Period
to 18 February 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 18 February 2018 with a comparison to the same period in the previous 2 years.

Postfix
UK
6 months to
18 Feb 2018
Same period 2017 Same period 2016
Rank 1160 1123 1214
Rank change year-on-year -37 +91 -4
Permanent jobs citing Postfix 34 55 95
As % of all permanent IT jobs advertised in the UK 0.020% 0.031% 0.045%
As % of the System Software category 0.15% 0.26% 0.38%
Number of salaries quoted 32 47 64
UK median annual salary £50,000 £37,500 £52,500
Median salary % change year-on-year +33.33% -28.57% +10.53%
10th Percentile £37,500 £28,000 £24,000
90th Percentile £68,750 £60,000 £71,625
UK excluding London median annual salary £45,500 £37,500 £47,500
% change year-on-year +21.33% -21.05% +18.75%

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 23,194 21,435 24,828
As % of all permanent IT jobs advertised in the UK 13.31% 12.27% 11.78%
Number of salaries quoted 19,158 17,768 20,938
UK median annual salary £45,000 £42,500 £40,000
Median salary % change year-on-year +5.88% +6.25% -
10th Percentile £24,250 £23,250 £22,750
90th Percentile £77,448 £72,500 £67,500
UK excluding London median annual salary £40,000 £37,500 £37,500
% change year-on-year +6.67% - +7.14%

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 18 February 2018.

Salary histogram for Postfix in the UK

Postfix
Top 9 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 18 February 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 -31 34 £50,000 +33.33% 4
UK excluding London -21 18 £45,500 +21.33% 6
London +14 16 £67,500 +12.50%
Yorkshire +21 8 £40,000 -
North of England +2 8 £40,000 +42.86%
South East +1 6 £62,500 +40.45% 2
West Midlands +10 2 £36,500 +12.31%
Midlands 0 2 £36,500 +12.31%
South West -8 2 £50,000 +33.33% 2

For the 6 months to 18 February 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 33 (97.06%) Linux
2 24 (70.59%) Bash Shell
3 22 (64.71%) nginx
4 20 (58.82%) MySQL
5 19 (55.88%) Perl
5 19 (55.88%) Puppet
6 17 (50.00%) Python
6 17 (50.00%) Nagios
7 16 (47.06%) Configuration Management
7 16 (47.06%) VMware
7 16 (47.06%) PHP
7 16 (47.06%) Git (software)
7 16 (47.06%) Debian
7 16 (47.06%) DevOps
7 16 (47.06%) LEMP Stack
8 15 (44.12%) JIRA
8 15 (44.12%) Cacti
8 15 (44.12%) DNS
9 14 (41.18%) Telecoms
9 14 (41.18%) Confluence
9 14 (41.18%) HAProxy
9 14 (41.18%) MariaDB
10 13 (38.24%) Linux Command Line
10 13 (38.24%) PHP-FPM
10 13 (38.24%) VMware Infrastructure
10 13 (38.24%) Release Management
10 13 (38.24%) Apache
10 13 (38.24%) SMTP
10 13 (38.24%) SSL
10 13 (38.24%) Cisco

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 22 (64.71%) nginx
2 14 (41.18%) Confluence
3 13 (38.24%) Apache
4 12 (35.29%) uWSGI
5 3 (8.82%) lighttpd
6 1 (2.94%) Elasticsearch
6 1 (2.94%) IIS
6 1 (2.94%) JBoss
6 1 (2.94%) SharePoint
6 1 (2.94%) Tomcat
6 1 (2.94%) WordPress
Applications
1 1 (2.94%) Microsoft Office
Cloud Services
1 2 (5.88%) Amazon AWS
1 2 (5.88%) OpenShift
2 1 (2.94%) AWS CloudFormation
2 1 (2.94%) Datadog
2 1 (2.94%) SaaS
Communications & Networking
1 15 (44.12%) DNS
2 13 (38.24%) SMTP
2 13 (38.24%) SSL
3 12 (35.29%) BGP
3 12 (35.29%) Cisco ASA
3 12 (35.29%) Cisco IOS
3 12 (35.29%) HTTP
3 12 (35.29%) SNMP
3 12 (35.29%) VLAN
3 12 (35.29%) VoIP
4 2 (5.88%) IMAP
4 2 (5.88%) VPN
5 1 (2.94%) Cisco Nexus
5 1 (2.94%) DHCP
5 1 (2.94%) FTP
5 1 (2.94%) Network Security
5 1 (2.94%) SAN
5 1 (2.94%) SSH
5 1 (2.94%) TCP/IP
Database & Business Intelligence
1 20 (58.82%) MySQL
2 14 (41.18%) MariaDB
3 6 (17.65%) PostgreSQL
4 1 (2.94%) NoSQL
Development Applications
1 16 (47.06%) Git (software)
2 15 (44.12%) JIRA
3 12 (35.29%) Subversion
4 2 (5.88%) Vagrant
5 1 (2.94%) Atlassian Bamboo
5 1 (2.94%) Bitbucket
5 1 (2.94%) Jenkins
5 1 (2.94%) Maven
5 1 (2.94%) Sonatype Nexus
General
1 14 (41.18%) Telecoms
2 1 (2.94%) Aerospace
2 1 (2.94%) Law
2 1 (2.94%) Legal
Job Titles
1 15 (44.12%) DevOps Engineer
2 14 (41.18%) Linux Engineer
3 13 (38.24%) Linux Systems Engineer
4 12 (35.29%) Senior DevOps
4 12 (35.29%) Senior DevOps Engineer
4 12 (35.29%) Systems Engineer
5 11 (32.35%) DevOps Systems Engineer
5 11 (32.35%) Linux DevOps Engineer
5 11 (32.35%) Linux/Unix DevOps
6 10 (29.41%) Administrator
6 10 (29.41%) Linux Administrator
6 10 (29.41%) Linux Systems Administrator
6 10 (29.41%) Senior Linux Engineer
6 10 (29.41%) Systems Administrator
7 9 (26.47%) Senior Linux Systems Engineer
7 9 (26.47%) Senior Systems Engineer
8 4 (11.76%) Operations Engineer
8 4 (11.76%) Technical Engineer
8 4 (11.76%) Technical Operations Engineer
9 3 (8.82%) Unix Systems Administrator
Libraries, Frameworks & Software Standards
1 16 (47.06%) LEMP Stack
2 13 (38.24%) PHP-FPM
3 12 (35.29%) Django
3 12 (35.29%) FreeSWITCH
3 12 (35.29%) WSGI
4 5 (14.71%) LAMP
4 5 (14.71%) LDAP
5 4 (11.76%) LAPP Stack
6 1 (2.94%) Laravel
6 1 (2.94%) YAML
6 1 (2.94%) Zend Framework
Miscellaneous
1 13 (38.24%) Linux Command Line
2 12 (35.29%) Private Cloud
2 12 (35.29%) Replication
2 12 (35.29%) Wiki
3 1 (2.94%) Analytical Skills
3 1 (2.94%) Computer Science
3 1 (2.94%) Data Centre
3 1 (2.94%) Management Information System
3 1 (2.94%) Mobile App
Operating Systems
1 33 (97.06%) Linux
2 16 (47.06%) Debian
3 12 (35.29%) Ubuntu
4 8 (23.53%) CentOS
5 3 (8.82%) FreeBSD
5 3 (8.82%) Unix
6 2 (5.88%) Windows
7 1 (2.94%) Amazon Linux
7 1 (2.94%) Fedora
7 1 (2.94%) Red Hat Enterprise Linux
7 1 (2.94%) Windows Server 2008
7 1 (2.94%) Windows Server 2012
Processes & Methodologies
1 16 (47.06%) Configuration Management
1 16 (47.06%) DevOps
2 13 (38.24%) Release Management
3 12 (35.29%) BCP
4 8 (23.53%) Data Security
5 7 (20.59%) B2B
6 3 (8.82%) Agile Software Development
6 3 (8.82%) Disaster Recovery
7 2 (5.88%) Change Control
7 2 (5.88%) Continuous Integration
8 1 (2.94%) API Design
8 1 (2.94%) Collaborative Working
8 1 (2.94%) Cybersecurity
8 1 (2.94%) Data Protection
8 1 (2.94%) Line Management
8 1 (2.94%) Matrix Management
8 1 (2.94%) Prototyping
8 1 (2.94%) Rapid Prototyping
8 1 (2.94%) Server Hardening
8 1 (2.94%) Stakeholder Engagement
Programming Languages
1 24 (70.59%) Bash Shell
2 19 (55.88%) Perl
3 17 (50.00%) Python
4 16 (47.06%) PHP
5 2 (5.88%) Shell Script
6 1 (2.94%) Java
6 1 (2.94%) Ruby
Qualifications
1 7 (20.59%) Security Cleared
2 4 (11.76%) Degree
3 1 (2.94%) RHCE
Quality Assurance & Compliance
1 2 (5.88%) QA
2 1 (2.94%) ISO/IEC 27001
2 1 (2.94%) PCI DSS
System Software
1 13 (38.24%) VMware Infrastructure
2 12 (35.29%) BIND 9
2 12 (35.29%) Kamailio
2 12 (35.29%) VMware ESXi
3 9 (26.47%) Dovecot
4 6 (17.65%) Docker
5 3 (8.82%) Varnish
6 2 (5.88%) Ceph
6 2 (5.88%) SpamAssassin
7 1 (2.94%) Active Directory
7 1 (2.94%) iptables
7 1 (2.94%) VirtualBox
Systems Management
1 19 (55.88%) Puppet
2 17 (50.00%) Nagios
3 15 (44.12%) Cacti
4 14 (41.18%) HAProxy
5 12 (35.29%) Munin
6 3 (8.82%) Ansible
7 2 (5.88%) Galera Cluster
7 2 (5.88%) Kubernetes
7 2 (5.88%) Rancher
7 2 (5.88%) Terraform
7 2 (5.88%) ZABBIX
8 1 (2.94%) Red Hat Spacewalk
8 1 (2.94%) SCCM
8 1 (2.94%) SELinux
8 1 (2.94%) Simpana
8 1 (2.94%) yum
Vendors
1 16 (47.06%) VMware
2 13 (38.24%) Cisco
3 12 (35.29%) Dell
4 4 (11.76%) Red Hat
5 2 (5.88%) Scality
6 1 (2.94%) CommVault
6 1 (2.94%) F5
6 1 (2.94%) Microsoft
6 1 (2.94%) Zend