Period
to 23 September 2018

The following table provides summary statistics for permanent job vacancies with a requirement for Postfix skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Postfix over the 6 months to 23 September 2018 with a comparison to the same period in the previous 2 years.

Postfix
UK
6 months to
23 Sep 2018
Same period 2017 Same period 2016
Rank 1133 1147 1149
Rank change year-on-year +14 +2 +80
Permanent jobs citing Postfix 24 53 92
As % of all permanent IT jobs advertised in the UK 0.015% 0.030% 0.047%
As % of the System Software category 0.099% 0.23% 0.38%
Number of salaries quoted 21 35 75
UK median annual salary £49,000 £40,000 £45,000
Median salary % change year-on-year +22.50% -11.11% -5.26%
10th Percentile £24,750 £31,000 £31,250
90th Percentile £58,750 £83,500 £61,500
UK excluding London median annual salary £30,000 £38,750 £37,500
% change year-on-year -22.58% +3.33% -16.67%

Postfix is in the System Software category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for system software skills.

All System Software Skills
UK
Permanent vacancies with a requirement for system software skills 24,342 22,715 24,156
As % of all permanent IT jobs advertised in the UK 14.73% 12.93% 12.45%
Number of salaries quoted 19,892 19,121 20,438
UK median annual salary £49,500 £45,000 £42,500
Median salary % change year-on-year +10.00% +5.88% +6.25%
10th Percentile £24,750 £24,000 £23,250
90th Percentile £81,250 £75,000 £71,250
UK excluding London median annual salary £42,500 £38,500 £37,500
% change year-on-year +10.39% +2.67% -

Postfix
Job Vacancy Trend

Job postings citing Postfix as a percentage of all IT jobs advertised.

Job vacancy trend for Postfix in the UK

Postfix
Salary Trend

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

Salary trend for Postfix in the UK

Postfix
Salary Histogram

The salary distribution of IT jobs citing Postfix over the 6 months to 23 September 2018.

Salary histogram for Postfix in the UK

Postfix
Top 12 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Postfix within the UK over the 6 months to 23 September 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
UK excluding London +17 17 £30,000 -22.58% 6
England +12 17 £56,500 +41.25% 7
London +29 7 £57,500 +21.05% 1
Scotland - 6 £30,000 -
South East -4 5 £26,500 -68.82% 4
South West -9 2 £49,500 +27.74%
East of England +22 1 £31,000 -
Midlands +19 1 - - 1
West Midlands +17 1 - - 1
North East - 1 - - 1
Wales - 1 £40,000 -
North of England - 1 - - 1

For the 6 months to 23 September 2018, IT jobs citing Postfix also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads with a requirement for Postfix.

1 24 (100.00%) Linux
2 19 (79.17%) Apache
3 15 (62.50%) Subversion
4 14 (58.33%) Firewall
5 12 (50.00%) Unix
5 12 (50.00%) CentOS
5 12 (50.00%) Open Source
6 11 (45.83%) Git (software)
6 11 (45.83%) LAMP
7 10 (41.67%) Debian
7 10 (41.67%) PostgreSQL
8 9 (37.50%) Ubuntu
9 8 (33.33%) nginx
9 8 (33.33%) Dovecot
9 8 (33.33%) Red Hat
9 8 (33.33%) MySQL
9 8 (33.33%) VPN
9 8 (33.33%) Infrastructure Engineering
10 7 (29.17%) iptables
11 6 (25.00%) Wireshark
11 6 (25.00%) New Media
11 6 (25.00%) Kerberos
11 6 (25.00%) OpenBSD
11 6 (25.00%) Software Engineering
11 6 (25.00%) Problem-Solving
12 5 (20.83%) Proxmox
12 5 (20.83%) Phabricator
12 5 (20.83%) Ansible
12 5 (20.83%) Software Delivery
12 5 (20.83%) 802.1X

Postfix
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 19 (79.17%) Apache
2 8 (33.33%) nginx
3 2 (8.33%) Tomcat
4 1 (4.17%) lighttpd
4 1 (4.17%) Traffic Server
Cloud Services
1 2 (8.33%) OpenShift
2 1 (4.17%) Amazon AWS
2 1 (4.17%) Amazon EC2
2 1 (4.17%) Amazon S3
2 1 (4.17%) Cloud Computing
2 1 (4.17%) G Suite
2 1 (4.17%) GitHub
2 1 (4.17%) Google Cloud Platform
2 1 (4.17%) Route 53
Communications & Networking
1 14 (58.33%) Firewall
2 8 (33.33%) VPN
3 6 (25.00%) Kerberos
3 6 (25.00%) Wireshark
4 5 (20.83%) Asterisk PBX
4 5 (20.83%) Ethernet
4 5 (20.83%) H.323
4 5 (20.83%) Network Security
4 5 (20.83%) PBX
4 5 (20.83%) TCP/IP
4 5 (20.83%) VLAN
4 5 (20.83%) VoIP
5 1 (4.17%) Cisco ASA
5 1 (4.17%) DNS
5 1 (4.17%) FTP
5 1 (4.17%) IPsec
5 1 (4.17%) LAN
5 1 (4.17%) SSL
5 1 (4.17%) tcpdump
5 1 (4.17%) WAN
Database & Business Intelligence
1 10 (41.67%) PostgreSQL
2 8 (33.33%) MySQL
3 2 (8.33%) MariaDB
4 1 (4.17%) Amazon RDS
4 1 (4.17%) MongoDB
Development Applications
1 15 (62.50%) Subversion
2 11 (45.83%) Git (software)
3 5 (20.83%) Phabricator
4 4 (16.67%) Cucumber
5 3 (12.50%) RSpec
6 1 (4.17%) Atlassian Bamboo
6 1 (4.17%) Jenkins
General
1 1 (4.17%) Publishing
Job Titles
1 10 (41.67%) Administrator
1 10 (41.67%) Linux Administrator
1 10 (41.67%) Linux Systems Administrator
1 10 (41.67%) Systems Administrator
2 8 (33.33%) Infrastructure Engineer
3 7 (29.17%) Linux Engineer
4 6 (25.00%) Unix Administrator
4 6 (25.00%) Unix Linux Systems Administrator
4 6 (25.00%) Unix Systems Administrator
5 5 (20.83%) IT Engineer
5 5 (20.83%) IT Infrastructure Engineer
6 3 (12.50%) Linux Systems Engineer
6 3 (12.50%) Systems Engineer
7 2 (8.33%) Senior Infrastructure Engineer
7 2 (8.33%) Support Engineer
7 2 (8.33%) Systems Support
7 2 (8.33%) Systems Support Engineer
7 2 (8.33%) Technical Engineer
7 2 (8.33%) Technical Support
7 2 (8.33%) Technical Support Engineer
Libraries, Frameworks & Software Standards
1 11 (45.83%) LAMP
2 5 (20.83%) 802.1X
2 5 (20.83%) FreeSWITCH
3 3 (12.50%) HTML
3 3 (12.50%) LAPP Stack
3 3 (12.50%) Ruby on Rails
4 2 (8.33%) LDAP
4 2 (8.33%) LEMP Stack
5 1 (4.17%) ActiveMQ
5 1 (4.17%) Anaconda
5 1 (4.17%) AngularJS
5 1 (4.17%) React
5 1 (4.17%) Vue.js
Miscellaneous
1 6 (25.00%) New Media
2 5 (20.83%) Robotics
3 2 (8.33%) Data Centre
4 1 (4.17%) Clustering
4 1 (4.17%) Linux Command Line
Operating Systems
1 24 (100.00%) Linux
2 12 (50.00%) CentOS
2 12 (50.00%) Unix
3 10 (41.67%) Debian
4 9 (37.50%) Ubuntu
5 6 (25.00%) OpenBSD
6 5 (20.83%) Windows
7 2 (8.33%) Red Hat Enterprise Linux
8 1 (4.17%) FreeBSD
8 1 (4.17%) Solaris
Processes & Methodologies
1 12 (50.00%) Open Source
2 8 (33.33%) Infrastructure Engineering
3 6 (25.00%) Problem-Solving
3 6 (25.00%) Software Engineering
4 5 (20.83%) Software Delivery
5 3 (12.50%) ITIL
5 3 (12.50%) Load Balancing
5 3 (12.50%) Server Hardening
6 2 (8.33%) Proactive Management
6 2 (8.33%) Problem Management
7 1 (4.17%) BDD
7 1 (4.17%) Continuous Deployment
7 1 (4.17%) Continuous Integration
7 1 (4.17%) Data Protection
7 1 (4.17%) Disaster Recovery
7 1 (4.17%) OO
7 1 (4.17%) OOP
7 1 (4.17%) SDLC
7 1 (4.17%) Service Delivery
7 1 (4.17%) Test Automation
Programming Languages
1 5 (20.83%) Bash Shell
1 5 (20.83%) Java
1 5 (20.83%) Perl
1 5 (20.83%) Python
2 4 (16.67%) C++
3 3 (12.50%) C
3 3 (12.50%) JavaScript
3 3 (12.50%) Ruby
3 3 (12.50%) SQL
4 2 (8.33%) Shell Script
5 1 (4.17%) C#
5 1 (4.17%) PHP
Qualifications
1 5 (20.83%) Security Cleared
2 1 (4.17%) RHCE
System Software
1 8 (33.33%) Dovecot
2 7 (29.17%) iptables
3 5 (20.83%) QEMU
3 5 (20.83%) VirtualBox
3 5 (20.83%) Xen
4 3 (12.50%) Docker
5 2 (8.33%) Ceph
6 1 (4.17%) Active Directory
6 1 (4.17%) Varnish
6 1 (4.17%) vSphere
Systems Management
1 5 (20.83%) Ansible
1 5 (20.83%) Proxmox
2 4 (16.67%) Puppet
3 3 (12.50%) Galera Cluster
3 3 (12.50%) HAProxy
4 2 (8.33%) Kubernetes
4 2 (8.33%) Nagios
5 1 (4.17%) Cacti
5 1 (4.17%) Cobbler
5 1 (4.17%) Opscode Chef
5 1 (4.17%) Red Hat Spacewalk
5 1 (4.17%) SELinux
Vendors
1 8 (33.33%) Red Hat
2 5 (20.83%) Microsoft
3 4 (16.67%) VMware
4 2 (8.33%) Cisco
4 2 (8.33%) Juniper
4 2 (8.33%) Scality
5 1 (4.17%) Google
5 1 (4.17%) NetApp