Period
to 20 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Hertfordshire 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 6 months to 20 November 2017 with a comparison to the same period in the previous 2 years.

Open Source
East of England > Hertfordshire
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 96 122 103
Rank change year-on-year +26 -19 +20
Permanent jobs citing Open Source 127 99 155
As % of all permanent IT jobs advertised in Hertfordshire 2.89% 2.23% 2.87%
As % of the Processes & Methodologies category 3.41% 2.54% 3.28%
Number of salaries quoted 109 97 167
Hertfordshire median annual salary £55,000 £60,000 £55,000
Median salary % change year-on-year -8.33% +9.09% -8.33%
10th Percentile £33,950 £38,750 £37,500
90th Percentile £70,500 £80,000 £77,500
East of England median annual salary £50,000 £55,000 £50,000
% change year-on-year -9.09% +10.00% +17.65%

Open Source is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Hertfordshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Hertfordshire
Permanent vacancies with a requirement for process or methodology skills 3722 3893 4722
As % of all permanent IT jobs advertised in Hertfordshire 84.61% 87.88% 87.56%
Number of salaries quoted 3137 3217 3834
Hertfordshire median annual salary £47,500 £50,000 £47,500
Median salary % change year-on-year -5.00% +5.26% +0.53%
10th Percentile £28,500 £27,500 £26,750
90th Percentile £71,250 £72,500 £71,250
East of England median annual salary £47,500 £45,000 £45,000
% change year-on-year +5.56% - +3.45%

Open Source
Job Vacancy Trend in Hertfordshire

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

Job vacancy trend for Open Source in Hertfordshire

Open Source
Salary Trend in Hertfordshire

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

Salary trend for Open Source in Hertfordshire

Open Source
Salary Histogram in Hertfordshire

The salary distribution of IT jobs citing Open Source in Hertfordshire over the 6 months to 20 November 2017.

Salary histogram for Open Source in Hertfordshire

Open Source
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Open Source within the Hertfordshire region over the 6 months to 20 November 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
Hatfield +12 35 £60,000 +6.67% 6
Watford 0 24 £60,000 -25.00% 1
St Albans +11 19 £39,000 -8.24%
Radlett - 12 £37,500 -
Hemel Hempstead +5 10 £41,000 -31.67% 1
Welwyn Garden City -4 6 £33,500 -63.78% 1
Stevenage -5 4 £46,500 -33.57%
Rickmansworth - 1 £82,500 -
Open Source
East of England

For the 6 months to 20 November 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 Hertfordshire region with a requirement for Open Source.

1 88 (69.29%) Linux
2 64 (50.39%) Agile Software Development
3 50 (39.37%) C#
4 48 (37.80%) .NET
4 48 (37.80%) ASP.NET
4 48 (37.80%) Python
5 47 (37.01%) JavaScript
6 44 (34.65%) Degree
7 42 (33.07%) HTML
8 41 (32.28%) CSS
9 38 (29.92%) MVC
10 36 (28.35%) SQL
11 32 (25.20%) ASP.NET MVC
12 31 (24.41%) Software Engineering
12 31 (24.41%) PostgreSQL
12 31 (24.41%) Puppet
13 30 (23.62%) Kubernetes
14 28 (22.05%) XML
15 27 (21.26%) Computer Science
15 27 (21.26%) Amazon AWS
15 27 (21.26%) OpenStack
15 27 (21.26%) Computer Science Degree
16 26 (20.47%) AngularJS
16 26 (20.47%) Finance
16 26 (20.47%) Web Services
17 25 (19.69%) Unix
17 25 (19.69%) OO
17 25 (19.69%) Configuration Management
17 25 (19.69%) Test Automation
17 25 (19.69%) jQuery

Open Source
Co-occurring IT Skills in Hertfordshire 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 (21.26%) OpenStack
2 18 (14.17%) Apache
3 16 (12.60%) SharePoint
4 15 (11.81%) Oracle SOA Suite
5 12 (9.45%) Confluence
6 11 (8.66%) Oracle Service Bus
7 6 (4.72%) Cloud Foundry
8 4 (3.15%) Elasticsearch
8 4 (3.15%) MS Exchange
9 3 (2.36%) CMS
9 3 (2.36%) Umbraco
9 3 (2.36%) WebLogic
10 2 (1.57%) Apache Spark
11 1 (0.79%) Skype for Business
11 1 (0.79%) Tomcat
Applications
1 4 (3.15%) Microsoft Office
Business Applications
1 4 (3.15%) Magento
Cloud Services
1 27 (21.26%) Amazon AWS
2 20 (15.75%) Office 365
3 8 (6.30%) Google Cloud Platform
4 7 (5.51%) Amazon EC2
4 7 (5.51%) GitHub
5 6 (4.72%) AWS Elastic Beanstalk
5 6 (4.72%) Google App Engine
5 6 (4.72%) Google Compute Engine
6 5 (3.94%) Cloud Computing
7 3 (2.36%) Microsoft Azure
7 3 (2.36%) PaaS
8 2 (1.57%) IaaS
8 2 (1.57%) SaaS
9 1 (0.79%) Amazon EMR
9 1 (0.79%) Amazon S3
9 1 (0.79%) Amazon SQS
9 1 (0.79%) AWS CloudFormation
9 1 (0.79%) CloudFront
9 1 (0.79%) Route 53
Communications & Networking
1 15 (11.81%) TCP/IP
2 7 (5.51%) Firewall
2 7 (5.51%) VPN
3 6 (4.72%) Broadband
3 6 (4.72%) NAS
3 6 (4.72%) Software-Defined Networking
3 6 (4.72%) Wi-Fi
4 5 (3.94%) Internet
5 4 (3.15%) HTTP
6 3 (2.36%) DNS
7 2 (1.57%) ICMP
8 1 (0.79%) Skype
Database & Business Intelligence
1 31 (24.41%) PostgreSQL
2 21 (16.54%) MySQL
3 16 (12.60%) NoSQL
4 12 (9.45%) Apache Cassandra
5 11 (8.66%) Hadoop
6 10 (7.87%) Data Mining
6 10 (7.87%) Redis
7 9 (7.09%) Amazon RDS
8 6 (4.72%) DataStax
8 6 (4.72%) SQL Server
9 4 (3.15%) Big Data
9 4 (3.15%) Relational Database
10 3 (2.36%) MongoDB
11 2 (1.57%) DB2
11 2 (1.57%) Oracle Database
12 1 (0.79%) Data Warehouse
12 1 (0.79%) OLTP
Development Applications
1 25 (19.69%) Subversion
2 21 (16.54%) Git (software)
2 21 (16.54%) NUnit
3 13 (10.24%) VSS/SourceSafe
4 12 (9.45%) JIRA
4 12 (9.45%) Selenium
5 11 (8.66%) Jasmine
5 11 (8.66%) MSTest
6 10 (7.87%) Jenkins
7 8 (6.30%) Cucumber
8 7 (5.51%) SpecFlow
9 6 (4.72%) TeamCity
10 5 (3.94%) Visual Studio Team System
11 1 (0.79%) Atlassian Bamboo
11 1 (0.79%) Fiddler
11 1 (0.79%) FitNesse
11 1 (0.79%) JBehave
11 1 (0.79%) Mockito
11 1 (0.79%) Moq
11 1 (0.79%) WebDriver
General
1 26 (20.47%) Finance
2 16 (12.60%) Marketing
3 15 (11.81%) Games
4 13 (10.24%) Legal
5 12 (9.45%) Advertising
6 8 (6.30%) Publishing
6 8 (6.30%) Retail
7 4 (3.15%) Law
8 2 (1.57%) French Language
8 2 (1.57%) German Language
8 2 (1.57%) Swedish Language
Job Titles
1 61 (48.03%) Developer
2 27 (21.26%) C# Developer
2 27 (21.26%) Senior Developer
3 16 (12.60%) .NET Developer
3 16 (12.60%) Senior C# Developer
4 14 (11.02%) C# .NET Developer
5 13 (10.24%) ASP.NET Developer
5 13 (10.24%) Senior .NET Developer
5 13 (10.24%) Senior C# .NET Developer
5 13 (10.24%) Software Developer
6 11 (8.66%) C# ASP.NET Developer
6 11 (8.66%) Software Engineer
7 10 (7.87%) Senior ASP.NET Developer
7 10 (7.87%) Senior C# ASP.NET Developer
7 10 (7.87%) Systems Engineer
8 9 (7.09%) Administrator
8 9 (7.09%) Systems Developer
9 8 (6.30%) ASP.NET MVC Developer
9 8 (6.30%) C# Software Developer
10 7 (5.51%) Platform Engineer
Libraries, Frameworks & Software Standards
1 48 (37.80%) .NET
1 48 (37.80%) ASP.NET
2 42 (33.07%) HTML
3 41 (32.28%) CSS
4 32 (25.20%) ASP.NET MVC
5 28 (22.05%) XML
6 26 (20.47%) AngularJS
6 26 (20.47%) Web Services
7 25 (19.69%) jQuery
8 24 (18.90%) Twitter Bootstrap
9 21 (16.54%) ASP.NET Web API
10 14 (11.02%) Middleware
11 12 (9.45%) HTML5
12 11 (8.66%) CSS3
12 11 (8.66%) KnockoutJS
13 9 (7.09%) EDI
14 8 (6.30%) Gherkin
14 8 (6.30%) JSON
14 8 (6.30%) React
15 7 (5.51%) REST
Miscellaneous
1 27 (21.26%) Computer Science
2 15 (11.81%) User Experience
3 11 (8.66%) Private Cloud
4 10 (7.87%) Blog
5 9 (7.09%) Public Cloud
6 7 (5.51%) BBC
7 6 (4.72%) Data Centre
7 6 (4.72%) Mobile App
8 5 (3.94%) Virtual Team
9 4 (3.15%) Analytical Skills
9 4 (3.15%) Smart Meter
10 3 (2.36%) Hybrid Cloud
11 2 (1.57%) Greenfield Project
11 2 (1.57%) Replication
12 1 (0.79%) Driving Licence
12 1 (0.79%) Enterprise Software
12 1 (0.79%) N-Tier
12 1 (0.79%) Online Games
12 1 (0.79%) PKI
12 1 (0.79%) PMI
Operating Systems
1 88 (69.29%) Linux
2 25 (19.69%) Unix
3 15 (11.81%) CoreOS
3 15 (11.81%) Windows
4 13 (10.24%) Debian
4 13 (10.24%) Ubuntu
5 9 (7.09%) Windows Server
6 7 (5.51%) AIX
7 4 (3.15%) Kali Linux
7 4 (3.15%) Mac OS X
8 3 (2.36%) Solaris
9 2 (1.57%) Android
9 2 (1.57%) Red Hat Enterprise Linux
10 1 (0.79%) Apple iOS
10 1 (0.79%) Windows 7
10 1 (0.79%) Windows Server 2008
Processes & Methodologies
1 64 (50.39%) Agile Software Development
2 38 (29.92%) MVC
3 31 (24.41%) Software Engineering
4 25 (19.69%) Configuration Management
4 25 (19.69%) OO
4 25 (19.69%) Test Automation
5 24 (18.90%) TDD
6 23 (18.11%) Scrum
7 21 (16.54%) DevOps
8 19 (14.96%) Business Intelligence
8 19 (14.96%) Mathematics
9 18 (14.17%) Continuous Integration
9 18 (14.17%) Mobile Development
10 17 (13.39%) Continuous Deployment
11 16 (12.60%) SOA
12 15 (11.81%) Mentoring
12 15 (11.81%) Physics
12 15 (11.81%) Server Building
13 13 (10.24%) Disaster Recovery
13 13 (10.24%) Prototyping
Programming Languages
1 50 (39.37%) C#
2 48 (37.80%) Python
3 47 (37.01%) JavaScript
4 36 (28.35%) SQL
5 23 (18.11%) Java
6 16 (12.60%) Ruby
7 15 (11.81%) Shell Script
8 13 (10.24%) PHP
9 11 (8.66%) Bash Shell
9 11 (8.66%) C++
10 10 (7.87%) C
10 10 (7.87%) Go
10 10 (7.87%) Perl
11 7 (5.51%) VB.NET
11 7 (5.51%) VBA
12 3 (2.36%) TypeScript
13 2 (1.57%) Clojure
13 2 (1.57%) F#
13 2 (1.57%) Haskell
13 2 (1.57%) Scala
Qualifications
1 44 (34.65%) Degree
2 27 (21.26%) Computer Science Degree
3 2 (1.57%) Master's Degree
4 1 (0.79%) MBA
4 1 (0.79%) PMI Certification
4 1 (0.79%) PMP
Quality Assurance & Compliance
1 3 (2.36%) QA
System Software
1 23 (18.11%) Docker
2 16 (12.60%) Ceph
3 7 (5.51%) VMware ESXi
4 6 (4.72%) VMware Infrastructure
4 6 (4.72%) vSphere
5 2 (1.57%) Active Directory
5 2 (1.57%) Microsoft App-V
6 1 (0.79%) Hyper-V
Systems Management
1 31 (24.41%) Puppet
2 30 (23.62%) Kubernetes
3 10 (7.87%) Ansible
3 10 (7.87%) Cobbler
4 9 (7.09%) Opscode Chef
5 6 (4.72%) Grafana
5 6 (4.72%) OpenNMS
5 6 (4.72%) Prometheus
6 3 (2.36%) Terraform
7 1 (0.79%) OpenView
7 1 (0.79%) SCCM
7 1 (0.79%) Tivoli
Vendors
1 23 (18.11%) Microsoft
2 22 (17.32%) Oracle
3 20 (15.75%) IBM
4 14 (11.02%) VMware
4 14 (11.02%) Xamarin
5 9 (7.09%) Google
6 7 (5.51%) NetApp
6 7 (5.51%) Virgin Media
7 6 (4.72%) New Relic
7 6 (4.72%) Salesforce.com
7 6 (4.72%) Sitecore
8 5 (3.94%) Citrix
8 5 (3.94%) Intel
8 5 (3.94%) NVIDIA
8 5 (3.94%) Veeam
9 4 (3.15%) Apple
9 4 (3.15%) Facebook
9 4 (3.15%) Zend
10 1 (0.79%) Atlassian
10 1 (0.79%) BMC