Period
to 15 December 2018

The following table provides summary statistics for contract job vacancies advertised in Brentwood with a requirement for JSON skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JSON over the 6 months to 15 December 2018 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
Essex > Brentwood
6 months to
15 Dec 2018
Same period 2017 Same period 2016
Rank 3 16 8
Rank change year-on-year +13 -8 -
Contract jobs citing JSON 12 11 2
As % of all contract IT jobs advertised in Brentwood 27.27% 13.92% 5.13%
As % of the Libraries, Frameworks & Software Standards category 57.14% 27.50% 14.29%
Number of daily rates quoted 4 4 0
Brentwood median daily rate £463 £450 -
Median daily rate % change year-on-year +2.78% - -
Essex median daily rate £525 £513 £280
% change year-on-year +2.44% +83.04% -44.00%
Number of hourly rates quoted 1 14 2
Brentwood median hourly rate £65.00 £62.50 £36.00
Median hourly rate % change year-on-year +4.00% +73.61% -
Essex median hourly rate £62.19 £62.50 £34.25
% change year-on-year -0.50% +82.48% +8.66%

JSON is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Brentwood with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
Brentwood
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 21 40 14
As % of all contract IT jobs advertised in Brentwood 47.73% 50.63% 35.90%
Number of daily rates quoted 8 20 5
Brentwood median daily rate £463 £375 £265
Median daily rate % change year-on-year +23.33% +41.51% -33.75%
10th Percentile £326 £310 £255
90th Percentile £488 £476 £363
Essex median daily rate £525 £513 £358
% change year-on-year +2.44% +43.36% -10.63%
Number of hourly rates quoted 1 16 7
Brentwood median hourly rate £65.00 £49.25 £36.00
Median hourly rate % change year-on-year +31.98% +36.81% -3.87%
10th Percentile £62.50 £37.00 £30.75
90th Percentile £67.50 £63.75 £41.06
Essex median hourly rate £42.50 £40.00 £36.00
% change year-on-year +6.25% +11.11% -1.37%

JSON
Job Vacancy Trend in Brentwood

Job postings citing JSON as a percentage of all IT jobs advertised in Brentwood.

Job vacancy trend for JSON in Brentwood

JSON
Contractor Daily Rate Trend in Brentwood

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

Contractor daily rate trend for JSON in Brentwood

JSON
Contractor Daily Rate Histogram in Brentwood

The daily rate distribution of IT jobs citing JSON in Brentwood over the 6 months to 15 December 2018.

Contractor daily rate histogram for JSON in Brentwood

JSON
Contractor Hourly Rate Trend in Brentwood

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

Contractor hourly rate trend for JSON in Brentwood

For the 6 months to 15 December 2018, IT contractor jobs citing JSON also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Brentwood region with a requirement for JSON.

1 10 (83.33%) Software Engineering
2 9 (75.00%) C
3 8 (66.67%) HTML
3 8 (66.67%) JavaScript
4 7 (58.33%) C++
4 7 (58.33%) Wi-Fi
4 7 (58.33%) Linux
4 7 (58.33%) Broadband
4 7 (58.33%) VoIP
4 7 (58.33%) WAN
4 7 (58.33%) DHCP
4 7 (58.33%) FTP
4 7 (58.33%) HTTP
4 7 (58.33%) DNS
4 7 (58.33%) CGI
4 7 (58.33%) Embedded C
4 7 (58.33%) IPv4
4 7 (58.33%) IPv6
4 7 (58.33%) Internet
4 7 (58.33%) Configuration Management
4 7 (58.33%) DSL
4 7 (58.33%) Ajax
4 7 (58.33%) Media Streaming
4 7 (58.33%) Embedded Linux
4 7 (58.33%) Scrum
4 7 (58.33%) UPnP
4 7 (58.33%) DLNA
4 7 (58.33%) Defect Tracking
4 7 (58.33%) Creative Thinking
4 7 (58.33%) Innovative Thinking

JSON
Co-occurring IT Skills in Brentwood 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:

Cloud Services
1 1 (8.33%) GitHub
Communications & Networking
1 7 (58.33%) Broadband
1 7 (58.33%) DHCP
1 7 (58.33%) DLNA
1 7 (58.33%) DNS
1 7 (58.33%) DSL
1 7 (58.33%) FTP
1 7 (58.33%) HTTP
1 7 (58.33%) Internet
1 7 (58.33%) IPv4
1 7 (58.33%) IPv6
1 7 (58.33%) UPnP
1 7 (58.33%) VoIP
1 7 (58.33%) WAN
1 7 (58.33%) Wi-Fi
Development Applications
1 2 (16.67%) Android Studio
1 2 (16.67%) Calabash
1 2 (16.67%) CircleCI
1 2 (16.67%) fastlane
1 2 (16.67%) Git (software)
1 2 (16.67%) Gradle
1 2 (16.67%) Jenkins
1 2 (16.67%) JUnit
1 2 (16.67%) Xcode
2 1 (8.33%) Pivotal Tracker
2 1 (8.33%) SonarQube
2 1 (8.33%) Sonatype Nexus
General
1 4 (33.33%) Automotive
2 1 (8.33%) Marketing
Job Titles
1 10 (83.33%) Developer
2 2 (16.67%) iOS Developer
3 1 (8.33%) Analyst
3 1 (8.33%) Android Developer
3 1 (8.33%) Android Engineer
3 1 (8.33%) Android Software Engineer
3 1 (8.33%) Business Analyst
3 1 (8.33%) Software Engineer
Libraries, Frameworks & Software Standards
1 8 (66.67%) HTML
2 7 (58.33%) Ajax
2 7 (58.33%) CGI
3 5 (41.67%) XML
4 4 (33.33%) RESTful
5 2 (16.67%) Android SDK
5 2 (16.67%) Dagger
5 2 (16.67%) Reactive Extensions
5 2 (16.67%) RxJava
5 2 (16.67%) RxSwift
6 1 (8.33%) AngularJS
6 1 (8.33%) CSS
6 1 (8.33%) HTML5
6 1 (8.33%) React
Miscellaneous
1 7 (58.33%) Media Streaming
1 7 (58.33%) Self-Motivation
Operating Systems
1 7 (58.33%) Embedded Linux
1 7 (58.33%) Linux
2 4 (33.33%) Android
3 2 (16.67%) Apple iOS
Processes & Methodologies
1 10 (83.33%) Software Engineering
2 7 (58.33%) Collaborative Working
2 7 (58.33%) Configuration Management
2 7 (58.33%) Creative Thinking
2 7 (58.33%) Defect Tracking
2 7 (58.33%) Innovative Thinking
2 7 (58.33%) Problem-Solving
2 7 (58.33%) Scrum
3 4 (33.33%) MVC
3 4 (33.33%) MVVM
4 3 (25.00%) TDD
5 2 (16.67%) iOS Development
5 2 (16.67%) Unit Testing
6 1 (8.33%) Android Development
6 1 (8.33%) Online Marketing
6 1 (8.33%) Pair Programming
6 1 (8.33%) Product Management
6 1 (8.33%) Sequence Diagram
6 1 (8.33%) User Stories
6 1 (8.33%) Wireframes
Programming Languages
1 9 (75.00%) C
2 8 (66.67%) JavaScript
3 7 (58.33%) C++
3 7 (58.33%) Embedded C
4 3 (25.00%) Java
5 2 (16.67%) Apple Swift
5 2 (16.67%) Kotlin
5 2 (16.67%) Objective-C
6 1 (8.33%) PHP
Vendors
1 1 (8.33%) CA Agile Central