Period
to 23 February 2018

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 February 2018 with a comparison to the same period in the previous 2 years.

Linux
Central London > City of London
6 months to
23 Feb 2018
Same period 2017 Same period 2016
Rank 17 14 15
Rank change year-on-year -3 +1 +1
Permanent jobs citing Linux 1,072 1,261 1,560
As % of all permanent IT jobs advertised in the City of London 10.00% 12.06% 11.11%
As % of the Operating Systems category 44.89% 48.37% 44.04%
Number of salaries quoted 978 1,130 1,396
City of London median annual salary £65,000 £62,500 £60,000
Median salary % change year-on-year +4.00% +4.17% +9.09%
10th Percentile £41,250 £36,250 £37,500
90th Percentile £93,750 £101,250 £93,750
Central London median annual salary £62,500 £60,000 £60,000
% change year-on-year +4.17% - +9.09%

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 2,388 2,607 3,542
As % of all permanent IT jobs advertised in the City of London 22.27% 24.94% 25.22%
Number of salaries quoted 2,173 2,359 3,126
City of London median annual salary £58,500 £57,500 £55,000
Median salary % change year-on-year +1.74% +4.55% +4.76%
10th Percentile £31,250 £29,750 £30,000
90th Percentile £87,500 £92,500 £86,250
Central London median annual salary £55,000 £55,000 £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 February 2018.

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 February 2018. 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
London Bridge -5 1 - -
Linux
Central London

For the 6 months to 23 February 2018, IT jobs citing Linux also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the City of London region with a requirement for Linux.

1 443 (41.32%) Finance
2 379 (35.35%) Python
3 317 (29.57%) Windows
4 312 (29.10%) DevOps
5 289 (26.96%) Java
6 282 (26.31%) Amazon AWS
7 279 (26.03%) Unix
8 269 (25.09%) SQL
9 207 (19.31%) Docker
10 191 (17.82%) Agile Software Development
11 186 (17.35%) Ansible
12 177 (16.51%) Puppet
13 167 (15.58%) Perl
14 164 (15.30%) MySQL
15 158 (14.74%) Bash Shell
16 153 (14.27%) Banking
17 149 (13.90%) Jenkins
18 146 (13.62%) C++
19 142 (13.25%) JavaScript
20 140 (13.06%) VMware
20 140 (13.06%) Microsoft Azure
21 137 (12.78%) Degree
22 130 (12.13%) Configuration Management
23 127 (11.85%) SQL Server
23 127 (11.85%) Red Hat Enterprise Linux
24 123 (11.47%) Opscode Chef
25 122 (11.38%) Firewall
26 121 (11.29%) Oracle
27 119 (11.10%) Git (software)
28 118 (11.01%) Shell Script

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 84 (7.84%) Apache
2 45 (4.20%) Elasticsearch
3 43 (4.01%) Tomcat
4 37 (3.45%) nginx
5 34 (3.17%) Apache Spark
6 23 (2.15%) Confluence
6 23 (2.15%) IIS
7 22 (2.05%) Ethereum
8 20 (1.87%) MS Exchange
9 18 (1.68%) OpenStack
10 12 (1.12%) CMS
11 9 (0.84%) Apache Solr
12 8 (0.75%) JBoss
13 7 (0.65%) WebLogic
13 7 (0.65%) WordPress
14 6 (0.56%) WebSphere
15 5 (0.47%) ColdFusion
15 5 (0.47%) Hyperledger
15 5 (0.47%) Skype for Business
16 4 (0.37%) SharePoint
Applications
1 18 (1.68%) Microsoft Excel
2 17 (1.59%) MS Visio
3 13 (1.21%) Spreadsheet
4 10 (0.93%) Microsoft Office
5 2 (0.19%) HipChat
5 2 (0.19%) SPSS
Business Applications
1 17 (1.59%) Distributed Ledger
2 12 (1.12%) MetaTrader
3 8 (0.75%) RMDS
4 6 (0.56%) Payment Gateway
5 3 (0.28%) ION MarketView
6 2 (0.19%) Dynamics NAV
6 2 (0.19%) Magento
6 2 (0.19%) R3 Corda
7 1 (0.093%) BusinessWorks
7 1 (0.093%) CSG Singleview
7 1 (0.093%) Dynamics CRM
7 1 (0.093%) Infor M3
7 1 (0.093%) Kondor
7 1 (0.093%) NetSuite
7 1 (0.093%) Oracle Applications
7 1 (0.093%) PeopleSoft CRM
7 1 (0.093%) Shopify
7 1 (0.093%) WebTrends
7 1 (0.093%) Workday HCM
Cloud Services
1 282 (26.31%) Amazon AWS
2 140 (13.06%) Microsoft Azure
3 38 (3.54%) SaaS
4 37 (3.45%) AWS CloudFormation
4 37 (3.45%) GitHub
5 36 (3.36%) Cloud Computing
6 35 (3.26%) Amazon EC2
7 27 (2.52%) Amazon S3
8 25 (2.33%) IaaS
9 23 (2.15%) Office 365
10 20 (1.87%) Google Cloud Platform
11 17 (1.59%) PaaS
12 9 (0.84%) Amazon ElastiCache
12 9 (0.84%) AWS Lambda
12 9 (0.84%) Serverless
13 7 (0.65%) G Suite
14 6 (0.56%) npm
14 6 (0.56%) OpenShift
14 6 (0.56%) Slack
14 6 (0.56%) Trello
Communications & Networking
1 122 (11.38%) Firewall
2 97 (9.05%) TCP/IP
3 55 (5.13%) DNS
4 48 (4.48%) Internet
5 34 (3.17%) LAN
6 32 (2.99%) WAN
7 30 (2.80%) SAN
8 27 (2.52%) VPN
9 24 (2.24%) HTTP
10 21 (1.96%) iSCSI
11 20 (1.87%) NetScaler
12 17 (1.59%) FIX Connectivity
13 13 (1.21%) Multicast
14 12 (1.12%) Cisco ASA
14 12 (1.12%) Fibre Channel
14 12 (1.12%) SSL
15 11 (1.03%) DHCP
15 11 (1.03%) Wireless
16 10 (0.93%) Intrusion Detection
16 10 (0.93%) IPsec
Database & Business Intelligence
1 164 (15.30%) MySQL
2 127 (11.85%) SQL Server
3 79 (7.37%) Relational Database
4 64 (5.97%) Big Data
5 62 (5.78%) PostgreSQL
6 57 (5.32%) MongoDB
7 55 (5.13%) NoSQL
8 51 (4.76%) RDBMS
9 39 (3.64%) Blockchain
10 34 (3.17%) Hadoop
11 33 (3.08%) Oracle Database
12 26 (2.43%) Redis
13 16 (1.49%) Amazon RDS
14 13 (1.21%) Apache Cassandra
14 13 (1.21%) MS Access
15 12 (1.12%) SQL Server 2012
16 11 (1.03%) Oracle Database 11g
17 10 (0.93%) Apache Hive
18 9 (0.84%) Oracle Database 10g
19 8 (0.75%) HBase
Development Applications
1 149 (13.90%) Jenkins
2 119 (11.10%) Git (software)
3 71 (6.62%) JIRA
4 45 (4.20%) Maven
5 39 (3.64%) TeamCity
6 37 (3.45%) Atlassian Bamboo
7 31 (2.89%) Subversion
8 23 (2.15%) Selenium
9 20 (1.87%) ClearCase
9 20 (1.87%) GitLab
9 20 (1.87%) Gradle
10 16 (1.49%) Ant
10 16 (1.49%) JUnit
11 15 (1.40%) IntelliJ
11 15 (1.40%) Visual Studio
12 14 (1.31%) Bitbucket
12 14 (1.31%) Sonatype Nexus
13 13 (1.21%) Mocha
13 13 (1.21%) Pivotal Tracker
13 13 (1.21%) Vagrant
General
1 443 (41.32%) Finance
2 153 (14.27%) Banking
3 102 (9.51%) Front Office
4 44 (4.10%) Financial Institution
5 43 (4.01%) Retail
6 34 (3.17%) Telecoms
7 31 (2.89%) Back Office
8 23 (2.15%) Advertising
9 22 (2.05%) Publishing
10 20 (1.87%) Investment Banking
11 16 (1.49%) Legal
11 16 (1.49%) Marketing
12 15 (1.40%) Law
13 14 (1.31%) Games
14 10 (0.93%) French Language
15 9 (0.84%) Multimedia
16 7 (0.65%) Billing
17 4 (0.37%) German Language
18 3 (0.28%) Spanish Language
19 2 (0.19%) Retail Finance
Job Titles
1 256 (23.88%) Developer
2 155 (14.46%) DevOps Engineer
3 111 (10.35%) Analyst
4 88 (8.21%) Java Developer
5 77 (7.18%) Senior Developer
6 68 (6.34%) Applications Support
7 63 (5.88%) Administrator
8 62 (5.78%) Linux Engineer
9 50 (4.66%) Consultant
10 45 (4.20%) Systems Administrator
11 42 (3.92%) Infrastructure Engineer
12 41 (3.82%) Support Analyst
13 40 (3.73%) Senior Java Developer
14 39 (3.64%) Architect
14 39 (3.64%) C++ Developer
15 38 (3.54%) Python Developer
16 37 (3.45%) AWS Engineer
16 37 (3.45%) Systems Engineer
17 36 (3.36%) Linux Administrator
17 36 (3.36%) Support Engineer
Libraries, Frameworks & Software Standards
1 90 (8.40%) FIX Protocol
2 79 (7.37%) HTML
3 68 (6.34%) Web Services
4 62 (5.78%) Node.js
5 59 (5.50%) CSS
6 58 (5.41%) XML
7 43 (4.01%) LAMP
8 42 (3.92%) Spring
9 40 (3.73%) .NET
10 38 (3.54%) REST
11 30 (2.80%) AngularJS
12 28 (2.61%) HTML5
12 28 (2.61%) RESTful
13 26 (2.43%) Kafka
14 25 (2.33%) jQuery
14 25 (2.33%) React
15 23 (2.15%) RabbitMQ
16 22 (2.05%) JSON
17 21 (1.96%) LEMP Stack
18 19 (1.77%) Middleware
Miscellaneous
1 98 (9.14%) Fintech
2 66 (6.16%) Data Centre
3 60 (5.60%) Computer Science
4 55 (5.13%) Equities
4 55 (5.13%) Foreign Exchange (FX)
5 38 (3.54%) Public Cloud
6 34 (3.17%) Hedge funds
6 34 (3.17%) Linux Command Line
7 33 (3.08%) Algorithms
8 31 (2.89%) Analytical Skills
8 31 (2.89%) Management Information System
9 27 (2.52%) Derivative
10 25 (2.33%) Fixed Income
11 22 (2.05%) Bitcoin
12 20 (1.87%) Client/Server
13 18 (1.68%) Greenfield Project
14 17 (1.59%) Data Structures
15 16 (1.49%) BBC
15 16 (1.49%) STB
16 14 (1.31%) Private Cloud
Operating Systems
1 317 (29.57%) Windows
2 279 (26.03%) Unix
3 127 (11.85%) Red Hat Enterprise Linux
4 91 (8.49%) CentOS
5 74 (6.90%) Windows Server
6 62 (5.78%) Ubuntu
7 53 (4.94%) Solaris
8 21 (1.96%) Windows Server 2008
9 18 (1.68%) Windows Server 2012
10 15 (1.40%) Debian
11 9 (0.84%) Android
11 9 (0.84%) Oracle Linux
11 9 (0.84%) Windows 7
12 8 (0.75%) Embedded Linux
12 8 (0.75%) VMS
13 7 (0.65%) openSUSE
14 6 (0.56%) Kali Linux
14 6 (0.56%) Windows 10
14 6 (0.56%) Windows Server 2003
15 5 (0.47%) Fedora
Processes & Methodologies
1 312 (29.10%) DevOps
2 191 (17.82%) Agile Software Development
3 130 (12.13%) Configuration Management
4 105 (9.79%) Continuous Integration
5 77 (7.18%) TDD
6 76 (7.09%) Low Latency
6 76 (7.09%) Multithreading
6 76 (7.09%) Software Engineering
7 75 (7.00%) Open Source
8 70 (6.53%) Electronic Trading
9 63 (5.88%) Microservices
10 61 (5.69%) SDLC
11 59 (5.50%) Migration
12 54 (5.04%) Test Automation
13 52 (4.85%) ITIL
14 48 (4.48%) Mathematics
15 47 (4.38%) OO
16 44 (4.10%) Analytics
17 43 (4.01%) Continuous Delivery
18 38 (3.54%) Scrum
Programming Languages
1 379 (35.35%) Python
2 289 (26.96%) Java
3 269 (25.09%) SQL
4 167 (15.58%) Perl
5 158 (14.74%) Bash Shell
6 146 (13.62%) C++
7 142 (13.25%) JavaScript
8 118 (11.01%) Shell Script
9 101 (9.42%) Ruby
10 91 (8.49%) PHP
11 65 (6.06%) PowerShell
12 57 (5.32%) C
13 49 (4.57%) C#
14 29 (2.71%) Go
15 23 (2.15%) Solidity
16 16 (1.49%) ES6
17 13 (1.21%) T-SQL
18 10 (0.93%) Scala
19 9 (0.84%) TypeScript
20 8 (0.75%) Korn
Qualifications
1 137 (12.78%) Degree
2 37 (3.45%) Computer Science Degree
3 26 (2.43%) RHCE
4 18 (1.68%) CISSP
5 14 (1.31%) Security Cleared
6 13 (1.21%) Cisco Certification
6 13 (1.21%) SANS
7 10 (0.93%) Numerate Degree
8 9 (0.84%) Linux+ Certification
8 9 (0.84%) PhD
8 9 (0.84%) RHCSA
9 8 (0.75%) GIAC
9 8 (0.75%) ISEB
9 8 (0.75%) ISTQB
9 8 (0.75%) Microsoft Certification
9 8 (0.75%) VMware Certified Professional (VCP)
10 7 (0.65%) CISM
10 7 (0.65%) CREST Certified
10 7 (0.65%) SC Cleared
11 6 (0.56%) Master's Degree
Quality Assurance & Compliance
1 33 (3.08%) QA
2 14 (1.31%) GCP
2 14 (1.31%) ISO/IEC 27001
2 14 (1.31%) PCI DSS
3 13 (1.21%) SLA
4 9 (0.84%) Data Quality
5 5 (0.47%) MiFID
5 5 (0.47%) SEPA
6 4 (0.37%) OIPF
7 2 (0.19%) FISMA
7 2 (0.19%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
7 2 (0.19%) NIST 800
8 1 (0.093%) DICOM
8 1 (0.093%) EMIR
8 1 (0.093%) HL7
8 1 (0.093%) Solvency II
System Software
1 207 (19.31%) Docker
2 84 (7.84%) VMware Infrastructure
3 63 (5.88%) Active Directory
4 22 (2.05%) Hyper-V
4 22 (2.05%) Virtual Machines
5 20 (1.87%) VMware ESXi
6 12 (1.12%) LXC
7 11 (1.03%) VMware Workstation
8 9 (0.84%) KVM
8 9 (0.84%) vSphere
9 6 (0.56%) pfSense
9 6 (0.56%) Snort
10 5 (0.47%) HDFS
11 4 (0.37%) Apache Flume
11 4 (0.37%) Firmware
11 4 (0.37%) Xen
12 3 (0.28%) iptables
13 2 (0.19%) BitLocker
13 2 (0.19%) Virtual Servers
13 2 (0.19%) VMware NSX
Systems Management
1 186 (17.35%) Ansible
2 177 (16.51%) Puppet
3 123 (11.47%) Opscode Chef
4 90 (8.40%) Terraform
5 89 (8.30%) Kubernetes
6 43 (4.01%) Nagios
7 20 (1.87%) Salt
8 15 (1.40%) Docker Swarm
9 14 (1.31%) Nessus
10 12 (1.12%) Grafana
10 12 (1.12%) logstash
10 12 (1.12%) SCCM
11 11 (1.03%) ZABBIX
12 10 (0.93%) Consul
12 10 (0.93%) Kibana
12 10 (0.93%) Perfmon
12 10 (0.93%) SolarWinds Orion
13 9 (0.84%) FortiGate
14 7 (0.65%) OpenVAS
14 7 (0.65%) Red Hat Spacewalk
Vendors
1 140 (13.06%) VMware
2 121 (11.29%) Oracle
3 113 (10.54%) Microsoft
4 112 (10.45%) Red Hat
5 62 (5.78%) Sybase
6 44 (4.10%) Cisco
7 34 (3.17%) Splunk
8 27 (2.52%) HP
9 26 (2.43%) Citrix
10 25 (2.33%) SolarWinds
11 24 (2.24%) Murex
12 22 (2.05%) Google
13 21 (1.96%) TIBCO
14 18 (1.68%) New Relic
15 17 (1.59%) BT
16 16 (1.49%) Apple
16 16 (1.49%) Arqiva
16 16 (1.49%) NetApp
17 14 (1.31%) Juniper
17 14 (1.31%) Palo Alto