Period
to 23 January 2019

The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for JavaScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JavaScript over the 6 months to 23 January 2019 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

JavaScript (including ECMAScript)
East of England > Hertfordshire
6 months to
23 Jan 2019
Same period 2018 Same period 2017
Rank 15 17 24
Rank change year-on-year +2 +7 -13
Contract jobs citing JavaScript 106 123 96
As % of all contract IT jobs advertised in Hertfordshire 7.44% 7.94% 6.93%
As % of the Programming Languages category 22.55% 20.85% 18.53%
Number of daily rates quoted 60 89 45
Hertfordshire median daily rate £425 £400 £375
Median daily rate % change year-on-year +6.25% +6.67% +7.14%
10th Percentile £253 £313 £263
90th Percentile £538 £550 £530
East of England median daily rate £425 £375 £350
% change year-on-year +13.33% +7.14% -3.45%
Number of hourly rates quoted 1 1 1
Hertfordshire median hourly rate £17.25 £12.50 £45.00
Median hourly rate % change year-on-year +38.00% -72.22% -
East of England median hourly rate £25.17 £62.50 £32.50
% change year-on-year -59.74% +92.31% -23.53%

JavaScript is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Hertfordshire with a requirement for coding skills.

All Programming Languages
Hertfordshire
Contract vacancies with a requirement for coding skills 470 590 518
As % of all contract IT jobs advertised in Hertfordshire 32.98% 38.06% 37.40%
Number of daily rates quoted 287 317 310
Hertfordshire median daily rate £420 £425 £400
Median daily rate % change year-on-year -1.18% +6.25% +3.23%
10th Percentile £300 £300 £250
90th Percentile £556 £588 £538
East of England median daily rate £435 £418 £375
% change year-on-year +4.19% +11.33% -
Number of hourly rates quoted 19 16 33
Hertfordshire median hourly rate £45.00 £24.50 £45.00
Median hourly rate % change year-on-year +83.67% -45.56% +15.38%
10th Percentile £18.85 £10.63 £36.25
90th Percentile £52.50 £43.75 £53.75
East of England median hourly rate £45.00 £40.50 £42.00
% change year-on-year +11.11% -3.57% +7.69%

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
Contractor Daily Rate Trend in Hertfordshire

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing JavaScript in Hertfordshire.

Contractor daily rate trend for JavaScript in Hertfordshire

JavaScript
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing JavaScript in Hertfordshire over the 6 months to 23 January 2019.

Contractor daily rate histogram for JavaScript in Hertfordshire

JavaScript
Contractor Hourly Rate Trend in Hertfordshire

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing JavaScript in Hertfordshire.

Contractor hourly rate trend for JavaScript in Hertfordshire

JavaScript
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JavaScript within the Hertfordshire region over the 6 months to 23 January 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Watford +1 32 £425 - 22
Stevenage +9 20 - - 8
Welwyn Garden City +9 11 £538 +2.38% 5
Hatfield +5 10 £413 +3.13% 6
Rickmansworth -9 3 £400 +150.00% 1
Berkhamsted - 2 £525 - 1
St Albans +4 1 £300 -27.27% 11
Hertford +2 1 £350 -6.67% 1
Borehamwood 0 1 - - 2
Hemel Hempstead -5 1 £300 -11.11% 5
JavaScript
East of England

For the 6 months to 23 January 2019, IT contractor 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 contract job ads across the Hertfordshire region with a requirement for JavaScript.

1 59 (55.66%) CSS
2 54 (50.94%) .NET
3 53 (50.00%) C#
4 52 (49.06%) HTML
5 43 (40.57%) Agile Software Development
6 40 (37.74%) Visual Studio
7 38 (35.85%) Microsoft
8 33 (31.13%) Web Services
9 32 (30.19%) Java
10 30 (28.30%) ASP.NET
11 29 (27.36%) MVC
12 27 (25.47%) jQuery
13 26 (24.53%) Linux
14 25 (23.58%) Git (software)
14 25 (23.58%) REST
15 24 (22.64%) Node.js
15 24 (22.64%) Windows
16 23 (21.70%) Software Engineering
17 22 (20.75%) Scrum
18 21 (19.81%) Military
18 21 (19.81%) Degree
18 21 (19.81%) Eclipse
18 21 (19.81%) TCP/IP
19 20 (18.87%) Ethernet
19 20 (18.87%) C++
19 20 (18.87%) NetBeans
19 20 (18.87%) PowerShell
19 20 (18.87%) Qt
20 19 (17.92%) Mathematics
20 19 (17.92%) Aerospace

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 14 (13.21%) SharePoint
2 13 (12.26%) SharePoint 2013
3 7 (6.60%) CMS
4 4 (3.77%) Apache
4 4 (3.77%) IIS
5 2 (1.89%) Elasticsearch
5 2 (1.89%) nginx
5 2 (1.89%) NServiceBus
5 2 (1.89%) Sitecore CMS
5 2 (1.89%) WebSphere
6 1 (0.94%) Tomcat
6 1 (0.94%) WordPress
Applications
1 3 (2.83%) Photoshop
2 2 (1.89%) Microsoft Office
3 1 (0.94%) Adobe Creative Suite
3 1 (0.94%) Adobe Illustrator
Business Applications
1 11 (10.38%) Magento
2 5 (4.72%) Dynamics CRM
3 1 (0.94%) Dynamics AX
3 1 (0.94%) JDE OneWorld
3 1 (0.94%) NetSuite
Cloud Services
1 11 (10.38%) Office 365
2 6 (5.66%) Amazon AWS
2 6 (5.66%) Microsoft Azure
3 3 (2.83%) Dynamics 365
4 2 (1.89%) Adobe Creative Cloud
4 2 (1.89%) Google Analytics
5 1 (0.94%) Cloud Computing
5 1 (0.94%) Heroku
5 1 (0.94%) npm
5 1 (0.94%) SaaS
Communications & Networking
1 21 (19.81%) TCP/IP
2 20 (18.87%) Ethernet
3 4 (3.77%) Internet
4 3 (2.83%) Firewall
4 3 (2.83%) HTTP
5 1 (0.94%) DNS
5 1 (0.94%) FTP
5 1 (0.94%) SMS
5 1 (0.94%) SSL
Database & Business Intelligence
1 17 (16.04%) SQL Server
2 8 (7.55%) MySQL
3 6 (5.66%) Relational Database
4 5 (4.72%) MongoDB
5 3 (2.83%) RDBMS
5 3 (2.83%) SQL Server Integration Services
5 3 (2.83%) Sybase ASE
6 1 (0.94%) Endeca
6 1 (0.94%) NoSQL
6 1 (0.94%) PostgreSQL
Development Applications
1 40 (37.74%) Visual Studio
2 25 (23.58%) Git (software)
3 21 (19.81%) Eclipse
4 20 (18.87%) NetBeans
5 11 (10.38%) Team Foundation Server
5 11 (10.38%) Visual Studio Code
6 6 (5.66%) Subversion
7 5 (4.72%) gulp
8 4 (3.77%) Grunt
9 3 (2.83%) Jasmine
10 2 (1.89%) Bower
10 2 (1.89%) IntelliJ
10 2 (1.89%) Karma Test Runner
10 2 (1.89%) Octopus Deploy
10 2 (1.89%) webpack
11 1 (0.94%) Gatling
11 1 (0.94%) Geb
11 1 (0.94%) GitLab
11 1 (0.94%) JUnit
11 1 (0.94%) Spock
General
1 21 (19.81%) Military
2 19 (17.92%) Aerospace
3 10 (9.43%) Law
4 5 (4.72%) Finance
4 5 (4.72%) Marketing
4 5 (4.72%) Retail
5 2 (1.89%) Multimedia
6 1 (0.94%) Advertising
6 1 (0.94%) Back Office
6 1 (0.94%) Games
Job Titles
1 70 (66.04%) Developer
2 17 (16.04%) .NET Developer
3 14 (13.21%) SharePoint Developer
4 10 (9.43%) Magento Developer
5 9 (8.49%) Java Developer
6 8 (7.55%) Front End Developer (Client-Side Developer)
7 6 (5.66%) ASP.NET Developer
7 6 (5.66%) Consultant
7 6 (5.66%) Full Stack Developer
8 5 (4.72%) Junior
8 5 (4.72%) Junior Developer
9 4 (3.77%) CRM Developer
9 4 (3.77%) Dynamics CRM Developer
9 4 (3.77%) Lead Developer
10 3 (2.83%) Senior Developer
10 3 (2.83%) Web Developer
11 2 (1.89%) JavaScript Developer
11 2 (1.89%) JSP Developer
11 2 (1.89%) Junior Web Developer
11 2 (1.89%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 59 (55.66%) CSS
2 54 (50.94%) .NET
3 52 (49.06%) HTML
4 33 (31.13%) Web Services
5 30 (28.30%) ASP.NET
6 27 (25.47%) jQuery
7 25 (23.58%) REST
8 24 (22.64%) Node.js
9 20 (18.87%) Qt
10 17 (16.04%) ActiveX
10 17 (16.04%) DirectX
10 17 (16.04%) HTML5
10 17 (16.04%) MFC
10 17 (16.04%) OpenGL
11 13 (12.26%) AngularJS
12 12 (11.32%) .NET Framework
12 12 (11.32%) ASP.NET Web API
13 11 (10.38%) CAML
13 11 (10.38%) XML
14 10 (9.43%) ASP.NET MVC
Miscellaneous
1 6 (5.66%) User Experience
2 4 (3.77%) Social Media
3 3 (2.83%) Greenfield Project
4 2 (1.89%) Analytical Skills
4 2 (1.89%) Vector Graphics
4 2 (1.89%) W3C
5 1 (0.94%) Algorithms
5 1 (0.94%) Data Structures
Operating Systems
1 26 (24.53%) Linux
2 24 (22.64%) Windows
3 3 (2.83%) Windows Server
4 1 (0.94%) CentOS
4 1 (0.94%) Ubuntu
4 1 (0.94%) Windows Server 2012
Processes & Methodologies
1 43 (40.57%) Agile Software Development
2 29 (27.36%) MVC
3 23 (21.70%) Software Engineering
4 22 (20.75%) Scrum
5 19 (17.92%) Mathematics
6 17 (16.04%) Workflow
7 14 (13.21%) E-Commerce
8 13 (12.26%) TDD
9 12 (11.32%) Front End Development
9 12 (11.32%) Web Development
10 10 (9.43%) OO
11 9 (8.49%) BDD
11 9 (8.49%) OO PHP
12 7 (6.60%) Analytics
12 7 (6.60%) Unit Testing
13 6 (5.66%) CRM
13 6 (5.66%) ERP
13 6 (5.66%) Migration
14 5 (4.72%) Domain-Driven Design
14 5 (4.72%) Web Accessibility
Programming Languages
1 53 (50.00%) C#
2 32 (30.19%) Java
3 20 (18.87%) C++
3 20 (18.87%) PowerShell
4 17 (16.04%) GLSL
4 17 (16.04%) HLSL
5 16 (15.09%) SQL
6 13 (12.26%) PHP
7 6 (5.66%) T-SQL
8 5 (4.72%) ES6
8 5 (4.72%) Java 8
9 4 (3.77%) Python
10 3 (2.83%) TypeScript
11 2 (1.89%) Groovy
11 2 (1.89%) R
12 1 (0.94%) ES7
12 1 (0.94%) Go
Qualifications
1 21 (19.81%) Degree
2 17 (16.04%) SC Cleared
2 17 (16.04%) Security Cleared
3 3 (2.83%) DBS Check
Quality Assurance & Compliance
1 5 (4.72%) QA
2 4 (3.77%) WCAG
System Software
1 7 (6.60%) vSphere
2 4 (3.77%) Docker
3 3 (2.83%) VMware NSX
Systems Management
1 7 (6.60%) vCenter Server
1 7 (6.60%) vRealize
1 7 (6.60%) vRealize Orchestrator
2 2 (1.89%) Docker Swarm
3 1 (0.94%) Kubernetes
Vendors
1 38 (35.85%) Microsoft
2 14 (13.21%) Nintex
3 10 (9.43%) Sony
4 9 (8.49%) Zend
5 7 (6.60%) VMware
6 5 (4.72%) Adobe
7 4 (3.77%) Google
7 4 (3.77%) hybris
8 3 (2.83%) Sybase
9 2 (1.89%) IBM
9 2 (1.89%) New Relic
9 2 (1.89%) Sitecore
10 1 (0.94%) Computacenter
10 1 (0.94%) Facebook
10 1 (0.94%) JD Edwards
10 1 (0.94%) Omniture
10 1 (0.94%) Tableau
10 1 (0.94%) Twitter
10 1 (0.94%) Xerox