Period
to

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 12 August 2022 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
12 Aug 2022
Same period 2021 Same period 2020
Rank 186 149 177
Rank change year-on-year -37 +28 -66
Contract jobs citing JSON 607 581 232
As % of all contract jobs advertised in London 1.52% 1.87% 1.54%
As % of the Libraries, Frameworks & Software Standards category 4.87% 5.31% 4.12%
Number of daily rates quoted 427 407 135
10th Percentile £420 £400 £363
25th Percentile £475 £463 £425
Median daily rate (50th Percentile) £585 £513 £500
Median % change year-on-year +14.15% +2.50% -4.76%
75th Percentile £725 £625 £575
90th Percentile £825 £725 £616
England median daily rate £550 £500 £500
% change year-on-year +10.00% - -
Number of hourly rates quoted 0 5 1
10th Percentile - £32.70 -
25th Percentile - £42.75 £48.00
Median hourly rate - £65.00 £51.00
Median % change year-on-year - +27.45% -55.65%
75th Percentile - £68.00 £54.00
90th Percentile - £75.20 -
England median hourly rate £55.00 £59.00 £56.50
% change year-on-year -6.78% +4.42% -5.83%

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 12,464 10,943 5,634
As % of all contract IT jobs advertised in London 31.14% 35.21% 37.50%
Number of daily rates quoted 9,464 8,140 4,148
10th Percentile £425 £400 £370
25th Percentile £505 £463 £440
Median daily rate (50th Percentile) £600 £550 £525
Median % change year-on-year +9.09% +4.76% -
75th Percentile £725 £650 £625
90th Percentile £800 £725 £713
England median daily rate £575 £525 £500
% change year-on-year +9.52% +5.00% -
Number of hourly rates quoted 41 38 32
10th Percentile £35.00 £20.09 £22.60
25th Percentile £41.25 £35.06 £32.38
Median hourly rate £57.50 £49.33 £46.75
Median % change year-on-year +16.57% +5.51% -6.50%
75th Percentile £69.38 £67.06 £63.00
90th Percentile £77.00 £70.30 £69.10
England median hourly rate £59.50 £48.27 £45.00
% change year-on-year +23.28% +7.26% -4.43%

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 12 August 2022.

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 12 August 2022. 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
Jobs
Central London -11 56 £555 +7.40% 32
South London -4 11 £460 -8.00% 3
West London +3 7 £475 -5.00% 17
North London - 1 £550 - 1
JSON
England

For the 6 months to 12 August 2022, 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.

1 295 (48.60%) XML
2 263 (43.33%) REST
3 251 (41.35%) Java
4 246 (40.53%) Agile
5 234 (38.55%) SQL
6 205 (33.77%) JavaScript
7 202 (33.28%) DevOps
8 189 (31.14%) Finance
9 154 (25.37%) Git (software)
10 152 (25.04%) Jenkins
11 145 (23.89%) HTML
12 144 (23.72%) Azure
12 144 (23.72%) Social Skills
13 137 (22.57%) AWS
14 136 (22.41%) CI/CD
15 133 (21.91%) Test Automation
15 133 (21.91%) SOAP
16 131 (21.58%) Web Services
17 129 (21.25%) Spring
18 125 (20.59%) Banking
18 125 (20.59%) Microservices
19 114 (18.78%) CSS
20 113 (18.62%) Python
21 112 (18.45%) Oracle
22 110 (18.12%) JIRA
23 105 (17.30%) React
24 103 (16.97%) Scrum
25 100 (16.47%) Relational Database
26 94 (15.49%) Spring Boot
26 94 (15.49%) .NET

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 60 (9.88%) Confluence
2 24 (3.95%) WebSphere
3 21 (3.46%) Apache
3 21 (3.46%) Tomcat
4 19 (3.13%) Cloud Foundry
5 16 (2.64%) Oracle SOA Suite
6 14 (2.31%) IIS
7 12 (1.98%) CMS
8 11 (1.81%) Apache Spark
9 9 (1.48%) Apache Solr
10 8 (1.32%) Apache Airflow
10 8 (1.32%) Mule
11 7 (1.15%) Adobe Experience Manager
11 7 (1.15%) Anypoint
11 7 (1.15%) BizTalk Server
11 7 (1.15%) Jetty
11 7 (1.15%) nginx
12 6 (0.99%) Alfresco
12 6 (0.99%) WebLogic
13 5 (0.82%) WebSphere Application Server
Applications
1 5 (0.82%) Microsoft Excel
2 4 (0.66%) Microsoft Office
2 4 (0.66%) MS Visio
3 3 (0.49%) Microsoft PowerPoint
4 2 (0.33%) Adobe Illustrator
4 2 (0.33%) Photoshop
4 2 (0.33%) Sketch
5 1 (0.16%) Adobe XD
5 1 (0.16%) Chatbot
Business Applications
1 5 (0.82%) BusinessWorks
1 5 (0.82%) Oracle ERP
1 5 (0.82%) Sparx Enterprise Architect
2 4 (0.66%) BondVision
3 3 (0.49%) Shopify
4 2 (0.33%) Dynamics CRM
4 2 (0.33%) NetSuite
4 2 (0.33%) Oracle EBS
4 2 (0.33%) Salesforce.com CRM
4 2 (0.33%) SAP Hybris
4 2 (0.33%) SunGard Martini
4 2 (0.33%) WebTrends
5 1 (0.16%) Adobe Campaign
5 1 (0.16%) assyst
5 1 (0.16%) IBM Operational Decision Manager
5 1 (0.16%) Infor M3
5 1 (0.16%) Kondor
Cloud Services
1 144 (23.72%) Azure
2 137 (22.57%) AWS
3 52 (8.57%) GitHub
4 49 (8.07%) Azure DevOps
5 33 (5.44%) PaaS
6 30 (4.94%) IaaS
7 28 (4.61%) Serverless
8 27 (4.45%) Amazon S3
9 25 (4.12%) AWS Lambda
9 25 (4.12%) GCP
10 23 (3.79%) SaaS
11 22 (3.62%) OpenShift
12 21 (3.46%) Power Platform
13 19 (3.13%) Amazon EC2
14 17 (2.80%) npm
15 14 (2.31%) Amazon CloudWatch
15 14 (2.31%) Azure Storage
16 13 (2.14%) Amazon ECS
16 13 (2.14%) Amazon SQS
17 12 (1.98%) Azure Data Factory
Communications & Networking
1 56 (9.23%) HTTP
2 34 (5.60%) TCP/IP
3 23 (3.79%) Firewall
4 15 (2.47%) DNS
5 13 (2.14%) SSL
6 12 (1.98%) Internet
7 11 (1.81%) WAN
8 9 (1.48%) MPLS
9 8 (1.32%) BGP
9 8 (1.32%) LAN
10 7 (1.15%) HTTPS
10 7 (1.15%) Intrusion Detection
10 7 (1.15%) SNMP
10 7 (1.15%) VPN
11 6 (0.99%) Ethernet VPN
12 5 (0.82%) IPv4
13 4 (0.66%) FTP
13 4 (0.66%) RSVP
13 4 (0.66%) VLAN
13 4 (0.66%) VRRP
Database & Business Intelligence
1 100 (16.47%) Relational Database
2 76 (12.52%) SQL Server
3 52 (8.57%) MongoDB
4 49 (8.07%) Oracle Database
5 41 (6.75%) PostgreSQL
6 37 (6.10%) Oracle Database 12c
7 35 (5.77%) NoSQL
8 28 (4.61%) RDBMS
9 23 (3.79%) DynamoDB
10 22 (3.62%) Elasticsearch
11 19 (3.13%) Data Warehouse
11 19 (3.13%) MySQL
12 17 (2.80%) Amazon RDS
12 17 (2.80%) Hadoop
13 16 (2.64%) Power BI
14 13 (2.14%) Data Lake
14 13 (2.14%) Parquet
15 11 (1.81%) Big Data
15 11 (1.81%) ObjectStore
15 11 (1.81%) SQL Server Integration Services
Development Applications
1 154 (25.37%) Git (software)
2 152 (25.04%) Jenkins
3 110 (18.12%) JIRA
4 75 (12.36%) Maven
5 50 (8.24%) JUnit
6 46 (7.58%) Bitbucket
7 45 (7.41%) Visual Studio
8 32 (5.27%) GitLab
9 28 (4.61%) Mockito
9 28 (4.61%) SonarQube
10 27 (4.45%) Eclipse
10 27 (4.45%) TeamCity
11 26 (4.28%) Postman
11 26 (4.28%) Selenium
12 25 (4.12%) Artifactory
13 24 (3.95%) Cucumber
13 24 (3.95%) Subversion
14 23 (3.79%) SoapUI
15 20 (3.29%) Gradle
16 19 (3.13%) Cypress.io
General
1 189 (31.14%) Finance
2 144 (23.72%) Social Skills
3 125 (20.59%) Banking
4 57 (9.39%) Analytical Skills
5 37 (6.10%) Investment Banking
6 34 (5.60%) Back Office
7 21 (3.46%) Public Sector
8 18 (2.97%) Billing
8 18 (2.97%) Retail
9 17 (2.80%) Front Office
10 16 (2.64%) Retail Banking
11 15 (2.47%) Marketing
12 14 (2.31%) Presentation Skills
13 13 (2.14%) Financial Institution
14 12 (1.98%) Legal
15 10 (1.65%) Documentation Skills
16 9 (1.48%) Telecoms
17 7 (1.15%) Inclusion and Diversity
18 6 (0.99%) Advertising
19 4 (0.66%) Law
Job Titles
1 291 (47.94%) Developer
2 75 (12.36%) Java Developer
3 61 (10.05%) Architect
4 47 (7.74%) Senior Developer
5 38 (6.26%) C++ Developer
6 37 (6.10%) C# Developer
7 36 (5.93%) Analyst
8 32 (5.27%) C++/C# Developer
9 26 (4.28%) React Developer
10 24 (3.95%) DevOps Engineer
10 24 (3.95%) Solutions Architect
11 23 (3.79%) Software Engineer
12 22 (3.62%) Senior Java Developer
13 21 (3.46%) C# Developer - Investment Banking
13 21 (3.46%) Investment Banking C++ Developer
14 20 (3.29%) Data Engineer
14 20 (3.29%) Full Stack Developer
15 19 (3.13%) Front End Developer (Client-Side Developer)
16 18 (2.97%) Business Analyst
17 16 (2.64%) Consultant
Libraries, Frameworks & Software Standards
1 295 (48.60%) XML
2 263 (43.33%) REST
3 145 (23.89%) HTML
4 133 (21.91%) SOAP
5 131 (21.58%) Web Services
6 129 (21.25%) Spring
7 114 (18.78%) CSS
8 105 (17.30%) React
9 94 (15.49%) .NET
9 94 (15.49%) Spring Boot
10 91 (14.99%) RESTful
11 58 (9.56%) .NET Framework
12 56 (9.23%) Kafka
13 55 (9.06%) AngularJS
14 51 (8.40%) Node.js
15 50 (8.24%) Hibernate
16 46 (7.58%) HTML5
17 40 (6.59%) .NET Core
18 39 (6.43%) J2EE
19 38 (6.26%) JPA
Miscellaneous
1 47 (7.74%) User Experience
2 36 (5.93%) Mobile App
3 27 (4.45%) Fixed Income
4 19 (3.13%) Public Cloud
5 18 (2.97%) Data Structures
6 17 (2.80%) Enterprise Software
7 15 (2.47%) Reinsurance
8 14 (2.31%) Greenfield Project
9 11 (1.81%) Management Information System
9 11 (1.81%) Self-Motivation
10 9 (1.48%) Cloud Native
10 9 (1.48%) Hedge funds
10 9 (1.48%) Hybrid Cloud
10 9 (1.48%) Virtual Team
11 8 (1.32%) Linux Command Line
11 8 (1.32%) Low-Code
11 8 (1.32%) Reference Data
12 7 (1.15%) Data Protection Act
12 7 (1.15%) Derivative
12 7 (1.15%) Wiki
Operating Systems
1 77 (12.69%) Windows
2 75 (12.36%) Linux
3 42 (6.92%) Unix
4 19 (3.13%) Android
5 12 (1.98%) Apple iOS
6 5 (0.82%) Mac OS
7 2 (0.33%) Windows Server
8 1 (0.16%) Mac OS X
8 1 (0.16%) Ubuntu
Processes & Methodologies
1 246 (40.53%) Agile
2 202 (33.28%) DevOps
3 136 (22.41%) CI/CD
4 133 (21.91%) Test Automation
5 125 (20.59%) Microservices
6 103 (16.97%) Scrum
7 73 (12.03%) Problem-Solving
8 71 (11.70%) SOA
8 71 (11.70%) TDD
9 70 (11.53%) Data Modelling
10 61 (10.05%) Software Engineering
11 60 (9.88%) Unit Testing
12 57 (9.39%) ETL
12 57 (9.39%) Multithreading
13 55 (9.06%) OO
14 54 (8.90%) BDD
14 54 (8.90%) Business Intelligence
15 53 (8.73%) SDLC
16 51 (8.40%) Full Stack Development
17 43 (7.08%) Kanban
Programming Languages
1 251 (41.35%) Java
2 234 (38.55%) SQL
3 205 (33.77%) JavaScript
4 113 (18.62%) Python
5 88 (14.50%) C#
6 62 (10.21%) TypeScript
7 43 (7.08%) C++
8 36 (5.93%) PowerShell
9 30 (4.94%) PL/SQL
10 25 (4.12%) ES6
11 21 (3.46%) Bash
12 13 (2.14%) Kotlin
12 13 (2.14%) T-SQL
13 11 (1.81%) Ruby
13 11 (1.81%) Shell Script
14 10 (1.65%) SPARQL
15 9 (1.48%) VB.NET
16 8 (1.32%) C
16 8 (1.32%) Perl
16 8 (1.32%) PHP
Qualifications
1 47 (7.74%) Security Cleared
2 41 (6.75%) SC Cleared
3 39 (6.43%) Degree
4 26 (4.28%) Computer Science Degree
5 5 (0.82%) CEH
5 5 (0.82%) CISM
5 5 (0.82%) CISSP
5 5 (0.82%) DV Cleared
6 3 (0.49%) AWS Certification
6 3 (0.49%) ISEB
6 3 (0.49%) ISTQB
6 3 (0.49%) PMI Certification
6 3 (0.49%) PMP
7 2 (0.33%) Master's Degree
7 2 (0.33%) OCPJP
7 2 (0.33%) Sun Certification
8 1 (0.16%) CCNA
8 1 (0.16%) Cisco Certification
8 1 (0.16%) Microsoft Certification
8 1 (0.16%) Numerate Degree
Quality Assurance & Compliance
1 45 (7.41%) QA
2 16 (2.64%) Accessibility
3 10 (1.65%) GDPR
4 5 (0.82%) Data Quality
5 4 (0.66%) WCAG
6 2 (0.33%) ISO 20022
System Software
1 86 (14.17%) Docker
2 16 (2.64%) Active Directory
3 11 (1.81%) Virtual Machines
4 9 (1.48%) VMware Infrastructure
5 3 (0.49%) VMware NSX
5 3 (0.49%) vSphere
6 2 (0.33%) OpenAM
7 1 (0.16%) OpenDJ
7 1 (0.16%) VMware ESXi
Systems Management
1 77 (12.69%) Kubernetes
2 51 (8.40%) Ansible
3 39 (6.43%) Terraform
4 18 (2.97%) Kibana
5 15 (2.47%) Puppet
6 11 (1.81%) BladeLogic
7 9 (1.48%) logstash
8 8 (1.32%) Istio
9 6 (0.99%) CA Service Virtualization
10 5 (0.82%) Packer
10 5 (0.82%) TIBCO Hawk
11 4 (0.66%) HP Fortify
11 4 (0.66%) Microsoft Intune
11 4 (0.66%) MOM
11 4 (0.66%) Opscode Chef
12 3 (0.49%) Control-M
12 3 (0.49%) PowerCLI
12 3 (0.49%) vRealize
12 3 (0.49%) vRealize Orchestrator
12 3 (0.49%) WMI
Vendors
1 112 (18.45%) Oracle
2 67 (11.04%) Microsoft
3 36 (5.93%) IBM
4 28 (4.61%) Google
5 23 (3.79%) Splunk
6 20 (3.29%) MuleSoft
7 16 (2.64%) Sparx
8 15 (2.47%) AppDynamics
9 14 (2.31%) Salesforce.com
9 14 (2.31%) TIBCO
10 12 (1.98%) ForgeRock
10 12 (1.98%) SAP
11 11 (1.81%) Adobe
11 11 (1.81%) ServiceNow
12 10 (1.65%) F5
12 10 (1.65%) Informatica
12 10 (1.65%) VMware
13 9 (1.48%) Databricks
14 8 (1.32%) Cisco
14 8 (1.32%) Confluent