Period
to 20 September 2019

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 September 2019 with a comparison to the same period in the previous 2 years.

WebSockets
England > London
6 months to
20 Sep 2019
Same period 2018 Same period 2017
Rank 535 534 550
Rank change year-on-year -1 +16 +137
Permanent jobs citing WebSockets 203 292 335
As % of all permanent IT jobs advertised in London 0.36% 0.43% 0.45%
As % of the Libraries, Frameworks & Software Standards category 0.93% 1.04% 1.14%
Number of salaries quoted 179 219 251
London median annual salary £70,000 £70,000 £67,500
Median salary % change year-on-year - +3.70% +12.50%
10th Percentile £45,000 £53,750 £47,500
90th Percentile £100,000 £102,000 £100,000
England median annual salary £57,500 £70,000 £60,000
% change year-on-year -17.86% +16.67% +9.09%

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 21,798 28,010 29,315
As % of all permanent IT jobs advertised in London 39.01% 40.79% 39.11%
Number of salaries quoted 18,170 22,903 23,742
London median annual salary £67,500 £65,000 £60,000
Median salary % change year-on-year +3.85% +8.33% +4.35%
10th Percentile £40,000 £37,500 £36,250
90th Percentile £100,000 £95,000 £90,000
England median annual salary £55,000 £51,500 £50,000
% change year-on-year +6.80% +3.00% +5.26%

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 September 2019.

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 September 2019. 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 +33 50 £70,000 +21.74% 14
West London +23 2 £55,000 -27.87% 9
East London +21 2 £41,000 -34.40%
South London -4 1 £40,000 -44.83% 1
WebSockets
England

For the 6 months to 20 September 2019, 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 92 (45.32%) Agile Software Development
2 79 (38.92%) AngularJS
3 77 (37.93%) Finance
4 71 (34.98%) SQL
5 70 (34.48%) React
6 63 (31.03%) Linux
7 60 (29.56%) Fintech
8 59 (29.06%) JavaScript
9 58 (28.57%) Java
10 56 (27.59%) Python
10 56 (27.59%) Front End Development
11 54 (26.60%) SignalR
12 46 (22.66%) C#
12 46 (22.66%) Docker
13 44 (21.67%) AWS
14 43 (21.18%) REST
14 43 (21.18%) User Experience
15 41 (20.20%) .NET
16 40 (19.70%) PostgreSQL
17 37 (18.23%) Azure
18 36 (17.73%) Problem-Solving
19 35 (17.24%) QA
19 35 (17.24%) HTML
20 33 (16.26%) TypeScript
21 32 (15.76%) React Native
22 31 (15.27%) Microservices
22 31 (15.27%) CSS
23 30 (14.78%) RESTful
24 29 (14.29%) Scrum
25 26 (12.81%) .NET Core

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 16 (7.88%) Elasticsearch
2 5 (2.46%) Confluence
3 4 (1.97%) Apache Spark
4 2 (0.99%) Ethereum
5 1 (0.49%) Gunicorn
Cloud Services
1 44 (21.67%) AWS
2 37 (18.23%) Azure
3 11 (5.42%) GitHub
4 8 (3.94%) Amazon S3
5 6 (2.96%) Amazon SQS
5 6 (2.96%) GCP
6 5 (2.46%) OpenShift
7 4 (1.97%) Amazon EC2
7 4 (1.97%) Amazon ECS
7 4 (1.97%) Amazon ElastiCache
7 4 (1.97%) AWS Fargate
7 4 (1.97%) AWS Lambda
7 4 (1.97%) CloudFront
7 4 (1.97%) PaaS
7 4 (1.97%) Serverless
8 3 (1.48%) Cloud Computing
9 1 (0.49%) npm
Communications & Networking
1 14 (6.90%) RTMP
2 13 (6.40%) HTTP
3 11 (5.42%) TCP/IP
4 10 (4.93%) Internet
5 8 (3.94%) Reverse Proxy
6 6 (2.96%) DNS
6 6 (2.96%) Firewall
6 6 (2.96%) STUN
6 6 (2.96%) VoIP
7 5 (2.46%) SNMP
7 5 (2.46%) SSH
8 3 (1.48%) Broadband
9 2 (0.99%) Ethernet
9 2 (0.99%) MPLS
9 2 (0.99%) VPN
10 1 (0.49%) Bluetooth
Database & Business Intelligence
1 40 (19.70%) PostgreSQL
2 18 (8.87%) MySQL
2 18 (8.87%) NoSQL
3 17 (8.37%) Redis
4 8 (3.94%) Hadoop
5 7 (3.45%) Blockchain
5 7 (3.45%) Relational Database
6 6 (2.96%) Big Data
6 6 (2.96%) SQLite
7 4 (1.97%) Amazon RDS
7 4 (1.97%) Apache Hive
7 4 (1.97%) MariaDB
7 4 (1.97%) Presto
8 3 (1.48%) Aerospike
8 3 (1.48%) MongoDB
9 2 (0.99%) Amazon Redshift
9 2 (0.99%) SQL Server
10 1 (0.49%) Event Store
10 1 (0.49%) VoltDB
Development Applications
1 25 (12.32%) Git (software)
2 22 (10.84%) webpack
3 15 (7.39%) Jenkins
3 15 (7.39%) JIRA
4 11 (5.42%) Jasmine
5 9 (4.43%) Selenium
6 6 (2.96%) Gradle
7 5 (2.46%) Bitbucket
8 4 (1.97%) Ant
8 4 (1.97%) Karma Test Runner
8 4 (1.97%) Mercurial
8 4 (1.97%) Mocha
9 3 (1.48%) Cucumber
9 3 (1.48%) Maven
9 3 (1.48%) PhantomJS
10 2 (0.99%) git-flow
10 2 (0.99%) gulp
10 2 (0.99%) Octopus Deploy
11 1 (0.49%) Bundler
11 1 (0.49%) Protractor
General
1 77 (37.93%) Finance
2 21 (10.34%) Front Office
3 13 (6.40%) Banking
4 11 (5.42%) Investment Banking
5 6 (2.96%) Telecoms
6 2 (0.99%) Financial Institution
7 1 (0.49%) Games
7 1 (0.49%) Multimedia
7 1 (0.49%) Public Sector
7 1 (0.49%) Retail
Job Titles
1 174 (85.71%) Developer
2 56 (27.59%) Senior Developer
3 45 (22.17%) Front End Developer (Client-Side Developer)
4 26 (12.81%) Senior Front-End Developer
5 23 (11.33%) Java Developer
6 22 (10.84%) React Developer
7 20 (9.85%) Full Stack Developer
8 18 (8.87%) C# Developer
8 18 (8.87%) Python Developer
9 14 (6.90%) C++ Developer
10 13 (6.40%) Angular Developer
10 13 (6.40%) JavaScript Developer
10 13 (6.40%) Python Engineer
11 12 (5.91%) Software Engineer
11 12 (5.91%) Technical Leader
12 11 (5.42%) Lead Developer
12 11 (5.42%) Senior Python Developer
13 10 (4.93%) Developer/Software Engineer
13 10 (4.93%) Python Software Engineer
13 10 (4.93%) Software Developer
Libraries, Frameworks & Software Standards
1 79 (38.92%) AngularJS
2 70 (34.48%) React
3 54 (26.60%) SignalR
4 43 (21.18%) REST
5 41 (20.20%) .NET
6 35 (17.24%) HTML
7 32 (15.76%) React Native
8 31 (15.27%) CSS
9 30 (14.78%) RESTful
10 26 (12.81%) .NET Core
11 24 (11.82%) JSON
12 23 (11.33%) Node.js
13 17 (8.37%) HTML5
13 17 (8.37%) Redux
14 15 (7.39%) Spring
15 14 (6.90%) FFmpeg
15 14 (6.90%) OpenCV
15 14 (6.90%) Reactive Extensions
16 13 (6.40%) RxJS
16 13 (6.40%) Sass
Miscellaneous
1 43 (21.18%) User Experience
2 20 (9.85%) Hedge funds
3 12 (5.91%) Foreign Exchange (FX)
4 9 (4.43%) Greenfield Project
5 8 (3.94%) Equities
6 7 (3.45%) Private Cloud
7 6 (2.96%) Client/Server
7 6 (2.96%) Self-Motivation
8 5 (2.46%) Algorithms
8 5 (2.46%) Analytical Skills
8 5 (2.46%) Blog
8 5 (2.46%) Fixed Income
8 5 (2.46%) Mobile App
8 5 (2.46%) Public Cloud
8 5 (2.46%) Virtual Team
9 3 (1.48%) Spread Betting
10 2 (0.99%) Cyberthreat
10 2 (0.99%) Data Centre
11 1 (0.49%) Data Structures
11 1 (0.49%) Smart Home
Operating Systems
1 63 (31.03%) Linux
2 18 (8.87%) Windows
3 15 (7.39%) Android
4 14 (6.90%) Apple iOS
5 11 (5.42%) Unix
5 11 (5.42%) Windows 10
6 1 (0.49%) Mac OS
Processes & Methodologies
1 92 (45.32%) Agile Software Development
2 60 (29.56%) Fintech
3 56 (27.59%) Front End Development
4 36 (17.73%) Problem-Solving
5 31 (15.27%) Microservices
6 29 (14.29%) Scrum
7 24 (11.82%) TDD
7 24 (11.82%) Test Automation
8 23 (11.33%) Computer Science
9 21 (10.34%) API Design
9 21 (10.34%) DevOps
10 18 (8.87%) Mathematics
11 17 (8.37%) Software Engineering
12 16 (7.88%) Analytics
12 16 (7.88%) Pair Programming
12 16 (7.88%) Web Development
13 15 (7.39%) Business Intelligence
14 14 (6.90%) Video Processing
15 13 (6.40%) Investment Management
15 13 (6.40%) Open Source
Programming Languages
1 71 (34.98%) SQL
2 59 (29.06%) JavaScript
3 58 (28.57%) Java
4 56 (27.59%) Python
5 46 (22.66%) C#
6 33 (16.26%) TypeScript
7 23 (11.33%) C++
8 22 (10.84%) Go
9 20 (9.85%) ES6
10 11 (5.42%) PHP
11 10 (4.93%) Haskell
12 8 (3.94%) Kotlin
13 5 (2.46%) Ruby
13 5 (2.46%) Scala
14 4 (1.97%) Bash Shell
14 4 (1.97%) C
14 4 (1.97%) F#
14 4 (1.97%) PHP 7
15 3 (1.48%) Java 8
15 3 (1.48%) Perl
Qualifications
1 25 (12.32%) Degree
2 11 (5.42%) Security Cleared
3 7 (3.45%) Computer Science Degree
Quality Assurance & Compliance
1 35 (17.24%) QA
System Software
1 46 (22.66%) Docker
Systems Management
1 18 (8.87%) Kubernetes
2 6 (2.96%) Ansible
3 1 (0.49%) Terraform
Vendors
1 14 (6.90%) BT
1 14 (6.90%) Facebook
1 14 (6.90%) Instagram
1 14 (6.90%) Twitter
1 14 (6.90%) YouTube
2 6 (2.96%) Google
3 4 (1.97%) PubNub
3 4 (1.97%) Red Hat
3 4 (1.97%) SendGrid
4 1 (0.49%) Microsoft
4 1 (0.49%) Sencha
4 1 (0.49%) Xamarin