Period
to 16 September 2021

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 16 September 2021 with a comparison to the same period in the previous 2 years.

Varnish
England > London
6 months to
16 Sep 2021
Same period 2020 Same period 2019
Rank 699 489 682
Rank change year-on-year -210 +193 +124
Permanent jobs citing Varnish 26 2 52
As % of all permanent jobs advertised in London 0.053% 0.009% 0.093%
As % of the System Software category 0.28% 0.049% 0.53%
Number of salaries quoted 21 2 38
10th Percentile £60,000 £43,500 £41,250
25th Percentile £66,250 £45,000 £43,563
Median annual salary (50th Percentile) £70,000 £50,000 £62,625
Median % change year-on-year +40.00% -20.16% +7.97%
75th Percentile £87,500 £55,000 £68,750
90th Percentile " £56,500 £74,150
England median annual salary £70,000 £75,000 £60,250
% change year-on-year -6.67% +24.48% +3.88%

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 9,422 4,114 9,904
As % of all permanent IT jobs advertised in London 19.30% 19.34% 17.77%
Number of salaries quoted 5,891 3,588 8,269
10th Percentile £37,500 £40,000 £29,750
25th Percentile £52,500 £51,250 £42,500
Median annual salary (50th Percentile) £70,000 £70,000 £65,000
Median % change year-on-year - +7.69% +8.33%
75th Percentile £90,000 £85,000 £82,750
90th Percentile £107,500 £100,000 £97,500
England median annual salary £57,500 £55,000 £50,000
% change year-on-year +4.55% +10.00% -

Varnish
Job Vacancy Trend in London

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

Job vacancy trend for Varnish in London

Varnish
Salary Trend in London

3-month moving average salary quoted in jobs citing Varnish in London.

Salary trend for Varnish in London

Varnish
Salary Histogram in London

Salary distribution for jobs citing Varnish in London over the 6 months to 16 September 2021.

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 16 September 2021. 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
South London - 6 £70,000 - 1
Central London - 1 £57,500 - 5
Varnish
England

For the 6 months to 16 September 2021, IT jobs citing Varnish also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the London region with a requirement for Varnish.

1 20 (76.92%) Docker
2 19 (73.08%) GCP
3 18 (69.23%) DevOps
3 18 (69.23%) Python
4 17 (65.38%) Jenkins
4 17 (65.38%) Redis
5 16 (61.54%) nginx
6 15 (57.69%) AWS
7 14 (53.85%) Terraform
8 13 (50.00%) Kubernetes
8 13 (50.00%) PostgreSQL
9 11 (42.31%) Google
9 11 (42.31%) TDD
9 11 (42.31%) Continuous Integration
9 11 (42.31%) GitHub
10 10 (38.46%) GitLab
10 10 (38.46%) Apache Solr
10 10 (38.46%) Django
10 10 (38.46%) Migration
10 10 (38.46%) JavaScript
10 10 (38.46%) Vue.js
10 10 (38.46%) Full Stack Development
11 9 (34.62%) MySQL
11 9 (34.62%) HTML
11 9 (34.62%) CSS
11 9 (34.62%) Configuration Management
11 9 (34.62%) WordPress
11 9 (34.62%) Azure
11 9 (34.62%) MongoDB
12 8 (30.77%) Memcached

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 16 (61.54%) nginx
2 10 (38.46%) Apache Solr
3 9 (34.62%) WordPress
4 7 (26.92%) CMS
4 7 (26.92%) Drupal
5 5 (19.23%) Apache
6 2 (7.69%) Adobe Experience Manager
6 2 (7.69%) Elasticsearch
6 2 (7.69%) OpenStack
6 2 (7.69%) Traffic Server
7 1 (3.85%) EPiServer
7 1 (3.85%) Kentico
7 1 (3.85%) Sitecore CMS
7 1 (3.85%) Umbraco
Cloud Services
1 19 (73.08%) GCP
2 15 (57.69%) AWS
3 11 (42.31%) GitHub
4 9 (34.62%) Azure
5 6 (23.08%) Serverless
6 3 (11.54%) Amazon EC2
6 3 (11.54%) Amazon ELB
6 3 (11.54%) AWS CodePipeline
6 3 (11.54%) AWS Lambda
6 3 (11.54%) Route 53
7 2 (7.69%) Akamai
7 2 (7.69%) Amazon CloudWatch
7 2 (7.69%) BlazeMeter
7 2 (7.69%) Cloudflare
7 2 (7.69%) CloudFront
7 2 (7.69%) Datadog
7 2 (7.69%) npm
7 2 (7.69%) Trello
8 1 (3.85%) Slack
8 1 (3.85%) Yarn
Communications & Networking
1 7 (26.92%) HTTP
2 5 (19.23%) Internet
3 4 (15.38%) DNS
3 4 (15.38%) TCP/IP
4 3 (11.54%) Firewall
4 3 (11.54%) FTP
4 3 (11.54%) SMTP
4 3 (11.54%) SSL
5 1 (3.85%) DHCP
Database & Business Intelligence
1 17 (65.38%) Redis
2 13 (50.00%) PostgreSQL
3 9 (34.62%) MongoDB
3 9 (34.62%) MySQL
4 7 (26.92%) NoSQL
5 6 (23.08%) SQL Server
6 3 (11.54%) Amazon RDS
7 1 (3.85%) ClickHouse
7 1 (3.85%) Relational Database
Development Applications
1 17 (65.38%) Jenkins
2 10 (38.46%) GitLab
3 8 (30.77%) Atlassian Bamboo
4 5 (19.23%) Git (software)
5 3 (11.54%) JIRA
6 2 (7.69%) Cypress.io
6 2 (7.69%) JMeter
6 2 (7.69%) JUnit
6 2 (7.69%) Maven
6 2 (7.69%) Pa11y
6 2 (7.69%) webpack
7 1 (3.85%) Artifactory
7 1 (3.85%) CircleCI
7 1 (3.85%) Grunt
7 1 (3.85%) gulp
7 1 (3.85%) Jasmine
7 1 (3.85%) Mocha
7 1 (3.85%) TeamCity
7 1 (3.85%) Vagrant
7 1 (3.85%) Yeoman
General
1 3 (11.54%) Publishing
2 2 (7.69%) Finance
2 2 (7.69%) Social Skills
Job Titles
1 10 (38.46%) Developer
1 10 (38.46%) DevOps Engineer
1 10 (38.46%) Senior DevOps
1 10 (38.46%) Senior DevOps Engineer
2 9 (34.62%) Full Stack Developer
3 1 (3.85%) Backend Developer
3 1 (3.85%) Drupal Developer
3 1 (3.85%) Lead Developer
3 1 (3.85%) Linux Engineer
3 1 (3.85%) Linux Systems Engineer
3 1 (3.85%) Platform Engineer
3 1 (3.85%) Reliability Engineer
3 1 (3.85%) Senior Developer
3 1 (3.85%) Senior Full Stack Developer
3 1 (3.85%) Systems Engineer
3 1 (3.85%) WebOps Engineer
Libraries, Frameworks & Software Standards
1 10 (38.46%) Django
1 10 (38.46%) Vue.js
2 9 (34.62%) CSS
2 9 (34.62%) HTML
3 8 (30.77%) Memcached
3 8 (30.77%) Node.js
4 7 (26.92%) RabbitMQ
4 7 (26.92%) React
5 6 (23.08%) WebSockets
6 3 (11.54%) LAMP
6 3 (11.54%) Lucene
6 3 (11.54%) RESTful
7 2 (7.69%) Celery
7 2 (7.69%) Jest
7 2 (7.69%) LESS
7 2 (7.69%) OSGi
7 2 (7.69%) Sass
7 2 (7.69%) Swagger
8 1 (3.85%) GatsbyJS
8 1 (3.85%) Next.js
Miscellaneous
1 8 (30.77%) Blog
2 4 (15.38%) Private Cloud
3 3 (11.54%) User Experience
Operating Systems
1 6 (23.08%) Linux
2 2 (7.69%) CentOS
2 2 (7.69%) Red Hat Enterprise Linux
3 1 (3.85%) Unix
Processes & Methodologies
1 18 (69.23%) DevOps
2 11 (42.31%) Continuous Integration
2 11 (42.31%) TDD
3 10 (38.46%) Full Stack Development
3 10 (38.46%) Migration
4 9 (34.62%) Configuration Management
5 8 (30.77%) Infrastructure Automation
6 6 (23.08%) Multithreading
6 6 (23.08%) OWASP
7 4 (15.38%) Agile Software Development
7 4 (15.38%) Performance Tuning
7 4 (15.38%) Workflow
8 3 (11.54%) Content Management
8 3 (11.54%) Open Source
8 3 (11.54%) Test Automation
8 3 (11.54%) Web Operations
9 2 (7.69%) Load Testing
9 2 (7.69%) Progressive Enhancement
9 2 (7.69%) Test Strategy
9 2 (7.69%) Unit Testing
Programming Languages
1 18 (69.23%) Python
2 10 (38.46%) JavaScript
3 8 (30.77%) Java
4 7 (26.92%) PHP
5 6 (23.08%) SQL
6 2 (7.69%) ES6
6 2 (7.69%) TypeScript
7 1 (3.85%) Groovy
7 1 (3.85%) Shell Script
Quality Assurance & Compliance
1 2 (7.69%) Accessibility
System Software
1 20 (76.92%) Docker
2 2 (7.69%) LXC
2 2 (7.69%) Squid
2 2 (7.69%) VMware Infrastructure
2 2 (7.69%) Xen
3 1 (3.85%) iptables
3 1 (3.85%) Virtual Machines
Systems Management
1 14 (53.85%) Terraform
2 13 (50.00%) Kubernetes
3 3 (11.54%) Ansible
4 2 (7.69%) HAProxy
5 1 (3.85%) Docker Swarm
5 1 (3.85%) Grafana
5 1 (3.85%) Nagios
5 1 (3.85%) Opscode Chef
5 1 (3.85%) Prometheus
5 1 (3.85%) Salt
Vendors
1 11 (42.31%) Google
2 6 (23.08%) Oracle
3 2 (7.69%) Adobe
3 2 (7.69%) New Relic
3 2 (7.69%) VMware
4 1 (3.85%) Sitecore