Period
to 15 February 2019

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

JSON
Central London > City of London
6 months to
15 Feb 2019
Same period 2018 Same period 2017
Rank 169 171 173
Rank change year-on-year +2 +2 -42
Permanent jobs citing JSON 185 193 188
As % of all permanent IT jobs advertised in the City of London 1.78% 1.80% 1.79%
As % of the Libraries, Frameworks & Software Standards category 4.10% 4.50% 4.48%
Number of salaries quoted 166 174 180
City of London median annual salary £72,500 £60,000 £57,500
Median salary % change year-on-year +20.83% +4.35% +4.55%
10th Percentile £48,000 £45,000 £33,750
90th Percentile £95,000 £91,750 £78,875
Central London median annual salary £73,750 £60,000 £57,500
% change year-on-year +22.92% +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 4,514 4,291 4,194
As % of all permanent IT jobs advertised in the City of London 43.50% 40.07% 39.91%
Number of salaries quoted 4,079 3,835 3,851
City of London median annual salary £67,500 £62,500 £60,000
Median salary % change year-on-year +8.00% +4.17% +4.35%
10th Percentile £42,500 £40,000 £38,250
90th Percentile £92,500 £92,500 £90,000
Central London median annual salary £65,000 £60,000 £60,000
% 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 15 February 2019.

Salary histogram for JSON in the City of London

For the 6 months to 15 February 2019, 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.

1 100 (54.05%) JavaScript
2 95 (51.35%) Agile Software Development
3 89 (48.11%) REST
4 86 (46.49%) XML
5 79 (42.70%) C#
6 75 (40.54%) SQL
7 74 (40.00%) HTML
8 72 (38.92%) .NET
9 63 (34.05%) CSS
10 59 (31.89%) Web Services
11 57 (30.81%) SQL Server
12 52 (28.11%) Scrum
13 51 (27.57%) Finance
14 46 (24.86%) Microsoft Azure
15 44 (23.78%) SDLC
15 44 (23.78%) SOAP
16 43 (23.24%) Java
17 41 (22.16%) Git (software)
18 40 (21.62%) DevOps
19 39 (21.08%) Analytics
19 39 (21.08%) Microsoft
20 38 (20.54%) Oracle
20 38 (20.54%) Business Intelligence
21 37 (20.00%) TDD
21 37 (20.00%) jQuery
22 33 (17.84%) SQL Server Integration Services
23 31 (16.76%) AngularJS
24 30 (16.22%) RESTful
24 30 (16.22%) MVC
24 30 (16.22%) Data Warehouse

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 16 (8.65%) Mule
2 14 (7.57%) CMS
3 7 (3.78%) Apache TomEE
3 7 (3.78%) Elasticsearch
3 7 (3.78%) JBoss
3 7 (3.78%) WebSphere
4 4 (2.16%) Adobe Experience Manager
5 3 (1.62%) Confluence
5 3 (1.62%) IIS
5 3 (1.62%) Oracle SOA Suite
6 2 (1.08%) IBM Notes
6 2 (1.08%) SharePoint
7 1 (0.54%) Apache
7 1 (0.54%) Apache Solr
7 1 (0.54%) BizTalk Server
7 1 (0.54%) Drupal
7 1 (0.54%) EPiServer
7 1 (0.54%) Sitecore CMS
7 1 (0.54%) Tomcat
7 1 (0.54%) Umbraco
Applications
1 3 (1.62%) Microsoft Excel
2 1 (0.54%) Adobe Creative Suite
2 1 (0.54%) Adobe Illustrator
2 1 (0.54%) Microsoft Office
2 1 (0.54%) Photoshop
Business Applications
1 10 (5.41%) Dynamics CRM
2 1 (0.54%) Eagle PACE
2 1 (0.54%) Magento
2 1 (0.54%) Markit EDM
2 1 (0.54%) Payment Gateway
Cloud Services
1 46 (24.86%) Microsoft Azure
2 22 (11.89%) SaaS
3 21 (11.35%) PaaS
4 16 (8.65%) Apigee
4 16 (8.65%) Boomi
4 16 (8.65%) GitHub
5 14 (7.57%) Amazon AWS
6 7 (3.78%) npm
7 5 (2.70%) Azure Data Factory
7 5 (2.70%) IaaS
8 4 (2.16%) Azure Active Directory
8 4 (2.16%) Azure Machine Learning
8 4 (2.16%) OpenShift
9 3 (1.62%) NuGet
9 3 (1.62%) Serverless
10 2 (1.08%) Azure Functions
10 2 (1.08%) Data Lake Analytics
10 2 (1.08%) Google Cloud Platform
10 2 (1.08%) Sauce Labs
11 1 (0.54%) AWS CloudFormation
Communications & Networking
1 7 (3.78%) Firewall
2 6 (3.24%) Network Security
2 6 (3.24%) VPN
3 4 (2.16%) HTTP
3 4 (2.16%) VLAN
4 3 (1.62%) HTTPS
5 2 (1.08%) BGP
5 2 (1.08%) Cisco ASA
5 2 (1.08%) Cisco Nexus
5 2 (1.08%) Cisco Wireless
5 2 (1.08%) DSL
5 2 (1.08%) F5 BIG-IP GTM
5 2 (1.08%) F5 BIG-IP LTM
5 2 (1.08%) Multicast
5 2 (1.08%) OSPF
5 2 (1.08%) SSH
5 2 (1.08%) TCP/IP
5 2 (1.08%) VXLAN
5 2 (1.08%) Wireless
5 2 (1.08%) Wireshark
Database & Business Intelligence
1 57 (30.81%) SQL Server
2 33 (17.84%) SQL Server Integration Services
3 30 (16.22%) Data Warehouse
4 19 (10.27%) Relational Database
4 19 (10.27%) SQL Server Reporting Services
5 17 (9.19%) Data Lake
6 14 (7.57%) MySQL
7 9 (4.86%) Azure SQL Database
8 8 (4.32%) Power BI
8 8 (4.32%) SQL Server Analysis Services
9 7 (3.78%) Oracle Reports
9 7 (3.78%) PostgreSQL
10 6 (3.24%) NoSQL
11 5 (2.70%) Microsoft Analysis Services
11 5 (2.70%) RDBMS
12 4 (2.16%) Cosmos DB
12 4 (2.16%) Data Mining
12 4 (2.16%) MongoDB
12 4 (2.16%) Redis
13 3 (1.62%) PowerPivot
Development Applications
1 41 (22.16%) Git (software)
2 27 (14.59%) Visual Studio
3 23 (12.43%) Selenium
4 12 (6.49%) Cucumber
4 12 (6.49%) Gradle
5 11 (5.95%) Team Foundation Server
5 11 (5.95%) TeamCity
6 10 (5.41%) Maven
6 10 (5.41%) Octopus Deploy
6 10 (5.41%) WebDriver
7 9 (4.86%) Ant
7 9 (4.86%) Jenkins
7 9 (4.86%) JIRA
7 9 (4.86%) JUnit
8 7 (3.78%) Mockito
8 7 (3.78%) NUnit
9 6 (3.24%) Subversion
10 5 (2.70%) SpecFlow
11 4 (2.16%) Bitbucket
11 4 (2.16%) SoapUI
General
1 51 (27.57%) Finance
2 22 (11.89%) Banking
3 12 (6.49%) Advertising
4 8 (4.32%) Marketing
5 7 (3.78%) Automotive
6 5 (2.70%) Back Office
6 5 (2.70%) Games
7 4 (2.16%) Law
7 4 (2.16%) Retail
8 3 (1.62%) Corporate Banking
8 3 (1.62%) Publishing
9 2 (1.08%) Front Office
10 1 (0.54%) Investment Banking
10 1 (0.54%) Pharmaceutical
Job Titles
1 95 (51.35%) Developer
2 53 (28.65%) Architect
3 33 (17.84%) Solutions Architect
4 25 (13.51%) Senior Developer
5 23 (12.43%) Lead Developer
6 22 (11.89%) .NET Architect
6 22 (11.89%) .NET Solutions Architect
7 16 (8.65%) Java Developer
8 15 (8.11%) Integration Architect
8 15 (8.11%) Integration Developer
9 13 (7.03%) .NET Developer
10 12 (6.49%) PHP Developer
11 11 (5.95%) Senior Java Developer
12 10 (5.41%) Enterprise Architect
13 8 (4.32%) C# Developer
13 8 (4.32%) Enterprise Integration Architect
14 7 (3.78%) PHP Laravel Developer
15 6 (3.24%) iOS Developer
15 6 (3.24%) Lead .NET Developer
15 6 (3.24%) React Developer
Libraries, Frameworks & Software Standards
1 89 (48.11%) REST
2 86 (46.49%) XML
3 74 (40.00%) HTML
4 72 (38.92%) .NET
5 63 (34.05%) CSS
6 59 (31.89%) Web Services
7 44 (23.78%) SOAP
8 37 (20.00%) jQuery
9 31 (16.76%) AngularJS
10 30 (16.22%) RESTful
11 29 (15.68%) Spring
12 27 (14.59%) Twitter Bootstrap
13 26 (14.05%) HTML5
14 23 (12.43%) .NET Framework
14 23 (12.43%) CSS3
15 18 (9.73%) Entity Framework
16 16 (8.65%) ASP.NET
17 15 (8.11%) ASP.NET Web API
18 12 (6.49%) Ajax
18 12 (6.49%) React
Miscellaneous
1 15 (8.11%) Greenfield Project
2 11 (5.95%) User Experience
3 6 (3.24%) Data Structures
4 5 (2.70%) Mobile App
5 3 (1.62%) Data Centre
5 3 (1.62%) Fintech
5 3 (1.62%) Fixed Income
5 3 (1.62%) Over-the-Top Content
5 3 (1.62%) Self-Motivation
5 3 (1.62%) Video on Demand
6 2 (1.08%) Client/Server
6 2 (1.08%) Foreign Exchange (FX)
6 2 (1.08%) Reference Data
7 1 (0.54%) Algorithms
7 1 (0.54%) Analytical Skills
7 1 (0.54%) Credit Derivative
7 1 (0.54%) Derivative
7 1 (0.54%) Enterprise Storage
7 1 (0.54%) NHS
7 1 (0.54%) Social Media
Operating Systems
1 27 (14.59%) Linux
2 21 (11.35%) Windows
3 8 (4.32%) Apple iOS
4 7 (3.78%) Android
5 4 (2.16%) Windows Server
6 3 (1.62%) Unix
7 1 (0.54%) Red Hat Enterprise Linux
7 1 (0.54%) Windows 10
Processes & Methodologies
1 95 (51.35%) Agile Software Development
2 52 (28.11%) Scrum
3 44 (23.78%) SDLC
4 40 (21.62%) DevOps
5 39 (21.08%) Analytics
6 38 (20.54%) Business Intelligence
7 37 (20.00%) TDD
8 30 (16.22%) MVC
9 29 (15.68%) Microservices
10 27 (14.59%) Continuous Integration
10 27 (14.59%) Web Development
11 26 (14.05%) E-Commerce
11 26 (14.05%) Machine Learning
12 25 (13.51%) API Design
12 25 (13.51%) Artificial Intelligence
13 23 (12.43%) BDD
14 22 (11.89%) Digital Transformation Strategy
14 22 (11.89%) Waterfall
15 19 (10.27%) Unit Testing
16 18 (9.73%) OO
Programming Languages
1 100 (54.05%) JavaScript
2 79 (42.70%) C#
3 75 (40.54%) SQL
4 43 (23.24%) Java
5 18 (9.73%) Python
6 14 (7.57%) PHP
7 10 (5.41%) PL/SQL
8 9 (4.86%) PowerShell
9 7 (3.78%) Apple Swift
9 7 (3.78%) PHP 7
10 6 (3.24%) T-SQL
11 5 (2.70%) Objective-C
11 5 (2.70%) Ruby
12 4 (2.16%) Kotlin
12 4 (2.16%) TypeScript
13 3 (1.62%) Data Analysis Expressions (DAX)
13 3 (1.62%) ES6
13 3 (1.62%) Perl
14 2 (1.08%) C++
14 2 (1.08%) VB.NET
Qualifications
1 7 (3.78%) Degree
2 3 (1.62%) Computer Science Degree
2 3 (1.62%) Numerate Degree
3 2 (1.08%) CCIE
3 2 (1.08%) Cisco Certification
3 2 (1.08%) MCSA
3 2 (1.08%) MCSE
3 2 (1.08%) Microsoft Certification
4 1 (0.54%) AWS Certification
Quality Assurance & Compliance
1 11 (5.95%) QA
2 4 (2.16%) MiFID
2 4 (2.16%) PMO
3 3 (1.62%) Data Quality
4 1 (0.54%) ISO 20022
System Software
1 11 (5.95%) Docker
2 4 (2.16%) Active Directory
3 1 (0.54%) Hyper-V
3 1 (0.54%) VMware Infrastructure
3 1 (0.54%) XenServer
Systems Management
1 3 (1.62%) Ansible
2 2 (1.08%) Docker Swarm
2 2 (1.08%) Kubernetes
2 2 (1.08%) Opscode Chef
3 1 (0.54%) HP ALM
3 1 (0.54%) Kibana
3 1 (0.54%) Puppet
3 1 (0.54%) SCCM
3 1 (0.54%) Suricata
3 1 (0.54%) Terraform
Vendors
1 39 (21.08%) Microsoft
2 38 (20.54%) Oracle
3 19 (10.27%) Red Hat
4 17 (9.19%) TIBCO
5 16 (8.65%) Axway
6 9 (4.86%) Splunk
7 7 (3.78%) Remedy
8 5 (2.70%) Adobe
9 4 (2.16%) Atlassian
10 3 (1.62%) RedGate
11 2 (1.08%) Apple
11 2 (1.08%) Cisco
11 2 (1.08%) F5
11 2 (1.08%) HP
11 2 (1.08%) Informatica
11 2 (1.08%) Lotus
11 2 (1.08%) Riverbed
11 2 (1.08%) Salesforce.com
11 2 (1.08%) Sitecore
11 2 (1.08%) SolarWinds