Period
to 27 September 2020

The following table provides summary statistics for contract job vacancies advertised in 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 27 September 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
England > London
6 months to
27 Sep 2020
Same period 2019 Same period 2018
Rank 166 120 123
Rank change year-on-year -46 +3 -14
Contract jobs citing JSON 205 892 1,083
As % of all contract jobs advertised in London 1.55% 2.33% 2.36%
As % of the Libraries, Frameworks & Software Standards category 4.11% 6.40% 5.99%
Number of daily rates quoted 143 569 832
Median daily rate £500 £525 £500
Median daily rate % change year-on-year -4.76% +5.00% +5.26%
10th Percentile £325 £363 £375
90th Percentile £635 £706 £638
England median daily rate £475 £500 £475
% change year-on-year -5.00% +5.26% +5.56%
Number of hourly rates quoted 4 10 0
Median hourly rate £45.50 £75.00 -
Median hourly rate % change year-on-year -39.33% - -
England median hourly rate £37.50 £55.00 £53.79
% change year-on-year -31.82% +2.26% +26.55%

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

All Software Libraries and Frameworks
London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 4,984 13,947 18,067
As % of all contract IT jobs advertised in London 37.78% 36.37% 39.42%
Number of daily rates quoted 3,486 10,406 13,659
Median daily rate £525 £525 £525
10th Percentile £363 £375 £370
90th Percentile £713 £688 £675
England median daily rate £500 £500 £475
% change year-on-year - +5.26% +5.56%
Number of hourly rates quoted 41 71 90
Median hourly rate £35.00 £47.83 £43.83
Median hourly rate % change year-on-year -26.82% +9.12% +32.83%
10th Percentile £22.50 £21.25 £20.83
90th Percentile £47.75 £68.75 £72.50
Median hourly rate £35.00 £45.00 £42.13
% change year-on-year -22.22% +6.82% +5.31%

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
Contractor Daily Rate Trend in London

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

Daily rate trend for JSON in London

JSON
Daily Rate Histogram in London

Daily rate distribution for jobs citing JSON in London over the 6 months to 27 September 2020.

Daily rate histogram for JSON in London

JSON
Contractor Hourly Rate Trend in London

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

Hourly rate trend for JSON in London

JSON
Contract Job Locations in 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 London region over the 6 months to 27 September 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
Central London +13 21 £538 +7.50% 17
South London +13 9 £550 +7.32% 5
West London +37 8 £431 +1.47% 22
East London +25 3 £475 -11.63% 6
North London +18 3 - -
JSON
England

For the 6 months to 27 September 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 London region with a requirement for JSON.

1 103 (50.24%) XML
1 103 (50.24%) REST
2 96 (46.83%) Agile Software Development
3 83 (40.49%) Java
4 71 (34.63%) JavaScript
5 64 (31.22%) Git (software)
6 62 (30.24%) Web Services
7 61 (29.76%) SQL
8 56 (27.32%) HTML
9 52 (25.37%) Jenkins
10 51 (24.88%) Security Cleared
11 48 (23.41%) SC Cleared
11 48 (23.41%) SOAP
12 47 (22.93%) Azure
13 46 (22.44%) Microservices
14 44 (21.46%) JIRA
15 43 (20.98%) CSS
16 42 (20.49%) Python
17 40 (19.51%) Scrum
18 36 (17.56%) DevOps
19 35 (17.07%) AWS
19 35 (17.07%) Test Automation
20 34 (16.59%) Oracle
21 32 (15.61%) .NET
22 31 (15.12%) C#
22 31 (15.12%) Microsoft
22 31 (15.12%) Confluence
23 30 (14.63%) Linux
23 30 (14.63%) Finance
24 29 (14.15%) TDD

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 31 (15.12%) Confluence
2 24 (11.71%) Red Hat Fuse
3 21 (10.24%) JBoss
3 21 (10.24%) Tomcat
4 19 (9.27%) Apache
5 16 (7.80%) WebLogic
6 9 (4.39%) Oracle SOA Suite
7 8 (3.90%) MQSeries
7 8 (3.90%) WebSphere
8 7 (3.41%) Mule
8 7 (3.41%) SharePoint
9 6 (2.93%) Apache ServiceMix
9 6 (2.93%) BizTalk Server
10 5 (2.44%) Elasticsearch
10 5 (2.44%) Jetty
10 5 (2.44%) Oracle Self-Service HR
11 4 (1.95%) nginx
12 3 (1.46%) Apache Spark
12 3 (1.46%) Oracle HTTP Server
13 2 (0.98%) Cloud Foundry
Applications
1 4 (1.95%) Chatbot
1 4 (1.95%) Microsoft Excel
2 1 (0.49%) Adobe XD
2 1 (0.49%) Figma
2 1 (0.49%) MS Visio
2 1 (0.49%) Photoshop
Business Applications
1 7 (3.41%) Dynamics CRM
1 7 (3.41%) Oracle ERP
1 7 (3.41%) Sparx Enterprise Architect
2 4 (1.95%) Distributed Ledger
2 4 (1.95%) Dynamics AX
2 4 (1.95%) Dynamics NAV
3 2 (0.98%) Maximo
4 1 (0.49%) BusinessWorks
4 1 (0.49%) SAP ERP
Cloud Services
1 47 (22.93%) Azure
2 35 (17.07%) AWS
3 19 (9.27%) SaaS
4 17 (8.29%) PaaS
5 14 (6.83%) Power Platform
6 12 (5.85%) GitHub
7 10 (4.88%) Slack
8 9 (4.39%) Serverless
9 8 (3.90%) Apigee
9 8 (3.90%) GCP
9 8 (3.90%) IaaS
9 8 (3.90%) Office 365
10 7 (3.41%) Amazon S3
10 7 (3.41%) Logic Apps
11 6 (2.93%) Boomi
12 5 (2.44%) Azure Active Directory
12 5 (2.44%) Dynamics 365
12 5 (2.44%) Power Automate
12 5 (2.44%) PowerApps
13 4 (1.95%) AWS Lambda
Communications & Networking
1 23 (11.22%) HTTP
2 6 (2.93%) TCP/IP
3 5 (2.44%) SSH
4 4 (1.95%) DNS
5 3 (1.46%) F5 BIG-IP GTM
5 3 (1.46%) Firewall
5 3 (1.46%) Internet
5 3 (1.46%) RTMP
6 2 (0.98%) DVB
6 2 (0.98%) HTTPS
6 2 (0.98%) LAN
6 2 (0.98%) Network Security
6 2 (0.98%) Software-Defined Networking
6 2 (0.98%) SSL
6 2 (0.98%) WAN
7 1 (0.49%) 3GPP
7 1 (0.49%) Cisco IOS
7 1 (0.49%) Reverse Proxy
7 1 (0.49%) SAN
7 1 (0.49%) SGSN
Database & Business Intelligence
1 27 (13.17%) PostgreSQL
1 27 (13.17%) SQL Server
2 18 (8.78%) MySQL
3 16 (7.80%) MongoDB
4 13 (6.34%) NoSQL
5 12 (5.85%) Relational Database
6 11 (5.37%) Data Warehouse
7 10 (4.88%) Power BI
8 7 (3.41%) Oracle Database
9 5 (2.44%) Azure SQL Database
9 5 (2.44%) Big Data
9 5 (2.44%) Hadoop
9 5 (2.44%) Oracle ODI
9 5 (2.44%) RDBMS
9 5 (2.44%) SQL Server 2008
9 5 (2.44%) SQL Server 2014
9 5 (2.44%) SQL Server 2017
10 4 (1.95%) Amazon Redshift
10 4 (1.95%) OLTP
11 3 (1.46%) Data Lake
Development Applications
1 64 (31.22%) Git (software)
2 52 (25.37%) Jenkins
3 44 (21.46%) JIRA
4 15 (7.32%) JUnit
5 14 (6.83%) Maven
6 12 (5.85%) Postman
7 10 (4.88%) Cucumber
7 10 (4.88%) Eclipse
7 10 (4.88%) Sonatype Nexus
8 9 (4.39%) CocoaPods
8 9 (4.39%) Selenium
8 9 (4.39%) Xcode
9 8 (3.90%) Visual Studio Team System
10 7 (3.41%) ClearCase
10 7 (3.41%) Mercurial
10 7 (3.41%) Mockito
10 7 (3.41%) SoapUI
11 6 (2.93%) Ant
11 6 (2.93%) Gradle
11 6 (2.93%) IntelliJ
General
1 30 (14.63%) Finance
2 25 (12.20%) Banking
3 19 (9.27%) Public Sector
4 7 (3.41%) Retail
5 5 (2.44%) Electronics
5 5 (2.44%) Manufacturing
6 4 (1.95%) Back Office
6 4 (1.95%) Financial Institution
6 4 (1.95%) Front Office
6 4 (1.95%) Marketing
6 4 (1.95%) Pharmaceutical
6 4 (1.95%) Telecoms
7 3 (1.46%) Investment Banking
7 3 (1.46%) Police
7 3 (1.46%) Retail Banking
8 2 (0.98%) Advertising
9 1 (0.49%) French Language
9 1 (0.49%) Games
9 1 (0.49%) Law
Job Titles
1 105 (51.22%) Developer
2 41 (20.00%) Architect
3 19 (9.27%) Java Developer
4 14 (6.83%) Solutions Architect
5 12 (5.85%) Consultant
6 11 (5.37%) Integration Architect
7 10 (4.88%) iOS Developer
8 9 (4.39%) ServiceNow Developer
9 8 (3.90%) Azure Engineer
9 8 (3.90%) DevOps Engineer
9 8 (3.90%) Front End Developer (Client-Side Developer)
9 8 (3.90%) JavaScript Developer
9 8 (3.90%) React Developer
10 7 (3.41%) AWS Developer
10 7 (3.41%) Data Engineer
10 7 (3.41%) Senior Developer
11 6 (2.93%) Android Developer
11 6 (2.93%) Software Engineer
12 5 (2.44%) Analyst
12 5 (2.44%) Cloud Architect
Libraries, Frameworks & Software Standards
1 103 (50.24%) REST
1 103 (50.24%) XML
2 62 (30.24%) Web Services
3 56 (27.32%) HTML
4 48 (23.41%) SOAP
5 43 (20.98%) CSS
6 32 (15.61%) .NET
7 28 (13.66%) Node.js
7 28 (13.66%) RESTful
8 22 (10.73%) jQuery
8 22 (10.73%) Spring
9 21 (10.24%) XSLT
10 18 (8.78%) Apache Camel
10 18 (8.78%) HTML5
10 18 (8.78%) Spring Boot
11 16 (7.80%) Oracle Fusion
11 16 (7.80%) React
12 15 (7.32%) AngularJS
12 15 (7.32%) Middleware
13 14 (6.83%) XSD
Miscellaneous
1 25 (12.20%) Mobile App
1 25 (12.20%) User Experience
2 7 (3.41%) Analytical Skills
2 7 (3.41%) CMDB
3 6 (2.93%) Derivative
4 5 (2.44%) Private Cloud
4 5 (2.44%) Video on Demand
5 4 (1.95%) Credit Risk
5 4 (1.95%) Enterprise Software
5 4 (1.95%) Foreign Exchange (FX)
5 4 (1.95%) Self-Motivation
6 3 (1.46%) Client/Server
6 3 (1.46%) Cloud Native
6 3 (1.46%) Management Information System
6 3 (1.46%) W3C
7 2 (0.98%) Data Centre
7 2 (0.98%) Data Structures
7 2 (0.98%) STB
7 2 (0.98%) Video\Live Streaming
7 2 (0.98%) Virtual Team
Operating Systems
1 30 (14.63%) Linux
2 20 (9.76%) Android
3 19 (9.27%) Apple iOS
3 19 (9.27%) Windows
4 13 (6.34%) Unix
5 9 (4.39%) Red Hat Enterprise Linux
6 7 (3.41%) Mac OS X
7 5 (2.44%) CentOS
7 5 (2.44%) Debian
7 5 (2.44%) Ubuntu
8 1 (0.49%) Mac OS
8 1 (0.49%) OpenVMS
8 1 (0.49%) Windows 10
8 1 (0.49%) Windows Server
8 1 (0.49%) Windows Server 2012
Processes & Methodologies
1 96 (46.83%) Agile Software Development
2 46 (22.44%) Microservices
3 40 (19.51%) Scrum
4 36 (17.56%) DevOps
5 35 (17.07%) Test Automation
6 29 (14.15%) Kanban
6 29 (14.15%) TDD
7 26 (12.68%) SOA
8 25 (12.20%) Continuous Delivery
9 23 (11.22%) Business Intelligence
9 23 (11.22%) Continuous Integration
10 22 (10.73%) Waterfall
11 18 (8.78%) Analytics
11 18 (8.78%) Unit Testing
12 16 (7.80%) MVC
13 15 (7.32%) Data Modelling
14 14 (6.83%) Software Engineering
15 13 (6.34%) BDD
15 13 (6.34%) ERP
15 13 (6.34%) Workflow
Programming Languages
1 83 (40.49%) Java
2 71 (34.63%) JavaScript
3 61 (29.76%) SQL
4 42 (20.49%) Python
5 31 (15.12%) C#
6 21 (10.24%) PL/SQL
7 18 (8.78%) T-SQL
8 12 (5.85%) Apple Swift
8 12 (5.85%) PowerShell
9 11 (5.37%) C++
10 10 (4.88%) Scala
10 10 (4.88%) VBA
11 9 (4.39%) Bash Shell
11 9 (4.39%) Perl
12 8 (3.90%) C
13 7 (3.41%) Groovy
13 7 (3.41%) PHP
14 6 (2.93%) Ruby
14 6 (2.93%) Shell Script
15 5 (2.44%) Clojure
Qualifications
1 51 (24.88%) Security Cleared
2 48 (23.41%) SC Cleared
3 13 (6.34%) Degree
4 4 (1.95%) AWS Certification
4 4 (1.95%) DV Cleared
5 3 (1.46%) TOGAF Certification
6 1 (0.49%) CCDP
6 1 (0.49%) CCIE
6 1 (0.49%) CCNP
6 1 (0.49%) Cisco Certification
Quality Assurance & Compliance
1 16 (7.80%) QA
2 1 (0.49%) Data Quality
2 1 (0.49%) HIPAA
2 1 (0.49%) ISO 20022
2 1 (0.49%) OASIS TOSCA
2 1 (0.49%) PSD2
2 1 (0.49%) WCAG
System Software
1 22 (10.73%) Docker
2 3 (1.46%) VMware Infrastructure
3 2 (0.98%) Active Directory
4 1 (0.49%) KVM
4 1 (0.49%) LXC
4 1 (0.49%) Virtual Machines
4 1 (0.49%) VMware ESXi
4 1 (0.49%) VMware NSX
4 1 (0.49%) vSphere
Systems Management
1 16 (7.80%) Kubernetes
2 6 (2.93%) Puppet
3 5 (2.44%) Ansible
3 5 (2.44%) Grafana
3 5 (2.44%) Salt
3 5 (2.44%) Terraform
4 3 (1.46%) Forum Sentry
4 3 (1.46%) Prometheus
5 2 (0.98%) Kibana
5 2 (0.98%) Rancher
6 1 (0.49%) Cloudify
6 1 (0.49%) Control-M
6 1 (0.49%) Docker Swarm
6 1 (0.49%) FortiGate
6 1 (0.49%) Istio
6 1 (0.49%) Juju
Vendors
1 34 (16.59%) Oracle
2 31 (15.12%) Microsoft
3 19 (9.27%) MuleSoft
4 18 (8.78%) Red Hat
5 16 (7.80%) Axway
6 10 (4.88%) Google
6 10 (4.88%) ServiceNow
7 9 (4.39%) Splunk
7 9 (4.39%) Sybase
7 9 (4.39%) Tableau
8 8 (3.90%) AppDynamics
8 8 (3.90%) SAP
9 7 (3.41%) Databricks
9 7 (3.41%) IBM
9 7 (3.41%) Salesforce.com
9 7 (3.41%) Sparx
9 7 (3.41%) Talend
9 7 (3.41%) TIBCO
10 6 (2.93%) Atlassian
10 6 (2.93%) Dell