The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for DMZ skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited DMZ over the 3 months to 30 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.

Demilitarized Zone (DMZ)
London / City of London
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 149 148 193
Rank change year-on-year -1 +45  
Contract jobs citing DMZ 2 15 3
As % of all contract IT jobs advertised in the City of London 0.064% 0.44% 0.058%
As % of the Communications & Networking category 0.57% 3.77% 0.43%
Number of daily rates quoted 1 8 2
Median daily rate £525 £563 £295
Median daily rate % change year-on-year -6.66% +90.67%  
UK excluding London median daily rate £400 £363 £450
% change year-on-year +10.34% -19.44%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £50.00 - £21.50

DMZ 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 the City of London with a requirement for communications and computer networking skills.

Contract Communications & Computer Network Skills
City of London
Contract job vacancies with a requirement for communications and computer networking skills 353 398 698
As % of all contract IT job vacancies advertised in the City of London 11.38% 11.69% 13.59%
Number of daily rates quoted 263 293 507
Median daily rate £425 £425 £405
Median daily rate % change year-on-year - +5.06%  
90% offered a daily rate of more than £200 £298 £238
10% offered a daily rate of more than £575 £575 £575
UK excluding London median daily rate £375 £363 £347
% change year-on-year +3.44% +4.32%  
Number of hourly rates quoted 11 11 13
Median hourly rate £19.00 £19.50 £18.70
Median hourly rate % change year-on-year -2.56% +4.27%  
90% offered a hourly rate of more than £13.70 £17.50 £13.46
10% offered a hourly rate of more than £27.73 £30.00 £40.00
UK excluding London median hourly rate £22.50 £37.00 £29.50
% change year-on-year -39.18% +25.42%  

DMZ
Job Vacancy Trend in the City of London

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

Job vacancy trend for DMZ in the City of London

DMZ
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for DMZ in the City of London

DMZ
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for DMZ in the City of London

For the 6 months to 30 March 2017, IT contractor jobs citing DMZ 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 City of London region with a requirement for DMZ.

1 5 (83.33%) VPN
2 4 (66.67%) Firewall
2 4 (66.67%) Microsoft Azure
3 3 (50.00%) Microsoft
3 3 (50.00%) SQL Server
3 3 (50.00%) Windows
4 2 (33.33%) Linux
4 2 (33.33%) SOA
4 2 (33.33%) LAN
4 2 (33.33%) SQL
4 2 (33.33%) Internet
4 2 (33.33%) Business Intelligence
4 2 (33.33%) B2B
4 2 (33.33%) WAN
4 2 (33.33%) Wi-Fi
4 2 (33.33%) Finance
4 2 (33.33%) Agile Software Development
4 2 (33.33%) Continuous Integration
4 2 (33.33%) DevOps
4 2 (33.33%) Continuous Delivery
4 2 (33.33%) Docker
4 2 (33.33%) Converged Networks
4 2 (33.33%) Network Monitoring
4 2 (33.33%) PaaS
4 2 (33.33%) IaaS
4 2 (33.33%) Technical Architecture
4 2 (33.33%) Operations Management
4 2 (33.33%) QA
4 2 (33.33%) Git (software)
4 2 (33.33%) Puppet

DMZ
Co-occurring IT Skills in the City of 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:

Application Platforms
1 1 (16.67%) Apache
1 1 (16.67%) Confluence
1 1 (16.67%) JBoss
1 1 (16.67%) Mule ESB
1 1 (16.67%) nginx
1 1 (16.67%) Tomcat
Cloud Services
1 4 (66.67%) Microsoft Azure
2 2 (33.33%) IaaS
2 2 (33.33%) PaaS
3 1 (16.67%) Amazon AWS
3 1 (16.67%) Azure Active Directory
3 1 (16.67%) GitHub
3 1 (16.67%) Google Cloud Platform
3 1 (16.67%) Office 365
Communications & Networking
1 5 (83.33%) VPN
2 4 (66.67%) Firewall
3 2 (33.33%) Converged Networks
3 2 (33.33%) Internet
3 2 (33.33%) LAN
3 2 (33.33%) WAN
3 2 (33.33%) Wi-Fi
4 1 (16.67%) HSRP
4 1 (16.67%) IPsec
4 1 (16.67%) OSPF
4 1 (16.67%) Remote Desktop
4 1 (16.67%) Reverse Proxy
4 1 (16.67%) Spanning Tree
4 1 (16.67%) TCP/IP
4 1 (16.67%) VoIP
4 1 (16.67%) VRRP
Database & Business Intelligence
1 3 (50.00%) SQL Server
2 1 (16.67%) MongoDB
2 1 (16.67%) MySQL
2 1 (16.67%) NoSQL
2 1 (16.67%) PostgreSQL
2 1 (16.67%) Redis
Development Applications
1 2 (33.33%) Git (software)
2 1 (16.67%) Artifactory
2 1 (16.67%) Atlassian Bamboo
2 1 (16.67%) Gerrit
2 1 (16.67%) Jenkins
2 1 (16.67%) JIRA
2 1 (16.67%) Mercurial
2 1 (16.67%) Octopus Deploy
2 1 (16.67%) SonarQube
2 1 (16.67%) Sonatype Nexus
General
1 2 (33.33%) Finance
Job Titles
1 3 (50.00%) Architect
1 3 (50.00%) Azure Architect
2 2 (33.33%) Network Architect
3 1 (16.67%) Infrastructure Engineer
3 1 (16.67%) Infrastructure Support
3 1 (16.67%) Infrastructure Support Engineer
3 1 (16.67%) Network Engineer
3 1 (16.67%) Network Infrastructure Engineer
3 1 (16.67%) Network Support
3 1 (16.67%) Network Support Engineer
3 1 (16.67%) Project Manager
3 1 (16.67%) Senior Infrastructure Engineer
3 1 (16.67%) Senior Infrastructure Support Engineer
3 1 (16.67%) Senior Network Engineer
3 1 (16.67%) Senior Network Support
3 1 (16.67%) Senior Network Support Engineer
3 1 (16.67%) Senior Support Engineer
3 1 (16.67%) Senior Voice Engineer
3 1 (16.67%) Support Engineer
3 1 (16.67%) Voice Engineer
Libraries, Frameworks & Software Standards
1 1 (16.67%) .NET
1 1 (16.67%) J2EE
1 1 (16.67%) LAMP
1 1 (16.67%) LAPP Stack
1 1 (16.67%) LEMP Stack
1 1 (16.67%) RabbitMQ
1 1 (16.67%) Web Services
Operating Systems
1 3 (50.00%) Windows
2 2 (33.33%) Linux
3 1 (16.67%) CentOS
3 1 (16.67%) Red Hat Enterprise Linux
3 1 (16.67%) Ubuntu
3 1 (16.67%) Unix
3 1 (16.67%) Windows Server
Processes & Methodologies
1 2 (33.33%) Agile Software Development
1 2 (33.33%) B2B
1 2 (33.33%) Business Intelligence
1 2 (33.33%) Continuous Delivery
1 2 (33.33%) Continuous Integration
1 2 (33.33%) DevOps
1 2 (33.33%) Network Monitoring
1 2 (33.33%) Operations Management
1 2 (33.33%) SOA
1 2 (33.33%) Technical Architecture
2 1 (16.67%) Asset Management
2 1 (16.67%) BDD
2 1 (16.67%) GAP Analysis
2 1 (16.67%) High Availability
2 1 (16.67%) OWASP
2 1 (16.67%) PRINCE2
2 1 (16.67%) Project Management
2 1 (16.67%) Scrum
2 1 (16.67%) TDD
Programming Languages
1 2 (33.33%) SQL
2 1 (16.67%) Bash Shell
2 1 (16.67%) Java
2 1 (16.67%) Perl
2 1 (16.67%) PHP
2 1 (16.67%) Python
2 1 (16.67%) Ruby
Qualifications
1 1 (16.67%) CCSA
1 1 (16.67%) PRINCE2 Certification
Quality Assurance & Compliance
1 2 (33.33%) QA
System Software
1 2 (33.33%) Docker
2 1 (16.67%) Active Directory
2 1 (16.67%) Hyper-V
2 1 (16.67%) vCloud
2 1 (16.67%) Virtual Machines
Systems Management
1 2 (33.33%) Puppet
2 1 (16.67%) Ansible
2 1 (16.67%) HAProxy
2 1 (16.67%) Kibana
2 1 (16.67%) logstash
2 1 (16.67%) Rundeck
2 1 (16.67%) Salt
2 1 (16.67%) ZABBIX
Vendors
1 3 (50.00%) Microsoft
2 1 (16.67%) Black Duck
2 1 (16.67%) CheckPoint
2 1 (16.67%) Cisco
2 1 (16.67%) Google
2 1 (16.67%) IBM
2 1 (16.67%) Red Hat
2 1 (16.67%) Sonatype
2 1 (16.67%) Splunk
2 1 (16.67%) Veracode
2 1 (16.67%) VMware