Period
to 23 September 2018

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 23 September 2018 with a comparison to the same period in the previous 2 years.

Open Source
East of England > Hertfordshire
6 months to
23 Sep 2018
Same period 2017 Same period 2016
Rank 120 108 126
Rank change year-on-year -12 +18 -4
Permanent jobs citing Open Source 81 103 96
As % of all permanent IT jobs advertised in Hertfordshire 1.98% 2.51% 2.14%
As % of the Processes & Methodologies category 2.20% 2.82% 2.39%
Number of salaries quoted 52 85 94
Hertfordshire median annual salary £57,500 £50,000 £60,000
Median salary % change year-on-year +15.00% -16.67% +20.00%
10th Percentile £38,750 £32,500 £38,750
90th Percentile £68,750 £65,000 £72,500
East of England median annual salary £52,500 £50,000 £55,000
% change year-on-year +5.00% -9.09% +22.22%

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 3,680 3,647 4,013
As % of all permanent IT jobs advertised in Hertfordshire 89.78% 88.97% 89.50%
Number of salaries quoted 2,879 3,102 3,302
Hertfordshire median annual salary £50,000 £47,000 £47,500
Median salary % change year-on-year +6.38% -1.05% +5.56%
10th Percentile £27,500 £27,000 £27,500
90th Percentile £75,000 £71,250 £71,250
East of England median annual salary £47,500 £45,000 £45,000
% change year-on-year +5.56% - +1.12%

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 23 September 2018.

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 23 September 2018. 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 -5 29 £60,000 - 2
Welwyn Garden City -3 26 £58,750 +75.37% 2
Watford -16 6 £90,000 +100.00% 3
Hemel Hempstead +6 4 £42,000 -44.92% 1
St Albans -6 4 £35,000 -10.26% 1
Radlett -3 1 £42,500 +13.33%
Open Source
East of England

For the 6 months to 23 September 2018, IT jobs citing Open Source also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Hertfordshire region with a requirement for Open Source.

1 65 (80.25%) Agile Software Development
2 36 (44.44%) Linux
2 36 (44.44%) Problem-Solving
3 32 (39.51%) Amazon AWS
4 31 (38.27%) Java
5 30 (37.04%) Python
6 29 (35.80%) Test Automation
7 27 (33.33%) DevOps
8 26 (32.10%) Continuous Improvement
9 25 (30.86%) Software Engineering
10 24 (29.63%) Retail
10 24 (29.63%) C#
10 24 (29.63%) .NET
11 20 (24.69%) ASP.NET
11 20 (24.69%) Unix
12 19 (23.46%) HTML
12 19 (23.46%) Continuous Deployment
13 18 (22.22%) Microservices
14 17 (20.99%) CSS
14 17 (20.99%) MVC
14 17 (20.99%) Scrum
14 17 (20.99%) Degree
14 17 (20.99%) Apache Cassandra
15 16 (19.75%) Ruby
15 16 (19.75%) Mainframe
16 15 (18.52%) Kubernetes
16 15 (18.52%) Data Centre
17 14 (17.28%) Google Cloud Platform
17 14 (17.28%) Grafana
17 14 (17.28%) JavaScript

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 8 (9.88%) SharePoint
2 7 (8.64%) Oracle Service Bus
2 7 (8.64%) Oracle SOA Suite
3 3 (3.70%) Apache
3 3 (3.70%) Confluence
3 3 (3.70%) IIS
4 2 (2.47%) Elasticsearch
4 2 (2.47%) OpenStack
5 1 (1.23%) Apache Pig
5 1 (1.23%) Apache Spark
5 1 (1.23%) NServiceBus
5 1 (1.23%) WebLogic
Cloud Services
1 32 (39.51%) Amazon AWS
2 14 (17.28%) Google Cloud Platform
3 13 (16.05%) Microsoft Azure
4 12 (14.81%) GitHub
5 8 (9.88%) Office 365
6 4 (4.94%) AWS Lambda
6 4 (4.94%) Serverless
7 3 (3.70%) Amazon EC2
7 3 (3.70%) Cloud Computing
8 2 (2.47%) IaaS
8 2 (2.47%) PaaS
9 1 (1.23%) Amazon SQS
9 1 (1.23%) AWS CodePipeline
Communications & Networking
1 10 (12.35%) TCP/IP
2 7 (8.64%) HTTP
2 7 (8.64%) SNMP
3 6 (7.41%) Firewall
3 6 (7.41%) VPN
4 5 (6.17%) Internet
4 5 (6.17%) Wireless
5 3 (3.70%) DHCP
5 3 (3.70%) DNS
5 3 (3.70%) ICMP
6 2 (2.47%) Asterisk PBX
6 2 (2.47%) BGP
6 2 (2.47%) Cisco IOS
6 2 (2.47%) Junos
6 2 (2.47%) LAN
6 2 (2.47%) MPLS
6 2 (2.47%) OSPF
6 2 (2.47%) PBX
6 2 (2.47%) WAN
7 1 (1.23%) SMTP
Database & Business Intelligence
1 17 (20.99%) Apache Cassandra
2 6 (7.41%) NoSQL
2 6 (7.41%) PostgreSQL
3 5 (6.17%) MySQL
4 4 (4.94%) Amazon DynamoDB
4 4 (4.94%) Relational Database
5 3 (3.70%) SQL Server
6 2 (2.47%) BigQuery
6 2 (2.47%) Oracle Database
7 1 (1.23%) Apache Hive
7 1 (1.23%) Big Data
7 1 (1.23%) Couchbase
7 1 (1.23%) Data Warehouse
7 1 (1.23%) Hadoop
7 1 (1.23%) MongoDB
7 1 (1.23%) OLTP
7 1 (1.23%) Redis
Development Applications
1 11 (13.58%) NUnit
1 11 (13.58%) Subversion
2 9 (11.11%) Git (software)
3 8 (9.88%) Metasploit
3 8 (9.88%) TeamCity
4 7 (8.64%) MSTest
4 7 (8.64%) VSS/SourceSafe
5 6 (7.41%) Jasmine
5 6 (7.41%) Selenium
6 5 (6.17%) Visual Studio Team System
7 3 (3.70%) Jenkins
7 3 (3.70%) JIRA
7 3 (3.70%) Team Foundation Server
7 3 (3.70%) Visual Studio
8 2 (2.47%) GitLab
8 2 (2.47%) IntelliJ
General
1 24 (29.63%) Retail
2 6 (7.41%) Advertising
2 6 (7.41%) Finance
3 4 (4.94%) Legal
3 4 (4.94%) Publishing
4 3 (3.70%) Marketing
5 2 (2.47%) Games
Job Titles
1 28 (34.57%) Developer
2 14 (17.28%) C# Developer
3 12 (14.81%) .NET Developer
3 12 (14.81%) Head of Development
3 12 (14.81%) Head of Software Development
4 11 (13.58%) Software Engineer
5 10 (12.35%) Senior Developer
6 9 (11.11%) C# .NET Developer
7 8 (9.88%) Security Engineer
7 8 (9.88%) Vulnerability Management Engineer
8 7 (8.64%) Senior .NET Developer
9 6 (7.41%) Java Developer
9 6 (7.41%) Senior C# .NET Developer
9 6 (7.41%) Senior C# Developer
10 4 (4.94%) ASP Developer
10 4 (4.94%) Database Engineer
10 4 (4.94%) Infrastructure Engineer
10 4 (4.94%) Java Engineer
10 4 (4.94%) Java Software Engineer
10 4 (4.94%) Senior ASP Developer
Libraries, Frameworks & Software Standards
1 24 (29.63%) .NET
2 20 (24.69%) ASP.NET
3 19 (23.46%) HTML
4 17 (20.99%) CSS
5 13 (16.05%) AngularJS
6 12 (14.81%) Akka
6 12 (14.81%) Kafka
6 12 (14.81%) Web Services
7 11 (13.58%) ASP.NET MVC
8 10 (12.35%) jQuery
9 9 (11.11%) ASP.NET Web API
10 8 (9.88%) Middleware
11 7 (8.64%) CSS3
11 7 (8.64%) HTML5
11 7 (8.64%) KnockoutJS
11 7 (8.64%) Twitter Bootstrap
11 7 (8.64%) XML
12 5 (6.17%) Elastic Stack
13 4 (4.94%) Node.js
13 4 (4.94%) REST
Miscellaneous
1 16 (19.75%) Mainframe
2 15 (18.52%) Data Centre
3 13 (16.05%) Computer Science
4 12 (14.81%) Public Cloud
4 12 (14.81%) User Experience
5 11 (13.58%) Security Operations Centre
6 4 (4.94%) Enterprise Software
6 4 (4.94%) Self-Motivation
7 3 (3.70%) Algorithms
7 3 (3.70%) Analytical Skills
7 3 (3.70%) Cloud Native
7 3 (3.70%) Cyber Kill Chain
7 3 (3.70%) Greenfield Project
7 3 (3.70%) Linux Command Line
7 3 (3.70%) Mobile App
8 2 (2.47%) Hybrid Cloud
8 2 (2.47%) Robotics
9 1 (1.23%) Data Structures
9 1 (1.23%) Enterprise Storage
9 1 (1.23%) Mobile Payment
Operating Systems
1 36 (44.44%) Linux
2 20 (24.69%) Unix
3 11 (13.58%) Kali Linux
4 7 (8.64%) Android
4 7 (8.64%) Apple iOS
4 7 (8.64%) Windows
5 5 (6.17%) Windows Server
6 3 (3.70%) AIX
6 3 (3.70%) Mac OS X
7 1 (1.23%) Debian
7 1 (1.23%) Solaris
7 1 (1.23%) Ubuntu
Processes & Methodologies
1 65 (80.25%) Agile Software Development
2 36 (44.44%) Problem-Solving
3 29 (35.80%) Test Automation
4 27 (33.33%) DevOps
5 26 (32.10%) Continuous Improvement
6 25 (30.86%) Software Engineering
7 19 (23.46%) Continuous Deployment
8 18 (22.22%) Microservices
9 17 (20.99%) MVC
9 17 (20.99%) Scrum
10 14 (17.28%) Kanban
11 13 (16.05%) Continuous Delivery
11 13 (16.05%) E-Commerce
11 13 (16.05%) Performance Testing
12 12 (14.81%) Continuous Integration
12 12 (14.81%) Data Privacy
12 12 (14.81%) People Management
12 12 (14.81%) Stakeholder Management
13 11 (13.58%) SIEM
13 11 (13.58%) Vulnerability Management
Programming Languages
1 31 (38.27%) Java
2 30 (37.04%) Python
3 24 (29.63%) C#
4 16 (19.75%) Ruby
5 14 (17.28%) JavaScript
5 14 (17.28%) SQL
6 12 (14.81%) Go
7 11 (13.58%) PHP
8 9 (11.11%) Perl
9 7 (8.64%) Bash Shell
9 7 (8.64%) VB.NET
10 4 (4.94%) PowerShell
11 3 (3.70%) VBA
12 2 (2.47%) C
12 2 (2.47%) Java 8
12 2 (2.47%) Scala
12 2 (2.47%) TypeScript
13 1 (1.23%) PL/SQL
13 1 (1.23%) R
Qualifications
1 17 (20.99%) Degree
2 11 (13.58%) CEH
2 11 (13.58%) CompTIA Security+
2 11 (13.58%) Computer Science Degree
2 11 (13.58%) SSCP
3 8 (9.88%) CISA
3 8 (9.88%) CISM
3 8 (9.88%) CISSP
3 8 (9.88%) CSSLP
3 8 (9.88%) GIAC
3 8 (9.88%) SANS
4 5 (6.17%) Cisco Certification
5 3 (3.70%) A+ Certification
5 3 (3.70%) CCENT
5 3 (3.70%) CCNA
5 3 (3.70%) GCIA
5 3 (3.70%) GCIH
5 3 (3.70%) GSEC
5 3 (3.70%) Network+ Certification
5 3 (3.70%) OSCP
System Software
1 6 (7.41%) Docker
2 4 (4.94%) VMware Infrastructure
3 3 (3.70%) Active Directory
3 3 (3.70%) Ceph
4 1 (1.23%) Microsoft App-V
Systems Management
1 15 (18.52%) Kubernetes
2 14 (17.28%) Grafana
3 11 (13.58%) Prometheus
4 8 (9.88%) Nessus
4 8 (9.88%) Nmap
5 6 (7.41%) Puppet
6 3 (3.70%) QRadar
7 2 (2.47%) Icinga
7 2 (2.47%) Kibana
7 2 (2.47%) logstash
7 2 (2.47%) Nagios
7 2 (2.47%) Opscode Chef
7 2 (2.47%) ZABBIX
8 1 (1.23%) Ansible
8 1 (1.23%) OpenView
8 1 (1.23%) Salt
8 1 (1.23%) Tivoli
Vendors
1 12 (14.81%) Microsoft
2 11 (13.58%) Oracle
3 9 (11.11%) Google
4 8 (9.88%) Netsparker
4 8 (9.88%) Qualys
5 7 (8.64%) VMware
5 7 (8.64%) Xamarin
6 6 (7.41%) New Relic
6 6 (7.41%) PagerDuty
7 5 (6.17%) Citrix
8 4 (4.94%) Aruba
8 4 (4.94%) Cisco
8 4 (4.94%) Juniper
9 3 (3.70%) NetApp
9 3 (3.70%) Salesforce.com
9 3 (3.70%) Sitecore
9 3 (3.70%) Splunk
9 3 (3.70%) Veeam
10 2 (2.47%) Foundry
10 2 (2.47%) IBM