Period
to 17 September 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 17 September 2021 with a comparison to the same period in the previous 2 years.

JSON
England > London
6 months to
17 Sep 2021
Same period 2020 Same period 2019
Rank 169 183 209
Rank change year-on-year +14 +26 -18
Permanent jobs citing JSON 1,106 416 978
As % of all permanent jobs advertised in London 2.26% 1.98% 1.74%
As % of the Libraries, Frameworks & Software Standards category 4.73% 4.35% 4.47%
Number of salaries quoted 663 324 743
10th Percentile £45,000 £46,250 £41,250
25th Percentile £53,750 £53,750 £48,750
Median annual salary (50th Percentile) £65,000 £70,000 £65,500
Median % change year-on-year -7.14% +6.87% +0.77%
75th Percentile £81,250 £92,813 £82,500
90th Percentile £96,250 £97,500 £95,000
England median annual salary £57,500 £55,000 £52,000
% change year-on-year +4.55% +5.77% -0.43%

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 23,395 9,567 21,859
As % of all permanent IT jobs advertised in London 47.79% 45.47% 38.94%
Number of salaries quoted 13,279 8,136 18,393
10th Percentile £46,250 £46,250 £40,000
25th Percentile £56,250 £55,000 £51,250
Median annual salary (50th Percentile) £72,500 £70,000 £67,500
Median % change year-on-year +3.57% +3.70% +3.85%
75th Percentile £90,000 £90,000 £85,000
90th Percentile £110,000 £115,000 £100,000
England median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +4.55% +6.80%

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 17 September 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 17 September 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 -18 143 £62,500 -29.58% 43
West London +7 102 £65,000 +18.18% 15
South London -5 34 £60,000 -2.04% 3
East London -11 8 £75,000 +50.09% 14
North London -14 3 £110,000 +91.30% 1
JSON
England

For the 6 months to 17 September 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.

1 594 (53.71%) Agile Software Development
2 537 (48.55%) JavaScript
3 439 (39.69%) SQL
4 433 (39.15%) XML
5 423 (38.25%) REST
6 404 (36.53%) HTML
7 401 (36.26%) Java
8 363 (32.82%) Git (software)
9 347 (31.37%) CSS
10 317 (28.66%) Azure
11 309 (27.94%) React
12 299 (27.03%) DevOps
13 298 (26.94%) Node.js
14 297 (26.85%) Finance
15 291 (26.31%) Web Services
16 271 (24.50%) Social Skills
17 264 (23.87%) Python
18 227 (20.52%) AWS
19 226 (20.43%) RESTful
20 225 (20.34%) Microservices
21 212 (19.17%) Docker
22 208 (18.81%) HTML5
23 205 (18.54%) C#
24 204 (18.44%) Jenkins
25 200 (18.08%) Kubernetes
26 194 (17.54%) AngularJS
26 194 (17.54%) .NET
27 191 (17.27%) HTTP
27 191 (17.27%) Software Engineering
28 188 (17.00%) OO

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 61 (5.52%) Confluence
2 53 (4.79%) Elasticsearch
3 42 (3.80%) CMS
3 42 (3.80%) WordPress
4 32 (2.89%) Apache Spark
5 28 (2.53%) IIS
6 25 (2.26%) Tomcat
7 14 (1.27%) JBoss
8 13 (1.18%) MQSeries
9 12 (1.08%) WebSphere
10 11 (0.99%) Drupal
10 11 (0.99%) SharePoint
11 8 (0.72%) Apache
11 8 (0.72%) EPiServer
12 7 (0.63%) Apache Solr
12 7 (0.63%) Oracle SOA Suite
12 7 (0.63%) Umbraco
13 6 (0.54%) Apache Airflow
13 6 (0.54%) Mule
14 4 (0.36%) Luigi
Applications
1 34 (3.07%) Microsoft Office
2 33 (2.98%) Microsoft Excel
3 8 (0.72%) Photoshop
3 8 (0.72%) Sketch
4 7 (0.63%) Microsoft PowerPoint
5 6 (0.54%) Adobe Illustrator
6 4 (0.36%) Adobe XD
6 4 (0.36%) Figma
7 3 (0.27%) Zeplin
8 2 (0.18%) Adobe Creative Suite
8 2 (0.18%) Chatbot
8 2 (0.18%) Fireworks
8 2 (0.18%) InVision
9 1 (0.090%) MS Visio
Business Applications
1 5 (0.45%) NetSuite
1 5 (0.45%) Shopify
2 4 (0.36%) Distributed Ledger
2 4 (0.36%) Dynamics CRM
3 3 (0.27%) Sentinel
4 2 (0.18%) Elite 3E
5 1 (0.090%) Loan IQ
5 1 (0.090%) Magento
5 1 (0.090%) Oracle BPM
5 1 (0.090%) Relativity
5 1 (0.090%) SAP Hybris
Cloud Services
1 317 (28.66%) Azure
2 227 (20.52%) AWS
3 130 (11.75%) Serverless
4 95 (8.59%) SaaS
5 84 (7.59%) GitHub
6 78 (7.05%) GCP
7 67 (6.06%) Power Platform
8 58 (5.24%) npm
8 58 (5.24%) PaaS
9 47 (4.25%) Amazon S3
10 44 (3.98%) Azure Active Directory
11 29 (2.62%) Datadog
11 29 (2.62%) Microsoft 365
12 27 (2.44%) Cloud Computing
13 22 (1.99%) Azure Logic Apps
14 20 (1.81%) IaaS
15 18 (1.63%) Amazon SQS
16 17 (1.54%) Akamai
16 17 (1.54%) AWS Lambda
17 16 (1.45%) Amazon EC2
Communications & Networking
1 191 (17.27%) HTTP
2 59 (5.33%) Broadband
3 49 (4.43%) Internet
4 32 (2.89%) TCP/IP
5 26 (2.35%) Bluetooth
5 26 (2.35%) DVB
6 23 (2.08%) FTP
7 19 (1.72%) Firewall
8 18 (1.63%) SAN
9 15 (1.36%) Network Security
10 14 (1.27%) VPN
11 13 (1.18%) Cisco IOS
12 11 (0.99%) IPsec
13 10 (0.90%) SMS
14 8 (0.72%) BGP
14 8 (0.72%) F5 BIG-IP LTM
14 8 (0.72%) IOS XR
14 8 (0.72%) MPLS
15 6 (0.54%) SSL
16 5 (0.45%) SSH
Database & Business Intelligence
1 179 (16.18%) MongoDB
2 139 (12.57%) Relational Database
3 126 (11.39%) SQL Server
4 106 (9.58%) NoSQL
5 71 (6.42%) MySQL
6 65 (5.88%) Power BI
7 63 (5.70%) Big Data
7 63 (5.70%) Hadoop
8 56 (5.06%) PostgreSQL
9 49 (4.43%) Data Warehouse
10 38 (3.44%) SQL Server Integration Services
11 33 (2.98%) Amazon Aurora
12 32 (2.89%) Redis
13 30 (2.71%) Tableau
14 27 (2.44%) SQL Server Reporting Services
15 23 (2.08%) Amazon DynamoDB
16 22 (1.99%) RDBMS
17 21 (1.90%) Azure SQL Database
18 19 (1.72%) Apache Hive
19 18 (1.63%) HBase
Development Applications
1 363 (32.82%) Git (software)
2 204 (18.44%) Jenkins
3 169 (15.28%) JIRA
4 88 (7.96%) JUnit
5 82 (7.41%) webpack
6 74 (6.69%) Selenium
7 64 (5.79%) gulp
8 56 (5.06%) Mocha
9 50 (4.52%) Bitbucket
10 49 (4.43%) WebDriver
11 47 (4.25%) Visual Studio
12 45 (4.07%) Atlassian Bamboo
12 45 (4.07%) Maven
13 44 (3.98%) Jasmine
14 43 (3.89%) TeamCity
15 41 (3.71%) Postman
16 40 (3.62%) JMeter
17 30 (2.71%) Mockito
18 28 (2.53%) Cypress.io
18 28 (2.53%) Gradle
General
1 297 (26.85%) Finance
2 271 (24.50%) Social Skills
3 106 (9.58%) Banking
4 104 (9.40%) Marketing
5 87 (7.87%) Analytical Skills
6 33 (2.98%) Retail
7 32 (2.89%) Games
7 32 (2.89%) Law
8 27 (2.44%) Retail Banking
9 26 (2.35%) Financial Institution
9 26 (2.35%) Legal
10 25 (2.26%) Inclusion and Diversity
11 23 (2.08%) Documentation Skills
11 23 (2.08%) Investment Banking
11 23 (2.08%) Presentation Skills
12 22 (1.99%) Back Office
13 21 (1.90%) Advertising
14 19 (1.72%) Public Sector
15 14 (1.27%) Manufacturing
16 10 (0.90%) Publishing
Job Titles
1 547 (49.46%) Developer
2 152 (13.74%) Senior Developer
3 101 (9.13%) Software Engineer
4 93 (8.41%) Java Developer
5 86 (7.78%) Full Stack Developer
6 59 (5.33%) Front End Developer (Client-Side Developer)
7 47 (4.25%) Analyst
8 46 (4.16%) .NET Developer
9 45 (4.07%) Architect
10 43 (3.89%) Software Developer
11 42 (3.80%) Senior Java Developer
11 42 (3.80%) Senior Software Engineer
12 41 (3.71%) C# Developer
13 37 (3.35%) DevOps Engineer
14 35 (3.16%) JavaScript Developer
15 33 (2.98%) Consultant
16 31 (2.80%) Azure Engineer
17 30 (2.71%) C++ Developer
18 29 (2.62%) Data Engineer
19 28 (2.53%) React Developer
Libraries, Frameworks & Software Standards
1 433 (39.15%) XML
2 423 (38.25%) REST
3 404 (36.53%) HTML
4 347 (31.37%) CSS
5 309 (27.94%) React
6 298 (26.94%) Node.js
7 291 (26.31%) Web Services
8 226 (20.43%) RESTful
9 208 (18.81%) HTML5
10 194 (17.54%) .NET
10 194 (17.54%) AngularJS
11 182 (16.46%) Spring
12 138 (12.48%) CSS3
12 138 (12.48%) SOAP
13 117 (10.58%) Redux
14 110 (9.95%) jQuery
15 109 (9.86%) Kafka
16 102 (9.22%) Vue.js
17 101 (9.13%) Hibernate
17 101 (9.13%) Spring Boot
Miscellaneous
1 132 (11.93%) User Experience
2 82 (7.41%) Mobile App
3 70 (6.33%) Social Media
4 65 (5.88%) Data Structures
5 43 (3.89%) Enterprise Software
6 36 (3.25%) Self-Motivation
7 31 (2.80%) Greenfield Project
7 31 (2.80%) Public Cloud
7 31 (2.80%) Video\Live Streaming
8 28 (2.53%) Data Centre
9 26 (2.35%) Algorithms
9 26 (2.35%) Digital TV
9 26 (2.35%) MPEG
9 26 (2.35%) STB
10 24 (2.17%) Cloud Native
11 22 (1.99%) Equities
12 21 (1.90%) W3C
13 19 (1.72%) Blog
13 19 (1.72%) Management Information System
13 19 (1.72%) Xbox
Operating Systems
1 106 (9.58%) Linux
2 60 (5.42%) Apple iOS
3 55 (4.97%) Android
4 41 (3.71%) Windows
5 23 (2.08%) Unix
6 8 (0.72%) Windows 10
6 8 (0.72%) Windows Server
6 8 (0.72%) Windows Server 2012
6 8 (0.72%) Windows Server 2016
7 7 (0.63%) tvOS
8 6 (0.54%) CentOS
8 6 (0.54%) Mac OS
8 6 (0.54%) Windows Server 2019
9 4 (0.36%) Tizen
9 4 (0.36%) Ubuntu
9 4 (0.36%) webOS
10 3 (0.27%) Fedora
11 2 (0.18%) Alpine Linux
12 1 (0.090%) Windows Server 2008
Processes & Methodologies
1 594 (53.71%) Agile Software Development
2 299 (27.03%) DevOps
3 225 (20.34%) Microservices
4 191 (17.27%) Software Engineering
5 188 (17.00%) OO
6 173 (15.64%) Continuous Integration
6 173 (15.64%) TDD
7 170 (15.37%) Test Automation
8 160 (14.47%) Scrum
9 155 (14.01%) Problem-Solving
10 146 (13.20%) Full Stack Development
11 129 (11.66%) Front End Development
12 124 (11.21%) Mentoring
13 115 (10.40%) MVC
14 114 (10.31%) Analytics
15 113 (10.22%) Fintech
16 102 (9.22%) Unit Testing
16 102 (9.22%) Web Development
17 100 (9.04%) Computer Science
18 99 (8.95%) Continuous Improvement
Programming Languages
1 537 (48.55%) JavaScript
2 439 (39.69%) SQL
3 401 (36.26%) Java
4 264 (23.87%) Python
5 205 (18.54%) C#
6 114 (10.31%) TypeScript
7 97 (8.77%) PowerShell
8 88 (7.96%) PHP
9 83 (7.50%) Bash Shell
10 74 (6.69%) Groovy
11 64 (5.79%) Java 8
12 56 (5.06%) ES6
13 51 (4.61%) C++
14 48 (4.34%) C
15 38 (3.44%) Scala
16 34 (3.07%) Ruby
17 32 (2.89%) PL/SQL
18 30 (2.71%) Go
19 24 (2.17%) Kotlin
19 24 (2.17%) T-SQL
Qualifications
1 102 (9.22%) Degree
2 33 (2.98%) Computer Science Degree
3 15 (1.36%) Security Cleared
4 14 (1.27%) SC Cleared
5 11 (0.99%) ISEB
6 9 (0.81%) ISTQB
7 8 (0.72%) CCNP
7 8 (0.72%) Cisco Certification
8 7 (0.63%) Master's Degree
9 6 (0.54%) SAFe Agilist
10 5 (0.45%) ITIL Foundation Certificate
11 4 (0.36%) MOS
12 3 (0.27%) CFA
12 3 (0.27%) DBS Check
12 3 (0.27%) GCFA
12 3 (0.27%) GCIA
12 3 (0.27%) GCIH
12 3 (0.27%) ISEB Practitioner
12 3 (0.27%) ISTQB Foundation Certification
12 3 (0.27%) SANS
Quality Assurance & Compliance
1 95 (8.59%) QA
2 41 (3.71%) Accessibility
3 10 (0.90%) Data Quality
4 6 (0.54%) GDPR
5 5 (0.45%) GRC
5 5 (0.45%) NIST
6 2 (0.18%) ISO 15022
6 2 (0.18%) ISO 20022
6 2 (0.18%) WAI
6 2 (0.18%) WCAG
7 1 (0.090%) SLA
System Software
1 212 (19.17%) Docker
2 44 (3.98%) Active Directory
3 18 (1.63%) VMware Infrastructure
4 13 (1.18%) HDFS
5 7 (0.63%) Ceph
6 4 (0.36%) VMware NSX
7 2 (0.18%) vSphere
8 1 (0.090%) BitLocker
Systems Management
1 200 (18.08%) Kubernetes
2 102 (9.22%) Terraform
3 64 (5.79%) Ansible
4 13 (1.18%) Puppet
5 12 (1.08%) Control-M
5 12 (1.08%) Opscode Chef
6 10 (0.90%) Docker Swarm
7 7 (0.63%) Galera Cluster
8 4 (0.36%) FortiGate
8 4 (0.36%) Kibana
8 4 (0.36%) Microsoft Intune
9 3 (0.27%) logstash
9 3 (0.27%) Prometheus
10 2 (0.18%) SCCM
10 2 (0.18%) SCOM
11 1 (0.090%) Automic
11 1 (0.090%) Istio
11 1 (0.090%) Packer
11 1 (0.090%) WMI
11 1 (0.090%) ZABBIX
Vendors
1 100 (9.04%) Microsoft
2 84 (7.59%) Google
3 81 (7.32%) Oracle
4 36 (3.25%) Splunk
5 30 (2.71%) Salesforce.com
6 27 (2.44%) MuleSoft
6 27 (2.44%) Spotify
7 26 (2.35%) YouTube
8 25 (2.26%) SolarWinds
8 25 (2.26%) Sony
9 23 (2.08%) LexisNexis
10 22 (1.99%) Cisco
10 22 (1.99%) VMware
11 19 (1.72%) ServiceNow
12 18 (1.63%) IBM
13 16 (1.45%) Solace
14 14 (1.27%) Fidessa
14 14 (1.27%) TIBCO
15 13 (1.18%) Adobe
15 13 (1.18%) Apple