The following table provides summary statistics for contract job vacancies with a requirement for Postfix skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Postfix over the 3 months to 28 March 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Postfix
UK
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 596 635 614
Rank change year-on-year +39 -21  
Contract jobs citing Postfix 12 4 28
As % of all contract IT jobs advertised in the UK 0.027% 0.007% 0.052%
As % of the System Software category 0.24% 0.068% 0.50%
Number of daily rates quoted 6 4 19
Median daily rate £400 £425 £425
Median daily rate % change year-on-year -5.88% -  
90% offered a daily rate of more than £350 £320 £236
10% offered a daily rate of more than £544 £500 £450
UK excluding London median daily rate £400 £425 £380
% change year-on-year -5.88% +11.84%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Postfix is in the system software skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for system software skills.

Contract System Software Skills
UK
Contract job vacancies with a requirement for system software skills 5018 5842 5553
As % of all contract IT job vacancies advertised in the UK 11.13% 10.90% 10.28%
Number of daily rates quoted 3194 3561 3055
Median daily rate £400 £390 £375
Median daily rate % change year-on-year +2.56% +4.00%  
90% offered a daily rate of more than £190 £200 £185
10% offered a daily rate of more than £575 £535 £525
UK excluding London median daily rate £351 £365 £350
% change year-on-year -3.97% +4.28%  
Number of hourly rates quoted 350 452 637
Median hourly rate £16.88 £16.00 £16.50
Median hourly rate % change year-on-year +5.46% -3.03%  
90% offered a hourly rate of more than £10.40 £11.00 £11.00
10% offered a hourly rate of more than £47.00 £45.00 £34.20
UK excluding London median hourly rate £15.93 £16.50 £15.85
% change year-on-year -3.45% +4.10%  

Postfix
Job Vacancy Trend

The job posting trend of jobs advertised citing Postfix as a proportion of all contract or permanent IT jobs with a match in the System Software category.

Job vacancy trend for Postfix in the UK

Postfix
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Postfix.

Contractor daily rate trend for Postfix in the UK

Postfix
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Postfix over the 3 months to 28 March 2017.

Contractor daily rate histogram for Postfix in the UK

Postfix
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Postfix.

Contractor hourly rate trend for Postfix in the UK

Postfix
Top 5 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Postfix within the UK over the 3 months to 28 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +39 12 £400 -5.88% 4
London - 8 £500 -
North West +30 4 £400 -5.88% 1
Manchester - 4 £400 -
Croydon - 1 - -

For the 6 months to 28 March 2017, IT contractor jobs citing Postfix also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for Postfix.

1 37 (86.05%) Linux
2 36 (83.72%) Apache
3 32 (74.42%) DNS
3 32 (74.42%) Squid
4 30 (69.77%) Service Management
5 29 (67.44%) Ansible
6 28 (65.12%) VMware
6 28 (65.12%) OpenLDAP
7 27 (62.79%) Git (software)
7 27 (62.79%) Continuous Integration
7 27 (62.79%) Amazon AWS
7 27 (62.79%) Puppet
7 27 (62.79%) Jenkins
7 27 (62.79%) Agile Software Development
7 27 (62.79%) Maven
7 27 (62.79%) Ant
7 27 (62.79%) Docker
7 27 (62.79%) SonarQube
7 27 (62.79%) Continuous Delivery
8 26 (60.47%) Kubernetes
8 26 (60.47%) Elastic Stack
8 26 (60.47%) Terraform
8 26 (60.47%) Sonatype
8 26 (60.47%) Sonatype Nexus
8 26 (60.47%) logstash
8 26 (60.47%) Kibana
8 26 (60.47%) Liquibase
8 26 (60.47%) Rancher
8 26 (60.47%) Docker Swarm
8 26 (60.47%) JUnit

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 (83.72%) Apache
2 26 (60.47%) Elasticsearch
3 23 (53.49%) Confluence
4 13 (30.23%) nginx
5 5 (11.63%) Tomcat
6 3 (6.98%) IIS
7 2 (4.65%) IBM Notes
8 1 (2.33%) SharePoint
8 1 (2.33%) Skype for Business
Applications
1 19 (44.19%) HipChat
2 2 (4.65%) MS Excel
Cloud Services
1 27 (62.79%) Amazon AWS
2 4 (9.30%) Amazon CloudWatch
2 4 (9.30%) Amazon EC2
2 4 (9.30%) Amazon ELB
2 4 (9.30%) Amazon S3
2 4 (9.30%) Virtual Private Cloud
3 1 (2.33%) IaaS
3 1 (2.33%) Office 365
3 1 (2.33%) PaaS
Communications & Networking
1 32 (74.42%) DNS
2 28 (65.12%) OpenLDAP
3 26 (60.47%) OpenVPN
3 26 (60.47%) SSH
4 14 (32.56%) IPsec
4 14 (32.56%) Reverse Proxy
4 14 (32.56%) VPN
5 6 (13.95%) TCP/IP
6 5 (11.63%) LDAP
7 4 (9.30%) HTTP
8 3 (6.98%) SSL
9 2 (4.65%) S/MIME
10 1 (2.33%) Firewall
10 1 (2.33%) LAN
10 1 (2.33%) VLAN
10 1 (2.33%) WAN
Database & Business Intelligence
1 23 (53.49%) PostgreSQL
2 18 (41.86%) Hadoop
3 14 (32.56%) Oracle Database
3 14 (32.56%) Oracle Database 11g
4 9 (20.93%) MySQL
5 4 (9.30%) Amazon RDS
6 1 (2.33%) Apache Cassandra
6 1 (2.33%) MongoDB
6 1 (2.33%) NoSQL
6 1 (2.33%) RDBMS
6 1 (2.33%) Relational Database
6 1 (2.33%) Riak
6 1 (2.33%) SQL Server
Development Applications
1 27 (62.79%) Ant
1 27 (62.79%) Git (software)
1 27 (62.79%) Jenkins
1 27 (62.79%) Maven
1 27 (62.79%) SonarQube
2 26 (60.47%) JIRA
2 26 (60.47%) JUnit
2 26 (60.47%) Liquibase
2 26 (60.47%) Sonatype Nexus
3 19 (44.19%) JIRA Agile
4 8 (18.60%) Bitbucket
5 2 (4.65%) GitLab
6 1 (2.33%) Artifactory
6 1 (2.33%) GoCD
6 1 (2.33%) Team Foundation Server
General
1 5 (11.63%) Telecoms
Job Titles
1 10 (23.26%) DevOps Engineer
2 8 (18.60%) Consultant
3 7 (16.28%) Linux Engineer
3 7 (16.28%) Linux Systems Engineer
3 7 (16.28%) Systems Engineer
4 6 (13.95%) Administrator
4 6 (13.95%) Systems Administrator
5 5 (11.63%) Linux Administrator
5 5 (11.63%) Linux Systems Administrator
6 4 (9.30%) AWS DevOps
6 4 (9.30%) AWS Engineer
6 4 (9.30%) Senior DevOps
6 4 (9.30%) Senior DevOps Engineer
7 1 (2.33%) 3rd Line Engineer
7 1 (2.33%) 3rd Line Network Engineer
7 1 (2.33%) 3rd Line Support Engineer
7 1 (2.33%) DevOps Consultant
7 1 (2.33%) Senior Network Support
7 1 (2.33%) Senior Support Engineer
7 1 (2.33%) Systems Architect
Libraries, Frameworks & Software Standards
1 26 (60.47%) Elastic Stack
1 26 (60.47%) MCollective
2 21 (48.84%) Software Packaging
3 5 (11.63%) Memcached
4 4 (9.30%) REST
5 2 (4.65%) LAMP
5 2 (4.65%) XMPP
6 1 (2.33%) .NET
Miscellaneous
1 6 (13.95%) Data Centre
2 4 (9.30%) Linux Command Line
3 2 (4.65%) PKI
4 1 (2.33%) Fintech
Operating Systems
1 37 (86.05%) Linux
2 26 (60.47%) CentOS
3 13 (30.23%) RancherOS
3 13 (30.23%) VyOS
4 6 (13.95%) Debian
4 6 (13.95%) Red Hat Enterprise Linux
4 6 (13.95%) Ubuntu
5 2 (4.65%) Unix
6 1 (2.33%) Windows
Processes & Methodologies
1 30 (69.77%) Service Management
2 27 (62.79%) Agile Software Development
2 27 (62.79%) Continuous Delivery
2 27 (62.79%) Continuous Integration
3 26 (60.47%) Configuration Management
4 25 (58.14%) Scrum
5 24 (55.81%) DevOps
6 23 (53.49%) Identity Management
7 21 (48.84%) Stakeholder Management
7 21 (48.84%) Workflow
8 8 (18.60%) Coaching
9 4 (9.30%) Case Management
9 4 (9.30%) High Availability
9 4 (9.30%) Load Balancing
10 2 (4.65%) Change Management
10 2 (4.65%) Incident Management
10 2 (4.65%) ITIL
10 2 (4.65%) Problem Management
11 1 (2.33%) Disaster Recovery
11 1 (2.33%) E-Commerce
Programming Languages
1 23 (53.49%) Shell Script
2 9 (20.93%) Bash Shell
3 7 (16.28%) Perl
3 7 (16.28%) PHP
4 6 (13.95%) Java
5 4 (9.30%) Groovy
5 4 (9.30%) Ruby
6 2 (4.65%) PowerShell
6 2 (4.65%) Python
6 2 (4.65%) SQL
Qualifications
1 23 (53.49%) Security Cleared
2 22 (51.16%) SC Cleared
3 5 (11.63%) DV Cleared
4 4 (9.30%) CTC Cleared
5 1 (2.33%) BPSS Clearance
5 1 (2.33%) CCNA
5 1 (2.33%) CCNP
5 1 (2.33%) Cisco Certification
5 1 (2.33%) Degree
Quality Assurance & Compliance
1 1 (2.33%) PCI DSS
System Software
1 32 (74.42%) Squid
2 27 (62.79%) Docker
3 26 (60.47%) vCloud
4 6 (13.95%) iptables
5 5 (11.63%) Varnish
6 4 (9.30%) Virtual Machines
7 2 (4.65%) Active Directory
7 2 (4.65%) Sendmail
7 2 (4.65%) Xen
8 1 (2.33%) KVM
8 1 (2.33%) Microsoft Virtual Server
8 1 (2.33%) Virtual Servers
Systems Management
1 29 (67.44%) Ansible
2 27 (62.79%) Puppet
3 26 (60.47%) Docker Swarm
3 26 (60.47%) Kibana
3 26 (60.47%) Kubernetes
3 26 (60.47%) logstash
3 26 (60.47%) Rancher
3 26 (60.47%) Terraform
3 26 (60.47%) ZABBIX
4 15 (34.88%) HAProxy
5 14 (32.56%) Consul
5 14 (32.56%) Packer
6 5 (11.63%) Nagios
7 4 (9.30%) Rsyslog
7 4 (9.30%) Sysdig
8 2 (4.65%) FreeIPA
8 2 (4.65%) Red Hat Spacewalk
9 1 (2.33%) Icinga
9 1 (2.33%) Opscode Chef
Vendors
1 28 (65.12%) VMware
2 26 (60.47%) Sonatype
3 18 (41.86%) Oracle
4 14 (32.56%) AppDynamics
5 13 (30.23%) Vyatta
6 6 (13.95%) Red Hat
7 4 (9.30%) Atlassian
8 3 (6.98%) Cisco
9 2 (4.65%) BT
9 2 (4.65%) Lotus
9 2 (4.65%) SolarWinds
10 1 (2.33%) Fortinet
10 1 (2.33%) Microsoft
10 1 (2.33%) New Relic