (15.17%) DevOps
12 63 (14.93%) HTML
12 63 (14.93%) .NET
13 62 (14.69%) Scrum
14 61 (14.45%) AngularJS
15 60 (14.22%) React
16 59 (13.98%) SQL
16 59 (13.98%) CSS
17 57 (13.51%) Finance
18 54 (12.80%) Kafka
19 52 (12.32%) Kubernetes
20 51 (12.09%) Git (software)
21 48 (11.37%) Software Engineering
21 48 (11.37%) Java 8
22 47 (11.14%) Test Automation
22 47 (11.14%) RESTful
23 46 (10.90%) Python
24 42 (9.95%) REST

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 19 (4.50%) Elasticsearch
2 16 (3.79%) Confluence
3 14 (3.32%) Apache Spark
4 7 (1.66%) CMS
5 5 (1.18%) Adobe Experience Manager
6 4 (0.95%) IIS
6 4 (0.95%) JBoss
7 3 (0.71%) Anypoint
7 3 (0.71%) Apache
7 3 (0.71%) WordPress
8 2 (0.47%) Jetty
8 2 (0.47%) Tomcat
9 1 (0.24%) Apache Airflow
9 1 (0.24%) Cloud Foundry
9 1 (0.24%) Drupal
9 1 (0.24%) EPiServer
9 1 (0.24%) Jupyter
9 1 (0.24%) OpenStack
9 1 (0.24%) WebSphere
Applications
1 4 (0.95%) Zeplin
2 1 (0.24%) Chatbot
2 1 (0.24%) Microsoft Excel
Business Applications
1 1 (0.24%) FastStats
1 1 (0.24%) Oracle Financials
1 1 (0.24%) Oracle Retail
1 1 (0.24%) PeopleSoft Financials
Cloud Services
1 73 (17.30%) AWS
2 68 (16.11%) Azure
3 19 (4.50%) GCP
4 15 (3.55%) GitHub
5 8 (1.90%) Cloud Computing
5 8 (1.90%) PaaS
6 5 (1.18%) Power Platform
6 5 (1.18%) Serverless
7 4 (0.95%) Azure Active Directory
7 4 (0.95%) npm
8 3 (0.71%) Amazon SQS
8 3 (0.71%) AWS Lambda
8 3 (0.71%) Google App Engine
8 3 (0.71%) IaaS
9 2 (0.47%) Firebase
9 2 (0.47%) SaaS
10 1 (0.24%) AWS CloudFormation
10 1 (0.24%) Azure Data Factory
10 1 (0.24%) Dynamics 365
10 1 (0.24%) Yarn
Communications & Networking
1 15 (3.55%) HTTP
2 11 (2.61%) DNS
2 11 (2.61%) FTP
3 10 (2.37%) SSL
3 10 (2.37%) TCP/IP
4 2 (0.47%) Internet
4 2 (0.47%) Multicast
5 1 (0.24%) Firewall
5 1 (0.24%) Intrusion Detection
5 1 (0.24%) LAN
5 1 (0.24%) MPLS
5 1 (0.24%) PuTTY
5 1 (0.24%) SMTP
5 1 (0.24%) Software-Defined Networking
5 1 (0.24%) SSH
5 1 (0.24%) WAN
5 1 (0.24%) Wi-Fi
Database & Business Intelligence
1 26 (6.16%) MySQL
2 24 (5.69%) SQL Server
3 22 (5.21%) MongoDB
4 17 (4.03%) NoSQL
5 16 (3.79%) PostgreSQL
6 12 (2.84%) Azure SQL Database
6 12 (2.84%) Hadoop
6 12 (2.84%) Relational Database
7 10 (2.37%) Apache Cassandra
7 10 (2.37%) HBase
7 10 (2.37%) Redis
7 10 (2.37%) SQL Server Integration Services
8 8 (1.90%) Data Warehouse
8 8 (1.90%) RDBMS
9 7 (1.66%) Big Data
10 5 (1.18%) Apache Hive
10 5 (1.18%) Jackrabbit
10 5 (1.18%) Power BI
11 4 (0.95%) Cosmos DB
11 4 (0.95%) SQL Server Analysis Services
Development Applications
1 51 (12.09%) Git (software)
2 32 (7.58%) Jenkins
3 25 (5.92%) JIRA
4 15 (3.55%) Team Foundation Server
5 14 (3.32%) GitLab
6 12 (2.84%) Gradle
7 11 (2.61%) webpack
8 10 (2.37%) Cucumber
8 10 (2.37%) Gatling
8 10 (2.37%) Geb
8 10 (2.37%) SpecFlow
8 10 (2.37%) Spock
9 9 (2.13%) Travis CI
10 8 (1.90%) gulp
10 8 (1.90%) JConsole
10 8 (1.90%) JProfiler
10 8 (1.90%) Selenium
10 8 (1.90%) VisualVM
11 7 (1.66%) TeamCity
12 6 (1.42%) Mockito
General
1 57 (13.51%) Finance
2 28 (6.64%) Banking
3 22 (5.21%) Front Office
4 13 (3.08%) Retail
5 10 (2.37%) Marketing
6 9 (2.13%) Investment Banking
7 6 (1.42%) Public Sector
8 4 (0.95%) Games
8 4 (0.95%) Retail Banking
8 4 (0.95%) Telecoms
9 3 (0.71%) Advertising
9 3 (0.71%) Financial Institution
10 2 (0.47%) Electronics
11 1 (0.24%) Automotive
11 1 (0.24%) Law
11 1 (0.24%) Manufacturing
11 1 (0.24%) Police
11 1 (0.24%) Publishing
Job Titles
1 323 (76.54%) Developer
2 135 (31.99%) Java Developer
3 45 (10.66%) Senior Developer
4 32 (7.58%) AWS Developer
5 31 (7.35%) .NET Developer
6 28 (6.64%) React Developer
7 25 (5.92%) Full Stack Developer
8 23 (5.45%) C# Developer
9 18 (4.27%) Python Developer
10 17 (4.03%) Agile Developer
10 17 (4.03%) Architect
10 17 (4.03%) Front End Developer (Client-Side Developer)
11 14 (3.32%) Agile Java Developer
11 14 (3.32%) Senior Java Developer
12 13 (3.08%) Software Engineer
13 12 (2.84%) Angular Developer
13 12 (2.84%) Java Engineer
13 12 (2.84%) JavaScript Developer
14 11 (2.61%) Azure Developer
14 11 (2.61%) Scala Developer
Libraries, Frameworks & Software Standards
1 86 (20.38%) Spring
2 63 (14.93%) .NET
2 63 (14.93%) HTML
3 61 (14.45%) AngularJS
4 60 (14.22%) React
5 59 (13.98%) CSS
6 54 (12.80%) Kafka
7 47 (11.14%) RESTful
8 42 (9.95%) REST
9 40 (9.48%) Node.js
9 40 (9.48%) Spring Boot
10 31 (7.35%) Redux
11 29 (6.87%) Web Services
12 28 (6.64%) HTML5
13 25 (5.92%) Spring Cloud
14 19 (4.50%) OAuth
15 17 (4.03%) OAuth2
16 16 (3.79%) ASP.NET
16 16 (3.79%) Jest
17 15 (3.55%) .NET Core
Miscellaneous
1 42 (9.95%) Greenfield Project
2 17 (4.03%) Enterprise Software
3 15 (3.55%) User Experience
4 12 (2.84%) Analytical Skills
5 10 (2.37%) Equities
6 8 (1.90%) Algorithms
6 8 (1.90%) Fixed Income
7 7 (1.66%) Foreign Exchange (FX)
8 5 (1.18%) Linux Command Line
8 5 (1.18%) Public Cloud
9 4 (0.95%) Video\Live Streaming
10 3 (0.71%) Credit Risk
10 3 (0.71%) Mobile App
10 3 (0.71%) N-Tier
10 3 (0.71%) Over-the-Top Content
10 3 (0.71%) Virtual Team
11 2 (0.47%) BYOD
11 2 (0.47%) Data Structures
11 2 (0.47%) Hedge funds
11 2 (0.47%) iPad
Operating Systems
1 28 (6.64%) Linux
2 14 (3.32%) Unix
3 10 (2.37%) Apple iOS
4 5 (1.18%) Android
5 4 (0.95%) Mac OS X
6 3 (0.71%) Windows
7 1 (0.24%) Red Hat Enterprise Linux
7 1 (0.24%) tvOS
7 1 (0.24%) Windows Server
Processes & Methodologies
1 297 (70.38%) Agile Software Development
2 153 (36.26%) BDD
3 122 (28.91%) Microservices
4 67 (15.88%) Pair Programming
5 65 (15.40%) Continuous Integration
6 64 (15.17%) DevOps
7 62 (14.69%) Scrum
8 48 (11.37%) Software Engineering
9 47 (11.14%) Test Automation
10 37 (8.77%) Continuous Delivery
11 32 (7.58%) Kanban
12 31 (7.35%) Front End Development
13 30 (7.11%) E-Commerce
14 29 (6.87%) Fintech
15 27 (6.40%) Unit Testing
16 24 (5.69%) Multithreading
17 23 (5.45%) Continuous Improvement
18 21 (4.98%) Computer Science
18 21 (4.98%) Digital Transformation Programme
19 19 (4.50%) Low Latency
Programming Languages
1 188 (44.55%) Java
2 106 (25.12%) JavaScript
3 68 (16.11%) C#
4 59 (13.98%) SQL
5 48 (11.37%) Java 8
6 46 (10.90%) Python
7 41 (9.72%) TypeScript
8 25 (5.92%) Scala
9 22 (5.21%) Ruby
10 16 (3.79%) Go
10 16 (3.79%) Kotlin
10 16 (3.79%) PHP
11 14 (3.32%) ES6
12 8 (1.90%) T-SQL
13 7 (1.66%) C
13 7 (1.66%) VB.NET
14 6 (1.42%) Apple Swift
15 5 (1.18%) R
16 4 (0.95%) Apex Code
16 4 (0.95%) C++
Qualifications
1 19 (4.50%) Degree
2 14 (3.32%) Security Cleared
3 11 (2.61%) SC Cleared
4 9 (2.13%) Computer Science Degree
5 7 (1.66%) Master's Degree
6 2 (0.47%) BC Cleared
6 2 (0.47%) ISTQB
Quality Assurance & Compliance
1 22 (5.21%) QA
2 2 (0.47%) WCAG
3 1 (0.24%) Data Quality
System Software
1 65 (15.40%) Docker
2 7 (1.66%) HDFS
3 3 (0.71%) Active Directory
4 2 (0.47%) VMware Infrastructure
5 1 (0.24%) Apache ZooKeeper
5 1 (0.24%) Varnish
5 1 (0.24%) vSphere
Systems Management
1 52 (12.32%) Kubernetes
2 19 (4.50%) Terraform
3 12 (2.84%) Ansible
4 11 (2.61%) Docker Swarm
5 7 (1.66%) Hadoop YARN
6 4 (0.95%) MIIS
7 3 (0.71%) Puppet
8 2 (0.47%) Cobbler
8 2 (0.47%) Opscode Chef
8 2 (0.47%) Prometheus
9 1 (0.24%) Grafana
9 1 (0.24%) Graphite
9 1 (0.24%) Nagios
9 1 (0.24%) Single Sign-On
Vendors
1 20 (4.74%) Microsoft
2 19 (4.50%) Google
3 12 (2.84%) Atlassian
4 8 (1.90%) Salesforce.com
5 5 (1.18%) Adobe
5 5 (1.18%) Oracle
6 3 (0.71%) CA
6 3 (0.71%) CA Agile Central
6 3 (0.71%) Criteo
6 3 (0.71%) Facebook
6 3 (0.71%) MuleSoft
6 3 (0.71%) Tableau
7 2 (0.47%) GoCardless
7 2 (0.47%) New Relic
7 2 (0.47%) Red Hat
7 2 (0.47%) VMware
7 2 (0.47%) Zuora
8 1 (0.24%) Apple
8 1 (0.24%) Hyperion
8 1 (0.24%) Retek