The following table provides summary statistics for contract job vacancies with a requirement for Varnish skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Varnish over the 3 months to 29 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.

Varnish
UK
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 597 626 573
Rank change year-on-year +29 -53  
Contract jobs citing Varnish 8 22 52
As % of all contract IT jobs advertised in the UK 0.018% 0.041% 0.097%
As % of the System Software category 0.16% 0.37% 0.95%
Number of daily rates quoted 6 17 32
Median daily rate £400 £428 £426
Median daily rate % change year-on-year -6.43% +0.29%  
90% offered a daily rate of more than £375 £310 £387
10% offered a daily rate of more than £450 £500 £548
UK excluding London median daily rate £400 £450 £380
% change year-on-year -11.11% +18.42%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Varnish 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 5045 5890 5499
As % of all contract IT job vacancies advertised in the UK 11.15% 10.94% 10.29%
Number of daily rates quoted 3208 3585 3024
Median daily rate £400 £395 £375
Median daily rate % change year-on-year +1.26% +5.33%  
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 £350 £369 £350
% change year-on-year -5.08% +5.35%  
Number of hourly rates quoted 355 459 634
Median hourly rate £17.00 £16.00 £16.50
Median hourly rate % change year-on-year +6.25% -3.03%  
90% offered a hourly rate of more than £10.50 £11.00 £11.00
10% offered a hourly rate of more than £47.00 £45.00 £34.50
UK excluding London median hourly rate £16.00 £16.50 £15.85
% change year-on-year -3.03% +4.10%  

Varnish
Job Vacancy Trend

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

Job vacancy trend for Varnish in the UK

Varnish
Contractor Daily Rate Trend

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

Contractor daily rate trend for Varnish in the UK

Varnish
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Varnish over the 3 months to 29 March 2017.

Contractor daily rate histogram for Varnish in the UK

Varnish
Contractor Hourly Rate Trend

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

Contractor hourly rate trend for Varnish in the UK

Varnish
Top 12 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Varnish within the UK over the 3 months to 29 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 +36 8 £400 -5.88% 8
North West - 3 £400 - 1
Manchester - 3 £400 - 1
South East +16 2 £398 -11.61%
East Sussex - 2 £398 -
Hove - 2 £398 -
South West - 2 £355 -
London +20 1 £500 +17.64% 6
City of London -4 1 £500 +16.95% 2
Swindon - 1 £355 -
Bristol - 1 - -
Wiltshire - 1 £355 -

For the 6 months to 29 March 2017, IT contractor jobs citing Varnish 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 Varnish.

1 13 (61.90%) PHP
2 9 (42.86%) Linux
3 8 (38.10%) JavaScript
4 7 (33.33%) CSS
5 6 (28.57%) HTML
5 6 (28.57%) Java
5 6 (28.57%) MySQL
5 6 (28.57%) Apache
5 6 (28.57%) Agile Software Development
5 6 (28.57%) TDD
5 6 (28.57%) Git (software)
6 5 (23.81%) Postfix
6 5 (23.81%) Bash Shell
6 5 (23.81%) BDD
6 5 (23.81%) Mockito
6 5 (23.81%) Memcached
6 5 (23.81%) High Availability
6 5 (23.81%) Bitbucket
6 5 (23.81%) Elasticsearch
6 5 (23.81%) DevOps
6 5 (23.81%) iptables
6 5 (23.81%) MVC
6 5 (23.81%) Spring
6 5 (23.81%) Maven
6 5 (23.81%) Squid
6 5 (23.81%) LDAP
6 5 (23.81%) E-Commerce
6 5 (23.81%) DNS
6 5 (23.81%) Nagios
6 5 (23.81%) JUnit

Varnish
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 6 (28.57%) Apache
2 5 (23.81%) Elasticsearch
3 4 (19.05%) Apache Solr
3 4 (19.05%) Drupal
4 3 (14.29%) Confluence
4 3 (14.29%) Tomcat
5 1 (4.76%) CMS
5 1 (4.76%) nginx
Applications
1 1 (4.76%) HipChat
Business Applications
1 2 (9.52%) Magento
Cloud Services
1 2 (9.52%) Amazon AWS
2 1 (4.76%) Amazon ElastiCache
2 1 (4.76%) GitHub
2 1 (4.76%) Sage Pay
Communications & Networking
1 5 (23.81%) DNS
1 5 (23.81%) LDAP
2 1 (4.76%) Firewall
2 1 (4.76%) Reverse Proxy
2 1 (4.76%) SAN
Database & Business Intelligence
1 6 (28.57%) MySQL
2 2 (9.52%) Redis
3 1 (4.76%) MariaDB
3 1 (4.76%) PostgreSQL
Development Applications
1 6 (28.57%) Git (software)
2 5 (23.81%) Bitbucket
2 5 (23.81%) JUnit
2 5 (23.81%) Maven
2 5 (23.81%) Mockito
3 4 (19.05%) JIRA
4 3 (14.29%) Atlassian Bamboo
4 3 (14.29%) Cucumber
4 3 (14.29%) Mercurial
5 2 (9.52%) Checkstyle
5 2 (9.52%) Cobertura
5 2 (9.52%) FindBugs
5 2 (9.52%) Gradle
5 2 (9.52%) Subversion
5 2 (9.52%) TestNG
5 2 (9.52%) Vagrant
6 1 (4.76%) Grunt
6 1 (4.76%) Jasmine
6 1 (4.76%) Talend Open Studio
6 1 (4.76%) webpack
General
1 4 (19.05%) Finance
2 1 (4.76%) Marketing
2 1 (4.76%) Pharmaceutical
2 1 (4.76%) Retail
Job Titles
1 11 (52.38%) Developer
2 6 (28.57%) Systems Engineer
3 5 (23.81%) Java Developer
3 5 (23.81%) Linux Engineer
3 5 (23.81%) Linux Systems Engineer
4 3 (14.29%) Drupal Developer
5 2 (9.52%) Applications Developer
5 2 (9.52%) Java Applications Developer
5 2 (9.52%) Java Web Applications Developer
5 2 (9.52%) Web Applications Developer
6 1 (4.76%) Agile Developer
6 1 (4.76%) AWS DevOps
6 1 (4.76%) Development Specialist
6 1 (4.76%) E-Commerce Developer
6 1 (4.76%) IT Engineer
6 1 (4.76%) Lead Developer
6 1 (4.76%) Lead DevOps
6 1 (4.76%) PHP Developer
6 1 (4.76%) Technical Leader
6 1 (4.76%) Web Developer
Libraries, Frameworks & Software Standards
1 7 (33.33%) CSS
2 6 (28.57%) HTML
3 5 (23.81%) Memcached
3 5 (23.81%) SOAP
3 5 (23.81%) Spring
4 3 (14.29%) Hibernate
4 3 (14.29%) LAMP
4 3 (14.29%) RabbitMQ
4 3 (14.29%) REST
4 3 (14.29%) Spring MVC
5 2 (9.52%) Sass
5 2 (9.52%) Spring Boot
5 2 (9.52%) Spring Cloud
5 2 (9.52%) Spring Integration
5 2 (9.52%) Spring Security
5 2 (9.52%) Symfony
5 2 (9.52%) Web Services
5 2 (9.52%) XHTML
5 2 (9.52%) XSL
6 1 (4.76%) Silex
Miscellaneous
1 5 (23.81%) Data Centre
2 1 (4.76%) BYOD
2 1 (4.76%) CMDB
2 1 (4.76%) Management Information System
2 1 (4.76%) Private Cloud
2 1 (4.76%) Public Cloud
2 1 (4.76%) User Experience
Operating Systems
1 9 (42.86%) Linux
2 1 (4.76%) Ubuntu
Processes & Methodologies
1 6 (28.57%) Agile Software Development
1 6 (28.57%) TDD
2 5 (23.81%) BDD
2 5 (23.81%) DevOps
2 5 (23.81%) E-Commerce
2 5 (23.81%) High Availability
2 5 (23.81%) MVC
3 4 (19.05%) Service Management
4 3 (14.29%) Scrum
4 3 (14.29%) Unit Testing
4 3 (14.29%) Web Development
5 2 (9.52%) Configuration Management
5 2 (9.52%) Microservices
5 2 (9.52%) Migration
5 2 (9.52%) OO
5 2 (9.52%) OO PHP
5 2 (9.52%) Performance Tuning
5 2 (9.52%) Process Improvement
5 2 (9.52%) Project Management
6 1 (4.76%) Front End Development
Programming Languages
1 13 (61.90%) PHP
2 8 (38.10%) JavaScript
3 6 (28.57%) Java
4 5 (23.81%) Bash Shell
4 5 (23.81%) Perl
5 1 (4.76%) Go
5 1 (4.76%) Python
5 1 (4.76%) Scala
5 1 (4.76%) SQL
System Software
1 5 (23.81%) iptables
1 5 (23.81%) Postfix
1 5 (23.81%) Squid
2 3 (14.29%) Docker
3 1 (4.76%) NFS
Systems Management
1 5 (23.81%) Nagios
2 3 (14.29%) Consul
2 3 (14.29%) Puppet
2 3 (14.29%) Terraform
3 1 (4.76%) Opscode Chef
3 1 (4.76%) ZABBIX
Vendors
1 2 (9.52%) Zend
2 1 (4.76%) PayPal
2 1 (4.76%) Salesforce Marketing Cloud
2 1 (4.76%) Salesforce.com
2 1 (4.76%) Talend