The following table provides summary statistics for contract job vacancies advertised in Northern Ireland with a requirement for JSON skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JSON over the 3 months to 29 March 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.

JSON
UK / Northern Ireland
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 23 - 12
Rank change year-on-year - 0  
Contract jobs citing JSON 20 0 11
As % of all contract IT jobs advertised in Northern Ireland 8.81% - 9.40%
As % of the Libraries, Frameworks & Software Standards category 24.10% - 22.92%
Number of daily rates quoted 17 0 5
Median daily rate £375 - £375
UK excluding London median daily rate £411 £375 £350
% change year-on-year +9.66% +7.14%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £37.00 £55.00 £37.50
% change year-on-year -32.72% +46.66%  

JSON is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Northern Ireland with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Northern Ireland
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 83 33 48
As % of all contract IT job vacancies advertised in Northern Ireland 36.56% 26.40% 41.03%
Number of daily rates quoted 64 16 29
Median daily rate £381 £325 £350
Median daily rate % change year-on-year +17.30% -7.14%  
90% offered a daily rate of more than £350 £300 £215
10% offered a daily rate of more than £433 £400 £388
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 0 1 0
Median hourly rate - £13.50 -
UK excluding London median hourly rate £41.00 £38.00 £36.00
% change year-on-year +7.89% +5.55%  

JSON
Job Vacancy Trend in Northern Ireland

The job posting trend of jobs advertised in Northern Ireland citing JSON as a proportion of all contract or permanent IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for JSON in Northern Ireland

JSON
Contractor Daily Rate Trend in Northern Ireland

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing JSON in Northern Ireland.

Contractor daily rate trend for JSON in Northern Ireland

JSON
Contract Job Locations in Northern Ireland

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JSON within the Northern Ireland region over the 3 months to 29 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
County Antrim - 20 £375 - 1
JSON
UK

For the 6 months to 29 March 2017, IT contractor jobs citing JSON 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 Northern Ireland region with a requirement for JSON.

1 12 (60.00%) SQL
2 10 (50.00%) .NET
2 10 (50.00%) C#
2 10 (50.00%) SQL Server
2 10 (50.00%) Web Services
2 10 (50.00%) .NET Framework
3 9 (45.00%) WCF
3 9 (45.00%) WPF
3 9 (45.00%) WF
3 9 (45.00%) RESTful
3 9 (45.00%) Multithreading
3 9 (45.00%) Scrum
3 9 (45.00%) Agile Software Development
3 9 (45.00%) XML
3 9 (45.00%) OO
3 9 (45.00%) Sybase
3 9 (45.00%) ADO.NET
3 9 (45.00%) PL/SQL
3 9 (45.00%) Oracle
3 9 (45.00%) Memory Management
3 9 (45.00%) Relational Database
3 9 (45.00%) ASP.NET Web API
3 9 (45.00%) Algorithms
4 8 (40.00%) Oracle SOA Suite
4 8 (40.00%) Front Office
4 8 (40.00%) OOP
4 8 (40.00%) SOA
4 8 (40.00%) Banking
5 7 (35.00%) HTML
5 7 (35.00%) JavaScript

JSON
Co-occurring IT Skills in Northern Ireland 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 (40.00%) Oracle SOA Suite
2 1 (5.00%) IIS
Cloud Services
1 1 (5.00%) Amazon AWS
1 1 (5.00%) Amazon EC2
1 1 (5.00%) Amazon S3
1 1 (5.00%) Amazon SQS
1 1 (5.00%) AWS Lambda
1 1 (5.00%) GitHub
1 1 (5.00%) Route 53
Database & Business Intelligence
1 10 (50.00%) SQL Server
2 9 (45.00%) Relational Database
3 2 (10.00%) Big Data
4 1 (5.00%) Amazon DynamoDB
4 1 (5.00%) Amazon RDS
4 1 (5.00%) SQL Server 2008
Development Applications
1 2 (10.00%) Babel
1 2 (10.00%) Jasmine
1 2 (10.00%) Karma Test Runner
1 2 (10.00%) PhantomJS
2 1 (5.00%) Jenkins
2 1 (5.00%) Octopus Deploy
2 1 (5.00%) Visual Studio
General
1 8 (40.00%) Banking
1 8 (40.00%) Front Office
2 6 (30.00%) Finance
3 1 (5.00%) Investment Banking
Job Titles
1 18 (90.00%) Developer
2 9 (45.00%) C# Developer
3 6 (30.00%) JavaScript Developer
4 5 (25.00%) C# WPF Developer
4 5 (25.00%) WPF Developer
5 2 (10.00%) .NET Developer
5 2 (10.00%) Java Developer
5 2 (10.00%) Murex Developer
5 2 (10.00%) Python Software Engineer
5 2 (10.00%) Software Engineer
6 1 (5.00%) .NET Software Developer
6 1 (5.00%) C# .NET Developer
6 1 (5.00%) C# Software Developer
6 1 (5.00%) C# Web Developer
6 1 (5.00%) Murex MxML Developer
6 1 (5.00%) Senior Developer
6 1 (5.00%) Senior Java Developer
6 1 (5.00%) Senior Murex Developer
6 1 (5.00%) Software Developer
6 1 (5.00%) Web Developer
Libraries, Frameworks & Software Standards
1 10 (50.00%) .NET
1 10 (50.00%) .NET Framework
1 10 (50.00%) Web Services
2 9 (45.00%) ADO.NET
2 9 (45.00%) ASP.NET Web API
2 9 (45.00%) RESTful
2 9 (45.00%) WCF
2 9 (45.00%) WF
2 9 (45.00%) WPF
2 9 (45.00%) XML
3 7 (35.00%) AngularJS
3 7 (35.00%) CSS
3 7 (35.00%) HTML
3 7 (35.00%) Twitter Bootstrap
4 6 (30.00%) CSS3
4 6 (30.00%) HTML5
5 2 (10.00%) FpML
5 2 (10.00%) Hibernate
5 2 (10.00%) Murex MxML
5 2 (10.00%) Spring
Miscellaneous
1 9 (45.00%) Algorithms
2 1 (5.00%) Derivative
2 1 (5.00%) Smart Energy
Operating Systems
1 2 (10.00%) Linux
2 1 (5.00%) Unix
Processes & Methodologies
1 9 (45.00%) Agile Software Development
1 9 (45.00%) Memory Management
1 9 (45.00%) Multithreading
1 9 (45.00%) OO
1 9 (45.00%) Scrum
2 8 (40.00%) OOP
2 8 (40.00%) SOA
3 3 (15.00%) Software Engineering
4 2 (10.00%) Coaching
4 2 (10.00%) Continuous Integration
4 2 (10.00%) Migration
4 2 (10.00%) Process Management
4 2 (10.00%) Unit Testing
5 1 (5.00%) Don't repeat yourself (DRY)
5 1 (5.00%) OOD
5 1 (5.00%) Root Cause Analysis
5 1 (5.00%) SOLID
5 1 (5.00%) Workflow
5 1 (5.00%) Workflow Development
5 1 (5.00%) YAGNI
Programming Languages
1 12 (60.00%) SQL
2 10 (50.00%) C#
3 9 (45.00%) PL/SQL
4 7 (35.00%) JavaScript
5 4 (20.00%) Java
6 2 (10.00%) ECMAScript
6 2 (10.00%) ES6
6 2 (10.00%) Python
6 2 (10.00%) TypeScript
7 1 (5.00%) Perl
7 1 (5.00%) T-SQL
Quality Assurance & Compliance
1 6 (30.00%) QA
Vendors
1 9 (45.00%) Oracle
1 9 (45.00%) Sybase
2 6 (30.00%) Twitter
3 2 (10.00%) Murex