Period
to 19 February 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 19 February 2018 with a comparison to the same period in the previous 2 years.

WebSockets
England > London
6 months to
19 Feb 2018
Same period 2017 Same period 2016
Rank 486 603 799
Rank change year-on-year +117 +196 +45
Permanent jobs citing WebSockets 348 192 109
As % of all permanent IT jobs advertised in London 0.50% 0.28% 0.13%
As % of the Libraries, Frameworks & Software Standards category 1.24% 0.69% 0.33%
Number of salaries quoted 266 152 108
London median annual salary £75,000 £70,000 £62,500
Median salary % change year-on-year +7.14% +12.00% +25.00%
10th Percentile £48,750 £46,250 £42,500
90th Percentile £100,000 £100,000 £92,500
England median annual salary £65,000 £55,000 £57,500
% change year-on-year +18.18% -4.35% +15.00%

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 28,095 27,671 33,311
As % of all permanent IT jobs advertised in London 40.20% 40.04% 38.85%
Number of salaries quoted 23,563 24,170 28,785
London median annual salary £60,000 £60,000 £55,000
Median salary % change year-on-year - +9.09% -
10th Percentile £37,500 £35,000 £35,000
90th Percentile £90,000 £87,500 £85,000
England median annual salary £50,000 £47,500 £46,000
% change year-on-year +5.26% +3.26% +2.22%

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 19 February 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 19 February 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 +22 63 £70,000 +7.69% 10
North London +17 17 £75,000 +100.00%
East London -7 3 £50,000 - 2
WebSockets
England

For the 6 months to 19 February 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.

1 186 (53.45%) JavaScript
2 167 (47.99%) Agile Software Development
3 135 (38.79%) React
4 130 (37.36%) RESTful
5 127 (36.49%) REST
6 120 (34.48%) Java
7 116 (33.33%) Finance
8 107 (30.75%) C#
9 105 (30.17%) NoSQL
10 97 (27.87%) HTML
11 94 (27.01%) AngularJS
12 87 (25.00%) CSS
13 85 (24.43%) .NET
14 84 (24.14%) OO
15 83 (23.85%) Scrum
16 81 (23.28%) Software Engineering
17 80 (22.99%) Node.js
18 79 (22.70%) PostgreSQL
19 78 (22.41%) Test Automation
20 77 (22.13%) SQL
20 77 (22.13%) Microservices
21 76 (21.84%) Front End Development
22 74 (21.26%) Docker
23 72 (20.69%) HTML5
24 69 (19.83%) F#
25 61 (17.53%) JSON
26 60 (17.24%) Python
27 59 (16.95%) Greenfield Project
28 55 (15.80%) ES6
29 53 (15.23%) MongoDB

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 25 (7.18%) Confluence
2 18 (5.17%) Apache
2 18 (5.17%) Elasticsearch
3 9 (2.59%) Ethereum
4 8 (2.30%) nginx
5 7 (2.01%) CMS
6 1 (0.29%) Apache Spark
6 1 (0.29%) Gunicorn
6 1 (0.29%) Hyperledger
Business Applications
1 7 (2.01%) RMDS
2 6 (1.72%) Distributed Ledger
Cloud Services
1 40 (11.49%) Amazon AWS
2 36 (10.34%) GitHub
3 35 (10.06%) npm
4 18 (5.17%) IaaS
5 17 (4.89%) Slack
5 17 (4.89%) Trello
6 14 (4.02%) Microsoft Azure
7 8 (2.30%) SaaS
8 5 (1.44%) Cloud Computing
8 5 (1.44%) Google Cloud Platform
9 3 (0.86%) Google App Engine
Communications & Networking
1 27 (7.76%) HTTP
2 19 (5.46%) Internet
3 8 (2.30%) Cisco IOS
3 8 (2.30%) HTTPS
3 8 (2.30%) VoIP
3 8 (2.30%) VSAT
4 7 (2.01%) Multicast
5 5 (1.44%) SMS
6 1 (0.29%) TCP/IP
6 1 (0.29%) Value-Added Service
Database & Business Intelligence
1 105 (30.17%) NoSQL
2 79 (22.70%) PostgreSQL
3 53 (15.23%) MongoDB
4 32 (9.20%) Event Store
5 23 (6.61%) Big Data
5 23 (6.61%) MySQL
6 22 (6.32%) Relational Database
7 21 (6.03%) Infinispan
8 15 (4.31%) Blockchain
9 14 (4.02%) Redis
10 10 (2.87%) Apache Cassandra
11 5 (1.44%) Aerospike
11 5 (1.44%) Cloud Spanner
11 5 (1.44%) NewSQL
11 5 (1.44%) SQL Server
12 4 (1.15%) KDB
12 4 (1.15%) Kdb+
13 3 (0.86%) RethinkDB
14 2 (0.57%) Hadoop
14 2 (0.57%) Neo4j
Development Applications
1 45 (12.93%) Jenkins
2 40 (11.49%) Git (software)
3 37 (10.63%) webpack
4 35 (10.06%) JIRA
5 34 (9.77%) Cucumber
5 34 (9.77%) Jasmine
6 32 (9.20%) Atlassian Bamboo
6 32 (9.20%) Octopus Deploy
7 24 (6.90%) JUnit
8 22 (6.32%) Maven
9 20 (5.75%) gulp
10 18 (5.17%) FishEye
10 18 (5.17%) IntelliJ
11 17 (4.89%) Grunt
12 13 (3.74%) Karma Test Runner
12 13 (3.74%) Protractor
13 12 (3.45%) Gradle
13 12 (3.45%) Visual Studio Team System
14 10 (2.87%) Selenium
15 9 (2.59%) WebDriver
General
1 116 (33.33%) Finance
2 51 (14.66%) Banking
3 39 (11.21%) Investment Banking
4 22 (6.32%) Retail
5 16 (4.60%) Retail Banking
6 9 (2.59%) Telecoms
7 7 (2.01%) Advertising
7 7 (2.01%) Front Office
8 5 (1.44%) Games
8 5 (1.44%) Multimedia
9 3 (0.86%) Back Office
10 2 (0.57%) Legal
11 1 (0.29%) Financial Institution
11 1 (0.29%) iGaming
11 1 (0.29%) Law
11 1 (0.29%) Prime Brokerage
11 1 (0.29%) Publishing
Job Titles
1 239 (68.68%) Developer
2 63 (18.10%) JavaScript Developer
3 53 (15.23%) React Developer
4 47 (13.51%) Java Developer
4 47 (13.51%) Senior Developer
5 46 (13.22%) Front End Developer (Client-Side Developer)
6 44 (12.64%) Full Stack Developer
6 44 (12.64%) Software Engineer
7 36 (10.34%) Python Developer
8 23 (6.61%) JavaScript Engineer
9 19 (5.46%) C# Developer
9 19 (5.46%) HTML Developer
10 18 (5.17%) Senior JavaScript Developer
11 15 (4.31%) Senior React Developer
12 14 (4.02%) .NET Software Engineer
12 14 (4.02%) Linux Developer
12 14 (4.02%) Senior C# Developer
13 13 (3.74%) Java Engineer
14 11 (3.16%) iOS Developer
14 11 (3.16%) Web Developer
Libraries, Frameworks & Software Standards
1 135 (38.79%) React
2 130 (37.36%) RESTful
3 127 (36.49%) REST
4 97 (27.87%) HTML
5 94 (27.01%) AngularJS
6 87 (25.00%) CSS
7 85 (24.43%) .NET
8 80 (22.99%) Node.js
9 72 (20.69%) HTML5
10 61 (17.53%) JSON
11 53 (15.23%) CSS3
12 48 (13.79%) jQuery
13 41 (11.78%) Kafka
14 40 (11.49%) Web Services
15 37 (10.63%) Akka
16 36 (10.34%) Sass
17 34 (9.77%) ASP.NET Web API
18 33 (9.48%) Ajax
18 33 (9.48%) Redux
19 27 (7.76%) Java EE
Miscellaneous
1 59 (16.95%) Greenfield Project
2 40 (11.49%) Client/Server
3 29 (8.33%) Computer Science
4 24 (6.90%) Foreign Exchange (FX)
5 19 (5.46%) User Experience
6 18 (5.17%) Algorithms
7 15 (4.31%) Fintech
8 13 (3.74%) Spread Betting
9 12 (3.45%) Analytical Skills
9 12 (3.45%) Enterprise Software
10 11 (3.16%) Hedge funds
11 10 (2.87%) Data Structures
12 9 (2.59%) Linux Command Line
12 9 (2.59%) Mobile App
13 6 (1.72%) Bitcoin
13 6 (1.72%) Fixed Income
14 5 (1.44%) Equities
14 5 (1.44%) Private Cloud
15 4 (1.15%) Derivative
16 3 (0.86%) Virtual Team
Operating Systems
1 48 (13.79%) Linux
2 35 (10.06%) Apple iOS
3 22 (6.32%) Windows
4 17 (4.89%) Unix
5 16 (4.60%) Android
6 12 (3.45%) Windows 10
7 3 (0.86%) Ubuntu
Processes & Methodologies
1 167 (47.99%) Agile Software Development
2 84 (24.14%) OO
3 83 (23.85%) Scrum
4 81 (23.28%) Software Engineering
5 78 (22.41%) Test Automation
6 77 (22.13%) Microservices
7 76 (21.84%) Front End Development
8 51 (14.66%) Asset Management
9 48 (13.79%) Continuous Integration
10 45 (12.93%) BDD
10 45 (12.93%) Low Latency
11 42 (12.07%) High-Frequency Trading
12 41 (11.78%) TDD
13 40 (11.49%) Continuous Improvement
14 37 (10.63%) Event-Driven Architecture
15 36 (10.34%) Mathematics
16 35 (10.06%) Multithreading
17 34 (9.77%) High Availability
18 32 (9.20%) Knowledge Management
19 30 (8.62%) Web Development
Programming Languages
1 186 (53.45%) JavaScript
2 120 (34.48%) Java
3 107 (30.75%) C#
4 77 (22.13%) SQL
5 69 (19.83%) F#
6 60 (17.24%) Python
7 55 (15.80%) ES6
8 45 (12.93%) TypeScript
9 24 (6.90%) C++
10 23 (6.61%) Go
11 16 (4.60%) PowerShell
12 15 (4.31%) PHP
13 12 (3.45%) Scala
14 9 (2.59%) Apple Swift
15 8 (2.30%) Objective-C
16 7 (2.01%) GraphQL
16 7 (2.01%) Haskell
16 7 (2.01%) Perl
16 7 (2.01%) Ruby
17 5 (1.44%) ES7
Qualifications
1 47 (13.51%) Degree
2 11 (3.16%) Computer Science Degree
3 4 (1.15%) SC Cleared
3 4 (1.15%) Security Cleared
Quality Assurance & Compliance
1 49 (14.08%) QA
2 4 (1.15%) WCAG
3 1 (0.29%) GDPR
System Software
1 74 (21.26%) Docker
Systems Management
1 9 (2.59%) Kubernetes
2 2 (0.57%) Docker Swarm
Vendors
1 24 (6.90%) Red Hat
2 12 (3.45%) Xamarin
3 10 (2.87%) Google
3 10 (2.87%) Microsoft
4 8 (2.30%) Cisco
5 7 (2.01%) Reuters
6 3 (0.86%) Facebook
7 2 (0.57%) Splunk