Period
to

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 25 June 2022 with a comparison to the same period in the previous 2 years.

JSON
Central London > City of London
6 months to
25 Jun 2022
Same period 2021 Same period 2020
Rank 166 123 147
Rank change year-on-year -43 +24 +48
Permanent jobs citing JSON 131 125 99
As % of all permanent jobs advertised in the City of London 1.66% 2.34% 1.62%
As % of the Libraries, Frameworks & Software Standards category 5.33% 5.78% 4.20%
Number of salaries quoted 119 123 85
10th Percentile £52,500 £43,750 -
25th Percentile £57,500 £53,750 £46,250
Median annual salary (50th Percentile) £90,000 £65,000 £72,500
Median % change year-on-year +38.46% -10.34% -3.33%
75th Percentile £100,000 £95,000 £95,000
90th Percentile £103,750 £121,250 £112,500
Central London median annual salary £77,500 £65,000 £72,500
% change year-on-year +19.23% -10.34% +3.57%

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 2,457 2,162 2,359
As % of all permanent IT jobs advertised in the City of London 31.12% 40.55% 38.67%
Number of salaries quoted 2,006 1,996 2,096
10th Percentile £48,750 £46,250 £46,250
25th Percentile £60,000 £57,500 £55,000
Median annual salary (50th Percentile) £77,500 £75,000 £70,000
Median % change year-on-year +3.33% +7.14% -
75th Percentile £100,000 £91,250 £85,313
90th Percentile £111,875 £107,500 £97,500
Central London median annual salary £77,500 £75,000 £70,000
% change year-on-year +3.33% +7.14% +3.70%

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 25 June 2022.

Salary histogram for JSON in the City of London

For the 6 months to 25 June 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.

1 100 (76.34%) SQL
2 68 (51.91%) Java
3 67 (51.15%) REST
4 66 (50.38%) XML
5 60 (45.80%) Finance
6 51 (38.93%) Git (software)
7 47 (35.88%) Agile
8 43 (32.82%) TDD
9 41 (31.30%) Azure
10 40 (30.53%) JUnit
10 40 (30.53%) Decision-Making
10 40 (30.53%) CI/CD
11 37 (28.24%) JavaScript
12 34 (25.95%) Swagger
13 33 (25.19%) Web Services
14 29 (22.14%) BDD
14 29 (22.14%) JPA
14 29 (22.14%) API Design
15 28 (21.37%) Docker
15 28 (21.37%) Maven
15 28 (21.37%) JDBC
15 28 (21.37%) JMS
16 27 (20.61%) Ant
16 27 (20.61%) QA
16 27 (20.61%) Jetty
16 27 (20.61%) Mockito
16 27 (20.61%) Cucumber
16 27 (20.61%) Concordion
16 27 (20.61%) Apache Ivy
16 27 (20.61%) Bitbucket

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 27 (20.61%) Jetty
2 17 (12.98%) Cloud Foundry
3 8 (6.11%) IIS
3 8 (6.11%) Tomcat
4 6 (4.58%) JBoss
5 3 (2.29%) CMS
5 3 (2.29%) Umbraco
6 1 (0.76%) Alfresco
6 1 (0.76%) Apache Solr
6 1 (0.76%) Appian
6 1 (0.76%) Elasticsearch
6 1 (0.76%) MQSeries
6 1 (0.76%) SharePoint
Applications
1 10 (7.63%) Microsoft Excel
2 4 (3.05%) Microsoft Office
2 4 (3.05%) Microsoft PowerPoint
Business Applications
1 1 (0.76%) Shopify
Cloud Services
1 41 (31.30%) Azure
2 22 (16.79%) AWS
3 18 (13.74%) Power Platform
3 18 (13.74%) Serverless
4 17 (12.98%) Amazon EC2
5 12 (9.16%) AWS Fargate
6 9 (6.87%) SaaS
7 5 (3.82%) PaaS
8 4 (3.05%) AWS CloudFormation
8 4 (3.05%) GCP
9 3 (2.29%) IaaS
10 2 (1.53%) Azure Active Directory
10 2 (1.53%) GitHub
11 1 (0.76%) Azure Functions
11 1 (0.76%) Azure Pipelines
11 1 (0.76%) Slack
11 1 (0.76%) Tricentis Tosca
Communications & Networking
1 9 (6.87%) HTTP
2 4 (3.05%) Cisco Firepower
2 4 (3.05%) Cisco ISE
2 4 (3.05%) Ethernet
2 4 (3.05%) Firewall
2 4 (3.05%) LAN
2 4 (3.05%) Network Security
2 4 (3.05%) SD-WAN
2 4 (3.05%) WAN
3 2 (1.53%) Internet
3 2 (1.53%) VoIP
4 1 (0.76%) FTP
Database & Business Intelligence
1 23 (17.56%) SQL Server
1 23 (17.56%) SQL Server Integration Services
2 19 (14.50%) Tableau
3 18 (13.74%) Power BI
4 17 (12.98%) Amazon RDS
5 15 (11.45%) Looker
5 15 (11.45%) Qlik Sense
6 10 (7.63%) PostgreSQL
7 9 (6.87%) SQL Server Reporting Services
8 7 (5.34%) Hadoop
8 7 (5.34%) MongoDB
9 6 (4.58%) MySQL
10 4 (3.05%) Relational Database
11 3 (2.29%) BusinessObjects
11 3 (2.29%) QlikView
11 3 (2.29%) Yellowfin
12 2 (1.53%) RDBMS
13 1 (0.76%) Big Data
13 1 (0.76%) Data Warehouse
13 1 (0.76%) NoSQL
Development Applications
1 51 (38.93%) Git (software)
2 40 (30.53%) JUnit
3 28 (21.37%) Maven
4 27 (20.61%) Ant
4 27 (20.61%) Apache Ivy
4 27 (20.61%) Bitbucket
4 27 (20.61%) Concordion
4 27 (20.61%) Cucumber
4 27 (20.61%) Gradle
4 27 (20.61%) Mockito
5 22 (16.79%) Atlassian Bamboo
6 20 (15.27%) Team Foundation Server
7 15 (11.45%) Selenium
8 9 (6.87%) Jenkins
9 8 (6.11%) JMeter
10 7 (5.34%) WebDriver
11 6 (4.58%) JIRA
12 4 (3.05%) Visual Studio
13 2 (1.53%) Jasmine
13 2 (1.53%) Mocha
General
1 60 (45.80%) Finance
2 24 (18.32%) Analytical Skills
3 23 (17.56%) Presentation Skills
3 23 (17.56%) Social Skills
4 12 (9.16%) Advertising
5 10 (7.63%) Financial Institution
6 9 (6.87%) Documentation Skills
7 5 (3.82%) Banking
8 4 (3.05%) Billing
8 4 (3.05%) Law
8 4 (3.05%) Legal
9 2 (1.53%) Marketing
9 2 (1.53%) Public Sector
10 1 (0.76%) Publishing
10 1 (0.76%) Retail
Job Titles
1 62 (47.33%) Developer
2 37 (28.24%) Java Developer
3 28 (21.37%) Analyst
4 23 (17.56%) Architect
5 22 (16.79%) Senior Developer
6 20 (15.27%) Senior Java Developer
7 18 (13.74%) Senior Architect
8 16 (12.21%) Full Stack Developer
8 16 (12.21%) Java Architect
8 16 (12.21%) Senior Java Architect
9 15 (11.45%) Technical Leader
10 12 (9.16%) Business Intelligence Analyst
11 10 (7.63%) Software Developer
12 8 (6.11%) SQL Analyst
13 6 (4.58%) Business Intelligence Developer
13 6 (4.58%) Product Manager
14 5 (3.82%) Java Software Developer
14 5 (3.82%) Lead Developer
14 5 (3.82%) Technical Analyst
14 5 (3.82%) Technical Business Analyst
Libraries, Frameworks & Software Standards
1 67 (51.15%) REST
2 66 (50.38%) XML
3 34 (25.95%) Swagger
4 33 (25.19%) Web Services
5 29 (22.14%) JPA
6 28 (21.37%) JDBC
6 28 (21.37%) JMS
7 27 (20.61%) JAX-RS
8 21 (16.03%) AngularJS
9 20 (15.27%) FIX Protocol
10 14 (10.69%) CSS
11 12 (9.16%) React
12 11 (8.40%) HTML
13 10 (7.63%) XSLT
14 9 (6.87%) RESTful
14 9 (6.87%) YAML
15 8 (6.11%) .NET
15 8 (6.11%) Kafka
15 8 (6.11%) Spring
16 7 (5.34%) Apache Thrift
Miscellaneous
1 13 (9.92%) Greenfield Project
2 10 (7.63%) Foreign Exchange (FX)
3 8 (6.11%) Public Cloud
4 7 (5.34%) Hedge funds
5 5 (3.82%) Reinsurance
6 4 (3.05%) Data Centre
7 3 (2.29%) Enterprise Software
7 3 (2.29%) Self-Motivation
8 2 (1.53%) Legacy Applications
9 1 (0.76%) Analytical Mindset
9 1 (0.76%) Derivative
9 1 (0.76%) Market Risk
9 1 (0.76%) Mobile App
9 1 (0.76%) Social Media
Operating Systems
1 26 (19.85%) Linux
2 17 (12.98%) Unix
3 7 (5.34%) Windows
4 3 (2.29%) Apple iOS
5 2 (1.53%) Mac OS
6 1 (0.76%) Android
Processes & Methodologies
1 47 (35.88%) Agile
2 43 (32.82%) TDD
3 40 (30.53%) CI/CD
3 40 (30.53%) Decision-Making
4 29 (22.14%) API Design
4 29 (22.14%) BDD
5 26 (19.85%) Unit Testing
6 25 (19.08%) Scrum
7 24 (18.32%) Full Stack Development
8 20 (15.27%) Microservices
9 19 (14.50%) Business Intelligence
9 19 (14.50%) Line Management
9 19 (14.50%) Multithreading
9 19 (14.50%) Risk Management
9 19 (14.50%) User Stories
10 18 (13.74%) Data Modelling
10 18 (13.74%) Data Visualisation
10 18 (13.74%) Event-Driven
10 18 (13.74%) Event-Driven Architecture
10 18 (13.74%) Visualisation
Programming Languages
1 100 (76.34%) SQL
2 68 (51.91%) Java
3 37 (28.24%) JavaScript
4 13 (9.92%) C#
5 12 (9.16%) Python
6 9 (6.87%) T-SQL
7 7 (5.34%) Bash
7 7 (5.34%) PowerShell
8 6 (4.58%) VBA
9 2 (1.53%) ES6
10 1 (0.76%) C
10 1 (0.76%) ES8
10 1 (0.76%) PL/SQL
10 1 (0.76%) VB.NET
10 1 (0.76%) XAML
Qualifications
1 8 (6.11%) SC Cleared
1 8 (6.11%) Security Cleared
2 6 (4.58%) Degree
3 4 (3.05%) ITIL Certification
4 1 (0.76%) Computer Science Degree
Quality Assurance & Compliance
1 27 (20.61%) QA
2 8 (6.11%) GDPR
3 3 (2.29%) Accessibility
4 1 (0.76%) Data Quality
4 1 (0.76%) Solvency II
System Software
1 28 (21.37%) Docker
2 4 (3.05%) VMware Infrastructure
2 4 (3.05%) VMware NSX
3 3 (2.29%) Active Directory
Systems Management
1 25 (19.08%) Kubernetes
2 15 (11.45%) Terraform
3 4 (3.05%) Ansible
3 4 (3.05%) FortiGate
3 4 (3.05%) Single Sign-On
4 1 (0.76%) Kibana
4 1 (0.76%) logstash
4 1 (0.76%) SCCM
Vendors
1 14 (10.69%) Microsoft
2 6 (4.58%) Oracle
3 5 (3.82%) Red Hat
3 5 (3.82%) ServiceNow
4 4 (3.05%) CA
4 4 (3.05%) Cisco
4 4 (3.05%) Fortinet
4 4 (3.05%) SolarWinds
4 4 (3.05%) VMware
5 1 (0.76%) Cadence
5 1 (0.76%) HubSpot
5 1 (0.76%) OpenText
5 1 (0.76%) Salesforce.com
5 1 (0.76%) Solace
5 1 (0.76%) TIBCO