Period
to 20 July 2017

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Postfix skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Postfix over the 6 months to 20 July 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
England > London
6 months to
20 Jul 2017
Same period 2016 Same period 2015
Rank 566 575 595
Rank change year-on-year +9 +20 +3
Contract jobs citing Postfix 15 45 5
As % of all contract IT jobs advertised in London 0.036% 0.099% 0.011%
As % of the System Software category 0.33% 0.91% 0.11%
Number of daily rates quoted 4 19 3
London median daily rate £425 £475 £450
Median daily rate % change year-on-year -10.53% +5.56% +20.00%
10th Percentile £306 £342 £379
90th Percentile £566 £605 £470
England median daily rate £425 £375 £375
% change year-on-year +13.33% - -11.76%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England 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 advertised in London with a requirement for system software skills.

Contract System Software Skills
London
Contract job vacancies with a requirement for system software skills 4527 4937 4425
As % of all contract IT job vacancies advertised in London 10.84% 10.89% 9.61%
Number of daily rates quoted 3168 3482 2923
London median daily rate £475 £450 £375
Median daily rate % change year-on-year +5.56% +20.00% -
10th Percentile £185 £198 £165
90th Percentile £625 £600 £575
England median daily rate £425 £400 £350
% change year-on-year +6.25% +14.29% +7.69%
Number of hourly rates quoted 116 139 271
London median hourly rate £21.25 £14.90 £17.00
Median hourly rate % change year-on-year +42.62% -12.35% +3.34%
10th Percentile £12.88 £10.75 £11.25
90th Percentile £50.00 £30.20 £26.50
England median hourly rate £16.00 £15.25 £16.00
% change year-on-year +4.92% -4.69% +3.23%

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
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Postfix in London

Postfix
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Postfix in London over the 6 months to 20 July 2017.

Contractor daily rate histogram for Postfix in London

Postfix
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for Postfix in London

Postfix
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Postfix within the London region over the 6 months to 20 July 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Croydon 0 7 - -
Postfix
England

For the 6 months to 20 July 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 across the London region with a requirement for Postfix.

1 15 (100.00%) Linux
1 15 (100.00%) Apache
2 14 (93.33%) Ansible
3 13 (86.67%) VMware
3 13 (86.67%) OpenLDAP
4 12 (80.00%) Git (software)
4 12 (80.00%) Continuous Integration
4 12 (80.00%) Agile Software Development
4 12 (80.00%) PostgreSQL
4 12 (80.00%) Maven
4 12 (80.00%) Ant
4 12 (80.00%) DNS
4 12 (80.00%) Configuration Management
4 12 (80.00%) Docker
4 12 (80.00%) DevOps
4 12 (80.00%) Jenkins
4 12 (80.00%) Amazon AWS
4 12 (80.00%) Puppet
4 12 (80.00%) SonarQube
4 12 (80.00%) Continuous Delivery
5 11 (73.33%) Liquibase
5 11 (73.33%) Elastic Stack
5 11 (73.33%) Terraform
5 11 (73.33%) Sonatype
5 11 (73.33%) Sonatype Nexus
5 11 (73.33%) Kubernetes
5 11 (73.33%) Rancher
5 11 (73.33%) Docker Swarm
5 11 (73.33%) Confluence
5 11 (73.33%) OpenVPN

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 15 (100.00%) Apache
2 11 (73.33%) Confluence
2 11 (73.33%) Elasticsearch
3 8 (53.33%) Tomcat
4 3 (20.00%) IIS
Applications
1 1 (6.67%) HipChat
Cloud Services
1 12 (80.00%) Amazon AWS
2 10 (66.67%) Amazon CloudWatch
2 10 (66.67%) Amazon EC2
2 10 (66.67%) Amazon ELB
2 10 (66.67%) Amazon S3
2 10 (66.67%) Virtual Private Cloud
3 1 (6.67%) IaaS
3 1 (6.67%) Office 365
3 1 (6.67%) PaaS
Communications & Networking
1 13 (86.67%) OpenLDAP
2 12 (80.00%) DNS
3 11 (73.33%) OpenVPN
3 11 (73.33%) SSH
4 10 (66.67%) HTTP
5 1 (6.67%) Firewall
5 1 (6.67%) IPsec
5 1 (6.67%) LAN
5 1 (6.67%) SSL
5 1 (6.67%) TCP/IP
5 1 (6.67%) VLAN
5 1 (6.67%) VPN
5 1 (6.67%) WAN
Database & Business Intelligence
1 12 (80.00%) PostgreSQL
2 10 (66.67%) Amazon RDS
3 3 (20.00%) MySQL
4 1 (6.67%) Apache Cassandra
4 1 (6.67%) Hadoop
4 1 (6.67%) MongoDB
4 1 (6.67%) NoSQL
4 1 (6.67%) RDBMS
4 1 (6.67%) Relational Database
4 1 (6.67%) Riak
4 1 (6.67%) SQL Server
Development Applications
1 12 (80.00%) Ant
1 12 (80.00%) Git (software)
1 12 (80.00%) Jenkins
1 12 (80.00%) Maven
1 12 (80.00%) SonarQube
2 11 (73.33%) JIRA
2 11 (73.33%) JUnit
2 11 (73.33%) Liquibase
2 11 (73.33%) Sonatype Nexus
3 10 (66.67%) Bitbucket
4 2 (13.33%) GitLab
5 1 (6.67%) Arsenale Dataplane
5 1 (6.67%) Artifactory
5 1 (6.67%) GoCD
5 1 (6.67%) JIRA Agile
5 1 (6.67%) Team Foundation Server
Job Titles
1 11 (73.33%) DevOps Engineer
2 9 (60.00%) AWS DevOps
2 9 (60.00%) AWS DevOps Engineer
2 9 (60.00%) AWS Engineer
3 3 (20.00%) Administrator
3 3 (20.00%) Systems Administrator
4 2 (13.33%) Linux Administrator
4 2 (13.33%) Linux Systems Administrator
5 1 (6.67%) Architect
5 1 (6.67%) Consultant
5 1 (6.67%) DevOps Consultant
5 1 (6.67%) Junior
5 1 (6.67%) Junior DevOps
5 1 (6.67%) Junior DevOps Engineer
5 1 (6.67%) Systems Architect
Libraries, Frameworks & Software Standards
1 11 (73.33%) Elastic Stack
1 11 (73.33%) MCollective
2 10 (66.67%) REST
3 2 (13.33%) LAMP
4 1 (6.67%) .NET
4 1 (6.67%) Software Packaging
Miscellaneous
1 10 (66.67%) Linux Command Line
2 1 (6.67%) Data Centre
2 1 (6.67%) Fintech
Operating Systems
1 15 (100.00%) Linux
2 11 (73.33%) CentOS
3 1 (6.67%) Debian
3 1 (6.67%) Ubuntu
3 1 (6.67%) Windows
Processes & Methodologies
1 12 (80.00%) Agile Software Development
1 12 (80.00%) Configuration Management
1 12 (80.00%) Continuous Delivery
1 12 (80.00%) Continuous Integration
1 12 (80.00%) DevOps
2 11 (73.33%) Scrum
2 11 (73.33%) Service Management
2 11 (73.33%) Stakeholder Management
3 10 (66.67%) Coaching
3 10 (66.67%) Load Balancing
4 3 (20.00%) Identity Management
5 1 (6.67%) Case Management
5 1 (6.67%) Continuous Deployment
5 1 (6.67%) Disaster Recovery
5 1 (6.67%) Infrastructure Management
5 1 (6.67%) Microservices
5 1 (6.67%) Workflow
Programming Languages
1 10 (66.67%) Bash Shell
1 10 (66.67%) Groovy
1 10 (66.67%) Java
2 2 (13.33%) Perl
2 2 (13.33%) PHP
2 2 (13.33%) PowerShell
2 2 (13.33%) Python
3 1 (6.67%) Ruby
3 1 (6.67%) Shell Script
3 1 (6.67%) SQL
Qualifications
1 9 (60.00%) Security Cleared
2 8 (53.33%) SC Cleared
3 3 (20.00%) DV Cleared
4 1 (6.67%) BPSS Clearance
4 1 (6.67%) CTC Cleared
4 1 (6.67%) Degree
4 1 (6.67%) Master's Degree
Quality Assurance & Compliance
1 1 (6.67%) PCI DSS
System Software
1 12 (80.00%) Docker
2 11 (73.33%) Squid
2 11 (73.33%) vCloud
3 10 (66.67%) Virtual Machines
4 2 (13.33%) Active Directory
5 1 (6.67%) iptables
5 1 (6.67%) Xen
Systems Management
1 14 (93.33%) Ansible
2 12 (80.00%) Puppet
3 11 (73.33%) Docker Swarm
3 11 (73.33%) Kibana
3 11 (73.33%) Kubernetes
3 11 (73.33%) logstash
3 11 (73.33%) Rancher
3 11 (73.33%) Terraform
3 11 (73.33%) ZABBIX
4 10 (66.67%) Rsyslog
4 10 (66.67%) Sysdig
5 2 (13.33%) FreeIPA
5 2 (13.33%) HAProxy
5 2 (13.33%) Red Hat Spacewalk
6 1 (6.67%) Icinga
6 1 (6.67%) Opscode Chef
Vendors
1 13 (86.67%) VMware
2 11 (73.33%) Sonatype
3 3 (20.00%) Cisco
4 2 (13.33%) BT
4 2 (13.33%) SolarWinds
5 1 (6.67%) Fortinet
5 1 (6.67%) New Relic
5 1 (6.67%) Oracle