Period
to 23 October 2017

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 6 months to 23 October 2017 with a comparison to the same period in the previous 2 years.

Linux
Central London > City of London
6 months to
23 Oct 2017
Same period 2016 Same period 2015
Rank 16 16 16
Rank change year-on-year 0 0 +1
Permanent jobs citing Linux 1128 1379 2053
As % of all permanent IT jobs advertised in the City of London 11.29% 11.64% 11.40%
As % of the Operating Systems category 47.08% 46.56% 45.51%
Number of salaries quoted 1039 1243 1786
City of London median annual salary £60,000 £60,000 £57,500
Median salary % change year-on-year - +4.35% +4.55%
10th Percentile £35,000 £37,500 £36,750
90th Percentile £95,000 £97,500 £88,750
Central London median annual salary £60,000 £58,000 £57,500
% change year-on-year +3.45% +0.87% +4.55%

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 the City of London with a requirement for operating system skills.

All Operating Systems
City of London
Permanent vacancies with a requirement for operating system skills 2396 2962 4511
As % of all permanent IT jobs advertised in the City of London 23.99% 25.00% 25.05%
Number of salaries quoted 2161 2677 3921
City of London median annual salary £55,000 £55,000 £52,500
Median salary % change year-on-year - +4.76% +5.00%
10th Percentile £30,750 £31,000 £29,000
90th Percentile £86,250 £85,000 £81,250
Central London median annual salary £55,000 £52,500 £52,500
% change year-on-year +4.76% - +5.00%

Linux
Job Vacancy Trend in the City of London

Job postings citing Linux as a percentage of all IT jobs advertised in the City of London.

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 6 months to 23 October 2017.

Salary histogram for Linux in the City of London

Linux
Job Locations in the City of London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Linux within the City of London region over the 6 months to 23 October 2017. 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
Moorgate -2 1 £42,500 -35.85%
Linux
Central London

For the 6 months to 23 October 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.

1 417 (36.97%) Windows
2 400 (35.46%) Finance
3 392 (34.75%) Python
4 361 (32.00%) Unix
5 330 (29.26%) SQL
6 319 (28.28%) Java
7 282 (25.00%) DevOps
8 214 (18.97%) Amazon AWS
9 190 (16.84%) Agile Software Development
10 181 (16.05%) Puppet
11 178 (15.78%) MySQL
12 166 (14.72%) Ansible
13 161 (14.27%) Degree
14 156 (13.83%) Bash Shell
15 151 (13.39%) C++
16 146 (12.94%) Docker
17 143 (12.68%) SQL Server
18 140 (12.41%) Perl
19 137 (12.15%) Firewall
20 133 (11.79%) Banking
20 133 (11.79%) Oracle
21 132 (11.70%) JavaScript
22 123 (10.90%) VMware
23 122 (10.82%) Jenkins
24 118 (10.46%) Fintech
25 115 (10.20%) Red Hat
26 107 (9.49%) Shell Script
26 107 (9.49%) ITIL
27 103 (9.13%) Front Office
28 102 (9.04%) Continuous Integration

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 80 (7.09%) Apache
2 65 (5.76%) Tomcat
3 36 (3.19%) JBoss
4 30 (2.66%) Elasticsearch
4 30 (2.66%) nginx
5 28 (2.48%) Apache Spark
6 27 (2.39%) WebLogic
7 26 (2.30%) Confluence
8 25 (2.22%) OpenStack
9 23 (2.04%) IIS
9 23 (2.04%) MS Exchange
10 20 (1.77%) CMS
11 19 (1.68%) WebSphere
12 17 (1.51%) SharePoint
13 11 (0.98%) Skype for Business
13 11 (0.98%) WordPress
14 8 (0.71%) NetWeaver
14 8 (0.71%) SharePoint 2010
15 7 (0.62%) GemFire
15 7 (0.62%) Jetty
Applications
1 18 (1.60%) Microsoft Excel
2 17 (1.51%) MS Visio
3 15 (1.33%) Spreadsheet
4 10 (0.89%) Microsoft Office
5 4 (0.35%) HipChat
6 3 (0.27%) Microsoft PowerPoint
Business Applications
1 8 (0.71%) SAP BPC
2 4 (0.35%) R3 Corda
3 3 (0.27%) Workday HCM
4 2 (0.18%) ION MarketView
4 2 (0.18%) Magento
4 2 (0.18%) Temenos T24
5 1 (0.089%) BusinessWorks
5 1 (0.089%) Dynamics CRM
5 1 (0.089%) Eze OMS
5 1 (0.089%) Kondor
5 1 (0.089%) Markit EDM
5 1 (0.089%) Oracle Applications
5 1 (0.089%) RMDS
5 1 (0.089%) thinkFolio
Cloud Services
1 214 (18.97%) Amazon AWS
2 98 (8.69%) Microsoft Azure
3 36 (3.19%) Office 365
4 32 (2.84%) AWS CloudFormation
4 32 (2.84%) SaaS
5 29 (2.57%) Cloud Computing
6 20 (1.77%) Amazon S3
7 18 (1.60%) Amazon EC2
8 15 (1.33%) Google Cloud Platform
9 11 (0.98%) Amazon ELB
9 11 (0.98%) IaaS
9 11 (0.98%) Virtual Private Cloud
10 10 (0.89%) Amazon SQS
10 10 (0.89%) DigitalOcean
10 10 (0.89%) PaaS
10 10 (0.89%) Serverless
11 9 (0.80%) GitHub
12 8 (0.71%) AWS Lambda
13 7 (0.62%) Heroku
14 6 (0.53%) Rackspace Cloud
Communications & Networking
1 137 (12.15%) Firewall
2 92 (8.16%) TCP/IP
3 52 (4.61%) SAN
4 42 (3.72%) DNS
5 36 (3.19%) HTTP
5 36 (3.19%) Internet
6 33 (2.93%) LAN
7 31 (2.75%) WAN
8 26 (2.30%) VPN
9 25 (2.22%) Network Security
10 19 (1.68%) Cisco ASA
10 19 (1.68%) DHCP
11 18 (1.60%) iSCSI
12 17 (1.51%) VLAN
13 16 (1.42%) SSL
14 13 (1.15%) FIX Connectivity
14 13 (1.15%) FTP
14 13 (1.15%) VoIP
15 12 (1.06%) LDAP
16 11 (0.98%) HTTPS
Database & Business Intelligence
1 178 (15.78%) MySQL
2 143 (12.68%) SQL Server
3 87 (7.71%) Relational Database
4 53 (4.70%) PostgreSQL
5 47 (4.17%) MongoDB
6 41 (3.63%) NoSQL
7 39 (3.46%) RDBMS
8 38 (3.37%) Big Data
9 36 (3.19%) Hadoop
10 33 (2.93%) Apache Cassandra
11 28 (2.48%) Oracle Database
12 27 (2.39%) Redis
13 21 (1.86%) SQL Server Integration Services
14 17 (1.51%) SQL Server Reporting Services
15 14 (1.24%) KDB
15 14 (1.24%) MS Access
16 12 (1.06%) Blockchain
16 12 (1.06%) SQL Server 2008
17 11 (0.98%) Kdb+
18 10 (0.89%) Amazon RDS
Development Applications
1 122 (10.82%) Jenkins
2 92 (8.16%) JIRA
3 72 (6.38%) Git (software)
4 36 (3.19%) Maven
5 31 (2.75%) TeamCity
6 28 (2.48%) Selenium
7 27 (2.39%) Subversion
8 22 (1.95%) Atlassian Bamboo
9 20 (1.77%) JUnit
10 15 (1.33%) Cucumber
11 13 (1.15%) Gatling
11 13 (1.15%) Vagrant
12 11 (0.98%) Sonatype Nexus
12 11 (0.98%) webpack
13 10 (0.89%) CMake
14 9 (0.80%) Gradle
14 9 (0.80%) Grunt
14 9 (0.80%) Hamcrest
14 9 (0.80%) jMock
15 8 (0.71%) Mocha
General
1 400 (35.46%) Finance
2 133 (11.79%) Banking
3 103 (9.13%) Front Office
4 41 (3.63%) Back Office
5 39 (3.46%) Investment Banking
6 31 (2.75%) Telecoms
7 27 (2.39%) Legal
8 23 (2.04%) Advertising
9 18 (1.60%) Financial Institution
10 17 (1.51%) Marketing
10 17 (1.51%) Retail
11 13 (1.15%) Publishing
12 11 (0.98%) Games
13 7 (0.62%) French Language
14 5 (0.44%) Law
15 4 (0.35%) Spanish Language
16 3 (0.27%) Billing
16 3 (0.27%) German Language
16 3 (0.27%) Multimedia
16 3 (0.27%) Prime Brokerage
Job Titles
1 240 (21.28%) Developer
2 153 (13.56%) DevOps Engineer
3 133 (11.79%) Analyst
4 89 (7.89%) Administrator
5 76 (6.74%) Java Developer
6 73 (6.47%) Support Engineer
7 71 (6.29%) Linux Engineer
8 66 (5.85%) Applications Support
9 56 (4.96%) Support Analyst
10 50 (4.43%) Systems Administrator
11 48 (4.26%) Senior Developer
12 44 (3.90%) Graduate
13 40 (3.55%) Linux/Unix DevOps
14 39 (3.46%) Infrastructure Engineer
15 38 (3.37%) C++ Developer
16 35 (3.10%) Systems Engineer
17 34 (3.01%) Senior DevOps
18 33 (2.93%) Linux Administrator
19 31 (2.75%) Consultant
19 31 (2.75%) Senior DevOps Engineer
Libraries, Frameworks & Software Standards
1 92 (8.16%) FIX Protocol
2 79 (7.00%) HTML
2 79 (7.00%) Web Services
3 73 (6.47%) XML
4 53 (4.70%) CSS
5 50 (4.43%) Spring
6 48 (4.26%) .NET
7 46 (4.08%) LAMP
8 32 (2.84%) Node.js
8 32 (2.84%) REST
9 31 (2.75%) SOAP
10 29 (2.57%) Elastic Stack
11 28 (2.48%) AngularJS
12 27 (2.39%) Hibernate
13 24 (2.13%) Django
14 22 (1.95%) Laravel
14 22 (1.95%) LEMP Stack
14 22 (1.95%) React
15 20 (1.77%) HTML5
15 20 (1.77%) RESTful
Miscellaneous
1 118 (10.46%) Fintech
2 61 (5.41%) Data Centre
3 58 (5.14%) Equities
4 56 (4.96%) Computer Science
5 51 (4.52%) Analytical Skills
6 42 (3.72%) Fixed Income
7 35 (3.10%) Linux Command Line
8 33 (2.93%) Derivative
9 31 (2.75%) Replication
10 28 (2.48%) Foreign Exchange (FX)
11 25 (2.22%) Algorithms
11 25 (2.22%) Greenfield Project
11 25 (2.22%) Hedge funds
12 22 (1.95%) Clustering
13 21 (1.86%) Management Information System
14 20 (1.77%) User Experience
15 19 (1.68%) Client/Server
15 19 (1.68%) Public Cloud
16 18 (1.60%) Enterprise Software
17 10 (0.89%) Mobile App
Operating Systems
1 417 (36.97%) Windows
2 361 (32.00%) Unix
3 98 (8.69%) Red Hat Enterprise Linux
4 96 (8.51%) CentOS
5 82 (7.27%) Windows Server
6 62 (5.50%) Ubuntu
7 56 (4.96%) Solaris
8 27 (2.39%) Debian
9 23 (2.04%) Windows Server 2008
10 17 (1.51%) Windows 7
11 14 (1.24%) Windows 10
12 13 (1.15%) AIX
13 11 (0.98%) Apple iOS
14 10 (0.89%) Mac OS X
14 10 (0.89%) Windows Server 2012
15 9 (0.80%) Windows 8
16 8 (0.71%) Kali Linux
17 7 (0.62%) Android
18 6 (0.53%) VMS
19 4 (0.35%) Windows Server 2003
Processes & Methodologies
1 282 (25.00%) DevOps
2 190 (16.84%) Agile Software Development
3 107 (9.49%) ITIL
4 102 (9.04%) Continuous Integration
4 102 (9.04%) Electronic Trading
5 84 (7.45%) Configuration Management
6 71 (6.29%) Open Source
7 67 (5.94%) SDLC
8 64 (5.67%) Microservices
9 60 (5.32%) TDD
10 58 (5.14%) Test Automation
11 55 (4.88%) Software Engineering
12 47 (4.17%) Performance Tuning
13 44 (3.90%) OO
13 44 (3.90%) SOA
14 43 (3.81%) Low Latency
15 40 (3.55%) Scrum
16 39 (3.46%) Mathematics
16 39 (3.46%) SIEM
17 38 (3.37%) Continuous Delivery
Programming Languages
1 392 (34.75%) Python
2 330 (29.26%) SQL
3 319 (28.28%) Java
4 156 (13.83%) Bash Shell
5 151 (13.39%) C++
6 140 (12.41%) Perl
7 132 (11.70%) JavaScript
8 107 (9.49%) Shell Script
9 100 (8.87%) PHP
10 95 (8.42%) Ruby
11 74 (6.56%) PowerShell
12 53 (4.70%) C
13 51 (4.52%) C#
14 34 (3.01%) Go
15 20 (1.77%) T-SQL
16 16 (1.42%) Scala
17 12 (1.06%) ES6
17 12 (1.06%) PHP 7
17 12 (1.06%) VB
18 11 (0.98%) Korn
Qualifications
1 161 (14.27%) Degree
2 33 (2.93%) Security Cleared
3 25 (2.22%) Computer Science Degree
4 20 (1.77%) RHCE
5 19 (1.68%) ISEB
6 15 (1.33%) Cisco Certification
7 14 (1.24%) SANS
8 13 (1.15%) ISTQB
9 12 (1.06%) GIAC
10 11 (0.98%) DV Cleared
10 11 (0.98%) VMware Certified Professional (VCP)
11 10 (0.89%) CISSP
12 9 (0.80%) CCNP
12 9 (0.80%) RHCSA
13 8 (0.71%) CREST Certified
13 8 (0.71%) Linux+ Certification
13 8 (0.71%) Master's Degree
13 8 (0.71%) SC Cleared
14 7 (0.62%) GCIA
14 7 (0.62%) GCIH
Quality Assurance & Compliance
1 63 (5.59%) QA
2 20 (1.77%) ISO/IEC 27001
2 20 (1.77%) SLA
3 13 (1.15%) PCI DSS
4 6 (0.53%) MiFID
5 5 (0.44%) NIST 800
6 3 (0.27%) Data Quality
6 3 (0.27%) GCP
6 3 (0.27%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
6 3 (0.27%) SEPA
6 3 (0.27%) Solvency II
7 2 (0.18%) EMIR
7 2 (0.18%) FISMA
8 1 (0.089%) DICOM
8 1 (0.089%) GDPR
8 1 (0.089%) HL7
8 1 (0.089%) PMO
System Software
1 146 (12.94%) Docker
2 84 (7.45%) VMware Infrastructure
3 77 (6.83%) Active Directory
4 26 (2.30%) Virtual Machines
5 25 (2.22%) vSphere
6 24 (2.13%) VMware ESXi
7 18 (1.60%) Hyper-V
8 12 (1.06%) VMware Workstation
9 11 (0.98%) Xen
10 10 (0.89%) KVM
10 10 (0.89%) XenApp
11 9 (0.80%) LXC
11 9 (0.80%) pfSense
11 9 (0.80%) XenServer
12 8 (0.71%) Cronacle
12 8 (0.71%) iptables
12 8 (0.71%) NFS
13 7 (0.62%) Varnish
14 6 (0.53%) VirtualBox
15 5 (0.44%) XenDesktop
Systems Management
1 181 (16.05%) Puppet
2 166 (14.72%) Ansible
3 100 (8.87%) Opscode Chef
4 67 (5.94%) Terraform
5 55 (4.88%) Kubernetes
6 46 (4.08%) Nagios
7 23 (2.04%) Salt
8 18 (1.60%) Grafana
9 16 (1.42%) Nessus
10 15 (1.33%) ITRS Geneos
11 14 (1.24%) SCCM
12 11 (0.98%) vRealize
12 11 (0.98%) ZABBIX
13 10 (0.89%) BMC PATROL
13 10 (0.89%) QRadar
14 9 (0.80%) Tivoli
15 8 (0.71%) FortiGate
15 8 (0.71%) Graphite
15 8 (0.71%) Packer
16 7 (0.62%) HAProxy
Vendors
1 133 (11.79%) Oracle
2 123 (10.90%) VMware
3 115 (10.20%) Red Hat
4 95 (8.42%) Microsoft
5 80 (7.09%) Cisco
6 73 (6.47%) Sybase
7 44 (3.90%) Citrix
8 38 (3.37%) Splunk
9 33 (2.93%) HP
10 23 (2.04%) Atlassian
11 22 (1.95%) IBM
12 21 (1.86%) Google
13 20 (1.77%) CheckPoint
13 20 (1.77%) Juniper
13 20 (1.77%) Murex
13 20 (1.77%) NetApp
14 19 (1.68%) F5
15 16 (1.42%) ServiceNow
15 16 (1.42%) TIBCO
16 15 (1.33%) Brocade