Period
to 16 August 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 16 August 2018 with a comparison to the same period in the previous 2 years.

WebSockets
England > London
6 months to
16 Aug 2018
Same period 2017 Same period 2016
Rank 540 567 706
Rank change year-on-year +27 +139 +148
Permanent jobs citing WebSockets 299 308 180
As % of all permanent IT jobs advertised in London 0.43% 0.42% 0.22%
As % of the Libraries, Frameworks & Software Standards category 1.06% 1.05% 0.55%
Number of salaries quoted 227 243 164
London median annual salary £70,000 £67,500 £60,000
Median salary % change year-on-year +3.70% +12.50% -2.04%
10th Percentile £52,000 £47,500 £37,500
90th Percentile £100,000 £100,000 £86,750
England median annual salary £65,000 £60,000 £51,500
% change year-on-year +8.33% +16.50% -14.17%

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 28,336 29,426 32,812
As % of all permanent IT jobs advertised in London 40.92% 39.78% 40.51%
Number of salaries quoted 23,138 23,994 28,896
London median annual salary £62,500 £60,000 £57,500
Median salary % change year-on-year +4.17% +4.35% +4.55%
10th Percentile £37,500 £36,250 £35,000
90th Percentile £93,750 £90,000 £85,000
England median annual salary £50,000 £48,250 £47,500
% change year-on-year +3.63% +1.58% +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 16 August 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 16 August 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 -10 36 £60,000 -11.11% 14
East London 0 9 £62,500 +4.17% 2
North London +6 5 £75,000 +87.50%
West London +22 4 £81,250 +35.42% 3
WebSockets
England

For the 6 months to 16 August 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.

1 206 (68.90%) JavaScript
2 131 (43.81%) Agile Software Development
3 119 (39.80%) React
4 108 (36.12%) HTML
5 102 (34.11%) CSS
6 100 (33.44%) Git (software)
7 95 (31.77%) AngularJS
8 88 (29.43%) C#
9 86 (28.76%) Front End Development
10 81 (27.09%) REST
11 80 (26.76%) Java
12 78 (26.09%) SQL
12 78 (26.09%) NoSQL
13 76 (25.42%) Blockchain
14 74 (24.75%) Docker
15 73 (24.41%) RESTful
16 70 (23.41%) Finance
17 68 (22.74%) Microservices
18 64 (21.40%) Node.js
19 59 (19.73%) Software Engineering
20 58 (19.40%) Linux
21 56 (18.73%) Test Automation
22 55 (18.39%) Ajax
23 54 (18.06%) Python
23 54 (18.06%) Redux
24 53 (17.73%) HTML5
25 51 (17.06%) Jenkins
26 49 (16.39%) .NET
27 48 (16.05%) MongoDB
28 45 (15.05%) Web Development

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 33 (11.04%) Apache
2 25 (8.36%) Elasticsearch
3 23 (7.69%) Ethereum
4 19 (6.35%) CMS
5 9 (3.01%) Gunicorn
6 8 (2.68%) nginx
6 8 (2.68%) WordPress
7 7 (2.34%) Jetty
7 7 (2.34%) Tomcat
8 4 (1.34%) Tornado
9 2 (0.67%) Apache Spark
9 2 (0.67%) Jupyter
9 2 (0.67%) Luigi
9 2 (0.67%) Predix
9 2 (0.67%) ThingWorx
10 1 (0.33%) IIS
10 1 (0.33%) JBoss
10 1 (0.33%) uWSGI
10 1 (0.33%) WebLogic
10 1 (0.33%) WildFly
Applications
1 1 (0.33%) Photoshop
Business Applications
1 2 (0.67%) RMDS
Cloud Services
1 41 (13.71%) Amazon AWS
2 27 (9.03%) Microsoft Azure
3 22 (7.36%) npm
4 21 (7.02%) GitHub
5 12 (4.01%) SaaS
6 5 (1.67%) Akamai
6 5 (1.67%) Google Cloud Platform
7 3 (1.00%) Amazon S3
7 3 (1.00%) Serverless
7 3 (1.00%) Yarn
8 1 (0.33%) AWS Lambda
8 1 (0.33%) Cloud Computing
8 1 (0.33%) DigitalOcean
8 1 (0.33%) Google Compute Engine
Communications & Networking
1 42 (14.05%) HTTP
2 22 (7.36%) Internet
3 16 (5.35%) Peer-to-Peer Networking
4 7 (2.34%) TCP/IP
5 5 (1.67%) DNS
6 3 (1.00%) MQTT
6 3 (1.00%) Multicast
7 2 (0.67%) AMQP
7 2 (0.67%) Bluetooth
7 2 (0.67%) Modbus
7 2 (0.67%) RFID
7 2 (0.67%) Value-Added Service
7 2 (0.67%) ZigBee
8 1 (0.33%) Firewall
8 1 (0.33%) HTTPS
8 1 (0.33%) SMS
Database & Business Intelligence
1 78 (26.09%) NoSQL
2 76 (25.42%) Blockchain
3 48 (16.05%) MongoDB
4 33 (11.04%) PostgreSQL
5 29 (9.70%) Event Store
6 27 (9.03%) Redis
7 18 (6.02%) Big Data
8 12 (4.01%) SQL Server
9 8 (2.68%) VoltDB
10 7 (2.34%) DB2
11 6 (2.01%) Aerospike
11 6 (2.01%) MySQL
12 5 (1.67%) Couchbase
12 5 (1.67%) Informix
13 2 (0.67%) Apache Cassandra
13 2 (0.67%) Relational Database
14 1 (0.33%) Amazon DynamoDB
14 1 (0.33%) Amazon Redshift
14 1 (0.33%) NewSQL
14 1 (0.33%) RethinkDB
Development Applications
1 100 (33.44%) Git (software)
2 51 (17.06%) Jenkins
3 41 (13.71%) Gradle
4 29 (9.70%) Maven
5 24 (8.03%) Atlassian Bamboo
5 24 (8.03%) Octopus Deploy
5 24 (8.03%) Vagrant
6 18 (6.02%) Cucumber
7 15 (5.02%) Visual Studio Team System
8 14 (4.68%) Jasmine
8 14 (4.68%) Karma Test Runner
9 11 (3.68%) Bitbucket
10 8 (2.68%) git-flow
11 7 (2.34%) Subversion
12 4 (1.34%) Grunt
12 4 (1.34%) gulp
12 4 (1.34%) JIRA
12 4 (1.34%) LoadRunner
12 4 (1.34%) Selenium
12 4 (1.34%) webpack
General
1 70 (23.41%) Finance
2 35 (11.71%) Banking
3 29 (9.70%) Investment Banking
4 21 (7.02%) Games
5 16 (5.35%) Financial Institution
6 3 (1.00%) Automotive
7 2 (0.67%) Front Office
7 2 (0.67%) Manufacturing
7 2 (0.67%) Prime Brokerage
7 2 (0.67%) Retail
8 1 (0.33%) Polish Language
Job Titles
1 218 (72.91%) Developer
2 64 (21.40%) Senior Developer
3 52 (17.39%) Front End Developer (Client-Side Developer)
3 52 (17.39%) React Developer
4 44 (14.72%) JavaScript Developer
5 33 (11.04%) C# Developer
6 32 (10.70%) Software Engineer
7 31 (10.37%) Full Stack Developer
8 29 (9.70%) Blockchain Developer
9 26 (8.70%) Java Developer
10 22 (7.36%) Senior Java Developer
11 21 (7.02%) JavaScript Engineer
12 17 (5.69%) Lead Developer
12 17 (5.69%) Python Developer
13 16 (5.35%) HTML Developer
14 15 (5.02%) .NET Developer
14 15 (5.02%) Angular Developer
14 15 (5.02%) Node.js Developer
14 15 (5.02%) Senior Front-End Developer
15 13 (4.35%) C# .NET Developer
Libraries, Frameworks & Software Standards
1 119 (39.80%) React
2 108 (36.12%) HTML
3 102 (34.11%) CSS
4 95 (31.77%) AngularJS
5 81 (27.09%) REST
6 73 (24.41%) RESTful
7 64 (21.40%) Node.js
8 55 (18.39%) Ajax
9 54 (18.06%) Redux
10 53 (17.73%) HTML5
11 49 (16.39%) .NET
12 45 (15.05%) Kafka
13 41 (13.71%) SignalR
14 40 (13.38%) JSON
15 34 (11.37%) RabbitMQ
16 30 (10.03%) Spring
17 29 (9.70%) Protocol Buffers
18 26 (8.70%) Reactive Extensions
19 24 (8.03%) CSS3
20 23 (7.69%) Java EE
Miscellaneous
1 42 (14.05%) Greenfield Project
2 38 (12.71%) Fintech
3 29 (9.70%) User Experience
4 26 (8.70%) Virtual Team
5 20 (6.69%) Hedge funds
5 20 (6.69%) Self-Motivation
6 18 (6.02%) Client/Server
7 17 (5.69%) Analytical Skills
8 16 (5.35%) Computer Science
8 16 (5.35%) Spread Betting
9 13 (4.35%) Cyberthreat
10 10 (3.34%) Mobile App
11 9 (3.01%) Data Structures
11 9 (3.01%) Fixed Income
12 6 (2.01%) Private Cloud
12 6 (2.01%) Reference Data
13 5 (1.67%) Linux Command Line
14 4 (1.34%) Algorithms
15 3 (1.00%) Enterprise Software
15 3 (1.00%) Foreign Exchange (FX)
Operating Systems
1 58 (19.40%) Linux
2 38 (12.71%) Unix
3 26 (8.70%) Windows
4 14 (4.68%) Windows 10
5 8 (2.68%) CentOS
6 7 (2.34%) Fedora
6 7 (2.34%) Red Hat Enterprise Linux
7 6 (2.01%) Android
8 5 (1.67%) Apple iOS
9 1 (0.33%) Amazon Linux
Processes & Methodologies
1 131 (43.81%) Agile Software Development
2 86 (28.76%) Front End Development
3 68 (22.74%) Microservices
4 59 (19.73%) Software Engineering
5 56 (18.73%) Test Automation
6 45 (15.05%) Web Development
7 42 (14.05%) TDD
8 41 (13.71%) OO
9 29 (9.70%) High Availability
9 29 (9.70%) Multithreading
10 27 (9.03%) Continuous Improvement
10 27 (9.03%) Low Latency
10 27 (9.03%) Problem-Solving
11 25 (8.36%) Deployment Automation
12 24 (8.03%) Event-Driven Architecture
13 23 (7.69%) Cryptocurrency
13 23 (7.69%) DevOps
14 22 (7.36%) Analytics
14 22 (7.36%) Machine Learning
14 22 (7.36%) Open Source
Programming Languages
1 206 (68.90%) JavaScript
2 88 (29.43%) C#
3 80 (26.76%) Java
4 78 (26.09%) SQL
5 54 (18.06%) Python
6 42 (14.05%) ES6
6 42 (14.05%) TypeScript
7 37 (12.37%) F#
8 34 (11.37%) Go
9 25 (8.36%) PowerShell
10 21 (7.02%) C++
11 17 (5.69%) Solidity
12 12 (4.01%) Ruby
13 6 (2.01%) Java 8
14 4 (1.34%) C
14 4 (1.34%) ES7
15 2 (0.67%) Bash Shell
15 2 (0.67%) Haskell
15 2 (0.67%) Perl
15 2 (0.67%) PHP
Qualifications
1 41 (13.71%) Degree
2 3 (1.00%) ISEB
2 3 (1.00%) Master's Degree
3 1 (0.33%) Computer Science Degree
3 1 (0.33%) PhD
Quality Assurance & Compliance
1 15 (5.02%) QA
2 1 (0.33%) GCP
2 1 (0.33%) GDPR
2 1 (0.33%) ISO/IEC 27001
2 1 (0.33%) PCI DSS
System Software
1 74 (24.75%) Docker
2 23 (7.69%) GridGain
3 17 (5.69%) VMware Infrastructure
Systems Management
1 20 (6.69%) Ansible
2 16 (5.35%) Opscode Chef
2 16 (5.35%) Puppet
3 5 (1.67%) Kubernetes
4 4 (1.34%) Terraform
5 2 (0.67%) Docker Swarm
5 2 (0.67%) Kibana
6 1 (0.33%) logstash
Vendors
1 17 (5.69%) VMware
2 16 (5.35%) Google
3 11 (3.68%) Microsoft
4 7 (2.34%) Red Hat
4 7 (2.34%) Sybase
5 5 (1.67%) F5
5 5 (1.67%) New Relic
6 3 (1.00%) HP
7 2 (0.67%) Cisco
7 2 (0.67%) Cognizant
7 2 (0.67%) Cypress Semiconductor
7 2 (0.67%) IBM
7 2 (0.67%) Reuters
7 2 (0.67%) Sigfox
8 1 (0.33%) Facebook
8 1 (0.33%) SaltStack
8 1 (0.33%) Twitter
8 1 (0.33%) Xamarin