Period
to 19 December 2018

The following table provides summary statistics for contract job vacancies advertised in Edinburgh 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 December 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)
Scotland > Edinburgh
6 months to
19 Dec 2018
Same period 2017 Same period 2016
Rank 33 45 21
Rank change year-on-year +12 -24 +22
Contract jobs citing TDD 136 117 130
As % of all contract IT jobs advertised in Edinburgh 4.83% 3.94% 6.65%
As % of the Processes & Methodologies category 5.49% 4.56% 7.79%
Number of daily rates quoted 87 87 82
Edinburgh median daily rate £450 £410 £400
Median daily rate % change year-on-year +9.76% +2.50% +6.67%
10th Percentile £363 £287 £320
90th Percentile £544 £588 £538
Scotland median daily rate £438 £406 £400
% change year-on-year +7.69% +1.56% +6.67%
Number of hourly rates quoted 1 0 0
Edinburgh median hourly rate £35.00 - -
Scotland median hourly rate £35.00 £41.50 -
% change year-on-year -15.66% - -

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 Edinburgh with a requirement for process or methodology skills.

All Process and Methodology Skills
Edinburgh
Contract vacancies with a requirement for process or methodology skills 2,478 2,566 1,669
As % of all contract IT jobs advertised in Edinburgh 88.03% 86.40% 85.33%
Number of daily rates quoted 1,245 1,491 984
Edinburgh median daily rate £425 £400 £400
Median daily rate % change year-on-year +6.25% - +2.56%
10th Percentile £279 £263 £263
90th Percentile £575 £563 £525
Scotland median daily rate £400 £390 £370
% change year-on-year +2.56% +5.41% -1.33%
Number of hourly rates quoted 32 20 31
Edinburgh median hourly rate £21.25 £21.00 £25.00
Median hourly rate % change year-on-year +1.19% -16.00% +51.52%
10th Percentile £11.02 £11.24 £14.25
90th Percentile £44.48 £35.00 £52.00
Scotland median hourly rate £25.00 £23.25 £21.00
% change year-on-year +7.53% +10.71% +10.41%

TDD
Job Vacancy Trend in Edinburgh

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

Job vacancy trend for TDD in Edinburgh

TDD
Contractor Daily Rate Trend in Edinburgh

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

Contractor daily rate trend for TDD in Edinburgh

TDD
Contractor Daily Rate Histogram in Edinburgh

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

Contractor daily rate histogram for TDD in Edinburgh

TDD
Contractor Hourly Rate Trend in Edinburgh

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in Edinburgh.

Contractor hourly rate trend for TDD in Edinburgh

For the 6 months to 19 December 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 Edinburgh region with a requirement for TDD.

1 95 (69.85%) Agile Software Development
2 90 (66.18%) Java
3 72 (52.94%) BDD
4 66 (48.53%) JavaScript
5 63 (46.32%) Spring
6 58 (42.65%) Scrum
7 52 (38.24%) CSS
8 51 (37.50%) HTML
9 50 (36.76%) Continuous Integration
10 36 (26.47%) Git (software)
10 36 (26.47%) Test Automation
11 34 (25.00%) React
11 34 (25.00%) Python
12 30 (22.06%) HTML5
13 29 (21.32%) Jenkins
13 29 (21.32%) Linux
14 28 (20.59%) Front End Development
15 26 (19.12%) Apache Camel
15 26 (19.12%) DevOps
15 26 (19.12%) Microservices
15 26 (19.12%) Finance
16 25 (18.38%) Docker
17 24 (17.65%) SQL
17 24 (17.65%) Integration Testing
18 23 (16.91%) JUnit
18 23 (16.91%) REST
19 22 (16.18%) Mentoring
20 20 (14.71%) Kanban
21 19 (13.97%) MVC
21 19 (13.97%) Amazon AWS

TDD
Co-occurring IT Skills in Edinburgh 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 8 (5.88%) JBoss
2 5 (3.68%) Confluence
3 2 (1.47%) Apache Spark
3 2 (1.47%) Cloud Foundry
3 2 (1.47%) Elasticsearch
3 2 (1.47%) NServiceBus
4 1 (0.74%) Apache
4 1 (0.74%) CMS
4 1 (0.74%) WebSphere
Business Applications
1 1 (0.74%) Markit EDM
Cloud Services
1 19 (13.97%) Amazon AWS
2 11 (8.09%) Yarn
3 9 (6.62%) npm
4 6 (4.41%) OpenShift
5 3 (2.21%) AWS CloudFormation
5 3 (2.21%) AWS Lambda
5 3 (2.21%) Serverless
6 1 (0.74%) BrowserStack
6 1 (0.74%) Microsoft Azure
6 1 (0.74%) NuGet
6 1 (0.74%) Sauce Labs
Communications & Networking
1 9 (6.62%) HTTP
Database & Business Intelligence
1 18 (13.24%) SQL Server
2 17 (12.50%) PostgreSQL
3 14 (10.29%) MongoDB
4 9 (6.62%) NoSQL
5 3 (2.21%) Big Data
5 3 (2.21%) Redis
5 3 (2.21%) SQL Server 2014
6 2 (1.47%) Amazon Athena
6 2 (1.47%) Apache Hive
6 2 (1.47%) Hadoop
6 2 (1.47%) MySQL
6 2 (1.47%) RDBMS
6 2 (1.47%) Relational Database
7 1 (0.74%) Oracle Database
Development Applications
1 36 (26.47%) Git (software)
2 29 (21.32%) Jenkins
3 23 (16.91%) JUnit
4 16 (11.76%) JIRA
5 12 (8.82%) Subversion
6 11 (8.09%) Selenium
7 9 (6.62%) Babel
7 9 (6.62%) Maven
7 9 (6.62%) webpack
8 8 (5.88%) Cucumber
8 8 (5.88%) Mocha
9 6 (4.41%) Hudson
10 4 (2.94%) Team Foundation Server
10 4 (2.94%) TeamCity
10 4 (2.94%) Visual Studio
11 3 (2.21%) Bitbucket
11 3 (2.21%) Protractor
12 2 (1.47%) Gradle
12 2 (1.47%) Liquibase
13 1 (0.74%) JSUnit
General
1 26 (19.12%) Finance
2 18 (13.24%) Banking
3 3 (2.21%) Front Office
3 3 (2.21%) Games
3 3 (2.21%) Investment Banking
Job Titles
1 106 (77.94%) Developer
2 44 (32.35%) Senior Developer
3 40 (29.41%) Java Developer
4 19 (13.97%) JavaScript Developer
5 17 (12.50%) Front End Developer (Client-Side Developer)
6 14 (10.29%) React Developer
7 11 (8.09%) Senior JavaScript Developer
8 10 (7.35%) Full Stack Developer
8 10 (7.35%) Senior Front-End Developer
9 9 (6.62%) Senior Java Developer
10 7 (5.15%) Software Developer
11 6 (4.41%) AWS Engineer
11 6 (4.41%) Node.js Developer
12 5 (3.68%) AWS DevOps
12 5 (3.68%) AWS DevOps Engineer
12 5 (3.68%) DevOps Engineer
12 5 (3.68%) Scrum Master
13 4 (2.94%) Agile Developer
13 4 (2.94%) Architect
13 4 (2.94%) Automation Engineer
Libraries, Frameworks & Software Standards
1 63 (46.32%) Spring
2 52 (38.24%) CSS
3 51 (37.50%) HTML
4 34 (25.00%) React
5 30 (22.06%) HTML5
6 26 (19.12%) Apache Camel
7 23 (16.91%) REST
8 18 (13.24%) AngularJS
9 15 (11.03%) .NET
9 15 (11.03%) Node.js
10 14 (10.29%) jQuery
10 14 (10.29%) RESTful
11 13 (9.56%) Redux
12 11 (8.09%) Hibernate
12 11 (8.09%) Web Services
13 10 (7.35%) JSON
13 10 (7.35%) Sass
14 9 (6.62%) gRPC
14 9 (6.62%) Thymeleaf
15 8 (5.88%) Enzyme
Miscellaneous
1 11 (8.09%) User Experience
2 7 (5.15%) Fintech
3 5 (3.68%) Cloud Native
4 4 (2.94%) Data Structures
4 4 (2.94%) Greenfield Project
4 4 (2.94%) Public Cloud
5 3 (2.21%) Equities
5 3 (2.21%) Self-Motivation
6 1 (0.74%) Algorithms
6 1 (0.74%) Analytical Skills
6 1 (0.74%) DataPower
6 1 (0.74%) Enterprise Software
Operating Systems
1 29 (21.32%) Linux
2 3 (2.21%) Unix
3 2 (1.47%) Android
3 2 (1.47%) Windows
3 2 (1.47%) Windows Server
Processes & Methodologies
1 95 (69.85%) Agile Software Development
2 72 (52.94%) BDD
3 58 (42.65%) Scrum
4 50 (36.76%) Continuous Integration
5 36 (26.47%) Test Automation
6 28 (20.59%) Front End Development
7 26 (19.12%) DevOps
7 26 (19.12%) Microservices
8 24 (17.65%) Integration Testing
9 22 (16.18%) Mentoring
10 20 (14.71%) Kanban
11 19 (13.97%) MVC
12 17 (12.50%) Coaching
13 16 (11.76%) Software Engineering
14 15 (11.03%) OO
15 13 (9.56%) Data Modelling
15 13 (9.56%) Unit Testing
16 12 (8.82%) OOA/OOD
16 12 (8.82%) Refactoring
17 7 (5.15%) Analytics
Programming Languages
1 90 (66.18%) Java
2 66 (48.53%) JavaScript
3 34 (25.00%) Python
4 24 (17.65%) SQL
5 15 (11.03%) C#
5 15 (11.03%) Java 8
6 10 (7.35%) ES6
7 9 (6.62%) Perl
8 7 (5.15%) Ruby
9 3 (2.21%) Java 9
9 3 (2.21%) TypeScript
10 1 (0.74%) Kotlin
10 1 (0.74%) VB.NET
Qualifications
1 14 (10.29%) Security Cleared
2 12 (8.82%) SC Cleared
3 11 (8.09%) Degree
4 1 (0.74%) ISEB
Quality Assurance & Compliance
1 4 (2.94%) QA
2 2 (1.47%) Disclosure Scotland
System Software
1 25 (18.38%) Docker
2 1 (0.74%) VMware Infrastructure
Systems Management
1 13 (9.56%) Ansible
2 12 (8.82%) Kubernetes
3 5 (3.68%) Opscode Chef
4 3 (2.21%) Puppet
5 2 (1.47%) Kibana
5 2 (1.47%) logstash
5 2 (1.47%) Single Sign-On
Vendors
1 16 (11.76%) Oracle
2 4 (2.94%) Atlassian
2 4 (2.94%) VMware
3 3 (2.21%) Microsoft
4 2 (1.47%) RedGate
5 1 (0.74%) Charles River
5 1 (0.74%) IBM
5 1 (0.74%) TIBCO
5 1 (0.74%) TOWER Software