Period
to 28 September 2020

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 28 September 2020 with a comparison to the same period in the previous 2 years.

JSON
Central London > City of London
6 months to
28 Sep 2020
Same period 2019 Same period 2018
Rank 115 187 151
Rank change year-on-year +72 -36 +26
Permanent jobs citing JSON 83 156 225
As % of all permanent jobs advertised in the City of London 2.23% 1.55% 2.04%
As % of the Libraries, Frameworks & Software Standards category 5.14% 4.00% 4.79%
Number of salaries quoted 63 121 208
Median annual salary £90,000 £72,500 £70,000
Median salary % change year-on-year +24.14% +3.57% +21.74%
10th Percentile £51,500 £44,000 £39,475
90th Percentile £102,500 £92,500 £89,125
Central London median annual salary £90,000 £70,000 £70,000
% change year-on-year +28.57% - +27.27%

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 1,615 3,899 4,699
As % of all permanent IT jobs advertised in the City of London 43.41% 38.79% 42.51%
Number of salaries quoted 1,411 3,502 4,300
Median annual salary £70,000 £70,000 £65,000
Median salary % change year-on-year - +7.69% +4.00%
10th Percentile £47,500 £44,410 £42,000
90th Percentile £102,500 £95,000 £93,750
Central London median annual salary £70,000 £70,000 £65,000
% change year-on-year - +7.69% +8.33%

JSON
Job Vacancy Trend in the City of London

Job postings citing JSON as a proportion 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

3-month moving average salary quoted in 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

Salary distribution for jobs citing JSON in the City of London over the 6 months to 28 September 2020.

Salary histogram for JSON in the City of London

For the 6 months to 28 September 2020, 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 53 (63.86%) REST
2 43 (51.81%) Finance
3 35 (42.17%) SQL
4 34 (40.96%) Azure
5 33 (39.76%) XML
6 29 (34.94%) Banking
7 28 (33.73%) SQL Server
8 27 (32.53%) Asset Management
9 26 (31.33%) SOAP
9 26 (31.33%) Fintech
10 25 (30.12%) OOP
11 23 (27.71%) Microsoft
11 23 (27.71%) SQL Server Integration Services
11 23 (27.71%) Redux
12 22 (26.51%) webpack
12 22 (26.51%) Sass
13 21 (25.30%) Problem-Solving
14 20 (24.10%) Power Platform
14 20 (24.10%) Agile Software Development
14 20 (24.10%) ETL
15 19 (22.89%) Business Intelligence
15 19 (22.89%) Data Modelling
15 19 (22.89%) Power BI
16 17 (20.48%) JavaScript
16 17 (20.48%) SQL Server Reporting Services
16 17 (20.48%) Analytics
16 17 (20.48%) Git (software)
17 16 (19.28%) SQL Server Analysis Services
17 16 (19.28%) Data Analytics
17 16 (19.28%) Performance Tuning

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 5 (6.02%) Elasticsearch
2 2 (2.41%) Apache Spark
2 2 (2.41%) EPiServer
3 1 (1.20%) Appian
3 1 (1.20%) Confluence
3 1 (1.20%) SharePoint
Applications
1 16 (19.28%) Microsoft Excel
Business Applications
1 1 (1.20%) Dynamics CRM
Cloud Services
1 34 (40.96%) Azure
2 20 (24.10%) Power Platform
3 11 (13.25%) AWS
4 4 (4.82%) Azure Data Factory
5 3 (3.61%) Amazon S3
5 3 (3.61%) Cloud Computing
5 3 (3.61%) GCP
5 3 (3.61%) Logic Apps
5 3 (3.61%) Veeva
5 3 (3.61%) Virtual Private Cloud
6 2 (2.41%) Amazon ElastiCache
6 2 (2.41%) Amazon EMR
6 2 (2.41%) Amazon Kinesis
6 2 (2.41%) Azure Active Directory
6 2 (2.41%) Dynamics 365
6 2 (2.41%) npm
6 2 (2.41%) Office 365
6 2 (2.41%) SaaS
7 1 (1.20%) Salesforce Sales Cloud
7 1 (1.20%) Serverless
Communications & Networking
1 6 (7.23%) TCP/IP
2 5 (6.02%) BGP
2 5 (6.02%) Cisco ASA
2 5 (6.02%) Cisco Nexus
2 5 (6.02%) Cisco Wireless
2 5 (6.02%) F5 BIG-IP GTM
2 5 (6.02%) F5 BIG-IP LTM
2 5 (6.02%) Firewall
2 5 (6.02%) LAN
2 5 (6.02%) Multicast
2 5 (6.02%) Network Security
2 5 (6.02%) OSPF
2 5 (6.02%) VXLAN
2 5 (6.02%) WAN
2 5 (6.02%) Wi-Fi
2 5 (6.02%) Wireless
2 5 (6.02%) Wireshark
3 3 (3.61%) HTTP
4 2 (2.41%) Internet
5 1 (1.20%) SAN
Database & Business Intelligence
1 28 (33.73%) SQL Server
2 23 (27.71%) SQL Server Integration Services
3 19 (22.89%) Power BI
4 17 (20.48%) SQL Server Reporting Services
5 16 (19.28%) Data Warehouse
5 16 (19.28%) OLAP
5 16 (19.28%) OLAP Cube
5 16 (19.28%) OLTP
5 16 (19.28%) SQL Server Analysis Services
6 14 (16.87%) Azure SQL Data Warehouse
7 5 (6.02%) Redis
8 4 (4.82%) Hadoop
8 4 (4.82%) HBase
9 3 (3.61%) Apache Hive
9 3 (3.61%) Big Data
9 3 (3.61%) Cosmos DB
9 3 (3.61%) InterSystems Cache
9 3 (3.61%) SQL Server 2012
10 2 (2.41%) Data Lake
10 2 (2.41%) Enterprise Data Warehouse
Development Applications
1 22 (26.51%) webpack
2 17 (20.48%) Git (software)
3 7 (8.43%) Jenkins
4 6 (7.23%) Maven
5 5 (6.02%) Gradle
5 5 (6.02%) Sonatype Nexus
5 5 (6.02%) TeamCity
6 3 (3.61%) Bitbucket
7 2 (2.41%) Team Foundation Server
7 2 (2.41%) Visual Studio
8 1 (1.20%) Atlassian Bamboo
8 1 (1.20%) Cypress.io
8 1 (1.20%) JIRA
8 1 (1.20%) JMeter
8 1 (1.20%) JUnit
8 1 (1.20%) NUnit
8 1 (1.20%) Selenium
8 1 (1.20%) xUnit.net
General
1 43 (51.81%) Finance
2 29 (34.94%) Banking
3 5 (6.02%) Investment Banking
4 2 (2.41%) Front Office
5 1 (1.20%) Law
5 1 (1.20%) Legal
5 1 (1.20%) Private Banking
5 1 (1.20%) Publishing
Job Titles
1 41 (49.40%) Developer
2 18 (21.69%) Azure Developer
3 16 (19.28%) Business Intelligence Developer
3 16 (19.28%) Excel Developer
3 16 (19.28%) Microsoft BI Developer
3 16 (19.28%) OLAP Developer
3 16 (19.28%) SQL BI Developer
3 16 (19.28%) SQL Developer
3 16 (19.28%) SQL Server BI Developer
3 16 (19.28%) SQL Server Developer
3 16 (19.28%) SSAS Developer
3 16 (19.28%) SSIS Developer
4 14 (16.87%) Data Warehouse Developer
4 14 (16.87%) ETL Developer
4 14 (16.87%) SQL Server Data Warehouse Developer
5 10 (12.05%) C# Developer
6 8 (9.64%) Java Developer
7 6 (7.23%) Senior Developer
8 5 (6.02%) .NET Developer
8 5 (6.02%) IT Manager
Libraries, Frameworks & Software Standards
1 53 (63.86%) REST
2 33 (39.76%) XML
3 26 (31.33%) SOAP
4 23 (27.71%) Redux
5 22 (26.51%) Sass
6 13 (15.66%) AngularJS
7 12 (14.46%) .NET
8 11 (13.25%) Web Services
9 10 (12.05%) Spring
10 8 (9.64%) YAML
11 7 (8.43%) .NET Framework
11 7 (8.43%) HTML
11 7 (8.43%) Regular Expression
11 7 (8.43%) Spring Boot
12 6 (7.23%) .NET Core
13 5 (6.02%) ASP.NET
13 5 (6.02%) ASP.NET Web API
13 5 (6.02%) CSS
13 5 (6.02%) FpML
13 5 (6.02%) Node.js
Miscellaneous
1 5 (6.02%) Data Centre
1 5 (6.02%) Derivative
1 5 (6.02%) Interest Rate Derivative
2 3 (3.61%) Cloud Native
2 3 (3.61%) OTC Derivatives
3 2 (2.41%) Analytical Skills
3 2 (2.41%) Data Structures
4 1 (1.20%) Algorithms
4 1 (1.20%) Social Media
Operating Systems
1 5 (6.02%) Linux
2 1 (1.20%) Windows
2 1 (1.20%) Windows 10
2 1 (1.20%) Windows Server
Processes & Methodologies
1 27 (32.53%) Asset Management
2 26 (31.33%) Fintech
3 25 (30.12%) OOP
4 21 (25.30%) Problem-Solving
5 20 (24.10%) Agile Software Development
5 20 (24.10%) ETL
6 19 (22.89%) Business Intelligence
6 19 (22.89%) Data Modelling
7 17 (20.48%) Analytics
8 16 (19.28%) Dashboard Development
8 16 (19.28%) Data Analytics
8 16 (19.28%) Performance Tuning
8 16 (19.28%) TDD
9 14 (16.87%) DevOps
10 11 (13.25%) Microservices
11 10 (12.05%) OO
12 9 (10.84%) Continuous Integration
12 9 (10.84%) Low Latency
12 9 (10.84%) Test Automation
13 8 (9.64%) BDD
Programming Languages
1 35 (42.17%) SQL
2 17 (20.48%) JavaScript
3 16 (19.28%) Python
4 15 (18.07%) C#
5 11 (13.25%) Java
6 7 (8.43%) Java 8
6 7 (8.43%) PowerShell
7 5 (6.02%) PL/SQL
8 4 (4.82%) SOQL
8 4 (4.82%) T-SQL
9 3 (3.61%) PHP
9 3 (3.61%) XPath
10 2 (2.41%) R
10 2 (2.41%) TypeScript
11 1 (1.20%) Apex Code
11 1 (1.20%) C
Qualifications
1 2 (2.41%) Degree
Quality Assurance & Compliance
1 2 (2.41%) QA
System Software
1 13 (15.66%) Docker
2 1 (1.20%) Active Directory
2 1 (1.20%) vSphere
Systems Management
1 8 (9.64%) Ansible
2 4 (4.82%) Kubernetes
3 3 (3.61%) Consul
3 3 (3.61%) Terraform
Vendors
1 23 (27.71%) Microsoft
2 5 (6.02%) Arista
2 5 (6.02%) CheckPoint
2 5 (6.02%) Cisco
2 5 (6.02%) F5
2 5 (6.02%) Fortinet
2 5 (6.02%) Oracle
2 5 (6.02%) Palo Alto
2 5 (6.02%) Riverbed
2 5 (6.02%) SolarWinds
2 5 (6.02%) Splunk
3 4 (4.82%) Salesforce.com
4 3 (3.61%) Tableau
5 2 (2.41%) Databricks
6 1 (1.20%) Alteryx
6 1 (1.20%) Murex
6 1 (1.20%) OutSystems
6 1 (1.20%) VMware