Period
to 19 January 2022

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 19 January 2022 with a comparison to the same period in the previous 2 years.

JSON
Central London > City of London
6 months to
19 Jan 2022
Same period 2021 Same period 2020
Rank 125 133 172
Rank change year-on-year +8 +39 -9
Permanent jobs citing JSON 133 86 150
As % of all permanent jobs advertised in the City of London 2.14% 2.01% 1.65%
As % of the Libraries, Frameworks & Software Standards category 5.87% 4.69% 4.29%
Number of salaries quoted 121 64 131
10th Percentile £45,000 £52,750 £44,000
25th Percentile £51,250 £57,500 £46,250
Median annual salary (50th Percentile) £62,500 £81,250 £65,000
Median % change year-on-year -23.08% +25.00% -10.34%
75th Percentile £85,000 £95,000 £78,750
90th Percentile £100,000 - £85,000
Central London median annual salary £65,000 £75,000 £70,000
% change year-on-year -13.33% +7.14% -3.45%

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 2,265 1,833 3,493
As % of all permanent IT jobs advertised in the City of London 36.46% 42.91% 38.54%
Number of salaries quoted 2,017 1,646 3,145
10th Percentile £48,750 £47,500 £44,600
25th Percentile £60,000 £57,500 £55,000
Median annual salary (50th Percentile) £77,500 £70,000 £70,000
Median % change year-on-year +10.71% - +3.70%
75th Percentile £96,250 £87,500 £85,000
90th Percentile £110,000 £105,000 £97,500
Central London median annual salary £77,500 £70,000 £70,000
% change year-on-year +10.71% - +7.69%

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 19 January 2022.

Salary histogram for JSON in the City of London

JSON
Job Locations in the City of London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JSON within the City of London region over the 6 months to 19 January 2022. 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
Jobs
London Bridge - 1 £50,000 -
JSON
Central London

For the 6 months to 19 January 2022, 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 90 (67.67%) SQL
2 61 (45.86%) XML
3 54 (40.60%) Finance
4 46 (34.59%) Azure
5 42 (31.58%) REST
6 38 (28.57%) Java
7 37 (27.82%) Agile Software Development
8 32 (24.06%) DevOps
9 27 (20.30%) .NET
10 26 (19.55%) JavaScript
10 26 (19.55%) Web Services
10 26 (19.55%) TDD
10 26 (19.55%) QA
11 25 (18.80%) Social Skills
12 23 (17.29%) Power Platform
12 23 (17.29%) Power BI
12 23 (17.29%) C#
12 23 (17.29%) Microsoft
13 22 (16.54%) Terraform
13 22 (16.54%) BDD
14 21 (15.79%) CI/CD
15 20 (15.04%) Active Directory
15 20 (15.04%) JUnit
15 20 (15.04%) AWS
16 19 (14.29%) Git (software)
16 19 (14.29%) Python
17 18 (13.53%) Scrum
17 18 (13.53%) Cucumber
17 18 (13.53%) Full Stack Development
17 18 (13.53%) Cybersecurity

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 13 (9.77%) Jetty
2 4 (3.01%) Tomcat
3 3 (2.26%) Appian
3 3 (2.26%) Confluence
4 2 (1.50%) Cloud Foundry
4 2 (1.50%) nginx
5 1 (0.75%) Elasticsearch
5 1 (0.75%) MQSeries
Applications
1 2 (1.50%) Microsoft Excel
1 2 (1.50%) Microsoft PowerPoint
2 1 (0.75%) Microsoft Office
Cloud Services
1 46 (34.59%) Azure
2 23 (17.29%) Power Platform
3 20 (15.04%) AWS
4 17 (12.78%) SaaS
5 14 (10.53%) Serverless
6 13 (9.77%) AWS CloudFormation
7 12 (9.02%) Amazon EC2
7 12 (9.02%) Amazon ECS
7 12 (9.02%) IaaS
8 11 (8.27%) Amazon CloudWatch
8 11 (8.27%) AWS Lambda
8 11 (8.27%) Virtual Private Cloud
9 9 (6.77%) Azure Active Directory
10 8 (6.02%) Azure Logic Apps
10 8 (6.02%) Azure Monitor
11 2 (1.50%) Azure Service Fabric
11 2 (1.50%) BlazeMeter
11 2 (1.50%) BrowserStack
11 2 (1.50%) GCP
11 2 (1.50%) Microsoft 365
Communications & Networking
1 15 (11.28%) HTTP
2 5 (3.76%) Firewall
3 4 (3.01%) Cisco Firepower
3 4 (3.01%) Cisco ISE
3 4 (3.01%) Ethernet
3 4 (3.01%) Internet
3 4 (3.01%) LAN
3 4 (3.01%) Network Security
3 4 (3.01%) SD-WAN
3 4 (3.01%) WAN
4 2 (1.50%) VoIP
5 1 (0.75%) FTP
5 1 (0.75%) SAN
Database & Business Intelligence
1 23 (17.29%) Power BI
2 17 (12.78%) SQL Server
3 14 (10.53%) Tableau
4 12 (9.02%) Looker
4 12 (9.02%) Qlik Sense
5 11 (8.27%) NoSQL
6 7 (5.26%) SQL Server Integration Services
7 6 (4.51%) SQL Server Reporting Services
8 5 (3.76%) Hadoop
8 5 (3.76%) MongoDB
9 4 (3.01%) Relational Database
10 3 (2.26%) Data Warehouse
10 3 (2.26%) MySQL
10 3 (2.26%) PostgreSQL
11 2 (1.50%) Big Data
11 2 (1.50%) Blockchain
11 2 (1.50%) Parquet
12 1 (0.75%) Data Lake
12 1 (0.75%) Data Vault
12 1 (0.75%) Geospatial Data
Development Applications
1 20 (15.04%) JUnit
2 19 (14.29%) Git (software)
3 18 (13.53%) Cucumber
4 14 (10.53%) Bitbucket
4 14 (10.53%) Gradle
5 13 (9.77%) Ant
5 13 (9.77%) Apache Ivy
5 13 (9.77%) Concordion
5 13 (9.77%) Maven
5 13 (9.77%) Mockito
5 13 (9.77%) Selenium
6 11 (8.27%) Jenkins
7 10 (7.52%) JIRA
7 10 (7.52%) WebDriver
8 9 (6.77%) Atlassian Bamboo
9 7 (5.26%) JMeter
10 3 (2.26%) Jasmine
10 3 (2.26%) Mocha
10 3 (2.26%) Octopus Deploy
11 2 (1.50%) webpack
General
1 54 (40.60%) Finance
2 25 (18.80%) Social Skills
3 18 (13.53%) Analytical Skills
4 17 (12.78%) Presentation Skills
5 11 (8.27%) Advertising
6 8 (6.02%) Pharmaceutical
7 7 (5.26%) Marketing
8 6 (4.51%) Banking
8 6 (4.51%) Documentation Skills
9 3 (2.26%) Automotive
9 3 (2.26%) Law
9 3 (2.26%) Legal
9 3 (2.26%) Retail Banking
10 2 (1.50%) Electronics
10 2 (1.50%) Manufacturing
10 2 (1.50%) Public Sector
10 2 (1.50%) Retail
10 2 (1.50%) Telecoms
11 1 (0.75%) Billing
11 1 (0.75%) Organisational Skills
Job Titles
1 78 (58.65%) Developer
2 22 (16.54%) Senior Developer
3 20 (15.04%) Java Developer
4 14 (10.53%) Analyst
5 12 (9.02%) Business Intelligence Developer
6 11 (8.27%) Applications Engineer
6 11 (8.27%) Deployment Engineer
6 11 (8.27%) Full Stack Developer
6 11 (8.27%) Infrastructure Deployment Engineer
6 11 (8.27%) Infrastructure Engineer
6 11 (8.27%) Junior
6 11 (8.27%) Senior Java Developer
7 10 (7.52%) Backend Developer
8 9 (6.77%) .NET Developer
8 9 (6.77%) Architect
8 9 (6.77%) Azure Developer
9 8 (6.02%) Senior Backend Developer
10 7 (5.26%) Citrix Engineer
10 7 (5.26%) Citrix Infrastructure Engineer
11 6 (4.51%) Software Engineer
Libraries, Frameworks & Software Standards
1 61 (45.86%) XML
2 42 (31.58%) REST
3 27 (20.30%) .NET
4 26 (19.55%) Web Services
5 16 (12.03%) CSS
5 16 (12.03%) HTML
6 14 (10.53%) React
7 13 (9.77%) JAX-RS
7 13 (9.77%) JDBC
7 13 (9.77%) JMS
7 13 (9.77%) JPA
7 13 (9.77%) Swagger
8 10 (7.52%) Node.js
8 10 (7.52%) RESTful
9 9 (6.77%) SOAP
10 8 (6.02%) Apache Thrift
10 8 (6.02%) FIX Protocol
11 7 (5.26%) CSS3
11 7 (5.26%) HTML5
11 7 (5.26%) Kafka
Miscellaneous
1 17 (12.78%) Greenfield Project
2 13 (9.77%) Enterprise Software
3 11 (8.27%) Enterprise Cloud
3 11 (8.27%) Mobile App
4 8 (6.02%) Foreign Exchange (FX)
5 6 (4.51%) Data Structures
5 6 (4.51%) Public Cloud
6 5 (3.76%) Reinsurance
6 5 (3.76%) User Experience
7 4 (3.01%) Data Centre
8 3 (2.26%) Hedge funds
9 2 (1.50%) Algorithms
9 2 (1.50%) Derivative
9 2 (1.50%) Market Risk
9 2 (1.50%) Media Streaming
9 2 (1.50%) Video\Live Streaming
10 1 (0.75%) Linux Command Line
10 1 (0.75%) Marketing Technology
10 1 (0.75%) Self-Motivation
10 1 (0.75%) Virtual Team
Operating Systems
1 15 (11.28%) Linux
2 14 (10.53%) Windows
3 12 (9.02%) Android
3 12 (9.02%) Windows Server
4 11 (8.27%) Apple iOS
4 11 (8.27%) Unix
Processes & Methodologies
1 37 (27.82%) Agile Software Development
2 32 (24.06%) DevOps
3 26 (19.55%) TDD
4 22 (16.54%) BDD
5 21 (15.79%) CI/CD
6 18 (13.53%) Cybersecurity
6 18 (13.53%) Full Stack Development
6 18 (13.53%) Scrum
7 17 (12.78%) Business Intelligence
7 17 (12.78%) Mentoring
8 16 (12.03%) Fintech
8 16 (12.03%) Test Automation
9 14 (10.53%) Data Modelling
9 14 (10.53%) Decision-Making
9 14 (10.53%) Infrastructure as Code
10 13 (9.77%) API Design
10 13 (9.77%) Microservices
11 12 (9.02%) Data Visualisation
11 12 (9.02%) Infrastructure Automation
11 12 (9.02%) Infrastructure Engineering
Programming Languages
1 90 (67.67%) SQL
2 38 (28.57%) Java
3 26 (19.55%) JavaScript
4 23 (17.29%) C#
5 19 (14.29%) Python
6 15 (11.28%) PowerShell
7 10 (7.52%) T-SQL
8 8 (6.02%) Bash
9 6 (4.51%) Perl
10 4 (3.01%) ES6
11 3 (2.26%) TypeScript
12 2 (1.50%) Java 11
12 2 (1.50%) Java 8
12 2 (1.50%) Kotlin
12 2 (1.50%) PHP
12 2 (1.50%) VB
13 1 (0.75%) Apple Swift
13 1 (0.75%) Objective-C
13 1 (0.75%) Ruby
13 1 (0.75%) VB6
Qualifications
1 4 (3.01%) SC Cleared
1 4 (3.01%) Security Cleared
2 3 (2.26%) Degree
3 2 (1.50%) Master's Degree
4 1 (0.75%) AWS Certification
4 1 (0.75%) Computer Science Degree
4 1 (0.75%) ISEB
Quality Assurance & Compliance
1 26 (19.55%) QA
2 2 (1.50%) Data Quality
2 2 (1.50%) GDPR
System Software
1 20 (15.04%) Active Directory
2 11 (8.27%) Hyper-V
2 11 (8.27%) Microsoft App-V
2 11 (8.27%) XenApp
3 7 (5.26%) Docker
4 6 (4.51%) VMware Infrastructure
5 4 (3.01%) VMware NSX
Systems Management
1 22 (16.54%) Terraform
2 11 (8.27%) EdgeSight
2 11 (8.27%) Nagios
2 11 (8.27%) SCCM
2 11 (8.27%) SCOM
2 11 (8.27%) SCOrch
2 11 (8.27%) SCVMM
3 10 (7.52%) Kubernetes
4 5 (3.76%) Ansible
5 4 (3.01%) FortiGate
6 1 (0.75%) Automic
6 1 (0.75%) Istio
6 1 (0.75%) Opscode Chef
6 1 (0.75%) Puppet
6 1 (0.75%) Single Sign-On
Vendors
1 23 (17.29%) Microsoft
2 11 (8.27%) Citrix
2 11 (8.27%) HP
3 6 (4.51%) VMware
4 4 (3.01%) CA
4 4 (3.01%) Cisco
4 4 (3.01%) Fortinet
4 4 (3.01%) SolarWinds
5 3 (2.26%) OutSystems
6 2 (1.50%) Jitterbit
6 2 (1.50%) MuleSoft
6 2 (1.50%) Perfecto Mobile
6 2 (1.50%) SAP
6 2 (1.50%) SnapLogic
6 2 (1.50%) Zend
7 1 (0.75%) Cadence
7 1 (0.75%) Google
7 1 (0.75%) Solace
7 1 (0.75%) Telerik
7 1 (0.75%) TIBCO