Period
to 22 November 2017

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for WebSockets skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited WebSockets over the 6 months to 22 November 2017 with a comparison to the same period in the previous 2 years.

WebSockets
Central London > City of London
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 297 344 397
Rank change year-on-year +47 +53 +42
Permanent jobs citing WebSockets 27 6 22
As % of all permanent IT jobs advertised in the City of London 0.26% 0.051% 0.13%
As % of the Libraries, Frameworks & Software Standards category 0.66% 0.12% 0.36%
Number of salaries quoted 25 6 18
City of London median annual salary £62,500 £60,000 £70,000
Median salary % change year-on-year +4.17% -14.29% +30.23%
10th Percentile £37,500 £53,750 £42,500
90th Percentile £93,250 £66,250 £105,000
Central London median annual salary £67,500 £60,000 £70,000
% change year-on-year +12.50% -14.29% +30.23%

WebSockets is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
City of London
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 4106 4829 6113
As % of all permanent IT jobs advertised in the City of London 40.10% 41.32% 36.25%
Number of salaries quoted 3696 4459 5293
City of London median annual salary £62,500 £60,000 £57,500
Median salary % change year-on-year +4.17% +4.35% +4.55%
10th Percentile £40,000 £38,250 £36,250
90th Percentile £90,000 £87,500 £85,000
Central London median annual salary £60,000 £57,500 £57,500
% change year-on-year +4.35% - +4.55%

WebSockets
Job Vacancy Trend in the City of London

Job postings citing WebSockets as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for WebSockets in the City of London

WebSockets
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing WebSockets in the City of London.

Salary trend for WebSockets in the City of London

WebSockets
Salary Histogram in the City of London

The salary distribution of IT jobs citing WebSockets in the City of London over the 6 months to 22 November 2017.

Salary histogram for WebSockets in the City of London

For the 6 months to 22 November 2017, IT jobs citing WebSockets also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the City of London region with a requirement for WebSockets.

1 16 (59.26%) JavaScript
2 15 (55.56%) Agile Software Development
3 14 (51.85%) Node.js
4 12 (44.44%) CSS
5 11 (40.74%) Finance
6 10 (37.04%) HTML
7 9 (33.33%) AngularJS
7 9 (33.33%) RESTful
8 7 (25.93%) HTML5
8 7 (25.93%) Sass
8 7 (25.93%) SQL
8 7 (25.93%) Scrum
8 7 (25.93%) Front End Development
9 6 (22.22%) Java
9 6 (22.22%) C#
9 6 (22.22%) OOP
9 6 (22.22%) OO
9 6 (22.22%) Confluence
9 6 (22.22%) Amazon AWS
9 6 (22.22%) JIRA
9 6 (22.22%) Continuous Integration
9 6 (22.22%) Multithreading
10 5 (18.52%) Mathematics
10 5 (18.52%) jQuery
10 5 (18.52%) CSS3
10 5 (18.52%) Continuous Improvement
10 5 (18.52%) Backbone.js
10 5 (18.52%) Eclipse
10 5 (18.52%) Web Development
10 5 (18.52%) SDLC

WebSockets
Co-occurring IT Skills in the City of 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 6 (22.22%) Confluence
2 2 (7.41%) Elasticsearch
2 2 (7.41%) IIS
3 1 (3.70%) Apache
3 1 (3.70%) Apache Spark
3 1 (3.70%) Gunicorn
3 1 (3.70%) nginx
3 1 (3.70%) Tornado
3 1 (3.70%) uWSGI
Cloud Services
1 6 (22.22%) Amazon AWS
2 3 (11.11%) Microsoft Azure
3 2 (7.41%) IaaS
4 1 (3.70%) Cloud Computing
Communications & Networking
1 2 (7.41%) Intranet
Database & Business Intelligence
1 5 (18.52%) Relational Database
2 4 (14.81%) PostgreSQL
3 3 (11.11%) Infinispan
3 3 (11.11%) MySQL
4 2 (7.41%) SQL Server
5 1 (3.70%) Amazon DynamoDB
5 1 (3.70%) Apache Cassandra
5 1 (3.70%) Apache Hive
5 1 (3.70%) Hadoop
5 1 (3.70%) HBase
5 1 (3.70%) MongoDB
5 1 (3.70%) NoSQL
5 1 (3.70%) Redis
Development Applications
1 6 (22.22%) JIRA
2 5 (18.52%) Eclipse
3 4 (14.81%) Ant
3 4 (14.81%) Subversion
4 3 (11.11%) Git (software)
4 3 (11.11%) JUnit
4 3 (11.11%) Maven
5 2 (7.41%) FishEye
5 2 (7.41%) IntelliJ
5 2 (7.41%) PHPUnit
5 2 (7.41%) webpack
6 1 (3.70%) Babel
6 1 (3.70%) GitLab
6 1 (3.70%) Grunt
6 1 (3.70%) Hudson
6 1 (3.70%) Jenkins
6 1 (3.70%) TeamCity
6 1 (3.70%) Vagrant
General
1 11 (40.74%) Finance
2 4 (14.81%) Front Office
2 4 (14.81%) Retail
3 1 (3.70%) Games
Job Titles
1 21 (77.78%) Developer
2 7 (25.93%) Senior Developer
3 4 (14.81%) .NET Developer
3 4 (14.81%) Front End Developer (Client-Side Developer)
3 4 (14.81%) JavaScript Developer
4 3 (11.11%) Full Stack Developer
4 3 (11.11%) Java Developer
4 3 (11.11%) Python Developer
4 3 (11.11%) Senior .NET Developer
4 3 (11.11%) Senior Front-End Developer
5 2 (7.41%) MySQL Developer
5 2 (7.41%) PHP Developer
5 2 (7.41%) PHP MySQL Developer
5 2 (7.41%) Software Developer
5 2 (7.41%) Team Leader
6 1 (3.70%) Architect
6 1 (3.70%) Junior
6 1 (3.70%) Junior Developer
6 1 (3.70%) Lead Developer
6 1 (3.70%) Web Developer
Libraries, Frameworks & Software Standards
1 14 (51.85%) Node.js
2 12 (44.44%) CSS
3 10 (37.04%) HTML
4 9 (33.33%) AngularJS
4 9 (33.33%) RESTful
5 7 (25.93%) HTML5
5 7 (25.93%) Sass
6 5 (18.52%) Backbone.js
6 5 (18.52%) CSS3
6 5 (18.52%) jQuery
7 4 (14.81%) .NET
7 4 (14.81%) Handlebars
7 4 (14.81%) Underscore.js
7 4 (14.81%) Web Services
7 4 (14.81%) XHTML
8 3 (11.11%) EJB
8 3 (11.11%) JavaFX
8 3 (11.11%) JMS
8 3 (11.11%) React
8 3 (11.11%) Swing
Miscellaneous
1 4 (14.81%) Derivative
1 4 (14.81%) Greenfield Project
2 3 (11.11%) Algorithms
2 3 (11.11%) Client/Server
2 3 (11.11%) Data Structures
3 2 (7.41%) Analytical Skills
4 1 (3.70%) Hedge funds
4 1 (3.70%) Linux Command Line
4 1 (3.70%) Social Media
Operating Systems
1 4 (14.81%) Linux
Processes & Methodologies
1 15 (55.56%) Agile Software Development
2 7 (25.93%) Front End Development
2 7 (25.93%) Scrum
3 6 (22.22%) Continuous Integration
3 6 (22.22%) Multithreading
3 6 (22.22%) OO
3 6 (22.22%) OOP
4 5 (18.52%) Continuous Improvement
4 5 (18.52%) DevOps
4 5 (18.52%) Low Latency
4 5 (18.52%) Mathematics
4 5 (18.52%) SDLC
4 5 (18.52%) Web Development
5 4 (14.81%) Business Transformation
5 4 (14.81%) Open Source
5 4 (14.81%) Software Engineering
5 4 (14.81%) Test Automation
6 3 (11.11%) Analytics
6 3 (11.11%) MVC
6 3 (11.11%) TDD
Programming Languages
1 16 (59.26%) JavaScript
2 7 (25.93%) SQL
3 6 (22.22%) C#
3 6 (22.22%) Java
4 3 (11.11%) ES6
4 3 (11.11%) Python
4 3 (11.11%) TypeScript
5 2 (7.41%) C
5 2 (7.41%) C++
5 2 (7.41%) PHP
6 1 (3.70%) Scala
Qualifications
1 2 (7.41%) SC Cleared
1 2 (7.41%) Security Cleared
Quality Assurance & Compliance
1 3 (11.11%) QA
System Software
1 3 (11.11%) Docker
Systems Management
1 3 (11.11%) Kubernetes
2 2 (7.41%) Ansible
3 1 (3.70%) Docker Swarm
3 1 (3.70%) Kibana
3 1 (3.70%) logstash
Vendors
1 3 (11.11%) Red Hat