Period
to 20 July 2019

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 20 July 2019 with a comparison to the same period in the previous 2 years.

Postfix
UK
6 months to
20 Jul 2019
Same period 2018 Same period 2017
Rank 1048 1159 1160
Rank change year-on-year +111 +1 +49
Permanent jobs citing Postfix 44 32 62
As % of all permanent IT jobs advertised in the UK 0.030% 0.018% 0.035%
As % of the System Software category 0.18% 0.13% 0.28%
Number of salaries quoted 34 28 44
UK median annual salary £60,000 £50,000 £40,000
Median salary % change year-on-year +20.00% +25.00% -15.79%
10th Percentile £35,750 £26,675 £30,000
90th Percentile £75,000 £58,750 £62,125
UK excluding London median annual salary £60,000 £31,000 £40,000
% change year-on-year +93.55% -22.50% -

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 with a requirement for system software skills.

All System Software Skills
UK
Permanent vacancies with a requirement for system software skills 24,817 25,271 22,351
As % of all permanent IT jobs advertised in the UK 16.99% 14.43% 12.61%
Number of salaries quoted 20,404 20,444 18,830
UK median annual salary £50,000 £47,500 £43,000
Median salary % change year-on-year +5.26% +10.47% +1.18%
10th Percentile £25,750 £24,825 £24,000
90th Percentile £85,000 £80,000 £75,000
UK excluding London median annual salary £42,500 £42,000 £37,500
% change year-on-year +1.19% +12.00% -

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 20 July 2019.

Salary histogram for Postfix in the UK

Postfix
Top 8 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 20 July 2019. 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 +110 39 £60,000 +20.00% 9
UK excluding London +85 30 £60,000 +93.55% 7
East of England +109 22 £60,000 +93.55% 2
London +80 13 £57,500 - 2
Wales +12 4 £40,000 -
Midlands +41 3 £65,000 - 1
West Midlands +18 3 £65,000 - 1
South East +29 1 - - 4

For the 6 months to 20 July 2019, 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 42 (95.45%) Linux
2 36 (81.82%) Apache
3 28 (63.64%) Red Hat Enterprise Linux
4 26 (59.09%) Puppet
5 25 (56.82%) DNS
5 25 (56.82%) VMware
6 24 (54.55%) LAMP
6 24 (54.55%) VMware Infrastructure
7 20 (45.45%) Bash Shell
7 20 (45.45%) Internet
7 20 (45.45%) iptables
8 19 (43.18%) Computer Science Degree
8 19 (43.18%) Samba
8 19 (43.18%) SMTP
8 19 (43.18%) NFS
8 19 (43.18%) Perl
8 19 (43.18%) Python
8 19 (43.18%) VMware Server
8 19 (43.18%) Degree
9 15 (34.09%) MySQL
10 13 (29.55%) Problem-Solving
11 12 (27.27%) CentOS
12 10 (22.73%) VPN
12 10 (22.73%) SLA
12 10 (22.73%) Firewall
13 9 (20.45%) RHCE
14 8 (18.18%) Red Hat
14 8 (18.18%) Unix
14 8 (18.18%) Open Source
15 7 (15.91%) Subversion

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 36 (81.82%) Apache
2 1 (2.27%) nginx
2 1 (2.27%) Tomcat
2 1 (2.27%) WordPress
Business Applications
1 1 (2.27%) Sparx Enterprise Architect
Cloud Services
1 3 (6.82%) Amazon AWS
1 3 (6.82%) Amazon EC2
1 3 (6.82%) Cloud Computing
2 2 (4.55%) Amazon SQS
3 1 (2.27%) Amazon ELB
3 1 (2.27%) Amazon S3
3 1 (2.27%) AWS CodePipeline
3 1 (2.27%) IaaS
3 1 (2.27%) SaaS
3 1 (2.27%) Virtual Private Cloud
Communications & Networking
1 25 (56.82%) DNS
2 20 (45.45%) Internet
3 19 (43.18%) SMTP
4 10 (22.73%) Firewall
4 10 (22.73%) VPN
5 5 (11.36%) FTP
5 5 (11.36%) SSH
5 5 (11.36%) SSL
6 1 (2.27%) DHCP
6 1 (2.27%) HTTP
6 1 (2.27%) HTTPS
6 1 (2.27%) LAN
6 1 (2.27%) Network Security
6 1 (2.27%) TCP/IP
6 1 (2.27%) WAN
Database & Business Intelligence
1 15 (34.09%) MySQL
2 5 (11.36%) Oracle Database
3 3 (6.82%) PostgreSQL
4 2 (4.55%) Amazon RDS
4 2 (4.55%) MariaDB
5 1 (2.27%) SQL Server
Development Applications
1 7 (15.91%) Subversion
2 3 (6.82%) Git (software)
2 3 (6.82%) Jenkins
3 2 (4.55%) DbUnit
3 2 (4.55%) jMock
3 2 (4.55%) JUnit
3 2 (4.55%) Maven
3 2 (4.55%) Mockito
3 2 (4.55%) SonarQube
General
1 4 (9.09%) Finance
2 2 (4.55%) Legal
Job Titles
1 17 (38.64%) Administrator
1 17 (38.64%) Infrastructure Specialist
1 17 (38.64%) Linux Administrator
1 17 (38.64%) Linux Specialist
1 17 (38.64%) Linux Systems Administrator
2 16 (36.36%) Systems Administrator
3 7 (15.91%) Linux Engineer
4 5 (11.36%) Developer
5 4 (9.09%) Linux Systems Engineer
6 3 (6.82%) Infrastructure Engineer
6 3 (6.82%) JavaScript Developer
6 3 (6.82%) JavaScript Engineer
6 3 (6.82%) Linux Developer
6 3 (6.82%) Linux Server Engineer
6 3 (6.82%) Server Engineer
6 3 (6.82%) Systems Developer
6 3 (6.82%) Systems Engineer
7 2 (4.55%) Infrastructure Security Engineer
7 2 (4.55%) Java Developer
7 2 (4.55%) Security Engineer
Libraries, Frameworks & Software Standards
1 24 (54.55%) LAMP
2 3 (6.82%) Node.js
2 3 (6.82%) Web Services
3 2 (4.55%) ActiveMQ
3 2 (4.55%) Middleware
3 2 (4.55%) PowerMock
3 2 (4.55%) RESTful
3 2 (4.55%) SOAP
3 2 (4.55%) Spring
3 2 (4.55%) Spring Cloud
4 1 (2.27%) LDAP
4 1 (2.27%) LEMP Stack
Miscellaneous
1 6 (13.64%) Private Cloud
2 5 (11.36%) Clustering
3 3 (6.82%) Public Cloud
4 2 (4.55%) Replication
5 1 (2.27%) Linux Command Line
5 1 (2.27%) N-Tier
Operating Systems
1 42 (95.45%) Linux
2 28 (63.64%) Red Hat Enterprise Linux
3 12 (27.27%) CentOS
4 8 (18.18%) Unix
5 6 (13.64%) OpenBSD
6 5 (11.36%) Debian
6 5 (11.36%) Ubuntu
6 5 (11.36%) Windows
6 5 (11.36%) Windows Server
6 5 (11.36%) Windows Server 2003
6 5 (11.36%) Windows Server 2012
7 1 (2.27%) VyOS
Processes & Methodologies
1 13 (29.55%) Problem-Solving
2 8 (18.18%) Open Source
3 7 (15.91%) Service Delivery
4 5 (11.36%) ITIL
4 5 (11.36%) ITIL V3
4 5 (11.36%) Problem Management
4 5 (11.36%) Task Automation
5 3 (6.82%) Infrastructure Engineering
6 2 (4.55%) Agile Software Development
6 2 (4.55%) BDD
6 2 (4.55%) Continuous Improvement
6 2 (4.55%) Continuous Integration
6 2 (4.55%) Data Protection
6 2 (4.55%) Due Diligence
6 2 (4.55%) Kanban
6 2 (4.55%) KYC
6 2 (4.55%) Performance Tuning
6 2 (4.55%) Scrum
6 2 (4.55%) SIEM
6 2 (4.55%) TDD
Programming Languages
1 20 (45.45%) Bash Shell
2 19 (43.18%) Perl
2 19 (43.18%) Python
3 5 (11.36%) PHP
4 4 (9.09%) Java
5 3 (6.82%) JavaScript
6 2 (4.55%) ES6
6 2 (4.55%) Go
6 2 (4.55%) Shell Script
Qualifications
1 19 (43.18%) Computer Science Degree
1 19 (43.18%) Degree
2 9 (20.45%) RHCE
3 5 (11.36%) Microsoft Certification
4 2 (4.55%) LPIC
5 1 (2.27%) SC Cleared
5 1 (2.27%) Security Cleared
Quality Assurance & Compliance
1 10 (22.73%) SLA
System Software
1 24 (54.55%) VMware Infrastructure
2 20 (45.45%) iptables
3 19 (43.18%) NFS
3 19 (43.18%) Samba
3 19 (43.18%) VMware Server
4 4 (9.09%) qmail
4 4 (9.09%) Sendmail
5 2 (4.55%) vSphere
6 1 (2.27%) Active Directory
6 1 (2.27%) Docker
6 1 (2.27%) Hyper-V
Systems Management
1 26 (59.09%) Puppet
2 7 (15.91%) Nagios
3 5 (11.36%) Munin
3 5 (11.36%) vCenter Server
4 3 (6.82%) HAProxy
5 2 (4.55%) Nessus
6 1 (2.27%) Ansible
6 1 (2.27%) Opscode Chef
6 1 (2.27%) Red Hat Spacewalk
6 1 (2.27%) SELinux
6 1 (2.27%) Terraform
6 1 (2.27%) yum
Vendors
1 25 (56.82%) VMware
2 8 (18.18%) Red Hat
3 6 (13.64%) Microsoft
4 5 (11.36%) Clearswift
4 5 (11.36%) F5
4 5 (11.36%) Oracle
5 2 (4.55%) Cisco
5 2 (4.55%) Juniper
6 1 (2.27%) Sparx