Period
to 24 November 2017

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 24 November 2017 with a comparison to the same period in the previous 2 years.

WebSockets
England > London
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 525 650 826
Rank change year-on-year +125 +176 +32
Permanent jobs citing WebSockets 328 192 91
As % of all permanent IT jobs advertised in London 0.44% 0.25% 0.10%
As % of the Libraries, Frameworks & Software Standards category 1.12% 0.63% 0.27%
Number of salaries quoted 231 153 81
London median annual salary £70,000 £65,000 £62,500
Median salary % change year-on-year +7.69% +4.00% +19.05%
10th Percentile £45,000 £43,750 £45,000
90th Percentile £100,000 £94,250 £95,000
England median annual salary £60,000 £55,000 £60,000
% change year-on-year +9.09% -8.33% +20.00%

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 29265 30492 33546
As % of all permanent IT jobs advertised in London 39.00% 40.22% 37.63%
Number of salaries quoted 23855 26858 28770
London median annual salary £60,000 £58,500 £55,000
Median salary % change year-on-year +2.56% +6.36% +4.76%
10th Percentile £36,250 £35,000 £34,750
90th Percentile £90,000 £86,250 £83,750
England median annual salary £50,000 £47,500 £45,000
% 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 24 November 2017.

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 24 November 2017. 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 +57 45 £67,500 +12.50% 7
North London +16 8 £75,000 +100.00%
East London -4 1 £46,000 +2.22%
WebSockets
England

For the 6 months to 24 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 London region with a requirement for WebSockets.

1 172 (52.44%) Agile Software Development
2 153 (46.65%) REST
3 152 (46.34%) Finance
4 136 (41.46%) JavaScript
5 129 (39.33%) Java
6 116 (35.37%) Scrum
7 104 (31.71%) HTML
8 97 (29.57%) RESTful
9 96 (29.27%) CSS
10 95 (28.96%) JSON
11 86 (26.22%) NoSQL
12 83 (25.30%) AngularJS
12 83 (25.30%) React
13 79 (24.09%) C#
14 74 (22.56%) HTML5
15 72 (21.95%) Client/Server
15 72 (21.95%) Node.js
16 71 (21.65%) OO
17 70 (21.34%) Asset Management
18 68 (20.73%) Banking
19 67 (20.43%) TDD
19 67 (20.43%) BDD
20 63 (19.21%) Akka
21 62 (18.90%) Test Automation
21 62 (18.90%) SQL
22 58 (17.68%) CSS3
22 58 (17.68%) Microservices
23 55 (16.77%) Software Engineering
24 54 (16.46%) PostgreSQL
25 53 (16.16%) Multithreading

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 45 (13.72%) Apache
2 19 (5.79%) Confluence
3 13 (3.96%) CMS
4 12 (3.66%) Ethereum
5 11 (3.35%) Hyperledger
6 6 (1.83%) Elasticsearch
6 6 (1.83%) nginx
7 4 (1.22%) SharePoint
8 3 (0.91%) Sitecore CMS
8 3 (0.91%) WebSphere
9 2 (0.61%) Gunicorn
9 2 (0.61%) IIS
9 2 (0.61%) Tornado
9 2 (0.61%) uWSGI
10 1 (0.30%) Apache Spark
10 1 (0.30%) JBoss
Cloud Services
1 41 (12.50%) Amazon AWS
2 40 (12.20%) GitHub
3 18 (5.49%) Microsoft Azure
4 17 (5.18%) Slack
5 16 (4.88%) Trello
6 15 (4.57%) SaaS
7 14 (4.27%) IaaS
8 9 (2.74%) Cloud Computing
8 9 (2.74%) npm
9 8 (2.44%) Google Cloud Platform
10 5 (1.52%) Amazon S3
10 5 (1.52%) Google App Engine
11 4 (1.22%) Amazon EC2
12 1 (0.30%) Amazon CloudWatch
12 1 (0.30%) AWS CloudFormation
12 1 (0.30%) AWS Lambda
12 1 (0.30%) CloudFront
12 1 (0.30%) Serverless
Communications & Networking
1 30 (9.15%) Internet
2 19 (5.79%) HTTP
3 8 (2.44%) Cisco IOS
3 8 (2.44%) HTTPS
3 8 (2.44%) VoIP
3 8 (2.44%) VSAT
4 2 (0.61%) Intranet
4 2 (0.61%) SMS
4 2 (0.61%) TCP/IP
Database & Business Intelligence
1 86 (26.22%) NoSQL
2 54 (16.46%) PostgreSQL
3 46 (14.02%) MongoDB
4 25 (7.62%) Relational Database
5 19 (5.79%) Blockchain
6 17 (5.18%) Big Data
7 15 (4.57%) Infinispan
8 12 (3.66%) Event Store
8 12 (3.66%) MySQL
9 11 (3.35%) Apache Cassandra
10 8 (2.44%) RDBMS
10 8 (2.44%) SQL Server
11 6 (1.83%) Redis
12 4 (1.22%) KDB
12 4 (1.22%) Kdb+
13 3 (0.91%) RethinkDB
14 2 (0.61%) Aerospike
14 2 (0.61%) Hadoop
14 2 (0.61%) NewSQL
15 1 (0.30%) OrientDB
Development Applications
1 42 (12.80%) webpack
2 27 (8.23%) JIRA
3 26 (7.93%) Git (software)
3 26 (7.93%) Jenkins
4 24 (7.32%) Grunt
5 22 (6.71%) Cucumber
5 22 (6.71%) Jasmine
6 21 (6.40%) gulp
7 17 (5.18%) JUnit
8 15 (4.57%) Maven
9 14 (4.27%) FishEye
9 14 (4.27%) IntelliJ
10 13 (3.96%) Octopus Deploy
11 12 (3.66%) Atlassian Bamboo
11 12 (3.66%) WebDriver
12 10 (3.05%) Selenium
13 9 (2.74%) TeamCity
13 9 (2.74%) Vagrant
14 8 (2.44%) SoapUI
14 8 (2.44%) Zephyr
General
1 152 (46.34%) Finance
2 68 (20.73%) Banking
3 46 (14.02%) Retail Banking
4 45 (13.72%) Investment Banking
5 13 (3.96%) Games
6 10 (3.05%) Retail
6 10 (3.05%) Telecoms
7 9 (2.74%) Publishing
8 7 (2.13%) Front Office
9 5 (1.52%) Legal
10 3 (0.91%) Automotive
10 3 (0.91%) Back Office
10 3 (0.91%) Marketing
10 3 (0.91%) Music Industry
11 2 (0.61%) Financial Institution
12 1 (0.30%) iGaming
12 1 (0.30%) Law
12 1 (0.30%) Manufacturing
Job Titles
1 235 (71.65%) Developer
2 73 (22.26%) Java Developer
3 55 (16.77%) Senior Developer
4 52 (15.85%) Full Stack Developer
5 39 (11.89%) Python Developer
6 38 (11.59%) Front End Developer (Client-Side Developer)
6 38 (11.59%) JavaScript Developer
7 19 (5.79%) Senior Front-End Developer
7 19 (5.79%) Software Engineer
8 16 (4.88%) Architect
8 16 (4.88%) HTML Developer
9 14 (4.27%) JavaScript Engineer
9 14 (4.27%) Node.js Developer
10 13 (3.96%) .NET Developer
10 13 (3.96%) Java Engineer
10 13 (3.96%) Software Developer
11 12 (3.66%) Linux Developer
12 11 (3.35%) Senior .NET Developer
13 10 (3.05%) Agile Java Developer
13 10 (3.05%) Web Developer
Libraries, Frameworks & Software Standards
1 153 (46.65%) REST
2 104 (31.71%) HTML
3 97 (29.57%) RESTful
4 96 (29.27%) CSS
5 95 (28.96%) JSON
6 83 (25.30%) AngularJS
6 83 (25.30%) React
7 74 (22.56%) HTML5
8 72 (21.95%) Node.js
9 63 (19.21%) Akka
10 58 (17.68%) CSS3
11 48 (14.63%) .NET
12 47 (14.33%) Web Services
13 44 (13.41%) Spring MVC
14 37 (11.28%) Ajax
15 35 (10.67%) jQuery
16 33 (10.06%) Express
17 28 (8.54%) Sass
18 24 (7.32%) Backbone.js
18 24 (7.32%) Flask
Miscellaneous
1 72 (21.95%) Client/Server
2 47 (14.33%) Foreign Exchange (FX)
3 34 (10.37%) Computer Science
4 31 (9.45%) Greenfield Project
5 22 (6.71%) Enterprise Software
6 20 (6.10%) Fintech
7 15 (4.57%) Hedge funds
7 15 (4.57%) User Experience
8 12 (3.66%) Linux Command Line
9 8 (2.44%) Mobile App
10 7 (2.13%) Cloud Native
10 7 (2.13%) Data Centre
10 7 (2.13%) Equities
10 7 (2.13%) Fixed Income
11 6 (1.83%) Derivative
12 5 (1.52%) Data Structures
12 5 (1.52%) PKI
12 5 (1.52%) Social Media
13 3 (0.91%) Algorithms
13 3 (0.91%) Public Cloud
Operating Systems
1 50 (15.24%) Linux
2 36 (10.98%) Apple iOS
3 17 (5.18%) Android
4 10 (3.05%) Windows
5 7 (2.13%) Unix
Processes & Methodologies
1 172 (52.44%) Agile Software Development
2 116 (35.37%) Scrum
3 71 (21.65%) OO
4 70 (21.34%) Asset Management
5 67 (20.43%) BDD
5 67 (20.43%) TDD
6 62 (18.90%) Test Automation
7 58 (17.68%) Microservices
8 55 (16.77%) Software Engineering
9 53 (16.16%) Multithreading
10 52 (15.85%) Mathematics
11 49 (14.94%) Front End Development
12 46 (14.02%) High-Frequency Trading
12 46 (14.02%) Low Latency
13 45 (13.72%) Continuous Integration
13 45 (13.72%) Wealth Management
14 44 (13.41%) Multithreaded Programming
15 37 (11.28%) DevOps
16 36 (10.98%) Unit Testing
17 34 (10.37%) Web Development
Programming Languages
1 136 (41.46%) JavaScript
2 129 (39.33%) Java
3 79 (24.09%) C#
4 62 (18.90%) SQL
5 51 (15.55%) F#
6 45 (13.72%) Python
7 40 (12.20%) ES6
8 23 (7.01%) C++
9 20 (6.10%) Go
9 20 (6.10%) TypeScript
10 16 (4.88%) Haskell
11 13 (3.96%) ECMAScript
11 13 (3.96%) Scala
12 10 (3.05%) C
13 8 (2.44%) Clojure
13 8 (2.44%) Erlang
13 8 (2.44%) ML
13 8 (2.44%) Rust
13 8 (2.44%) Solidity
14 6 (1.83%) GraphQL
Qualifications
1 47 (14.33%) Degree
2 19 (5.79%) Computer Science Degree
3 8 (2.44%) PhD
4 4 (1.22%) Master's Degree
5 2 (0.61%) SC Cleared
5 2 (0.61%) Security Cleared
Quality Assurance & Compliance
1 29 (8.84%) QA
2 6 (1.83%) PSD2
3 3 (0.91%) WCAG
4 1 (0.30%) GCP
4 1 (0.30%) GDPR
System Software
1 49 (14.94%) Docker
Systems Management
1 12 (3.66%) Ansible
1 12 (3.66%) Kubernetes
2 4 (1.22%) Puppet
3 1 (0.30%) Docker Swarm
3 1 (0.30%) Kibana
3 1 (0.30%) logstash
3 1 (0.30%) Opscode Chef
Vendors
1 17 (5.18%) Red Hat
2 14 (4.27%) Microsoft
3 8 (2.44%) Cisco
3 8 (2.44%) Google
3 8 (2.44%) Xamarin
4 7 (2.13%) Apigee
4 7 (2.13%) CA
4 7 (2.13%) IBM
5 5 (1.52%) Oracle
6 4 (1.22%) Cognizant
6 4 (1.22%) Facebook
6 4 (1.22%) Sony
7 3 (0.91%) SaltStack
7 3 (0.91%) Sitecore
8 2 (0.61%) Splunk
9 1 (0.30%) Apple