Period
to 23 August 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 23 August 2017 with a comparison to the same period in the previous 2 years.

Linux
6 months to
23 Aug 2017
Same period 2016 Same period 2015
Rank 20 25 30
Rank change year-on-year +5 +5 -7
Permanent jobs citing Linux 179 167 167
As % of all permanent IT jobs advertised in Essex 10.07% 8.27% 6.82%
As % of the Operating Systems category 42.42% 35.84% 31.33%
Number of salaries quoted 162 135 106
Essex median annual salary £42,500 £44,000 £44,500
Median salary % change year-on-year -3.41% -1.12% -1.11%
10th Percentile £28,374 £23,050 £22,000
90th Percentile £57,375 £55,000 £66,250
East of England median annual salary £47,000 £45,000 £44,000
% change year-on-year +4.44% +2.27% +3.53%

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 422 466 533
As % of all permanent IT jobs advertised in Essex 23.75% 23.07% 21.76%
Number of salaries quoted 346 372 354
Essex median annual salary £40,000 £45,000 £40,000
Median salary % change year-on-year -11.11% +12.50% -5.88%
10th Percentile £25,000 £22,500 £21,750
90th Percentile £57,500 £64,875 £60,000
East of England median annual salary £42,500 £42,500 £40,000
% change year-on-year - +6.25% -

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 23 August 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 23 August 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 72 £50,000 +13.64% 1
Saffron Walden +2 25 £40,000 -11.11%
Chelmsford -21 13 £34,500 +76.92%
Southend-on-Sea +25 5 £28,000 -47.42%
Braintree - 3 £42,500 -
Brentwood -11 2 - -
Rochford - 1 - -
Witham - 1 £50,000 -
Linux
East of England

For the 6 months to 23 August 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 77 (43.02%) SQL
2 73 (40.78%) Oracle
3 59 (32.96%) Unix
4 52 (29.05%) PL/SQL
5 51 (28.49%) Relational Database
6 50 (27.93%) Windows
7 49 (27.37%) VMware
8 48 (26.82%) Perl
9 46 (25.70%) Oracle Database
10 42 (23.46%) Java
11 41 (22.91%) Performance Tuning
12 40 (22.35%) Active Directory
13 39 (21.79%) RDBMS
14 38 (21.23%) Python
14 38 (21.23%) VMware Infrastructure
15 34 (18.99%) Degree
16 30 (16.76%) Agile Software Development
16 30 (16.76%) Office 365
17 29 (16.20%) Red Hat Enterprise Linux
17 29 (16.20%) Microsoft
18 28 (15.64%) Shell Script
18 28 (15.64%) Windows Server
19 27 (15.08%) ETL
19 27 (15.08%) SQL Server
20 26 (14.53%) ITIL
20 26 (14.53%) NetApp
20 26 (14.53%) Red Hat
21 24 (13.41%) JavaScript
21 24 (13.41%) vSphere
22 23 (12.85%) MongoDB

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 23 (12.85%) JBoss
2 18 (10.06%) Apache
3 12 (6.70%) IIS
4 11 (6.15%) Apache Spark
5 7 (3.91%) GlassFish
5 7 (3.91%) Tomcat
5 7 (3.91%) WebSphere
6 6 (3.35%) MS Exchange
7 2 (1.12%) Apache Geronimo
7 2 (1.12%) Apache Pig
7 2 (1.12%) Exchange Server 2007
7 2 (1.12%) Exchange Server 2010
8 1 (0.56%) Documentum
8 1 (0.56%) Zimbra
Applications
1 7 (3.91%) Microsoft Office
2 2 (1.12%) Weka
3 1 (0.56%) Microsoft Excel
3 1 (0.56%) MS Visio
Cloud Services
1 30 (16.76%) Office 365
2 20 (11.17%) Amazon AWS
3 15 (8.38%) Microsoft Azure
4 10 (5.59%) GitHub
5 3 (1.68%) Azure Active Directory
6 1 (0.56%) Cloud Computing
Communications & Networking
1 19 (10.61%) NAS
2 18 (10.06%) Firewall
3 13 (7.26%) SAN
4 12 (6.70%) TCP/IP
5 8 (4.47%) DHCP
6 6 (3.35%) VoIP
7 5 (2.79%) VLAN
7 5 (2.79%) Wireless
8 4 (2.23%) Cisco ASA
8 4 (2.23%) Internet
9 3 (1.68%) DNS
9 3 (1.68%) HTTP
9 3 (1.68%) SSL
10 2 (1.12%) BGP
10 2 (1.12%) BIG-IP
10 2 (1.12%) Cisco IOS
10 2 (1.12%) NetScreen
10 2 (1.12%) Network Security
10 2 (1.12%) OSPF
10 2 (1.12%) Unified Communications
Database & Business Intelligence
1 51 (28.49%) Relational Database
2 46 (25.70%) Oracle Database
3 39 (21.79%) RDBMS
4 27 (15.08%) SQL Server
5 23 (12.85%) MongoDB
6 22 (12.29%) Data Warehouse
6 22 (12.29%) Oracle Database 11g
6 22 (12.29%) Oracle Database 12c
7 20 (11.17%) SQL Server 2012
7 20 (11.17%) SQL Server 2014
8 19 (10.61%) MySQL
9 17 (9.50%) NoSQL
10 16 (8.94%) CouchDB
10 16 (8.94%) Hadoop
11 7 (3.91%) Big Data
11 7 (3.91%) Neo4j
11 7 (3.91%) PostgreSQL
11 7 (3.91%) SQL Server 2008
11 7 (3.91%) SQL Server Analysis Services
11 7 (3.91%) SQL Server Reporting Services
Development Applications
1 13 (7.26%) Git (software)
2 7 (3.91%) Visual Studio
3 6 (3.35%) Octopus Deploy
3 6 (3.35%) Team Foundation Server
3 6 (3.35%) TeamCity
4 4 (2.23%) jMock
4 4 (2.23%) JUnit
4 4 (2.23%) Mockito
5 2 (1.12%) Ant
5 2 (1.12%) Gradle
5 2 (1.12%) Jenkins
5 2 (1.12%) Maven
5 2 (1.12%) Subversion
6 1 (0.56%) Eclipse
6 1 (0.56%) JIRA
General
1 8 (4.47%) Finance
2 6 (3.35%) Electronics
3 4 (2.23%) Advertising
4 3 (1.68%) Automotive
5 1 (0.56%) Aerospace
Job Titles
1 73 (40.78%) Developer
2 29 (16.20%) Oracle Developer
3 28 (15.64%) Administrator
4 24 (13.41%) Database Developer
4 24 (13.41%) DBA
5 23 (12.85%) Linux Engineer
5 23 (12.85%) Oracle Database Developer
6 20 (11.17%) PL/SQL Developer
6 20 (11.17%) SQL Database Developer
6 20 (11.17%) SQL Developer
7 18 (10.06%) Data Warehouse Developer
7 18 (10.06%) ETL Developer
7 18 (10.06%) Infrastructure Engineer
7 18 (10.06%) Oracle Data Warehouse Developer
7 18 (10.06%) Oracle DBA
7 18 (10.06%) Oracle ETL Developer
7 18 (10.06%) Storage Engineer
8 17 (9.50%) Java Developer
9 16 (8.94%) Senior Developer
9 16 (8.94%) VMware Engineer
Libraries, Frameworks & Software Standards
1 16 (8.94%) Web Services
2 12 (6.70%) Node.js
3 11 (6.15%) Spring
3 11 (6.15%) Spring MVC
4 10 (5.59%) Moose
5 9 (5.03%) CPAN
5 9 (5.03%) CSS
5 9 (5.03%) DBIx::Class
5 9 (5.03%) Express
5 9 (5.03%) HTML
6 8 (4.47%) REST
6 8 (4.47%) SOAP
7 7 (3.91%) .NET
7 7 (3.91%) EJB
7 7 (3.91%) Java EE
7 7 (3.91%) JMS
7 7 (3.91%) JSP
7 7 (3.91%) Servlets
8 6 (3.35%) Hibernate
8 6 (3.35%) J2EE
Miscellaneous
1 23 (12.85%) Computer Science
2 8 (4.47%) N-Tier
3 6 (3.35%) Data Protection Act
3 6 (3.35%) Linux Command Line
4 4 (2.23%) Device Driver
4 4 (2.23%) Enterprise Software
5 2 (1.12%) Clustering
5 2 (1.12%) Fat Client
5 2 (1.12%) Management Information System
5 2 (1.12%) Thin Client
6 1 (0.56%) Algorithms
6 1 (0.56%) Analytical Skills
6 1 (0.56%) CMDB
6 1 (0.56%) Data Centre
6 1 (0.56%) Embedded Systems
6 1 (0.56%) Smart Home
Operating Systems
1 59 (32.96%) Unix
2 50 (27.93%) Windows
3 29 (16.20%) Red Hat Enterprise Linux
4 28 (15.64%) Windows Server
5 11 (6.15%) Windows Server 2012
6 10 (5.59%) Windows Server 2008
7 9 (5.03%) VMS
8 6 (3.35%) Mac OS
8 6 (3.35%) Mac OS X
8 6 (3.35%) Mac OS X Server
9 5 (2.79%) CentOS
10 4 (2.23%) VxWorks
11 3 (1.68%) Windows 10
12 2 (1.12%) AIX
12 2 (1.12%) SUSE
12 2 (1.12%) SUSE Linux Enterprise Server
12 2 (1.12%) Ubuntu
12 2 (1.12%) Windows XP
13 1 (0.56%) Debian
13 1 (0.56%) Windows 7
Processes & Methodologies
1 41 (22.91%) Performance Tuning
2 30 (16.76%) Agile Software Development
3 27 (15.08%) ETL
4 26 (14.53%) ITIL
5 21 (11.73%) Disaster Recovery
5 21 (11.73%) High Availability
6 17 (9.50%) Business Intelligence
7 16 (8.94%) Bioinformatics
8 15 (8.38%) DevOps
9 14 (7.82%) Visualisation
10 13 (7.26%) Mentoring
10 13 (7.26%) MVC
10 13 (7.26%) Test Automation
11 12 (6.70%) Web Development
12 11 (6.15%) Continuous Integration
13 10 (5.59%) Informatics
14 7 (3.91%) OO
14 7 (3.91%) SDLC
14 7 (3.91%) Security Management
15 6 (3.35%) Document Composition
Programming Languages
1 77 (43.02%) SQL
2 52 (29.05%) PL/SQL
3 48 (26.82%) Perl
4 42 (23.46%) Java
5 38 (21.23%) Python
6 28 (15.64%) Shell Script
7 24 (13.41%) JavaScript
8 17 (9.50%) C#
9 12 (6.70%) C++
10 11 (6.15%) C
11 8 (4.47%) PHP
11 8 (4.47%) T-SQL
12 6 (3.35%) Bash Shell
12 6 (3.35%) PowerShell
13 5 (2.79%) R
14 4 (2.23%) Embedded C
15 1 (0.56%) COBOL
15 1 (0.56%) Ruby
15 1 (0.56%) Scala
Qualifications
1 34 (18.99%) Degree
2 14 (7.82%) OCP
2 14 (7.82%) Oracle Certification
3 11 (6.15%) Computer Science Degree
4 9 (5.03%) Postgraduate
5 6 (3.35%) Cisco Certification
5 6 (3.35%) MCITP
5 6 (3.35%) MCTS
5 6 (3.35%) Microsoft Certification
6 5 (2.79%) PhD
7 4 (2.23%) CCNA
7 4 (2.23%) CCNP
7 4 (2.23%) DBS Check
8 2 (1.12%) CCIE
8 2 (1.12%) CCIE Service Provider
8 2 (1.12%) CCSE
8 2 (1.12%) CCSP
8 2 (1.12%) SC Cleared
8 2 (1.12%) Security Cleared
8 2 (1.12%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 6 (3.35%) GDPR
1 6 (3.35%) PCI DSS
2 1 (0.56%) SLA
System Software
1 40 (22.35%) Active Directory
2 38 (21.23%) VMware Infrastructure
3 24 (13.41%) vSphere
4 16 (8.94%) Hyper-V
5 14 (7.82%) Virtual Machines
6 9 (5.03%) LXC
7 2 (1.12%) HDFS
8 1 (0.56%) iptables
8 1 (0.56%) Oracle RAC
Systems Management
1 15 (8.38%) Data Guard
1 15 (8.38%) Oracle RMAN
2 14 (7.82%) Opscode Chef
3 11 (6.15%) Nagios
4 5 (2.79%) ZABBIX
5 4 (2.23%) SCCM
6 3 (1.68%) Ansible
6 3 (1.68%) Jamf Pro
6 3 (1.68%) Puppet
7 1 (0.56%) Enterprise Manager Cloud Control
7 1 (0.56%) Oracle Enterprise Manager
7 1 (0.56%) Oracle Flashback
7 1 (0.56%) Salt
Vendors
1 73 (40.78%) Oracle
2 49 (27.37%) VMware
3 29 (16.20%) Microsoft
4 26 (14.53%) NetApp
4 26 (14.53%) Red Hat
5 10 (5.59%) Apple
6 8 (4.47%) Cisco
6 8 (4.47%) Hortonworks
7 4 (2.23%) F5
8 2 (1.12%) Alteryx
8 2 (1.12%) Blue Coat
8 2 (1.12%) CheckPoint
8 2 (1.12%) Citrix
8 2 (1.12%) Dell
8 2 (1.12%) Imperva
8 2 (1.12%) Infoblox
8 2 (1.12%) Tableau
9 1 (0.56%) Intel
9 1 (0.56%) MKS
9 1 (0.56%) SonicWALL