Period
to 17 June 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 17 June 2018 with a comparison to the same period in the previous 2 years.

Postfix
UK
6 months to
17 Jun 2018
Same period 2017 Same period 2016
Rank 1158 1113 1221
Rank change year-on-year -45 +108 -18
Permanent jobs citing Postfix 35 52 85
As % of all permanent IT jobs advertised in the UK 0.020% 0.030% 0.042%
As % of the System Software category 0.14% 0.24% 0.34%
Number of salaries quoted 30 39 45
UK median annual salary £50,000 £40,000 £47,500
Median salary % change year-on-year +25.00% -15.79% +2.15%
10th Percentile £27,225 £30,000 £31,250
90th Percentile £68,750 £64,000 £57,000
UK excluding London median annual salary £40,000 £40,000 £40,000

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 24,523 21,408 25,018
As % of all permanent IT jobs advertised in the UK 14.27% 12.45% 12.46%
Number of salaries quoted 19,878 17,997 21,180
UK median annual salary £47,500 £42,500 £41,500
Median salary % change year-on-year +11.76% +2.41% +3.75%
10th Percentile £25,000 £23,750 £23,000
90th Percentile £80,000 £75,000 £70,000
UK excluding London median annual salary £41,500 £37,500 £37,500
% change year-on-year +10.67% - +2.74%

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 17 June 2018.

Salary histogram for Postfix in the UK

Postfix
Top 13 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 17 June 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
England -26 28 £50,000 +25.00% 5
UK excluding London +6 27 £40,000 - 3
South West -10 8 £50,000 +33.33%
London -13 8 £57,500 +27.78% 3
South East -5 6 £40,750 -29.13% 1
Scotland - 6 £30,000 - 1
North of England +5 3 £40,000 +33.33%
West Midlands +8 2 - -
Midlands -2 2 - - 1
Yorkshire - 2 £40,000 -
East of England 0 1 £31,000 +3.33%
North East - 1 - -
Wales - 1 £40,000 -

For the 6 months to 17 June 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 34 (97.14%) Linux
2 25 (71.43%) Apache
3 20 (57.14%) Git (software)
4 18 (51.43%) CentOS
5 17 (48.57%) MySQL
5 17 (48.57%) Debian
6 16 (45.71%) LAMP
6 16 (45.71%) nginx
6 16 (45.71%) Subversion
7 15 (42.86%) Puppet
8 14 (40.00%) Dovecot
9 13 (37.14%) Bash Shell
9 13 (37.14%) Firewall
9 13 (37.14%) Red Hat
10 12 (34.29%) Perl
10 12 (34.29%) Ansible
11 11 (31.43%) Docker
11 11 (31.43%) PostgreSQL
11 11 (31.43%) VMware
11 11 (31.43%) Ubuntu
12 10 (28.57%) Open Source
12 10 (28.57%) Unix
12 10 (28.57%) Python
12 10 (28.57%) MariaDB
12 10 (28.57%) LEMP Stack
13 8 (22.86%) iptables
13 8 (22.86%) Kubernetes
13 8 (22.86%) OpenShift
13 8 (22.86%) Ceph
14 7 (20.00%) VoIP

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 25 (71.43%) Apache
2 16 (45.71%) nginx
3 3 (8.57%) Confluence
3 3 (8.57%) Tomcat
4 2 (5.71%) uWSGI
5 1 (2.86%) JBoss
5 1 (2.86%) lighttpd
Cloud Services
1 8 (22.86%) OpenShift
2 2 (5.71%) Amazon AWS
3 1 (2.86%) Amazon EC2
3 1 (2.86%) Amazon S3
3 1 (2.86%) AWS CloudFormation
3 1 (2.86%) Cloud Computing
3 1 (2.86%) Datadog
3 1 (2.86%) G Suite
3 1 (2.86%) Google Cloud Platform
3 1 (2.86%) Route 53
3 1 (2.86%) SaaS
Communications & Networking
1 13 (37.14%) Firewall
2 7 (20.00%) Network Security
2 7 (20.00%) VLAN
2 7 (20.00%) VoIP
2 7 (20.00%) VPN
3 6 (17.14%) Wireshark
4 5 (14.29%) Asterisk PBX
4 5 (14.29%) Ethernet
4 5 (14.29%) H.323
4 5 (14.29%) Kerberos
4 5 (14.29%) PBX
4 5 (14.29%) TCP/IP
5 4 (11.43%) SSL
6 3 (8.57%) Cisco ASA
6 3 (8.57%) Cisco IOS
6 3 (8.57%) DNS
7 2 (5.71%) FTP
7 2 (5.71%) HTTP
7 2 (5.71%) SNMP
7 2 (5.71%) SSH
Database & Business Intelligence
1 17 (48.57%) MySQL
2 11 (31.43%) PostgreSQL
3 10 (28.57%) MariaDB
4 1 (2.86%) Amazon RDS
4 1 (2.86%) NoSQL
Development Applications
1 20 (57.14%) Git (software)
2 16 (45.71%) Subversion
3 5 (14.29%) Phabricator
4 4 (11.43%) JIRA
5 3 (8.57%) Cucumber
5 3 (8.57%) RSpec
6 2 (5.71%) Atlassian Bamboo
6 2 (5.71%) Vagrant
7 1 (2.86%) Jenkins
7 1 (2.86%) Maven
7 1 (2.86%) Sonatype Nexus
General
1 2 (5.71%) Telecoms
Job Titles
1 13 (37.14%) Administrator
1 13 (37.14%) Linux Administrator
1 13 (37.14%) Linux Engineer
1 13 (37.14%) Linux Systems Administrator
1 13 (37.14%) Systems Administrator
2 10 (28.57%) Linux Systems Engineer
2 10 (28.57%) Systems Engineer
3 8 (22.86%) Infrastructure Engineer
4 5 (14.29%) IT Engineer
4 5 (14.29%) IT Infrastructure Engineer
4 5 (14.29%) Unix Administrator
4 5 (14.29%) Unix Linux Systems Administrator
4 5 (14.29%) Unix Systems Administrator
5 4 (11.43%) DevOps Engineer
5 4 (11.43%) Senior Linux Engineer
6 3 (8.57%) Cloud Engineer
6 3 (8.57%) Cloud Infrastructure Engineer
6 3 (8.57%) Linux DevOps Engineer
6 3 (8.57%) Senior Cloud Engineer
6 3 (8.57%) Senior Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 16 (45.71%) LAMP
2 10 (28.57%) LEMP Stack
3 7 (20.00%) FreeSWITCH
4 5 (14.29%) 802.1X
5 3 (8.57%) HTML
5 3 (8.57%) PHP-FPM
5 3 (8.57%) Ruby on Rails
6 2 (5.71%) Django
6 2 (5.71%) LAPP Stack
6 2 (5.71%) WSGI
7 1 (2.86%) LDAP
7 1 (2.86%) YAML
Miscellaneous
1 5 (14.29%) New Media
1 5 (14.29%) Robotics
2 4 (11.43%) Linux Command Line
3 2 (5.71%) Data Centre
3 2 (5.71%) Private Cloud
3 2 (5.71%) Replication
3 2 (5.71%) Wiki
4 1 (2.86%) Computer Science
4 1 (2.86%) Management Information System
4 1 (2.86%) Self-Motivation
Operating Systems
1 34 (97.14%) Linux
2 18 (51.43%) CentOS
3 17 (48.57%) Debian
4 11 (31.43%) Ubuntu
5 10 (28.57%) Unix
6 6 (17.14%) Windows
7 5 (14.29%) OpenBSD
8 1 (2.86%) FreeBSD
8 1 (2.86%) Red Hat Enterprise Linux
Processes & Methodologies
1 10 (28.57%) Open Source
2 7 (20.00%) Software Engineering
3 6 (17.14%) Problem-Solving
4 5 (14.29%) DevOps
4 5 (14.29%) Software Delivery
5 4 (11.43%) ITIL
5 4 (11.43%) Server Hardening
6 3 (8.57%) Agile Software Development
6 3 (8.57%) Configuration Management
7 2 (5.71%) B2B
7 2 (5.71%) BCP
7 2 (5.71%) Change Control
7 2 (5.71%) Cybersecurity
7 2 (5.71%) Data Security
7 2 (5.71%) Line Management
7 2 (5.71%) Load Balancing
7 2 (5.71%) Proactive Management
7 2 (5.71%) Problem Management
7 2 (5.71%) Release Management
7 2 (5.71%) Service Delivery
Programming Languages
1 13 (37.14%) Bash Shell
2 12 (34.29%) Perl
3 10 (28.57%) Python
4 5 (14.29%) Java
4 5 (14.29%) PHP
5 4 (11.43%) Ruby
5 4 (11.43%) Shell Script
6 3 (8.57%) C
6 3 (8.57%) C++
6 3 (8.57%) JavaScript
6 3 (8.57%) SQL
Qualifications
1 7 (20.00%) Security Cleared
2 2 (5.71%) RHCE
3 1 (2.86%) Degree
Quality Assurance & Compliance
1 1 (2.86%) PCI DSS
1 1 (2.86%) QA
System Software
1 14 (40.00%) Dovecot
2 11 (31.43%) Docker
3 8 (22.86%) Ceph
3 8 (22.86%) iptables
4 6 (17.14%) VirtualBox
5 5 (14.29%) QEMU
5 5 (14.29%) Xen
6 3 (8.57%) VMware Infrastructure
7 2 (5.71%) BIND 9
7 2 (5.71%) Kamailio
7 2 (5.71%) VMware ESXi
8 1 (2.86%) SpamAssassin
8 1 (2.86%) Varnish
Systems Management
1 15 (42.86%) Puppet
2 12 (34.29%) Ansible
3 8 (22.86%) Kubernetes
4 7 (20.00%) Galera Cluster
5 5 (14.29%) HAProxy
5 5 (14.29%) Nagios
5 5 (14.29%) Proxmox
6 3 (8.57%) Cacti
7 2 (5.71%) Munin
7 2 (5.71%) Red Hat Spacewalk
7 2 (5.71%) SELinux
7 2 (5.71%) ZABBIX
8 1 (2.86%) Terraform
8 1 (2.86%) yum
Vendors
1 13 (37.14%) Red Hat
2 11 (31.43%) VMware
3 7 (20.00%) Scality
4 5 (14.29%) Microsoft
5 3 (8.57%) Cisco
6 2 (5.71%) Dell
6 2 (5.71%) Juniper
7 1 (2.86%) Google