Period
to 12 July 2020

The following table provides summary statistics for contract job vacancies advertised in Central London with a requirement for JSON skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JSON over the 6 months to 12 July 2020 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

JSON
London > Central London
6 months to
12 Jul 2020
Same period 2019 Same period 2018
Rank 129 102 114
Rank change year-on-year -27 +12 -6
Contract jobs citing JSON 33 219 223
As % of all contract jobs advertised in Central London 1.00% 2.50% 2.38%
As % of the Libraries, Frameworks & Software Standards category 2.97% 6.48% 5.99%
Number of daily rates quoted 22 170 180
Median daily rate £515 £525 £500
Median daily rate % change year-on-year -1.90% +5.00% +5.26%
10th Percentile £416 £418 £375
90th Percentile £650 £650 £614
London median daily rate £500 £507 £488
% change year-on-year -1.33% +3.95% +2.63%
Number of hourly rates quoted 0 1 0
Median hourly rate - £21.50 -
London median hourly rate £51.00 £75.00 -
% change year-on-year -32.00% - -

JSON is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all contract 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
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 1,112 3,382 3,720
As % of all contract IT jobs advertised in Central London 33.84% 38.67% 39.75%
Number of daily rates quoted 801 2,725 3,016
Median daily rate £525 £525 £513
Median daily rate % change year-on-year - +2.44% +2.55%
10th Percentile £375 £406 £363
90th Percentile £688 £675 £663
London median daily rate £525 £525 £510
% change year-on-year - +2.94% +4.62%
Number of hourly rates quoted 14 12 17
Median hourly rate £35.00 £46.85 £22.00
Median hourly rate % change year-on-year -25.29% +112.94% -9.92%
10th Percentile £33.43 £23.28 £21.00
90th Percentile £54.58 £69.08 £64.50
Median hourly rate £35.00 £45.00 £43.50
% change year-on-year -22.22% +3.45% +8.75%

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
Contractor Daily Rate Trend in Central London

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

Daily rate trend for JSON in Central London

JSON
Daily Rate Histogram in Central London

Daily rate distribution for jobs citing JSON in Central London over the 6 months to 12 July 2020.

Daily rate histogram for JSON in Central London

JSON
Contractor Hourly Rate Trend in Central London

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

Hourly rate trend for JSON in Central London

JSON
Contract Job Locations in Central London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JSON within the Central London region over the 6 months to 12 July 2020. 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London -9 23 £490 -6.67% 7
Southwark +31 3 £450 -14.29%
City of Westminster +19 2 £675 +17.39%
West End of London +11 2 £600 - 1
JSON
London

For the 6 months to 12 July 2020, IT contractor 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 contract job ads across the Central London region with a requirement for JSON.

1 21 (63.64%) Agile Software Development
1 21 (63.64%) REST
2 15 (45.45%) Java
3 14 (42.42%) XML
4 10 (30.30%) Web Services
4 10 (30.30%) SQL
4 10 (30.30%) Git (software)
4 10 (30.30%) DevOps
5 9 (27.27%) JavaScript
6 8 (24.24%) SOAP
6 8 (24.24%) Linux
6 8 (24.24%) JIRA
7 7 (21.21%) CSS
7 7 (21.21%) HTML
7 7 (21.21%) User Experience
7 7 (21.21%) Microservices
7 7 (21.21%) Jenkins
7 7 (21.21%) Azure
7 7 (21.21%) AWS
7 7 (21.21%) Confluence
7 7 (21.21%) Node.js
8 6 (18.18%) SC Cleared
8 6 (18.18%) Security Cleared
8 6 (18.18%) Kubernetes
8 6 (18.18%) Python
9 5 (15.15%) Shell Script
9 5 (15.15%) Microsoft
9 5 (15.15%) C#
9 5 (15.15%) Continuous Integration
9 5 (15.15%) Kanban

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 (21.21%) Confluence
2 3 (9.09%) Apache
2 3 (9.09%) Apache Spark
2 3 (9.09%) WebLogic
3 2 (6.06%) CMS
3 2 (6.06%) MQSeries
3 2 (6.06%) Tomcat
4 1 (3.03%) Drupal
4 1 (3.03%) JBoss
4 1 (3.03%) Oracle SOA Suite
4 1 (3.03%) Red Hat Fuse
4 1 (3.03%) Skype for Business
4 1 (3.03%) WebSphere
Cloud Services
1 7 (21.21%) AWS
1 7 (21.21%) Azure
2 4 (12.12%) GitHub
3 3 (9.09%) AWS Lambda
3 3 (9.09%) Serverless
4 2 (6.06%) AWS CloudFormation
4 2 (6.06%) Azure Functions
4 2 (6.06%) GCP
4 2 (6.06%) OpenShift
4 2 (6.06%) PaaS
4 2 (6.06%) Power Platform
4 2 (6.06%) SaaS
4 2 (6.06%) Stackdriver
5 1 (3.03%) Apigee
5 1 (3.03%) Boomi
5 1 (3.03%) IaaS
5 1 (3.03%) npm
5 1 (3.03%) Office 365
5 1 (3.03%) Slack
Communications & Networking
1 4 (12.12%) HTTP
2 3 (9.09%) DNS
3 2 (6.06%) OpenVPN
4 1 (3.03%) Broadband
4 1 (3.03%) PBX
4 1 (3.03%) Skype
4 1 (3.03%) SSL
4 1 (3.03%) VPN
Database & Business Intelligence
1 5 (15.15%) Big Data
1 5 (15.15%) NoSQL
2 4 (12.12%) PostgreSQL
3 3 (9.09%) SQL Server
4 2 (6.06%) Power BI
4 2 (6.06%) Sqoop
5 1 (3.03%) Amazon DynamoDB
5 1 (3.03%) Apache Cassandra
5 1 (3.03%) HBase
5 1 (3.03%) MongoDB
5 1 (3.03%) MySQL
5 1 (3.03%) Oracle Database
5 1 (3.03%) Oracle Database 11g
5 1 (3.03%) Parquet
5 1 (3.03%) Relational Database
5 1 (3.03%) SQL Server 2014
Development Applications
1 10 (30.30%) Git (software)
2 8 (24.24%) JIRA
3 7 (21.21%) Jenkins
4 3 (9.09%) Android Studio
5 2 (6.06%) Maven
5 2 (6.06%) Postman
5 2 (6.06%) Visual Studio
6 1 (3.03%) Babel
6 1 (3.03%) Bitbucket
6 1 (3.03%) CocoaPods
6 1 (3.03%) Eclipse
6 1 (3.03%) git-flow
6 1 (3.03%) Gradle
6 1 (3.03%) gulp
6 1 (3.03%) JMeter
6 1 (3.03%) Mockito
6 1 (3.03%) SoapUI
6 1 (3.03%) Team Foundation Server
6 1 (3.03%) webpack
6 1 (3.03%) Xcode
General
1 3 (9.09%) Banking
1 3 (9.09%) Finance
2 2 (6.06%) Law
3 1 (3.03%) Investment Banking
3 1 (3.03%) Manufacturing
3 1 (3.03%) Retail
Job Titles
1 16 (48.48%) Developer
2 5 (15.15%) Architect
3 3 (9.09%) Android Developer
3 3 (9.09%) Java Developer
3 3 (9.09%) Node.js Developer
3 3 (9.09%) Technical Architect
4 2 (6.06%) Big Data Developer
4 2 (6.06%) Big Data Engineer
4 2 (6.06%) C# Developer
4 2 (6.06%) Cloud Architect
4 2 (6.06%) Data Engineer
4 2 (6.06%) Front End Developer (Client-Side Developer)
4 2 (6.06%) UI Developer
5 1 (3.03%) Analyst
5 1 (3.03%) Cloud Developer
5 1 (3.03%) Cloud Software Engineer
5 1 (3.03%) Drupal Developer
5 1 (3.03%) iOS Developer
5 1 (3.03%) Platform Architect
5 1 (3.03%) Technical Analyst
Libraries, Frameworks & Software Standards
1 21 (63.64%) REST
2 14 (42.42%) XML
3 10 (30.30%) Web Services
4 8 (24.24%) SOAP
5 7 (21.21%) CSS
5 7 (21.21%) HTML
5 7 (21.21%) Node.js
6 4 (12.12%) .NET
7 3 (9.09%) .NET Framework
7 3 (9.09%) Android SDK
7 3 (9.09%) ASP.NET Web API
7 3 (9.09%) HTML5
7 3 (9.09%) jQuery
7 3 (9.09%) Kafka
7 3 (9.09%) React
8 2 (6.06%) Akka
8 2 (6.06%) Apache Camel
8 2 (6.06%) JSON Schema
8 2 (6.06%) Razor View Engine
8 2 (6.06%) Spring Boot
Miscellaneous
1 7 (21.21%) User Experience
2 5 (15.15%) Mobile App
3 3 (9.09%) Cloud Native
3 3 (9.09%) Management Information System
3 3 (9.09%) Video on Demand
4 2 (6.06%) Greenfield Project
4 2 (6.06%) Life Science
4 2 (6.06%) Public Cloud
4 2 (6.06%) Semantic Web
5 1 (3.03%) Analytical Skills
5 1 (3.03%) Credit Risk
5 1 (3.03%) Data Structures
5 1 (3.03%) Enterprise Software
5 1 (3.03%) Industry 4.0
5 1 (3.03%) Market Risk
5 1 (3.03%) Mobile Payment
5 1 (3.03%) Private Cloud
5 1 (3.03%) Video Conferencing
5 1 (3.03%) Video\Live Streaming
5 1 (3.03%) Virtual Team
Operating Systems
1 8 (24.24%) Linux
2 3 (9.09%) Android
2 3 (9.09%) Windows
3 2 (6.06%) Unix
3 2 (6.06%) Windows Server
4 1 (3.03%) Apple iOS
4 1 (3.03%) Red Hat Enterprise Linux
Processes & Methodologies
1 21 (63.64%) Agile Software Development
2 10 (30.30%) DevOps
3 7 (21.21%) Microservices
4 5 (15.15%) Continuous Integration
4 5 (15.15%) Kanban
5 4 (12.12%) BDD
5 4 (12.12%) Front End Development
5 4 (12.12%) SDLC
5 4 (12.12%) SOA
5 4 (12.12%) TDD
5 4 (12.12%) Waterfall
5 4 (12.12%) Web Development
6 3 (9.09%) Android Development
6 3 (9.09%) Creative Thinking
6 3 (9.09%) MVC
6 3 (9.09%) Open Source
6 3 (9.09%) Pair Programming
6 3 (9.09%) Problem-Solving
6 3 (9.09%) Software Engineering
7 2 (6.06%) Test Automation
Programming Languages
1 15 (45.45%) Java
2 10 (30.30%) SQL
3 9 (27.27%) JavaScript
4 6 (18.18%) Python
5 5 (15.15%) C#
5 5 (15.15%) Groovy
5 5 (15.15%) Shell Script
6 4 (12.12%) T-SQL
7 3 (9.09%) Bash Shell
7 3 (9.09%) PL/SQL
7 3 (9.09%) PowerShell
7 3 (9.09%) Ruby
8 2 (6.06%) Go
8 2 (6.06%) Java 8
8 2 (6.06%) Perl
8 2 (6.06%) Scala
9 1 (3.03%) Apple Swift
9 1 (3.03%) PHP
9 1 (3.03%) XPath
9 1 (3.03%) XQuery
Qualifications
1 6 (18.18%) SC Cleared
1 6 (18.18%) Security Cleared
2 2 (6.06%) Degree
3 1 (3.03%) Cisco Certification
3 1 (3.03%) Computer Science Degree
3 1 (3.03%) CTC Cleared
Quality Assurance & Compliance
1 3 (9.09%) QA
System Software
1 2 (6.06%) Docker
Systems Management
1 6 (18.18%) Kubernetes
2 4 (12.12%) Terraform
3 2 (6.06%) Ansible
3 2 (6.06%) Hadoop YARN
3 2 (6.06%) Oozie
4 1 (3.03%) Istio
Vendors
1 5 (15.15%) Microsoft
2 4 (12.12%) Google
3 3 (9.09%) Oracle
4 2 (6.06%) Atlassian
4 2 (6.06%) MuleSoft
4 2 (6.06%) Red Hat
4 2 (6.06%) TOWER Software
5 1 (3.03%) AppDynamics
5 1 (3.03%) Avaya
5 1 (3.03%) Axway
5 1 (3.03%) Cisco
5 1 (3.03%) Dell
5 1 (3.03%) Informatica
5 1 (3.03%) MapR
5 1 (3.03%) Polycom
5 1 (3.03%) ServiceNow
5 1 (3.03%) Splunk
5 1 (3.03%) Sybase
5 1 (3.03%) Workday