Period
to 19 March 2019

The following table provides summary statistics for permanent job vacancies advertised in Leatherhead with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 19 March 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Surrey > Leatherhead
6 months to
19 Mar 2019
Same period 2018 Same period 2017
Rank 13 14 13
Rank change year-on-year +1 -1 +31
Permanent jobs citing TDD 62 56 70
As % of all permanent IT jobs advertised in Leatherhead 16.67% 13.05% 17.28%
As % of the Processes & Methodologies category 19.50% 14.81% 20.35%
Number of salaries quoted 56 56 68
Leatherhead median annual salary £55,000 £50,000 £42,500
Median salary % change year-on-year +10.00% +17.65% -22.73%
10th Percentile £41,500 £26,250 £25,000
90th Percentile £80,000 £66,250 £55,300
Surrey median annual salary £55,000 £47,500 £50,000
% change year-on-year +15.79% -5.00% -8.26%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Leatherhead with a requirement for process or methodology skills.

All Process and Methodology Skills
Leatherhead
Permanent vacancies with a requirement for process or methodology skills 318 378 344
As % of all permanent IT jobs advertised in Leatherhead 85.48% 88.11% 84.94%
Number of salaries quoted 257 342 320
Leatherhead median annual salary £49,000 £50,000 £41,000
Median salary % change year-on-year -2.00% +21.95% -13.68%
10th Percentile £25,000 £26,250 £25,000
90th Percentile £67,500 £65,000 £56,025
Surrey median annual salary £50,000 £48,500 £47,500
% change year-on-year +3.09% +2.11% +5.56%

TDD
Job Vacancy Trend in Leatherhead

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

Job vacancy trend for TDD in Leatherhead

TDD
Salary Trend in Leatherhead

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing TDD in Leatherhead.

Salary trend for TDD in Leatherhead

TDD
Salary Histogram in Leatherhead

The salary distribution of IT jobs citing TDD in Leatherhead over the 6 months to 19 March 2019.

Salary histogram for TDD in Leatherhead

For the 6 months to 19 March 2019, IT 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 permanent job ads across the Leatherhead region with a requirement for TDD.

1 50 (80.65%) C#
2 41 (66.13%) .NET
3 39 (62.90%) Visual Studio
4 36 (58.06%) SOLID
5 32 (51.61%) SQL Server
6 28 (45.16%) SQL
7 26 (41.94%) MVC
7 26 (41.94%) Scrum
7 26 (41.94%) WCF
8 25 (40.32%) Agile Software Development
8 25 (40.32%) Microsoft
9 24 (38.71%) ASP.NET
9 24 (38.71%) WPF
9 24 (38.71%) Team Foundation Server
10 22 (35.48%) SDLC
11 20 (32.26%) Customer-Centricity
11 20 (32.26%) ASP.NET MVC
12 19 (30.65%) Microsoft Azure
12 19 (30.65%) Web Services
13 18 (29.03%) Java
14 17 (27.42%) Greenfield Project
15 16 (25.81%) .NET Framework
15 16 (25.81%) Windows
15 16 (25.81%) Linux
16 15 (24.19%) Security Cleared
17 14 (22.58%) Microservices
18 13 (20.97%) Mentoring
18 13 (20.97%) Test Automation
18 13 (20.97%) Domain-Driven Design
18 13 (20.97%) Dependency Injection

TDD
Co-occurring IT Skills in Leatherhead 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 7 (11.29%) Apache Spark
2 4 (6.45%) IIS
Cloud Services
1 19 (30.65%) Microsoft Azure
2 13 (20.97%) SaaS
3 8 (12.90%) Amazon AWS
Communications & Networking
1 9 (14.52%) HTTP
Database & Business Intelligence
1 32 (51.61%) SQL Server
2 9 (14.52%) VoltDB
3 5 (8.06%) Big Data
3 5 (8.06%) Hadoop
4 1 (1.61%) MongoDB
Development Applications
1 39 (62.90%) Visual Studio
2 24 (38.71%) Team Foundation Server
3 4 (6.45%) Git (software)
General
1 4 (6.45%) Military
2 2 (3.23%) Telecoms
Job Titles
1 56 (90.32%) Developer
2 31 (50.00%) Senior Developer
3 26 (41.94%) .NET Developer
4 17 (27.42%) Senior .NET Developer
5 11 (17.74%) C# Developer
6 10 (16.13%) Java Developer
6 10 (16.13%) Senior Java Developer
7 7 (11.29%) Lead .NET Developer
7 7 (11.29%) Lead Developer
7 7 (11.29%) Software Developer
8 4 (6.45%) .NET Development Team Leader
8 4 (6.45%) .NET Team Leader
8 4 (6.45%) Development Team Leader
8 4 (6.45%) Scrum Master
8 4 (6.45%) Senior Software Developer
8 4 (6.45%) Team Leader
9 3 (4.84%) C++ Developer
9 3 (4.84%) C++ Software Developer
10 2 (3.23%) Angular Developer
10 2 (3.23%) Data Science Developer
Libraries, Frameworks & Software Standards
1 41 (66.13%) .NET
2 26 (41.94%) WCF
3 24 (38.71%) ASP.NET
3 24 (38.71%) WPF
4 20 (32.26%) ASP.NET MVC
5 19 (30.65%) Web Services
6 16 (25.81%) .NET Framework
7 13 (20.97%) AngularJS
8 10 (16.13%) Guava
9 9 (14.52%) JDBC
9 9 (14.52%) JSON
9 9 (14.52%) Spring
9 9 (14.52%) XML
10 7 (11.29%) CSS
10 7 (11.29%) HTML
11 6 (9.68%) CGI
11 6 (9.68%) jQuery
12 5 (8.06%) REST
13 4 (6.45%) Entity Framework
13 4 (6.45%) WinForms
Miscellaneous
1 17 (27.42%) Greenfield Project
2 9 (14.52%) Clustering
2 9 (14.52%) PKI
3 4 (6.45%) Analytical Skills
4 2 (3.23%) Smart Meter
5 1 (1.61%) Fintech
Operating Systems
1 16 (25.81%) Linux
1 16 (25.81%) Windows
Processes & Methodologies
1 36 (58.06%) SOLID
2 26 (41.94%) MVC
2 26 (41.94%) Scrum
3 25 (40.32%) Agile Software Development
4 22 (35.48%) SDLC
5 20 (32.26%) Customer-Centricity
6 14 (22.58%) Microservices
7 13 (20.97%) Dependency Injection
7 13 (20.97%) Domain-Driven Design
7 13 (20.97%) Mentoring
7 13 (20.97%) Test Automation
8 12 (19.35%) CQRS
8 12 (19.35%) Data Science
9 11 (17.74%) BDD
10 10 (16.13%) DevOps
10 10 (16.13%) Domain Models
10 10 (16.13%) Front End Development
10 10 (16.13%) Multithreaded Programming
10 10 (16.13%) Multithreading
11 9 (14.52%) Waterfall
Programming Languages
1 50 (80.65%) C#
2 28 (45.16%) SQL
3 18 (29.03%) Java
4 12 (19.35%) Python
5 10 (16.13%) Java 8
6 9 (14.52%) PL/SQL
7 8 (12.90%) C++
7 8 (12.90%) JavaScript
8 1 (1.61%) TypeScript
Qualifications
1 15 (24.19%) Security Cleared
2 11 (17.74%) SC Cleared
Systems Management
1 4 (6.45%) Ansible
1 4 (6.45%) Opscode Chef
Vendors
1 25 (40.32%) Microsoft
2 9 (14.52%) Oracle
3 4 (6.45%) Atlassian
3 4 (6.45%) Cloudera