Period
to 29 May 2020

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 29 May 2020 with a comparison to the same period in the previous 2 years.

WebSockets
England > London
6 months to
29 May 2020
Same period 2019 Same period 2018
Rank 480 522 525
Rank change year-on-year +42 +3 +78
Permanent jobs citing WebSockets 145 240 331
As % of all permanent jobs advertised in London 0.39% 0.41% 0.48%
As % of the Libraries, Frameworks & Software Standards category 0.94% 1.04% 1.19%
Number of salaries quoted 126 238 277
Median annual salary £67,500 £72,500 £72,500
Median salary % change year-on-year -6.90% - +7.41%
10th Percentile £48,750 £46,250 £48,750
90th Percentile £94,375 £110,000 £104,000
England median annual salary £62,500 £67,500 £65,000
% change year-on-year -7.41% +3.85% +18.18%

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 15,497 23,043 27,759
As % of all permanent IT jobs advertised in London 41.40% 39.66% 39.97%
Number of salaries quoted 12,750 19,130 22,799
Median annual salary £70,000 £65,000 £62,500
Median salary % change year-on-year +7.69% +4.00% +4.17%
10th Percentile £42,500 £38,750 £37,500
90th Percentile £105,000 £95,000 £92,500
England median annual salary £55,000 £53,500 £50,000
% change year-on-year +2.80% +7.00% +5.26%

WebSockets
Job Vacancy Trend in London

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

Job vacancy trend for WebSockets in London

WebSockets
Salary Trend in London

3-month moving average salary quoted in jobs citing WebSockets in London.

Salary trend for WebSockets in London

WebSockets
Salary Histogram in London

Salary distribution for jobs citing WebSockets in London over the 6 months to 29 May 2020.

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 29 May 2020. 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 +78 46 £70,000 +47.37%
West London +40 11 £62,500 +4.17%
WebSockets
England

For the 6 months to 29 May 2020, 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 71 (48.97%) JavaScript
2 68 (46.90%) C#
3 64 (44.14%) Java
4 61 (42.07%) Agile Software Development
5 59 (40.69%) Python
6 56 (38.62%) TDD
7 51 (35.17%) REST
8 50 (34.48%) HTML
9 49 (33.79%) Linux
9 49 (33.79%) Software Engineering
10 46 (31.72%) HTML5
11 45 (31.03%) AWS
12 44 (30.34%) CSS
13 43 (29.66%) TCP/IP
13 43 (29.66%) Analytics
14 42 (28.97%) Apple iOS
14 42 (28.97%) Windows
14 42 (28.97%) Android
15 41 (28.28%) Firewall
16 40 (27.59%) Wireshark
17 39 (26.90%) Git (software)
18 38 (26.21%) Microservices
18 38 (26.21%) React
19 37 (25.52%) Node.js
20 34 (23.45%) .NET
21 30 (20.69%) GraphQL
22 29 (20.00%) Fintech
22 29 (20.00%) Test Automation
23 27 (18.62%) User Experience
24 26 (17.93%) Kanban

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 5 (3.45%) Elasticsearch
2 1 (0.69%) Apache
2 1 (0.69%) Oracle SOA Suite
2 1 (0.69%) Oracle Workflow
2 1 (0.69%) WebLogic
Business Applications
1 2 (1.38%) Distributed Ledger
Cloud Services
1 45 (31.03%) AWS
2 19 (13.10%) Azure
3 16 (11.03%) AWS Lambda
3 16 (11.03%) Serverless
4 15 (10.34%) GCP
5 14 (9.66%) SaaS
6 11 (7.59%) Amazon S3
7 5 (3.45%) Fastly
7 5 (3.45%) GitHub
8 2 (1.38%) npm
Communications & Networking
1 43 (29.66%) TCP/IP
2 41 (28.28%) Firewall
3 40 (27.59%) Wireshark
4 8 (5.52%) HTTP
5 1 (0.69%) Internet
Database & Business Intelligence
1 16 (11.03%) SQL Server
2 13 (8.97%) MongoDB
3 12 (8.28%) NoSQL
4 10 (6.90%) Blockchain
5 8 (5.52%) PostgreSQL
6 7 (4.83%) MySQL
7 4 (2.76%) Relational Database
7 4 (2.76%) SQL Server 2017
Development Applications
1 39 (26.90%) Git (software)
2 23 (15.86%) Octopus Deploy
2 23 (15.86%) TeamCity
3 21 (14.48%) Jenkins
4 18 (12.41%) webpack
5 9 (6.21%) Maven
6 7 (4.83%) gulp
6 7 (4.83%) Jasmine
7 4 (2.76%) git-flow
7 4 (2.76%) Visual Studio
8 2 (1.38%) Babel
8 2 (1.38%) Grunt
9 1 (0.69%) Cucumber
9 1 (0.69%) Gatling
9 1 (0.69%) Gradle
9 1 (0.69%) JMeter
9 1 (0.69%) JUnit
9 1 (0.69%) Mocha
9 1 (0.69%) Travis CI
9 1 (0.69%) Zephyr
General
1 17 (11.72%) Finance
2 8 (5.52%) Back Office
3 2 (1.38%) Banking
3 2 (1.38%) Games
3 2 (1.38%) Public Sector
4 1 (0.69%) Front Office
4 1 (0.69%) Investment Banking
4 1 (0.69%) Retail
Job Titles
1 101 (69.66%) Developer
2 28 (19.31%) Full Stack Developer
3 21 (14.48%) Consultant
3 21 (14.48%) React Developer
4 20 (13.79%) C# Developer
4 20 (13.79%) Senior Developer
4 20 (13.79%) Support Engineer
4 20 (13.79%) Technical Consultant
4 20 (13.79%) Technical Leader
5 19 (13.10%) JavaScript Developer
5 19 (13.10%) Software Engineer
6 17 (11.72%) Lead Software Engineer
7 16 (11.03%) Lead Developer
7 16 (11.03%) Software Support Engineer
8 15 (10.34%) C# WPF Developer
8 15 (10.34%) Node.js Developer
8 15 (10.34%) WPF Developer
9 14 (9.66%) Front End Developer (Client-Side Developer)
9 14 (9.66%) Technical Developer
10 11 (7.59%) Java Developer
Libraries, Frameworks & Software Standards
1 51 (35.17%) REST
2 50 (34.48%) HTML
3 46 (31.72%) HTML5
4 44 (30.34%) CSS
5 38 (26.21%) React
6 37 (25.52%) Node.js
7 34 (23.45%) .NET
8 30 (20.69%) GraphQL
9 25 (17.24%) Redux
10 22 (15.17%) Sass
11 21 (14.48%) SignalR
12 20 (13.79%) Reactive Extensions
13 19 (13.10%) Twitter Bootstrap
13 19 (13.10%) Web Services
13 19 (13.10%) WPF
14 16 (11.03%) .NET Core
14 16 (11.03%) AngularJS
15 14 (9.66%) Middleware
15 14 (9.66%) React Native
16 13 (8.97%) Jest
Miscellaneous
1 27 (18.62%) User Experience
2 9 (6.21%) Foreign Exchange (FX)
2 9 (6.21%) Greenfield Project
3 4 (2.76%) Graphic Design
4 1 (0.69%) Analytical Skills
4 1 (0.69%) Blog
4 1 (0.69%) Derivative
4 1 (0.69%) Equities
4 1 (0.69%) Hedge funds
4 1 (0.69%) Self-Motivation
4 1 (0.69%) Virtual Team
Operating Systems
1 49 (33.79%) Linux
2 42 (28.97%) Android
2 42 (28.97%) Apple iOS
2 42 (28.97%) Windows
Processes & Methodologies
1 61 (42.07%) Agile Software Development
2 56 (38.62%) TDD
3 49 (33.79%) Software Engineering
4 43 (29.66%) Analytics
5 38 (26.21%) Microservices
6 29 (20.00%) Fintech
6 29 (20.00%) Test Automation
7 26 (17.93%) Kanban
8 22 (15.17%) DevOps
9 20 (13.79%) Front End Development
10 18 (12.41%) Event-Driven Architecture
11 12 (8.28%) Visualisation
12 11 (7.59%) API Development
12 11 (7.59%) Continuous Integration
12 11 (7.59%) Machine Learning
12 11 (7.59%) Multithreading
12 11 (7.59%) Scrum
13 10 (6.90%) Cybersecurity
14 9 (6.21%) Computer Science
14 9 (6.21%) Memory Management
Programming Languages
1 71 (48.97%) JavaScript
2 68 (46.90%) C#
3 64 (44.14%) Java
4 59 (40.69%) Python
5 15 (10.34%) ES6
6 11 (7.59%) Java 8
6 11 (7.59%) TypeScript
7 7 (4.83%) Go
7 7 (4.83%) PHP
7 7 (4.83%) SQL
8 5 (3.45%) ES7
9 4 (2.76%) T-SQL
10 2 (1.38%) Objective-C
11 1 (0.69%) C
11 1 (0.69%) Shell Script
Qualifications
1 5 (3.45%) Degree
2 3 (2.07%) Computer Science Degree
Quality Assurance & Compliance
1 8 (5.52%) QA
System Software
1 15 (10.34%) Docker
Systems Management
1 11 (7.59%) Kubernetes
Vendors
1 9 (6.21%) TIBCO
2 7 (4.83%) Google
3 4 (2.76%) GrapeCity
3 4 (2.76%) Microsoft
3 4 (2.76%) New Relic
4 2 (1.38%) Oracle