Period
to 27 November 2021

The following table provides summary statistics for permanent job vacancies advertised in Central 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 27 November 2021 with a comparison to the same period in the previous 2 years.

JSON
London > Central London
6 months to
27 Nov 2021
Same period 2020 Same period 2019
Rank 123 121 190
Rank change year-on-year -2 +69 -26
Permanent jobs citing JSON 159 110 206
As % of all permanent jobs advertised in Central London 2.27% 2.38% 1.64%
As % of the Libraries, Frameworks & Software Standards category 5.87% 5.44% 4.14%
Number of salaries quoted 139 82 177
10th Percentile £38,750 £57,500 £44,000
25th Percentile £50,250 £67,500 £52,500
Median annual salary (50th Percentile) £60,000 £75,000 £70,000
Median % change year-on-year -20.00% +7.14% -
75th Percentile £87,500 £95,000 £80,000
90th Percentile £105,000 " £96,250
London median annual salary £65,000 £67,500 £62,500
% change year-on-year -3.70% +8.00% -3.85%

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 Central London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
Central London
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 2,708 2,023 4,979
As % of all permanent IT jobs advertised in Central London 38.68% 43.73% 39.53%
Number of salaries quoted 2,414 1,785 4,483
10th Percentile £48,750 £47,500 £42,500
25th Percentile £57,500 £57,000 £53,750
Median annual salary (50th Percentile) £75,000 £70,000 £70,000
Median % change year-on-year +7.14% - +7.69%
75th Percentile £95,000 £87,500 £82,500
90th Percentile £110,000 £102,500 £95,000
London median annual salary £75,000 £70,000 £70,000
% change year-on-year +7.14% - +7.69%

JSON
Job Vacancy Trend in Central London

Job postings citing JSON as a proportion of all IT jobs advertised in Central London.

Job vacancy trend for JSON in Central London

JSON
Salary Trend in Central London

3-month moving average salary quoted in jobs citing JSON in Central London.

Salary trend for JSON in Central London

JSON
Salary Histogram in Central London

Salary distribution for jobs citing JSON in Central London over the 6 months to 27 November 2021.

Salary histogram for JSON in Central London

JSON
Job Locations in Central London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JSON within the Central London region over the 6 months to 27 November 2021. 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
Job
Vacancies
City of London -4 139 £60,000 -27.27% 52
Camden - 3 £82,500 - 1
Southwark - 1 £50,000 -
JSON
London

For the 6 months to 27 November 2021, 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 Central London region with a requirement for JSON.

1 93 (58.49%) SQL
2 67 (42.14%) Azure
3 63 (39.62%) Agile Software Development
4 59 (37.11%) XML
5 57 (35.85%) Finance
6 50 (31.45%) DevOps
7 43 (27.04%) .NET
8 41 (25.79%) C#
8 41 (25.79%) JavaScript
9 40 (25.16%) REST
10 33 (20.75%) Microsoft
11 31 (19.50%) HTML
11 31 (19.50%) AWS
12 30 (18.87%) Java
13 29 (18.24%) CSS
14 28 (17.61%) Python
14 28 (17.61%) Social Skills
15 27 (16.98%) Power Platform
15 27 (16.98%) Power BI
16 26 (16.35%) Terraform
16 26 (16.35%) React
17 25 (15.72%) Web Services
18 24 (15.09%) Active Directory
18 24 (15.09%) OO
19 23 (14.47%) Scrum
19 23 (14.47%) Test Automation
20 22 (13.84%) TDD
20 22 (13.84%) SQL Server
21 21 (13.21%) JIRA
21 21 (13.21%) PowerShell

JSON
Co-occurring IT Skills in Central 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 7 (4.40%) Confluence
2 5 (3.14%) IIS
2 5 (3.14%) Jetty
3 4 (2.52%) Appian
4 2 (1.26%) Apache
4 2 (1.26%) Apache Airflow
4 2 (1.26%) Apache Spark
4 2 (1.26%) nginx
5 1 (0.63%) Cloud Foundry
5 1 (0.63%) CMS
5 1 (0.63%) ColdFusion
5 1 (0.63%) Elasticsearch
5 1 (0.63%) EPiServer
5 1 (0.63%) Tomcat
5 1 (0.63%) WebSphere
Applications
1 11 (6.92%) Microsoft Office
2 5 (3.14%) Microsoft Excel
3 3 (1.89%) InVision
3 3 (1.89%) Sketch
4 2 (1.26%) Microsoft PowerPoint
5 1 (0.63%) MS Visio
Business Applications
1 2 (1.26%) Sentinel
2 1 (0.63%) Oracle BPM
2 1 (0.63%) Relativity
Cloud Services
1 67 (42.14%) Azure
2 31 (19.50%) AWS
3 27 (16.98%) Power Platform
4 20 (12.58%) Serverless
5 19 (11.95%) SaaS
6 15 (9.43%) AWS Lambda
7 14 (8.81%) IaaS
8 13 (8.18%) Amazon CloudWatch
8 13 (8.18%) AWS CloudFormation
8 13 (8.18%) Azure Active Directory
8 13 (8.18%) Azure Logic Apps
9 12 (7.55%) Amazon ECS
10 11 (6.92%) Amazon EC2
10 11 (6.92%) Virtual Private Cloud
11 6 (3.77%) PaaS
12 5 (3.14%) Amazon S3
13 4 (2.52%) GCP
14 3 (1.89%) Amazon SQS
14 3 (1.89%) Google Analytics
14 3 (1.89%) Microsoft 365
Communications & Networking
1 16 (10.06%) HTTP
2 8 (5.03%) FTP
3 6 (3.77%) Firewall
4 5 (3.14%) Cisco Firepower
4 5 (3.14%) Cisco ISE
4 5 (3.14%) Ethernet
4 5 (3.14%) LAN
4 5 (3.14%) Network Security
4 5 (3.14%) SD-WAN
4 5 (3.14%) WAN
5 3 (1.89%) IPsec
5 3 (1.89%) VPN
6 2 (1.26%) Internet
6 2 (1.26%) VoIP
7 1 (0.63%) SAN
7 1 (0.63%) SMTP
Database & Business Intelligence
1 27 (16.98%) Power BI
2 22 (13.84%) SQL Server
3 14 (8.81%) Tableau
4 9 (5.66%) NoSQL
5 8 (5.03%) Hadoop
5 8 (5.03%) Looker
5 8 (5.03%) MongoDB
5 8 (5.03%) Qlik Sense
6 7 (4.40%) MySQL
6 7 (4.40%) Relational Database
7 6 (3.77%) Big Data
7 6 (3.77%) Data Warehouse
8 4 (2.52%) Parquet
9 3 (1.89%) Data Lake
9 3 (1.89%) PostgreSQL
9 3 (1.89%) SQL Server Integration Services
9 3 (1.89%) SQL Server Reporting Services
10 2 (1.26%) Amazon Athena
10 2 (1.26%) Azure SQL Database
10 2 (1.26%) RDBMS
Development Applications
1 21 (13.21%) JIRA
2 19 (11.95%) Git (software)
3 17 (10.69%) Selenium
4 15 (9.43%) Jenkins
4 15 (9.43%) JUnit
5 11 (6.92%) Atlassian Bamboo
5 11 (6.92%) WebDriver
6 10 (6.29%) Cucumber
6 10 (6.29%) JMeter
7 9 (5.66%) Bitbucket
8 6 (3.77%) Gradle
8 6 (3.77%) Jasmine
8 6 (3.77%) Maven
8 6 (3.77%) Mocha
9 5 (3.14%) Ant
9 5 (3.14%) Apache Ivy
9 5 (3.14%) Concordion
9 5 (3.14%) Mockito
10 4 (2.52%) REST Assured
10 4 (2.52%) Visual Studio
General
1 57 (35.85%) Finance
2 28 (17.61%) Social Skills
3 17 (10.69%) Banking
4 16 (10.06%) Analytical Skills
5 14 (8.81%) Presentation Skills
6 11 (6.92%) Marketing
6 11 (6.92%) Pharmaceutical
7 10 (6.29%) Investment Banking
8 7 (4.40%) Advertising
9 6 (3.77%) Legal
10 4 (2.52%) Law
10 4 (2.52%) Retail Banking
11 3 (1.89%) Automotive
11 3 (1.89%) Documentation Skills
11 3 (1.89%) Italian Language
11 3 (1.89%) Portuguese Language
11 3 (1.89%) Public Sector
11 3 (1.89%) Retail
11 3 (1.89%) Spanish Language
12 2 (1.26%) Electronics
Job Titles
1 81 (50.94%) Developer
2 25 (15.72%) Senior Developer
3 14 (8.81%) Analyst
3 14 (8.81%) Junior
4 12 (7.55%) Backend Developer
5 11 (6.92%) Applications Engineer
5 11 (6.92%) Deployment Engineer
5 11 (6.92%) Infrastructure Deployment Engineer
5 11 (6.92%) Infrastructure Engineer
5 11 (6.92%) Senior Backend Developer
6 10 (6.29%) .NET Developer
6 10 (6.29%) React Developer
7 9 (5.66%) Java Developer
8 8 (5.03%) Azure Developer
8 8 (5.03%) Business Intelligence Developer
8 8 (5.03%) Software Engineer
9 7 (4.40%) Azure Engineer
9 7 (4.40%) Citrix Engineer
9 7 (4.40%) Full Stack Developer
9 7 (4.40%) Junior Developer
Libraries, Frameworks & Software Standards
1 59 (37.11%) XML
2 43 (27.04%) .NET
3 40 (25.16%) REST
4 31 (19.50%) HTML
5 29 (18.24%) CSS
6 26 (16.35%) React
7 25 (15.72%) Web Services
8 19 (11.95%) AngularJS
9 16 (10.06%) SOAP
10 15 (9.43%) Kafka
11 14 (8.81%) HTML5
12 13 (8.18%) RESTful
13 12 (7.55%) jQuery
14 11 (6.92%) .NET Framework
14 11 (6.92%) Ajax
14 11 (6.92%) Apache Thrift
14 11 (6.92%) ASP.NET
14 11 (6.92%) CSS3
14 11 (6.92%) Node.js
15 8 (5.03%) Swagger
Miscellaneous
1 18 (11.32%) Greenfield Project
2 15 (9.43%) Enterprise Software
3 13 (8.18%) Mobile App
4 11 (6.92%) Enterprise Cloud
5 9 (5.66%) User Experience
6 7 (4.40%) Equities
6 7 (4.40%) Public Cloud
7 5 (3.14%) Data Centre
7 5 (3.14%) Data Structures
8 4 (2.52%) Management Information System
9 3 (1.89%) Credit Risk
9 3 (1.89%) Foreign Exchange (FX)
9 3 (1.89%) Renewable Energy
9 3 (1.89%) SCADA
10 2 (1.26%) Algorithms
10 2 (1.26%) Legacy Systems
10 2 (1.26%) Marketing Technology
10 2 (1.26%) Media Streaming
10 2 (1.26%) Self-Motivation
10 2 (1.26%) Video\Live Streaming
Operating Systems
1 20 (12.58%) Windows
2 17 (10.69%) Linux
3 12 (7.55%) Android
3 12 (7.55%) Apple iOS
3 12 (7.55%) Windows Server
4 8 (5.03%) Unix
5 2 (1.26%) Mac OS
6 1 (0.63%) Windows 10
Processes & Methodologies
1 63 (39.62%) Agile Software Development
2 50 (31.45%) DevOps
3 24 (15.09%) OO
4 23 (14.47%) Scrum
4 23 (14.47%) Test Automation
5 22 (13.84%) TDD
6 19 (11.95%) Infrastructure as Code
7 16 (10.06%) BDD
7 16 (10.06%) Business Intelligence
7 16 (10.06%) Cybersecurity
7 16 (10.06%) SDLC
7 16 (10.06%) Unit Testing
8 15 (9.43%) Continuous Integration
8 15 (9.43%) Fintech
8 15 (9.43%) Mentoring
8 15 (9.43%) Microservices
8 15 (9.43%) Visualisation
9 14 (8.81%) Infrastructure Automation
9 14 (8.81%) ITIL
10 13 (8.18%) CRM
Programming Languages
1 93 (58.49%) SQL
2 41 (25.79%) C#
2 41 (25.79%) JavaScript
3 30 (18.87%) Java
4 28 (17.61%) Python
5 21 (13.21%) PowerShell
6 10 (6.29%) Bash Shell
7 8 (5.03%) Perl
8 7 (4.40%) T-SQL
8 7 (4.40%) VBA
9 6 (3.77%) PHP
10 5 (3.14%) VB
11 4 (2.52%) Scala
12 3 (1.89%) PL/SQL
12 3 (1.89%) R
12 3 (1.89%) Ruby
12 3 (1.89%) TypeScript
13 2 (1.26%) C
13 2 (1.26%) Java 8
14 1 (0.63%) Java 11
Qualifications
1 10 (6.29%) Degree
1 10 (6.29%) SC Cleared
1 10 (6.29%) Security Cleared
2 2 (1.26%) GCFA
2 2 (1.26%) GCFE
2 2 (1.26%) GCIA
2 2 (1.26%) GCIH
2 2 (1.26%) SANS
3 1 (0.63%) AWS Certification
3 1 (0.63%) Computer Science Degree
3 1 (0.63%) DBS Check
3 1 (0.63%) ISEB
3 1 (0.63%) Master's Degree
Quality Assurance & Compliance
1 19 (11.95%) QA
2 3 (1.89%) GDPR
3 1 (0.63%) Data Quality
3 1 (0.63%) ISO 15022
3 1 (0.63%) ISO 20022
System Software
1 24 (15.09%) Active Directory
2 11 (6.92%) Hyper-V
2 11 (6.92%) Microsoft App-V
2 11 (6.92%) XenApp
3 8 (5.03%) Docker
4 7 (4.40%) VMware Infrastructure
5 5 (3.14%) VMware NSX
6 1 (0.63%) BitLocker
Systems Management
1 26 (16.35%) Terraform
2 15 (9.43%) Kubernetes
3 11 (6.92%) EdgeSight
3 11 (6.92%) Nagios
3 11 (6.92%) SCCM
3 11 (6.92%) SCOM
3 11 (6.92%) SCOrch
3 11 (6.92%) SCVMM
4 6 (3.77%) Ansible
5 5 (3.14%) FortiGate
6 1 (0.63%) Automic
6 1 (0.63%) Istio
6 1 (0.63%) Microsoft Intune
6 1 (0.63%) Opscode Chef
6 1 (0.63%) Puppet
6 1 (0.63%) Single Sign-On
6 1 (0.63%) WMI
Vendors
1 33 (20.75%) Microsoft
2 11 (6.92%) Citrix
2 11 (6.92%) HP
3 8 (5.03%) Google
4 7 (4.40%) Fidessa
4 7 (4.40%) VMware
5 5 (3.14%) CA
5 5 (3.14%) Cisco
5 5 (3.14%) Fortinet
5 5 (3.14%) Oracle
5 5 (3.14%) SolarWinds
6 3 (1.89%) MuleSoft
6 3 (1.89%) OutSystems
7 2 (1.26%) Concur
7 2 (1.26%) Jitterbit
7 2 (1.26%) Perfecto Mobile
7 2 (1.26%) SAP
7 2 (1.26%) SnapLogic
7 2 (1.26%) Sun
7 2 (1.26%) Zend