Period
to 21 May 2018

The following table provides summary statistics for permanent job vacancies advertised in 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 21 May 2018 with a comparison to the same period in the previous 2 years.

WebSockets
England > London
6 months to
21 May 2018
Same period 2017 Same period 2016
Rank 516 591 720
Rank change year-on-year +75 +129 +104
Permanent jobs citing WebSockets 330 223 179
As % of all permanent IT jobs advertised in London 0.48% 0.33% 0.22%
As % of the Libraries, Frameworks & Software Standards category 1.18% 0.80% 0.54%
Number of salaries quoted 262 199 167
London median annual salary £75,000 £67,500 £60,000
Median salary % change year-on-year +11.11% +12.50% +9.09%
10th Percentile £48,750 £47,500 £36,250
90th Percentile £110,000 £100,000 £89,500
England median annual salary £65,000 £57,500 £55,000
% change year-on-year +13.04% +4.55% -2.22%

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 London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
London
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 27,923 27,728 32,900
As % of all permanent IT jobs advertised in London 40.54% 40.72% 39.93%
Number of salaries quoted 22,983 23,664 28,787
London median annual salary £62,500 £60,000 £55,000
Median salary % change year-on-year +4.17% +9.09% -
10th Percentile £37,500 £36,250 £35,000
90th Percentile £92,500 £87,500 £85,000
England median annual salary £50,000 £47,500 £47,500
% change year-on-year +5.26% - +5.56%

WebSockets
Job Vacancy Trend in London

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

Job vacancy trend for WebSockets in London

WebSockets
Salary Trend in London

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

Salary trend for WebSockets in London

WebSockets
Salary Histogram in London

The salary distribution of IT jobs citing WebSockets in London over the 6 months to 21 May 2018.

Salary histogram for WebSockets in London

WebSockets
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing WebSockets within the London region over the 6 months to 21 May 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London +25 50 £70,000 -13.85% 11
North London - 16 £75,000 -
East London +14 9 £62,500 +4.17% 7
WebSockets
England

For the 6 months to 21 May 2018, IT jobs citing WebSockets also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the London region with a requirement for WebSockets.

1 223 (67.58%) JavaScript
2 152 (46.06%) Agile Software Development
3 134 (40.61%) React
4 113 (34.24%) RESTful
4 113 (34.24%) REST
5 112 (33.94%) C#
5 112 (33.94%) Front End Development
6 111 (33.64%) HTML
7 106 (32.12%) NoSQL
8 104 (31.52%) CSS
9 100 (30.30%) AngularJS
10 90 (27.27%) Node.js
11 89 (26.97%) Software Engineering
11 89 (26.97%) Docker
12 87 (26.36%) Finance
13 85 (25.76%) Microservices
14 84 (25.45%) Java
15 83 (25.15%) .NET
16 77 (23.33%) HTML5
17 70 (21.21%) Git (software)
18 67 (20.30%) Test Automation
19 66 (20.00%) Redux
20 64 (19.39%) Greenfield Project
21 63 (19.09%) SQL
21 63 (19.09%) OO
22 62 (18.79%) F#
23 60 (18.18%) Python
23 60 (18.18%) Kafka
24 59 (17.88%) ES6
24 59 (17.88%) Linux

WebSockets
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 29 (8.79%) Elasticsearch
2 20 (6.06%) Ethereum
3 17 (5.15%) CMS
4 9 (2.73%) Confluence
5 6 (1.82%) Apache
5 6 (1.82%) WordPress
6 5 (1.52%) nginx
7 4 (1.21%) Gunicorn
8 3 (0.91%) Jetty
8 3 (0.91%) Tomcat
9 2 (0.61%) Predix
9 2 (0.61%) ThingWorx
9 2 (0.61%) Tornado
10 1 (0.30%) Drupal
10 1 (0.30%) GlassFish
10 1 (0.30%) JBoss
10 1 (0.30%) WebLogic
10 1 (0.30%) WildFly
Applications
1 1 (0.30%) Photoshop
Business Applications
1 9 (2.73%) RMDS
2 5 (1.52%) Distributed Ledger
Cloud Services
1 42 (12.73%) npm
2 35 (10.61%) Amazon AWS
3 21 (6.36%) GitHub
4 16 (4.85%) Microsoft Azure
5 6 (1.82%) Cloud Computing
5 6 (1.82%) IaaS
5 6 (1.82%) SaaS
6 5 (1.52%) Google Cloud Platform
7 3 (0.91%) Slack
7 3 (0.91%) Trello
7 3 (0.91%) Yarn
8 2 (0.61%) Akamai
9 1 (0.30%) AWS Lambda
9 1 (0.30%) DigitalOcean
9 1 (0.30%) Google Compute Engine
9 1 (0.30%) Serverless
Communications & Networking
1 34 (10.30%) HTTP
2 23 (6.97%) Internet
3 9 (2.73%) Multicast
4 6 (1.82%) Peer-to-Peer Networking
5 5 (1.52%) SMS
6 3 (0.91%) MQTT
6 3 (0.91%) Value-Added Service
7 2 (0.61%) AMQP
7 2 (0.61%) Bluetooth
7 2 (0.61%) DNS
7 2 (0.61%) Modbus
7 2 (0.61%) RFID
7 2 (0.61%) ZigBee
8 1 (0.30%) HTTPS
Database & Business Intelligence
1 106 (32.12%) NoSQL
2 57 (17.27%) Blockchain
3 55 (16.67%) PostgreSQL
4 48 (14.55%) MongoDB
5 40 (12.12%) Event Store
6 25 (7.58%) Redis
7 21 (6.36%) MySQL
8 19 (5.76%) Big Data
9 13 (3.94%) SQL Server
10 9 (2.73%) Relational Database
11 8 (2.42%) Infinispan
12 6 (1.82%) Aerospike
12 6 (1.82%) Apache Cassandra
13 5 (1.52%) Cloud Spanner
13 5 (1.52%) NewSQL
14 4 (1.21%) VoltDB
15 3 (0.91%) DB2
16 2 (0.61%) Couchbase
16 2 (0.61%) Informix
16 2 (0.61%) Neo4j
Development Applications
1 70 (21.21%) Git (software)
2 45 (13.64%) Jenkins
3 38 (11.52%) Atlassian Bamboo
3 38 (11.52%) Octopus Deploy
4 33 (10.00%) Jasmine
5 32 (9.70%) Cucumber
6 26 (7.88%) Gradle
7 22 (6.67%) Visual Studio Team System
7 22 (6.67%) webpack
8 21 (6.36%) Karma Test Runner
9 15 (4.55%) gulp
9 15 (4.55%) JIRA
10 13 (3.94%) Maven
11 12 (3.64%) Grunt
12 10 (3.03%) Babel
12 10 (3.03%) Bitbucket
13 9 (2.73%) JUnit
13 9 (2.73%) Protractor
14 7 (2.12%) Subversion
15 6 (1.82%) IntelliJ
General
1 87 (26.36%) Finance
2 50 (15.15%) Banking
3 41 (12.42%) Investment Banking
4 19 (5.76%) Retail
5 14 (4.24%) Games
6 8 (2.42%) Financial Institution
7 7 (2.12%) Advertising
8 5 (1.52%) Multimedia
9 3 (0.91%) Front Office
9 3 (0.91%) Prime Brokerage
10 2 (0.61%) Automotive
10 2 (0.61%) Manufacturing
11 1 (0.30%) Legal
Job Titles
1 226 (68.48%) Developer
2 75 (22.73%) JavaScript Developer
3 68 (20.61%) Front End Developer (Client-Side Developer)
4 67 (20.30%) React Developer
5 49 (14.85%) Software Engineer
6 47 (14.24%) Senior Developer
7 28 (8.48%) C# Developer
7 28 (8.48%) Full Stack Developer
7 28 (8.48%) HTML Developer
7 28 (8.48%) JavaScript Engineer
8 18 (5.45%) Blockchain Developer
9 17 (5.15%) Node.js Developer
9 17 (5.15%) Senior Front-End Developer
10 15 (4.55%) .NET Developer
10 15 (4.55%) Java Developer
10 15 (4.55%) Python Developer
10 15 (4.55%) Senior Software Engineer
11 14 (4.24%) C++ Developer
11 14 (4.24%) HTML CSS Developer
12 13 (3.94%) C# .NET Developer
Libraries, Frameworks & Software Standards
1 134 (40.61%) React
2 113 (34.24%) REST
2 113 (34.24%) RESTful
3 111 (33.64%) HTML
4 104 (31.52%) CSS
5 100 (30.30%) AngularJS
6 90 (27.27%) Node.js
7 83 (25.15%) .NET
8 77 (23.33%) HTML5
9 66 (20.00%) Redux
10 60 (18.18%) Kafka
11 43 (13.03%) jQuery
11 43 (13.03%) JSON
12 42 (12.73%) CSS3
13 36 (10.91%) Protocol Buffers
14 34 (10.30%) SignalR
15 33 (10.00%) Ajax
16 32 (9.70%) ASP.NET Web API
17 31 (9.39%) FIX Protocol
18 27 (8.18%) RabbitMQ
Miscellaneous
1 64 (19.39%) Greenfield Project
2 38 (11.52%) User Experience
3 26 (7.88%) Self-Motivation
4 23 (6.97%) Fintech
5 21 (6.36%) Virtual Team
6 20 (6.06%) Algorithms
6 20 (6.06%) Computer Science
7 18 (5.45%) Analytical Skills
8 17 (5.15%) Spread Betting
9 15 (4.55%) Client/Server
10 13 (3.94%) Data Structures
10 13 (3.94%) Linux Command Line
11 11 (3.33%) Mobile App
12 9 (2.73%) Foreign Exchange (FX)
12 9 (2.73%) Hedge funds
13 8 (2.42%) Enterprise Software
14 6 (1.82%) Bitcoin
14 6 (1.82%) Cyberthreat
14 6 (1.82%) Fixed Income
14 6 (1.82%) Private Cloud
Operating Systems
1 59 (17.88%) Linux
2 26 (7.88%) Unix
3 21 (6.36%) Windows
3 21 (6.36%) Windows 10
4 16 (4.85%) Apple iOS
5 14 (4.24%) Android
6 6 (1.82%) CentOS
7 5 (1.52%) Fedora
7 5 (1.52%) Red Hat Enterprise Linux
8 3 (0.91%) Ubuntu
9 1 (0.30%) Amazon Linux
Processes & Methodologies
1 152 (46.06%) Agile Software Development
2 112 (33.94%) Front End Development
3 89 (26.97%) Software Engineering
4 85 (25.76%) Microservices
5 67 (20.30%) Test Automation
6 63 (19.09%) OO
7 47 (14.24%) Continuous Improvement
8 46 (13.94%) Web Development
9 43 (13.03%) Event-Driven Architecture
10 40 (12.12%) Deployment Automation
11 39 (11.82%) High Availability
12 37 (11.21%) Knowledge Management
12 37 (11.21%) Low Latency
12 37 (11.21%) Scrum
13 33 (10.00%) TDD
14 32 (9.70%) Analytics
14 32 (9.70%) Multithreading
15 29 (8.79%) Push Notifications
16 28 (8.48%) Open Source
17 27 (8.18%) High-Frequency Trading
Programming Languages
1 223 (67.58%) JavaScript
2 112 (33.94%) C#
3 84 (25.45%) Java
4 63 (19.09%) SQL
5 62 (18.79%) F#
6 60 (18.18%) Python
7 59 (17.88%) ES6
8 55 (16.67%) TypeScript
9 36 (10.91%) Go
10 34 (10.30%) PowerShell
11 24 (7.27%) C++
12 17 (5.15%) PHP
13 13 (3.94%) Ruby
14 9 (2.73%) Perl
15 7 (2.12%) ES7
15 7 (2.12%) Solidity
16 6 (1.82%) Apple Swift
17 5 (1.52%) ES8
17 5 (1.52%) Java 8
17 5 (1.52%) Objective-C
Qualifications
1 35 (10.61%) Degree
2 2 (0.61%) Master's Degree
2 2 (0.61%) SC Cleared
2 2 (0.61%) Security Cleared
3 1 (0.30%) Computer Science Degree
3 1 (0.30%) PhD
Quality Assurance & Compliance
1 35 (10.61%) QA
2 2 (0.61%) GDPR
2 2 (0.61%) WCAG
3 1 (0.30%) GCP
3 1 (0.30%) ISO/IEC 27001
3 1 (0.30%) PCI DSS
System Software
1 89 (26.97%) Docker
2 6 (1.82%) VMware Infrastructure
3 1 (0.30%) GridGain
Systems Management
1 10 (3.03%) Kubernetes
2 9 (2.73%) Ansible
3 6 (1.82%) Opscode Chef
3 6 (1.82%) Puppet
4 4 (1.21%) Terraform
5 3 (0.91%) Docker Swarm
6 1 (0.30%) Kibana
Vendors
1 16 (4.85%) Google
2 14 (4.24%) Red Hat
3 13 (3.94%) Microsoft
4 9 (2.73%) Reuters
5 6 (1.82%) VMware
6 5 (1.52%) Xamarin
7 3 (0.91%) Facebook
7 3 (0.91%) Sybase
8 2 (0.61%) Cisco
8 2 (0.61%) Cognizant
8 2 (0.61%) F5
8 2 (0.61%) IBM
8 2 (0.61%) New Relic
8 2 (0.61%) Sigfox
9 1 (0.30%) SaltStack
9 1 (0.30%) Twitter