Period
to 19 November 2017

The following table provides summary statistics for contract job vacancies advertised in Welwyn Garden City 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 19 November 2017 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)
Hertfordshire > Welwyn Garden City
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 17 19 7
Rank change year-on-year +2 -12 +10
Contract jobs citing JavaScript 5 5 16
As % of all contract IT jobs advertised in Welwyn Garden City 3.85% 3.21% 12.80%
As % of the Programming Languages category 13.51% 10.42% 27.12%
Number of daily rates quoted 4 1 5
Welwyn Garden City median daily rate £525 £550 £413
Median daily rate % change year-on-year -4.55% +33.33% +10.74%
10th Percentile £513 £525 £373
90th Percentile £538 £575 £425
Hertfordshire median daily rate £400 £375 £363
% change year-on-year +6.67% +3.45% -3.33%
Number of hourly rates quoted 0 0 0
Welwyn Garden City median hourly rate - - -
Hertfordshire median hourly rate £15.00 £45.00 -
% change year-on-year -66.67% - -

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 Welwyn Garden City with a requirement for coding skills.

All Programming Languages
Welwyn Garden City
Contract vacancies with a requirement for coding skills 37 48 59
As % of all contract IT jobs advertised in Welwyn Garden City 28.46% 30.77% 47.20%
Number of daily rates quoted 22 32 32
Welwyn Garden City median daily rate £363 £308 £325
Median daily rate % change year-on-year +17.89% -5.38% -4.41%
10th Percentile £213 £189 £278
90th Percentile £538 £690 £565
Hertfordshire median daily rate £425 £385 £375
% change year-on-year +10.39% +2.67% +7.14%
Number of hourly rates quoted 0 0 0
Welwyn Garden City median hourly rate - - -
Hertfordshire median hourly rate £17.15 £49.75 £33.25
% change year-on-year -65.52% +49.62% +66.25%

JavaScript
Job Vacancy Trend in Welwyn Garden City

Job postings citing JavaScript as a percentage of all IT jobs advertised in Welwyn Garden City.

Job vacancy trend for JavaScript in Welwyn Garden City

JavaScript
Contractor Daily Rate Trend in Welwyn Garden City

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

Contractor daily rate trend for JavaScript in Welwyn Garden City

JavaScript
Contractor Hourly Rate Trend in Welwyn Garden City

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

Contractor hourly rate trend for JavaScript in Welwyn Garden City

For the 6 months to 19 November 2017, IT contractor jobs citing JavaScript also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Welwyn Garden City region with a requirement for JavaScript.

1 4 (80.00%) HTML
1 4 (80.00%) Java
1 4 (80.00%) CSS
1 4 (80.00%) Web Services
1 4 (80.00%) Scrum
1 4 (80.00%) Agile Software Development
1 4 (80.00%) TDD
1 4 (80.00%) Kanban
1 4 (80.00%) Amazon AWS
2 3 (60.00%) Grunt
2 3 (60.00%) Play Framework
2 3 (60.00%) Web Application Development
2 3 (60.00%) AngularJS
2 3 (60.00%) Groovy
2 3 (60.00%) Git (software)
2 3 (60.00%) Test Automation
2 3 (60.00%) Domain-Driven Design
2 3 (60.00%) HTML5
2 3 (60.00%) BDD
2 3 (60.00%) MongoDB
2 3 (60.00%) Scalatra
2 3 (60.00%) New Relic
2 3 (60.00%) Microservices
2 3 (60.00%) React
2 3 (60.00%) Spring Boot
2 3 (60.00%) Front End Development
2 3 (60.00%) SOLID
2 3 (60.00%) Dropwizard
2 3 (60.00%) Hystrix
2 3 (60.00%) Pair Programming

JavaScript
Co-occurring IT Skills in Welwyn Garden City 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:

Cloud Services
1 4 (80.00%) Amazon AWS
2 1 (20.00%) Amazon EC2
2 1 (20.00%) Amazon SQS
Communications & Networking
1 1 (20.00%) Firewall
1 1 (20.00%) HTTP
1 1 (20.00%) Internet
1 1 (20.00%) SSL
Database & Business Intelligence
1 3 (60.00%) MongoDB
2 1 (20.00%) NoSQL
Development Applications
1 3 (60.00%) Git (software)
1 3 (60.00%) Grunt
1 3 (60.00%) gulp
1 3 (60.00%) IntelliJ
2 1 (20.00%) Jenkins
2 1 (20.00%) Maven
General
1 1 (20.00%) Retail
Job Titles
1 4 (80.00%) Developer
1 4 (80.00%) Java Developer
2 1 (20.00%) Agile Developer
2 1 (20.00%) Agile Java Developer
2 1 (20.00%) AWS Developer
2 1 (20.00%) Security Engineer
Libraries, Frameworks & Software Standards
1 4 (80.00%) CSS
1 4 (80.00%) HTML
1 4 (80.00%) Web Services
2 3 (60.00%) AngularJS
2 3 (60.00%) Dropwizard
2 3 (60.00%) HTML5
2 3 (60.00%) Hystrix
2 3 (60.00%) Play Framework
2 3 (60.00%) React
2 3 (60.00%) Scalatra
2 3 (60.00%) Spring
2 3 (60.00%) Spring Boot
3 1 (20.00%) J2EE
3 1 (20.00%) Regular Expression
Miscellaneous
1 1 (20.00%) Security Operations Centre
Operating Systems
1 1 (20.00%) Linux
1 1 (20.00%) Unix
1 1 (20.00%) Windows
1 1 (20.00%) Windows Server
Processes & Methodologies
1 4 (80.00%) Agile Software Development
1 4 (80.00%) Kanban
1 4 (80.00%) Scrum
1 4 (80.00%) TDD
2 3 (60.00%) BDD
2 3 (60.00%) Continuous Integration
2 3 (60.00%) Digital Transformation Programme
2 3 (60.00%) Domain-Driven Design
2 3 (60.00%) Front End Development
2 3 (60.00%) Microservices
2 3 (60.00%) MVC
2 3 (60.00%) Pair Programming
2 3 (60.00%) Refactoring
2 3 (60.00%) SOA
2 3 (60.00%) Software Engineering
2 3 (60.00%) SOLID
2 3 (60.00%) Test Automation
2 3 (60.00%) Web Application Development
2 3 (60.00%) Web Development
3 1 (20.00%) Data Loss Prevention
Programming Languages
1 4 (80.00%) Java
2 3 (60.00%) Groovy
3 1 (20.00%) Perl
3 1 (20.00%) Python
3 1 (20.00%) Ruby
3 1 (20.00%) Shell Script
3 1 (20.00%) SQL
Quality Assurance & Compliance
1 3 (60.00%) QA
System Software
1 1 (20.00%) Virtual Desktop
Systems Management
1 1 (20.00%) Symantec Endpoint Protection
Vendors
1 3 (60.00%) New Relic
2 1 (20.00%) EMC
2 1 (20.00%) FireEye
2 1 (20.00%) Intel
2 1 (20.00%) McAfee
2 1 (20.00%) Symantec