The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Linux skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Linux over the 3 months to 25 June 2017 with a comparison to the same period in the previous 2 years.

Linux
London / City of London
3 months to
25 Jun 2017
Same period 2016 Same period 2015
Rank 12 12 16
Rank change year-on-year 0 +4  
Permanent jobs citing Linux 676 781 1126
As % of all permanent IT jobs advertised in the City of London 13.13% 12.41% 10.88%
As % of the Operating Systems category 50.00% 46.19% 45.62%
Number of salaries quoted 608 703 993
Median salary £60,000 £60,000 £57,500
Median salary % change year-on-year - +4.34%  
90% offered a salary of more than £35,000 £38,200 £37,500
10% offered a salary of more than £90,000 £85,000 £79,500
UK excluding London median salary £42,500 £42,500 £42,500

Linux 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 1352 1691 2468
As % of all permanent IT job vacancies advertised in the City of London 26.27% 26.87% 23.85%
Number of salaries quoted 1189 1536 2161
Median salary £52,500 £52,500 £50,000
Median salary % change year-on-year - +5.00%  
90% offered a salary of more than £29,325 £30,000 £30,000
10% offered a salary of more than £85,000 £72,500 £80,000
UK excluding London median salary £37,500 £37,500 £37,500

Linux
Job Vacancy Trend in the City of London

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

Job vacancy trend for Linux in the City of London

Linux
Salary Trend in the City of London

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

Salary trend for Linux in the City of London

Linux
Salary Histogram in the City of London

The salary distribution of IT jobs citing Linux in the City of London over the 3 months to 25 June 2017.

Salary histogram for Linux in the City of London

For the 6 months to 25 June 2017, 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 City of London region with a requirement for Linux.

1 520 (39.97%) Finance
2 494 (37.97%) Windows
3 439 (33.74%) Python
4 373 (28.67%) SQL
5 372 (28.59%) Unix
6 358 (27.52%) Java
7 267 (20.52%) DevOps
8 228 (17.52%) Puppet
9 226 (17.37%) Agile Software Development
10 201 (15.45%) Red Hat
11 198 (15.22%) Banking
11 198 (15.22%) Amazon AWS
12 181 (13.91%) Oracle
13 179 (13.76%) Red Hat Enterprise Linux
14 178 (13.68%) Degree
15 174 (13.37%) Bash Shell
16 173 (13.30%) C++
17 172 (13.22%) JavaScript
18 169 (12.99%) Jenkins
19 168 (12.91%) Ansible
20 167 (12.84%) MySQL
21 153 (11.76%) Docker
21 153 (11.76%) VMware
22 151 (11.61%) Perl
23 149 (11.45%) Fintech
24 138 (10.61%) Firewall
25 136 (10.45%) Microsoft
26 135 (10.38%) HTML
27 129 (9.92%) SQL Server
28 127 (9.76%) PHP

Linux
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
1 113 (8.69%) Apache
2 73 (5.61%) Tomcat
3 41 (3.15%) IIS
4 35 (2.69%) Elasticsearch
5 34 (2.61%) JBoss
6 31 (2.38%) WebLogic
7 26 (2.00%) Apache Spark
8 24 (1.84%) nginx
9 23 (1.77%) OpenStack
10 20 (1.54%) WebSphere
11 18 (1.38%) CMS
12 17 (1.31%) Confluence
12 17 (1.31%) MS Exchange
13 14 (1.08%) WordPress
14 10 (0.77%) Exchange Server 2010
14 10 (0.77%) SharePoint
15 9 (0.69%) Drupal
16 8 (0.61%) Apache Pig
17 7 (0.54%) Apache Solr
18 6 (0.46%) BizTalk Server
Applications
1 14 (1.08%) Microsoft Office
2 6 (0.46%) Microsoft Excel
3 4 (0.31%) Microsoft PowerPoint
4 1 (0.077%) MS Visio
Business Applications
1 7 (0.54%) Magento
2 4 (0.31%) SAP BPC
3 2 (0.15%) Eze OMS
3 2 (0.15%) Markit EDM
3 2 (0.15%) Sage X3
3 2 (0.15%) thinkFolio
4 1 (0.077%) LatentZero
4 1 (0.077%) OpenLink RightAngle
4 1 (0.077%) Oracle Applications
4 1 (0.077%) SAP Oil and Gas
4 1 (0.077%) SAP SRM
4 1 (0.077%) Sentinel
Cloud Services
1 198 (15.22%) Amazon AWS
2 68 (5.23%) Microsoft Azure
3 32 (2.46%) SaaS
4 25 (1.92%) Amazon S3
5 23 (1.77%) AWS CloudFormation
6 20 (1.54%) Office 365
7 18 (1.38%) Amazon EC2
7 18 (1.38%) Cloud Computing
8 17 (1.31%) Amazon ELB
8 17 (1.31%) GitHub
9 14 (1.08%) Google Cloud Platform
10 10 (0.77%) Amazon SQS
10 10 (0.77%) AWS Lambda
10 10 (0.77%) IaaS
10 10 (0.77%) PaaS
10 10 (0.77%) Route 53
11 9 (0.69%) DigitalOcean
11 9 (0.69%) G Suite
11 9 (0.69%) Virtual Private Cloud
12 8 (0.61%) Heroku
Communications & Networking
1 138 (10.61%) Firewall
2 85 (6.53%) TCP/IP
3 66 (5.07%) DNS
4 65 (5.00%) SAN
5 51 (3.92%) DHCP
6 50 (3.84%) Network Security
7 41 (3.15%) VPN
7 41 (3.15%) WAN
8 40 (3.07%) Cisco ASA
8 40 (3.07%) LAN
9 39 (3.00%) Internet
10 33 (2.54%) HTTP
11 32 (2.46%) LDAP
12 31 (2.38%) NAS
13 29 (2.23%) Wireless
14 22 (1.69%) BGP
15 21 (1.61%) Intrusion Detection
15 21 (1.61%) VLAN
16 19 (1.46%) OSPF
17 17 (1.31%) VoIP
Database & Business Intelligence
1 167 (12.84%) MySQL
2 129 (9.92%) SQL Server
3 75 (5.76%) Relational Database
4 59 (4.53%) PostgreSQL
5 55 (4.23%) NoSQL
6 49 (3.77%) Oracle Database
7 46 (3.54%) Hadoop
8 44 (3.38%) KDB
9 42 (3.23%) Big Data
10 37 (2.84%) Apache Cassandra
11 35 (2.69%) MongoDB
12 31 (2.38%) Kdb+
12 31 (2.38%) RDBMS
12 31 (2.38%) Redis
13 30 (2.31%) SQL Server 2008
14 21 (1.61%) Data Warehouse
15 20 (1.54%) Oracle Database 11g
16 17 (1.31%) SQL Server Reporting Services
17 15 (1.15%) Amazon RDS
17 15 (1.15%) Apache Hive
Development Applications
1 169 (12.99%) Jenkins
2 115 (8.84%) Git (software)
3 99 (7.61%) JIRA
4 68 (5.23%) Subversion
5 53 (4.07%) Maven
6 39 (3.00%) JUnit
7 34 (2.61%) Atlassian Bamboo
8 28 (2.15%) Selenium
9 22 (1.69%) Gradle
10 21 (1.61%) TeamCity
11 20 (1.54%) SilkPerformer
11 20 (1.54%) SilkTest
12 18 (1.38%) Cucumber
13 17 (1.31%) Eclipse
13 17 (1.31%) Vagrant
14 12 (0.92%) Gatling
15 10 (0.77%) Hamcrest
15 10 (0.77%) jMock
15 10 (0.77%) webpack
16 8 (0.61%) Bitbucket
General
1 520 (39.97%) Finance
2 198 (15.22%) Banking
3 121 (9.30%) Front Office
4 44 (3.38%) Investment Banking
5 38 (2.92%) Advertising
6 33 (2.54%) Back Office
7 32 (2.46%) Legal
8 27 (2.08%) Telecoms
9 21 (1.61%) Games
10 16 (1.23%) Financial Institution
10 16 (1.23%) Marketing
11 14 (1.08%) Retail
12 12 (0.92%) French Language
13 5 (0.38%) Electronics
14 4 (0.31%) Billing
14 4 (0.31%) Law
14 4 (0.31%) Manufacturing
14 4 (0.31%) Multimedia
14 4 (0.31%) Publishing
15 3 (0.23%) Pharmaceutical
Job Titles
1 343 (26.36%) Developer
2 156 (11.99%) DevOps Engineer
3 141 (10.84%) Analyst
4 99 (7.61%) Administrator
5 92 (7.07%) Linux Engineer
6 90 (6.92%) Support Engineer
7 85 (6.53%) Java Developer
8 64 (4.92%) Applications Support
9 62 (4.77%) Support Analyst
10 55 (4.23%) C++ Developer
11 52 (4.00%) Senior Developer
12 50 (3.84%) Systems Administrator
13 45 (3.46%) Linux Administrator
14 44 (3.38%) Infrastructure Engineer
14 44 (3.38%) Systems Engineer
15 39 (3.00%) Graduate
15 39 (3.00%) Network Engineer
16 35 (2.69%) Front Office Developer
16 35 (2.69%) Junior
16 35 (2.69%) Linux/Unix DevOps
Libraries, Frameworks & Software Standards
1 135 (10.38%) HTML
2 97 (7.46%) CSS
3 87 (6.69%) Web Services
4 71 (5.46%) Spring
5 62 (4.77%) FIX Protocol
6 61 (4.69%) .NET
7 59 (4.53%) LAMP
8 58 (4.46%) Node.js
9 57 (4.38%) jQuery
10 55 (4.23%) XML
11 47 (3.61%) Hibernate
12 41 (3.15%) React
13 37 (2.84%) AngularJS
13 37 (2.84%) HTML5
13 37 (2.84%) REST
14 32 (2.46%) Twitter Bootstrap
15 27 (2.08%) SOAP
16 26 (2.00%) J2EE
17 25 (1.92%) JMS
17 25 (1.92%) RESTful
Miscellaneous
1 149 (11.45%) Fintech
2 106 (8.15%) Computer Science
3 78 (6.00%) Analytical Skills
4 61 (4.69%) Data Centre
5 59 (4.53%) Equities
6 53 (4.07%) Derivative
6 53 (4.07%) Linux Command Line
7 40 (3.07%) Algorithms
7 40 (3.07%) User Experience
8 38 (2.92%) Fixed Income
9 35 (2.69%) Clustering
10 34 (2.61%) Hedge funds
11 33 (2.54%) Foreign Exchange (FX)
11 33 (2.54%) Greenfield Project
12 32 (2.46%) Management Information System
13 29 (2.23%) Replication
14 24 (1.84%) PKI
15 19 (1.46%) Data Structures
16 15 (1.15%) Security Operations Centre
17 14 (1.08%) Mobile App
Operating Systems
1 494 (37.97%) Windows
2 372 (28.59%) Unix
3 179 (13.76%) Red Hat Enterprise Linux
4 119 (9.15%) Windows Server
5 114 (8.76%) CentOS
6 98 (7.53%) Ubuntu
7 76 (5.84%) Solaris
8 43 (3.31%) Debian
9 42 (3.23%) Windows Server 2008
10 32 (2.46%) Windows Server 2012
11 16 (1.23%) Kali Linux
12 15 (1.15%) Android
13 12 (0.92%) Mac OS X
14 11 (0.85%) Apple iOS
14 11 (0.85%) Windows 7
15 10 (0.77%) AIX
16 9 (0.69%) Windows 8
17 8 (0.61%) SUSE
17 8 (0.61%) VMS
18 7 (0.54%) Mac OS
Processes & Methodologies
1 267 (20.52%) DevOps
2 226 (17.37%) Agile Software Development
3 119 (9.15%) Continuous Integration
4 114 (8.76%) Configuration Management
5 110 (8.46%) Electronic Trading
6 102 (7.84%) Open Source
7 94 (7.23%) ITIL
7 94 (7.23%) Test Automation
8 72 (5.53%) Mathematics
9 69 (5.30%) Microservices
10 65 (5.00%) Low Latency
11 61 (4.69%) SDLC
12 56 (4.30%) Disaster Recovery
12 56 (4.30%) Software Engineering
12 56 (4.30%) TDD
13 55 (4.23%) OO
14 52 (4.00%) Scrum
14 52 (4.00%) SIEM
15 47 (3.61%) Multithreading
16 45 (3.46%) High Availability
Programming Languages
1 439 (33.74%) Python
2 373 (28.67%) SQL
3 358 (27.52%) Java
4 174 (13.37%) Bash Shell
5 173 (13.30%) C++
6 172 (13.22%) JavaScript
7 151 (11.61%) Perl
8 127 (9.76%) PHP
9 111 (8.53%) Ruby
10 108 (8.30%) Shell Script
11 86 (6.61%) PowerShell
12 65 (5.00%) C#
13 55 (4.23%) C
14 32 (2.46%) Go
15 24 (1.84%) Scala
16 17 (1.31%) VB
17 16 (1.23%) T-SQL
18 13 (1.00%) PL/SQL
19 12 (0.92%) Korn
20 10 (0.77%) Erlang
Qualifications
1 178 (13.68%) Degree
2 73 (5.61%) Cisco Certification
3 53 (4.07%) Security Cleared
4 48 (3.69%) CCNP
5 44 (3.38%) Computer Science Degree
6 40 (3.07%) CCNA
7 32 (2.46%) ISEB
8 29 (2.23%) RHCE
9 26 (2.00%) CISSP
9 26 (2.00%) Microsoft Certification
10 24 (1.84%) SANS
11 20 (1.54%) CCSP
12 18 (1.38%) CISM
12 18 (1.38%) MCSE
12 18 (1.38%) SC Cleared
13 17 (1.31%) CCDP
13 17 (1.31%) CEH
13 17 (1.31%) RHCA
14 16 (1.23%) DV Cleared
14 16 (1.23%) GIAC
Quality Assurance & Compliance
1 59 (4.53%) QA
2 36 (2.77%) ISO/IEC 27001
3 34 (2.61%) PCI DSS
4 29 (2.23%) SLA
5 8 (0.61%) MiFID
6 7 (0.54%) NIST 800
7 3 (0.23%) SEPA
8 2 (0.15%) PMO
8 2 (0.15%) Solvency II
9 1 (0.077%) Data Quality
9 1 (0.077%) EMIR
9 1 (0.077%) GCP
System Software
1 153 (11.76%) Docker
2 93 (7.15%) VMware Infrastructure
3 88 (6.76%) Active Directory
4 34 (2.61%) Virtual Machines
4 34 (2.61%) vSphere
5 26 (2.00%) Hyper-V
6 25 (1.92%) NFS
7 20 (1.54%) VMware ESXi
8 16 (1.23%) pfSense
8 16 (1.23%) XenApp
9 15 (1.15%) Snort
10 11 (0.85%) KVM
10 11 (0.85%) Virtual Servers
10 11 (0.85%) XenServer
11 10 (0.77%) Veritas Cluster Server
12 8 (0.61%) HDFS
12 8 (0.61%) iptables
12 8 (0.61%) Microsoft Virtual Server
12 8 (0.61%) Varnish
12 8 (0.61%) Xen
Systems Management
1 228 (17.52%) Puppet
2 168 (12.91%) Ansible
3 123 (9.45%) Opscode Chef
4 63 (4.84%) Terraform
5 51 (3.92%) Kubernetes
6 41 (3.15%) Nagios
7 19 (1.46%) FortiGate
7 19 (1.46%) SCCM
8 16 (1.23%) Nessus
8 16 (1.23%) Salt
9 15 (1.15%) Mesos
10 14 (1.08%) Control-M
10 14 (1.08%) ITRS Geneos
10 14 (1.08%) OSSEC
11 13 (1.00%) Grafana
12 10 (0.77%) McAfee ePO
12 10 (0.77%) Network Intrusion Detection System
13 9 (0.69%) Cacti
13 9 (0.69%) HAProxy
13 9 (0.69%) Munin
Vendors
1 201 (15.45%) Red Hat
2 181 (13.91%) Oracle
3 153 (11.76%) VMware
4 136 (10.45%) Microsoft
5 115 (8.84%) Cisco
6 48 (3.69%) HP
7 46 (3.54%) Juniper
7 46 (3.54%) NetApp
8 44 (3.38%) Citrix
9 41 (3.15%) Atlassian
10 40 (3.07%) CheckPoint
11 38 (2.92%) Sybase
12 36 (2.77%) F5
13 28 (2.15%) McAfee
14 26 (2.00%) Google
14 26 (2.00%) Twitter
15 25 (1.92%) EMC
15 25 (1.92%) Splunk
16 23 (1.77%) Brocade
16 23 (1.77%) Palo Alto
City, London
Harrington Starr
Salary: £60000 - £80000 per annum
Posted: 14 hours ago
City, London
Harrington Starr
Salary: £65000 - £75000 per annum
Posted: 14 hours ago
City, London
Harrington Starr
Salary: £70000 - £90000 per annum
Posted: 14 hours ago
City, London
TEKsystems
Salary: £90000 - £120000 per annum
Posted: 13 hours ago
City, London
Harrington Starr
Salary: £65000 - £75000 per annum
Posted: 14 hours ago
City, London
TEKsystems
Salary: £100000 - £110000 per annum + Excellent Bonuses
Posted: Yesterday
City, London
Harrington Starr
Salary: £45000 - £55000 per annum
Posted: 14 hours ago
City, London
Harrington Starr
Salary: £40000 - £50000 per annum
Posted: 14 hours ago
City, London
Harrington Starr
Salary: £45000 - £55000 per annum
Posted: 14 hours ago
City, London
Talent Point Ltd
Salary: £50000.00 - £70000.00 per annum
Posted: Yesterday
City, London
Harrington Starr
Salary: £55000 - £65000 per annum + Bonus + Benefits + Training
Posted: Yesterday
City, London
TEKsystems
Salary: £65000 - £85000 per annum
Posted: Yesterday
City, London
Talent Point Ltd
Salary: £60000.00 - £90000.00 per annum
Posted: Yesterday
City, London
TEKsystems
Salary: £60000 - £150000 per annum + bonus and pension
Posted: Yesterday
City, London
Freshtechit
Posted: 2 days ago
City, London
TEKsystems
Salary: £90000 - £95000 per annum + Excellent Package
Posted: Yesterday
City, London
ComputAppoint
Salary: £70000 - £85000 per annum
Posted: 2 days ago
City, London
Harrington Starr
Salary: £55000 - £65000 per annum + Bonus + Benefits + Training
Posted: Yesterday
City, London
TEKsystems
Salary: £60000 - £140000 per annum + bonus and pension
Posted: Yesterday
City, London
Harrington Starr
Salary: £60000 - £70000 per annum + Bonus + Benefits
Posted: Yesterday
City, London
TEKsystems
Salary: £90000 - £120000 per annum
Posted: Yesterday
City, London
Client Server
Salary: £70k to £85k + bonus + benefits
Posted: 2 days ago
City, London
Athelstan Search
Salary: From £60,000 to £85,000 per annum + Share Options + Great Benefits
Posted: 3 days ago
City, London
Talent Point Ltd
Salary: £70000.00 - £100000.00 per annum
Posted: Yesterday
City, London
Computer People
Salary: £40000.00 - £45000.00 per annum
Posted: 2 days ago
City, London
Client Server
Salary: £50k to £65k + bonus + benefits
Posted: 2 days ago
City, London
Client Server
Salary: £65k to £75k + bonus + benefits
Posted: 2 days ago
City, London
Senitor Associates
Salary: £40000 - £45000 per annum + Excellent Benefits Package
Posted: 2 days ago
City, London
Talent Point Ltd
Salary: £80000 - £110000 per annum
Posted: Yesterday
City, London
Senitor Associates
Salary: Excellent Benefits Package
Posted: 2 days ago