Period
to 20 November 2017

The following table provides summary statistics for permanent job vacancies advertised in London 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 November 2017 with a comparison to the same period in the previous 2 years.

Postfix
England > London
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 812 824 879
Rank change year-on-year +12 +55 -2
Permanent jobs citing Postfix 33 19 46
As % of all permanent IT jobs advertised in London 0.044% 0.025% 0.052%
As % of the System Software category 0.33% 0.21% 0.47%
Number of salaries quoted 16 19 46
London median annual salary £58,750 £55,000 £47,500
Median salary % change year-on-year +6.82% +15.79% -5.00%
10th Percentile £42,500 £49,750 £36,250
90th Percentile £68,750 £67,500 £75,000
England median annual salary £50,000 £42,500 £47,500
% change year-on-year +17.65% -10.53% -2.06%

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 London with a requirement for system software skills.

All System Software Skills
London
Permanent vacancies with a requirement for system software skills 9957 9179 9718
As % of all permanent IT jobs advertised in London 13.25% 12.26% 10.91%
Number of salaries quoted 8445 7948 8373
London median annual salary £55,000 £50,000 £46,500
Median salary % change year-on-year +10.00% +7.53% +3.33%
10th Percentile £28,250 £27,500 £26,220
90th Percentile £85,000 £80,000 £75,000
England median annual salary £45,000 £42,500 £40,000
% change year-on-year +5.88% +6.25% -

Postfix
Job Vacancy Trend in London

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

Job vacancy trend for Postfix in London

Postfix
Salary Trend in London

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

Salary trend for Postfix in London

Postfix
Salary Histogram in London

The salary distribution of IT jobs citing Postfix in London over the 6 months to 20 November 2017.

Salary histogram for Postfix in London

Postfix
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Postfix within the London region over the 6 months to 20 November 2017. 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
West London +11 3 £50,000 -9.09%
Central London +7 3 £45,000 -10.00%
Postfix
England

For the 6 months to 20 November 2017, IT jobs citing Postfix also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the London region with a requirement for Postfix.

1 24 (72.73%) SMTP
2 19 (57.58%) Windows
2 19 (57.58%) Windows Server
3 18 (54.55%) Agile Software Development
3 18 (54.55%) Amazon AWS
3 18 (54.55%) Analytical Skills
4 17 (51.52%) Exchange Server 2010
4 17 (51.52%) Root Cause Analysis
4 17 (51.52%) PowerShell
4 17 (51.52%) SharePoint Server
4 17 (51.52%) Retail Banking
4 17 (51.52%) Wealth Management
4 17 (51.52%) Banking
4 17 (51.52%) Asset Management
4 17 (51.52%) Document Management
4 17 (51.52%) Investment Banking
4 17 (51.52%) Workflow
4 17 (51.52%) Finance
4 17 (51.52%) SharePoint
4 17 (51.52%) MS Exchange
4 17 (51.52%) Microsoft Office
4 17 (51.52%) Microsoft
4 17 (51.52%) Active Directory
4 17 (51.52%) Task Automation
5 16 (48.48%) Linux
6 15 (45.45%) MySQL
7 14 (42.42%) DNS
8 13 (39.39%) Telecoms
8 13 (39.39%) DevOps
9 12 (36.36%) Nagios

Postfix
Co-occurring IT Skills in London 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 17 (51.52%) Exchange Server 2010
1 17 (51.52%) MS Exchange
1 17 (51.52%) SharePoint
1 17 (51.52%) SharePoint Server
2 11 (33.33%) nginx
3 9 (27.27%) Apache
4 8 (24.24%) Confluence
5 7 (21.21%) uWSGI
6 1 (3.03%) Elasticsearch
6 1 (3.03%) WordPress
Applications
1 17 (51.52%) Microsoft Office
Cloud Services
1 18 (54.55%) Amazon AWS
Communications & Networking
1 24 (72.73%) SMTP
2 14 (42.42%) DNS
3 9 (27.27%) BGP
3 9 (27.27%) VoIP
4 7 (21.21%) Cisco ASA
4 7 (21.21%) Cisco IOS
4 7 (21.21%) HTTP
4 7 (21.21%) SNMP
4 7 (21.21%) SSL
4 7 (21.21%) VLAN
5 4 (12.12%) LDAP
5 4 (12.12%) VPN
6 3 (9.09%) MRTG
7 2 (6.06%) OSPF
7 2 (6.06%) RIP
8 1 (3.03%) Firewall
Database & Business Intelligence
1 15 (45.45%) MySQL
2 7 (21.21%) MariaDB
Development Applications
1 8 (24.24%) Git (software)
1 8 (24.24%) JIRA
1 8 (24.24%) Subversion
2 1 (3.03%) Bitbucket
General
1 17 (51.52%) Banking
1 17 (51.52%) Finance
1 17 (51.52%) Investment Banking
1 17 (51.52%) Retail Banking
2 13 (39.39%) Telecoms
3 1 (3.03%) Law
3 1 (3.03%) Legal
Job Titles
1 18 (54.55%) Team Leader
2 11 (33.33%) DevOps Engineer
3 10 (30.30%) Linux/Unix DevOps
4 8 (24.24%) DevOps Systems Engineer
4 8 (24.24%) Linux DevOps Engineer
4 8 (24.24%) Linux Engineer
4 8 (24.24%) Linux Systems Engineer
5 7 (21.21%) Administrator
5 7 (21.21%) Senior DevOps
5 7 (21.21%) Senior DevOps Engineer
5 7 (21.21%) Systems Administrator
5 7 (21.21%) Systems Engineer
6 6 (18.18%) DevOps Administrator
6 6 (18.18%) Linux Administrator
6 6 (18.18%) Linux DevOps Administrator
6 6 (18.18%) Linux Systems Administrator
7 4 (12.12%) Senior Linux Engineer
7 4 (12.12%) Senior Linux Systems Engineer
7 4 (12.12%) Senior Systems Engineer
8 3 (9.09%) 3rd Line Engineer
Libraries, Frameworks & Software Standards
1 7 (21.21%) Django
1 7 (21.21%) FreeSWITCH
1 7 (21.21%) LEMP Stack
1 7 (21.21%) PHP-FPM
1 7 (21.21%) WSGI
2 2 (6.06%) LAMP
3 1 (3.03%) Laravel
3 1 (3.03%) Zend Framework
Miscellaneous
1 18 (54.55%) Analytical Skills
2 7 (21.21%) Linux Command Line
2 7 (21.21%) Private Cloud
2 7 (21.21%) Replication
2 7 (21.21%) Wiki
3 2 (6.06%) Clustering
3 2 (6.06%) Data Centre
4 1 (3.03%) Mobile App
Operating Systems
1 19 (57.58%) Windows
1 19 (57.58%) Windows Server
2 16 (48.48%) Linux
3 11 (33.33%) Debian
4 7 (21.21%) Ubuntu
5 4 (12.12%) Unix
6 3 (9.09%) FreeBSD
6 3 (9.09%) Red Hat Enterprise Linux
7 1 (3.03%) Amazon Linux
7 1 (3.03%) CentOS
7 1 (3.03%) OpenBSD
Processes & Methodologies
1 18 (54.55%) Agile Software Development
2 17 (51.52%) Asset Management
2 17 (51.52%) Document Management
2 17 (51.52%) Root Cause Analysis
2 17 (51.52%) Task Automation
2 17 (51.52%) Wealth Management
2 17 (51.52%) Workflow
3 13 (39.39%) DevOps
4 8 (24.24%) Configuration Management
4 8 (24.24%) Release Management
5 7 (21.21%) BCP
6 4 (12.12%) Continuous Integration
7 3 (9.09%) Analytics
8 2 (6.06%) Data Protection
9 1 (3.03%) API Design
9 1 (3.03%) CRM
9 1 (3.03%) Information Security
9 1 (3.03%) Open Source
9 1 (3.03%) SOA
Programming Languages
1 17 (51.52%) PowerShell
2 9 (27.27%) PHP
3 8 (24.24%) Perl
4 7 (21.21%) Bash Shell
4 7 (21.21%) Python
5 1 (3.03%) C
Qualifications
1 1 (3.03%) CISM
1 1 (3.03%) CISSP
Quality Assurance & Compliance
1 1 (3.03%) GDPR
1 1 (3.03%) ISO/IEC 27001
1 1 (3.03%) QA
System Software
1 17 (51.52%) Active Directory
2 8 (24.24%) VMware Infrastructure
3 7 (21.21%) BIND 9
3 7 (21.21%) Kamailio
3 7 (21.21%) VMware ESXi
4 4 (12.12%) Docker
5 1 (3.03%) KVM
5 1 (3.03%) oVirt
5 1 (3.03%) PowerDNS
5 1 (3.03%) Xen
Systems Management
1 12 (36.36%) Nagios
2 10 (30.30%) Munin
2 10 (30.30%) Puppet
3 7 (21.21%) Cacti
3 7 (21.21%) HAProxy
4 4 (12.12%) Rancher
5 2 (6.06%) ZABBIX
6 1 (3.03%) Terraform
Vendors
1 17 (51.52%) Microsoft
2 9 (27.27%) Cisco
3 8 (24.24%) VMware
4 7 (21.21%) Dell
5 3 (9.09%) Red Hat
6 1 (3.03%) Zend