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 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.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
Leafletjs
UK
Rank 566 611 606
Rank change year-on-year +45 -5  
Contract jobs citing Leaflet 33 17 15
As % of all contract IT jobs advertised in the UK 0.074% 0.032% 0.029%
As % of the Libraries, Frameworks & Software Standards category 0.24% 0.12% 0.11%
Number of daily rates quoted 22 1 2
Median daily rate £391 £400 £363
Median daily rate % change year-on-year -2.18% +10.34%  
90% offered a daily rate of more than £325 £400 £353
10% offered a daily rate of more than £536 £400 £373
UK excluding London median daily rate £350 £400 £350
% change year-on-year -12.50% +14.28%  
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 14008 14779 13928
As % of all contract IT job vacancies advertised in the UK 31.32% 27.98% 26.60%
Number of daily rates quoted 9711 10236 9022
Median daily rate £425 £400 £388
Median daily rate % change year-on-year +6.25% +3.22%  
90% offered a daily rate of more than £300 £300 £278
10% offered a daily rate of more than £563 £550 £550
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 177 227 188
Median hourly rate £42.50 £38.75 £35.00
Median hourly rate % change year-on-year +9.67% +10.71%  
90% offered a hourly rate of more than £16.50 £13.75 £20.00
10% offered a hourly rate of more than £55.00 £57.75 £47.00
UK excluding London median hourly rate £40.00 £38.00 £36.00
% change year-on-year +5.26% +5.55%  

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
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Leaflet over the 3 months to 23 March 2017.

Contractor daily rate histogram for Leaflet in the UK

Leaflet
Top 18 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 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
England +58 27 £425 +6.25% 2
London +28 12 £475 -
East of England - 5 £321 -
City of London +11 4 £391 -
South East +19 3 £325 -18.75% 1
Cambridgeshire - 3 - -
Cambridge - 3 - -
Bedfordshire - 2 £321 -
Luton - 2 £321 -
Oxfordshire - 2 £325 -
Scotland +16 1 - -
Edinburgh +8 1 - -
Bristol - 1 £425 -
Solihull - 1 - -
Southampton - 1 - -
Hampshire - 1 - -
South West - 1 £425 - 1
West Midlands - 1 - -

Leaflet
Top 30 Related IT Skills

For the 6 months to 23 March 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 50 (84.75%) JavaScript
2 38 (64.41%) OpenLayers
3 27 (45.76%) Java
4 26 (44.07%) Agile Software Development
4 26 (44.07%) GeoServer
5 25 (42.37%) PostGIS
5 25 (42.37%) AngularJS
6 23 (38.98%) BDD
6 23 (38.98%) TDD
7 20 (33.90%) Scrum
8 19 (32.20%) ESRI
8 19 (32.20%) Python
9 18 (30.51%) HTML
9 18 (30.51%) CSS
10 17 (28.81%) GIS
10 17 (28.81%) Maven
10 17 (28.81%) Cucumber
10 17 (28.81%) JBehave
10 17 (28.81%) Open Source
10 17 (28.81%) Gradle
10 17 (28.81%) JIRA
11 14 (23.73%) Git (software)
12 12 (20.34%) Degree
12 12 (20.34%) D3.js
12 12 (20.34%) SSH
13 10 (16.95%) Migration
13 10 (16.95%) NoSQL
13 10 (16.95%) Front End Development
14 9 (15.25%) SDLC
14 9 (15.25%) Microservices

Leaflet
Top Related 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 26 (44.07%) GeoServer
2 7 (11.86%) ArcGIS
3 3 (5.08%) Cloud Foundry
4 2 (3.39%) CMS
5 1 (1.69%) Apache Solr
5 1 (1.69%) Elasticsearch
5 1 (1.69%) Predix
Applications
1 6 (10.17%) AutoCAD
1 6 (10.17%) MS Visio
2 2 (3.39%) MS Excel
2 2 (3.39%) MS Office
Cloud Services
1 3 (5.08%) Cloud Computing
2 2 (3.39%) Amazon AWS
3 1 (1.69%) Microsoft Azure
Communications & Networking
1 12 (20.34%) SSH
2 8 (13.56%) HTTP
3 6 (10.17%) LAN
4 4 (6.78%) Ethernet
4 4 (6.78%) Structured Cabling
4 4 (6.78%) WAN
5 3 (5.08%) DSL
5 3 (5.08%) SDH
6 2 (3.39%) HTTPS
Database & Business Intelligence
1 17 (28.81%) GIS
2 10 (16.95%) NoSQL
3 8 (13.56%) Spatial Data
4 7 (11.86%) QGIS
5 5 (8.47%) PostgreSQL
6 4 (6.78%) Redis
7 3 (5.08%) MongoDB
8 2 (3.39%) MySQL
8 2 (3.39%) QlikView
9 1 (1.69%) Apache Cassandra
9 1 (1.69%) CouchDB
9 1 (1.69%) Hadoop
9 1 (1.69%) HBase
9 1 (1.69%) Neo4j
9 1 (1.69%) Riak
9 1 (1.69%) SQL Server
Development Applications
1 17 (28.81%) Cucumber
1 17 (28.81%) Gradle
1 17 (28.81%) JBehave
1 17 (28.81%) JIRA
1 17 (28.81%) Maven
2 14 (23.73%) Git (software)
3 9 (15.25%) Selenium
4 2 (3.39%) Artifactory
4 2 (3.39%) Babel
4 2 (3.39%) Jenkins
4 2 (3.39%) Karma Test Runner
4 2 (3.39%) Mocha
4 2 (3.39%) Protractor
4 2 (3.39%) webpack
General
1 7 (11.86%) Finance
2 6 (10.17%) Telecoms
3 3 (5.08%) Games
4 1 (1.69%) Multimedia
Job Titles
1 48 (81.36%) Developer
2 23 (38.98%) JavaScript Developer
3 16 (27.12%) Java Developer
4 9 (15.25%) Angular Developer
4 9 (15.25%) Open Source Developer
4 9 (15.25%) Python Developer
4 9 (15.25%) Web Developer
5 6 (10.17%) Java Scala Developer
5 6 (10.17%) Scala Developer
6 5 (8.47%) Senior Developer
6 5 (8.47%) Senior Java Developer
7 4 (6.78%) Senior Java Scala Developer
7 4 (6.78%) Senior Scala Developer
8 3 (5.08%) Front End Developer (Client-Side Developer)
8 3 (5.08%) GIS Developer
9 2 (3.39%) GIS Web Developer
10 1 (1.69%) AWS Engineer
10 1 (1.69%) AWS Software Engineer
10 1 (1.69%) C# .NET Developer
10 1 (1.69%) Scala Software Engineer
Libraries, Frameworks & Software Standards
1 38 (64.41%) OpenLayers
2 25 (42.37%) AngularJS
2 25 (42.37%) PostGIS
3 18 (30.51%) CSS
3 18 (30.51%) HTML
4 12 (20.34%) D3.js
5 9 (15.25%) JSON
5 9 (15.25%) REST
5 9 (15.25%) RESTful
5 9 (15.25%) Web Services
6 8 (13.56%) Node.js
6 8 (13.56%) Play Framework
6 8 (13.56%) SVG
7 7 (11.86%) Google Maps API
7 7 (11.86%) HTML5
7 7 (11.86%) React
8 6 (10.17%) CSS3
8 6 (10.17%) GeoJSON
9 5 (8.47%) Sass
10 4 (6.78%) jQuery
Miscellaneous
1 7 (11.86%) CESG
2 4 (6.78%) Derivative
2 4 (6.78%) Linux Command Line
3 3 (5.08%) User Experience
4 2 (3.39%) Data Centre
Operating Systems
1 5 (8.47%) Linux
2 1 (1.69%) Android
2 1 (1.69%) Apple iOS
Processes & Methodologies
1 26 (44.07%) Agile Software Development
2 23 (38.98%) BDD
2 23 (38.98%) TDD
3 20 (33.90%) Scrum
4 17 (28.81%) Open Source
5 10 (16.95%) Front End Development
5 10 (16.95%) Migration
6 9 (15.25%) Microservices
6 9 (15.25%) Open Source Development
6 9 (15.25%) SDLC
6 9 (15.25%) Web Development
7 8 (13.56%) Data Migration
7 8 (13.56%) Responsive Web Design
7 8 (13.56%) User Stories
8 7 (11.86%) Information Security
8 7 (11.86%) Project Management
8 7 (11.86%) Wireframes
9 6 (10.17%) PRINCE2
9 6 (10.17%) Web Design
10 4 (6.78%) MVC
Programming Languages
1 50 (84.75%) JavaScript
2 27 (45.76%) Java
3 19 (32.20%) Python
4 9 (15.25%) SQL
5 8 (13.56%) Scala
6 2 (3.39%) ES6
6 2 (3.39%) PHP
7 1 (1.69%) C
7 1 (1.69%) C#
7 1 (1.69%) C++
Qualifications
1 12 (20.34%) Degree
2 9 (15.25%) Security Cleared
3 8 (13.56%) SC Cleared
4 5 (8.47%) DV Cleared
5 2 (3.39%) BICSI Certification
5 2 (3.39%) BICSI RCDD
5 2 (3.39%) ITIL Certification
5 2 (3.39%) PRINCE2 Certification
Quality Assurance & Compliance
1 9 (15.25%) JSP 440
1 9 (15.25%) QA
Systems Management
1 2 (3.39%) Ansible
Vendors
1 19 (32.20%) ESRI
2 8 (13.56%) Google
3 3 (5.08%) Juniper
3 3 (5.08%) Mapbox
4 2 (3.39%) Microsoft