Period
to 18 November 2017

The following table provides summary statistics for contract job vacancies advertised in Surrey 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 18 November 2017 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)
South East > Surrey
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 43 50 38
Rank change year-on-year +7 -12 +59
Contract jobs citing TDD 115 88 130
As % of all contract IT jobs advertised in Surrey 4.17% 3.77% 4.67%
As % of the Processes & Methodologies category 4.99% 4.51% 5.81%
Number of daily rates quoted 98 65 91
Surrey median daily rate £494 £450 £413
Median daily rate % change year-on-year +9.72% +9.09% +26.92%
10th Percentile £321 £353 £320
90th Percentile £558 £581 £475
South East median daily rate £425 £442 £400
% change year-on-year -3.74% +10.38% +6.67%
Number of hourly rates quoted 0 0 1
Surrey median hourly rate - - £40.00
South East median hourly rate £45.00 £36.50 £50.00
% change year-on-year +23.29% -27.00% +25.00%

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 Surrey with a requirement for process or methodology skills.

All Process and Methodology Skills
Surrey
Contract vacancies with a requirement for process or methodology skills 2305 1952 2237
As % of all contract IT jobs advertised in Surrey 83.54% 83.63% 80.29%
Number of daily rates quoted 1647 1292 1354
Surrey median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% +6.67%
10th Percentile £300 £263 £285
90th Percentile £578 £575 £538
South East median daily rate £425 £400 £391
% change year-on-year +6.25% +2.43% +4.13%
Number of hourly rates quoted 64 84 52
Surrey median hourly rate £30.00 £27.50 £31.25
Median hourly rate % change year-on-year +9.09% -12.00% +4.17%
10th Percentile £14.00 £12.70 £12.86
90th Percentile £48.75 £45.06 £52.13
South East median hourly rate £23.07 £26.50 £26.09
% change year-on-year -12.94% +1.57% +49.09%

TDD
Job Vacancy Trend in Surrey

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

Job vacancy trend for TDD in Surrey

TDD
Contractor Daily Rate Trend in Surrey

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

Contractor daily rate trend for TDD in Surrey

TDD
Contractor Daily Rate Histogram in Surrey

The daily rate distribution of IT jobs citing TDD in Surrey over the 6 months to 18 November 2017.

Contractor daily rate histogram for TDD in Surrey

TDD
Contractor Hourly Rate Trend in Surrey

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

Contractor hourly rate trend for TDD in Surrey

TDD
Contract Job Locations in Surrey

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Surrey region over the 6 months to 18 November 2017. 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
Reigate -19 16 £450 - 1
Guildford +2 15 £500 -4.76% 3
Redhill -1 10 £425 +41.67%
Camberley +7 8 £531 -3.41%
Staines -3 6 £475 -5.00%
Leatherhead -4 3 £365 -16.57% 3
Woking -18 2 £431 +13.49% 3
Sunbury-on-Thames - 2 £400 -
Cobham - 1 £250 -
TDD
South East

For the 6 months to 18 November 2017, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Surrey region with a requirement for TDD.

1 99 (86.09%) Agile Software Development
2 46 (40.00%) Java
2 46 (40.00%) BDD
3 42 (36.52%) C#
4 39 (33.91%) .NET
5 36 (31.30%) SQL
6 33 (28.70%) Web Services
7 31 (26.96%) JavaScript
8 28 (24.35%) REST
8 28 (24.35%) AngularJS
9 27 (23.48%) Spring
10 26 (22.61%) Finance
11 25 (21.74%) Continuous Integration
12 24 (20.87%) HTML
12 24 (20.87%) CSS
12 24 (20.87%) Linux
13 23 (20.00%) MVC
14 22 (19.13%) Scrum
14 22 (19.13%) ASP.NET
14 22 (19.13%) RESTful
15 21 (18.26%) Amazon AWS
15 21 (18.26%) Test Automation
16 20 (17.39%) Microsoft Azure
16 20 (17.39%) OO
16 20 (17.39%) ASP.NET Web API
17 19 (16.52%) Git (software)
17 19 (16.52%) NoSQL
18 18 (15.65%) SOLID
19 17 (14.78%) Jenkins
19 17 (14.78%) Unit Testing

TDD
Co-occurring IT Skills in Surrey 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 10 (8.70%) Apache
1 10 (8.70%) Apache Spark
2 9 (7.83%) OpenStack
3 7 (6.09%) WebLogic
4 6 (5.22%) Tomcat
4 6 (5.22%) WebSphere
5 3 (2.61%) NServiceBus
6 2 (1.74%) Cloud Foundry
6 2 (1.74%) Confluence
6 2 (1.74%) Elasticsearch
7 1 (0.87%) CMS
7 1 (0.87%) GemFire
7 1 (0.87%) JBoss
Applications
1 3 (2.61%) Microsoft Office
2 1 (0.87%) Photoshop
Business Applications
1 1 (0.87%) Dynamics CRM
Cloud Services
1 21 (18.26%) Amazon AWS
2 20 (17.39%) Microsoft Azure
3 5 (4.35%) SaaS
4 4 (3.48%) GitHub
5 1 (0.87%) Amazon EC2
5 1 (0.87%) AWS CloudFormation
5 1 (0.87%) AWS Lambda
5 1 (0.87%) Dynamics 365
5 1 (0.87%) Google Cloud Platform
5 1 (0.87%) IaaS
5 1 (0.87%) Office 365
5 1 (0.87%) Serverless
Communications & Networking
1 2 (1.74%) SSH
2 1 (0.87%) Internet
2 1 (0.87%) TCP/IP
Database & Business Intelligence
1 19 (16.52%) NoSQL
2 17 (14.78%) SQL Server
3 12 (10.43%) Hadoop
3 12 (10.43%) MySQL
4 11 (9.57%) Big Data
5 10 (8.70%) PostgreSQL
6 6 (5.22%) Relational Database
7 3 (2.61%) DB2
7 3 (2.61%) HBase
8 2 (1.74%) Apache Cassandra
8 2 (1.74%) MongoDB
8 2 (1.74%) Redis
8 2 (1.74%) SQL Server 2008
9 1 (0.87%) Data Warehouse
9 1 (0.87%) DataStax
9 1 (0.87%) JasperReports
9 1 (0.87%) Power BI
9 1 (0.87%) SQL Server 2014
9 1 (0.87%) SQL Server Analysis Services
Development Applications
1 19 (16.52%) Git (software)
2 17 (14.78%) Jenkins
3 9 (7.83%) NUnit
3 9 (7.83%) Selenium
4 8 (6.96%) MSTest
5 7 (6.09%) GoogleTest
5 7 (6.09%) Team Foundation Server
6 5 (4.35%) Travis CI
7 4 (3.48%) Eclipse
7 4 (3.48%) JIRA
7 4 (3.48%) SpecFlow
8 3 (2.61%) JSUnit
8 3 (2.61%) PostCSS
8 3 (2.61%) Visual Studio
8 3 (2.61%) WebDriver
9 2 (1.74%) Cucumber
9 2 (1.74%) Emacs
9 2 (1.74%) JUnit
9 2 (1.74%) TeamCity
9 2 (1.74%) Visual Studio Team System
General
1 26 (22.61%) Finance
2 5 (4.35%) Banking
3 4 (3.48%) Investment Banking
4 2 (1.74%) Financial Institution
5 1 (0.87%) Automotive
5 1 (0.87%) Back Office
5 1 (0.87%) Games
5 1 (0.87%) Marketing
5 1 (0.87%) Publishing
5 1 (0.87%) Retail
Job Titles
1 98 (85.22%) Developer
2 39 (33.91%) Java Developer
3 34 (29.57%) .NET Developer
4 28 (24.35%) C# Developer
5 22 (19.13%) C# .NET Developer
5 22 (19.13%) Senior Developer
6 11 (9.57%) Agile .NET Developer
6 11 (9.57%) Agile Developer
7 8 (6.96%) Senior C# Developer
8 7 (6.09%) Agile C# Developer
8 7 (6.09%) Angular Developer
8 7 (6.09%) ASP.NET Developer
8 7 (6.09%) C# ASP.NET Developer
8 7 (6.09%) C++ Developer
8 7 (6.09%) Full Stack Developer
8 7 (6.09%) Senior .NET Developer
8 7 (6.09%) Senior C++ Developer
9 6 (5.22%) Front End Developer (Client-Side Developer)
9 6 (5.22%) Senior C# .NET Developer
10 5 (4.35%) Senior Agile Developer
Libraries, Frameworks & Software Standards
1 39 (33.91%) .NET
2 33 (28.70%) Web Services
3 28 (24.35%) AngularJS
3 28 (24.35%) REST
4 27 (23.48%) Spring
5 24 (20.87%) CSS
5 24 (20.87%) HTML
6 22 (19.13%) ASP.NET
6 22 (19.13%) RESTful
7 20 (17.39%) ASP.NET Web API
8 16 (13.91%) ASP.NET MVC
8 16 (13.91%) Kafka
9 15 (13.04%) RabbitMQ
10 14 (12.17%) JSON
10 14 (12.17%) Spring Boot
11 11 (9.57%) J2EE
12 10 (8.70%) .NET Framework
12 10 (8.70%) HTML5
12 10 (8.70%) Middleware
12 10 (8.70%) NHibernate
Miscellaneous
1 15 (13.04%) Greenfield Project
2 5 (4.35%) Computer Science
3 3 (2.61%) Fintech
3 3 (2.61%) User Experience
4 2 (1.74%) Algorithms
4 2 (1.74%) Analytical Skills
4 2 (1.74%) Data Structures
4 2 (1.74%) Enterprise Cloud
4 2 (1.74%) Mobile App
4 2 (1.74%) Spread Betting
5 1 (0.87%) Cloud Native
5 1 (0.87%) Foreign Exchange (FX)
5 1 (0.87%) Linux Command Line
5 1 (0.87%) Public Cloud
Operating Systems
1 24 (20.87%) Linux
2 10 (8.70%) Unix
3 3 (2.61%) Windows
4 1 (0.87%) Android
4 1 (0.87%) Apple iOS
4 1 (0.87%) Mac OS X
Processes & Methodologies
1 99 (86.09%) Agile Software Development
2 46 (40.00%) BDD
3 25 (21.74%) Continuous Integration
4 23 (20.00%) MVC
5 22 (19.13%) Scrum
6 21 (18.26%) Test Automation
7 20 (17.39%) OO
8 18 (15.65%) SOLID
9 17 (14.78%) Unit Testing
10 16 (13.91%) DevOps
11 15 (13.04%) Software Engineering
12 13 (11.30%) SOA
13 9 (7.83%) Front End Development
13 9 (7.83%) Kanban
13 9 (7.83%) System Testing
14 8 (6.96%) Microservices
14 8 (6.96%) Software Architecture
15 7 (6.09%) Dependency Injection
16 6 (5.22%) E-Commerce
16 6 (5.22%) Web Application Development
Programming Languages
1 46 (40.00%) Java
2 42 (36.52%) C#
3 36 (31.30%) SQL
4 31 (26.96%) JavaScript
5 17 (14.78%) Python
6 9 (7.83%) Ruby
7 8 (6.96%) T-SQL
8 7 (6.09%) C++
9 6 (5.22%) Go
10 5 (4.35%) VB.NET
11 4 (3.48%) TypeScript
12 3 (2.61%) Bash Shell
12 3 (2.61%) ECMAScript
12 3 (2.61%) Perl
12 3 (2.61%) PHP
13 2 (1.74%) PowerShell
14 1 (0.87%) Apple Swift
14 1 (0.87%) Objective-C
14 1 (0.87%) Scala
14 1 (0.87%) VBScript
Qualifications
1 7 (6.09%) Degree
2 4 (3.48%) Computer Science Degree
3 2 (1.74%) ISTQB
3 2 (1.74%) ISTQB Foundation Certification
3 2 (1.74%) SC Cleared
3 2 (1.74%) Security Cleared
Quality Assurance & Compliance
1 6 (5.22%) QA
2 1 (0.87%) GCP
System Software
1 10 (8.70%) Apache ZooKeeper
2 5 (4.35%) Docker
3 3 (2.61%) Active Directory
3 3 (2.61%) HDFS
4 2 (1.74%) zsh
Systems Management
1 14 (12.17%) Ansible
2 12 (10.43%) Puppet
3 10 (8.70%) Hadoop YARN
3 10 (8.70%) Opscode Chef
4 4 (3.48%) Terraform
5 2 (1.74%) Kibana
5 2 (1.74%) logstash
6 1 (0.87%) Kubernetes
Vendors
1 17 (14.78%) Oracle
2 5 (4.35%) Microsoft
3 1 (0.87%) Adobe
3 1 (0.87%) Hortonworks
3 1 (0.87%) ServiceNow
3 1 (0.87%) Snow