The following table provides summary statistics for contract job vacancies with a requirement for Leaflet skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Leaflet over the 3 months to 23 June 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.

Leafletjs
UK
3 months to
23 Jun 2017
Same period 2016 Same period 2015
Rank 593 587 631
Rank change year-on-year -6 +44  
Contract jobs citing Leaflet 9 56 8
As % of all contract IT jobs advertised in the UK 0.019% 0.10% 0.014%
As % of the Libraries, Frameworks & Software Standards category 0.060% 0.37% 0.052%
Number of daily rates quoted 2 10 6
Median daily rate £350 £438 £388
Median daily rate % change year-on-year -20.00% +12.90%  
UK excluding London median daily rate £350 £425 £375
% change year-on-year -17.64% +13.33%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Leaflet 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 with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
UK
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 15019 15261 15400
As % of all contract IT job vacancies advertised in the UK 32.08% 28.36% 27.40%
Number of daily rates quoted 10384 10752 10284
Median daily rate £427 £420 £388
Median daily rate % change year-on-year +1.66% +8.38%  
90% offered a daily rate of more than £315 £300 £280
10% offered a daily rate of more than £580 £550 £550
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 199 178 208
Median hourly rate £41.50 £36.50 £37.00
Median hourly rate % change year-on-year +13.69% -1.35%  
90% offered a hourly rate of more than £19.82 £16.60 £17.68
10% offered a hourly rate of more than £52.50 £51.00 £55.00
UK excluding London median hourly rate £42.50 £36.00 £40.00
% change year-on-year +18.05% -10.00%  

Leaflet
Job Vacancy Trend

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

Job vacancy trend for Leaflet in the UK

Leaflet
Contractor Daily Rate Trend

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

Contractor daily rate trend for Leaflet in the UK

Leaflet
Top 6 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Leaflet within the UK over the 3 months to 23 June 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
England +26 9 £350 -22.22%
South East +9 5 £350 -30.00%
London +8 4 - -
Southampton - 4 £350 -
Hampshire - 4 £350 -
Berkshire - 1 - -

For the 6 months to 23 June 2017, IT contractor jobs citing Leaflet also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for Leaflet.

1 36 (85.71%) JavaScript
2 26 (61.90%) OpenLayers
3 18 (42.86%) HTML
3 18 (42.86%) CSS
4 15 (35.71%) AngularJS
5 14 (33.33%) Front End Development
6 12 (28.57%) SSH
6 12 (28.57%) Java
6 12 (28.57%) Git (software)
7 10 (23.81%) React
7 10 (23.81%) GeoServer
7 10 (23.81%) SQL
8 9 (21.43%) Google
8 9 (21.43%) Google Maps API
8 9 (21.43%) GIS
8 9 (21.43%) Wireframes
8 9 (21.43%) Scala
9 8 (19.05%) D3.js
9 8 (19.05%) Responsive Web Design
9 8 (19.05%) Play Framework
9 8 (19.05%) PostGIS
9 8 (19.05%) HTTP
10 7 (16.67%) ArcGIS
10 7 (16.67%) Web Development
10 7 (16.67%) JSON
10 7 (16.67%) Agile Software Development
10 7 (16.67%) TDD
10 7 (16.67%) QGIS
10 7 (16.67%) Node.js
10 7 (16.67%) User Stories

Leaflet
Co-occurring IT Skills 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 10 (23.81%) GeoServer
2 7 (16.67%) ArcGIS
3 3 (7.14%) Cloud Foundry
4 2 (4.76%) CMS
5 1 (2.38%) Elasticsearch
5 1 (2.38%) Predix
Applications
1 3 (7.14%) AutoCAD
1 3 (7.14%) Microsoft Excel
1 3 (7.14%) MS Visio
Cloud Services
1 3 (7.14%) Cloud Computing
2 1 (2.38%) Amazon AWS
2 1 (2.38%) SaaS
Communications & Networking
1 12 (28.57%) SSH
2 8 (19.05%) HTTP
3 3 (7.14%) DSL
3 3 (7.14%) Ethernet
3 3 (7.14%) LAN
3 3 (7.14%) SDH
3 3 (7.14%) Structured Cabling
3 3 (7.14%) WAN
4 2 (4.76%) HTTPS
Database & Business Intelligence
1 9 (21.43%) GIS
2 7 (16.67%) QGIS
3 6 (14.29%) PostgreSQL
4 4 (9.52%) NoSQL
5 3 (7.14%) Redis
6 2 (4.76%) MySQL
7 1 (2.38%) Big Data
7 1 (2.38%) MongoDB
7 1 (2.38%) Spatial Data
Development Applications
1 12 (28.57%) Git (software)
2 3 (7.14%) Cucumber
2 3 (7.14%) Gradle
2 3 (7.14%) JBehave
2 3 (7.14%) JIRA
2 3 (7.14%) Maven
2 3 (7.14%) Selenium
3 2 (4.76%) Babel
3 2 (4.76%) webpack
General
1 6 (14.29%) Telecoms
2 5 (11.90%) Finance
3 3 (7.14%) Games
Job Titles
1 34 (80.95%) Developer
2 14 (33.33%) JavaScript Developer
3 10 (23.81%) Java Developer
4 8 (19.05%) Front End Developer (Client-Side Developer)
5 7 (16.67%) Web Developer
6 6 (14.29%) Java Scala Developer
6 6 (14.29%) Scala Developer
7 5 (11.90%) Senior Developer
7 5 (11.90%) Senior Java Developer
8 4 (9.52%) Senior Java Scala Developer
8 4 (9.52%) Senior Scala Developer
9 3 (7.14%) Angular Developer
9 3 (7.14%) Open Source Developer
9 3 (7.14%) Python Developer
10 1 (2.38%) AWS Engineer
10 1 (2.38%) C++ Developer
10 1 (2.38%) Interactive Developer
10 1 (2.38%) Java Software Engineer
10 1 (2.38%) Software Developer
10 1 (2.38%) Software Engineer
Libraries, Frameworks & Software Standards
1 26 (61.90%) OpenLayers
2 18 (42.86%) CSS
2 18 (42.86%) HTML
3 15 (35.71%) AngularJS
4 10 (23.81%) React
5 9 (21.43%) Google Maps API
6 8 (19.05%) D3.js
6 8 (19.05%) Play Framework
6 8 (19.05%) PostGIS
7 7 (16.67%) HTML5
7 7 (16.67%) JSON
7 7 (16.67%) Node.js
7 7 (16.67%) RESTful
8 6 (14.29%) CSS3
8 6 (14.29%) SVG
9 5 (11.90%) Sass
10 4 (9.52%) GeoJSON
10 4 (9.52%) REST
11 3 (7.14%) Polymer
11 3 (7.14%) Web Components
Miscellaneous
1 6 (14.29%) CESG
2 4 (9.52%) Linux Command Line
3 3 (7.14%) Derivative
3 3 (7.14%) User Experience
4 1 (2.38%) Computer Science
Operating Systems
1 5 (11.90%) Linux
Processes & Methodologies
1 14 (33.33%) Front End Development
2 9 (21.43%) Wireframes
3 8 (19.05%) Responsive Web Design
4 7 (16.67%) Agile Software Development
4 7 (16.67%) BDD
4 7 (16.67%) TDD
4 7 (16.67%) User Stories
4 7 (16.67%) Web Development
5 6 (14.29%) Information Security
6 5 (11.90%) Web Design
7 3 (7.14%) Microservices
7 3 (7.14%) MVC
7 3 (7.14%) OWASP
7 3 (7.14%) PRINCE2
7 3 (7.14%) Project Management
7 3 (7.14%) Scrum
7 3 (7.14%) SDLC
7 3 (7.14%) Software Delivery
7 3 (7.14%) Technical Architecture
7 3 (7.14%) Test Automation
Programming Languages
1 36 (85.71%) JavaScript
2 12 (28.57%) Java
3 10 (23.81%) SQL
4 9 (21.43%) Scala
5 4 (9.52%) Python
6 2 (4.76%) ES6
6 2 (4.76%) PHP
7 1 (2.38%) C++
7 1 (2.38%) R
Qualifications
1 6 (14.29%) SC Cleared
1 6 (14.29%) Security Cleared
2 5 (11.90%) DV Cleared
3 1 (2.38%) Degree
Quality Assurance & Compliance
1 6 (14.29%) JSP 440
2 3 (7.14%) QA
Vendors
1 9 (21.43%) Google
2 5 (11.90%) Mapbox
3 3 (7.14%) ESRI
3 3 (7.14%) Juniper
4 1 (2.38%) Oracle