Period
to 19 June 2018

The following table provides summary statistics for contract job vacancies advertised in Leeds 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 19 June 2018 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)
6 months to
19 Jun 2018
Same period 2017 Same period 2016
Rank 5 12 7
Rank change year-on-year +7 -5 +11
Contract jobs citing TDD 368 218 402
As % of all contract IT jobs advertised in Leeds 14.60% 10.30% 14.07%
As % of the Processes & Methodologies category 16.35% 11.70% 15.99%
Number of daily rates quoted 268 188 326
Leeds median daily rate £425 £420 £450
Median daily rate % change year-on-year +1.19% -6.67% +23.29%
10th Percentile £325 £349 £325
90th Percentile £535 £523 £525
West Yorkshire median daily rate £425 £420 £450
% change year-on-year +1.19% -6.67% +20.00%
Number of hourly rates quoted 0 0 0
Leeds median hourly rate - - -
West Yorkshire 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 Leeds with a requirement for process or methodology skills.

All Process and Methodology Skills
Leeds
Contract vacancies with a requirement for process or methodology skills 2,251 1,863 2,514
As % of all contract IT jobs advertised in Leeds 89.33% 88.04% 87.99%
Number of daily rates quoted 1,556 1,261 1,768
Leeds median daily rate £405 £400 £400
Median daily rate % change year-on-year +1.25% - +11.11%
10th Percentile £300 £293 £300
90th Percentile £538 £550 £575
West Yorkshire median daily rate £400 £400 £400
Number of hourly rates quoted 38 15 34
Leeds median hourly rate £25.50 £15.25 £13.00
Median hourly rate % change year-on-year +67.21% +17.31% -25.71%
10th Percentile £12.85 £12.00 £10.20
90th Percentile £43.45 £35.35 £21.58
West Yorkshire median hourly rate £17.50 £12.25 £14.50
% change year-on-year +42.86% -15.52% -17.14%

TDD
Job Vacancy Trend in Leeds

Job postings citing TDD as a percentage of all IT jobs advertised in Leeds.

Job vacancy trend for TDD in Leeds

TDD
Contractor Daily Rate Trend in Leeds

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Leeds.

Contractor daily rate trend for TDD in Leeds

TDD
Contractor Daily Rate Histogram in Leeds

The daily rate distribution of IT jobs citing TDD in Leeds over the 6 months to 19 June 2018.

Contractor daily rate histogram for TDD in Leeds

For the 6 months to 19 June 2018, 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 Leeds region with a requirement for TDD.

1 320 (86.96%) Agile Software Development
2 210 (57.07%) Java
3 157 (42.66%) Microservices
4 155 (42.12%) JavaScript
5 142 (38.59%) BDD
6 130 (35.33%) Git (software)
6 130 (35.33%) Scrum
7 114 (30.98%) Software Engineering
8 112 (30.43%) Test Automation
9 104 (28.26%) Spring
9 104 (28.26%) Jenkins
10 100 (27.17%) SQL
11 98 (26.63%) Continuous Integration
12 88 (23.91%) Spring Boot
13 81 (22.01%) NoSQL
14 78 (21.20%) C#
15 75 (20.38%) .NET
16 74 (20.11%) Kanban
17 67 (18.21%) Java 8
18 64 (17.39%) REST
18 64 (17.39%) RESTful
19 60 (16.30%) Hibernate
19 60 (16.30%) Docker
20 58 (15.76%) OO
20 58 (15.76%) JIRA
21 57 (15.49%) Linux
22 55 (14.95%) Node.js
23 54 (14.67%) MVC
24 52 (14.13%) ASP.NET
24 52 (14.13%) Open Source

TDD
Co-occurring IT Skills in Leeds 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 46 (12.50%) Confluence
2 36 (9.78%) Apache
3 14 (3.80%) nginx
4 11 (2.99%) CMS
5 10 (2.72%) Apache Spark
5 10 (2.72%) Elasticsearch
6 9 (2.45%) Sitecore CMS
6 9 (2.45%) Tomcat
7 8 (2.17%) Adobe Experience Manager
8 7 (1.90%) IIS
8 7 (1.90%) Jetty
8 7 (1.90%) Mongrel
8 7 (1.90%) WebSphere
9 2 (0.54%) Cloud Foundry
10 1 (0.27%) Apache Solr
Applications
1 3 (0.82%) MS Visio
Cloud Services
1 48 (13.04%) Amazon AWS
2 28 (7.61%) Slack
3 19 (5.16%) Microsoft Azure
4 11 (2.99%) Amazon EC2
5 7 (1.90%) GitHub
5 7 (1.90%) Google App Engine
5 7 (1.90%) Google Cloud Platform
6 6 (1.63%) npm
7 3 (0.82%) Trello
8 2 (0.54%) BrowserStack
8 2 (0.54%) CloudBees
8 2 (0.54%) IaaS
8 2 (0.54%) OpenShift
8 2 (0.54%) PaaS
Communications & Networking
1 7 (1.90%) DHCP
1 7 (1.90%) DNS
1 7 (1.90%) FTP
1 7 (1.90%) HTTP
1 7 (1.90%) IPsec
1 7 (1.90%) SSL
1 7 (1.90%) TCP/IP
2 2 (0.54%) AMQP
2 2 (0.54%) Firewall
2 2 (0.54%) FIX Connectivity
2 2 (0.54%) SMS
Database & Business Intelligence
1 81 (22.01%) NoSQL
2 47 (12.77%) PostgreSQL
3 46 (12.50%) SQL Server
4 40 (10.87%) MySQL
5 38 (10.33%) Big Data
6 37 (10.05%) MongoDB
7 24 (6.52%) Apache Cassandra
8 16 (4.35%) Apache Hive
9 14 (3.80%) SQL Server 2012
10 13 (3.53%) SQL Server 2008
11 7 (1.90%) Hadoop
11 7 (1.90%) Riak
12 6 (1.63%) Data Warehouse
12 6 (1.63%) Relational Database
13 5 (1.36%) RDBMS
14 4 (1.09%) HBase
14 4 (1.09%) Redis
15 2 (0.54%) Amazon RDS
15 2 (0.54%) Couchbase
15 2 (0.54%) Oracle Database
Development Applications
1 130 (35.33%) Git (software)
2 104 (28.26%) Jenkins
3 58 (15.76%) JIRA
4 50 (13.59%) Maven
5 39 (10.60%) Cucumber
6 38 (10.33%) JUnit
7 26 (7.07%) Octopus Deploy
8 24 (6.52%) Jasmine
9 22 (5.98%) Selenium
10 16 (4.35%) Subversion
11 15 (4.08%) Mockito
12 14 (3.80%) Mercurial
12 14 (3.80%) SonarQube
13 12 (3.26%) Artifactory
14 10 (2.72%) Team Foundation Server
14 10 (2.72%) Visual Studio
14 10 (2.72%) WebDriver
14 10 (2.72%) webpack
15 9 (2.45%) MSTest
15 9 (2.45%) NUnit
General
1 18 (4.89%) Finance
2 10 (2.72%) Retail
3 5 (1.36%) Banking
4 4 (1.09%) Games
5 3 (0.82%) Marketing
5 3 (0.82%) Telecoms
6 2 (0.54%) Advertising
6 2 (0.54%) Retail Banking
7 1 (0.27%) Law
7 1 (0.27%) Manufacturing
Job Titles
1 275 (74.73%) Developer
2 125 (33.97%) Java Developer
3 45 (12.23%) Software Engineer
4 43 (11.68%) .NET Developer
5 38 (10.33%) C# Developer
6 30 (8.15%) Java Engineer
7 29 (7.88%) Python Developer
8 28 (7.61%) JavaScript Developer
9 26 (7.07%) C# .NET Developer
10 23 (6.25%) Java Software Engineer
10 23 (6.25%) Senior Developer
11 17 (4.62%) Java Software Developer
12 15 (4.08%) Software Developer
13 14 (3.80%) Senior Java Developer
14 13 (3.53%) Agile Developer
14 13 (3.53%) Test Engineer
15 12 (3.26%) Big Data Developer
15 12 (3.26%) Node.js Developer
15 12 (3.26%) Tester
16 11 (2.99%) PHP Developer
Libraries, Frameworks & Software Standards
1 104 (28.26%) Spring
2 88 (23.91%) Spring Boot
3 75 (20.38%) .NET
4 64 (17.39%) REST
4 64 (17.39%) RESTful
5 60 (16.30%) Hibernate
6 55 (14.95%) Node.js
7 52 (14.13%) ASP.NET
8 51 (13.86%) ASP.NET Web API
9 45 (12.23%) ASP.NET MVC
10 43 (11.68%) Kafka
11 41 (11.14%) HTML
12 40 (10.87%) AngularJS
13 39 (10.60%) Web Services
14 37 (10.05%) CSS
15 26 (7.07%) React
16 23 (6.25%) RabbitMQ
17 21 (5.71%) SOAP
17 21 (5.71%) Vue (Vue.js)
18 20 (5.43%) .NET Framework
Miscellaneous
1 23 (6.25%) Enterprise Software
2 13 (3.53%) User Experience
3 9 (2.45%) Analytical Skills
4 8 (2.17%) NHS
5 4 (1.09%) Management Information System
5 4 (1.09%) Mobile App
6 3 (0.82%) Greenfield Project
7 2 (0.54%) Data Centre
7 2 (0.54%) Digital Media
7 2 (0.54%) Equities
7 2 (0.54%) Foreign Exchange (FX)
8 1 (0.27%) Algorithms
8 1 (0.27%) Computer Science
8 1 (0.27%) Data Structures
8 1 (0.27%) Fintech
8 1 (0.27%) Self-Motivation
8 1 (0.27%) Smart Meter
Operating Systems
1 57 (15.49%) Linux
2 29 (7.88%) Red Hat Enterprise Linux
3 8 (2.17%) Android
4 7 (1.90%) Windows
5 6 (1.63%) Apple iOS
6 2 (0.54%) Kali Linux
6 2 (0.54%) Unix
6 2 (0.54%) VMS
7 1 (0.27%) Mac OS X
Processes & Methodologies
1 320 (86.96%) Agile Software Development
2 157 (42.66%) Microservices
3 142 (38.59%) BDD
4 130 (35.33%) Scrum
5 114 (30.98%) Software Engineering
6 112 (30.43%) Test Automation
7 98 (26.63%) Continuous Integration
8 74 (20.11%) Kanban
9 58 (15.76%) OO
10 54 (14.67%) MVC
11 52 (14.13%) Open Source
12 51 (13.86%) Mentoring
13 39 (10.60%) Pair Programming
14 38 (10.33%) Coaching
15 30 (8.15%) SOA
16 29 (7.88%) DevOps
17 28 (7.61%) SFIA
18 27 (7.34%) Unit Testing
19 22 (5.98%) Integration Testing
20 21 (5.71%) OOP
Programming Languages
1 210 (57.07%) Java
2 155 (42.12%) JavaScript
3 100 (27.17%) SQL
4 78 (21.20%) C#
5 67 (18.21%) Java 8
6 43 (11.68%) Python
7 23 (6.25%) Scala
8 17 (4.62%) PHP
8 17 (4.62%) T-SQL
9 10 (2.72%) Kotlin
10 9 (2.45%) TypeScript
11 8 (2.17%) C++
12 7 (1.90%) PowerShell
13 6 (1.63%) Ruby
14 4 (1.09%) ES6
14 4 (1.09%) Groovy
15 3 (0.82%) PHP 7
16 2 (0.54%) Bash Shell
16 2 (0.54%) C
16 2 (0.54%) Clojure
Qualifications
1 17 (4.62%) SC Cleared
1 17 (4.62%) Security Cleared
2 8 (2.17%) BPSS Clearance
3 2 (0.54%) Degree
3 2 (0.54%) ISEB
3 2 (0.54%) ISTQB Foundation Certification
3 2 (0.54%) TOGAF Certification
4 1 (0.27%) ISTQB
Quality Assurance & Compliance
1 19 (5.16%) QA
2 6 (1.63%) PMO
3 1 (0.27%) WCAG
System Software
1 60 (16.30%) Docker
2 9 (2.45%) VMware Infrastructure
3 7 (1.90%) Xen
4 5 (1.36%) Virtual Machines
5 4 (1.09%) Apache Flume
6 2 (0.54%) vSphere
Systems Management
1 33 (8.97%) Puppet
2 13 (3.53%) Ansible
3 12 (3.26%) Grafana
3 12 (3.26%) Graylog
3 12 (3.26%) Terraform
4 3 (0.82%) Opscode Chef
5 2 (0.54%) Oozie
Vendors
1 28 (7.61%) Microsoft
1 28 (7.61%) Red Hat
2 15 (4.08%) Splunk
3 14 (3.80%) Sitecore
4 9 (2.45%) VMware
5 8 (2.17%) Adobe
5 8 (2.17%) Coverity
5 8 (2.17%) Google
6 6 (1.63%) Atlassian
6 6 (1.63%) Oracle
7 5 (1.36%) Zend
8 3 (0.82%) Cloudera
8 3 (0.82%) Hortonworks
8 3 (0.82%) Xamarin
9 2 (0.54%) MuleSoft
10 1 (0.27%) Twitter