Period
to 19 November 2017

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for Varnish skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Varnish over the 6 months to 19 November 2017 with a comparison to the same period in the previous 2 years.

Varnish
England > London
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 774 705 646
Rank change year-on-year -69 -59 +29
Permanent jobs citing Varnish 70 146 284
As % of all permanent IT jobs advertised in London 0.094% 0.19% 0.32%
As % of the System Software category 0.71% 1.58% 2.93%
Number of salaries quoted 65 130 239
London median annual salary £62,500 £57,500 £50,000
Median salary % change year-on-year +8.70% +15.00% -4.76%
10th Percentile £45,000 £36,125 £36,250
90th Percentile £80,500 £73,000 £65,000
England median annual salary £60,000 £55,000 £50,000
% change year-on-year +9.09% +10.00% +5.26%

Varnish 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 9898 9266 9698
As % of all permanent IT jobs advertised in London 13.26% 12.27% 10.89%
Number of salaries quoted 8392 8020 8355
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% -

Varnish
Job Vacancy Trend in London

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

Job vacancy trend for Varnish in London

Varnish
Salary Trend in London

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

Salary trend for Varnish in London

Varnish
Salary Histogram in London

The salary distribution of IT jobs citing Varnish in London over the 6 months to 19 November 2017.

Salary histogram for Varnish in London

Varnish
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Varnish within the London region over the 6 months to 19 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 +28 11 £50,000 +66.67% 1
Central London +4 7 £65,000 +52.94%
South London +3 1 - -
Varnish
England

For the 6 months to 19 November 2017, IT jobs citing Varnish 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 Varnish.

1 56 (80.00%) Python
1 56 (80.00%) nginx
2 55 (78.57%) Linux
3 54 (77.14%) DevOps
4 46 (65.71%) Amazon AWS
5 45 (64.29%) Git (software)
6 43 (61.43%) MySQL
6 43 (61.43%) Apache
7 42 (60.00%) Ruby
7 42 (60.00%) Jenkins
8 41 (58.57%) Docker
9 38 (54.29%) Opscode Chef
10 35 (50.00%) HAProxy
10 35 (50.00%) Puppet
11 33 (47.14%) LEMP Stack
12 32 (45.71%) Redis
13 31 (44.29%) Bash Shell
14 29 (41.43%) Agile Software Development
15 27 (38.57%) LAMP
15 27 (38.57%) Unix
15 27 (38.57%) Elasticsearch
16 24 (34.29%) Ansible
17 21 (30.00%) Google Cloud Platform
17 21 (30.00%) E-Commerce
17 21 (30.00%) MongoDB
18 20 (28.57%) Firewall
19 19 (27.14%) Configuration Management
19 19 (27.14%) Open Source
19 19 (27.14%) Atlassian Bamboo
20 18 (25.71%) Apache Cassandra

Varnish
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 56 (80.00%) nginx
2 43 (61.43%) Apache
3 27 (38.57%) Elasticsearch
4 18 (25.71%) IIS
4 18 (25.71%) OpenStack
5 17 (24.29%) Cloud Foundry
5 17 (24.29%) CloudStack
6 13 (18.57%) Apache Solr
7 9 (12.86%) Drupal
8 3 (4.29%) CMS
8 3 (4.29%) Traffic Server
9 1 (1.43%) Confluence
9 1 (1.43%) Tomcat
Cloud Services
1 46 (65.71%) Amazon AWS
2 21 (30.00%) Google Cloud Platform
3 17 (24.29%) Microsoft Azure
4 6 (8.57%) Amazon EC2
4 6 (8.57%) Rackspace Cloud
5 5 (7.14%) Virtual Private Cloud
6 4 (5.71%) AWS CloudFormation
6 4 (5.71%) AWS Lambda
6 4 (5.71%) Serverless
7 3 (4.29%) Akamai
7 3 (4.29%) Amazon CloudWatch
7 3 (4.29%) Fastly
7 3 (4.29%) SaaS
8 2 (2.86%) Amazon S3
8 2 (2.86%) GitHub
9 1 (1.43%) Amazon ELB
9 1 (1.43%) Google App Engine
Communications & Networking
1 20 (28.57%) Firewall
2 14 (20.00%) TCP/IP
3 11 (15.71%) VLAN
4 4 (5.71%) Internet
5 3 (4.29%) DNS
5 3 (4.29%) HTTP
5 3 (4.29%) HTTPS
5 3 (4.29%) SSL
5 3 (4.29%) VPN
6 1 (1.43%) LAN
6 1 (1.43%) OpenVPN
6 1 (1.43%) SSH
6 1 (1.43%) tcpdump
Database & Business Intelligence
1 43 (61.43%) MySQL
2 32 (45.71%) Redis
3 21 (30.00%) MongoDB
4 18 (25.71%) Apache Cassandra
4 18 (25.71%) PostgreSQL
5 17 (24.29%) Hadoop
5 17 (24.29%) MariaDB
6 9 (12.86%) Big Data
7 6 (8.57%) InterSystems Cache
7 6 (8.57%) NoSQL
8 1 (1.43%) Amazon RDS
8 1 (1.43%) SQL Server
Development Applications
1 45 (64.29%) Git (software)
2 42 (60.00%) Jenkins
3 19 (27.14%) Atlassian Bamboo
4 4 (5.71%) JIRA
5 3 (4.29%) CircleCI
6 1 (1.43%) Sonatype Nexus
General
1 8 (11.43%) Legal
2 3 (4.29%) Publishing
Job Titles
1 30 (42.86%) DevOps Engineer
2 19 (27.14%) Developer
3 8 (11.43%) Linux Engineer
4 7 (10.00%) Perl Developer
4 7 (10.00%) Senior Developer
4 7 (10.00%) Senior Perl Developer
5 6 (8.57%) AWS Engineer
5 6 (8.57%) Drupal Developer
5 6 (8.57%) Linux DevOps Engineer
5 6 (8.57%) Linux/Unix DevOps
6 5 (7.14%) Architect
6 5 (7.14%) AWS DevOps
6 5 (7.14%) AWS DevOps Engineer
6 5 (7.14%) Consultant
6 5 (7.14%) DevOps Consultant
6 5 (7.14%) Infrastructure Architect
6 5 (7.14%) PHP Developer
6 5 (7.14%) PHP Drupal Developer
7 3 (4.29%) Systems Administrator
7 3 (4.29%) Systems Engineer
Libraries, Frameworks & Software Standards
1 33 (47.14%) LEMP Stack
2 27 (38.57%) LAMP
3 17 (24.29%) LAPP Stack
4 15 (21.43%) Elastic Stack
5 14 (20.00%) Node.js
6 12 (17.14%) Memcached
7 11 (15.71%) CSS
7 11 (15.71%) HTML
8 10 (14.29%) Sensu
9 9 (12.86%) Regular Expression
10 8 (11.43%) FastCGI
10 8 (11.43%) Symfony
11 7 (10.00%) DBIx::Class
11 7 (10.00%) Gearman
11 7 (10.00%) jQuery
11 7 (10.00%) Lucene
11 7 (10.00%) Moose
11 7 (10.00%) Plack
12 5 (7.14%) Drush
12 5 (7.14%) Sass
Miscellaneous
1 17 (24.29%) Private Cloud
2 11 (15.71%) User Experience
3 9 (12.86%) Algorithms
4 7 (10.00%) Data Centre
5 3 (4.29%) Enterprise Software
6 2 (2.86%) Computer Science
6 2 (2.86%) Data Structures
6 2 (2.86%) Greenfield Project
7 1 (1.43%) Analytical Skills
7 1 (1.43%) Foreign Exchange (FX)
7 1 (1.43%) Internet of Things
7 1 (1.43%) Linux Command Line
7 1 (1.43%) Video\Live Streaming
Operating Systems
1 55 (78.57%) Linux
2 27 (38.57%) Unix
3 18 (25.71%) Windows
4 7 (10.00%) CentOS
5 3 (4.29%) Ubuntu
6 1 (1.43%) Debian
6 1 (1.43%) Red Hat Enterprise Linux
6 1 (1.43%) Windows Server
6 1 (1.43%) Windows Server 2008
6 1 (1.43%) Windows Server 2012
Processes & Methodologies
1 54 (77.14%) DevOps
2 29 (41.43%) Agile Software Development
3 21 (30.00%) E-Commerce
4 19 (27.14%) Configuration Management
4 19 (27.14%) Open Source
5 15 (21.43%) Continuous Integration
6 9 (12.86%) Collaborative Working
6 9 (12.86%) Test Automation
7 8 (11.43%) Business Intelligence
7 8 (11.43%) Machine Learning
8 7 (10.00%) Functional Testing
8 7 (10.00%) Mentoring
8 7 (10.00%) Neural Network
8 7 (10.00%) OO
8 7 (10.00%) SEO
8 7 (10.00%) Statistics
8 7 (10.00%) Vertical Search
9 6 (8.57%) High Availability
9 6 (8.57%) Load Testing
9 6 (8.57%) TDD
Programming Languages
1 56 (80.00%) Python
2 42 (60.00%) Ruby
3 31 (44.29%) Bash Shell
4 18 (25.71%) PHP
5 13 (18.57%) SQL
6 12 (17.14%) Perl
7 8 (11.43%) Java
7 8 (11.43%) JavaScript
8 7 (10.00%) Go
9 2 (2.86%) C++
10 1 (1.43%) C
Qualifications
1 2 (2.86%) Computer Science Degree
1 2 (2.86%) Degree
Quality Assurance & Compliance
1 14 (20.00%) GCP
2 5 (7.14%) QA
3 2 (2.86%) SLA
System Software
1 41 (58.57%) Docker
2 3 (4.29%) Squid
Systems Management
1 38 (54.29%) Opscode Chef
2 35 (50.00%) HAProxy
2 35 (50.00%) Puppet
3 24 (34.29%) Ansible
4 18 (25.71%) Kubernetes
5 17 (24.29%) Terraform
6 13 (18.57%) Graphite
7 11 (15.71%) logstash
7 11 (15.71%) ZABBIX
8 10 (14.29%) Graylog
9 3 (4.29%) Grafana
10 1 (1.43%) Consul
10 1 (1.43%) Kibana
10 1 (1.43%) Mesos
10 1 (1.43%) Nmap
Vendors
1 17 (24.29%) SaltStack
2 10 (14.29%) New Relic
3 8 (11.43%) Google
4 6 (8.57%) Rackspace
4 6 (8.57%) Red Hat