Job Vacancy Trend Salary Trend Salary Histogram Job Locations Skill Sets
Period
to 5 March 2021

The following table provides summary statistics for permanent job vacancies advertised in England 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 5 March 2021 with a comparison to the same period in the previous 2 years.

Postfix
UK > England
6 months to
5 Mar 2021		 Same period 2020 Same period 2019
Rank 763 942 1044
Rank change year-on-year +179 +102 +106
Permanent jobs citing Postfix 24 32 56
As % of all permanent jobs advertised in England 0.035% 0.028% 0.040%
As % of the System Software category 0.19% 0.16% 0.25%
Number of salaries quoted 19 38 46
Median annual salary £42,500 £70,000 £56,500
Median salary % change year-on-year -39.29% +23.89% +13.00%
10th Percentile £29,500 £38,175 £43,750
90th Percentile £73,750 £77,500 £75,000
UK median annual salary £52,500 £70,000 £55,750
% change year-on-year -25.00% +25.56% +11.50%

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 advertised in England with a requirement for system software skills.

All System Software Skills
England
Permanent vacancies with a requirement for system software skills 12,731 19,590 22,401
As % of all permanent IT jobs advertised in England 18.61% 17.16% 15.93%
Number of salaries quoted 10,618 16,332 18,546
Median annual salary £55,000 £50,000 £50,000
Median salary % change year-on-year +10.00% - +11.11%
10th Percentile £29,750 £26,000 £25,750
90th Percentile £90,000 £86,250 £83,750
UK median annual salary £55,000 £50,000 £50,000
% change year-on-year +10.00% - +11.11%

Postfix
Job Vacancy Trend in England

Job postings citing Postfix as a proportion of all IT jobs advertised in England.

Job vacancy trend for Postfix in England

Postfix
Salary Trend in England

3-month moving average salary quoted in jobs citing Postfix in England.

Salary trend for Postfix in England

Postfix
Salary Histogram in England

Salary distribution for jobs citing Postfix in England over the 6 months to 5 March 2021.

Salary histogram for Postfix in England

Postfix
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Postfix within the England region over the 6 months to 5 March 2021. 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
London +181 18 £42,500 -43.33% 2
South East +139 3 £30,000 -57.14% 4
Midlands +41 2 £40,000 -44.83%
East Midlands - 2 £40,000 -
East of England - 1 £70,000 - 1
Postfix
UK

For the 6 months to 5 March 2021, 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 across the England region with a requirement for Postfix.

1 16 (66.67%) Continuous Integration
1 16 (66.67%) Open Source
2 15 (62.50%) Bash Shell
2 15 (62.50%) Linux
3 12 (50.00%) Apache
3 12 (50.00%) Migration
3 12 (50.00%) PostgreSQL
3 12 (50.00%) Agile Software Development
3 12 (50.00%) AWS
3 12 (50.00%) Ansible
4 11 (45.83%) Git (software)
5 10 (41.67%) Puppet
5 10 (41.67%) Perl
5 10 (41.67%) C
5 10 (41.67%) SQL Server
5 10 (41.67%) Microsoft
5 10 (41.67%) HP
5 10 (41.67%) KVM
5 10 (41.67%) Data Centre
6 9 (37.50%) SonarQube
6 9 (37.50%) Microservices
6 9 (37.50%) Spring Cloud
6 9 (37.50%) VPN
6 9 (37.50%) JUnit
6 9 (37.50%) Java
6 9 (37.50%) PHP
6 9 (37.50%) SOAP
6 9 (37.50%) Web Services
6 9 (37.50%) Windows
6 9 (37.50%) TDD

Postfix
Co-occurring IT Skills in England 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 (50.00%) Apache
2 9 (37.50%) nginx
3 7 (29.17%) ejabberd
3 7 (29.17%) IIS
3 7 (29.17%) Tomcat
Cloud Services
1 12 (50.00%) AWS
2 9 (37.50%) Amazon EC2
3 4 (16.67%) Amazon SQS
4 3 (12.50%) Azure
4 3 (12.50%) Datadog
4 3 (12.50%) IaaS
4 3 (12.50%) Slack
Communications & Networking
1 9 (37.50%) Firewall
1 9 (37.50%) VPN
2 8 (33.33%) DNS
3 7 (29.17%) Asterisk PBX
3 7 (29.17%) BGP
3 7 (29.17%) Diameter Protocol
3 7 (29.17%) Internet
3 7 (29.17%) LAN
3 7 (29.17%) PBX
3 7 (29.17%) SNMP
4 3 (12.50%) DHCP
4 3 (12.50%) FTP
4 3 (12.50%) NAS
4 3 (12.50%) SAN
4 3 (12.50%) SSL
5 2 (8.33%) HTTPS
5 2 (8.33%) Reverse Proxy
5 2 (8.33%) TCP/IP
Database & Business Intelligence
1 12 (50.00%) PostgreSQL
2 10 (41.67%) SQL Server
3 4 (16.67%) Amazon RDS
4 2 (8.33%) Redis
Development Applications
1 11 (45.83%) Git (software)
2 9 (37.50%) DbUnit
2 9 (37.50%) Jenkins
2 9 (37.50%) jMock
2 9 (37.50%) JUnit
2 9 (37.50%) Maven
2 9 (37.50%) Mockito
2 9 (37.50%) SonarQube
3 3 (12.50%) Atlassian Bamboo
3 3 (12.50%) JIRA
General
1 7 (29.17%) Games
2 4 (16.67%) Public Sector
3 3 (12.50%) Retail
Job Titles
1 9 (37.50%) Developer
1 9 (37.50%) Java Developer
2 7 (29.17%) Network Engineer
2 7 (29.17%) Network Systems Engineer
2 7 (29.17%) Systems Engineer
3 3 (12.50%) Full Stack Developer
4 2 (8.33%) Administrator
4 2 (8.33%) Junior
4 2 (8.33%) Linux Administrator
4 2 (8.33%) Linux Systems Administrator
4 2 (8.33%) Platform Engineer
4 2 (8.33%) SC Cleared Java Developer
4 2 (8.33%) Systems Administrator
5 1 (4.17%) Infrastructure Engineer
5 1 (4.17%) Linux Engineer
5 1 (4.17%) Linux Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 9 (37.50%) ActiveMQ
1 9 (37.50%) AngularJS
1 9 (37.50%) Hibernate
1 9 (37.50%) PowerMock
1 9 (37.50%) RESTful
1 9 (37.50%) SOAP
1 9 (37.50%) Spring
1 9 (37.50%) Spring Cloud
1 9 (37.50%) Web Services
2 8 (33.33%) REST
3 7 (29.17%) XMPP
4 5 (20.83%) React
5 4 (16.67%) JPA
6 3 (12.50%) LDAP
7 2 (8.33%) LAMP
Miscellaneous
1 10 (41.67%) Data Centre
2 7 (29.17%) Analytical Skills
3 3 (12.50%) Device Driver
3 3 (12.50%) Linux Command Line
3 3 (12.50%) NHS
Operating Systems
1 15 (62.50%) Linux
2 9 (37.50%) Windows
3 7 (29.17%) Debian
4 5 (20.83%) Unix
5 3 (12.50%) VMS
6 2 (8.33%) CentOS
6 2 (8.33%) Fedora
6 2 (8.33%) Red Hat Enterprise Linux
6 2 (8.33%) Ubuntu
6 2 (8.33%) Windows Server
6 2 (8.33%) Windows Server 2012
6 2 (8.33%) Windows Server 2016
Processes & Methodologies
1 16 (66.67%) Continuous Integration
1 16 (66.67%) Open Source
2 12 (50.00%) Agile Software Development
2 12 (50.00%) Migration
3 9 (37.50%) BDD
3 9 (37.50%) BPMN
3 9 (37.50%) Microservices
3 9 (37.50%) Scrum
3 9 (37.50%) TDD
4 8 (33.33%) DevOps
5 7 (29.17%) Architectural Design
5 7 (29.17%) Computer Science
5 7 (29.17%) High Availability
5 7 (29.17%) Load Balancing
5 7 (29.17%) Penetration Testing
5 7 (29.17%) Risk Assessment
6 4 (16.67%) Biometrics
6 4 (16.67%) Kanban
7 3 (12.50%) Performance Monitoring
7 3 (12.50%) Software Engineering
Programming Languages
1 15 (62.50%) Bash Shell
2 10 (41.67%) C
2 10 (41.67%) Perl
3 9 (37.50%) Java
3 9 (37.50%) PHP
4 6 (25.00%) Python
4 6 (25.00%) SQL
5 3 (12.50%) AWK
5 3 (12.50%) PowerShell
5 3 (12.50%) sed
Qualifications
1 8 (33.33%) SC Cleared
1 8 (33.33%) Security Cleared
2 7 (29.17%) Computer Science Degree
2 7 (29.17%) Degree
3 3 (12.50%) RHCE
3 3 (12.50%) RHCSA
Quality Assurance & Compliance
1 3 (12.50%) SLA
System Software
1 10 (41.67%) KVM
2 7 (29.17%) iptables
2 7 (29.17%) Kamailio
2 7 (29.17%) QEMU
3 5 (20.83%) VMware Infrastructure
4 3 (12.50%) Docker
4 3 (12.50%) Firmware
4 3 (12.50%) OCFS2
4 3 (12.50%) Oracle RAC
4 3 (12.50%) qmail
4 3 (12.50%) Samba
4 3 (12.50%) Sendmail
4 3 (12.50%) Veritas Cluster Server
4 3 (12.50%) Veritas Volume Manager
4 3 (12.50%) Xen
5 2 (8.33%) NFS
Systems Management
1 12 (50.00%) Ansible
2 10 (41.67%) Puppet
3 9 (37.50%) HAProxy
4 7 (29.17%) Galera Cluster
4 7 (29.17%) ZABBIX
5 3 (12.50%) Failover Clustering
5 3 (12.50%) Kubernetes
5 3 (12.50%) SELinux
5 3 (12.50%) Terraform
Vendors
1 10 (41.67%) HP
1 10 (41.67%) Microsoft
2 8 (33.33%) Red Hat
3 7 (29.17%) Cisco
3 7 (29.17%) GENBAND
3 7 (29.17%) Juniper
3 7 (29.17%) Mitel
3 7 (29.17%) Nortel
3 7 (29.17%) Percona
3 7 (29.17%) SonicWALL
4 5 (20.83%) VMware
5 3 (12.50%) Black Duck
5 3 (12.50%) Oracle