Period
to 19 September 2018

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Yarn skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Yarn over the 6 months to 19 September 2018 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.

Yarn Package Manager
England > London
6 months to
19 Sep 2018
Same period 2017 Same period 2016
Rank 584 594 -
Rank change year-on-year +10 - -
Contract jobs citing Yarn 29 31 0
As % of all contract IT jobs advertised in London 0.063% 0.070% -
As % of the Cloud Services category 0.25% 0.41% -
Number of daily rates quoted 18 31 0
London median daily rate £546 £525 -
Median daily rate % change year-on-year +4.05% - -
England median daily rate £513 £519 -
% change year-on-year -1.20% - -
Number of hourly rates quoted 1 0 0
London median hourly rate £150.00 - -
England median hourly rate £150.00 - -

Yarn is in the Cloud Services 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 cloud computing skills.

All Cloud Skills
London
Contract vacancies with a requirement for cloud computing skills 11,402 7,617 5,834
As % of all contract IT jobs advertised in London 24.80% 17.22% 13.05%
Number of daily rates quoted 8,373 5,581 4,299
London median daily rate £513 £500 £475
Median daily rate % change year-on-year +2.50% +5.26% +11.76%
10th Percentile £325 £313 £300
90th Percentile £675 £638 £625
England median daily rate £486 £475 £450
% change year-on-year +2.21% +5.56% +9.09%
Number of hourly rates quoted 80 71 59
London median hourly rate £20.25 £21.30 £23.50
Median hourly rate % change year-on-year -4.93% -9.36% +6.82%
10th Percentile £13.00 £11.25 £14.41
90th Percentile £87.75 £165.00 £56.87
England median hourly rate £19.00 £20.71 £19.00
% change year-on-year -8.23% +8.97% -17.39%

Yarn
Job Vacancy Trend in London

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

Job vacancy trend for Yarn in London

Yarn
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Yarn in London

Yarn
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Yarn in London over the 6 months to 19 September 2018.

Contractor daily rate histogram for Yarn in London

Yarn
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 Yarn within the London region over the 6 months to 19 September 2018. 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 -22 7 £450 -14.29% 2
Yarn
England

For the 6 months to 19 September 2018, IT contractor jobs citing Yarn 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 Yarn.

1 25 (86.21%) npm
2 22 (75.86%) React
3 21 (72.41%) JavaScript
4 18 (62.07%) webpack
5 17 (58.62%) Git (software)
6 16 (55.17%) Redux
7 12 (41.38%) Babel
7 12 (41.38%) RESTful
8 10 (34.48%) Node.js
8 10 (34.48%) Finance
8 10 (34.48%) HTML
8 10 (34.48%) Python
9 9 (31.03%) CSS
9 9 (31.03%) Agile Software Development
9 9 (31.03%) User Experience
10 8 (27.59%) Amazon AWS
11 7 (24.14%) Test Automation
11 7 (24.14%) TypeScript
11 7 (24.14%) Continuous Integration
11 7 (24.14%) Continuous Delivery
11 7 (24.14%) ES6
11 7 (24.14%) Front End Development
12 6 (20.69%) Microservices
12 6 (20.69%) Vue.js
12 6 (20.69%) Greenfield Project
12 6 (20.69%) Jest
12 6 (20.69%) Unit Testing
12 6 (20.69%) TDD
12 6 (20.69%) SQL
12 6 (20.69%) Express

Yarn
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 5 (17.24%) Elasticsearch
2 2 (6.90%) Apache Spark
3 1 (3.45%) Apache Solr
3 1 (3.45%) OpenStack
3 1 (3.45%) Tomcat
Applications
1 2 (6.90%) Chatbot
Cloud Services
1 25 (86.21%) npm
2 8 (27.59%) Amazon AWS
3 5 (17.24%) Google Cloud Platform
4 4 (13.79%) Microsoft Azure
5 2 (6.90%) Dialogflow
5 2 (6.90%) GitHub
6 1 (3.45%) Cloud Computing
6 1 (3.45%) Heroku
6 1 (3.45%) OpenShift
6 1 (3.45%) Serverless
6 1 (3.45%) Slack
Communications & Networking
1 1 (3.45%) HTTP
1 1 (3.45%) Reverse Proxy
Database & Business Intelligence
1 5 (17.24%) NoSQL
2 3 (10.34%) MongoDB
3 2 (6.90%) Big Data
3 2 (6.90%) SQL Server
3 2 (6.90%) SQL Server 2014
4 1 (3.45%) Amazon Redshift
4 1 (3.45%) Apache Cassandra
4 1 (3.45%) Apache Hive
4 1 (3.45%) Hadoop
4 1 (3.45%) HBase
4 1 (3.45%) PostgreSQL
4 1 (3.45%) Redis
4 1 (3.45%) Relational Database
4 1 (3.45%) Sqoop
Development Applications
1 18 (62.07%) webpack
2 17 (58.62%) Git (software)
3 12 (41.38%) Babel
4 4 (13.79%) CircleCI
4 4 (13.79%) gulp
4 4 (13.79%) Jenkins
5 2 (6.90%) Bower
5 2 (6.90%) Grunt
5 2 (6.90%) JUnit
5 2 (6.90%) Maven
5 2 (6.90%) TeamCity
6 1 (3.45%) GitLab
6 1 (3.45%) Jasmine
6 1 (3.45%) JIRA
6 1 (3.45%) Mocha
General
1 10 (34.48%) Finance
2 2 (6.90%) Banking
2 2 (6.90%) Front Office
3 1 (3.45%) Music Industry
Job Titles
1 17 (58.62%) Developer
2 7 (24.14%) JavaScript Developer
3 6 (20.69%) Front End Developer (Client-Side Developer)
3 6 (20.69%) React Developer
4 5 (17.24%) Full Stack Developer
5 4 (13.79%) Senior Developer
6 2 (6.90%) E-Commerce Developer
6 2 (6.90%) Java Developer
6 2 (6.90%) Python Developer
6 2 (6.90%) Senior JavaScript Developer
6 2 (6.90%) Senior React Developer
6 2 (6.90%) Software Engineer
6 2 (6.90%) UI Engineer
7 1 (3.45%) Angular Developer
7 1 (3.45%) Backend Developer
7 1 (3.45%) Big Data Developer
7 1 (3.45%) Full Stack Web Developer
7 1 (3.45%) Node.js Developer
7 1 (3.45%) Senior Big Data Developer
7 1 (3.45%) Senior Front-End Developer
Libraries, Frameworks & Software Standards
1 22 (75.86%) React
2 16 (55.17%) Redux
3 12 (41.38%) RESTful
4 10 (34.48%) HTML
4 10 (34.48%) Node.js
5 9 (31.03%) CSS
6 6 (20.69%) Express
6 6 (20.69%) Jest
6 6 (20.69%) REST
6 6 (20.69%) Vue.js
7 5 (17.24%) AngularJS
7 5 (17.24%) DOM
7 5 (17.24%) HTML5
8 4 (13.79%) Kafka
8 4 (13.79%) OAuth
8 4 (13.79%) Sass
8 4 (13.79%) Spring
8 4 (13.79%) Spring Boot
9 3 (10.34%) GraphQL
9 3 (10.34%) OAuth2
Miscellaneous
1 9 (31.03%) User Experience
2 6 (20.69%) Greenfield Project
3 1 (3.45%) Data Structures
3 1 (3.45%) Equities
3 1 (3.45%) Fixed Income
3 1 (3.45%) Foreign Exchange (FX)
3 1 (3.45%) Hedge funds
3 1 (3.45%) Linux Command Line
3 1 (3.45%) Mobile App
3 1 (3.45%) Renewable Energy
Operating Systems
1 5 (17.24%) Linux
2 1 (3.45%) Android
2 1 (3.45%) Apple iOS
2 1 (3.45%) Unix
2 1 (3.45%) Windows
Processes & Methodologies
1 9 (31.03%) Agile Software Development
2 7 (24.14%) Continuous Delivery
2 7 (24.14%) Continuous Integration
2 7 (24.14%) Front End Development
2 7 (24.14%) Test Automation
3 6 (20.69%) Microservices
3 6 (20.69%) TDD
3 6 (20.69%) Unit Testing
4 5 (17.24%) Analytics
4 5 (17.24%) Data Analytics
4 5 (17.24%) DOM Manipulation/Scripting
4 5 (17.24%) Regulatory Compliance
5 4 (13.79%) E-Commerce
5 4 (13.79%) Problem-Solving
6 3 (10.34%) Artificial Intelligence
6 3 (10.34%) Functional Programming
6 3 (10.34%) OO
6 3 (10.34%) Software Engineering
7 2 (6.90%) Garbage Collection
7 2 (6.90%) Webhook
Programming Languages
1 21 (72.41%) JavaScript
2 10 (34.48%) Python
3 7 (24.14%) ES6
3 7 (24.14%) TypeScript
4 6 (20.69%) SQL
5 3 (10.34%) Java
6 2 (6.90%) C#
6 2 (6.90%) ES8
6 2 (6.90%) Java 8
7 1 (3.45%) Bash Shell
7 1 (3.45%) Shell Script
Quality Assurance & Compliance
1 2 (6.90%) GCP
System Software
1 4 (13.79%) Docker
2 1 (3.45%) Apache ZooKeeper
2 1 (3.45%) Ceph
2 1 (3.45%) HDFS
Systems Management
1 3 (10.34%) Kubernetes
2 2 (6.90%) Hadoop YARN
3 1 (3.45%) Ansible
3 1 (3.45%) Docker Swarm
3 1 (3.45%) Grafana
3 1 (3.45%) HAProxy
3 1 (3.45%) Oozie
3 1 (3.45%) Prometheus
Vendors
1 4 (13.79%) Google
2 1 (3.45%) Cognizant
2 1 (3.45%) Facebook
2 1 (3.45%) FXall
2 1 (3.45%) Microsoft
2 1 (3.45%) Reuters
2 1 (3.45%) Salesforce.com