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 22 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
22 Mar 2017
Same period 2016 Same period 2015
Linux
London / City of London
Rank 13 17 14
Rank change year-on-year +4 -3  
Permanent jobs citing Linux 610 684 1055
As % of all permanent IT jobs advertised in the City of London 12.17% 9.75% 10.43%
As % of the Operating Systems category 48.11% 40.67% 38.70%
Number of salaries quoted 547 617 903
Median salary £60,000 £60,000 £55,000
Median salary % change year-on-year - +9.09%  
90% offered a salary of more than £37,500 £37,500 £37,500
10% offered a salary of more than £92,500 £82,500 £77,500
UK excluding London median salary £42,500 £42,500 £42,000
% change year-on-year - +1.19%  

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 1268 1682 2726
As % of all permanent IT job vacancies advertised in the City of London 25.29% 23.98% 26.96%
Number of salaries quoted 1154 1499 2364
Median salary £55,000 £52,500 £49,000
Median salary % change year-on-year +4.76% +7.14%  
90% offered a salary of more than £28,000 £30,000 £30,000
10% offered a salary of more than £82,500 £70,000 £77,750
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 22 March 2017.

Salary histogram for Linux in the City of London

Linux
Top 30 Related IT Skills in the City of London

For the 6 months to 22 March 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.

1 489 (38.69%) Finance
2 424 (33.54%) Windows
3 394 (31.17%) Python
4 375 (29.67%) Java
5 372 (29.43%) Unix
6 363 (28.72%) SQL
7 256 (20.25%) DevOps
8 235 (18.59%) Puppet
9 226 (17.88%) Banking
10 197 (15.59%) JavaScript
10 197 (15.59%) Degree
11 196 (15.51%) Agile Software Development
12 187 (14.79%) Jenkins
13 186 (14.72%) Amazon AWS
14 184 (14.56%) Red Hat Enterprise Linux
15 179 (14.16%) Opscode Chef
16 175 (13.84%) Git (software)
17 173 (13.69%) C++
17 173 (13.69%) Oracle
18 171 (13.53%) Bash Shell
19 168 (13.29%) Perl
20 167 (13.21%) Red Hat
21 147 (11.63%) MySQL
21 147 (11.63%) VMware
22 144 (11.39%) Ruby
23 142 (11.23%) Ansible
24 140 (11.08%) HTML
25 129 (10.21%) Configuration Management
26 123 (9.73%) Front Office
27 121 (9.57%) Apache

Linux
Top Related 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
1 121 (9.57%) Apache
2 68 (5.38%) IIS
3 66 (5.22%) Tomcat
4 37 (2.93%) OpenStack
5 35 (2.77%) JBoss
6 31 (2.45%) nginx
7 27 (2.14%) Apache Spark
8 26 (2.06%) Elasticsearch
9 23 (1.82%) WebSphere
10 19 (1.50%) MS Exchange
11 18 (1.42%) Confluence
11 18 (1.42%) WebLogic
12 15 (1.19%) BizTalk Server
13 13 (1.03%) Drupal
14 12 (0.95%) CMS
15 10 (0.79%) Alfresco
15 10 (0.79%) Exchange Server 2010
16 9 (0.71%) WordPress
17 8 (0.63%) Cloud Foundry
17 8 (0.63%) Exchange Server 2013
Applications
1 37 (2.93%) MS Excel
2 17 (1.34%) Photoshop
3 7 (0.55%) MS Office
4 4 (0.32%) GNU Octave
5 3 (0.24%) MS PowerPoint
6 1 (0.079%) MS Visio
Business Applications
1 5 (0.40%) Dynamics CRM
2 4 (0.32%) Sage X3
2 4 (0.32%) Salerio
3 3 (0.24%) CSG Singleview
3 3 (0.24%) Eze OMS
3 3 (0.24%) RMDS
3 3 (0.24%) thinkFolio
4 2 (0.16%) Eikon
4 2 (0.16%) LatentZero
4 2 (0.16%) Magento
4 2 (0.16%) PeopleSoft CRM
4 2 (0.16%) SAP BPC
5 1 (0.079%) Bloomberg TOMS
5 1 (0.079%) Markit EDM
5 1 (0.079%) SAP Oil and Gas
5 1 (0.079%) Sentinel
Cloud Services
1 186 (14.72%) Amazon AWS
2 70 (5.54%) Microsoft Azure
3 26 (2.06%) SaaS
4 24 (1.90%) Office 365
5 17 (1.34%) Google Cloud Platform
6 15 (1.19%) IaaS
6 15 (1.19%) PaaS
7 14 (1.11%) AWS CloudFormation
7 14 (1.11%) GitHub
8 11 (0.87%) Amazon S3
8 11 (0.87%) G Suite
9 9 (0.71%) Amazon EC2
9 9 (0.71%) Amazon ELB
10 6 (0.47%) Route 53
11 5 (0.40%) Heroku
11 5 (0.40%) Virtual Private Cloud
12 4 (0.32%) Amazon CloudWatch
12 4 (0.32%) Cloud Computing
13 3 (0.24%) Bluemix
13 3 (0.24%) Datadog
Communications & Networking
1 114 (9.02%) Firewall
2 61 (4.83%) DNS
3 52 (4.11%) SAN
4 44 (3.48%) DHCP
5 42 (3.32%) TCP/IP
6 37 (2.93%) Internet
7 34 (2.69%) VPN
8 33 (2.61%) Network Security
9 32 (2.53%) WAN
10 28 (2.22%) NAS
11 27 (2.14%) HTTP
12 25 (1.98%) LDAP
13 23 (1.82%) BGP
14 22 (1.74%) Cisco ASA
14 22 (1.74%) LAN
15 21 (1.66%) OSPF
16 19 (1.50%) SSL
17 17 (1.34%) Wireless
18 16 (1.27%) Intrusion Detection
19 14 (1.11%) VoIP
Database & Business Intelligence
1 147 (11.63%) MySQL
2 117 (9.26%) SQL Server
3 73 (5.78%) Relational Database
4 69 (5.46%) NoSQL
5 58 (4.59%) MongoDB
6 51 (4.03%) PostgreSQL
7 49 (3.88%) Oracle Database
8 48 (3.80%) Hadoop
8 48 (3.80%) KDB
9 43 (3.40%) Big Data
10 38 (3.01%) Apache Cassandra
11 35 (2.77%) Kdb+
12 32 (2.53%) Redis
13 26 (2.06%) Oracle Database 11g
14 24 (1.90%) Data Warehouse
15 22 (1.74%) Apache Hive
16 21 (1.66%) RDBMS
17 17 (1.34%) SQL Server Reporting Services
18 16 (1.27%) SQL Server 2008
19 13 (1.03%) HBase
Development Applications
1 187 (14.79%) Jenkins
2 175 (13.84%) Git (software)
3 103 (8.15%) JIRA
4 91 (7.20%) Subversion
5 79 (6.25%) Maven
6 54 (4.27%) JUnit
7 51 (4.03%) Gradle
8 45 (3.56%) Atlassian Bamboo
9 26 (2.06%) git-flow
10 20 (1.58%) Selenium
11 19 (1.50%) TeamCity
12 16 (1.27%) Vagrant
13 15 (1.19%) SilkPerformer
13 15 (1.19%) SilkTest
14 13 (1.03%) Cucumber
14 13 (1.03%) RSpec
15 10 (0.79%) FishEye
15 10 (0.79%) GitLab
16 9 (0.71%) JMeter
17 8 (0.63%) Ant
General
1 489 (38.69%) Finance
2 226 (17.88%) Banking
3 123 (9.73%) Front Office
4 30 (2.37%) Investment Banking
5 25 (1.98%) Advertising
6 23 (1.82%) Games
7 22 (1.74%) Telecoms
8 20 (1.58%) Marketing
8 20 (1.58%) Retail
9 18 (1.42%) Back Office
10 15 (1.19%) Legal
11 14 (1.11%) Financial Institution
12 10 (0.79%) French Language
13 8 (0.63%) Publishing
14 5 (0.40%) Automotive
14 5 (0.40%) Electronics
14 5 (0.40%) Turkish Language
15 4 (0.32%) Manufacturing
16 3 (0.24%) Aerospace
16 3 (0.24%) Law
Job Titles
1 401 (31.72%) Developer
2 151 (11.95%) DevOps Engineer
3 115 (9.10%) Java Developer
4 107 (8.47%) Analyst
5 88 (6.96%) C++ Developer
6 85 (6.72%) Senior Developer
7 80 (6.33%) Administrator
8 76 (6.01%) Linux Engineer
9 64 (5.06%) Applications Support
9 64 (5.06%) Senior Java Developer
10 63 (4.98%) Support Engineer
11 56 (4.43%) Front Office Developer
12 49 (3.88%) Systems Administrator
13 47 (3.72%) Support Analyst
14 46 (3.64%) Architect
14 46 (3.64%) Linux Administrator
15 45 (3.56%) Python Developer
16 41 (3.24%) Java Pricing Developer
17 39 (3.09%) Systems Engineer
18 37 (2.93%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 140 (11.08%) HTML
2 111 (8.78%) CSS
3 110 (8.70%) Node.js
4 80 (6.33%) jQuery
5 77 (6.09%) Spring
6 61 (4.83%) Web Services
7 58 (4.59%) XML
8 57 (4.51%) LAMP
9 54 (4.27%) HTML5
10 53 (4.19%) .NET
11 50 (3.96%) FIX Protocol
12 48 (3.80%) JDBC
13 46 (3.64%) J2SE
14 43 (3.40%) React
15 40 (3.16%) AngularJS
16 39 (3.09%) Twitter Bootstrap
17 35 (2.77%) CSS3
18 34 (2.69%) Middleware
19 33 (2.61%) Ruby on Rails
20 30 (2.37%) RabbitMQ
Miscellaneous
1 118 (9.34%) Computer Science
2 111 (8.78%) Fintech
3 72 (5.70%) Equities
4 65 (5.14%) User Experience
5 63 (4.98%) Hedge funds
6 54 (4.27%) Analytical Skills
7 50 (3.96%) Data Centre
8 49 (3.88%) Derivative
9 48 (3.80%) Algorithms
10 42 (3.32%) Foreign Exchange (FX)
11 39 (3.09%) Linux Command Line
12 29 (2.29%) Fixed Income
13 23 (1.82%) Management Information System
14 22 (1.74%) Clustering
15 17 (1.34%) Data Structures
16 15 (1.19%) Replication
17 14 (1.11%) Public Cloud
18 13 (1.03%) Enterprise Software
18 13 (1.03%) Security Operations Centre
18 13 (1.03%) Video Conferencing
Operating Systems
1 424 (33.54%) Windows
2 372 (29.43%) Unix
3 184 (14.56%) Red Hat Enterprise Linux
4 110 (8.70%) Windows Server
5 80 (6.33%) Ubuntu
6 72 (5.70%) CentOS
7 62 (4.91%) Solaris
8 42 (3.32%) Windows Server 2012
9 37 (2.93%) Windows Server 2008
10 27 (2.14%) Debian
11 17 (1.34%) SUSE
12 16 (1.27%) Android
12 16 (1.27%) Mac OS X
13 13 (1.03%) AIX
14 12 (0.95%) Windows 7
15 10 (0.79%) NetWare
16 9 (0.71%) Mac OS
17 8 (0.63%) Windows 10
18 5 (0.40%) Apple iOS
18 5 (0.40%) VMS
Processes & Methodologies
1 256 (20.25%) DevOps
2 196 (15.51%) Agile Software Development
3 129 (10.21%) Configuration Management
4 118 (9.34%) Electronic Trading
5 109 (8.62%) Continuous Integration
6 101 (7.99%) Low Latency
7 99 (7.83%) Open Source
8 88 (6.96%) Multithreading
9 86 (6.80%) ITIL
10 75 (5.93%) Mathematics
11 68 (5.38%) Software Engineering
12 63 (4.98%) Analytics
13 60 (4.75%) OOD
14 54 (4.27%) SDLC
15 51 (4.03%) Disaster Recovery
16 49 (3.88%) TDD
17 47 (3.72%) Scrum
18 44 (3.48%) OO
18 44 (3.48%) Visualisation
19 43 (3.40%) Cybersecurity
Programming Languages
1 394 (31.17%) Python
2 375 (29.67%) Java
3 363 (28.72%) SQL
4 197 (15.59%) JavaScript
5 173 (13.69%) C++
6 171 (13.53%) Bash Shell
7 168 (13.29%) Perl
8 144 (11.39%) Ruby
9 102 (8.07%) PHP
9 102 (8.07%) Shell Script
10 74 (5.85%) PowerShell
11 58 (4.59%) C#
12 56 (4.43%) Scala
13 54 (4.27%) C
14 20 (1.58%) PL/SQL
15 15 (1.19%) VB
16 14 (1.11%) Go
17 11 (0.87%) T-SQL
18 10 (0.79%) R
19 9 (0.71%) Groovy
Qualifications
1 197 (15.59%) Degree
2 76 (6.01%) Cisco Certification
3 47 (3.72%) CCNA
4 39 (3.09%) CCNP
5 33 (2.61%) Microsoft Certification
6 25 (1.98%) MCSE
7 24 (1.90%) RHCE
8 22 (1.74%) Security Cleared
9 19 (1.50%) ISEB
9 19 (1.50%) SANS
10 17 (1.34%) GCIA
10 17 (1.34%) GCIH
11 16 (1.27%) CISSP
12 15 (1.19%) RHCA
13 14 (1.11%) CISM
14 12 (0.95%) VMware Certified Professional (VCP)
15 11 (0.87%) GIAC
15 11 (0.87%) JNCIS
16 10 (0.79%) JNCIA
16 10 (0.79%) SC Cleared
Quality Assurance & Compliance
1 55 (4.35%) QA
2 18 (1.42%) SLA
3 15 (1.19%) ISO/IEC 27001
4 14 (1.11%) PCI DSS
5 7 (0.55%) PMO
6 4 (0.32%) MiFID
7 3 (0.24%) GCP
8 2 (0.16%) COBIT
8 2 (0.16%) JTAG
8 2 (0.16%) SDET
9 1 (0.079%) EMIR
9 1 (0.079%) Sarbanes-Oxley
System Software
1 113 (8.94%) Docker
2 93 (7.36%) VMware Infrastructure
3 92 (7.28%) Active Directory
4 31 (2.45%) vSphere
5 30 (2.37%) Virtual Machines
6 27 (2.14%) Hyper-V
7 25 (1.98%) Virtual Servers
8 24 (1.90%) NFS
9 21 (1.66%) XenApp
10 15 (1.19%) VMware ESX
11 14 (1.11%) Microsoft Virtual Server
12 12 (0.95%) KVM
12 12 (0.95%) Veritas Cluster Server
13 11 (0.87%) HDFS
14 10 (0.79%) Xen
15 8 (0.63%) XenServer
16 6 (0.47%) VMware ESXi
17 5 (0.40%) Samba
18 4 (0.32%) Oracle RAC
18 4 (0.32%) VirtualBox
Systems Management
1 235 (18.59%) Puppet
2 179 (14.16%) Opscode Chef
3 142 (11.23%) Ansible
4 46 (3.64%) Nagios
5 38 (3.01%) Terraform
6 35 (2.77%) Kubernetes
7 25 (1.98%) SCCM
8 19 (1.50%) Salt
9 14 (1.11%) FortiGate
9 14 (1.11%) Mesos
10 11 (0.87%) Cisco CUCM
10 11 (0.87%) Nessus
10 11 (0.87%) WSUS
11 10 (0.79%) EMC VPLEX
11 10 (0.79%) NetIQ Identity Manager
11 10 (0.79%) Simpana
12 8 (0.63%) Cisco UCCX
12 8 (0.63%) McAfee ePO
12 8 (0.63%) Network Intrusion Detection System
12 8 (0.63%) Red Hat Satellite
Vendors
1 173 (13.69%) Oracle
2 167 (13.21%) Red Hat
3 147 (11.63%) VMware
4 120 (9.49%) Microsoft
5 95 (7.52%) Cisco
6 54 (4.27%) Atlassian
7 42 (3.32%) Citrix
8 39 (3.09%) EMC
9 34 (2.69%) NetApp
10 33 (2.61%) HP
10 33 (2.61%) Veritas
11 32 (2.53%) Twitter
12 29 (2.29%) IBM
13 28 (2.22%) Google
14 26 (2.06%) CheckPoint
15 25 (1.98%) Juniper
15 25 (1.98%) TIBCO
16 23 (1.82%) Dell
17 21 (1.66%) F5
18 19 (1.50%) Sybase
City, London
Austin Fraser
Salary: £55000 - £80000 per annum
Posted: Yesterday
City, London
Client Server
Salary: £70k to £80k + benefits
Posted: 19 hours ago
City, London
Harris Global
Salary: From £50,000 to £60,000 per annum + bonus and benefits
Posted: 13 hours ago
City, London
Pioneer Search
Salary: £575 - £625 per day
Posted: 12 hours ago
City, London
Premier IT
Salary: £45000.00 - £55000.00 per annum
Posted: 19 hours ago
City, London
Venturi
Salary: £0.00 per annum
Posted: 9 hours ago
City, London
Stott & May
Posted: 11 hours ago
City, London
Client Server
Salary: £90k to £120k + bonus + benefits
Posted: 12 hours ago
City, London
Client Server
Salary: £80k to £100k + bonus + benefits
Posted: 12 hours ago
City, London
ANSON MCCADE
Salary: Circa £50,000 - £70,000 and strong bonus/benefits
Posted: 15 hours ago
City, London
Client Server
Salary: £55k to £70k + bonus + benefits
Posted: Yesterday
City, London
Harrington Starr
Salary: £60000 - £80000 per annum
Posted: Yesterday
City, London
Miller Maxwell Ltd
Salary: From £90,000 to £125,000 per annum + Bonus + Benefits
Posted: Yesterday
City, London
Harrington Starr
Salary: £60000 - £85000 per annum + plus very strong benefits
Posted: 14 hours ago
City, London
Client Server
Salary: £80k to £120k + bonus + benefits
Posted: Yesterday
City, London
Clearwater People Solutions
Salary: £25000 - £34000 Per Annum DOE
Posted: 10 hours ago
City, London
AdRoc Group
Salary: From £55,000 to £60,000 per annum + Benefits
Posted: Yesterday
City, London
Talent Point Ltd
Salary: £40000.00 - £60000.00 per annum
Posted: 2 days ago
City, London
Understanding Recruitment
Salary: £25000.00 - £30000.00 per annum + Benefits
Posted: 2 days ago
City, London
Senitor Associates
Salary: £30000 - £35000 per annum
Posted: 2 days ago
City, London
Miller Maxwell Ltd
Salary: From £50,000 to £70,000 per annum + Bonus & Benefits
Posted: Yesterday
City, London
Burns Sheehan
Salary: £60000 - £65000 per annum
Posted: 2 days ago
City, London
Premier Media
Posted: Yesterday
City, London
Miller Maxwell Ltd
Salary: From £50,000 to £60,000 per annum + Bonus & Benefits
Posted: Yesterday
City, London
Absolute Solution Limited
Salary: From £35,000 to £45,000 per annum
Posted: Yesterday
City, London
Linux Recruit
Salary: £60000 - £70000 per annum + benefits
Posted: 2 days ago
City, London
Dupen Recruitment Services
Salary: £30000 - £40000 per annum + range of benefits
Posted: 2 days ago
City, London
Senitor Associates
Salary: £45000 - £50000 per annum
Posted: 2 days ago
City, London
ComputAppoint
Salary: £80000 - £90000 per annum + bonus + excellent benefits
Posted: Yesterday
City, London
Stott & May
Salary: £50000 - £60000 per annum
Posted: Yesterday