Period
to 23 September 2018

The following table provides summary statistics for permanent job vacancies advertised in Hertfordshire with a requirement for API Development skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited API Development over the 6 months to 23 September 2018 with a comparison to the same period in the previous 2 years.

API Development
East of England > Hertfordshire
6 months to
23 Sep 2018
Same period 2017 Same period 2016
Rank 197 202 220
Rank change year-on-year +5 +18 +32
Permanent jobs citing API Development 4 4 2
As % of all permanent IT jobs advertised in Hertfordshire 0.098% 0.098% 0.045%
As % of the Processes & Methodologies category 0.11% 0.11% 0.050%
Number of salaries quoted 4 3 2
Hertfordshire median annual salary £57,500 £65,000 £50,000
Median salary % change year-on-year -11.54% +30.00% +5.26%
10th Percentile £41,125 £58,500 £47,500
90th Percentile £60,000 £69,500 £52,500
East of England median annual salary £54,000 £42,500 £50,000
% change year-on-year +27.06% -15.00% +5.26%

API Development 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 Hertfordshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Hertfordshire
Permanent vacancies with a requirement for process or methodology skills 3,680 3,647 4,013
As % of all permanent IT jobs advertised in Hertfordshire 89.78% 88.97% 89.50%
Number of salaries quoted 2,879 3,102 3,302
Hertfordshire median annual salary £50,000 £47,000 £47,500
Median salary % change year-on-year +6.38% -1.05% +5.56%
10th Percentile £27,500 £27,000 £27,500
90th Percentile £75,000 £71,250 £71,250
East of England median annual salary £47,500 £45,000 £45,000
% change year-on-year +5.56% - +1.12%

API Development
Job Vacancy Trend in Hertfordshire

Job postings citing API Development as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for API Development in Hertfordshire

API Development
Salary Trend in Hertfordshire

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing API Development in Hertfordshire.

Salary trend for API Development in Hertfordshire

API Development
Salary Histogram in Hertfordshire

The salary distribution of IT jobs citing API Development in Hertfordshire over the 6 months to 23 September 2018.

Salary histogram for API Development in Hertfordshire

API Development
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing API Development within the Hertfordshire region over the 6 months to 23 September 2018. 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Hemel Hempstead +7 3 £60,000 -7.69%
Hitchin - 1 £37,500 -
API Development
East of England

For the 6 months to 23 September 2018, IT jobs citing API Development 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 Hertfordshire region with a requirement for API Development.

1 4 (100.00%) C#
1 4 (100.00%) .NET
1 4 (100.00%) Visual Studio
1 4 (100.00%) OO
1 4 (100.00%) Agile Software Development
1 4 (100.00%) TDD
1 4 (100.00%) .NET Framework
1 4 (100.00%) WCF
1 4 (100.00%) Unit Testing
1 4 (100.00%) Continuous Integration
1 4 (100.00%) Team Foundation Server
1 4 (100.00%) ASP.NET Web API
2 3 (75.00%) Inversion of Control
2 3 (75.00%) .NET Core
2 3 (75.00%) Self-Motivation
2 3 (75.00%) Microsoft
2 3 (75.00%) Finance
2 3 (75.00%) Scrum
2 3 (75.00%) SOAP
2 3 (75.00%) Web Services
2 3 (75.00%) OOA/OOD
2 3 (75.00%) SQL Server
3 1 (25.00%) HTML
3 1 (25.00%) JavaScript
3 1 (25.00%) ASP.NET
3 1 (25.00%) CSS
3 1 (25.00%) MVC
3 1 (25.00%) XAML
3 1 (25.00%) EPoS
3 1 (25.00%) Retail

API Development
Co-occurring IT Skills in Hertfordshire 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:

Database & Business Intelligence
1 3 (75.00%) SQL Server
Development Applications
1 4 (100.00%) Team Foundation Server
1 4 (100.00%) Visual Studio
2 1 (25.00%) Jenkins
2 1 (25.00%) Visual Studio Team System
General
1 3 (75.00%) Finance
2 1 (25.00%) Retail
Job Titles
1 4 (100.00%) C# Developer
1 4 (100.00%) Developer
2 3 (75.00%) .NET Developer
2 3 (75.00%) .NET Software Developer
2 3 (75.00%) .NET Web Developer
2 3 (75.00%) C# .NET Developer
2 3 (75.00%) C# Software Developer
2 3 (75.00%) C# Web Developer
2 3 (75.00%) Software Developer
2 3 (75.00%) Web Developer
3 1 (25.00%) Angular Developer
3 1 (25.00%) Full Stack Developer
3 1 (25.00%) Xamarin Developer
Libraries, Frameworks & Software Standards
1 4 (100.00%) .NET
1 4 (100.00%) .NET Framework
1 4 (100.00%) ASP.NET Web API
1 4 (100.00%) WCF
2 3 (75.00%) .NET Core
2 3 (75.00%) SOAP
2 3 (75.00%) Web Services
3 1 (25.00%) Ajax
3 1 (25.00%) AngularJS
3 1 (25.00%) ASP.NET
3 1 (25.00%) ASP.NET MVC
3 1 (25.00%) CSS
3 1 (25.00%) HTML
3 1 (25.00%) jQuery
3 1 (25.00%) LINQ
3 1 (25.00%) WPF
Miscellaneous
1 3 (75.00%) Self-Motivation
2 1 (25.00%) EPoS
2 1 (25.00%) Greenfield Project
Processes & Methodologies
1 4 (100.00%) Agile Software Development
1 4 (100.00%) Continuous Integration
1 4 (100.00%) OO
1 4 (100.00%) TDD
1 4 (100.00%) Unit Testing
2 3 (75.00%) Inversion of Control
2 3 (75.00%) OOA/OOD
2 3 (75.00%) Scrum
3 1 (25.00%) Asynchronous Programming
3 1 (25.00%) Mobile Development
3 1 (25.00%) MVC
3 1 (25.00%) MVVM
3 1 (25.00%) Test Automation
Programming Languages
1 4 (100.00%) C#
2 1 (25.00%) JavaScript
2 1 (25.00%) XAML
Vendors
1 3 (75.00%) Microsoft
2 1 (25.00%) Xamarin