Period
to 18 January 2018

The following table provides summary statistics for permanent job vacancies advertised in Croydon with a requirement for Linux skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Linux over the 6 months to 18 January 2018 with a comparison to the same period in the previous 2 years.

Linux
South London > Croydon
6 months to
18 Jan 2018
Same period 2017 Same period 2016
Rank 13 8 17
Rank change year-on-year -5 +9 +28
Permanent jobs citing Linux 36 49 51
As % of all permanent IT jobs advertised in Croydon 9.45% 12.47% 10.90%
As % of the Operating Systems category 38.71% 47.57% 30.36%
Number of salaries quoted 27 48 47
Croydon median annual salary £57,500 £43,000 £45,000
Median salary % change year-on-year +33.72% -4.44% +50.00%
10th Percentile £27,000 £27,300 £22,500
90th Percentile £71,000 £59,101 £60,000
South London median annual salary £45,000 £42,500 £50,000
% change year-on-year +5.88% -15.00% +7.53%

Linux is in the Operating Systems category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Croydon with a requirement for operating system skills.

All Operating Systems
Croydon
Permanent vacancies with a requirement for operating system skills 93 103 168
As % of all permanent IT jobs advertised in Croydon 24.41% 26.21% 35.90%
Number of salaries quoted 78 99 159
Croydon median annual salary £37,250 £43,500 £39,500
Median salary % change year-on-year -14.37% +10.13% +36.21%
10th Percentile £23,850 £21,200 £22,500
90th Percentile £71,625 £58,750 £58,750
South London median annual salary £40,000 £42,500 £42,500
% change year-on-year -5.88% - +13.33%

Linux
Job Vacancy Trend in Croydon

Job postings citing Linux as a percentage of all IT jobs advertised in Croydon.

Job vacancy trend for Linux in Croydon

Linux
Salary Trend in Croydon

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

Salary trend for Linux in Croydon

Linux
Salary Histogram in Croydon

The salary distribution of IT jobs citing Linux in Croydon over the 6 months to 18 January 2018.

Salary histogram for Linux in Croydon

For the 6 months to 18 January 2018, IT jobs citing Linux 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 Croydon region with a requirement for Linux.

1 15 (41.67%) Agile Software Development
2 13 (36.11%) Java
3 12 (33.33%) Continuous Integration
4 11 (30.56%) MySQL
4 11 (30.56%) DevOps
5 10 (27.78%) Docker
5 10 (27.78%) JavaScript
5 10 (27.78%) CSS
5 10 (27.78%) HTML
5 10 (27.78%) Windows
6 9 (25.00%) Amazon AWS
6 9 (25.00%) SQL
6 9 (25.00%) PostgreSQL
6 9 (25.00%) Ansible
6 9 (25.00%) Kubernetes
7 8 (22.22%) Unix
7 8 (22.22%) Python
7 8 (22.22%) Hadoop
7 8 (22.22%) Security Cleared
8 7 (19.44%) SC Cleared
8 7 (19.44%) Puppet
9 6 (16.67%) MongoDB
9 6 (16.67%) Bash Shell
9 6 (16.67%) CSS3
9 6 (16.67%) jQuery
9 6 (16.67%) Unit Testing
9 6 (16.67%) Web Development
9 6 (16.67%) UML
9 6 (16.67%) Web Services
9 6 (16.67%) CMS

Linux
Co-occurring IT Skills in Croydon 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 (16.67%) CMS
2 4 (11.11%) Elasticsearch
3 2 (5.56%) Apache
3 2 (5.56%) Confluence
3 2 (5.56%) nginx
3 2 (5.56%) Tomcat
4 1 (2.78%) Apache Solr
4 1 (2.78%) OpenStack
4 1 (2.78%) WebLogic
Cloud Services
1 9 (25.00%) Amazon AWS
2 5 (13.89%) Microsoft Azure
3 2 (5.56%) GitHub
4 1 (2.78%) AWS CloudFormation
Communications & Networking
1 5 (13.89%) Firewall
1 5 (13.89%) SAN
2 3 (8.33%) GSM
2 3 (8.33%) LTE
2 3 (8.33%) UMTS
3 2 (5.56%) Kerberos
4 1 (2.78%) 3GPP
4 1 (2.78%) IPv4
4 1 (2.78%) Network Security
4 1 (2.78%) SSL
Database & Business Intelligence
1 11 (30.56%) MySQL
2 9 (25.00%) PostgreSQL
3 8 (22.22%) Hadoop
4 6 (16.67%) MongoDB
5 5 (13.89%) NoSQL
5 5 (13.89%) OrientDB
6 4 (11.11%) Big Data
7 1 (2.78%) HBase
Development Applications
1 4 (11.11%) Jenkins
2 3 (8.33%) Git (software)
3 2 (5.56%) Artifactory
3 2 (5.56%) GitLab
3 2 (5.56%) JIRA
3 2 (5.56%) Maven
4 1 (2.78%) Codeship
4 1 (2.78%) Gradle
4 1 (2.78%) Travis CI
General
1 3 (8.33%) Telecoms
2 1 (2.78%) Electronics
2 1 (2.78%) Finance
2 1 (2.78%) Manufacturing
2 1 (2.78%) Marketing
Job Titles
1 15 (41.67%) Developer
2 10 (27.78%) JavaScript Developer
3 9 (25.00%) Java Developer
4 6 (16.67%) DevOps Engineer
4 6 (16.67%) Front End Developer (Client-Side Developer)
4 6 (16.67%) Front End Web Developer (Client-Side Developer)
4 6 (16.67%) HTML CSS Developer
4 6 (16.67%) HTML Developer
4 6 (16.67%) Web Developer
5 5 (13.89%) Infrastructure Engineer
6 4 (11.11%) Agile Developer
6 4 (11.11%) Agile Java Developer
6 4 (11.11%) Linux Developer
6 4 (11.11%) Linux Engineer
6 4 (11.11%) SQL Developer
7 3 (8.33%) C Software Engineer
7 3 (8.33%) Cisco Engineer
7 3 (8.33%) Embedded C Engineer
7 3 (8.33%) Embedded C Software Engineer
7 3 (8.33%) Embedded Software Engineer
Libraries, Frameworks & Software Standards
1 10 (27.78%) CSS
1 10 (27.78%) HTML
2 6 (16.67%) AngularJS
2 6 (16.67%) CSS3
2 6 (16.67%) jQuery
2 6 (16.67%) LAMP
2 6 (16.67%) LESS
2 6 (16.67%) React
2 6 (16.67%) Sass
2 6 (16.67%) Web Services
3 5 (13.89%) J2EE
3 5 (13.89%) Java SE
4 4 (11.11%) Hibernate
4 4 (11.11%) Kafka
4 4 (11.11%) Spring
5 2 (5.56%) Elastic Stack
6 1 (2.78%) Lucene
6 1 (2.78%) RESTful
Miscellaneous
1 6 (16.67%) Data Centre
2 5 (13.89%) Analytical Skills
3 1 (2.78%) Computer Science
Operating Systems
1 10 (27.78%) Windows
2 8 (22.22%) Unix
3 5 (13.89%) Windows Server
4 4 (11.11%) CoreOS
5 1 (2.78%) AIX
5 1 (2.78%) Red Hat Enterprise Linux
Processes & Methodologies
1 15 (41.67%) Agile Software Development
2 12 (33.33%) Continuous Integration
3 11 (30.56%) DevOps
4 6 (16.67%) Front End Development
4 6 (16.67%) Responsive Web Design
4 6 (16.67%) UML
4 6 (16.67%) Unit Testing
4 6 (16.67%) Web Development
5 5 (13.89%) Configuration Management
5 5 (13.89%) Translating Business Requirements
6 4 (11.11%) Security Hardening
7 3 (8.33%) Software Engineering
8 2 (5.56%) Business Intelligence
8 2 (5.56%) Open Source
8 2 (5.56%) TDD
9 1 (2.78%) BDD
9 1 (2.78%) Capacity Planning
9 1 (2.78%) Continuous Improvement
9 1 (2.78%) MapReduce
9 1 (2.78%) Security Architecture
Programming Languages
1 13 (36.11%) Java
2 10 (27.78%) JavaScript
3 9 (25.00%) SQL
4 8 (22.22%) Python
5 6 (16.67%) Bash Shell
6 3 (8.33%) C
6 3 (8.33%) Embedded C
7 2 (5.56%) Perl
7 2 (5.56%) Ruby
8 1 (2.78%) C++
8 1 (2.78%) Go
Qualifications
1 8 (22.22%) Security Cleared
2 7 (19.44%) SC Cleared
3 5 (13.89%) CCNA
3 5 (13.89%) CCNP
3 5 (13.89%) Cisco Certification
4 2 (5.56%) Degree
Quality Assurance & Compliance
1 2 (5.56%) MISRA
1 2 (5.56%) MISRA C
2 1 (2.78%) SLA
System Software
1 10 (27.78%) Docker
2 5 (13.89%) Active Directory
2 5 (13.89%) Hyper-V
2 5 (13.89%) vCloud
2 5 (13.89%) XenApp
2 5 (13.89%) XenDesktop
3 2 (5.56%) Apache ZooKeeper
3 2 (5.56%) HDFS
4 1 (2.78%) Virtual Machines
Systems Management
1 9 (25.00%) Ansible
1 9 (25.00%) Kubernetes
2 7 (19.44%) Puppet
3 4 (11.11%) Host Intrusion Detection System
3 4 (11.11%) Network Intrusion Detection System
4 3 (8.33%) Terraform
5 2 (5.56%) HAProxy
5 2 (5.56%) Kibana
5 2 (5.56%) logstash
5 2 (5.56%) Opscode Chef
5 2 (5.56%) Prometheus
6 1 (2.78%) collectd
6 1 (2.78%) Hadoop YARN
6 1 (2.78%) Salt
6 1 (2.78%) ZABBIX
Vendors
1 5 (13.89%) Brocade
1 5 (13.89%) Cisco
1 5 (13.89%) Citrix
1 5 (13.89%) IBM
1 5 (13.89%) Microsoft
1 5 (13.89%) Oracle
1 5 (13.89%) Palo Alto
1 5 (13.89%) VMware
2 4 (11.11%) Hortonworks
3 1 (2.78%) Cloudera
3 1 (2.78%) SAP
3 1 (2.78%) Splunk