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 3 months to 28 June 2017 with a comparison to the same period in the previous 2 years.

Linux
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 17 18 33
Rank change year-on-year +1 +15  
Permanent jobs citing Linux 103 96 75
As % of all permanent IT jobs advertised in Essex 10.89% 9.54% 6.10%
As % of the Operating Systems category 40.87% 40.51% 30.99%
Number of salaries quoted 94 73 39
Median salary £40,000 £45,000 £37,500
Median salary % change year-on-year -11.11% +20.00%  
90% offered a salary of more than £30,000 £26,500 £23,700
10% offered a salary of more than £52,500 £72,200 £55,000
UK excluding London median salary £42,500 £42,500 £42,500

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 Essex with a requirement for operating system skills.

Operating System Skills
Essex
Permanent job vacancies with a requirement for operating system skills 252 237 242
As % of all permanent IT job vacancies advertised in Essex 26.64% 23.56% 19.67%
Number of salaries quoted 212 193 143
Median salary £35,614 £42,500 £37,500
Median salary % change year-on-year -16.20% +13.33%  
90% offered a salary of more than £27,500 £20,500 £23,500
10% offered a salary of more than £54,000 £55,000 £60,000
UK excluding London median salary £37,500 £37,500 £37,500

Linux
Job Vacancy Trend in Essex

The job posting trend of jobs advertised in Essex 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 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 3 months to 28 June 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 3 months to 28 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Colchester -2 31 £50,000 +11.11% 1
Saffron Walden -2 19 £40,000 -13.51%
Chelmsford -18 8 £33,000 +69.23%
Southend-on-Sea +20 3 £28,000 -63.47%
Braintree - 3 £42,500 -
Brentwood -9 1 - - 1
Linux
East of England

For the 6 months to 28 June 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.

1 108 (48.87%) Oracle
2 94 (42.53%) SQL
3 73 (33.03%) Windows
4 72 (32.58%) PL/SQL
5 68 (30.77%) Unix
5 68 (30.77%) Relational Database
6 60 (27.15%) Oracle Database
7 58 (26.24%) VMware
8 54 (24.43%) Degree
8 54 (24.43%) Perl
9 53 (23.98%) RDBMS
10 49 (22.17%) Performance Tuning
11 48 (21.72%) Active Directory
12 46 (20.81%) Java
12 46 (20.81%) Python
13 44 (19.91%) Red Hat
14 42 (19.00%) VMware Infrastructure
15 41 (18.55%) Windows Server
15 41 (18.55%) ETL
16 39 (17.65%) Shell Script
17 36 (16.29%) SQL Server
18 35 (15.84%) Agile Software Development
19 32 (14.48%) JavaScript
19 32 (14.48%) MySQL
20 30 (13.57%) Business Intelligence
20 30 (13.57%) Red Hat Enterprise Linux
20 30 (13.57%) Oracle Database 11g
20 30 (13.57%) Oracle Database 12c
21 29 (13.12%) Microsoft
21 29 (13.12%) Computer Science

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 27 (12.22%) JBoss
2 25 (11.31%) Apache
3 13 (5.88%) Apache Spark
4 12 (5.43%) GlassFish
4 12 (5.43%) Tomcat
4 12 (5.43%) WebSphere
5 10 (4.52%) IIS
6 9 (4.07%) Documentum
6 9 (4.07%) MS Exchange
7 5 (2.26%) Apache Geronimo
7 5 (2.26%) nginx
8 3 (1.36%) Apache Pig
9 2 (0.90%) Exchange Server 2007
9 2 (0.90%) Exchange Server 2010
10 1 (0.45%) OpenStack
10 1 (0.45%) Zimbra
Applications
1 9 (4.07%) Microsoft Office
2 3 (1.36%) Weka
Cloud Services
1 28 (12.67%) Office 365
2 21 (9.50%) Amazon AWS
3 14 (6.33%) Microsoft Azure
4 11 (4.98%) GitHub
5 3 (1.36%) Azure Active Directory
Communications & Networking
1 19 (8.60%) Firewall
2 16 (7.24%) NAS
3 14 (6.33%) LDAP
4 12 (5.43%) SAN
5 11 (4.98%) TCP/IP
6 10 (4.52%) DHCP
7 9 (4.07%) Kerberos
8 6 (2.71%) Cisco ASA
8 6 (2.71%) VoIP
8 6 (2.71%) Wireless
9 5 (2.26%) Internet
9 5 (2.26%) VLAN
10 4 (1.81%) BGP
10 4 (1.81%) BIG-IP
10 4 (1.81%) Cisco IOS
10 4 (1.81%) DMVPN
10 4 (1.81%) DNS
10 4 (1.81%) NetScreen
10 4 (1.81%) Network Security
10 4 (1.81%) OSPF
Database & Business Intelligence
1 68 (30.77%) Relational Database
2 60 (27.15%) Oracle Database
3 53 (23.98%) RDBMS
4 36 (16.29%) SQL Server
5 32 (14.48%) MySQL
6 30 (13.57%) Oracle Database 11g
6 30 (13.57%) Oracle Database 12c
7 27 (12.22%) Data Warehouse
7 27 (12.22%) MongoDB
8 21 (9.50%) CouchDB
9 19 (8.60%) NoSQL
10 18 (8.14%) SQL Server 2012
10 18 (8.14%) SQL Server 2014
11 17 (7.69%) Hadoop
12 13 (5.88%) PostgreSQL
13 11 (4.98%) Big Data
13 11 (4.98%) Neo4j
14 7 (3.17%) Oracle Database 10g
15 6 (2.71%) SQL Server 2000
15 6 (2.71%) SQL Server Reporting Services
Development Applications
1 19 (8.60%) Git (software)
2 7 (3.17%) Visual Studio
3 6 (2.71%) Octopus Deploy
3 6 (2.71%) Subversion
3 6 (2.71%) Team Foundation Server
3 6 (2.71%) TeamCity
4 3 (1.36%) Ant
4 3 (1.36%) Gradle
4 3 (1.36%) jMock
4 3 (1.36%) JUnit
4 3 (1.36%) Maven
4 3 (1.36%) Mockito
5 1 (0.45%) Eclipse
5 1 (0.45%) JIRA
5 1 (0.45%) NetBeans
General
1 7 (3.17%) Finance
2 6 (2.71%) Automotive
3 5 (2.26%) Electronics
4 3 (1.36%) Advertising
5 1 (0.45%) Aerospace
5 1 (0.45%) Back Office
5 1 (0.45%) Games
Job Titles
1 97 (43.89%) Developer
2 43 (19.46%) Oracle Developer
3 39 (17.65%) Administrator
4 37 (16.74%) Database Developer
5 36 (16.29%) Oracle Database Developer
6 23 (10.41%) SQL Database Developer
6 23 (10.41%) SQL Developer
7 21 (9.50%) DBA
7 21 (9.50%) ETL Developer
7 21 (9.50%) Infrastructure Engineer
7 21 (9.50%) Java Developer
7 21 (9.50%) Oracle ETL Developer
8 20 (9.05%) Linux Engineer
9 19 (8.60%) Storage Engineer
10 18 (8.14%) Senior Developer
10 18 (8.14%) Systems Administrator
11 17 (7.69%) PL/SQL Developer
11 17 (7.69%) VMware Engineer
12 16 (7.24%) Oracle DBA
12 16 (7.24%) Software Developer
Libraries, Frameworks & Software Standards
1 19 (8.60%) Web Services
2 18 (8.14%) CSS
2 18 (8.14%) HTML
3 15 (6.79%) Spring
3 15 (6.79%) Spring MVC
4 12 (5.43%) EJB
4 12 (5.43%) JSP
4 12 (5.43%) Servlets
5 11 (4.98%) Java EE
5 11 (4.98%) JMS
5 11 (4.98%) Moose
5 11 (4.98%) Node.js
5 11 (4.98%) REST
6 10 (4.52%) CPAN
6 10 (4.52%) DBIx::Class
6 10 (4.52%) Express
6 10 (4.52%) SOAP
7 9 (4.07%) Ajax
8 8 (3.62%) jQuery
8 8 (3.62%) Swing
Miscellaneous
1 29 (13.12%) Computer Science
2 17 (7.69%) N-Tier
3 10 (4.52%) Linux Command Line
4 9 (4.07%) Fat Client
4 9 (4.07%) Thin Client
5 6 (2.71%) Analytical Skills
5 6 (2.71%) Data Centre
5 6 (2.71%) Data Protection Act
6 5 (2.26%) Enterprise Software
7 3 (1.36%) Device Driver
8 2 (0.90%) Algorithms
8 2 (0.90%) Clustering
9 1 (0.45%) e-Health
9 1 (0.45%) Embedded Systems
9 1 (0.45%) Grid Computing
9 1 (0.45%) iPad
9 1 (0.45%) Smart Home
Operating Systems
1 73 (33.03%) Windows
2 68 (30.77%) Unix
3 41 (18.55%) Windows Server
4 30 (13.57%) Red Hat Enterprise Linux
5 16 (7.24%) Windows Server 2012
6 15 (6.79%) Windows Server 2008
7 10 (4.52%) VMS
8 6 (2.71%) Mac OS
8 6 (2.71%) Mac OS X
8 6 (2.71%) Mac OS X Server
8 6 (2.71%) Ubuntu
9 5 (2.26%) CentOS
10 3 (1.36%) SUSE
10 3 (1.36%) VxWorks
10 3 (1.36%) Windows 10
11 2 (0.90%) AIX
11 2 (0.90%) SUSE Linux Enterprise Server
11 2 (0.90%) Windows 7
12 1 (0.45%) Windows XP
Processes & Methodologies
1 49 (22.17%) Performance Tuning
2 41 (18.55%) ETL
3 35 (15.84%) Agile Software Development
4 30 (13.57%) Business Intelligence
5 23 (10.41%) Bioinformatics
6 21 (9.50%) ITIL
7 20 (9.05%) Visualisation
8 19 (8.60%) Configuration Management
8 19 (8.60%) Disaster Recovery
8 19 (8.60%) High Availability
9 18 (8.14%) Web Development
10 17 (7.69%) Informatics
10 17 (7.69%) MVC
11 14 (6.33%) Capacity Management
11 14 (6.33%) Test Automation
12 12 (5.43%) DevOps
13 11 (4.98%) Mentoring
14 10 (4.52%) Continuous Integration
14 10 (4.52%) Data Management
15 9 (4.07%) Service Delivery
Programming Languages
1 94 (42.53%) SQL
2 72 (32.58%) PL/SQL
3 54 (24.43%) Perl
4 46 (20.81%) Java
4 46 (20.81%) Python
5 39 (17.65%) Shell Script
6 32 (14.48%) JavaScript
7 15 (6.79%) C#
8 13 (5.88%) T-SQL
9 12 (5.43%) C++
10 11 (4.98%) C
11 10 (4.52%) Bash Shell
12 7 (3.17%) PHP
13 6 (2.71%) PowerShell
13 6 (2.71%) R
14 3 (1.36%) Embedded C
15 2 (0.90%) Ruby
16 1 (0.45%) COBOL
16 1 (0.45%) Go
16 1 (0.45%) Haskell
Qualifications
1 54 (24.43%) Degree
2 21 (9.50%) Computer Science Degree
3 18 (8.14%) OCP
3 18 (8.14%) Oracle Certification
4 10 (4.52%) Postgraduate
5 8 (3.62%) Cisco Certification
6 6 (2.71%) CCNP
6 6 (2.71%) MCITP
6 6 (2.71%) MCTS
6 6 (2.71%) Microsoft Certification
6 6 (2.71%) PhD
7 5 (2.26%) DBS Check
8 4 (1.81%) CCNA
8 4 (1.81%) CCSE
9 2 (0.90%) CCIE
9 2 (0.90%) CCIE Service Provider
9 2 (0.90%) CCSP
9 2 (0.90%) VMware Certified Professional (VCP)
10 1 (0.45%) CISSP
10 1 (0.45%) GSEC
Quality Assurance & Compliance
1 6 (2.71%) GDPR
1 6 (2.71%) PCI DSS
2 1 (0.45%) ISO/IEC 27001
System Software
1 48 (21.72%) Active Directory
2 42 (19.00%) VMware Infrastructure
3 28 (12.67%) vSphere
4 14 (6.33%) Virtual Machines
5 12 (5.43%) Hyper-V
6 11 (4.98%) LXC
7 3 (1.36%) HDFS
8 2 (0.90%) Xen
9 1 (0.45%) Docker
9 1 (0.45%) KVM
9 1 (0.45%) Oracle RAC
9 1 (0.45%) Slurm Workload Manager
Systems Management
1 13 (5.88%) Data Guard
1 13 (5.88%) Opscode Chef
1 13 (5.88%) Oracle RMAN
2 11 (4.98%) SCCM
3 8 (3.62%) Nagios
4 5 (2.26%) Ansible
4 5 (2.26%) CFEngine
4 5 (2.26%) NetBackup
4 5 (2.26%) Puppet
4 5 (2.26%) SCOM
4 5 (2.26%) ZABBIX
5 3 (1.36%) Jamf Pro
6 1 (0.45%) Enterprise Manager Cloud Control
6 1 (0.45%) Mesos
6 1 (0.45%) NetVault Backup
6 1 (0.45%) Oracle Enterprise Manager
6 1 (0.45%) Oracle Flashback
Vendors
1 108 (48.87%) Oracle
2 58 (26.24%) VMware
3 44 (19.91%) Red Hat
4 29 (13.12%) Microsoft
5 26 (11.76%) NetApp
6 11 (4.98%) Apple
7 10 (4.52%) Cisco
8 9 (4.07%) Citrix
9 8 (3.62%) Hortonworks
10 6 (2.71%) F5
11 5 (2.26%) Symantec
12 4 (1.81%) Blue Coat
12 4 (1.81%) CheckPoint
12 4 (1.81%) Imperva
12 4 (1.81%) Infoblox
13 3 (1.36%) Alteryx
13 3 (1.36%) Sybase
13 3 (1.36%) Tableau
14 2 (0.90%) Dell
14 2 (0.90%) SonicWALL
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