The following table provides summary statistics for contract job vacancies advertised in Essex 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
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 25 34 45
Rank change year-on-year +9 +11  
Contract jobs citing JSON 35 19 11
As % of all contract IT jobs advertised in Essex 8.58% 4.24% 2.42%
As % of the Libraries, Frameworks & Software Standards category 23.97% 16.10% 7.10%
Number of daily rates quoted 21 1 3
Median daily rate £275 £400 £320
Median daily rate % change year-on-year -31.25% +25.00%  
90% offered a daily rate of more than £265 £400 £284
10% offered a daily rate of more than £475 £400 £444
UK excluding London median daily rate £411 £375 £350
% change year-on-year +9.66% +7.14%  
Number of hourly rates quoted 7 0 0
Median hourly rate £36.00 - -
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 Essex with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Essex
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 146 118 155
As % of all contract IT job vacancies advertised in Essex 35.78% 26.34% 34.14%
Number of daily rates quoted 110 65 84
Median daily rate £425 £365 £400
Median daily rate % change year-on-year +16.43% -8.75%  
90% offered a daily rate of more than £265 £225 £225
10% offered a daily rate of more than £525 £450 £450
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 9 5 19
Median hourly rate £37.00 £36.50 £36.00
Median hourly rate % change year-on-year +1.36% +1.38%  
90% offered a hourly rate of more than £31.00 £36.50 £23.00
10% offered a hourly rate of more than £52.00 £54.70 £40.00
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 Essex

The job posting trend of jobs advertised in Essex 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 Essex

JSON
Contractor Daily Rate Trend in Essex

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

Contractor daily rate trend for JSON in Essex

JSON
Contractor Daily Rate Histogram in Essex

The daily rate distribution of IT jobs citing JSON in Essex over the 3 months to 29 March 2017.

Contractor daily rate histogram for JSON in Essex

JSON
Contractor Hourly Rate Trend in Essex

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

Contractor hourly rate trend for JSON in Essex

JSON
Contractor Hourly Rate Histogram in Essex

The hourly rate distribution of IT jobs citing JSON in Essex over the 3 months to 29 March 2017.

Contractor hourly rate histogram for JSON in Essex

JSON
Contract Job Locations in Essex

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JSON within the Essex 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
Brentwood - 7 - -
Basildon - 3 £250 -
JSON
East of England

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 Essex region with a requirement for JSON.

1 53 (84.13%) XML
2 49 (77.78%) Java
2 49 (77.78%) JavaScript
3 48 (76.19%) HTML
4 36 (57.14%) TDD
5 34 (53.97%) RESTful
6 28 (44.44%) Oracle
7 26 (41.27%) SQL
7 26 (41.27%) Continuous Integration
7 26 (41.27%) Jenkins
8 25 (39.68%) Mobile App
8 25 (39.68%) Pair Programming
8 25 (39.68%) JUnit
8 25 (39.68%) MVC
9 24 (38.10%) OOA/OOD
9 24 (38.10%) Unix
9 24 (38.10%) CRM
9 24 (38.10%) OOD
9 24 (38.10%) Animation
9 24 (38.10%) Core Animation
9 24 (38.10%) GitHub
9 24 (38.10%) Core Data
9 24 (38.10%) Push Notifications
10 23 (36.51%) CSS
11 22 (34.92%) PHP
11 22 (34.92%) Adobe
11 22 (34.92%) Unica
11 22 (34.92%) Adobe Campaign
12 20 (31.75%) B2C
13 19 (30.16%) Business Intelligence

JSON
Co-occurring IT Skills in Essex 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 (12.70%) BizTalk Server
1 8 (12.70%) SharePoint
1 8 (12.70%) Skype for Business
2 3 (4.76%) Mule
2 3 (4.76%) Oracle Service Bus
2 3 (4.76%) Oracle SOA Suite
Applications
1 11 (17.46%) MS Excel
2 1 (1.59%) MS Office
2 1 (1.59%) MS PowerPoint
2 1 (1.59%) MS Project
Business Applications
1 22 (34.92%) Adobe Campaign
1 22 (34.92%) Unica
2 11 (17.46%) SAP Oil and Gas
3 10 (15.87%) Dynamics CRM
Cloud Services
1 24 (38.10%) GitHub
2 12 (19.05%) Adobe Analytics
3 8 (12.70%) Microsoft Azure
3 8 (12.70%) Office 365
3 8 (12.70%) Yammer
Database & Business Intelligence
1 18 (28.57%) BusinessObjects
2 12 (19.05%) Hadoop
3 9 (14.29%) SQL Server
4 2 (3.17%) SQLite
5 1 (1.59%) Data Warehouse
5 1 (1.59%) DataStage
Development Applications
1 26 (41.27%) Jenkins
2 25 (39.68%) JUnit
3 15 (23.81%) Gradle
4 14 (22.22%) Calabash
5 10 (15.87%) Xcode
6 5 (7.94%) Android Studio
7 3 (4.76%) Maven
8 2 (3.17%) Eclipse
8 2 (3.17%) SoapUI
9 1 (1.59%) Git (software)
9 1 (1.59%) Subversion
General
1 19 (30.16%) Manufacturing
2 12 (19.05%) Automotive
3 11 (17.46%) Electronics
3 11 (17.46%) Finance
3 11 (17.46%) Marketing
3 11 (17.46%) Telecoms
4 9 (14.29%) Retail
Job Titles
1 54 (85.71%) Developer
2 18 (28.57%) Android Developer
3 15 (23.81%) CRM Developer
4 10 (15.87%) iOS Developer
5 9 (14.29%) Java Developer
6 6 (9.52%) Architect
6 6 (9.52%) SOA Architect
6 6 (9.52%) Technical Architect
7 3 (4.76%) Agile Developer
7 3 (4.76%) HTML CSS Developer
7 3 (4.76%) HTML Developer
7 3 (4.76%) JavaScript Developer
7 3 (4.76%) PHP Developer
7 3 (4.76%) SOA Developer
7 3 (4.76%) XML Developer
8 2 (3.17%) Analyst
8 2 (3.17%) Integration Developer
9 1 (1.59%) Data Analyst
9 1 (1.59%) Senior Analyst
9 1 (1.59%) Test Analyst
Libraries, Frameworks & Software Standards
1 53 (84.13%) XML
2 48 (76.19%) HTML
3 34 (53.97%) RESTful
4 24 (38.10%) Core Animation
4 24 (38.10%) Core Data
5 23 (36.51%) CSS
6 16 (25.40%) Android SDK
7 11 (17.46%) Middleware
8 10 (15.87%) Cocoa
8 10 (15.87%) iOS SDK
8 10 (15.87%) iPhone SDK
9 9 (14.29%) Swagger
9 9 (14.29%) XSLT
10 8 (12.70%) COM
11 6 (9.52%) Play Framework
11 6 (9.52%) Ruby on Rails
12 3 (4.76%) Apache Camel
12 3 (4.76%) SOAP
12 3 (4.76%) Web Services
12 3 (4.76%) WireMock
Miscellaneous
1 25 (39.68%) Mobile App
2 24 (38.10%) Animation
3 10 (15.87%) iPhone
4 1 (1.59%) IBM Mainframe
4 1 (1.59%) Mainframe
Operating Systems
1 24 (38.10%) Unix
2 18 (28.57%) Android
3 12 (19.05%) Apple iOS
4 8 (12.70%) Windows
5 1 (1.59%) Linux
5 1 (1.59%) Mac OS X
5 1 (1.59%) Solaris
Processes & Methodologies
1 36 (57.14%) TDD
2 26 (41.27%) Continuous Integration
3 25 (39.68%) MVC
3 25 (39.68%) Pair Programming
4 24 (38.10%) CRM
4 24 (38.10%) OOA/OOD
4 24 (38.10%) OOD
4 24 (38.10%) Push Notifications
5 20 (31.75%) B2C
6 19 (30.16%) Business Intelligence
7 18 (28.57%) Android Development
8 16 (25.40%) Analytics
9 12 (19.05%) Agile Software Development
10 11 (17.46%) Digital Marketing
10 11 (17.46%) Programme Management
10 11 (17.46%) SOA
11 10 (15.87%) iOS Development
12 8 (12.70%) Case Management
12 8 (12.70%) Data Management
12 8 (12.70%) Scrum
Programming Languages
1 49 (77.78%) Java
1 49 (77.78%) JavaScript
2 26 (41.27%) SQL
3 22 (34.92%) PHP
4 10 (15.87%) Apple Swift
4 10 (15.87%) C++
4 10 (15.87%) Objective-C
5 9 (14.29%) XPath
6 6 (9.52%) Ruby
7 2 (3.17%) Groovy
8 1 (1.59%) PL/SQL
8 1 (1.59%) Shell Script
Qualifications
1 5 (7.94%) Degree
System Software
1 1 (1.59%) Time Sharing Option
Systems Management
1 1 (1.59%) Ansible
Vendors
1 28 (44.44%) Oracle
2 22 (34.92%) Adobe
3 19 (30.16%) SAP
4 10 (15.87%) Salesforce.com
5 8 (12.70%) Infor
5 8 (12.70%) Microsoft
6 3 (4.76%) WSO2
7 1 (1.59%) IBM
7 1 (1.59%) Teradata
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