Period
to 23 August 2019

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 23 August 2019 with a comparison to the same period in the previous 2 years.

JSON
England > London
6 months to
23 Aug 2019
Same period 2018 Same period 2017
Rank 201 187 181
Rank change year-on-year -14 -6 -37
Permanent jobs citing JSON 984 1,332 1,535
As % of all permanent IT jobs advertised in London 1.75% 1.93% 2.07%
As % of the Libraries, Frameworks & Software Standards category 4.47% 4.77% 5.25%
Number of salaries quoted 734 1,015 1,183
London median annual salary £65,000 £65,000 £57,500
Median salary % change year-on-year - +13.04% -
10th Percentile £41,250 £37,500 £39,750
90th Percentile £95,000 £90,000 £81,650
England median annual salary £52,500 £50,000 £47,500
% change year-on-year +5.00% +5.26% -5.00%

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 22,001 27,932 29,247
As % of all permanent IT jobs advertised in London 39.07% 40.50% 39.53%
Number of salaries quoted 18,425 22,828 23,792
London median annual salary £67,500 £65,000 £60,000
Median salary % change year-on-year +3.85% +8.33% +4.35%
10th Percentile £40,000 £37,500 £36,250
90th Percentile £100,000 £93,750 £90,000
England median annual salary £55,000 £50,000 £49,000
% change year-on-year +10.00% +2.04% +3.16%

JSON
Job Vacancy Trend in London

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

Job vacancy trend for JSON in London

JSON
Salary Trend in London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing JSON in London.

Salary trend for JSON in London

JSON
Salary Histogram in London

The salary distribution of IT jobs citing JSON in London over the 6 months to 23 August 2019.

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 23 August 2019. 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 -40 195 £70,000 +7.69% 48
South London +9 45 £47,500 -5.00% 10
West London +12 36 £55,000 +12.82% 36
East London +11 9 £49,971 -13.09% 10
North London -5 2 £55,000 +22.22% 3
JSON
England

For the 6 months to 23 August 2019, 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.

1 506 (51.42%) Agile Software Development
2 452 (45.93%) JavaScript
3 393 (39.94%) REST
4 378 (38.41%) XML
5 375 (38.11%) SQL
6 368 (37.40%) Java
7 319 (32.42%) HTML
8 296 (30.08%) Git (software)
9 293 (29.78%) .NET
10 286 (29.07%) CSS
11 284 (28.86%) Finance
12 281 (28.56%) C#
13 252 (25.61%) DevOps
14 227 (23.07%) Test Automation
14 227 (23.07%) Scrum
15 220 (22.36%) Azure
16 217 (22.05%) AWS
17 216 (21.95%) Web Services
18 213 (21.65%) SQL Server
19 198 (20.12%) TDD
20 189 (19.21%) Python
21 186 (18.90%) SOAP
22 182 (18.50%) AngularJS
23 178 (18.09%) Microservices
24 168 (17.07%) jQuery
25 161 (16.36%) Degree
26 160 (16.26%) Jenkins
27 159 (16.16%) PowerShell
28 156 (15.85%) Docker
29 155 (15.75%) RESTful

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 75 (7.62%) Confluence
2 68 (6.91%) IIS
3 60 (6.10%) Apache Spark
4 52 (5.28%) Apache
5 33 (3.35%) Elasticsearch
6 31 (3.15%) CMS
7 27 (2.74%) SharePoint
8 23 (2.34%) Apache Solr
8 23 (2.34%) Cloud Foundry
9 20 (2.03%) Tomcat
10 16 (1.63%) JBoss
11 14 (1.42%) BizTalk Server
11 14 (1.42%) OpenStack
11 14 (1.42%) WordPress
12 13 (1.32%) Camunda
12 13 (1.32%) Drupal
13 12 (1.22%) nginx
14 10 (1.02%) GeoServer
15 9 (0.91%) EPiServer
15 9 (0.91%) Mule
Applications
1 14 (1.42%) Microsoft Excel
1 14 (1.42%) Microsoft Office
2 9 (0.91%) MS Visio
3 6 (0.61%) Microsoft Project
4 4 (0.41%) Photoshop
5 3 (0.30%) Adobe Illustrator
5 3 (0.30%) Notepad++
6 1 (0.10%) Adobe After Effects
6 1 (0.10%) InDesign
6 1 (0.10%) Microsoft PowerPoint
Business Applications
1 19 (1.93%) Magento
2 17 (1.73%) Dynamics CRM
3 16 (1.63%) NetSuite
4 6 (0.61%) Shopify
5 3 (0.30%) JDE OneWorld
5 3 (0.30%) Payment Gateway
5 3 (0.30%) SAP Business One
6 1 (0.10%) Oracle BPM
Cloud Services
1 220 (22.36%) Azure
2 217 (22.05%) AWS
3 84 (8.54%) SaaS
4 78 (7.93%) IaaS
4 78 (7.93%) PaaS
5 76 (7.72%) Serverless
6 74 (7.52%) GitHub
7 39 (3.96%) OpenShift
8 37 (3.76%) GCP
9 33 (3.35%) AWS CloudFormation
10 32 (3.25%) AWS Lambda
11 24 (2.44%) npm
12 23 (2.34%) Power Platform
13 22 (2.24%) Office 365
14 21 (2.13%) Amazon EC2
14 21 (2.13%) Azure Functions
15 20 (2.03%) Amazon Kinesis
15 20 (2.03%) Slack
16 16 (1.63%) Cortana Intelligence Suite
16 16 (1.63%) Dynamics 365
Communications & Networking
1 56 (5.69%) HTTP
2 30 (3.05%) Internet
3 20 (2.03%) Firewall
3 20 (2.03%) WAN
4 9 (0.91%) TCP/IP
5 8 (0.81%) HTTPS
6 6 (0.61%) AMQP
7 3 (0.30%) BGP
7 3 (0.30%) MPLS
7 3 (0.30%) OSPF
7 3 (0.30%) VPN
8 2 (0.20%) LAN
8 2 (0.20%) SSL
8 2 (0.20%) Wireless
8 2 (0.20%) X.509
9 1 (0.10%) Bluetooth
9 1 (0.10%) DNS
9 1 (0.10%) Intranet
9 1 (0.10%) SNMP
9 1 (0.10%) Telnet
Database & Business Intelligence
1 213 (21.65%) SQL Server
2 107 (10.87%) MySQL
3 106 (10.77%) NoSQL
4 91 (9.25%) PostgreSQL
5 76 (7.72%) MongoDB
6 73 (7.42%) Relational Database
7 56 (5.69%) Hadoop
8 50 (5.08%) Big Data
9 47 (4.78%) Apache Cassandra
10 39 (3.96%) Data Warehouse
11 34 (3.46%) SQL Server Reporting Services
12 33 (3.35%) SQL Server Integration Services
13 31 (3.15%) Azure SQL Database
14 24 (2.44%) Amazon RDS
14 24 (2.44%) Redis
15 22 (2.24%) Data Lake
15 22 (2.24%) HBase
16 20 (2.03%) SQL Server 2012
17 19 (1.93%) RDBMS
18 17 (1.73%) Cosmos DB
Development Applications
1 296 (30.08%) Git (software)
2 160 (16.26%) Jenkins
3 136 (13.82%) JIRA
4 82 (8.33%) Selenium
5 77 (7.83%) Cucumber
6 75 (7.62%) JUnit
7 61 (6.20%) Maven
7 61 (6.20%) NUnit
8 58 (5.89%) Visual Studio
9 53 (5.39%) Bitbucket Server
10 49 (4.98%) Visual Studio Team System
11 48 (4.88%) Atlassian Bamboo
12 47 (4.78%) Subversion
12 47 (4.78%) TeamCity
13 44 (4.47%) SpecFlow
14 41 (4.17%) Team Foundation Server
15 40 (4.07%) Bitbucket
16 31 (3.15%) JMeter
17 27 (2.74%) webpack
18 22 (2.24%) Mockito
General
1 284 (28.86%) Finance
2 98 (9.96%) Banking
3 90 (9.15%) Retail
4 39 (3.96%) Games
5 31 (3.15%) Marketing
6 28 (2.85%) Front Office
7 27 (2.74%) Investment Banking
8 22 (2.24%) Publishing
9 17 (1.73%) Advertising
9 17 (1.73%) Telecoms
10 15 (1.52%) Law
11 13 (1.32%) Financial Institution
11 13 (1.32%) Legal
12 12 (1.22%) Public Sector
13 8 (0.81%) Electronics
13 8 (0.81%) Manufacturing
14 5 (0.51%) Retail Finance
15 4 (0.41%) Automotive
15 4 (0.41%) Billing
15 4 (0.41%) Pharmaceutical
Job Titles
1 564 (57.32%) Developer
2 136 (13.82%) Senior Developer
3 101 (10.26%) Java Developer
4 83 (8.43%) .NET Developer
5 75 (7.62%) Software Developer
6 73 (7.42%) C# Developer
7 66 (6.71%) Architect
8 51 (5.18%) JavaScript Developer
9 50 (5.08%) Software Engineer
10 42 (4.27%) Developer in Test
10 42 (4.27%) Full Stack Developer
11 39 (3.96%) Analyst
11 39 (3.96%) C# .NET Developer
12 37 (3.76%) Front End Developer (Client-Side Developer)
12 37 (3.76%) React Developer
13 34 (3.46%) Lead Developer
14 33 (3.35%) Applications Developer
14 33 (3.35%) DevOps Engineer
15 31 (3.15%) SQL Developer
16 29 (2.95%) Cloud Engineer
Libraries, Frameworks & Software Standards
1 393 (39.94%) REST
2 378 (38.41%) XML
3 319 (32.42%) HTML
4 293 (29.78%) .NET
5 286 (29.07%) CSS
6 216 (21.95%) Web Services
7 186 (18.90%) SOAP
8 182 (18.50%) AngularJS
9 168 (17.07%) jQuery
10 155 (15.75%) RESTful
11 144 (14.63%) Node.js
12 137 (13.92%) React
13 122 (12.40%) HTML5
14 109 (11.08%) ASP.NET
15 105 (10.67%) Spring
16 94 (9.55%) CSS3
17 93 (9.45%) ASP.NET Web API
18 82 (8.33%) Twitter Bootstrap
19 78 (7.93%) Redux
20 75 (7.62%) .NET Framework
Miscellaneous
1 92 (9.35%) User Experience
2 87 (8.84%) Analytical Skills
3 65 (6.61%) Mobile App
4 38 (3.86%) Greenfield Project
5 32 (3.25%) Data Structures
6 28 (2.85%) Algorithms
7 27 (2.74%) Data Centre
7 27 (2.74%) Foreign Exchange (FX)
7 27 (2.74%) Social Media
8 26 (2.64%) Management Information System
8 26 (2.64%) Self-Motivation
9 25 (2.54%) Fixed Income
9 25 (2.54%) Public Cloud
10 24 (2.44%) Enterprise Software
11 23 (2.34%) Reinsurance
12 19 (1.93%) PKI
13 17 (1.73%) Hybrid Cloud
14 13 (1.32%) Hedge funds
14 13 (1.32%) Online Banking
15 12 (1.22%) Enterprise Cloud
Operating Systems
1 147 (14.94%) Linux
2 99 (10.06%) Windows
3 52 (5.28%) Unix
4 45 (4.57%) Apple iOS
5 23 (2.34%) Android
6 14 (1.42%) Red Hat Enterprise Linux
6 14 (1.42%) Windows Server
7 9 (0.91%) CentOS
8 8 (0.81%) Fedora
9 5 (0.51%) Mac OS
10 3 (0.30%) Windows 10
11 2 (0.20%) Windows 7
12 1 (0.10%) Android TV
12 1 (0.10%) Windows 8
12 1 (0.10%) Windows Server 2008
Processes & Methodologies
1 506 (51.42%) Agile Software Development
2 252 (25.61%) DevOps
3 227 (23.07%) Scrum
3 227 (23.07%) Test Automation
4 198 (20.12%) TDD
5 178 (18.09%) Microservices
6 145 (14.74%) Continuous Integration
7 138 (14.02%) Analytics
8 136 (13.82%) OO
9 131 (13.31%) Computer Science
10 128 (13.01%) MVC
11 125 (12.70%) BDD
12 124 (12.60%) Problem-Solving
13 108 (10.98%) Software Engineering
14 100 (10.16%) Mentoring
15 94 (9.55%) Open Source
15 94 (9.55%) SDLC
16 85 (8.64%) Web Development
17 82 (8.33%) Front End Development
18 79 (8.03%) E-Commerce
Programming Languages
1 452 (45.93%) JavaScript
2 375 (38.11%) SQL
3 368 (37.40%) Java
4 281 (28.56%) C#
5 189 (19.21%) Python
6 159 (16.16%) PowerShell
7 89 (9.04%) PHP
8 63 (6.40%) Bash Shell
9 53 (5.39%) Ruby
10 51 (5.18%) Java 8
10 51 (5.18%) Scala
11 40 (4.07%) ES6
12 31 (3.15%) Shell Script
13 27 (2.74%) T-SQL
13 27 (2.74%) VB.NET
14 23 (2.34%) TypeScript
15 19 (1.93%) Go
16 18 (1.83%) VBA
17 16 (1.63%) PL/SQL
18 15 (1.52%) C++
Qualifications
1 161 (16.36%) Degree
2 49 (4.98%) Computer Science Degree
3 26 (2.64%) Security Cleared
4 10 (1.02%) SC Cleared
5 6 (0.61%) Master's Degree
6 5 (0.51%) Microsoft Certification
7 4 (0.41%) Cisco Certification
8 3 (0.30%) CCMSE
8 3 (0.30%) CCNP
8 3 (0.30%) MCP
8 3 (0.30%) Numerate Degree
9 2 (0.20%) DV Cleared
9 2 (0.20%) Postgraduate
10 1 (0.10%) APMP
10 1 (0.10%) CCNA
10 1 (0.10%) CISSP
10 1 (0.10%) GIAC
10 1 (0.10%) MCSE
10 1 (0.10%) PhD
10 1 (0.10%) SSCP
Quality Assurance & Compliance
1 80 (8.13%) QA
2 24 (2.44%) Data Quality
3 10 (1.02%) GDPR
4 6 (0.61%) HIPAA
5 3 (0.30%) EMIR
5 3 (0.30%) MiFID
6 2 (0.20%) SLA
7 1 (0.10%) ISO/IEC 27001
7 1 (0.10%) PSD2
7 1 (0.10%) TickIT
7 1 (0.10%) WAI
7 1 (0.10%) WCAG
System Software
1 156 (15.85%) Docker
2 70 (7.11%) Active Directory
3 6 (0.61%) VMware Infrastructure
4 5 (0.51%) Hyper-V
5 4 (0.41%) Apache ZooKeeper
6 2 (0.20%) Citrix Hypervisor
6 2 (0.20%) Shibboleth
6 2 (0.20%) Virtual Machines
7 1 (0.10%) HDFS
7 1 (0.10%) LXC
7 1 (0.10%) OpenAM
7 1 (0.10%) Varnish
7 1 (0.10%) Virtual Desktop
7 1 (0.10%) XenApp
7 1 (0.10%) XenDesktop
7 1 (0.10%) zsh
Systems Management
1 122 (12.40%) Kubernetes
2 57 (5.79%) Ansible
3 43 (4.37%) Terraform
4 30 (3.05%) Puppet
5 18 (1.83%) Nagios
6 17 (1.73%) ZABBIX
7 16 (1.63%) HP SiteScope
7 16 (1.63%) Packer
8 15 (1.52%) Opscode Chef
9 11 (1.12%) Marathon
9 11 (1.12%) Mesos
10 9 (0.91%) Hadoop YARN
11 7 (0.71%) Grafana
11 7 (0.71%) Icinga
12 5 (0.51%) Single Sign-On
13 4 (0.41%) Oozie
14 3 (0.30%) CloudHub
14 3 (0.30%) Control-M
15 2 (0.20%) HP Quality Center
15 2 (0.20%) Microsoft Intune
Vendors
1 139 (14.13%) Microsoft
2 101 (10.26%) Oracle
3 46 (4.67%) Splunk
4 42 (4.27%) Google
5 32 (3.25%) MuleSoft
6 29 (2.95%) Salesforce.com
7 24 (2.44%) Atlassian
8 17 (1.73%) Cisco
8 17 (1.73%) Perforce
8 17 (1.73%) SAP
9 16 (1.63%) SaltStack
10 14 (1.42%) Apple
11 13 (1.32%) Riverbed
11 13 (1.32%) Sitecore
11 13 (1.32%) Tableau
11 13 (1.32%) TIBCO
11 13 (1.32%) WorldPay
12 12 (1.22%) Bloomberg
12 12 (1.22%) Hortonworks
12 12 (1.22%) Red Hat