The following table provides summary statistics for contract job vacancies advertised in London with a requirement for ZigBee skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited ZigBee over the 3 months to 28 April 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.

ZigBee
England / London
3 months to
28 Apr 2017
Same period 2016 Same period 2015
Rank 408 433 428
Rank change year-on-year +25 -5  
Contract jobs citing ZigBee 1 2 1
As % of all contract IT jobs advertised in London 0.005% 0.009% 0.004%
As % of the Communications & Networking category 0.042% 0.068% 0.034%
Number of daily rates quoted 1 0 1
Median daily rate £525 - £375
UK excluding London median daily rate £375 £375 £400
% change year-on-year - -6.25%  
Number of hourly rates quoted 0 1 0
Median hourly rate - £50.00 -
UK excluding London median hourly rate £55.00 £55.00 £38.75
% change year-on-year - +41.93%  

ZigBee is in the communications and computer networking skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for communications and computer networking skills.

Contract Communications & Computer Network Skills
London
Contract job vacancies with a requirement for communications and computer networking skills 2377 2936 2968
As % of all contract IT job vacancies advertised in London 11.55% 12.76% 13.26%
Number of daily rates quoted 1576 2033 1895
Median daily rate £450 £425 £375
Median daily rate % change year-on-year +5.88% +13.33%  
90% offered a daily rate of more than £250 £250 £225
10% offered a daily rate of more than £575 £550 £550
UK excluding London median daily rate £388 £364 £342
% change year-on-year +6.45% +6.43%  
Number of hourly rates quoted 68 44 82
Median hourly rate £25.00 £21.34 £24.25
Median hourly rate % change year-on-year +17.15% -12.00%  
90% offered a hourly rate of more than £17.00 £12.50 £14.00
10% offered a hourly rate of more than £50.00 £30.00 £50.00
UK excluding London median hourly rate £25.00 £30.00 £30.00
% change year-on-year -16.66% -  

ZigBee
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing ZigBee as a proportion of all contract or permanent IT jobs with a match in the Communications & Networking category.

Job vacancy trend for ZigBee in London

ZigBee
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for ZigBee in London

ZigBee
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for ZigBee in London

For the 6 months to 28 April 2017, IT contractor jobs citing ZigBee 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 London region with a requirement for ZigBee.

1 2 (100.00%) Configuration Management
1 2 (100.00%) Linux
1 2 (100.00%) Firmware
2 1 (50.00%) 802.15
2 1 (50.00%) C
2 1 (50.00%) C#
2 1 (50.00%) Java
2 1 (50.00%) .NET
2 1 (50.00%) Visual Studio
2 1 (50.00%) Web Services
2 1 (50.00%) XML
2 1 (50.00%) Python
2 1 (50.00%) LDAP
2 1 (50.00%) FTP
2 1 (50.00%) HTTP
2 1 (50.00%) TCP/IP
2 1 (50.00%) VPN
2 1 (50.00%) SSL
2 1 (50.00%) Firewall
2 1 (50.00%) Device Driver
2 1 (50.00%) Subversion
2 1 (50.00%) Ruby
2 1 (50.00%) Ubuntu
2 1 (50.00%) Embedded Linux
2 1 (50.00%) .NET Framework
2 1 (50.00%) JSON
2 1 (50.00%) WCF
2 1 (50.00%) SQLite
2 1 (50.00%) Network Security
2 1 (50.00%) Android

ZigBee
Co-occurring IT Skills in London 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 (50.00%) Amazon AWS
1 1 (50.00%) AWS CloudFormation
Communications & Networking
1 1 (50.00%) 802.15
1 1 (50.00%) Firewall
1 1 (50.00%) FTP
1 1 (50.00%) HTTP
1 1 (50.00%) LDAP
1 1 (50.00%) Network Security
1 1 (50.00%) OpenVPN
1 1 (50.00%) SSL
1 1 (50.00%) TCP/IP
1 1 (50.00%) VPN
Database & Business Intelligence
1 1 (50.00%) Amazon DynamoDB
1 1 (50.00%) Apache Cassandra
1 1 (50.00%) NoSQL
1 1 (50.00%) SQLite
Development Applications
1 1 (50.00%) Git (software)
1 1 (50.00%) Subversion
1 1 (50.00%) Visual Studio
Job Titles
1 1 (50.00%) Android Engineer
1 1 (50.00%) DevOps Engineer
1 1 (50.00%) Embedded Engineer
1 1 (50.00%) Embedded Firmware Engineer
1 1 (50.00%) Embedded Linux Engineer
1 1 (50.00%) Firmware Engineer
1 1 (50.00%) Kernel Engineer
1 1 (50.00%) Linux Engineer
Libraries, Frameworks & Software Standards
1 1 (50.00%) .NET
1 1 (50.00%) .NET Compact Framework
1 1 (50.00%) .NET Framework
1 1 (50.00%) 802.1X
1 1 (50.00%) JSON
1 1 (50.00%) OAuth
1 1 (50.00%) WCF
1 1 (50.00%) Web Services
1 1 (50.00%) XML
1 1 (50.00%) Yocto
Miscellaneous
1 1 (50.00%) Device Driver
1 1 (50.00%) Mobile App
Operating Systems
1 2 (100.00%) Linux
2 1 (50.00%) Android
2 1 (50.00%) Embedded Linux
2 1 (50.00%) Ubuntu
Processes & Methodologies
1 2 (100.00%) Configuration Management
2 1 (50.00%) DevOps
2 1 (50.00%) Open Source
Programming Languages
1 1 (50.00%) Bash Shell
1 1 (50.00%) C
1 1 (50.00%) C#
1 1 (50.00%) Java
1 1 (50.00%) Python
1 1 (50.00%) Ruby
System Software
1 2 (100.00%) Firmware
Systems Management
1 1 (50.00%) Puppet
Vendors
1 1 (50.00%) Assembla