The table below looks at the statistics for Postfix skills in IT jobs advertised for the London region. Included is a guide to the salaries offered in IT jobs that have cited Postfix over the 3 months to 8 December 2016 with a comparison to the same period over the previous 2 years.

3 months to
8 Dec 2016
Same period 2015 Same period 2014
Postfix
Rank 609 638 637
Rank change year-on-year
+29 -1
Permanent jobs citing Postfix 3 15 28
As % of all permanent IT jobs located in London 0.009% 0.035% 0.062%
As % of the System Software category 0.071% 0.31% 0.50%
Number of salaries quoted 2 14 28
Median salary £65,000 £52,500 £50,000
Median salary % change year-on-year
+23.80% +5.00%
UK excluding London median salary £37,500 £47,500 £42,250
% change year-on-year
-21.05% +12.42%
Postfix
England

The following table is for comparison with the above and provides statistics for the entire System Software category in permanent jobs advertised in the London region.

System Software Category
London
Permanent IT job ads with a match in the
System Software category
4208 4909 5580
As % of all permanent IT jobs located in London 11.93% 11.30% 12.42%
Number of salaries quoted 3564 4209 4866
Median salary £51,500 £48,000 £45,000
Median salary % change year-on-year
+7.29% +6.66%
90% offered a salary of more than £29,000 £27,500 £28,000
10% offered a salary of more than £80,000 £67,500 £70,000
UK excluding London median salary £37,500 £40,000 £37,500
% change year-on-year
-6.25% +6.66%

Postfix
Jobs Demand Trend in London

The demand trend of job ads across the London region citing Postfix as a proportion of all IT jobs with a match in the System Software category.

Postfix Jobs Demand Trend in London

Postfix
Salary Trend in London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Postfix across the London region.

Postfix Salary Trend in London

Postfix
Top 30 Related IT Skills in London

For the 6 months to 8 December 2016, IT jobs citing Postfix also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the London region with a requirement for Postfix.

1 14 (77.78%) Linux
2 12 (66.67%) Apache
3 11 (61.11%) Red Hat
4 9 (50.00%) DNS
5 8 (44.44%) MySQL
5 8 (44.44%) VMware
6 7 (38.89%) PostgreSQL
6 7 (38.89%) Java
6 7 (38.89%) Perl
6 7 (38.89%) CentOS
6 7 (38.89%) Red Hat Enterprise Linux
6 7 (38.89%) VMware Infrastructure
7 6 (33.33%) Sendmail
7 6 (33.33%) Bash Shell
7 6 (33.33%) NetApp
7 6 (33.33%) Firewall
7 6 (33.33%) EMC
8 5 (27.78%) Python
8 5 (27.78%) Windows
8 5 (27.78%) VPN
8 5 (27.78%) KVM
8 5 (27.78%) Xen
9 4 (22.22%) VLAN
9 4 (22.22%) Squid
9 4 (22.22%) Hyper-V
9 4 (22.22%) ZABBIX
9 4 (22.22%) Microsoft Virtual Server
9 4 (22.22%) Groovy
9 4 (22.22%) SC Cleared
9 4 (22.22%) Security Cleared

Postfix
Top Related 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:

Application Platforms
1 12 (66.67%) Apache
2 4 (22.22%) Exchange Server 2010
2 4 (22.22%) Exchange Server 2013
2 4 (22.22%) MS Exchange
2 4 (22.22%) SharePoint
2 4 (22.22%) Skype for Business
3 1 (5.56%) CMS
3 1 (5.56%) Drupal
3 1 (5.56%) IIS
3 1 (5.56%) nginx
3 1 (5.56%) WordPress
Applications
1 2 (11.11%) MS Excel
Business Applications
1 1 (5.56%) Magento
Cloud Services
1 2 (11.11%) Cloud Computing
Communications & Networking
1 9 (50.00%) DNS
2 6 (33.33%) Firewall
3 5 (27.78%) VPN
4 4 (22.22%) FTP
4 4 (22.22%) Skype
4 4 (22.22%) TCP/IP
4 4 (22.22%) VLAN
5 3 (16.67%) SSH
5 3 (16.67%) SSL
6 2 (11.11%) Asterisk PBX
6 2 (11.11%) DHCP
6 2 (11.11%) Ethernet
6 2 (11.11%) HTTP
6 2 (11.11%) HTTPS
6 2 (11.11%) Internet
6 2 (11.11%) IPsec
6 2 (11.11%) NAS
6 2 (11.11%) OpenLDAP
6 2 (11.11%) OpenVPN
6 2 (11.11%) SAN
Database & Business Intelligence
1 8 (44.44%) MySQL
2 7 (38.89%) PostgreSQL
3 1 (5.56%) Hadoop
3 1 (5.56%) MongoDB
3 1 (5.56%) SQL Server
Development Applications
1 4 (22.22%) Liquibase
2 2 (11.11%) Subversion
General
1 2 (11.11%) Advertising
Job Titles
1 6 (33.33%) Administrator
1 6 (33.33%) Linux Administrator
1 6 (33.33%) Linux Systems Administrator
1 6 (33.33%) Systems Administrator
2 4 (22.22%) 3rd Line Engineer
2 4 (22.22%) Developer
2 4 (22.22%) Java Developer
3 2 (11.11%) Linux Engineer
3 2 (11.11%) Senior Server Engineer
3 2 (11.11%) Server Engineer
4 1 (5.56%) Senior Linux Administrator
4 1 (5.56%) Senior Linux Systems Administrator
4 1 (5.56%) Senior Systems Administrator
4 1 (5.56%) Solaris Administrator
4 1 (5.56%) Solaris Systems Administrator
4 1 (5.56%) Unix Administrator
4 1 (5.56%) Unix Systems Administrator
4 1 (5.56%) VMWare Administrator
4 1 (5.56%) Windows Administrator
4 1 (5.56%) Windows Systems Administrator
Libraries, Frameworks & Software Standards
1 4 (22.22%) LAMP
1 4 (22.22%) XML
2 3 (16.67%) LAPP Stack
3 1 (5.56%) LEMP Stack
3 1 (5.56%) REST
Miscellaneous
1 3 (16.67%) Computer Science
2 2 (11.11%) Hedge funds
2 2 (11.11%) Wiki
3 1 (5.56%) Clustering
3 1 (5.56%) Data Centre
Operating Systems
1 14 (77.78%) Linux
2 7 (38.89%) CentOS
2 7 (38.89%) Red Hat Enterprise Linux
3 5 (27.78%) Windows
4 4 (22.22%) Unix
4 4 (22.22%) Windows 10
4 4 (22.22%) Windows 7
4 4 (22.22%) Windows 8
5 2 (11.11%) AIX
5 2 (11.11%) FreeBSD
6 1 (5.56%) Debian
6 1 (5.56%) Solaris
6 1 (5.56%) Ubuntu
6 1 (5.56%) Windows Server
6 1 (5.56%) Windows Server 2008
6 1 (5.56%) Windows Server 2012
Processes & Methodologies
1 4 (22.22%) Migration
2 3 (16.67%) Time Management
3 2 (11.11%) DevOps
3 2 (11.11%) Performance Tuning
3 2 (11.11%) Systematic Trading
4 1 (5.56%) Analytics
4 1 (5.56%) Configuration Management
4 1 (5.56%) E-Commerce
4 1 (5.56%) High Availability
Programming Languages
1 7 (38.89%) Java
1 7 (38.89%) Perl
2 6 (33.33%) Bash Shell
3 5 (27.78%) Python
4 4 (22.22%) Groovy
4 4 (22.22%) PHP
4 4 (22.22%) SQL
5 1 (5.56%) C
5 1 (5.56%) Ruby
Qualifications
1 4 (22.22%) SC Cleared
1 4 (22.22%) Security Cleared
2 3 (16.67%) CCNA
2 3 (16.67%) Cisco Certification
2 3 (16.67%) Degree
2 3 (16.67%) MCSA
2 3 (16.67%) MCSE
2 3 (16.67%) Microsoft Certification
3 1 (5.56%) RHCE
System Software
1 7 (38.89%) VMware Infrastructure
2 6 (33.33%) Sendmail
3 5 (27.78%) KVM
3 5 (27.78%) Xen
4 4 (22.22%) Active Directory
4 4 (22.22%) Hyper-V
4 4 (22.22%) Microsoft Virtual Server
4 4 (22.22%) Squid
4 4 (22.22%) Virtual Servers
4 4 (22.22%) vSphere
5 3 (16.67%) qmail
6 2 (11.11%) Samba
6 2 (11.11%) VMware ESX
7 1 (5.56%) Docker
7 1 (5.56%) oVirt
7 1 (5.56%) Varnish
Systems Management
1 4 (22.22%) Backup Exec
1 4 (22.22%) Puppet
1 4 (22.22%) ZABBIX
2 3 (16.67%) Opscode Chef
3 2 (11.11%) Ansible
4 1 (5.56%) cPanel
4 1 (5.56%) Failover Clustering
4 1 (5.56%) Kubernetes
4 1 (5.56%) Munin
4 1 (5.56%) Nagios
4 1 (5.56%) Plesk
4 1 (5.56%) Salt
Vendors
1 11 (61.11%) Red Hat
2 8 (44.44%) VMware
3 6 (33.33%) EMC
3 6 (33.33%) NetApp
4 4 (22.22%) Cisco
4 4 (22.22%) Dell
4 4 (22.22%) HP
4 4 (22.22%) Microsoft
4 4 (22.22%) Veritas
5 2 (11.11%) Brocade
6 1 (5.56%) SaltStack
6 1 (5.56%) Sun