Period
to 11 December 2018

The following table provides summary statistics for permanent job vacancies advertised in Hertfordshire with a requirement for JavaScript skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited JavaScript over the 6 months to 11 December 2018 with a comparison to the same period in the previous 2 years.

JavaScript (including ECMAScript)
East of England > Hertfordshire
6 months to
11 Dec 2018
Same period 2017 Same period 2016
Rank 7 9 12
Rank change year-on-year +2 +3 -1
Permanent jobs citing JavaScript 599 706 595
As % of all permanent IT jobs advertised in Hertfordshire 15.49% 15.85% 13.35%
As % of the Programming Languages category 31.59% 30.21% 27.22%
Number of salaries quoted 538 641 580
Hertfordshire median annual salary £50,000 £47,500 £42,500
Median salary % change year-on-year +5.26% +11.76% -5.56%
10th Percentile £31,250 £31,250 £27,500
90th Percentile £67,500 £66,250 £63,750
East of England median annual salary £45,000 £45,000 £40,000
% change year-on-year - +12.50% -1.23%

JavaScript is in the Programming Languages 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 coding skills.

All Programming Languages
Hertfordshire
Permanent vacancies with a requirement for coding skills 1,896 2,337 2,186
As % of all permanent IT jobs advertised in Hertfordshire 49.03% 52.48% 49.04%
Number of salaries quoted 1,570 2,037 1,894
Hertfordshire median annual salary £50,000 £47,500 £47,500
Median salary % change year-on-year +5.26% - +5.56%
10th Percentile £30,000 £31,250 £27,500
90th Percentile £72,000 £67,500 £67,500
East of England median annual salary £47,500 £47,500 £45,000
% change year-on-year - +5.56% +5.88%

JavaScript
Job Vacancy Trend in Hertfordshire

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

Job vacancy trend for JavaScript in Hertfordshire

JavaScript
Salary Trend in Hertfordshire

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

Salary trend for JavaScript in Hertfordshire

JavaScript
Salary Histogram in Hertfordshire

The salary distribution of IT jobs citing JavaScript in Hertfordshire over the 6 months to 11 December 2018.

Salary histogram for JavaScript in Hertfordshire

JavaScript
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JavaScript within the Hertfordshire region over the 6 months to 11 December 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
Watford -1 188 £50,000 - 24
St Albans -3 91 £55,000 +10.00% 14
Hemel Hempstead +4 58 £45,000 - 3
Stevenage -5 25 £52,500 +31.25% 3
Welwyn Garden City -14 22 £55,000 -8.33% 2
Hatfield -19 20 £53,750 -2.27% 3
Waltham Cross - 18 £47,500 - 3
Rickmansworth 0 16 £55,000 - 1
Borehamwood +17 15 £42,500 - 1
Broxbourne -3 13 £70,000 +55.56%
Harpenden +16 10 £45,000 -14.29% 3
Bishop's Stortford -2 9 £30,000 -14.29% 5
Berkhamsted -4 8 £28,250 -13.08% 3
Potters Bar +5 7 £65,000 +44.44%
Hertford +4 7 £22,500 -52.63%
Welwyn - 5 £63,000 -
Hitchin -2 4 £39,250 +12.14% 2
Letchworth -8 4 £30,000 -7.69% 1
Abbots Langley - 2 £58,750 - 8
Kings Langley -3 1 £29,000 -10.77% 2
JavaScript
East of England

For the 6 months to 11 December 2018, IT jobs citing JavaScript 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 JavaScript.

1 370 (61.77%) HTML
2 343 (57.26%) CSS
3 300 (50.08%) C#
4 298 (49.75%) .NET
5 281 (46.91%) Agile Software Development
6 215 (35.89%) SQL
7 191 (31.89%) AngularJS
8 178 (29.72%) ASP.NET
9 170 (28.38%) MVC
10 159 (26.54%) TDD
11 153 (25.54%) Java
12 135 (22.54%) SQL Server
12 135 (22.54%) jQuery
13 127 (21.20%) Web Development
14 114 (19.03%) Web Services
15 104 (17.36%) Microsoft
16 99 (16.53%) HTML5
17 98 (16.36%) Scrum
17 98 (16.36%) React
18 97 (16.19%) User Experience
19 94 (15.69%) XML
20 92 (15.36%) Problem-Solving
21 79 (13.19%) Git (software)
22 78 (13.02%) .NET Framework
23 77 (12.85%) Amazon AWS
23 77 (12.85%) Software Engineering
24 73 (12.19%) RESTful
25 72 (12.02%) Front End Development
26 71 (11.85%) Node.js
27 70 (11.69%) ASP.NET MVC

JavaScript
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 38 (6.34%) SharePoint
2 15 (2.50%) CMS
3 13 (2.17%) IIS
4 12 (2.00%) Tomcat
4 12 (2.00%) Umbraco
5 11 (1.84%) Elasticsearch
6 10 (1.67%) Drupal
7 9 (1.50%) JBoss
7 9 (1.50%) WebSphere
8 8 (1.34%) Oracle Service Bus
8 8 (1.34%) Oracle SOA Suite
9 6 (1.00%) SharePoint 2013
10 5 (0.83%) WordPress
11 4 (0.67%) Apache
11 4 (0.67%) NServiceBus
11 4 (0.67%) Sitecore CMS
12 2 (0.33%) WebLogic
13 1 (0.17%) Confluence
13 1 (0.17%) nginx
13 1 (0.17%) SharePoint Server
Applications
1 20 (3.34%) Photoshop
2 15 (2.50%) Microsoft Excel
3 14 (2.34%) Microsoft Project
4 3 (0.50%) GIMP
5 2 (0.33%) Microsoft Office
6 1 (0.17%) Adobe Creative Suite
6 1 (0.17%) Adobe Illustrator
6 1 (0.17%) InVision
6 1 (0.17%) Microsoft PowerPoint
Business Applications
1 30 (5.01%) Dynamics CRM
2 8 (1.34%) Dynamics NAV
3 4 (0.67%) Magento
4 2 (0.33%) SAP Hybris
4 2 (0.33%) SAP S/4HANA
4 2 (0.33%) WebTrends
5 1 (0.17%) Dynamics AX
5 1 (0.17%) JDE OneWorld
5 1 (0.17%) NetSuite
Cloud Services
1 77 (12.85%) Amazon AWS
2 63 (10.52%) Microsoft Azure
3 42 (7.01%) SaaS
4 21 (3.51%) AWS Lambda
4 21 (3.51%) Serverless
5 18 (3.01%) Amazon EC2
6 15 (2.50%) Google Analytics
7 10 (1.67%) Office 365
8 9 (1.50%) npm
9 6 (1.00%) Dynamics 365
10 3 (0.50%) Cloud Computing
10 3 (0.50%) GitHub
11 1 (0.17%) Azure Data Factory
11 1 (0.17%) Google Cloud Platform
Communications & Networking
1 27 (4.51%) HTTP
2 14 (2.34%) TCP/IP
3 13 (2.17%) Internet
4 8 (1.34%) SSL
5 5 (0.83%) Firewall
6 3 (0.50%) VPN
7 2 (0.33%) DNS
7 2 (0.33%) Skype
8 1 (0.17%) Extranet
8 1 (0.17%) Intranet
8 1 (0.17%) Wi-Fi
Database & Business Intelligence
1 135 (22.54%) SQL Server
2 33 (5.51%) Relational Database
3 31 (5.18%) MongoDB
4 30 (5.01%) MySQL
5 27 (4.51%) SQL Server Reporting Services
6 21 (3.51%) Amazon DynamoDB
6 21 (3.51%) NoSQL
7 14 (2.34%) Crystal Reports
7 14 (2.34%) MS Access
7 14 (2.34%) Redis
8 12 (2.00%) PostgreSQL
9 9 (1.50%) Oracle Database
10 8 (1.34%) Oracle Database 12c
10 8 (1.34%) RDBMS
11 6 (1.00%) SQL Server 2012
11 6 (1.00%) SQL Server 2014
12 4 (0.67%) Big Data
12 4 (0.67%) SQL Server 2008
12 4 (0.67%) SQL Server Integration Services
12 4 (0.67%) Sybase ASE
Development Applications
1 79 (13.19%) Git (software)
2 60 (10.02%) Visual Studio
3 43 (7.18%) NUnit
4 31 (5.18%) Team Foundation Server
5 22 (3.67%) StyleCop
6 21 (3.51%) Subversion
7 20 (3.34%) gulp
8 17 (2.84%) Octopus Deploy
9 16 (2.67%) JIRA
10 14 (2.34%) Karma Test Runner
11 12 (2.00%) Grunt
11 12 (2.00%) Jenkins
11 12 (2.00%) LabVIEW
11 12 (2.00%) Redmine
11 12 (2.00%) Selenium
11 12 (2.00%) webpack
12 11 (1.84%) Atlassian Bamboo
12 11 (1.84%) Moq
13 10 (1.67%) WebDriver
14 9 (1.50%) Jasmine
General
1 68 (11.35%) Finance
2 33 (5.51%) Retail
3 26 (4.34%) Back Office
4 20 (3.34%) Banking
5 11 (1.84%) Telecoms
6 10 (1.67%) Pharmaceutical
7 9 (1.50%) Games
8 7 (1.17%) Marketing
9 5 (0.83%) Legal
10 4 (0.67%) Automotive
11 1 (0.17%) Advertising
11 1 (0.17%) Investment Banking
11 1 (0.17%) Law
Job Titles
1 428 (71.45%) Developer
2 153 (25.54%) .NET Developer
3 129 (21.54%) C# Developer
4 87 (14.52%) Full Stack Developer
5 79 (13.19%) C# .NET Developer
6 63 (10.52%) Front End Developer (Client-Side Developer)
7 57 (9.52%) ASP.NET Developer
7 57 (9.52%) Software Developer
8 56 (9.35%) Senior Developer
9 54 (9.02%) Java Developer
10 47 (7.85%) JavaScript Developer
11 46 (7.68%) C# ASP.NET Developer
12 45 (7.51%) Software Engineer
13 42 (7.01%) Consultant
14 38 (6.34%) Junior
15 33 (5.51%) Angular Developer
16 22 (3.67%) Web Developer
17 21 (3.51%) Implementation Consultant
17 21 (3.51%) Senior .NET Developer
18 20 (3.34%) Junior Developer
Libraries, Frameworks & Software Standards
1 370 (61.77%) HTML
2 343 (57.26%) CSS
3 298 (49.75%) .NET
4 191 (31.89%) AngularJS
5 178 (29.72%) ASP.NET
6 135 (22.54%) jQuery
7 114 (19.03%) Web Services
8 99 (16.53%) HTML5
9 98 (16.36%) React
10 94 (15.69%) XML
11 78 (13.02%) .NET Framework
12 73 (12.19%) RESTful
13 71 (11.85%) Node.js
14 70 (11.69%) ASP.NET MVC
15 60 (10.02%) Sass
16 51 (8.51%) REST
17 43 (7.18%) Entity Framework
18 42 (7.01%) WCF
19 38 (6.34%) CSS3
19 38 (6.34%) JSON
Miscellaneous
1 97 (16.19%) User Experience
2 63 (10.52%) Greenfield Project
3 62 (10.35%) Analytical Skills
4 40 (6.68%) Enterprise Software
5 26 (4.34%) Mobile App
6 15 (2.50%) Fintech
7 14 (2.34%) Robotics
8 7 (1.17%) Media Streaming
9 6 (1.00%) Driving Licence
10 4 (0.67%) Private Cloud
11 3 (0.50%) iPhone
12 2 (0.33%) N-Tier
13 1 (0.17%) Algorithms
13 1 (0.17%) Digital TV
13 1 (0.17%) Internet of Things
13 1 (0.17%) Photography
13 1 (0.17%) Self-Motivation
13 1 (0.17%) Social Media
13 1 (0.17%) Social Network
13 1 (0.17%) W3C
Operating Systems
1 44 (7.35%) Windows
2 33 (5.51%) Linux
3 25 (4.17%) Windows Server
4 18 (3.01%) Android
5 13 (2.17%) Apple iOS
6 7 (1.17%) Unix
7 5 (0.83%) CentOS
7 5 (0.83%) Ubuntu
7 5 (0.83%) Windows Server 2012
8 3 (0.50%) Windows 10
8 3 (0.50%) Windows 8
9 2 (0.33%) Windows Phone
Processes & Methodologies
1 281 (46.91%) Agile Software Development
2 170 (28.38%) MVC
3 159 (26.54%) TDD
4 127 (21.20%) Web Development
5 98 (16.36%) Scrum
6 92 (15.36%) Problem-Solving
7 77 (12.85%) Software Engineering
8 72 (12.02%) Front End Development
9 64 (10.68%) OO
10 56 (9.35%) Workflow
11 51 (8.51%) Coaching
12 49 (8.18%) SOLID
13 46 (7.68%) Computer Science
13 46 (7.68%) DevOps
14 44 (7.35%) Decision-Making
15 43 (7.18%) Unit Testing
16 42 (7.01%) Test Automation
17 39 (6.51%) E-Commerce
17 39 (6.51%) Project Management
18 36 (6.01%) Mentoring
Programming Languages
1 300 (50.08%) C#
2 215 (35.89%) SQL
3 153 (25.54%) Java
4 64 (10.68%) TypeScript
5 60 (10.02%) T-SQL
6 51 (8.51%) Python
7 47 (7.85%) PHP
8 46 (7.68%) C++
9 32 (5.34%) C
10 29 (4.84%) ES6
11 26 (4.34%) Apex Code
12 22 (3.67%) Scala
13 21 (3.51%) Java 8
14 17 (2.84%) VBScript
15 16 (2.67%) Ruby
15 16 (2.67%) VB
16 14 (2.34%) VBA
17 13 (2.17%) VB.NET
18 12 (2.00%) PL/SQL
19 11 (1.84%) PowerShell
Qualifications
1 64 (10.68%) Degree
2 25 (4.17%) Computer Science Degree
3 7 (1.17%) Numerate Degree
3 7 (1.17%) Security Cleared
4 6 (1.00%) SC Cleared
5 5 (0.83%) MCSD
5 5 (0.83%) Microsoft Certification
6 3 (0.50%) HND
7 2 (0.33%) ISTQB
8 1 (0.17%) ISEB
8 1 (0.17%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 22 (3.67%) QA
2 3 (0.50%) WAI
3 2 (0.33%) GDPR
3 2 (0.33%) PCI DSS
4 1 (0.17%) Sarbanes-Oxley
System Software
1 19 (3.17%) Docker
2 11 (1.84%) VMware Infrastructure
3 6 (1.00%) Hyper-V
3 6 (1.00%) VirtualBox
4 5 (0.83%) Active Directory
5 3 (0.50%) iptables
5 3 (0.50%) Samba
5 3 (0.50%) VMware ESXi
5 3 (0.50%) vSphere
6 2 (0.33%) VMware NSX
Systems Management
1 8 (1.34%) Graphite
2 6 (1.00%) Consul
3 4 (0.67%) Kubernetes
3 4 (0.67%) Opscode Chef
4 3 (0.50%) Docker Swarm
4 3 (0.50%) Nagios
4 3 (0.50%) vCenter Server
4 3 (0.50%) vRealize
4 3 (0.50%) vRealize Orchestrator
5 1 (0.17%) Ansible
5 1 (0.17%) Puppet
Vendors
1 104 (17.36%) Microsoft
2 40 (6.68%) Salesforce.com
3 28 (4.67%) Oracle
4 18 (3.01%) Google
5 17 (2.84%) VMware
6 16 (2.67%) Optimizely
7 15 (2.50%) Xamarin
8 13 (2.17%) IBM
9 12 (2.00%) Sybase
10 5 (0.83%) Nintex
11 4 (0.67%) Adobe
11 4 (0.67%) SAP
11 4 (0.67%) Sitecore
12 3 (0.50%) hybris
12 3 (0.50%) Red Hat
13 2 (0.33%) EXTOL
13 2 (0.33%) IFS
13 2 (0.33%) WooCommerce
14 1 (0.17%) Atlassian
14 1 (0.17%) Zend