Period
to 10 August 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 10 August 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
10 Aug 2020
Same period 2019 Same period 2018
Rank 23 15 11
Rank change year-on-year -8 -4 -1
Contract jobs citing TDD 155 581 760
As % of all contract jobs advertised in the City of London 7.01% 8.90% 10.82%
As % of the Processes & Methodologies category 7.96% 9.89% 12.28%
Number of daily rates quoted 129 519 663
Median daily rate £550 £550 £525
Median daily rate % change year-on-year - +4.76% -
10th Percentile £425 £454 £413
90th Percentile £675 £688 £694
Central London median daily rate £550 £550 £525
% change year-on-year - +4.76% +2.44%
Number of hourly rates quoted 2 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 1,947 5,875 6,188
As % of all contract IT jobs advertised in the City of London 88.10% 89.98% 88.06%
Number of daily rates quoted 1,351 4,598 4,887
Median daily rate £525 £525 £513
Median daily rate % change year-on-year - +2.44% +2.50%
10th Percentile £338 £350 £331
90th Percentile £675 £675 £688
Central London median daily rate £513 £525 £500
% change year-on-year -2.38% +5.00% -
Number of hourly rates quoted 43 73 107
Median hourly rate £35.00 £20.83 £18.70
Median hourly rate % change year-on-year +68.03% +11.39% -7.75%
10th Percentile £12.75 £11.25 £13.31
90th Percentile £51.55 £56.50 £33.00
Median hourly rate £35.00 £21.00 £18.85
% change year-on-year +66.67% +11.41% +0.83%

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 10 August 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 10 August 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 +14 1 £500 -
TDD
Central London

For the 6 months to 10 August 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.

1 104 (67.10%) Agile Software Development
2 82 (52.90%) Java
3 60 (38.71%) BDD
4 44 (28.39%) Microservices
5 39 (25.16%) JavaScript
6 34 (21.94%) Front Office
6 34 (21.94%) DevOps
7 33 (21.29%) Docker
8 32 (20.65%) Scrum
9 28 (18.06%) Spring
9 28 (18.06%) Azure
10 27 (17.42%) Banking
11 26 (16.77%) Git (software)
11 26 (16.77%) Continuous Integration
12 25 (16.13%) AWS
12 25 (16.13%) React
13 23 (14.84%) Finance
13 23 (14.84%) HTML
14 22 (14.19%) CSS
14 22 (14.19%) Kubernetes
14 22 (14.19%) AngularJS
14 22 (14.19%) Greenfield Project
15 21 (13.55%) Scala
16 20 (12.90%) Test Automation
16 20 (12.90%) Node.js
16 20 (12.90%) Jenkins
17 19 (12.26%) Pair Programming
17 19 (12.26%) Investment Banking
18 18 (11.61%) SQL
18 18 (11.61%) Multithreading

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 14 (9.03%) Apache Spark
2 4 (2.58%) Confluence
2 4 (2.58%) Elasticsearch
3 2 (1.29%) SharePoint
3 2 (1.29%) WordPress
4 1 (0.65%) Apache Solr
4 1 (0.65%) Cloud Foundry
4 1 (0.65%) IIS
4 1 (0.65%) JBoss
4 1 (0.65%) Red Hat Fuse
Business Applications
1 1 (0.65%) ION MarketView
Cloud Services
1 28 (18.06%) Azure
2 25 (16.13%) AWS
3 8 (5.16%) GitHub
4 7 (4.52%) GCP
5 6 (3.87%) AWS Lambda
5 6 (3.87%) SaaS
5 6 (3.87%) Serverless
6 3 (1.94%) Amazon EC2
6 3 (1.94%) Amazon ECS
6 3 (1.94%) Amazon S3
6 3 (1.94%) IaaS
7 2 (1.29%) Amazon ELB
7 2 (1.29%) Cloud Computing
7 2 (1.29%) npm
7 2 (1.29%) Power Platform
7 2 (1.29%) Slack
8 1 (0.65%) AWS CodePipeline
8 1 (0.65%) AWS Fargate
8 1 (0.65%) PaaS
8 1 (0.65%) Route 53
Communications & Networking
1 2 (1.29%) DHCP
1 2 (1.29%) DNS
1 2 (1.29%) HTTP
1 2 (1.29%) Intrusion Detection
2 1 (0.65%) AMQP
2 1 (0.65%) PuTTY
2 1 (0.65%) WAN
Database & Business Intelligence
1 12 (7.74%) SQL Server
2 8 (5.16%) Hadoop
2 8 (5.16%) NoSQL
3 6 (3.87%) MongoDB
3 6 (3.87%) PostgreSQL
4 5 (3.23%) MySQL
4 5 (3.23%) Relational Database
5 4 (2.58%) SQL Server Integration Services
6 2 (1.29%) Amazon RDS
6 2 (1.29%) Apache Hive
6 2 (1.29%) HBase
6 2 (1.29%) Power BI
6 2 (1.29%) Redis
6 2 (1.29%) SQL Server 2017
7 1 (0.65%) Amazon Athena
7 1 (0.65%) Amazon Redshift
7 1 (0.65%) Big Data
7 1 (0.65%) Impala
7 1 (0.65%) SSDT
Development Applications
1 26 (16.77%) Git (software)
2 20 (12.90%) Jenkins
3 9 (5.81%) Cucumber
3 9 (5.81%) JIRA
3 9 (5.81%) JUnit
4 8 (5.16%) Selenium
5 6 (3.87%) Maven
5 6 (3.87%) Sonatype Nexus
5 6 (3.87%) TeamCity
6 4 (2.58%) CircleCI
6 4 (2.58%) Jasmine
6 4 (2.58%) Mockito
6 4 (2.58%) Octopus Deploy
6 4 (2.58%) Postman
6 4 (2.58%) SpecFlow
6 4 (2.58%) Subversion
7 3 (1.94%) Atlassian Bamboo
7 3 (1.94%) JMeter
7 3 (1.94%) Mocha
7 3 (1.94%) Team Foundation Server
General
1 34 (21.94%) Front Office
2 27 (17.42%) Banking
3 23 (14.84%) Finance
4 19 (12.26%) Investment Banking
5 5 (3.23%) Public Sector
6 4 (2.58%) Games
6 4 (2.58%) Publishing
7 3 (1.94%) Financial Institution
8 2 (1.29%) Advertising
8 2 (1.29%) Automotive
8 2 (1.29%) Marketing
8 2 (1.29%) Police
9 1 (0.65%) Legal
9 1 (0.65%) Retail
9 1 (0.65%) Telecoms
Job Titles
1 116 (74.84%) Developer
2 48 (30.97%) Java Developer
3 11 (7.10%) React Developer
3 11 (7.10%) Scala Developer
4 8 (5.16%) Agile Developer
4 8 (5.16%) Agile Java Developer
4 8 (5.16%) Analyst
5 7 (4.52%) Front End Developer (Client-Side Developer)
5 7 (4.52%) Full Stack Developer
6 6 (3.87%) Angular Developer
6 6 (3.87%) AWS Developer
6 6 (3.87%) Backend Developer
6 6 (3.87%) Low Latency Java Developer
7 5 (3.23%) Front Office Developer
7 5 (3.23%) PHP Developer
7 5 (3.23%) Python Developer
7 5 (3.23%) Python Engineer
8 4 (2.58%) .NET Developer
8 4 (2.58%) Analyst Developer
8 4 (2.58%) Test Engineer
Libraries, Frameworks & Software Standards
1 28 (18.06%) Spring
2 25 (16.13%) React
3 23 (14.84%) HTML
4 22 (14.19%) AngularJS
4 22 (14.19%) CSS
5 20 (12.90%) Node.js
6 15 (9.68%) Web Services
7 13 (8.39%) HTML5
8 12 (7.74%) .NET
8 12 (7.74%) RESTful
9 11 (7.10%) Kafka
9 11 (7.10%) REST
9 11 (7.10%) Spring Boot
10 10 (6.45%) CSS3
11 9 (5.81%) Redux
12 8 (5.16%) ASP.NET
12 8 (5.16%) Vue.js
13 7 (4.52%) Akka
13 7 (4.52%) GraphQL
13 7 (4.52%) Sass
Miscellaneous
1 22 (14.19%) Greenfield Project
2 13 (8.39%) Fixed Income
3 7 (4.52%) User Experience
4 5 (3.23%) Foreign Exchange (FX)
5 4 (2.58%) Analytical Skills
5 4 (2.58%) Derivative
5 4 (2.58%) Market Risk
6 3 (1.94%) Self-Motivation
7 2 (1.29%) Clustering
7 2 (1.29%) Credit Risk
7 2 (1.29%) Enterprise Software
7 2 (1.29%) Management Information System
7 2 (1.29%) N-Tier
7 2 (1.29%) Public Cloud
8 1 (0.65%) Client/Server
8 1 (0.65%) Credit Derivative
8 1 (0.65%) FMCG
8 1 (0.65%) Interest Rate Derivative
8 1 (0.65%) Video on Demand
8 1 (0.65%) W3C
Operating Systems
1 8 (5.16%) Linux
2 6 (3.87%) Unix
3 4 (2.58%) Android
4 2 (1.29%) Mac OS X
5 1 (0.65%) Windows
Processes & Methodologies
1 104 (67.10%) Agile Software Development
2 60 (38.71%) BDD
3 44 (28.39%) Microservices
4 34 (21.94%) DevOps
5 32 (20.65%) Scrum
6 26 (16.77%) Continuous Integration
7 20 (12.90%) Test Automation
8 19 (12.26%) Pair Programming
9 18 (11.61%) Multithreading
10 16 (10.32%) Software Engineering
11 12 (7.74%) SDLC
12 11 (7.10%) Continuous Delivery
13 10 (6.45%) Continuous Improvement
13 10 (6.45%) Kanban
13 10 (6.45%) Low Latency
13 10 (6.45%) MVC
13 10 (6.45%) Problem-Solving
14 9 (5.81%) E-Commerce
14 9 (5.81%) High Availability
14 9 (5.81%) Unit Testing
Programming Languages
1 82 (52.90%) Java
2 39 (25.16%) JavaScript
3 21 (13.55%) Scala
4 18 (11.61%) SQL
5 14 (9.03%) Java 8
5 14 (9.03%) Python
6 13 (8.39%) C#
6 13 (8.39%) Kotlin
7 10 (6.45%) TypeScript
8 9 (5.81%) PHP
8 9 (5.81%) Ruby
9 4 (2.58%) R
9 4 (2.58%) Shell Script
10 3 (1.94%) C
10 3 (1.94%) ES6
10 3 (1.94%) T-SQL
11 2 (1.29%) Go
11 2 (1.29%) Perl
12 1 (0.65%) Groovy
12 1 (0.65%) XPath
Qualifications
1 11 (7.10%) Degree
2 9 (5.81%) Security Cleared
3 8 (5.16%) Numerate Degree
4 2 (1.29%) ISEB
4 2 (1.29%) ISTQB
4 2 (1.29%) SC Cleared
5 1 (0.65%) BPSS Clearance
5 1 (0.65%) Computer Science Degree
5 1 (0.65%) DBS Check
5 1 (0.65%) ISTQB Foundation Certification
5 1 (0.65%) Master's Degree
Quality Assurance & Compliance
1 11 (7.10%) QA
2 2 (1.29%) WCAG
3 1 (0.65%) Data Quality
3 1 (0.65%) Disclosure Scotland
3 1 (0.65%) EMIR
3 1 (0.65%) MiFID
System Software
1 33 (21.29%) Docker
2 2 (1.29%) Veritas Cluster Server
3 1 (0.65%) HDFS
Systems Management
1 22 (14.19%) Kubernetes
2 8 (5.16%) Terraform
3 4 (2.58%) Puppet
4 3 (1.94%) Ansible
5 2 (1.29%) Graphite
5 2 (1.29%) Nagios
5 2 (1.29%) Opscode Chef
5 2 (1.29%) Pacemaker
5 2 (1.29%) Prometheus
5 2 (1.29%) Salt
6 1 (0.65%) Grafana
6 1 (0.65%) Hadoop YARN
6 1 (0.65%) Kibana
Vendors
1 10 (6.45%) Microsoft
2 5 (3.23%) Google
3 4 (2.58%) Databricks
4 2 (1.29%) Atlassian
4 2 (1.29%) CA
4 2 (1.29%) CA Agile Central
4 2 (1.29%) Facebook
4 2 (1.29%) SaltStack
4 2 (1.29%) Splunk
4 2 (1.29%) Tableau
4 2 (1.29%) Veritas
5 1 (0.65%) Cadence
5 1 (0.65%) DevExpress
5 1 (0.65%) IBM
5 1 (0.65%) ION Trading
5 1 (0.65%) Murex
5 1 (0.65%) Oracle
5 1 (0.65%) Remedy
5 1 (0.65%) Salesforce.com
5 1 (0.65%) Sybase