Period
to 20 October 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 20 October 2018 with a comparison to the same period in the previous 2 years.

WebSockets
England > London
6 months to
20 Oct 2018
Same period 2017 Same period 2016
Rank 535 536 662
Rank change year-on-year +1 +126 +182
Permanent jobs citing WebSockets 297 318 198
As % of all permanent IT jobs advertised in London 0.44% 0.43% 0.26%
As % of the Libraries, Frameworks & Software Standards category 1.07% 1.10% 0.64%
Number of salaries quoted 216 230 171
London median annual salary £70,000 £67,500 £60,000
Median salary % change year-on-year +3.70% +12.50% -4.00%
10th Percentile £53,750 £47,500 £43,750
90th Percentile £110,000 £100,000 £90,000
England median annual salary £70,000 £60,000 £55,000
% change year-on-year +16.67% +9.09% -8.33%

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 27,697 29,004 31,052
As % of all permanent IT jobs advertised in London 41.03% 39.09% 40.36%
Number of salaries quoted 22,634 23,457 27,368
London median annual salary £65,000 £60,000 £57,500
Median salary % change year-on-year +8.33% +4.35% +4.55%
10th Percentile £37,500 £36,500 £35,000
90th Percentile £95,000 £90,000 £85,000
England median annual salary £52,500 £50,000 £47,500
% change year-on-year +5.00% +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 20 October 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 20 October 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 -26 35 £57,500 -14.81% 19
East London -2 7 £62,500 +4.17% 5
West London +45 6 £76,250 - 4
South London - 3 £72,500 - 2
WebSockets
England

For the 6 months to 20 October 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.

1 192 (64.65%) JavaScript
2 134 (45.12%) Agile Software Development
3 109 (36.70%) React
4 103 (34.68%) HTML
5 100 (33.67%) Git (software)
6 97 (32.66%) C#
7 96 (32.32%) AngularJS
8 92 (30.98%) SQL
9 90 (30.30%) CSS
10 86 (28.96%) NoSQL
11 80 (26.94%) REST
12 75 (25.25%) Front End Development
13 72 (24.24%) Node.js
13 72 (24.24%) Java
13 72 (24.24%) Finance
14 70 (23.57%) Docker
15 68 (22.90%) Test Automation
16 66 (22.22%) RESTful
17 64 (21.55%) Blockchain
18 59 (19.87%) HTML5
19 56 (18.86%) Microservices
19 56 (18.86%) SignalR
20 53 (17.85%) .NET
21 52 (17.51%) Software Engineering
22 51 (17.17%) Web Development
23 50 (16.84%) MongoDB
23 50 (16.84%) Ajax
24 48 (16.16%) Amazon AWS
24 48 (16.16%) Fintech
25 47 (15.82%) Redux

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 (11.11%) Apache
1 33 (11.11%) Elasticsearch
2 22 (7.41%) Ethereum
3 19 (6.40%) CMS
4 9 (3.03%) nginx
5 8 (2.69%) Gunicorn
6 7 (2.36%) Jetty
6 7 (2.36%) Tomcat
7 4 (1.35%) Apache Spark
8 3 (1.01%) Tornado
8 3 (1.01%) WordPress
9 2 (0.67%) Jupyter
9 2 (0.67%) Luigi
10 1 (0.34%) Confluence
10 1 (0.34%) IIS
10 1 (0.34%) uWSGI
Applications
1 2 (0.67%) Photoshop
Cloud Services
1 48 (16.16%) Amazon AWS
2 37 (12.46%) Microsoft Azure
3 20 (6.73%) GitHub
3 20 (6.73%) npm
4 18 (6.06%) SaaS
5 5 (1.68%) Akamai
6 4 (1.35%) Amazon S3
7 3 (1.01%) Serverless
8 2 (0.67%) Google Cloud Platform
9 1 (0.34%) AWS Lambda
Communications & Networking
1 44 (14.81%) HTTP
2 22 (7.41%) Internet
3 18 (6.06%) Peer-to-Peer Networking
4 17 (5.72%) TCP/IP
5 6 (2.02%) Reverse Proxy
6 5 (1.68%) DNS
6 5 (1.68%) Ethernet
6 5 (1.68%) MPLS
6 5 (1.68%) VPN
7 1 (0.34%) Firewall
7 1 (0.34%) Multicast
Database & Business Intelligence
1 86 (28.96%) NoSQL
2 64 (21.55%) Blockchain
3 50 (16.84%) MongoDB
4 26 (8.75%) Event Store
5 22 (7.41%) PostgreSQL
6 21 (7.07%) Redis
7 18 (6.06%) Big Data
8 7 (2.36%) DB2
8 7 (2.36%) VoltDB
9 6 (2.02%) Aerospike
9 6 (2.02%) SQL Server
10 5 (1.68%) Couchbase
10 5 (1.68%) Informix
11 3 (1.01%) Amazon Redshift
11 3 (1.01%) Hadoop
11 3 (1.01%) MySQL
12 2 (0.67%) Relational Database
13 1 (0.34%) Amazon DynamoDB
13 1 (0.34%) RDBMS
Development Applications
1 100 (33.67%) Git (software)
2 44 (14.81%) Jenkins
3 37 (12.46%) Gradle
4 28 (9.43%) Maven
5 24 (8.08%) Vagrant
6 20 (6.73%) Atlassian Bamboo
6 20 (6.73%) Octopus Deploy
7 15 (5.05%) Bitbucket
7 15 (5.05%) Cucumber
8 14 (4.71%) webpack
9 13 (4.38%) Jasmine
9 13 (4.38%) Karma Test Runner
9 13 (4.38%) Visual Studio Team System
10 8 (2.69%) git-flow
11 7 (2.36%) Mocha
12 6 (2.02%) Subversion
13 4 (1.35%) Grunt
13 4 (1.35%) LoadRunner
13 4 (1.35%) PostCSS
14 3 (1.01%) JMeter
General
1 72 (24.24%) Finance
2 32 (10.77%) Banking
3 26 (8.75%) Investment Banking
4 17 (5.72%) Games
5 16 (5.39%) Financial Institution
6 5 (1.68%) Telecoms
7 3 (1.01%) Automotive
8 2 (0.67%) Music Industry
9 1 (0.34%) Polish Language
Job Titles
1 197 (66.33%) Developer
2 50 (16.84%) Senior Developer
3 38 (12.79%) Front End Developer (Client-Side Developer)
3 38 (12.79%) Lead Developer
4 36 (12.12%) C# Developer
5 35 (11.78%) JavaScript Developer
6 33 (11.11%) Software Engineer
7 32 (10.77%) Full Stack Developer
8 29 (9.76%) Blockchain Developer
9 27 (9.09%) React Developer
10 24 (8.08%) Java Developer
11 22 (7.41%) Senior Java Developer
12 17 (5.72%) Senior Software Engineer
13 16 (5.39%) JavaScript Engineer
14 15 (5.05%) Angular Developer
14 15 (5.05%) HTML Developer
14 15 (5.05%) UI Developer
15 13 (4.38%) Lead C# Developer
15 13 (4.38%) Node.js Developer
16 12 (4.04%) Python Developer
Libraries, Frameworks & Software Standards
1 109 (36.70%) React
2 103 (34.68%) HTML
3 96 (32.32%) AngularJS
4 90 (30.30%) CSS
5 80 (26.94%) REST
6 72 (24.24%) Node.js
7 66 (22.22%) RESTful
8 59 (19.87%) HTML5
9 56 (18.86%) SignalR
10 53 (17.85%) .NET
11 50 (16.84%) Ajax
12 47 (15.82%) Redux
13 44 (14.81%) RabbitMQ
14 38 (12.79%) JSON
15 36 (12.12%) Kafka
16 28 (9.43%) Spring
17 25 (8.42%) CSS3
18 24 (8.08%) Smart Contracts
19 23 (7.74%) ASP.NET Web API
19 23 (7.74%) WCF
Miscellaneous
1 48 (16.16%) Fintech
2 30 (10.10%) Hedge funds
3 27 (9.09%) Greenfield Project
3 27 (9.09%) User Experience
4 24 (8.08%) Analytical Skills
5 22 (7.41%) Virtual Team
6 21 (7.07%) Spread Betting
7 20 (6.73%) Client/Server
8 19 (6.40%) Self-Motivation
9 13 (4.38%) Cyberthreat
10 11 (3.70%) Computer Science
11 9 (3.03%) Data Structures
11 9 (3.03%) Mobile App
12 7 (2.36%) Fixed Income
13 6 (2.02%) Private Cloud
13 6 (2.02%) Reference Data
14 3 (1.01%) Derivative
14 3 (1.01%) iPhone
15 2 (0.67%) Browser Games
15 2 (0.67%) Equities
Operating Systems
1 44 (14.81%) Linux
2 40 (13.47%) Windows
3 36 (12.12%) Unix
4 13 (4.38%) Windows 10
5 6 (2.02%) CentOS
6 5 (1.68%) Fedora
6 5 (1.68%) Red Hat Enterprise Linux
7 4 (1.35%) Apple iOS
8 3 (1.01%) Android
9 1 (0.34%) Amazon Linux
Processes & Methodologies
1 134 (45.12%) Agile Software Development
2 75 (25.25%) Front End Development
3 68 (22.90%) Test Automation
4 56 (18.86%) Microservices
5 52 (17.51%) Software Engineering
6 51 (17.17%) Web Development
7 44 (14.81%) OO
8 38 (12.79%) TDD
9 31 (10.44%) Unit Testing
10 30 (10.10%) Problem-Solving
11 28 (9.43%) Multithreading
12 27 (9.09%) DevOps
12 27 (9.09%) High Availability
12 27 (9.09%) Machine Learning
12 27 (9.09%) MVC
13 24 (8.08%) Push Notifications
14 22 (7.41%) Cryptocurrency
14 22 (7.41%) Scrum
15 21 (7.07%) Deployment Automation
15 21 (7.07%) Mentoring
Programming Languages
1 192 (64.65%) JavaScript
2 97 (32.66%) C#
3 92 (30.98%) SQL
4 72 (24.24%) Java
5 40 (13.47%) TypeScript
6 37 (12.46%) ES6
6 37 (12.46%) Python
7 33 (11.11%) Go
8 31 (10.44%) F#
9 18 (6.06%) PowerShell
10 16 (5.39%) Solidity
11 15 (5.05%) C++
12 7 (2.36%) Ruby
13 6 (2.02%) Java 8
14 3 (1.01%) ES7
14 3 (1.01%) Objective-C
15 2 (0.67%) Bash Shell
15 2 (0.67%) Elixir
15 2 (0.67%) GLSL
15 2 (0.67%) PHP
Qualifications
1 30 (10.10%) Degree
2 3 (1.01%) ISEB
3 2 (0.67%) Computer Science Degree
3 2 (0.67%) Master's Degree
Quality Assurance & Compliance
1 13 (4.38%) QA
2 1 (0.34%) GDPR
2 1 (0.34%) ISO/IEC 27001
2 1 (0.34%) PCI DSS
System Software
1 70 (23.57%) Docker
2 22 (7.41%) GridGain
3 19 (6.40%) VMware Infrastructure
Systems Management
1 21 (7.07%) Ansible
2 18 (6.06%) Opscode Chef
2 18 (6.06%) Puppet
3 3 (1.01%) Kubernetes
4 2 (0.67%) Terraform
5 1 (0.34%) Docker Swarm
5 1 (0.34%) Kibana
5 1 (0.34%) logstash
Vendors
1 19 (6.40%) VMware
2 10 (3.37%) Google
3 7 (2.36%) Sybase
4 5 (1.68%) F5
4 5 (1.68%) Microsoft
4 5 (1.68%) New Relic
4 5 (1.68%) Red Hat
5 4 (1.35%) Splunk
6 3 (1.01%) HP
7 2 (0.67%) Cypress Semiconductor
8 1 (0.34%) Twitter