Period
to 17 August 2019

The following table provides summary statistics for contract job vacancies advertised in London 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 17 August 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)
England > London
6 months to
17 Aug 2019
Same period 2018 Same period 2017
Rank 166 154 243
Rank change year-on-year -12 +89 +126
Contract jobs citing ES6 669 835 467
As % of all contract IT jobs advertised in London 1.67% 1.82% 1.09%
As % of the Programming Languages category 3.54% 3.64% 2.29%
Number of daily rates quoted 528 676 375
London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +2.56%
10th Percentile £400 £400 £375
90th Percentile £700 £675 £650
England median daily rate £500 £500 £475
% change year-on-year - +5.26% -
Number of hourly rates quoted 3 0 1
London median hourly rate £35.00 - £51.00
England median hourly rate £35.00 - £51.00

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 London with a requirement for coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 18,900 22,934 20,434
As % of all contract IT jobs advertised in London 47.23% 49.99% 47.82%
Number of daily rates quoted 14,290 17,506 15,200
London median daily rate £525 £520 £500
Median daily rate % change year-on-year +0.96% +4.00% +11.11%
10th Percentile £363 £363 £331
90th Percentile £688 £675 £650
England median daily rate £475 £475 £450
% change year-on-year - +5.56% +5.88%
Number of hourly rates quoted 116 170 153
London median hourly rate £42.31 £39.00 £40.00
Median hourly rate % change year-on-year +8.47% -2.50% +46.08%
10th Percentile £20.60 £18.00 £17.30
90th Percentile £61.00 £62.63 £52.40
England median hourly rate £44.96 £42.00 £40.00
% change year-on-year +7.04% +5.00% +6.67%

ES6
Job Vacancy Trend in London

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

Job vacancy trend for ES6 in London

ES6
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for ES6 in London

ES6
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing ES6 in London over the 6 months to 17 August 2019.

Contractor daily rate histogram for ES6 in London

ES6
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing ES6 in London.

Contractor hourly rate trend for ES6 in London

ES6
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing ES6 within the London region over the 6 months to 17 August 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
Central London -14 137 £525 -4.55% 53
South London +48 35 £540 +20.00% 2
West London 0 11 £388 -24.29% 17
East London +9 10 £563 +46.10% 11
North London 0 3 £431 +7.81% 2
ES6
England

For the 6 months to 17 August 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 London region with a requirement for ES6.

1 595 (88.94%) JavaScript
2 389 (58.15%) Agile Software Development
3 358 (53.51%) React
4 346 (51.72%) HTML
5 334 (49.93%) CSS
6 284 (42.45%) Node.js
6 284 (42.45%) AngularJS
7 268 (40.06%) Redux
8 234 (34.98%) TypeScript
9 229 (34.23%) Front End Development
10 228 (34.08%) HTML5
11 208 (31.09%) TDD
12 185 (27.65%) Java
13 175 (26.16%) Sass
14 169 (25.26%) CSS3
15 157 (23.47%) Git (software)
16 137 (20.48%) Finance
17 129 (19.28%) webpack
18 121 (18.09%) Docker
19 119 (17.79%) Spring
19 119 (17.79%) Scrum
19 119 (17.79%) Greenfield Project
20 113 (16.89%) Microsoft Azure
20 113 (16.89%) Open Source
21 111 (16.59%) Amazon AWS
22 106 (15.84%) OO
23 105 (15.70%) Java 8
24 104 (15.55%) Jenkins
25 103 (15.40%) User Experience
26 100 (14.95%) BDD

ES6
Co-occurring IT Skills in London 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 47 (7.03%) Confluence
1 47 (7.03%) Elasticsearch
2 25 (3.74%) CMS
3 22 (3.29%) Magnolia
4 18 (2.69%) Apache
5 15 (2.24%) Adobe Experience Manager
6 6 (0.90%) Drupal
7 5 (0.75%) IIS
7 5 (0.75%) nginx
8 4 (0.60%) Umbraco
9 3 (0.45%) Apache Solr
9 3 (0.45%) ArcGIS
Applications
1 7 (1.05%) Photoshop
2 6 (0.90%) Adobe Illustrator
3 3 (0.45%) Chatbot
3 3 (0.45%) Sketch
4 1 (0.15%) GIMP
Business Applications
1 4 (0.60%) Magento
Cloud Services
1 113 (16.89%) Microsoft Azure
2 111 (16.59%) Amazon AWS
3 86 (12.86%) npm
4 71 (10.61%) GitHub
5 54 (8.07%) Serverless
6 35 (5.23%) AWS Lambda
7 32 (4.78%) Google Cloud Platform
8 21 (3.14%) Slack
8 21 (3.14%) Yarn
9 15 (2.24%) Heroku
9 15 (2.24%) OpenShift
10 14 (2.09%) SaaS
11 9 (1.35%) Amazon S3
12 8 (1.20%) Amazon SQS
13 7 (1.05%) AWS CloudFormation
13 7 (1.05%) Cloud Computing
14 3 (0.45%) Amazon ECS
14 3 (0.45%) Google Analytics
14 3 (0.45%) PaaS
15 2 (0.30%) Cloudflare
Communications & Networking
1 26 (3.89%) HTTP
2 10 (1.49%) TCP/IP
3 9 (1.35%) SSL
4 7 (1.05%) DNS
4 7 (1.05%) FTP
5 5 (0.75%) Reverse Proxy
6 3 (0.45%) Network Security
7 2 (0.30%) Unified Communications
8 1 (0.15%) Firewall
8 1 (0.15%) HTTPS
Database & Business Intelligence
1 59 (8.82%) MySQL
2 42 (6.28%) MongoDB
3 36 (5.38%) SQL Server
4 35 (5.23%) PostgreSQL
5 32 (4.78%) NoSQL
6 15 (2.24%) Blockchain
6 15 (2.24%) Redis
7 13 (1.94%) Big Data
8 11 (1.64%) Amazon DynamoDB
8 11 (1.64%) Apache Cassandra
8 11 (1.64%) Relational Database
9 7 (1.05%) Couchbase
10 5 (0.75%) Neo4j
11 2 (0.30%) Cosmos DB
11 2 (0.30%) Geospatial Data
11 2 (0.30%) Spatial Data
11 2 (0.30%) SQL Server 2014
12 1 (0.15%) Amazon Aurora
12 1 (0.15%) Amazon RDS
12 1 (0.15%) Oracle Database
Development Applications
1 157 (23.47%) Git (software)
2 129 (19.28%) webpack
3 104 (15.55%) Jenkins
4 89 (13.30%) Jasmine
5 77 (11.51%) gulp
6 70 (10.46%) Karma Test Runner
7 67 (10.01%) Maven
8 60 (8.97%) JIRA
9 59 (8.82%) Cucumber
10 58 (8.67%) Protractor
11 57 (8.52%) Grunt
12 53 (7.92%) Babel
13 51 (7.62%) Mocha
14 42 (6.28%) Selenium
15 28 (4.19%) Gradle
16 23 (3.44%) GitLab
17 22 (3.29%) SonarQube
18 19 (2.84%) PostCSS
19 18 (2.69%) JUnit
20 17 (2.54%) Sonatype Nexus
General
1 137 (20.48%) Finance
2 54 (8.07%) Banking
3 50 (7.47%) Retail
4 35 (5.23%) Marketing
5 24 (3.59%) Investment Banking
6 19 (2.84%) Front Office
7 13 (1.94%) Games
8 10 (1.49%) Pharmaceutical
9 9 (1.35%) Publishing
10 3 (0.45%) Aerospace
10 3 (0.45%) Retail Banking
10 3 (0.45%) Telecoms
11 2 (0.30%) Financial Institution
11 2 (0.30%) French Language
11 2 (0.30%) International Banking
11 2 (0.30%) Manufacturing
12 1 (0.15%) Automotive
12 1 (0.15%) Law
12 1 (0.15%) Legal
Job Titles
1 593 (88.64%) Developer
2 239 (35.72%) React Developer
3 179 (26.76%) Front End Developer (Client-Side Developer)
4 134 (20.03%) Full Stack Developer
5 131 (19.58%) JavaScript Developer
6 93 (13.90%) Angular Developer
7 85 (12.71%) Java Developer
8 66 (9.87%) Senior Developer
9 51 (7.62%) UI Developer
10 42 (6.28%) Java Developer - Fintech
11 40 (5.98%) Node.js Developer
12 25 (3.74%) Senior JavaScript Developer
13 23 (3.44%) Senior React Developer
14 18 (2.69%) JavaScript Engineer
15 17 (2.54%) Web Developer
16 12 (1.79%) Lead Developer
17 10 (1.49%) Senior UI Developer
17 10 (1.49%) Support Engineer
18 9 (1.35%) AWS Developer
18 9 (1.35%) Senior Full Stack Developer
Libraries, Frameworks & Software Standards
1 358 (53.51%) React
2 346 (51.72%) HTML
3 334 (49.93%) CSS
4 284 (42.45%) AngularJS
4 284 (42.45%) Node.js
5 268 (40.06%) Redux
6 228 (34.08%) HTML5
7 175 (26.16%) Sass
8 169 (25.26%) CSS3
9 119 (17.79%) Spring
10 71 (10.61%) RESTful
11 66 (9.87%) Twitter Bootstrap
12 65 (9.72%) Spring Boot
13 63 (9.42%) REST
14 57 (8.52%) Jest
15 55 (8.22%) Angular 2
15 55 (8.22%) Express
16 52 (7.77%) Web Services
17 46 (6.88%) NgRx
18 42 (6.28%) GraphQL
Miscellaneous
1 119 (17.79%) Greenfield Project
2 103 (15.40%) User Experience
3 47 (7.03%) Mobile App
4 25 (3.74%) Data Protection Act
4 25 (3.74%) Enterprise Software
5 16 (2.39%) Data Structures
5 16 (2.39%) NHS
6 14 (2.09%) Algorithms
7 13 (1.94%) Social Media
7 13 (1.94%) Virtual Team
8 10 (1.49%) Credit Risk
9 8 (1.20%) Analytical Skills
9 8 (1.20%) Derivative
10 5 (0.75%) Cloud Native
10 5 (0.75%) Self-Motivation
11 4 (0.60%) Blog
11 4 (0.60%) Equity Derivative
11 4 (0.60%) Foreign Exchange (FX)
11 4 (0.60%) Linux Command Line
11 4 (0.60%) Mobile Banking
Operating Systems
1 39 (5.83%) Linux
2 8 (1.20%) Windows
3 5 (0.75%) Apple iOS
4 3 (0.45%) Ubuntu
5 2 (0.30%) Android
5 2 (0.30%) Unix
6 1 (0.15%) VMS
Processes & Methodologies
1 389 (58.15%) Agile Software Development
2 229 (34.23%) Front End Development
3 208 (31.09%) TDD
4 119 (17.79%) Scrum
5 113 (16.89%) Open Source
6 106 (15.84%) OO
7 100 (14.95%) BDD
8 95 (14.20%) Microservices
9 68 (10.16%) Fintech
10 62 (9.27%) DevOps
11 59 (8.82%) Test Automation
12 57 (8.52%) Continuous Delivery
13 49 (7.32%) SDLC
14 48 (7.17%) Web Development
15 47 (7.03%) Pair Programming
16 43 (6.43%) Unit Testing
17 42 (6.28%) Open Source Development
18 39 (5.83%) OOP
18 39 (5.83%) Software Engineering
19 36 (5.38%) Mentoring
Programming Languages
1 595 (88.94%) JavaScript
2 234 (34.98%) TypeScript
3 185 (27.65%) Java
4 105 (15.70%) Java 8
5 90 (13.45%) ES7
6 68 (10.16%) SQL
7 49 (7.32%) Python
8 36 (5.38%) C#
9 19 (2.84%) Go
9 19 (2.84%) Ruby
10 12 (1.79%) PHP
10 12 (1.79%) Scala
11 6 (0.90%) Java 9
11 6 (0.90%) JSX
12 5 (0.75%) Bash Shell
12 5 (0.75%) ES8
12 5 (0.75%) PHP 7
13 4 (0.60%) C++
13 4 (0.60%) PowerShell
13 4 (0.60%) VBA
Qualifications
1 15 (2.24%) Security Cleared
2 11 (1.64%) Degree
3 10 (1.49%) SC Cleared
4 6 (0.90%) Computer Science Degree
5 4 (0.60%) BPSS Clearance
6 3 (0.45%) BC Cleared
6 3 (0.45%) CHECK Team Member
7 1 (0.15%) Master's Degree
Quality Assurance & Compliance
1 23 (3.44%) QA
2 3 (0.45%) Disclosure Scotland
3 1 (0.15%) WAI
System Software
1 121 (18.09%) Docker
2 1 (0.15%) Virtual Servers
Systems Management
1 52 (7.77%) Kubernetes
2 43 (6.43%) Ansible
3 27 (4.04%) Terraform
4 12 (1.79%) Puppet
5 7 (1.05%) Docker Swarm
6 6 (0.90%) Marathon
6 6 (0.90%) Mesos
7 5 (0.75%) Hadoop YARN
8 3 (0.45%) Kibana
8 3 (0.45%) logstash
9 2 (0.30%) Sysdig
10 1 (0.15%) Grafana
10 1 (0.15%) Pingdom
10 1 (0.15%) Rsyslog
Vendors
1 23 (3.44%) Adobe
2 13 (1.94%) Google
3 12 (1.79%) Atlassian
4 11 (1.64%) Microsoft
5 8 (1.20%) Optimizely
6 5 (0.75%) Twitter
7 4 (0.60%) MuleSoft
7 4 (0.60%) New Relic
8 3 (0.45%) Cypress Semiconductor
8 3 (0.45%) ESRI
8 3 (0.45%) Facebook
8 3 (0.45%) Oracle
8 3 (0.45%) Sitecore
9 2 (0.30%) ForgeRock
9 2 (0.30%) hybris
9 2 (0.30%) Instagram
9 2 (0.30%) Roku
10 1 (0.15%) ION Trading
10 1 (0.15%) StreamSets