The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Linux skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Linux over the 3 months to 24 June 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Linux
London / City of London
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 17 12 19
Rank change year-on-year -5 +7  
Contract jobs citing Linux 290 348 441
As % of all contract IT jobs advertised in the City of London 8.88% 10.29% 7.58%
As % of the Operating Systems category 44.96% 47.41% 37.53%
Number of daily rates quoted 233 300 353
Median daily rate £525 £475 £450
Median daily rate % change year-on-year +10.52% +5.55%  
90% offered a daily rate of more than £400 £363 £313
10% offered a daily rate of more than £625 £650 £650
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.66%  
Number of hourly rates quoted 0 0 10
Median hourly rate - - £22.83
UK excluding London median hourly rate £40.00 £40.00 £37.50
% change year-on-year - +6.66%  

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

Contract Operating System Skills
City of London
Contract job vacancies with a requirement for operating system skills 645 734 1175
As % of all contract IT job vacancies advertised in the City of London 19.75% 21.70% 20.19%
Number of daily rates quoted 506 609 904
Median daily rate £450 £459 £400
Median daily rate % change year-on-year -1.85% +14.62%  
90% offered a daily rate of more than £220 £250 £225
10% offered a daily rate of more than £625 £600 £575
UK excluding London median daily rate £375 £363 £348
% change year-on-year +3.44% +4.31%  
Number of hourly rates quoted 18 21 53
Median hourly rate £21.25 £17.50 £20.00
Median hourly rate % change year-on-year +21.42% -12.50%  
90% offered a hourly rate of more than £14.98 £12.50 £12.35
10% offered a hourly rate of more than £175.00 £22.00 £34.30
UK excluding London median hourly rate £15.50 £17.00 £16.20
% change year-on-year -8.82% +4.93%  

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 contract or permanent IT jobs with a match in the Operating Systems category.

Job vacancy trend for Linux in the City of London

Linux
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Linux in the City of London.

Contractor daily rate trend for Linux in the City of London

Linux
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Linux in the City of London over the 3 months to 24 June 2017.

Contractor daily rate histogram for Linux in the City of London

Linux
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for Linux in the City of London

For the 6 months to 24 June 2017, IT contractor jobs citing Linux also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for Linux.

1 213 (34.98%) DevOps
2 206 (33.83%) Java
3 201 (33.00%) Python
4 195 (32.02%) Unix
4 195 (32.02%) Finance
5 168 (27.59%) Agile Software Development
6 144 (23.65%) Amazon AWS
7 131 (21.51%) Puppet
8 128 (21.02%) Windows
8 128 (21.02%) SQL
9 115 (18.88%) Banking
9 115 (18.88%) Docker
10 112 (18.39%) Ansible
11 110 (18.06%) Oracle
12 107 (17.57%) Bash Shell
13 98 (16.09%) Jenkins
14 95 (15.60%) Continuous Integration
15 91 (14.94%) Git (software)
16 86 (14.12%) Perl
17 82 (13.46%) Red Hat Enterprise Linux
18 72 (11.82%) Red Hat
19 66 (10.84%) JavaScript
19 66 (10.84%) TDD
19 66 (10.84%) Open Source
19 66 (10.84%) Big Data
20 64 (10.51%) E-Commerce
21 60 (9.85%) Multithreading
22 59 (9.69%) Analytical Skills
22 59 (9.69%) Shell Script
22 59 (9.69%) C++

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 53 (8.70%) Apache
2 46 (7.55%) Tomcat
3 26 (4.27%) Apache Spark
4 24 (3.94%) nginx
5 22 (3.61%) IIS
6 21 (3.45%) Confluence
7 20 (3.28%) JBoss
8 14 (2.30%) Elasticsearch
8 14 (2.30%) OpenStack
9 11 (1.81%) WebLogic
10 8 (1.31%) WebSphere
11 7 (1.15%) Mule
12 5 (0.82%) Apache Pig
12 5 (0.82%) Apache Solr
12 5 (0.82%) Jetty
13 4 (0.66%) Oracle HTTP Server
14 3 (0.49%) MQSeries
14 3 (0.49%) SAS
15 2 (0.33%) Drupal
15 2 (0.33%) LiveCycle
Applications
1 6 (0.99%) Microsoft Excel
2 4 (0.66%) MS Visio
3 3 (0.49%) Microsoft Office
3 3 (0.49%) Spreadsheet
3 3 (0.49%) Stata
4 1 (0.16%) HipChat
4 1 (0.16%) Microsoft Project
Business Applications
1 8 (1.31%) Payment Gateway
2 5 (0.82%) ION MarketView
3 4 (0.66%) Temenos T24
4 2 (0.33%) RMDS
5 1 (0.16%) Actimize
5 1 (0.16%) LatentZero
5 1 (0.16%) Oracle Cash Management
5 1 (0.16%) SAP Hybris
5 1 (0.16%) Sentinel
5 1 (0.16%) thinkFolio
Cloud Services
1 144 (23.65%) Amazon AWS
2 32 (5.25%) Microsoft Azure
3 18 (2.96%) AWS CloudFormation
4 17 (2.79%) Amazon EC2
5 15 (2.46%) GitHub
6 14 (2.30%) Virtual Private Cloud
7 13 (2.13%) Amazon S3
7 13 (2.13%) OpenShift
8 12 (1.97%) Cloud Computing
9 10 (1.64%) IaaS
10 9 (1.48%) Amazon EMR
11 7 (1.15%) PaaS
11 7 (1.15%) SaaS
12 6 (0.99%) Google Cloud Platform
13 5 (0.82%) Amazon CloudWatch
13 5 (0.82%) Office 365
13 5 (0.82%) Slack
14 4 (0.66%) AWS Lambda
15 3 (0.49%) Akamai
15 3 (0.49%) Heroku
Communications & Networking
1 46 (7.55%) TCP/IP
2 43 (7.06%) Firewall
3 28 (4.60%) HTTP
4 25 (4.11%) DNS
5 20 (3.28%) SSL
6 17 (2.79%) SAN
7 13 (2.13%) LDAP
8 10 (1.64%) LAN
9 9 (1.48%) NAS
10 8 (1.31%) Internet
11 7 (1.15%) DHCP
12 6 (0.99%) Kerberos
12 6 (0.99%) WAN
13 5 (0.82%) Multicast
13 5 (0.82%) Network Security
13 5 (0.82%) SMTP
14 4 (0.66%) FTP
15 3 (0.49%) Cisco IOS
15 3 (0.49%) F5 BIG-IP GTM
15 3 (0.49%) Fibre Channel
Database & Business Intelligence
1 66 (10.84%) Big Data
2 54 (8.87%) MySQL
3 44 (7.22%) Hadoop
4 36 (5.91%) SQL Server
5 30 (4.93%) Apache Cassandra
5 30 (4.93%) NoSQL
5 30 (4.93%) Relational Database
6 27 (4.43%) PostgreSQL
7 24 (3.94%) Apache Hive
8 23 (3.78%) KDB
9 22 (3.61%) Oracle Database
10 21 (3.45%) MongoDB
11 16 (2.63%) Kdb+
12 14 (2.30%) HBase
13 13 (2.13%) RDBMS
14 10 (1.64%) Tick Data
15 8 (1.31%) Amazon RDS
16 7 (1.15%) SQL Server Analysis Services
16 7 (1.15%) SQL Server Integration Services
16 7 (1.15%) SQL Server Reporting Services
Development Applications
1 98 (16.09%) Jenkins
2 91 (14.94%) Git (software)
3 40 (6.57%) JIRA
4 31 (5.09%) Cucumber
4 31 (5.09%) TeamCity
5 30 (4.93%) Maven
6 27 (4.43%) JUnit
7 22 (3.61%) Subversion
8 14 (2.30%) Gradle
8 14 (2.30%) Selenium
9 10 (1.64%) Atlassian Bamboo
10 9 (1.48%) Sonatype Nexus
11 8 (1.31%) Jasmine
11 8 (1.31%) Mockito
11 8 (1.31%) Vagrant
12 7 (1.15%) EasyMock
13 6 (0.99%) GitLab
13 6 (0.99%) Mercurial
13 6 (0.99%) Team Foundation Server
14 5 (0.82%) Bitbucket
General
1 195 (32.02%) Finance
2 115 (18.88%) Banking
3 46 (7.55%) Investment Banking
4 40 (6.57%) Front Office
5 14 (2.30%) Financial Institution
6 12 (1.97%) Retail
7 11 (1.81%) Telecoms
8 8 (1.31%) Retail Banking
9 7 (1.15%) Marketing
10 5 (0.82%) Advertising
10 5 (0.82%) Back Office
11 3 (0.49%) Digital Economy
11 3 (0.49%) Games
11 3 (0.49%) International Banking
11 3 (0.49%) Publishing
12 2 (0.33%) German Language
12 2 (0.33%) Private Banking
13 1 (0.16%) Billing
13 1 (0.16%) Law
13 1 (0.16%) Legal
Job Titles
1 225 (36.95%) Developer
2 144 (23.65%) DevOps Engineer
3 105 (17.24%) Java Developer
4 61 (10.02%) Senior Developer
5 47 (7.72%) Linux Engineer
6 46 (7.55%) AWS DevOps
7 45 (7.39%) Senior Java Developer
8 44 (7.22%) AWS Engineer
9 38 (6.24%) Analyst
10 35 (5.75%) Administrator
11 32 (5.25%) C++ Developer
12 31 (5.09%) AWS DevOps Engineer
13 26 (4.27%) Architect
13 26 (4.27%) DevOps Developer
13 26 (4.27%) Senior DevOps
14 24 (3.94%) Linux/Unix DevOps
15 22 (3.61%) AWS Developer
16 19 (3.12%) Java Engineer
17 16 (2.63%) Consultant
17 16 (2.63%) Electronic Trading Developer
Libraries, Frameworks & Software Standards
1 49 (8.05%) HTML
2 43 (7.06%) CSS
3 42 (6.90%) Web Services
4 36 (5.91%) XML
5 33 (5.42%) Spring
6 30 (4.93%) REST
7 29 (4.76%) Middleware
8 27 (4.43%) .NET
8 27 (4.43%) SOAP
9 26 (4.27%) Kafka
10 25 (4.11%) RESTful
11 21 (3.45%) FIX Protocol
11 21 (3.45%) LAMP
12 20 (3.28%) JSON
13 18 (2.96%) Node.js
14 17 (2.79%) AngularJS
14 17 (2.79%) LEMP Stack
15 15 (2.46%) TIBCO EMS
16 14 (2.30%) JMS
16 14 (2.30%) jQuery
Miscellaneous
1 59 (9.69%) Analytical Skills
2 39 (6.40%) Fintech
3 31 (5.09%) Equities
3 31 (5.09%) Foreign Exchange (FX)
4 28 (4.60%) Greenfield Project
5 22 (3.61%) Computer Science
6 20 (3.28%) Data Structures
6 20 (3.28%) Derivative
7 19 (3.12%) NHS
8 17 (2.79%) Algorithms
8 17 (2.79%) Client/Server
9 16 (2.63%) Data Centre
9 16 (2.63%) Fixed Income
10 15 (2.46%) Clustering
11 14 (2.30%) User Experience
12 13 (2.13%) TWAP
12 13 (2.13%) VWAP
13 11 (1.81%) Enterprise Software
13 11 (1.81%) Equity Derivative
14 10 (1.64%) Linux Command Line
Operating Systems
1 195 (32.02%) Unix
2 128 (21.02%) Windows
3 82 (13.46%) Red Hat Enterprise Linux
4 47 (7.72%) Solaris
5 44 (7.22%) CentOS
6 29 (4.76%) Windows Server
7 23 (3.78%) Ubuntu
8 14 (2.30%) AIX
9 5 (0.82%) Android
9 5 (0.82%) CoreOS
9 5 (0.82%) Mac OS
9 5 (0.82%) Mac OS X
10 4 (0.66%) Apple iOS
10 4 (0.66%) Oracle Linux
10 4 (0.66%) Windows Server 2008
11 3 (0.49%) SUSE
11 3 (0.49%) SUSE Linux Enterprise Server
11 3 (0.49%) Windows Server 2012
12 2 (0.33%) Data ONTAP
12 2 (0.33%) Fedora
Processes & Methodologies
1 213 (34.98%) DevOps
2 168 (27.59%) Agile Software Development
3 95 (15.60%) Continuous Integration
4 66 (10.84%) Open Source
4 66 (10.84%) TDD
5 64 (10.51%) E-Commerce
6 60 (9.85%) Multithreading
7 55 (9.03%) Configuration Management
8 53 (8.70%) Test Automation
9 51 (8.37%) Continuous Delivery
10 49 (8.05%) Software Engineering
11 48 (7.88%) Low Latency
11 48 (7.88%) OO
12 45 (7.39%) Microservices
13 43 (7.06%) Analytics
14 30 (4.93%) Electronic Trading
14 30 (4.93%) SDLC
15 28 (4.60%) High Availability
16 27 (4.43%) Migration
17 25 (4.11%) Data Analysis
Programming Languages
1 206 (33.83%) Java
2 201 (33.00%) Python
3 128 (21.02%) SQL
4 107 (17.57%) Bash Shell
5 86 (14.12%) Perl
6 66 (10.84%) JavaScript
7 59 (9.69%) C++
7 59 (9.69%) Shell Script
8 54 (8.87%) Ruby
9 36 (5.91%) C#
10 32 (5.25%) PL/SQL
11 29 (4.76%) PowerShell
12 26 (4.27%) PHP
13 22 (3.61%) C
14 12 (1.97%) Groovy
14 12 (1.97%) R
14 12 (1.97%) T-SQL
15 11 (1.81%) Go
16 10 (1.64%) Korn
17 7 (1.15%) Scala
Qualifications
1 26 (4.27%) Security Cleared
2 23 (3.78%) Degree
3 17 (2.79%) SC Cleared
4 13 (2.13%) Computer Science Degree
5 6 (0.99%) AWS Certification
5 6 (0.99%) RHCE
6 5 (0.82%) RHCA
7 4 (0.66%) Cisco Certification
7 4 (0.66%) CISSP
7 4 (0.66%) DV Cleared
8 3 (0.49%) CCNP
8 3 (0.49%) CEH
8 3 (0.49%) Microsoft Certification
9 2 (0.33%) BPSS Clearance
9 2 (0.33%) CCNA
9 2 (0.33%) CFA
9 2 (0.33%) CREST Certified
9 2 (0.33%) ITIL Certification
9 2 (0.33%) MCP
9 2 (0.33%) OCPJP
Quality Assurance & Compliance
1 24 (3.94%) QA
2 11 (1.81%) MiFID
3 6 (0.99%) PCI DSS
4 4 (0.66%) SEPA
5 3 (0.49%) SLA
6 2 (0.33%) Data Quality
6 2 (0.33%) Disclosure Scotland
6 2 (0.33%) ISO/IEC 27001
7 1 (0.16%) COBIT
7 1 (0.16%) COSO
7 1 (0.16%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
7 1 (0.16%) Sarbanes-Oxley
System Software
1 115 (18.88%) Docker
2 22 (3.61%) VMware Infrastructure
3 20 (3.28%) Active Directory
4 12 (1.97%) HDFS
5 6 (0.99%) Apache ZooKeeper
5 6 (0.99%) Hyper-V
5 6 (0.99%) Oracle RAC
5 6 (0.99%) vCloud
6 5 (0.82%) LXC
6 5 (0.82%) Virtual Machines
6 5 (0.82%) vSphere
7 3 (0.49%) NFS
7 3 (0.49%) Shibboleth
7 3 (0.49%) VMware ESXi
8 2 (0.33%) Corosync
9 1 (0.16%) etcd
9 1 (0.16%) GFS2
9 1 (0.16%) GlusterFS
9 1 (0.16%) GPFS
9 1 (0.16%) OCFS2
Systems Management
1 131 (21.51%) Puppet
2 112 (18.39%) Ansible
3 58 (9.52%) Kubernetes
4 57 (9.36%) Opscode Chef
5 38 (6.24%) Terraform
6 18 (2.96%) Docker Swarm
7 14 (2.30%) Grafana
7 14 (2.30%) Kibana
8 13 (2.13%) Nagios
8 13 (2.13%) Rancher
9 11 (1.81%) Prometheus
10 8 (1.31%) Control-M
11 6 (0.99%) Graphite
11 6 (0.99%) Mesos
11 6 (0.99%) Packer
12 5 (0.82%) Hadoop YARN
12 5 (0.82%) logstash
12 5 (0.82%) NetBackup
12 5 (0.82%) Salt
13 4 (0.66%) ZABBIX
Vendors
1 110 (18.06%) Oracle
2 72 (11.82%) Red Hat
3 55 (9.03%) VMware
4 29 (4.76%) Splunk
5 25 (4.11%) TIBCO
6 24 (3.94%) Microsoft
7 22 (3.61%) IBM
8 19 (3.12%) Google
9 18 (2.96%) Atlassian
9 18 (2.96%) Cisco
9 18 (2.96%) Sybase
10 11 (1.81%) NetApp
11 9 (1.48%) Hortonworks
12 8 (1.31%) EMC
12 8 (1.31%) New Relic
12 8 (1.31%) SaltStack
13 7 (1.15%) HP
13 7 (1.15%) WorldPay
14 6 (0.99%) Citrix
14 6 (0.99%) Murex
City, London
Canary Wharf and City
Rate: £600 per day
Posted: 22 hours ago
City, London
PBIT Consultants
Rate: From £450 to £500 per day
Posted: 22 hours ago
City, London
Crimson Ltd
Rate: £550 - £600 per day
Posted: 18 hours ago
City, London
Digital Gurus
Rate: £450 - £500 per day
Posted: 2 days ago
City, London
onezeero.
Rate: £450 - £500 per day + benefits
Posted: 2 days ago
City, London
Linux Recruit
Rate: £500 - £550 per day
Posted: 4 days ago
City, London
Salt
Rate: £400.00 - £500.00 per day
Posted: 4 days ago
City, London
TEKsystems
Rate: £575 - £600 per day
Posted: 4 days ago