Period
to 16 November 2018

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for JSON skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited JSON over the 6 months to 16 November 2018 with a comparison to the same period in the previous 2 years.

JSON
Central London > City of London
6 months to
16 Nov 2018
Same period 2017 Same period 2016
Rank 148 179 157
Rank change year-on-year +31 -22 -9
Permanent jobs citing JSON 227 166 224
As % of all permanent IT jobs advertised in the City of London 2.03% 1.63% 1.91%
As % of the Libraries, Frameworks & Software Standards category 4.72% 4.12% 4.61%
Number of salaries quoted 199 156 217
City of London median annual salary £70,000 £57,500 £60,000
Median salary % change year-on-year +21.74% -4.17% +9.09%
10th Percentile £42,250 £34,250 £37,000
90th Percentile £94,000 £88,750 £80,000
Central London median annual salary £70,000 £55,000 £57,500
% change year-on-year +27.27% -4.35% +4.55%

JSON 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 the City of London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
City of London
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 4,807 4,032 4,858
As % of all permanent IT jobs advertised in the City of London 43.05% 39.49% 41.44%
Number of salaries quoted 4,391 3,648 4,481
City of London median annual salary £65,000 £62,500 £60,000
Median salary % change year-on-year +4.00% +4.17% +4.35%
10th Percentile £42,500 £40,000 £38,250
90th Percentile £93,750 £90,375 £87,500
Central London median annual salary £65,000 £60,000 £57,500
% change year-on-year +8.33% +4.35% -

JSON
Job Vacancy Trend in the City of London

Job postings citing JSON as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for JSON in the City of London

JSON
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing JSON in the City of London.

Salary trend for JSON in the City of London

JSON
Salary Histogram in the City of London

The salary distribution of IT jobs citing JSON in the City of London over the 6 months to 16 November 2018.

Salary histogram for JSON in the City of London

For the 6 months to 16 November 2018, IT jobs citing JSON 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 City of London region with a requirement for JSON.

1 130 (57.27%) JavaScript
2 113 (49.78%) HTML
2 113 (49.78%) XML
3 107 (47.14%) Agile Software Development
4 96 (42.29%) CSS
4 96 (42.29%) REST
5 92 (40.53%) SQL
6 76 (33.48%) C#
7 73 (32.16%) .NET
8 68 (29.96%) Git (software)
9 65 (28.63%) Finance
10 63 (27.75%) Java
11 62 (27.31%) Microsoft Azure
12 59 (25.99%) Web Services
13 56 (24.67%) Scrum
13 56 (24.67%) HTML5
14 54 (23.79%) CSS3
14 54 (23.79%) jQuery
15 53 (23.35%) SOAP
15 53 (23.35%) SQL Server
16 51 (22.47%) TDD
17 48 (21.15%) Oracle
18 46 (20.26%) AngularJS
18 46 (20.26%) DevOps
19 45 (19.82%) Microservices
19 45 (19.82%) RESTful
20 42 (18.50%) Linux
21 40 (17.62%) OO
22 38 (16.74%) Web Development
23 37 (16.30%) Relational Database

JSON
Co-occurring IT Skills in the City of 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 (11.01%) CMS
2 21 (9.25%) Mule
3 13 (5.73%) SharePoint
4 10 (4.41%) Elasticsearch
5 7 (3.08%) Confluence
6 6 (2.64%) Tomcat
7 5 (2.20%) Apache Spark
7 5 (2.20%) Apache TomEE
7 5 (2.20%) JBoss
7 5 (2.20%) WebSphere
7 5 (2.20%) WordPress
8 4 (1.76%) Adobe Experience Manager
8 4 (1.76%) EPiServer
8 4 (1.76%) MS Exchange
8 4 (1.76%) Sitecore CMS
8 4 (1.76%) Umbraco
9 3 (1.32%) Apache
9 3 (1.32%) Oracle SOA Suite
10 2 (0.88%) IBM Notes
10 2 (0.88%) IIS
Applications
1 5 (2.20%) Microsoft Excel
2 4 (1.76%) Microsoft Office
3 1 (0.44%) Adobe Illustrator
3 1 (0.44%) MS Visio
3 1 (0.44%) Photoshop
Business Applications
1 6 (2.64%) Dynamics CRM
Cloud Services
1 62 (27.31%) Microsoft Azure
2 32 (14.10%) SaaS
3 29 (12.78%) Amazon AWS
4 28 (12.33%) PaaS
5 25 (11.01%) Apigee
6 21 (9.25%) Boomi
7 18 (7.93%) GitHub
8 12 (5.29%) Amazon EC2
9 10 (4.41%) Azure Active Directory
10 9 (3.96%) Amazon S3
10 9 (3.96%) Cloud Computing
10 9 (3.96%) IaaS
11 8 (3.52%) npm
12 7 (3.08%) Amazon SQS
13 5 (2.20%) Azure Data Factory
13 5 (2.20%) NuGet
13 5 (2.20%) OpenShift
13 5 (2.20%) Serverless
14 4 (1.76%) Amazon CloudWatch
14 4 (1.76%) Azure Machine Learning
Communications & Networking
1 11 (4.85%) Firewall
2 10 (4.41%) VPN
3 6 (2.64%) VLAN
4 5 (2.20%) HTTP
4 5 (2.20%) Internet
5 4 (1.76%) BGP
5 4 (1.76%) HTTPS
5 4 (1.76%) SAN
5 4 (1.76%) Wireless
5 4 (1.76%) WLAN
6 2 (0.88%) DSL
6 2 (0.88%) Network Security
6 2 (0.88%) SMS
6 2 (0.88%) SSH
7 1 (0.44%) AMQP
7 1 (0.44%) Bluetooth
7 1 (0.44%) DNS
7 1 (0.44%) Multicast
7 1 (0.44%) TCP/IP
Database & Business Intelligence
1 53 (23.35%) SQL Server
2 37 (16.30%) Relational Database
3 29 (12.78%) MySQL
4 25 (11.01%) Data Warehouse
5 16 (7.05%) NoSQL
5 16 (7.05%) SQL Server Integration Services
6 13 (5.73%) PostgreSQL
7 12 (5.29%) SQL Server Reporting Services
8 11 (4.85%) Azure SQL Database
8 11 (4.85%) Oracle Reports
9 9 (3.96%) Big Data
10 8 (3.52%) Amazon RDS
10 8 (3.52%) RDBMS
11 7 (3.08%) MongoDB
11 7 (3.08%) SQL Server 2012
12 6 (2.64%) Text Mining
13 5 (2.20%) Apache Hive
13 5 (2.20%) Hadoop
13 5 (2.20%) Microsoft Analysis Services
13 5 (2.20%) SQL Server Analysis Services
Development Applications
1 68 (29.96%) Git (software)
2 30 (13.22%) Selenium
3 21 (9.25%) Visual Studio
4 13 (5.73%) Cucumber
4 13 (5.73%) WebDriver
5 12 (5.29%) Subversion
6 11 (4.85%) Gradle
6 11 (4.85%) Jenkins
7 10 (4.41%) gulp
7 10 (4.41%) TeamCity
8 9 (3.96%) Grunt
8 9 (3.96%) Maven
8 9 (3.96%) Team Foundation Server
9 8 (3.52%) Ant
9 8 (3.52%) Jasmine
9 8 (3.52%) JIRA
9 8 (3.52%) NUnit
10 7 (3.08%) JUnit
10 7 (3.08%) SpecFlow
11 5 (2.20%) Mockito
General
1 65 (28.63%) Finance
2 25 (11.01%) Banking
3 19 (8.37%) Advertising
4 16 (7.05%) Marketing
5 13 (5.73%) Law
6 11 (4.85%) Back Office
7 7 (3.08%) Automotive
8 6 (2.64%) Pharmaceutical
8 6 (2.64%) Retail
9 5 (2.20%) Games
9 5 (2.20%) Publishing
10 4 (1.76%) Legal
11 3 (1.32%) Corporate Banking
11 3 (1.32%) Investment Banking
12 2 (0.88%) Front Office
13 1 (0.44%) Financial Institution
13 1 (0.44%) Wholesale Banking
Job Titles
1 125 (55.07%) Developer
2 55 (24.23%) Architect
3 33 (14.54%) Senior Developer
4 31 (13.66%) Solutions Architect
5 20 (8.81%) Lead Developer
6 19 (8.37%) .NET Architect
6 19 (8.37%) .NET Solutions Architect
6 19 (8.37%) Integration Architect
6 19 (8.37%) PHP Developer
7 16 (7.05%) .NET Developer
8 15 (6.61%) Enterprise Architect
8 15 (6.61%) Java Developer
9 14 (6.17%) Cloud Architect
9 14 (6.17%) Front End Developer (Client-Side Developer)
10 13 (5.73%) Enterprise Integration Architect
11 11 (4.85%) Senior Java Developer
12 10 (4.41%) Full Stack Developer
12 10 (4.41%) PHP Laravel Developer
13 9 (3.96%) Python Developer
13 9 (3.96%) QA Engineer
Libraries, Frameworks & Software Standards
1 113 (49.78%) HTML
1 113 (49.78%) XML
2 96 (42.29%) CSS
2 96 (42.29%) REST
3 73 (32.16%) .NET
4 59 (25.99%) Web Services
5 56 (24.67%) HTML5
6 54 (23.79%) CSS3
6 54 (23.79%) jQuery
7 53 (23.35%) SOAP
8 46 (20.26%) AngularJS
9 45 (19.82%) RESTful
10 26 (11.45%) Twitter Bootstrap
11 25 (11.01%) Node.js
12 24 (10.57%) Spring
13 21 (9.25%) React
14 20 (8.81%) Sass
15 18 (7.93%) .NET Framework
16 17 (7.49%) Laravel
17 16 (7.05%) Vue.js
Miscellaneous
1 34 (14.98%) User Experience
2 17 (7.49%) Greenfield Project
3 13 (5.73%) Fintech
4 12 (5.29%) Analytical Skills
5 10 (4.41%) Fixed Income
6 8 (3.52%) Public Cloud
7 6 (2.64%) Life Science
7 6 (2.64%) W3C
8 5 (2.20%) Computer Science
9 3 (1.32%) Derivative
9 3 (1.32%) Foreign Exchange (FX)
9 3 (1.32%) Mobile App
9 3 (1.32%) Video on Demand
10 2 (0.88%) Data Structures
10 2 (0.88%) Interest Rate Derivative
10 2 (0.88%) Linux Command Line
10 2 (0.88%) Mobile Payment
10 2 (0.88%) Reinsurance
10 2 (0.88%) Self-Motivation
10 2 (0.88%) Video\Live Streaming
Operating Systems
1 42 (18.50%) Linux
2 23 (10.13%) Windows
3 10 (4.41%) Unix
3 10 (4.41%) Windows Server
4 5 (2.20%) Android
5 3 (1.32%) Apple iOS
6 2 (0.88%) Red Hat Enterprise Linux
7 1 (0.44%) AIX
7 1 (0.44%) HPUX
7 1 (0.44%) Mac OS X
7 1 (0.44%) Solaris
Processes & Methodologies
1 107 (47.14%) Agile Software Development
2 56 (24.67%) Scrum
3 51 (22.47%) TDD
4 46 (20.26%) DevOps
5 45 (19.82%) Microservices
6 40 (17.62%) OO
7 38 (16.74%) Web Development
8 34 (14.98%) API Design
9 33 (14.54%) Business Intelligence
10 32 (14.10%) Analytics
10 32 (14.10%) BDD
11 31 (13.66%) Machine Learning
11 31 (13.66%) SDLC
12 29 (12.78%) MVC
13 28 (12.33%) Problem-Solving
14 25 (11.01%) Continuous Integration
15 22 (9.69%) Artificial Intelligence
15 22 (9.69%) Waterfall
16 21 (9.25%) Test Automation
17 20 (8.81%) E-Commerce
Programming Languages
1 130 (57.27%) JavaScript
2 92 (40.53%) SQL
3 76 (33.48%) C#
4 63 (27.75%) Java
5 34 (14.98%) Python
6 31 (13.66%) PHP
7 20 (8.81%) PowerShell
8 11 (4.85%) PHP 7
9 10 (4.41%) PL/SQL
10 9 (3.96%) Bash Shell
10 9 (3.96%) Ruby
11 8 (3.52%) C++
11 8 (3.52%) T-SQL
11 8 (3.52%) TypeScript
12 7 (3.08%) ES6
12 7 (3.08%) Perl
12 7 (3.08%) Shell Script
13 6 (2.64%) Java 8
14 3 (1.32%) Apple Swift
14 3 (1.32%) Kotlin
Qualifications
1 16 (7.05%) Degree
2 7 (3.08%) MCSA
2 7 (3.08%) MCSE
2 7 (3.08%) Microsoft Certification
3 5 (2.20%) AWS Certification
Quality Assurance & Compliance
1 29 (12.78%) QA
2 7 (3.08%) MiFID
3 6 (2.64%) WCAG
4 2 (0.88%) PMO
5 1 (0.44%) Data Quality
System Software
1 10 (4.41%) Active Directory
1 10 (4.41%) Docker
2 9 (3.96%) Hyper-V
3 5 (2.20%) VMware Infrastructure
4 4 (1.76%) Microsoft Virtual Server
4 4 (1.76%) Virtual Machines
4 4 (1.76%) Virtual Servers
5 1 (0.44%) XenServer
Systems Management
1 8 (3.52%) Opscode Chef
2 6 (2.64%) Ansible
3 5 (2.20%) Puppet
4 4 (1.76%) Backup Exec
4 4 (1.76%) Salt
4 4 (1.76%) SCCM
5 1 (0.44%) Docker Swarm
5 1 (0.44%) HP ALM
5 1 (0.44%) Kubernetes
5 1 (0.44%) Suricata
5 1 (0.44%) Terraform
Vendors
1 48 (21.15%) Oracle
2 35 (15.42%) Microsoft
3 23 (10.13%) Red Hat
4 22 (9.69%) TIBCO
5 21 (9.25%) Axway
6 10 (4.41%) Remedy
7 8 (3.52%) Citrix
8 5 (2.20%) Adobe
8 5 (2.20%) Sitecore
8 5 (2.20%) VMware
9 4 (1.76%) SaltStack
9 4 (1.76%) Veeam
10 3 (1.32%) Atlassian
10 3 (1.32%) HP
11 2 (0.88%) Databricks
11 2 (0.88%) Google
11 2 (0.88%) Lotus
11 2 (0.88%) Splunk
11 2 (0.88%) Tableau
12 1 (0.44%) Borland