Period
to 18 April 2019

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Unit Testing skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Unit Testing over the 6 months to 18 April 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.

Unit Testing
Central London > City of London
6 months to
18 Apr 2019
Same period 2018 Same period 2017
Rank 133 111 99
Rank change year-on-year -22 -12 +26
Contract jobs citing Unit Testing 113 158 147
As % of all contract IT jobs advertised in the City of London 1.67% 2.25% 2.38%
As % of the Processes & Methodologies category 1.88% 2.54% 2.71%
Number of daily rates quoted 78 121 116
City of London median daily rate £525 £500 £500
Median daily rate % change year-on-year +5.00% - +5.26%
10th Percentile £413 £375 £338
90th Percentile £675 £638 £638
Central London median daily rate £475 £475 £500
% change year-on-year - -5.00% +2.56%
Number of hourly rates quoted 2 0 0
City of London median hourly rate £56.00 - -
Central London median hourly rate £56.00 - -

Unit Testing 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 6,009 6,226 5,419
As % of all contract IT jobs advertised in the City of London 88.86% 88.75% 87.84%
Number of daily rates quoted 4,638 4,932 4,218
City of London median daily rate £525 £510 £494
Median daily rate % change year-on-year +2.94% +3.29% +3.95%
10th Percentile £325 £338 £313
90th Percentile £675 £700 £663
Central London median daily rate £525 £500 £475
% change year-on-year +5.00% +5.26% +2.70%
Number of hourly rates quoted 57 91 45
City of London median hourly rate £22.50 £20.00 £21.16
Median hourly rate % change year-on-year +12.50% -5.46% -2.87%
10th Percentile £12.00 £11.81 £13.50
90th Percentile £56.50 £46.00 £44.35
Central London median hourly rate £22.25 £21.11 £20.52
% change year-on-year +5.39% +2.89% -5.07%

Unit Testing
Job Vacancy Trend in the City of London

Job postings citing Unit Testing as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Unit Testing in the City of London

Unit Testing
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 Unit Testing in the City of London.

Contractor daily rate trend for Unit Testing in the City of London

Unit Testing
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Unit Testing in the City of London over the 6 months to 18 April 2019.

Contractor daily rate histogram for Unit Testing in the City of London

Unit Testing
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 Unit Testing in the City of London.

Contractor hourly rate trend for Unit Testing in the City of London

For the 6 months to 18 April 2019, IT contractor jobs citing Unit Testing 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 Unit Testing.

1 76 (67.26%) Agile Software Development
2 50 (44.25%) TDD
3 48 (42.48%) JavaScript
4 39 (34.51%) Java
5 36 (31.86%) SQL
5 36 (31.86%) C#
5 36 (31.86%) Test Automation
6 35 (30.97%) Git (software)
6 35 (30.97%) HTML
6 35 (30.97%) React
7 34 (30.09%) CSS
8 31 (27.43%) Scrum
9 29 (25.66%) Finance
9 29 (25.66%) Node.js
10 28 (24.78%) Continuous Integration
11 27 (23.89%) HTML5
11 27 (23.89%) Software Engineering
12 26 (23.01%) RESTful
12 26 (23.01%) Microservices
13 24 (21.24%) Jest
13 24 (21.24%) Amazon AWS
13 24 (21.24%) .NET
14 23 (20.35%) Microsoft Azure
14 23 (20.35%) REST
14 23 (20.35%) Docker
15 22 (19.47%) Mocha
16 19 (16.81%) Redux
17 18 (15.93%) Chai
17 18 (15.93%) AngularJS
17 18 (15.93%) Jenkins

Unit Testing
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 9 (7.96%) Confluence
2 4 (3.54%) Apache
2 4 (3.54%) Cloud Foundry
2 4 (3.54%) CMS
3 2 (1.77%) Drupal
3 2 (1.77%) OpenStack
3 2 (1.77%) WebLogic
4 1 (0.88%) EPiServer
4 1 (0.88%) JBoss
4 1 (0.88%) Sitecore CMS
4 1 (0.88%) Tomcat
4 1 (0.88%) WordPress
Applications
1 1 (0.88%) Adobe Illustrator
1 1 (0.88%) InVision
Business Applications
1 1 (0.88%) Eloqua
Cloud Services
1 24 (21.24%) Amazon AWS
2 23 (20.35%) Microsoft Azure
3 8 (7.08%) AWS Lambda
3 8 (7.08%) Serverless
4 7 (6.19%) Cloud Computing
4 7 (6.19%) GitHub
5 4 (3.54%) Amazon EC2
5 4 (3.54%) AWS Fargate
5 4 (3.54%) npm
6 3 (2.65%) Azure Functions
6 3 (2.65%) Datadog
7 1 (0.88%) Apigee
7 1 (0.88%) Google Cloud Platform
7 1 (0.88%) PaaS
Communications & Networking
1 6 (5.31%) HTTP
2 4 (3.54%) TCP/IP
3 2 (1.77%) DMARC
Database & Business Intelligence
1 14 (12.39%) MySQL
2 12 (10.62%) SQL Server
3 10 (8.85%) Relational Database
4 9 (7.96%) MongoDB
5 7 (6.19%) PostgreSQL
6 5 (4.42%) Couchbase
6 5 (4.42%) SQL Server Integration Services
7 4 (3.54%) Amazon RDS
7 4 (3.54%) Apache Cassandra
7 4 (3.54%) NoSQL
8 3 (2.65%) KDB
8 3 (2.65%) SQL Server 2012
9 2 (1.77%) Amazon Aurora
9 2 (1.77%) Amazon Redshift
9 2 (1.77%) CouchDB
9 2 (1.77%) Redis
10 1 (0.88%) Azure SQL Database
10 1 (0.88%) BusinessObjects
10 1 (0.88%) Data Warehouse
10 1 (0.88%) OLAP
Development Applications
1 35 (30.97%) Git (software)
2 22 (19.47%) Mocha
3 18 (15.93%) Jenkins
4 12 (10.62%) JIRA
4 12 (10.62%) webpack
5 11 (9.73%) gulp
5 11 (9.73%) JUnit
6 10 (8.85%) Mockito
6 10 (8.85%) Team Foundation Server
7 8 (7.08%) Atlassian Bamboo
8 6 (5.31%) Jasmine
8 6 (5.31%) Maven
8 6 (5.31%) Octopus Deploy
9 5 (4.42%) Selenium
9 5 (4.42%) TeamCity
10 4 (3.54%) Gatling
11 3 (2.65%) Grunt
11 3 (2.65%) JSUnit
11 3 (2.65%) Karma Test Runner
11 3 (2.65%) SpecFlow
General
1 29 (25.66%) Finance
2 10 (8.85%) Retail
3 8 (7.08%) Banking
4 7 (6.19%) Front Office
5 4 (3.54%) Investment Banking
6 2 (1.77%) Back Office
6 2 (1.77%) Financial Institution
6 2 (1.77%) Law
6 2 (1.77%) Marketing
6 2 (1.77%) Publishing
7 1 (0.88%) Advertising
7 1 (0.88%) Legal
Job Titles
1 89 (78.76%) Developer
2 20 (17.70%) Full Stack Developer
3 16 (14.16%) C# Developer
4 14 (12.39%) Front End Developer (Client-Side Developer)
4 14 (12.39%) Senior Developer
5 13 (11.50%) Java Developer
6 12 (10.62%) React Developer
7 11 (9.73%) .NET Developer
8 10 (8.85%) Agile Developer
9 9 (7.96%) JavaScript Developer
10 7 (6.19%) C# .NET Developer
10 7 (6.19%) Senior Agile Developer
10 7 (6.19%) Web Developer
11 6 (5.31%) Agile Java Developer
11 6 (5.31%) Lead Developer
11 6 (5.31%) Software Developer
12 5 (4.42%) Front End Web Developer (Client-Side Developer)
12 5 (4.42%) JavaScript Engineer
12 5 (4.42%) Software Engineer
13 4 (3.54%) Team Leader
Libraries, Frameworks & Software Standards
1 35 (30.97%) HTML
1 35 (30.97%) React
2 34 (30.09%) CSS
3 29 (25.66%) Node.js
4 27 (23.89%) HTML5
5 26 (23.01%) RESTful
6 24 (21.24%) .NET
6 24 (21.24%) Jest
7 23 (20.35%) REST
8 19 (16.81%) Redux
9 18 (15.93%) AngularJS
9 18 (15.93%) Chai
10 17 (15.04%) Web Services
11 16 (14.16%) Spring
12 15 (13.27%) Sass
13 13 (11.50%) JSON
13 13 (11.50%) LESS
14 12 (10.62%) ASP.NET
15 11 (9.73%) CSS3
16 10 (8.85%) XML
Miscellaneous
1 16 (14.16%) Greenfield Project
2 11 (9.73%) Algorithms
3 10 (8.85%) User Experience
4 9 (7.96%) Fintech
5 7 (6.19%) Analytical Skills
5 7 (6.19%) Data Structures
6 3 (2.65%) Client/Server
6 3 (2.65%) Foreign Exchange (FX)
6 3 (2.65%) Mobile App
6 3 (2.65%) Self-Motivation
7 2 (1.77%) Analytical Mindset
7 2 (1.77%) Enterprise Software
7 2 (1.77%) Hedge funds
7 2 (1.77%) Life Science
7 2 (1.77%) Mainframe
7 2 (1.77%) Private Cloud
7 2 (1.77%) Smart City
8 1 (0.88%) Blog
8 1 (0.88%) Cloud Native
8 1 (0.88%) Reference Data
Operating Systems
1 6 (5.31%) Unix
2 5 (4.42%) Linux
3 3 (2.65%) Windows
4 1 (0.88%) Android
4 1 (0.88%) Apple iOS
Processes & Methodologies
1 76 (67.26%) Agile Software Development
2 50 (44.25%) TDD
3 36 (31.86%) Test Automation
4 31 (27.43%) Scrum
5 28 (24.78%) Continuous Integration
6 27 (23.89%) Software Engineering
7 26 (23.01%) Microservices
8 14 (12.39%) DevOps
8 14 (12.39%) Multithreading
8 14 (12.39%) MVC
8 14 (12.39%) OO
8 14 (12.39%) Pair Programming
8 14 (12.39%) Web Development
9 12 (10.62%) Problem-Solving
9 12 (10.62%) SDLC
10 11 (9.73%) Front End Development
10 11 (9.73%) User Acceptance Testing
11 10 (8.85%) BDD
11 10 (8.85%) Continuous Deployment
11 10 (8.85%) SOLID
Programming Languages
1 48 (42.48%) JavaScript
2 39 (34.51%) Java
3 36 (31.86%) C#
3 36 (31.86%) SQL
4 18 (15.93%) Python
5 6 (5.31%) ES6
5 6 (5.31%) Go
6 4 (3.54%) PHP
6 4 (3.54%) T-SQL
6 4 (3.54%) TypeScript
7 3 (2.65%) PL/SQL
8 2 (1.77%) AWK
8 2 (1.77%) Bash Shell
8 2 (1.77%) C
8 2 (1.77%) ES7
8 2 (1.77%) Kotlin
8 2 (1.77%) R
8 2 (1.77%) sed
9 1 (0.88%) C++
9 1 (0.88%) Java 8
Qualifications
1 16 (14.16%) Degree
2 5 (4.42%) SC Cleared
2 5 (4.42%) Security Cleared
3 3 (2.65%) Numerate Degree
4 1 (0.88%) ISEB
4 1 (0.88%) SAFe Agilist
Quality Assurance & Compliance
1 17 (15.04%) QA
2 4 (3.54%) Solvency II
System Software
1 23 (20.35%) Docker
2 1 (0.88%) zsh
Systems Management
1 7 (6.19%) Kubernetes
2 4 (3.54%) Ansible
3 1 (0.88%) Automic
3 1 (0.88%) Opscode Chef
3 1 (0.88%) Puppet
3 1 (0.88%) Terraform
Vendors
1 8 (7.08%) Microsoft
2 7 (6.19%) Oracle
3 4 (3.54%) Splunk
4 3 (2.65%) New Relic
5 2 (1.77%) Atlassian
5 2 (1.77%) InterSystems
5 2 (1.77%) Rackspace
5 2 (1.77%) Sybase
5 2 (1.77%) TIBCO
6 1 (0.88%) BISAM
6 1 (0.88%) Cadence
6 1 (0.88%) Dynatrace
6 1 (0.88%) Google
6 1 (0.88%) hybris
6 1 (0.88%) Marketo
6 1 (0.88%) Pega
6 1 (0.88%) Sencha
6 1 (0.88%) Sitecore
6 1 (0.88%) YouTube