The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Debian skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Debian over the 3 months to 29 March 2017 with a comparison to the same period in the previous 2 years.

Debian Linux
London / City of London
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 208 252 270
Rank change year-on-year +44 +18  
Permanent jobs citing Debian 15 16 49
As % of all permanent IT jobs advertised in the City of London 0.29% 0.22% 0.47%
As % of the Operating Systems category 1.14% 0.93% 1.77%
Number of salaries quoted 15 15 35
Median salary £42,535 £52,500 £47,500
Median salary % change year-on-year -18.98% +10.52%  
90% offered a salary of more than £38,250 £38,500 £39,500
10% offered a salary of more than £65,000 £95,000 £60,000
UK excluding London median salary £41,500 £37,500 £42,500
% change year-on-year +10.66% -11.76%  

Debian is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for operating system skills.

Operating System Skills
City of London
Permanent job vacancies with a requirement for operating system skills 1319 1719 2764
As % of all permanent IT job vacancies advertised in the City of London 25.64% 23.94% 26.61%
Number of salaries quoted 1204 1535 2401
Median salary £52,500 £52,500 £48,500
Median salary % change year-on-year - +8.24%  
90% offered a salary of more than £28,500 £30,000 £30,000
10% offered a salary of more than £80,000 £70,000 £80,000
UK excluding London median salary £37,500 £37,500 £37,500

Debian
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Debian as a proportion of all permanent or contract IT jobs with a match in the Operating Systems category.

Job vacancy trend for Debian in the City of London

Debian
Salary Trend in the City of London

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

Salary trend for Debian in the City of London

Debian
Salary Histogram in the City of London

The salary distribution of IT jobs citing Debian in the City of London over the 3 months to 29 March 2017.

Salary histogram for Debian in the City of London

For the 6 months to 29 March 2017, IT jobs citing Debian 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 City of London region with a requirement for Debian.

1 31 (100.00%) Linux
2 30 (96.77%) Ubuntu
3 19 (61.29%) MySQL
4 17 (54.84%) VMware
5 16 (51.61%) Red Hat
6 14 (45.16%) Windows
6 14 (45.16%) VMware Infrastructure
6 14 (45.16%) Red Hat Enterprise Linux
6 14 (45.16%) DevOps
7 13 (41.94%) Oracle
8 12 (38.71%) Apache
8 12 (38.71%) Python
9 11 (35.48%) SQL
9 11 (35.48%) Unix
9 11 (35.48%) Git (software)
9 11 (35.48%) Amazon AWS
9 11 (35.48%) Bash Shell
9 11 (35.48%) Puppet
9 11 (35.48%) Continuous Improvement
10 10 (32.26%) Change Control
10 10 (32.26%) G Suite
10 10 (32.26%) NetScaler
10 10 (32.26%) Jenkins
10 10 (32.26%) vSphere
10 10 (32.26%) XenApp
10 10 (32.26%) Alfresco
10 10 (32.26%) Microsoft Virtual Server
10 10 (32.26%) Oracle Database 11g
10 10 (32.26%) Strategic Planning
10 10 (32.26%) Google

Debian
Co-occurring IT Skills in the City of 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 12 (38.71%) Apache
2 10 (32.26%) Alfresco
2 10 (32.26%) IIS
2 10 (32.26%) Tomcat
3 4 (12.90%) OpenStack
4 3 (9.68%) Elasticsearch
4 3 (9.68%) nginx
5 1 (3.23%) Foswiki
5 1 (3.23%) WordPress
Cloud Services
1 11 (35.48%) Amazon AWS
2 10 (32.26%) G Suite
3 3 (9.68%) Amazon ElastiCache
3 3 (9.68%) Bluemix
3 3 (9.68%) Datadog
3 3 (9.68%) Heroku
3 3 (9.68%) IBM Cloud
3 3 (9.68%) Microsoft Azure
4 1 (3.23%) Amazon EC2
Communications & Networking
1 10 (32.26%) NetScaler
2 5 (16.13%) Firewall
3 4 (12.90%) Cisco ISE
3 4 (12.90%) VPN
4 2 (6.45%) Internet
5 1 (3.23%) Cisco ASA
5 1 (3.23%) DNS
5 1 (3.23%) LAN
5 1 (3.23%) Network Security
5 1 (3.23%) WAN
Database & Business Intelligence
1 19 (61.29%) MySQL
2 10 (32.26%) Oracle Database
2 10 (32.26%) Oracle Database 11g
2 10 (32.26%) SQL Server
3 4 (12.90%) Redis
4 3 (9.68%) Amazon DynamoDB
5 1 (3.23%) Big Data
Development Applications
1 11 (35.48%) Git (software)
2 10 (32.26%) Jenkins
3 5 (16.13%) JIRA
4 3 (9.68%) GoCD
4 3 (9.68%) Travis CI
5 1 (3.23%) Phabricator
General
1 1 (3.23%) Finance
1 1 (3.23%) Financial Institution
Job Titles
1 10 (32.26%) DevOps Engineer
1 10 (32.26%) Unix Specialist
2 5 (16.13%) Developer
3 4 (12.90%) Analyst
3 4 (12.90%) Django Developer
3 4 (12.90%) Firewall Analyst
3 4 (12.90%) Python Developer
3 4 (12.90%) Python/Django Developer
3 4 (12.90%) Security Analyst
3 4 (12.90%) Senior DevOps
3 4 (12.90%) Senior DevOps Engineer
3 4 (12.90%) SOC Analyst
4 3 (9.68%) Virtualisation Specialist
5 2 (6.45%) IT Analyst
5 2 (6.45%) IT Security Analyst
6 1 (3.23%) AWS DevOps
6 1 (3.23%) E-Commerce Administrator
6 1 (3.23%) Lead DevOps Engineer
6 1 (3.23%) Linux/Unix DevOps
6 1 (3.23%) SIEM Analyst
Libraries, Frameworks & Software Standards
1 7 (22.58%) LAMP
1 7 (22.58%) RabbitMQ
2 4 (12.90%) ActiveMQ
2 4 (12.90%) Django
2 4 (12.90%) Kafka
3 3 (9.68%) Node.js
3 3 (9.68%) Sphinx
3 3 (9.68%) WebSockets
4 2 (6.45%) Elastic Stack
5 1 (3.23%) Ajax
5 1 (3.23%) CSS
5 1 (3.23%) Ext JS
5 1 (3.23%) HTML
5 1 (3.23%) Laravel
5 1 (3.23%) Web Services
Miscellaneous
1 10 (32.26%) EMC VNX
2 7 (22.58%) Linux Command Line
3 4 (12.90%) Data Centre
3 4 (12.90%) PKI
3 4 (12.90%) User Experience
4 3 (9.68%) Fintech
5 2 (6.45%) Hedge funds
5 2 (6.45%) Xbox
6 1 (3.23%) Data Structures
6 1 (3.23%) Driving Licence
6 1 (3.23%) Enterprise Software
6 1 (3.23%) Management Information System
6 1 (3.23%) Replication
Operating Systems
1 31 (100.00%) Linux
2 30 (96.77%) Ubuntu
3 14 (45.16%) Red Hat Enterprise Linux
3 14 (45.16%) Windows
4 11 (35.48%) Unix
5 10 (32.26%) Mac OS X
5 10 (32.26%) NetWare
5 10 (32.26%) SUSE
6 7 (22.58%) CentOS
7 2 (6.45%) Fedora
7 2 (6.45%) Kali Linux
8 1 (3.23%) Solaris
Processes & Methodologies
1 14 (45.16%) DevOps
2 11 (35.48%) Continuous Improvement
3 10 (32.26%) Business Continuity
3 10 (32.26%) Change Control
3 10 (32.26%) Document Management
3 10 (32.26%) ITIL
3 10 (32.26%) PRINCE2
3 10 (32.26%) Project Management
3 10 (32.26%) Quality Management
3 10 (32.26%) Strategic Planning
3 10 (32.26%) Virtual Infrastructure
4 9 (29.03%) Agile Software Development
5 7 (22.58%) Configuration Management
6 5 (16.13%) SIEM
6 5 (16.13%) Vulnerability Management
7 4 (12.90%) Continuous Deployment
7 4 (12.90%) Cybersecurity
7 4 (12.90%) Multi-Factor Authentication
7 4 (12.90%) Open Source
7 4 (12.90%) Two-Factor Authentication
Programming Languages
1 12 (38.71%) Python
2 11 (35.48%) Bash Shell
2 11 (35.48%) SQL
3 5 (16.13%) Perl
4 4 (12.90%) Java
5 3 (9.68%) PowerShell
5 3 (9.68%) Shell Script
6 2 (6.45%) PHP
7 1 (3.23%) C
7 1 (3.23%) C++
7 1 (3.23%) JavaScript
Qualifications
1 4 (12.90%) CCDP
1 4 (12.90%) CCNP
1 4 (12.90%) CCSP
1 4 (12.90%) CESG Certified Professional
1 4 (12.90%) Cisco Certification
2 1 (3.23%) Degree
2 1 (3.23%) Security Cleared
Quality Assurance & Compliance
1 5 (16.13%) ISO/IEC 27001
1 5 (16.13%) PCI DSS
System Software
1 14 (45.16%) VMware Infrastructure
2 10 (32.26%) Active Directory
2 10 (32.26%) Microsoft Virtual Server
2 10 (32.26%) Virtual Servers
2 10 (32.26%) vSphere
2 10 (32.26%) XenApp
3 4 (12.90%) KVM
3 4 (12.90%) Snort
3 4 (12.90%) Virtual Machines
3 4 (12.90%) Xen
4 3 (9.68%) Docker
5 1 (3.23%) Shibboleth
Systems Management
1 11 (35.48%) Puppet
2 10 (32.26%) Ansible
2 10 (32.26%) EMC VPLEX
2 10 (32.26%) Nagios
2 10 (32.26%) NetIQ Identity Manager
2 10 (32.26%) Simpana
3 8 (25.81%) Opscode Chef
4 7 (22.58%) Terraform
5 4 (12.90%) OSSEC
5 4 (12.90%) Salt
6 2 (6.45%) HAProxy
Vendors
1 17 (54.84%) VMware
2 16 (51.61%) Red Hat
3 13 (41.94%) Oracle
4 10 (32.26%) Citrix
4 10 (32.26%) CommVault
4 10 (32.26%) EMC
4 10 (32.26%) Google
4 10 (32.26%) Novell
5 5 (16.13%) Cisco
5 5 (16.13%) Juniper
6 4 (12.90%) Intel Security
6 4 (12.90%) LogRhythm
6 4 (12.90%) Microsoft
6 4 (12.90%) Sourcefire
7 3 (9.68%) New Relic
7 3 (9.68%) SaltStack
8 1 (3.23%) Sencha
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