Period
to 15 June 2021

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

JSON
England > London
6 months to
15 Jun 2021
Same period 2020 Same period 2019
Rank 190 212 186
Rank change year-on-year +22 -26 +12
Permanent jobs citing JSON 736 589 1,100
As % of all permanent jobs advertised in London 1.93% 1.69% 1.91%
As % of the Libraries, Frameworks & Software Standards category 4.16% 4.08% 4.88%
Number of salaries quoted 508 469 830
10th Percentile £45,250 £42,500 £40,573
25th Percentile £52,500 £50,000 £50,000
Median annual salary (50th Percentile) £65,000 £67,500 £65,000
Median % change year-on-year -3.70% +3.85% +4.00%
75th Percentile £80,000 £87,500 £82,500
90th Percentile £100,000 £97,500 £93,750
England median annual salary £55,000 £55,000 £55,000

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

All Software Libraries and Frameworks
London
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 17,704 14,428 22,528
As % of all permanent IT jobs advertised in London 46.37% 41.33% 39.13%
Number of salaries quoted 11,520 12,005 18,906
10th Percentile £45,000 £42,732 £38,750
25th Percentile £55,000 £52,500 £50,000
Median annual salary (50th Percentile) £71,500 £70,000 £66,026
Median % change year-on-year +2.14% +6.02% +5.64%
75th Percentile £90,000 £87,500 £82,500
90th Percentile £106,250 £105,000 £96,250
England median annual salary £57,500 £56,000 £53,500
% change year-on-year +2.68% +4.67% +7.00%

JSON
Job Vacancy Trend in London

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

Job vacancy trend for JSON in London

JSON
Salary Trend in London

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

Salary trend for JSON in London

JSON
Salary Histogram in London

Salary distribution for jobs citing JSON in London over the 6 months to 15 June 2021.

Salary histogram for JSON in London

JSON
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JSON within the London region over the 6 months to 15 June 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
Central London +18 136 £65,000 -10.34% 52
South London +15 30 £62,500 - 1
West London +6 28 £64,000 +6.67% 23
East London +9 6 £58,750 +17.57% 16
North London +19 3 £110,000 +91.30%
JSON
England

For the 6 months to 15 June 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 London region with a requirement for JSON.

1 333 (45.24%) JavaScript
1 333 (45.24%) SQL
2 326 (44.29%) Agile Software Development
3 299 (40.63%) XML
4 274 (37.23%) REST
5 259 (35.19%) HTML
6 258 (35.05%) Java
7 241 (32.74%) Git (software)
8 240 (32.61%) CSS
9 238 (32.34%) Azure
10 216 (29.35%) Social Skills
11 214 (29.08%) DevOps
12 209 (28.40%) Web Services
13 199 (27.04%) Finance
14 193 (26.22%) Python
15 181 (24.59%) Node.js
16 179 (24.32%) React
17 177 (24.05%) RESTful
18 159 (21.60%) C#
19 157 (21.33%) .NET
20 155 (21.06%) Docker
21 147 (19.97%) OO
22 146 (19.84%) Microservices
23 143 (19.43%) Test Automation
24 139 (18.89%) AngularJS
25 135 (18.34%) AWS
26 133 (18.07%) Jenkins
27 124 (16.85%) Kubernetes
28 123 (16.71%) Spring
29 120 (16.30%) JIRA

JSON
Co-occurring IT Skills in 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 53 (7.20%) Confluence
2 37 (5.03%) CMS
3 29 (3.94%) IIS
4 25 (3.40%) Tomcat
5 23 (3.13%) Apache Spark
6 22 (2.99%) Apache
7 20 (2.72%) Elasticsearch
8 18 (2.45%) EPiServer
9 14 (1.90%) WordPress
10 12 (1.63%) Drupal
11 11 (1.49%) JBoss
11 11 (1.49%) Oracle SOA Suite
11 11 (1.49%) WebSphere
12 10 (1.36%) Apache Solr
13 5 (0.68%) Apache Airflow
13 5 (0.68%) MQSeries
13 5 (0.68%) Oracle Application Server
14 4 (0.54%) Luigi
14 4 (0.54%) Oracle Workflow
14 4 (0.54%) Umbraco
Applications
1 28 (3.80%) Microsoft Office
2 23 (3.13%) Microsoft Excel
3 8 (1.09%) Sketch
4 7 (0.95%) Spreadsheet
5 6 (0.82%) Photoshop
6 4 (0.54%) Adobe Creative Suite
6 4 (0.54%) Adobe Illustrator
6 4 (0.54%) Figma
6 4 (0.54%) Fireworks
7 3 (0.41%) Zeplin
8 2 (0.27%) Adobe XD
9 1 (0.14%) Chatbot
9 1 (0.14%) Microsoft PowerPoint
Business Applications
1 4 (0.54%) Shopify
2 3 (0.41%) Sparx Enterprise Architect
3 2 (0.27%) Distributed Ledger
4 1 (0.14%) Dynamics CRM
4 1 (0.14%) Magento
4 1 (0.14%) NetSuite
Cloud Services
1 238 (32.34%) Azure
2 135 (18.34%) AWS
3 74 (10.05%) SaaS
4 56 (7.61%) Serverless
5 49 (6.66%) GitHub
6 46 (6.25%) Power Platform
7 44 (5.98%) GCP
8 38 (5.16%) npm
9 35 (4.76%) PaaS
10 23 (3.13%) Azure Active Directory
11 21 (2.85%) Cloud Computing
11 21 (2.85%) Microsoft 365
12 20 (2.72%) Amazon S3
13 18 (2.45%) IaaS
14 15 (2.04%) Amazon EC2
15 14 (1.90%) Datadog
16 13 (1.77%) Azure Cosmos DB
17 12 (1.63%) Snowflake
18 11 (1.49%) Azure Logic Apps
19 10 (1.36%) Power Automate
Communications & Networking
1 111 (15.08%) HTTP
2 17 (2.31%) FTP
2 17 (2.31%) Network Security
2 17 (2.31%) SSL
3 16 (2.17%) Firewall
4 15 (2.04%) TCP/IP
5 13 (1.77%) VPN
6 12 (1.63%) Broadband
6 12 (1.63%) WAN
7 11 (1.49%) Internet
8 10 (1.36%) IPsec
8 10 (1.36%) SAN
9 9 (1.22%) LAN
10 6 (0.82%) SSH
10 6 (0.82%) Wireless
11 5 (0.68%) Bluetooth
11 5 (0.68%) Cisco ISE
11 5 (0.68%) DVB
11 5 (0.68%) Ethernet
11 5 (0.68%) SMS
Database & Business Intelligence
1 117 (15.90%) MongoDB
2 113 (15.35%) SQL Server
3 91 (12.36%) Relational Database
4 85 (11.55%) NoSQL
5 60 (8.15%) MySQL
6 47 (6.39%) Big Data
7 45 (6.11%) Hadoop
8 44 (5.98%) PostgreSQL
9 37 (5.03%) Power BI
10 35 (4.76%) Data Warehouse
11 28 (3.80%) Azure SQL Database
11 28 (3.80%) Tableau
12 27 (3.67%) SQL Server Integration Services
13 21 (2.85%) SQL Server Reporting Services
14 18 (2.45%) Redis
15 17 (2.31%) Amazon Aurora
15 17 (2.31%) RDBMS
16 15 (2.04%) SQL Server 2012
17 13 (1.77%) Oracle Database
18 12 (1.63%) Neo4j
Development Applications
1 241 (32.74%) Git (software)
2 133 (18.07%) Jenkins
3 120 (16.30%) JIRA
4 63 (8.56%) JUnit
5 62 (8.42%) gulp
6 48 (6.52%) Selenium
7 47 (6.39%) Mocha
8 46 (6.25%) webpack
9 42 (5.71%) Visual Studio
10 36 (4.89%) Postman
11 34 (4.62%) Maven
12 32 (4.35%) Cypress.io
13 29 (3.94%) Mockito
14 28 (3.80%) WebDriver
15 25 (3.40%) Atlassian Bamboo
15 25 (3.40%) Gradle
15 25 (3.40%) JMeter
16 24 (3.26%) TeamCity
17 22 (2.99%) Team Foundation Server
18 21 (2.85%) Bitbucket
General
1 216 (29.35%) Social Skills
2 199 (27.04%) Finance
3 79 (10.73%) Banking
4 63 (8.56%) Analytical Skills
5 61 (8.29%) Marketing
6 24 (3.26%) Retail
7 21 (2.85%) Documentation Skills
8 18 (2.45%) Back Office
8 18 (2.45%) Law
9 15 (2.04%) Advertising
9 15 (2.04%) Investment Banking
10 13 (1.77%) Games
11 11 (1.49%) Financial Institution
11 11 (1.49%) Legal
11 11 (1.49%) Public Sector
12 8 (1.09%) Italian Language
12 8 (1.09%) Spanish Language
13 7 (0.95%) Military
13 7 (0.95%) Portuguese Language
13 7 (0.95%) Retail Banking
Job Titles
1 362 (49.18%) Developer
2 84 (11.41%) Senior Developer
3 60 (8.15%) Full Stack Developer
4 58 (7.88%) Java Developer
5 49 (6.66%) Software Engineer
6 46 (6.25%) .NET Developer
7 45 (6.11%) Front End Developer (Client-Side Developer)
8 42 (5.71%) C# Developer
9 38 (5.16%) Analyst
10 37 (5.03%) Architect
11 33 (4.48%) Consultant
12 31 (4.21%) C# .NET Developer
13 27 (3.67%) Data Engineer
14 24 (3.26%) Applications Developer
14 24 (3.26%) DevOps Engineer
15 21 (2.85%) Senior Software Engineer
16 20 (2.72%) Web Developer
17 19 (2.58%) Mobile Developer
18 18 (2.45%) React Developer
18 18 (2.45%) SQL Developer
Libraries, Frameworks & Software Standards
1 299 (40.63%) XML
2 274 (37.23%) REST
3 259 (35.19%) HTML
4 240 (32.61%) CSS
5 209 (28.40%) Web Services
6 181 (24.59%) Node.js
7 179 (24.32%) React
8 177 (24.05%) RESTful
9 157 (21.33%) .NET
10 139 (18.89%) AngularJS
11 123 (16.71%) Spring
12 116 (15.76%) HTML5
13 115 (15.63%) SOAP
14 90 (12.23%) jQuery
15 86 (11.68%) Kafka
16 84 (11.41%) Sass
17 81 (11.01%) CSS3
18 72 (9.78%) Redux
19 68 (9.24%) Hibernate
20 65 (8.83%) Vue.js
Miscellaneous
1 82 (11.14%) User Experience
2 72 (9.78%) Mobile App
3 43 (5.84%) Data Structures
4 39 (5.30%) Public Cloud
5 30 (4.08%) Self-Motivation
6 22 (2.99%) Enterprise Software
6 22 (2.99%) Equities
7 21 (2.85%) Greenfield Project
7 21 (2.85%) Management Information System
8 17 (2.31%) Data Centre
9 15 (2.04%) Linux Command Line
9 15 (2.04%) Social Media
10 14 (1.90%) Derivative
11 11 (1.49%) N-Tier
11 11 (1.49%) Video\Live Streaming
11 11 (1.49%) W3C
12 10 (1.36%) Renewable Energy
12 10 (1.36%) SCADA
13 9 (1.22%) NHS
13 9 (1.22%) Reference Data
Operating Systems
1 65 (8.83%) Linux
2 47 (6.39%) Android
3 45 (6.11%) Apple iOS
4 30 (4.08%) Windows
5 18 (2.45%) Unix
6 11 (1.49%) Ubuntu
6 11 (1.49%) Windows Server
7 8 (1.09%) Windows Server 2016
8 7 (0.95%) Debian
9 6 (0.82%) tvOS
10 5 (0.68%) Windows 10
10 5 (0.68%) Windows Server 2012
10 5 (0.68%) Windows Server 2019
11 4 (0.54%) CentOS
12 3 (0.41%) Fedora
13 2 (0.27%) Tizen
13 2 (0.27%) webOS
14 1 (0.14%) Alpine Linux
14 1 (0.14%) Mac OS
Processes & Methodologies
1 326 (44.29%) Agile Software Development
2 214 (29.08%) DevOps
3 147 (19.97%) OO
4 146 (19.84%) Microservices
5 143 (19.43%) Test Automation
6 113 (15.35%) Problem-Solving
7 110 (14.95%) Software Engineering
7 110 (14.95%) TDD
8 109 (14.81%) Scrum
9 106 (14.40%) Continuous Integration
10 95 (12.91%) MVC
11 94 (12.77%) Web Development
12 84 (11.41%) Unit Testing
13 81 (11.01%) Fintech
14 76 (10.33%) Front End Development
15 75 (10.19%) Mentoring
16 73 (9.92%) BDD
17 69 (9.38%) OOP
18 68 (9.24%) SDLC
19 64 (8.70%) Computer Science
Programming Languages
1 333 (45.24%) JavaScript
1 333 (45.24%) SQL
2 258 (35.05%) Java
3 193 (26.22%) Python
4 159 (21.60%) C#
5 62 (8.42%) PowerShell
5 62 (8.42%) TypeScript
6 61 (8.29%) PHP
7 58 (7.88%) Java 8
8 42 (5.71%) Groovy
9 34 (4.62%) Bash Shell
10 33 (4.48%) ES6
10 33 (4.48%) PL/SQL
11 30 (4.08%) T-SQL
12 29 (3.94%) Scala
13 28 (3.80%) ES7
14 25 (3.40%) Ruby
15 24 (3.26%) C++
16 19 (2.58%) C
16 19 (2.58%) VBA
Qualifications
1 79 (10.73%) Degree
2 28 (3.80%) Computer Science Degree
3 13 (1.77%) Security Cleared
4 12 (1.63%) SC Cleared
5 11 (1.49%) ITIL Foundation Certificate
6 9 (1.22%) Master's Degree
7 4 (0.54%) MOS
8 3 (0.41%) ISEB
8 3 (0.41%) ISEB Practitioner
8 3 (0.41%) ISTQB
8 3 (0.41%) ISTQB Foundation Certification
9 2 (0.27%) AAT
9 2 (0.27%) ACCA
9 2 (0.27%) CFA
9 2 (0.27%) CIMA
9 2 (0.27%) DBS Check
10 1 (0.14%) CEH
10 1 (0.14%) CISSP
10 1 (0.14%) ITIL Certification
10 1 (0.14%) PhD
Quality Assurance & Compliance
1 80 (10.87%) QA
2 29 (3.94%) Accessibility
3 5 (0.68%) Data Quality
4 4 (0.54%) GDPR
4 4 (0.54%) WAI
4 4 (0.54%) WCAG
5 3 (0.41%) GRC
6 2 (0.27%) HL7
7 1 (0.14%) GxP
7 1 (0.14%) Sarbanes-Oxley
System Software
1 155 (21.06%) Docker
2 26 (3.53%) Active Directory
3 13 (1.77%) VMware Infrastructure
4 6 (0.82%) Ceph
5 5 (0.68%) HDFS
5 5 (0.68%) VMware NSX
6 4 (0.54%) Virtual Machines
7 1 (0.14%) vSphere
Systems Management
1 124 (16.85%) Kubernetes
2 48 (6.52%) Terraform
3 41 (5.57%) Ansible
4 12 (1.63%) Control-M
5 9 (1.22%) Docker Swarm
6 7 (0.95%) Opscode Chef
6 7 (0.95%) Puppet
7 6 (0.82%) Galera Cluster
8 5 (0.68%) FortiGate
9 3 (0.41%) Active Directory Federation Services
10 2 (0.27%) Microsoft Intune
11 1 (0.14%) CA Service Virtualization
11 1 (0.14%) MIIS
11 1 (0.14%) Single Sign-On
Vendors
1 97 (13.18%) Microsoft
2 64 (8.70%) Oracle
3 55 (7.47%) Google
4 27 (3.67%) Salesforce.com
5 20 (2.72%) Sony
6 19 (2.58%) SolarWinds
7 16 (2.17%) IBM
7 16 (2.17%) VMware
8 15 (2.04%) Atlassian
9 13 (1.77%) AppDynamics
10 12 (1.63%) ServiceNow
10 12 (1.63%) Splunk
11 11 (1.49%) Cisco
11 11 (1.49%) Fidessa
12 10 (1.36%) MuleSoft
12 10 (1.36%) Solace
12 10 (1.36%) Xamarin
13 9 (1.22%) Adobe
13 9 (1.22%) Apple
14 8 (1.09%) Bloomberg