Period
to 20 March 2019

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 20 March 2019 with a comparison to the same period in the previous 2 years.

JavaScript (including ECMAScript)
East of England > Hertfordshire
6 months to
20 Mar 2019
Same period 2018 Same period 2017
Rank 6 8 9
Rank change year-on-year +2 +1 +7
Permanent jobs citing JavaScript 536 754 704
As % of all permanent IT jobs advertised in Hertfordshire 16.54% 15.20% 15.66%
As % of the Programming Languages category 35.80% 29.46% 31.23%
Number of salaries quoted 477 686 692
Hertfordshire median annual salary £50,000 £50,000 £42,500
Median salary % change year-on-year - +17.65% -5.56%
10th Percentile £28,900 £32,500 £27,500
90th Percentile £67,500 £67,500 £63,750
East of England median annual salary £45,000 £45,000 £40,000
% change year-on-year - +12.50% -5.88%

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 1,497 2,559 2,254
As % of all permanent IT jobs advertised in Hertfordshire 46.19% 51.60% 50.13%
Number of salaries quoted 1,221 2,186 1,939
Hertfordshire median annual salary £50,000 £50,000 £47,500
Median salary % change year-on-year - +5.26% +5.56%
10th Percentile £28,500 £31,250 £29,000
90th Percentile £68,750 £71,250 £70,000
East of England median annual salary £47,500 £50,000 £45,000
% change year-on-year -5.00% +11.11% +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 20 March 2019.

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 20 March 2019. 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 0 157 £51,250 -2.38% 13
St Albans +3 65 £51,250 -2.38% 12
Hemel Hempstead +5 48 £45,000 - 12
Stevenage +4 44 £52,500 +31.25% 8
Welwyn Garden City +35 26 £55,000 -8.33% 2
Hatfield -25 20 £51,500 -10.43% 5
Waltham Cross - 20 £47,500 - 3
Berkhamsted -1 17 £25,000 -50.00% 1
Bishop's Stortford +4 15 £37,500 - 4
Borehamwood +4 8 £43,750 -12.50% 2
Letchworth -7 7 £32,500 -7.14%
Hertford +9 6 £22,500 -50.00% 1
Potters Bar -1 6 £41,000 -13.68% 4
Welwyn - 6 £63,000 -
Rickmansworth -4 4 £55,750 +6.19% 1
Baldock - 4 £27,500 - 1
Broxbourne +4 3 £70,000 +100.00%
Harpenden +5 2 £40,000 -11.11% 2
Abbots Langley - 2 £58,750 - 4
Kings Langley -4 1 £29,000 -38.95% 3
Hitchin -8 1 £55,000 +57.14% 1
JavaScript
East of England

For the 6 months to 20 March 2019, 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.

1 380 (70.90%) HTML
2 358 (66.79%) CSS
3 264 (49.25%) C#
4 262 (48.88%) .NET
4 262 (48.88%) Agile Software Development
5 189 (35.26%) AngularJS
6 167 (31.16%) ASP.NET
7 161 (30.04%) SQL
8 145 (27.05%) MVC
9 141 (26.31%) Java
10 128 (23.88%) TDD
11 126 (23.51%) SQL Server
12 123 (22.95%) jQuery
13 122 (22.76%) Scrum
14 115 (21.46%) Web Development
15 112 (20.90%) React
16 99 (18.47%) Microsoft
17 95 (17.72%) HTML5
18 91 (16.98%) User Experience
19 89 (16.60%) Web Services
20 88 (16.42%) OO
21 87 (16.23%) XML
22 79 (14.74%) Git (software)
23 73 (13.62%) Software Engineering
24 72 (13.43%) Unit Testing
24 72 (13.43%) Node.js
25 71 (13.25%) RESTful
25 71 (13.25%) Front End Development
26 69 (12.87%) TypeScript
27 67 (12.50%) PHP

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 30 (5.60%) SharePoint
2 12 (2.24%) IIS
2 12 (2.24%) Tomcat
3 11 (2.05%) Confluence
4 9 (1.68%) JBoss
4 9 (1.68%) Umbraco
5 8 (1.49%) CMS
5 8 (1.49%) Elasticsearch
6 6 (1.12%) Drupal
6 6 (1.12%) WordPress
7 5 (0.93%) Oracle Service Bus
7 5 (0.93%) Oracle SOA Suite
7 5 (0.93%) SharePoint 2013
7 5 (0.93%) WebSphere
8 4 (0.75%) Apache
9 3 (0.56%) WebLogic
10 2 (0.37%) Sitecore CMS
11 1 (0.19%) GlassFish
11 1 (0.19%) nginx
11 1 (0.19%) SharePoint 2010
Applications
1 18 (3.36%) Photoshop
2 7 (1.31%) Chatbot
2 7 (1.31%) Microsoft Project
3 5 (0.93%) Microsoft Excel
4 3 (0.56%) GIMP
4 3 (0.56%) Microsoft Office
5 2 (0.37%) Adobe Creative Suite
6 1 (0.19%) Adobe Illustrator
6 1 (0.19%) Microsoft PowerPoint
Business Applications
1 23 (4.29%) Dynamics CRM
2 17 (3.17%) Magento
3 3 (0.56%) Dynamics NAV
3 3 (0.56%) Salesforce.com CRM
4 2 (0.37%) SAP S/4HANA
4 2 (0.37%) WebTrends
5 1 (0.19%) Dynamics AX
5 1 (0.19%) JDE OneWorld
5 1 (0.19%) NetSuite
Cloud Services
1 62 (11.57%) Amazon AWS
2 48 (8.96%) Microsoft Azure
3 47 (8.77%) SaaS
4 14 (2.61%) AWS Lambda
4 14 (2.61%) Office 365
4 14 (2.61%) Serverless
5 11 (2.05%) Amazon EC2
5 11 (2.05%) Dynamics 365
6 9 (1.68%) IaaS
6 9 (1.68%) PaaS
7 8 (1.49%) Amazon CloudWatch
7 8 (1.49%) GitHub
8 7 (1.31%) npm
9 5 (0.93%) Google Analytics
10 4 (0.75%) AWS CloudFormation
11 1 (0.19%) Apigee
11 1 (0.19%) Cloud Computing
Communications & Networking
1 23 (4.29%) HTTP
2 13 (2.43%) TCP/IP
3 12 (2.24%) Internet
4 6 (1.12%) SMS
5 5 (0.93%) SSL
6 4 (0.75%) Firewall
6 4 (0.75%) VPN
7 1 (0.19%) DNS
7 1 (0.19%) Extranet
7 1 (0.19%) Intranet
7 1 (0.19%) SMTP
Database & Business Intelligence
1 126 (23.51%) SQL Server
2 47 (8.77%) MySQL
3 31 (5.78%) SQL Server Reporting Services
4 26 (4.85%) MongoDB
5 24 (4.48%) Relational Database
6 17 (3.17%) PostgreSQL
6 17 (3.17%) Redis
7 14 (2.61%) Amazon DynamoDB
8 11 (2.05%) NoSQL
9 10 (1.87%) QlikView
9 10 (1.87%) SQL Server Integration Services
10 7 (1.31%) SQL Server 2008
11 6 (1.12%) Oracle Database
12 5 (0.93%) Oracle Database 12c
13 4 (0.75%) SQL Server Analysis Services
14 3 (0.56%) Crystal Reports
14 3 (0.56%) MS Access
14 3 (0.56%) SQL Server 2014
14 3 (0.56%) SQL Server 2016
14 3 (0.56%) SQLite
Development Applications
1 79 (14.74%) Git (software)
2 55 (10.26%) Visual Studio
3 37 (6.90%) NUnit
4 30 (5.60%) Team Foundation Server
5 28 (5.22%) Atlassian Bamboo
6 22 (4.10%) gulp
6 22 (4.10%) Octopus Deploy
7 20 (3.73%) Selenium
8 18 (3.36%) Jenkins
8 18 (3.36%) Moq
8 18 (3.36%) Subversion
8 18 (3.36%) WebDriver
9 15 (2.80%) JIRA
10 13 (2.43%) Appium
11 10 (1.87%) TeamCity
11 10 (1.87%) webpack
12 9 (1.68%) StyleCop
13 7 (1.31%) Gradle
13 7 (1.31%) Karma Test Runner
14 6 (1.12%) Xcode
General
1 46 (8.58%) Finance
2 33 (6.16%) Retail
3 23 (4.29%) Pharmaceutical
4 13 (2.43%) Telecoms
5 10 (1.87%) Games
6 7 (1.31%) Marketing
7 6 (1.12%) Legal
8 5 (0.93%) Back Office
9 3 (0.56%) Automotive
9 3 (0.56%) French Language
10 2 (0.37%) Banking
10 2 (0.37%) Publishing
11 1 (0.19%) Advertising
11 1 (0.19%) German Language
11 1 (0.19%) Law
11 1 (0.19%) Manufacturing
11 1 (0.19%) Multimedia
Job Titles
1 415 (77.43%) Developer
2 121 (22.57%) .NET Developer
3 114 (21.27%) C# Developer
4 97 (18.10%) Full Stack Developer
5 66 (12.31%) C# .NET Developer
6 62 (11.57%) Senior Developer
7 57 (10.63%) JavaScript Developer
8 55 (10.26%) Front End Developer (Client-Side Developer)
8 55 (10.26%) Software Developer
9 41 (7.65%) ASP.NET Developer
10 38 (7.09%) Java Developer
11 32 (5.97%) C# ASP.NET Developer
11 32 (5.97%) Software Engineer
12 22 (4.10%) Junior
12 22 (4.10%) Web Developer
13 21 (3.92%) C# Software Developer
14 19 (3.54%) .NET Software Developer
15 17 (3.17%) Magento Developer
15 17 (3.17%) PHP Developer
16 16 (2.99%) ASP.NET MVC Developer
Libraries, Frameworks & Software Standards
1 380 (70.90%) HTML
2 358 (66.79%) CSS
3 262 (48.88%) .NET
4 189 (35.26%) AngularJS
5 167 (31.16%) ASP.NET
6 123 (22.95%) jQuery
7 112 (20.90%) React
8 95 (17.72%) HTML5
9 89 (16.60%) Web Services
10 87 (16.23%) XML
11 72 (13.43%) Node.js
12 71 (13.25%) RESTful
13 64 (11.94%) ASP.NET MVC
14 60 (11.19%) .NET Framework
15 54 (10.07%) JSON
16 50 (9.33%) CSS3
17 44 (8.21%) KnockoutJS
18 43 (8.02%) Sass
18 43 (8.02%) Twitter Bootstrap
19 38 (7.09%) Vue.js
Miscellaneous
1 91 (16.98%) User Experience
2 40 (7.46%) Analytical Skills
3 38 (7.09%) Greenfield Project
4 24 (4.48%) Enterprise Software
5 19 (3.54%) Mobile App
6 14 (2.61%) Fintech
7 10 (1.87%) Robotics
8 6 (1.12%) Self-Motivation
9 4 (0.75%) Blog
9 4 (0.75%) iPhone
10 3 (0.56%) Data Structures
11 2 (0.37%) Driving Licence
11 2 (0.37%) N-Tier
11 2 (0.37%) Private Cloud
11 2 (0.37%) Social Network
12 1 (0.19%) Digital TV
12 1 (0.19%) Social Media
12 1 (0.19%) Xbox
Operating Systems
1 37 (6.90%) Windows
2 18 (3.36%) Linux
3 15 (2.80%) Android
3 15 (2.80%) Windows Server
4 8 (1.49%) Apple iOS
5 6 (1.12%) Ubuntu
6 5 (0.93%) CentOS
7 4 (0.75%) Unix
7 4 (0.75%) Windows 10
7 4 (0.75%) Windows 8
7 4 (0.75%) Windows Phone
7 4 (0.75%) Windows Server 2012
8 3 (0.56%) Red Hat Enterprise Linux
9 1 (0.19%) Debian
9 1 (0.19%) Windows Server 2008
Processes & Methodologies
1 262 (48.88%) Agile Software Development
2 145 (27.05%) MVC
3 128 (23.88%) TDD
4 122 (22.76%) Scrum
5 115 (21.46%) Web Development
6 88 (16.42%) OO
7 73 (13.62%) Software Engineering
8 72 (13.43%) Unit Testing
9 71 (13.25%) Front End Development
10 58 (10.82%) Problem-Solving
11 51 (9.51%) DevOps
12 48 (8.96%) Test Automation
13 46 (8.58%) Workflow
14 44 (8.21%) Kanban
15 43 (8.02%) Continuous Integration
16 37 (6.90%) OOP
17 36 (6.72%) Computer Science
17 36 (6.72%) E-Commerce
17 36 (6.72%) Mentoring
17 36 (6.72%) SDLC
Programming Languages
1 264 (49.25%) C#
2 161 (30.04%) SQL
3 141 (26.31%) Java
4 69 (12.87%) TypeScript
5 67 (12.50%) PHP
6 59 (11.01%) T-SQL
7 40 (7.46%) Python
8 39 (7.28%) C++
9 30 (5.60%) Ruby
10 25 (4.66%) ES6
11 23 (4.29%) C
12 18 (3.36%) Java 8
12 18 (3.36%) VB.NET
13 16 (2.99%) Apex Code
14 14 (2.61%) PowerShell
15 12 (2.24%) Scala
16 10 (1.87%) PL/SQL
17 9 (1.68%) VBScript
17 9 (1.68%) XAML
18 7 (1.31%) VB
Qualifications
1 36 (6.72%) Degree
2 15 (2.80%) Microsoft Certification
3 14 (2.61%) HND
4 10 (1.87%) Computer Science Degree
4 10 (1.87%) Postgraduate
5 7 (1.31%) MCSD
6 5 (0.93%) Security Cleared
7 4 (0.75%) ISEB
7 4 (0.75%) Numerate Degree
8 3 (0.56%) ISTQB
8 3 (0.56%) SC Cleared
9 2 (0.37%) ISTQB Foundation Certification
9 2 (0.37%) PhD
10 1 (0.19%) CISM
10 1 (0.19%) CISSP
Quality Assurance & Compliance
1 30 (5.60%) QA
2 5 (0.93%) WAI
3 3 (0.56%) GDPR
4 2 (0.37%) HL7
5 1 (0.19%) ISO/IEC 27001
System Software
1 32 (5.97%) Docker
2 11 (2.05%) VMware Infrastructure
3 9 (1.68%) vSphere
4 7 (1.31%) Hyper-V
4 7 (1.31%) VirtualBox
5 5 (0.93%) Active Directory
6 4 (0.75%) iptables
6 4 (0.75%) Samba
6 4 (0.75%) VMware ESXi
Systems Management
1 9 (1.68%) Kubernetes
2 8 (1.49%) Ansible
2 8 (1.49%) Business Desktop Deployment
2 8 (1.49%) SCOM
2 8 (1.49%) Terraform
3 6 (1.12%) Consul
3 6 (1.12%) Graphite
4 5 (0.93%) Nagios
5 2 (0.37%) Opscode Chef
6 1 (0.19%) Docker Swarm
6 1 (0.19%) Puppet
6 1 (0.19%) vCenter Server
6 1 (0.19%) vRealize
6 1 (0.19%) vRealize Orchestrator
Vendors
1 99 (18.47%) Microsoft
2 27 (5.04%) Oracle
3 26 (4.85%) VMware
4 22 (4.10%) Salesforce.com
5 19 (3.54%) Xamarin
6 10 (1.87%) Tableau
7 8 (1.49%) Demandware
7 8 (1.49%) Google
8 7 (1.31%) Red Hat
9 5 (0.93%) Adobe
9 5 (0.93%) Nintex
10 3 (0.56%) IBM
10 3 (0.56%) Optimizely
10 3 (0.56%) Zend
11 2 (0.37%) SAP
11 2 (0.37%) Sitecore
11 2 (0.37%) WooCommerce
11 2 (0.37%) XMPie
12 1 (0.19%) CyberArk
12 1 (0.19%) Sybase