The following table provides summary statistics for permanent job vacancies advertised in Essex with a requirement for Open Source skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Open Source over the 3 months to 29 June 2017 with a comparison to the same period in the previous 2 years.

Open Source
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 87 78 93
Rank change year-on-year -9 +15  
Permanent jobs citing Open Source 3 11 8
As % of all permanent IT jobs advertised in Essex 0.32% 1.08% 0.65%
As % of the Processes & Methodologies category 0.37% 1.31% 0.74%
Number of salaries quoted 3 11 8
Essex median annual salary £42,500 £62,500 £45,000
Median salary % change year-on-year -32.00% +38.88%  
10th Percentile £37,750 £61,250 £29,500
90th Percentile £48,932 £63,750 £67,500
East of England median annual salary £47,500 £56,250 £45,000
% change year-on-year -15.55% +25.00%  

Open Source is in the process and methodology 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 process and methodology skills.

Process & Methodology Skills
Essex
Permanent job vacancies with a requirement for process and methodology skills 805 840 1081
As % of all permanent IT job vacancies advertised in Essex 84.74% 82.76% 87.39%
Number of salaries quoted 2459 2306 2898
Essex median annual salary £50,000 £45,000 £45,000
Median salary % change year-on-year +11.11% -  
10th Percentile £30,000 £26,250 £27,500
90th Percentile £65,000 £68,750 £65,000
East of England median annual salary £47,500 £47,500 £45,000
% change year-on-year - +5.55%  

Open Source
Job Vacancy Trend in Essex

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

Job vacancy trend for Open Source in Essex

Open Source
Salary Trend in Essex

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

Salary trend for Open Source in Essex

Open Source
Job Locations in Essex

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Open Source within the Essex region over the 3 months to 29 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 -10 2 £41,250 -34.00%
Saffron Walden - 1 £49,602 -
Open Source
East of England

For the 6 months to 29 June 2017, IT jobs citing Open Source 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 Open Source.

1 14 (53.85%) Agile Software Development
2 9 (34.62%) OO
2 9 (34.62%) CCTV
2 9 (34.62%) Digital Media
2 9 (34.62%) Relational Database
3 8 (30.77%) Java
4 7 (26.92%) JavaScript
4 7 (26.92%) C
4 7 (26.92%) Web Services
4 7 (26.92%) RDBMS
4 7 (26.92%) Informatics
4 7 (26.92%) Computer Science
4 7 (26.92%) TDD
4 7 (26.92%) REST
5 6 (23.08%) Hudson
5 6 (23.08%) JIRA
5 6 (23.08%) Atlassian
5 6 (23.08%) GWT
5 6 (23.08%) Continuous Integration
5 6 (23.08%) Kanban
5 6 (23.08%) TeamCity
5 6 (23.08%) SC Cleared
5 6 (23.08%) Security Cleared
5 6 (23.08%) CruiseControl
5 6 (23.08%) Data Analysis
5 6 (23.08%) Active Directory
5 6 (23.08%) Middleware
5 6 (23.08%) ClearQuest
5 6 (23.08%) GIS
5 6 (23.08%) Scrum

Open Source
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 6 (23.08%) OpenStack
2 4 (15.38%) Apache
2 4 (15.38%) JBoss
3 1 (3.85%) Apache Geronimo
3 1 (3.85%) Apache Pig
3 1 (3.85%) Apache Spark
3 1 (3.85%) GlassFish
3 1 (3.85%) Tomcat
3 1 (3.85%) WebSphere
Applications
1 1 (3.85%) Weka
Business Applications
1 3 (11.54%) osCommerce
Cloud Services
1 1 (3.85%) GitHub
Communications & Networking
1 3 (11.54%) HTTP
Database & Business Intelligence
1 9 (34.62%) Relational Database
2 7 (26.92%) RDBMS
3 6 (23.08%) Geospatial Data
3 6 (23.08%) GIS
4 4 (15.38%) SQL Server
5 3 (11.54%) JasperReports
6 2 (7.69%) CouchDB
6 2 (7.69%) MongoDB
6 2 (7.69%) MySQL
6 2 (7.69%) Neo4j
6 2 (7.69%) PostgreSQL
7 1 (3.85%) Apache Cassandra
7 1 (3.85%) Apache Hive
7 1 (3.85%) Big Data
7 1 (3.85%) Hadoop
7 1 (3.85%) Mahout
7 1 (3.85%) MariaDB
7 1 (3.85%) NoSQL
7 1 (3.85%) Oracle Database
7 1 (3.85%) Sqoop
Development Applications
1 6 (23.08%) ClearQuest
1 6 (23.08%) CruiseControl
1 6 (23.08%) FishEye
1 6 (23.08%) Hudson
1 6 (23.08%) Jenkins
1 6 (23.08%) JIRA
1 6 (23.08%) JUnit
1 6 (23.08%) TeamCity
2 4 (15.38%) Ant
2 4 (15.38%) Maven
3 3 (11.54%) Selenium
3 3 (11.54%) SoapUI
3 3 (11.54%) Zephyr
4 1 (3.85%) Gradle
General
1 4 (15.38%) Legal
2 1 (3.85%) Automotive
2 1 (3.85%) Games
Job Titles
1 11 (42.31%) Developer
2 7 (26.92%) Software Developer
3 6 (23.08%) Senior Developer
4 5 (19.23%) Senior Software Developer
5 4 (15.38%) Coordinator
6 3 (11.54%) Java Engineer
6 3 (11.54%) Java Software Engineer
6 3 (11.54%) PHP Developer
6 3 (11.54%) Senior Java Engineer
6 3 (11.54%) Senior Java Software Engineer
6 3 (11.54%) Senior Software Engineer
6 3 (11.54%) Senior Software Test Engineer
6 3 (11.54%) Senior Test Engineer
6 3 (11.54%) Software Engineer
6 3 (11.54%) Software Test Engineer
6 3 (11.54%) Test Engineer
7 1 (3.85%) Java Developer
7 1 (3.85%) JavaScript Developer
7 1 (3.85%) Principal Developer
7 1 (3.85%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 7 (26.92%) REST
1 7 (26.92%) Web Services
2 6 (23.08%) CSS
2 6 (23.08%) GWT
2 6 (23.08%) Middleware
3 5 (19.23%) Ajax
3 5 (19.23%) HTML
4 4 (15.38%) Hibernate
4 4 (15.38%) JMS
4 4 (15.38%) SOAP
4 4 (15.38%) Spring
4 4 (15.38%) Swing
5 3 (11.54%) Apache Flex
5 3 (11.54%) AWT
5 3 (11.54%) JSON
5 3 (11.54%) RESTful
5 3 (11.54%) Symfony
5 3 (11.54%) Twig
6 2 (7.69%) HTML5
7 1 (3.85%) FreeMarker
Miscellaneous
1 9 (34.62%) CCTV
1 9 (34.62%) Digital Media
2 7 (26.92%) Computer Science
3 6 (23.08%) Analytical Skills
4 5 (19.23%) Private Cloud
4 5 (19.23%) Social Media
5 3 (11.54%) Foreign Exchange (FX)
5 3 (11.54%) Management Information System
5 3 (11.54%) N-Tier
6 1 (3.85%) Algorithms
6 1 (3.85%) e-Health
6 1 (3.85%) Grid Computing
Operating Systems
1 3 (11.54%) Linux
2 1 (3.85%) Unix
Processes & Methodologies
1 14 (53.85%) Agile Software Development
2 9 (34.62%) OO
3 7 (26.92%) Informatics
3 7 (26.92%) TDD
4 6 (23.08%) Continuous Integration
4 6 (23.08%) Data Analysis
4 6 (23.08%) DevOps
4 6 (23.08%) Issue Tracking
4 6 (23.08%) Kanban
4 6 (23.08%) Scrum
4 6 (23.08%) UML
5 5 (19.23%) Data Protection
6 4 (15.38%) Digital Forensics
6 4 (15.38%) Service Delivery
7 3 (11.54%) SOA
7 3 (11.54%) Software Engineering
7 3 (11.54%) Test Automation
7 3 (11.54%) Test Management
7 3 (11.54%) Test Scripting
7 3 (11.54%) Unit Testing
Programming Languages
1 8 (30.77%) Java
2 7 (26.92%) C
2 7 (26.92%) JavaScript
3 3 (11.54%) PHP
4 2 (7.69%) Perl
4 2 (7.69%) SQL
5 1 (3.85%) C++
5 1 (3.85%) Go
5 1 (3.85%) Haskell
5 1 (3.85%) PL/SQL
5 1 (3.85%) Python
5 1 (3.85%) R
5 1 (3.85%) Ruby
5 1 (3.85%) T-SQL
Qualifications
1 6 (23.08%) SC Cleared
1 6 (23.08%) Security Cleared
2 3 (11.54%) Degree
3 1 (3.85%) CISSP
3 1 (3.85%) Computer Science Degree
3 1 (3.85%) GSEC
3 1 (3.85%) PhD
Quality Assurance & Compliance
1 4 (15.38%) ISO/IEC 17025
System Software
1 6 (23.08%) Active Directory
2 1 (3.85%) Docker
2 1 (3.85%) HDFS
2 1 (3.85%) KVM
2 1 (3.85%) LXC
2 1 (3.85%) Slurm Workload Manager
2 1 (3.85%) Xen
Systems Management
1 1 (3.85%) Mesos
Vendors
1 6 (23.08%) Atlassian
2 4 (15.38%) Google
3 3 (11.54%) Adobe
4 1 (3.85%) Alteryx
4 1 (3.85%) Facebook
4 1 (3.85%) Oracle
4 1 (3.85%) Pegasus
4 1 (3.85%) Tableau
4 1 (3.85%) Twitter