Period
to 20 January 2019

The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for ES6 skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited ES6 over the 6 months to 20 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.

ECMAScript 2015 (JavaScript ES2015, ES6)
East of England > Hertfordshire
6 months to
20 Jan 2019
Same period 2018 Same period 2017
Rank 88 94 -
Rank change year-on-year +6 - -
Contract jobs citing ES6 5 4 0
As % of all contract IT jobs advertised in Hertfordshire 0.35% 0.26% -
As % of the Programming Languages category 1.07% 0.68% -
Number of daily rates quoted 7 3 0
Hertfordshire median daily rate £500 £350 -
Median daily rate % change year-on-year +42.86% - -
East of England median daily rate £445 £350 £375
% change year-on-year +27.14% -6.67% -
Number of hourly rates quoted 0 0 0
Hertfordshire median hourly rate - - -
East of England median hourly rate - - -

ES6 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 469 585 525
As % of all contract IT jobs advertised in Hertfordshire 33.03% 38.36% 37.55%
Number of daily rates quoted 289 314 309
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 £539
East of England median daily rate £435 £415 £375
% change year-on-year +4.82% +10.67% -
Number of hourly rates quoted 19 16 34
Hertfordshire median hourly rate £45.00 £24.50 £46.25
Median hourly rate % change year-on-year +83.67% -47.03% +18.59%
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 £42.20
% change year-on-year +11.11% -4.03% +8.21%

ES6
Job Vacancy Trend in Hertfordshire

Job postings citing ES6 as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for ES6 in Hertfordshire

ES6
Contractor Daily Rate Trend in Hertfordshire

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing ES6 in Hertfordshire.

Contractor daily rate trend for ES6 in Hertfordshire

ES6
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing ES6 in Hertfordshire over the 6 months to 20 January 2019.

Contractor daily rate histogram for ES6 in Hertfordshire

ES6
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 ES6 within the Hertfordshire region over the 6 months to 20 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 +9 1 £538 - 1
Welwyn Garden City - 1 £600 - 1
Berkhamsted - 1 £525 -
ES6
East of England

For the 6 months to 20 January 2019, IT contractor jobs citing ES6 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 ES6.

1 5 (100.00%) JavaScript
1 5 (100.00%) CSS
1 5 (100.00%) HTML
2 3 (60.00%) Agile Software Development
2 3 (60.00%) TDD
2 3 (60.00%) HTML5
3 2 (40.00%) BDD
3 2 (40.00%) React
3 2 (40.00%) Redux
3 2 (40.00%) Node.js
3 2 (40.00%) REST
3 2 (40.00%) Spring
3 2 (40.00%) Software Engineering
3 2 (40.00%) RESTful
3 2 (40.00%) jQuery
3 2 (40.00%) gulp
4 1 (20.00%) Front End Development
4 1 (20.00%) Gatling
4 1 (20.00%) Dropwizard
4 1 (20.00%) WireMock
4 1 (20.00%) Unit Testing
4 1 (20.00%) OAuth
4 1 (20.00%) Guice
4 1 (20.00%) OWASP
4 1 (20.00%) Git (software)
4 1 (20.00%) Web Accessibility
4 1 (20.00%) Domain-Driven Design
4 1 (20.00%) Amazon AWS
4 1 (20.00%) Open Source
4 1 (20.00%) JSON

ES6
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 1 (20.00%) Elasticsearch
Cloud Services
1 1 (20.00%) Amazon AWS
1 1 (20.00%) Heroku
1 1 (20.00%) npm
Communications & Networking
1 1 (20.00%) DNS
1 1 (20.00%) FTP
1 1 (20.00%) HTTP
1 1 (20.00%) SSL
1 1 (20.00%) TCP/IP
Database & Business Intelligence
1 1 (20.00%) MongoDB
1 1 (20.00%) PostgreSQL
Development Applications
1 2 (40.00%) gulp
2 1 (20.00%) Gatling
2 1 (20.00%) Geb
2 1 (20.00%) Git (software)
2 1 (20.00%) GitLab
2 1 (20.00%) Gradle
2 1 (20.00%) Jasmine
2 1 (20.00%) Spock
2 1 (20.00%) webpack
Job Titles
1 5 (100.00%) Developer
2 2 (40.00%) JavaScript Developer
3 1 (20.00%) Agile Developer
3 1 (20.00%) Agile Java Developer
3 1 (20.00%) Front End Developer (Client-Side Developer)
3 1 (20.00%) Java Developer
3 1 (20.00%) UI Developer
Libraries, Frameworks & Software Standards
1 5 (100.00%) CSS
1 5 (100.00%) HTML
2 3 (60.00%) HTML5
3 2 (40.00%) jQuery
3 2 (40.00%) Node.js
3 2 (40.00%) React
3 2 (40.00%) Redux
3 2 (40.00%) REST
3 2 (40.00%) RESTful
3 2 (40.00%) Spring
4 1 (20.00%) AngularJS
4 1 (20.00%) Backbone.js
4 1 (20.00%) CSS3
4 1 (20.00%) Dropwizard
4 1 (20.00%) Ember.js
4 1 (20.00%) koa
4 1 (20.00%) Ratpack
4 1 (20.00%) Spring Boot
4 1 (20.00%) Underscore.js
4 1 (20.00%) WireMock
Operating Systems
1 1 (20.00%) Linux
Processes & Methodologies
1 3 (60.00%) Agile Software Development
1 3 (60.00%) TDD
2 2 (40.00%) BDD
2 2 (40.00%) Software Engineering
3 1 (20.00%) Adaptive Web Design
3 1 (20.00%) ATDD
3 1 (20.00%) DevOps
3 1 (20.00%) Digital Transformation Programme
3 1 (20.00%) Domain-Driven Design
3 1 (20.00%) Front End Development
3 1 (20.00%) Microservices
3 1 (20.00%) OO
3 1 (20.00%) Open Source
3 1 (20.00%) OWASP
3 1 (20.00%) Unit Testing
3 1 (20.00%) Web Accessibility
3 1 (20.00%) Web Design
Programming Languages
1 5 (100.00%) JavaScript
2 1 (20.00%) ES7
2 1 (20.00%) Java
2 1 (20.00%) Java 8
2 1 (20.00%) TypeScript
Quality Assurance & Compliance
1 1 (20.00%) QA
System Software
1 1 (20.00%) Docker
Systems Management
1 1 (20.00%) Docker Swarm