Period
to 21 October 2017

The following table provides summary statistics for permanent job vacancies advertised in Essex 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 21 October 2017 with a comparison to the same period in the previous 2 years.

Linux
6 months to
21 Oct 2017
Same period 2016 Same period 2015
Rank 26 27 32
Rank change year-on-year +1 +5 -11
Permanent jobs citing Linux 117 146 149
As % of all permanent IT jobs advertised in Essex 7.83% 6.87% 5.79%
As % of the Operating Systems category 33.14% 31.33% 27.19%
Number of salaries quoted 103 108 101
Essex median annual salary £40,000 £45,000 £45,000
Median salary % change year-on-year -11.11% - +5.88%
10th Percentile £30,480 £25,750 £24,000
90th Percentile £53,750 £64,328 £57,500
East of England median annual salary £47,500 £45,000 £45,000
% change year-on-year +5.56% - +2.27%

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 Essex with a requirement for operating system skills.

All Operating Systems
Essex
Permanent vacancies with a requirement for operating system skills 353 466 548
As % of all permanent IT jobs advertised in Essex 23.63% 21.92% 21.28%
Number of salaries quoted 306 366 383
Essex median annual salary £40,000 £47,500 £37,500
Median salary % change year-on-year -15.79% +26.67% -11.76%
10th Percentile £19,625 £24,000 £21,750
90th Percentile £57,500 £70,000 £53,750
East of England median annual salary £42,500 £42,500 £41,500
% change year-on-year - +2.41% +3.75%

Linux
Job Vacancy Trend in Essex

Job postings citing Linux as a percentage of all IT jobs advertised in Essex.

Job vacancy trend for Linux in Essex

Linux
Salary Trend in Essex

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

Salary trend for Linux in Essex

Linux
Salary Histogram in Essex

The salary distribution of IT jobs citing Linux in Essex over the 6 months to 21 October 2017.

Salary histogram for Linux in Essex

Linux
Job Locations in Essex

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Linux within the Essex region over the 6 months to 21 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
Colchester -2 38 £50,000 +11.11%
Saffron Walden 0 18 £40,000 -11.11%
Chelmsford -9 12 £33,000 +38.95% 1
Southend-on-Sea +19 4 £29,609 -48.68% 2
Brentwood +7 3 - -
Harlow -5 2 £46,000 -12.38%
Rochford - 1 - -
Witham - 1 - -
Linux
East of England

For the 6 months to 21 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 Essex region with a requirement for Linux.

1 56 (47.86%) SQL
2 50 (42.74%) Oracle
3 45 (38.46%) Unix
4 32 (27.35%) Windows
4 32 (27.35%) Oracle Database
5 31 (26.50%) PL/SQL
6 30 (25.64%) SQL Server
6 30 (25.64%) Performance Tuning
7 29 (24.79%) Perl
8 27 (23.08%) Java
9 25 (21.37%) VMware
10 24 (20.51%) Agile Software Development
11 23 (19.66%) ITIL
11 23 (19.66%) Relational Database
11 23 (19.66%) SQL Server 2014
12 22 (18.80%) Python
12 22 (18.80%) RDBMS
13 21 (17.95%) Active Directory
13 21 (17.95%) Disaster Recovery
13 21 (17.95%) SQL Server 2012
13 21 (17.95%) High Availability
14 20 (17.09%) Windows Server
14 20 (17.09%) Microsoft
14 20 (17.09%) VMware Infrastructure
15 19 (16.24%) Shell Script
16 18 (15.38%) Degree
16 18 (15.38%) DevOps
17 16 (13.68%) Oracle RMAN
17 16 (13.68%) Oracle Database 11g
17 16 (13.68%) Data Guard

Linux
Co-occurring IT Skills in Essex 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 16 (13.68%) IIS
2 11 (9.40%) JBoss
3 4 (3.42%) WordPress
4 3 (2.56%) Apache
5 1 (0.85%) CMS
5 1 (0.85%) Exchange Server 2007
5 1 (0.85%) Exchange Server 2010
5 1 (0.85%) Joomla!
5 1 (0.85%) MS Exchange
5 1 (0.85%) Zimbra
Applications
1 2 (1.71%) Microsoft Excel
1 2 (1.71%) Microsoft Office
1 2 (1.71%) MS Visio
Cloud Services
1 16 (13.68%) Office 365
2 11 (9.40%) Amazon AWS
3 7 (5.98%) Microsoft Azure
4 2 (1.71%) Azure Active Directory
4 2 (1.71%) Cloud Computing
5 1 (0.85%) Asana
5 1 (0.85%) GitHub
Communications & Networking
1 14 (11.97%) NAS
2 13 (11.11%) Firewall
3 12 (10.26%) SAN
4 5 (4.27%) TCP/IP
5 3 (2.56%) Cisco ASA
5 3 (2.56%) HTTP
5 3 (2.56%) SSL
6 2 (1.71%) DHCP
6 2 (1.71%) Internet
6 2 (1.71%) SMS
6 2 (1.71%) VoIP
7 1 (0.85%) DNS
7 1 (0.85%) IPsec
7 1 (0.85%) PBX
7 1 (0.85%) Reverse Proxy
7 1 (0.85%) Softphone
7 1 (0.85%) VLAN
7 1 (0.85%) VPN
7 1 (0.85%) Wi-Fi
7 1 (0.85%) Wireless
Database & Business Intelligence
1 32 (27.35%) Oracle Database
2 30 (25.64%) SQL Server
3 23 (19.66%) Relational Database
3 23 (19.66%) SQL Server 2014
4 22 (18.80%) RDBMS
5 21 (17.95%) SQL Server 2012
6 16 (13.68%) Oracle Database 11g
6 16 (13.68%) Oracle Database 12c
7 13 (11.11%) Data Warehouse
8 11 (9.40%) MySQL
9 10 (8.55%) SQL Server Reporting Services
10 9 (7.69%) MongoDB
10 9 (7.69%) SQL Server 2008
10 9 (7.69%) SQL Server Analysis Services
11 8 (6.84%) Hadoop
12 7 (5.98%) SQL Server Integration Services
13 6 (5.13%) NoSQL
13 6 (5.13%) SQL Server 2000
13 6 (5.13%) SQL Server 2005
14 2 (1.71%) Redis
Development Applications
1 7 (5.98%) Octopus Deploy
2 6 (5.13%) Team Foundation Server
2 6 (5.13%) TeamCity
2 6 (5.13%) Visual Studio
3 3 (2.56%) Jenkins
3 3 (2.56%) jMock
3 3 (2.56%) JUnit
3 3 (2.56%) Mockito
3 3 (2.56%) Subversion
4 2 (1.71%) Git (software)
4 2 (1.71%) JIRA
General
1 8 (6.84%) Finance
2 5 (4.27%) Electronics
3 4 (3.42%) Advertising
4 1 (0.85%) Automotive
4 1 (0.85%) Games
4 1 (0.85%) Marketing
4 1 (0.85%) Telecoms
Job Titles
1 37 (31.62%) Developer
2 25 (21.37%) Administrator
3 23 (19.66%) DBA
4 17 (14.53%) Oracle DBA
5 15 (12.82%) Database Developer
6 14 (11.97%) Oracle Database Developer
6 14 (11.97%) Oracle Developer
7 13 (11.11%) Data Warehouse Developer
7 13 (11.11%) ETL Developer
7 13 (11.11%) Oracle Data Warehouse Developer
7 13 (11.11%) Oracle ETL Developer
7 13 (11.11%) PL/SQL Developer
7 13 (11.11%) SQL Database Developer
7 13 (11.11%) SQL Developer
8 10 (8.55%) Infrastructure Engineer
9 9 (7.69%) Linux Engineer
10 8 (6.84%) 3rd Line Support
11 7 (5.98%) Python Developer
11 7 (5.98%) Support Engineer
12 6 (5.13%) Storage Engineer
Libraries, Frameworks & Software Standards
1 9 (7.69%) .NET
1 9 (7.69%) Web Services
2 6 (5.13%) ASP.NET
2 6 (5.13%) HTML
2 6 (5.13%) Node.js
3 4 (3.42%) Hibernate
3 4 (3.42%) J2EE
3 4 (3.42%) JPA
3 4 (3.42%) Middleware
3 4 (3.42%) Spring
3 4 (3.42%) Struts
4 3 (2.56%) .NET Framework
4 3 (2.56%) CakePHP
4 3 (2.56%) CSS
4 3 (2.56%) Spring MVC
5 2 (1.71%) AngularJS
5 2 (1.71%) JSON
5 2 (1.71%) LAMP
5 2 (1.71%) SOAP
5 2 (1.71%) XML
Miscellaneous
1 10 (8.55%) Computer Science
2 6 (5.13%) Data Protection Act
3 4 (3.42%) Device Driver
4 3 (2.56%) Linux Command Line
4 3 (2.56%) Management Information System
5 2 (1.71%) CMDB
5 2 (1.71%) Private Cloud
6 1 (0.85%) Analytical Skills
6 1 (0.85%) Clustering
6 1 (0.85%) Digital Media
6 1 (0.85%) N-Tier
6 1 (0.85%) Smart Home
Operating Systems
1 45 (38.46%) Unix
2 32 (27.35%) Windows
3 20 (17.09%) Windows Server
4 15 (12.82%) Red Hat Enterprise Linux
5 10 (8.55%) Windows Server 2012
6 7 (5.98%) Windows Server 2008
7 4 (3.42%) CentOS
7 4 (3.42%) VxWorks
7 4 (3.42%) Windows 10
8 2 (1.71%) AIX
8 2 (1.71%) Mac OS
8 2 (1.71%) Mac OS X
8 2 (1.71%) Mac OS X Server
8 2 (1.71%) Ubuntu
8 2 (1.71%) Windows 7
8 2 (1.71%) Windows XP
9 1 (0.85%) Debian
9 1 (0.85%) SUSE
9 1 (0.85%) SUSE Linux Enterprise Server
9 1 (0.85%) VyOS
Processes & Methodologies
1 30 (25.64%) Performance Tuning
2 24 (20.51%) Agile Software Development
3 23 (19.66%) ITIL
4 21 (17.95%) Disaster Recovery
4 21 (17.95%) High Availability
5 18 (15.38%) DevOps
6 14 (11.97%) ETL
7 11 (9.40%) Mentoring
8 8 (6.84%) SDLC
8 8 (6.84%) Web Development
9 7 (5.98%) Bioinformatics
9 7 (5.98%) Information Security
9 7 (5.98%) Security Management
9 7 (5.98%) Waterfall
10 6 (5.13%) Business Intelligence
10 6 (5.13%) Data Protection
10 6 (5.13%) Document Composition
10 6 (5.13%) Information Security Management
10 6 (5.13%) ISMS
10 6 (5.13%) MVC
Programming Languages
1 56 (47.86%) SQL
2 31 (26.50%) PL/SQL
3 29 (24.79%) Perl
4 27 (23.08%) Java
5 22 (18.80%) Python
6 19 (16.24%) Shell Script
7 16 (13.68%) C#
8 9 (7.69%) C
8 9 (7.69%) JavaScript
9 8 (6.84%) C++
9 8 (6.84%) PHP
10 6 (5.13%) PowerShell
11 5 (4.27%) R
12 4 (3.42%) Embedded C
13 3 (2.56%) Bash Shell
14 2 (1.71%) Scala
15 1 (0.85%) COBOL
15 1 (0.85%) Ruby
15 1 (0.85%) T-SQL
Qualifications
1 18 (15.38%) Degree
2 15 (12.82%) OCP
2 15 (12.82%) Oracle Certification
3 7 (5.98%) Microsoft Certification
4 6 (5.13%) MCITP
4 6 (5.13%) MCTS
5 5 (4.27%) PhD
6 4 (3.42%) CCNA
6 4 (3.42%) Cisco Certification
7 3 (2.56%) Security Cleared
7 3 (2.56%) VMware Certified Professional (VCP)
8 2 (1.71%) SC Cleared
9 1 (0.85%) CCIE
9 1 (0.85%) CCIE Service Provider
9 1 (0.85%) CCNP
9 1 (0.85%) CCSP
9 1 (0.85%) CISM
9 1 (0.85%) CISSP
9 1 (0.85%) Computer Science Degree
9 1 (0.85%) SANS
Quality Assurance & Compliance
1 6 (5.13%) GDPR
1 6 (5.13%) PCI DSS
2 3 (2.56%) SLA
System Software
1 21 (17.95%) Active Directory
2 20 (17.09%) VMware Infrastructure
3 13 (11.11%) Hyper-V
4 12 (10.26%) vSphere
5 9 (7.69%) Virtual Machines
6 2 (1.71%) KVM
7 1 (0.85%) iptables
7 1 (0.85%) Oracle RAC
7 1 (0.85%) VMware ESXi
7 1 (0.85%) VMware NSX
Systems Management
1 16 (13.68%) Data Guard
1 16 (13.68%) Oracle RMAN
2 10 (8.55%) Opscode Chef
3 5 (4.27%) Ansible
3 5 (4.27%) Nagios
3 5 (4.27%) Puppet
4 2 (1.71%) Jamf Pro
4 2 (1.71%) Terraform
5 1 (0.85%) AirWatch
5 1 (0.85%) Cisco CME
5 1 (0.85%) Cisco CUCM
5 1 (0.85%) Enterprise Manager Cloud Control
5 1 (0.85%) Oracle Enterprise Manager
5 1 (0.85%) Oracle Flashback
5 1 (0.85%) Salt
5 1 (0.85%) Systems Management Server (SMS)
5 1 (0.85%) vRealize
Vendors
1 50 (42.74%) Oracle
2 25 (21.37%) VMware
3 20 (17.09%) Microsoft
4 15 (12.82%) Red Hat
5 12 (10.26%) NetApp
6 6 (5.13%) Cisco
7 4 (3.42%) Apple
8 2 (1.71%) Dell
8 2 (1.71%) Hortonworks
8 2 (1.71%) MKS
8 2 (1.71%) ServiceNow
8 2 (1.71%) Splunk
9 1 (0.85%) Avaya
9 1 (0.85%) F5
9 1 (0.85%) Fortinet
9 1 (0.85%) Intel
9 1 (0.85%) Open-E
9 1 (0.85%) SolarWinds
9 1 (0.85%) SonicWALL
9 1 (0.85%) Veeam