Period
to 21 November 2017

The following table provides summary statistics for contract job vacancies advertised in the City of 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 21 November 2017 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
Central London > City of London
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 95 92 142
Rank change year-on-year -3 +50 -17
Contract jobs citing JSON 196 182 132
As % of all contract IT jobs advertised in the City of London 2.74% 2.74% 1.46%
As % of the Libraries, Frameworks & Software Standards category 7.23% 7.63% 4.69%
Number of daily rates quoted 156 158 113
City of London median daily rate £450 £475 £425
Median daily rate % change year-on-year -5.26% +11.76% +11.84%
10th Percentile £375 £354 £308
90th Percentile £638 £588 £573
Central London median daily rate £450 £455 £413
% change year-on-year -1.10% +10.30% +9.27%
Number of hourly rates quoted 0 0 2
City of London median hourly rate - - £104.00
Central London median hourly rate - - £104.00

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

All Software Libraries and Frameworks
City of London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 2712 2386 2817
As % of all contract IT jobs advertised in the City of London 37.92% 35.86% 31.09%
Number of daily rates quoted 2275 2018 2325
City of London median daily rate £513 £475 £475
Median daily rate % change year-on-year +7.89% - +5.56%
10th Percentile £363 £325 £313
90th Percentile £675 £638 £638
Central London median daily rate £500 £475 £465
% change year-on-year +5.26% +2.15% +9.41%
Number of hourly rates quoted 10 4 14
City of London median hourly rate £22.99 £35.00 £38.75
Median hourly rate % change year-on-year -34.31% -9.68% +29.17%
10th Percentile £20.28 £19.00 £12.40
90th Percentile £33.75 £56.31 £66.25
Central London median hourly rate £21.50 £35.00 £38.75
% change year-on-year -38.57% -9.68% +29.17%

JSON
Job Vacancy Trend in the City of London

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

Job vacancy trend for JSON in the City of London

JSON
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing JSON in the City of London.

Contractor daily rate trend for JSON in the City of London

JSON
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing JSON in the City of London over the 6 months to 21 November 2017.

Contractor daily rate histogram for JSON in the City of London

JSON
Contractor Hourly Rate Trend in the City of London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing JSON in the City of London.

Contractor hourly rate trend for JSON in the City of London

JSON
Contract Job Locations in the City of 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 City of London region over the 6 months to 21 November 2017. 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
London Bridge - 1 £425 -
JSON
Central London

For the 6 months to 21 November 2017, IT contractor jobs citing JSON also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for JSON.

1 112 (57.14%) Agile Software Development
2 103 (52.55%) Java
3 96 (48.98%) REST
4 91 (46.43%) XML
5 77 (39.29%) JavaScript
6 74 (37.76%) Web Services
7 73 (37.24%) TDD
8 66 (33.67%) HTML
9 58 (29.59%) SQL
10 56 (28.57%) AngularJS
11 48 (24.49%) Scrum
12 47 (23.98%) CSS
12 47 (23.98%) SQL Server
12 47 (23.98%) RESTful
13 45 (22.96%) SOAP
14 42 (21.43%) C#
14 42 (21.43%) .NET
15 40 (20.41%) Node.js
16 39 (19.90%) Git (software)
17 34 (17.35%) Amazon AWS
17 34 (17.35%) HTML5
18 33 (16.84%) Test Automation
18 33 (16.84%) Jenkins
19 32 (16.33%) Spring
20 31 (15.82%) RabbitMQ
21 30 (15.31%) Android
21 30 (15.31%) Finance
22 27 (13.78%) Linux
22 27 (13.78%) JIRA
22 27 (13.78%) ASP.NET Web API

JSON
Co-occurring IT Skills in the City of 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 13 (6.63%) Confluence
2 11 (5.61%) Apache
3 10 (5.10%) Apache Spark
4 9 (4.59%) Tomcat
5 6 (3.06%) WildFly
6 4 (2.04%) Mule
7 3 (1.53%) WebSphere
8 2 (1.02%) Apache Solr
8 2 (1.02%) Cloud Foundry
8 2 (1.02%) Elasticsearch
8 2 (1.02%) GemFire
8 2 (1.02%) JBoss
8 2 (1.02%) SAS
9 1 (0.51%) Gunicorn
9 1 (0.51%) IIS
9 1 (0.51%) Liferay
9 1 (0.51%) Mule ESB
9 1 (0.51%) nginx
9 1 (0.51%) SharePoint
Applications
1 6 (3.06%) Microsoft Excel
2 4 (2.04%) MS Visio
3 1 (0.51%) Microsoft Office
3 1 (0.51%) Microsoft Project
Business Applications
1 1 (0.51%) Dynamics CRM
1 1 (0.51%) RMDS
Cloud Services
1 34 (17.35%) Amazon AWS
2 13 (6.63%) Microsoft Azure
3 9 (4.59%) SaaS
4 8 (4.08%) GitHub
4 8 (4.08%) npm
5 7 (3.57%) PaaS
6 3 (1.53%) Amazon S3
6 3 (1.53%) Cloud Computing
6 3 (1.53%) IaaS
7 2 (1.02%) CloudBees
7 2 (1.02%) Google Cloud Platform
7 2 (1.02%) OpenShift
7 2 (1.02%) Serverless
8 1 (0.51%) Amazon EC2
8 1 (0.51%) AWS Lambda
8 1 (0.51%) Azure Active Directory
8 1 (0.51%) Bluemix
8 1 (0.51%) IBM Cloud
8 1 (0.51%) Salesforce Sales Cloud
8 1 (0.51%) Salesforce Service Cloud
Communications & Networking
1 22 (11.22%) HTTP
2 6 (3.06%) Internet
3 5 (2.55%) DNS
4 3 (1.53%) MPLS
4 3 (1.53%) VPLS
5 2 (1.02%) Bluetooth
5 2 (1.02%) DSL
5 2 (1.02%) LDAP
5 2 (1.02%) X.509
6 1 (0.51%) HTTPS
6 1 (0.51%) SMS
6 1 (0.51%) snoop
6 1 (0.51%) SSH
Database & Business Intelligence
1 47 (23.98%) SQL Server
2 26 (13.27%) NoSQL
3 22 (11.22%) Big Data
4 16 (8.16%) MongoDB
5 14 (7.14%) Hadoop
6 11 (5.61%) MySQL
6 11 (5.61%) Relational Database
7 10 (5.10%) PostgreSQL
8 9 (4.59%) HBase
9 6 (3.06%) RDBMS
10 4 (2.04%) Hazelcast
10 4 (2.04%) SQL Server 2012
10 4 (2.04%) SQL Server 2014
10 4 (2.04%) SQL Server 2016
10 4 (2.04%) SQL Server Integration Services
11 3 (1.53%) Apache Cassandra
11 3 (1.53%) CouchDB
11 3 (1.53%) Data Warehouse
11 3 (1.53%) OLTP
11 3 (1.53%) QlikView
Development Applications
1 39 (19.90%) Git (software)
2 33 (16.84%) Jenkins
3 27 (13.78%) JIRA
4 19 (9.69%) Cucumber
5 13 (6.63%) Maven
6 12 (6.12%) JUnit
7 10 (5.10%) webpack
8 9 (4.59%) Subversion
9 8 (4.08%) Babel
10 7 (3.57%) Gradle
11 6 (3.06%) Mockito
11 6 (3.06%) Selenium
11 6 (3.06%) TeamCity
12 5 (2.55%) git-flow
12 5 (2.55%) gulp
12 5 (2.55%) Jasmine
12 5 (2.55%) Visual Studio
13 4 (2.04%) Calabash
13 4 (2.04%) Capybara
13 4 (2.04%) Grunt
General
1 30 (15.31%) Finance
2 25 (12.76%) Banking
3 22 (11.22%) Legal
4 15 (7.65%) Manufacturing
5 13 (6.63%) Marketing
6 12 (6.12%) Law
7 7 (3.57%) Retail
8 4 (2.04%) Telecoms
9 3 (1.53%) Advertising
9 3 (1.53%) Electronics
9 3 (1.53%) Front Office
9 3 (1.53%) Investment Banking
9 3 (1.53%) Retail Banking
9 3 (1.53%) Retail Finance
10 2 (1.02%) Financial Institution
10 2 (1.02%) Publishing
11 1 (0.51%) Games
11 1 (0.51%) Wholesale Banking
Job Titles
1 159 (81.12%) Developer
2 40 (20.41%) Java Developer
3 23 (11.73%) Android Developer
4 22 (11.22%) Senior Developer
5 20 (10.20%) JavaScript Developer
6 15 (7.65%) Agile Developer
7 11 (5.61%) Full Stack Developer
8 10 (5.10%) Analyst
8 10 (5.10%) Angular Developer
9 9 (4.59%) Scala Developer
10 8 (4.08%) .NET Developer
10 8 (4.08%) Developer in Test
10 8 (4.08%) Front End Developer (Client-Side Developer)
10 8 (4.08%) Microsoft Developer
10 8 (4.08%) Software Developer
11 7 (3.57%) SQL Developer
11 7 (3.57%) Web Developer
12 6 (3.06%) Architect
13 5 (2.55%) C# Developer
13 5 (2.55%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 96 (48.98%) REST
2 91 (46.43%) XML
3 74 (37.76%) Web Services
4 66 (33.67%) HTML
5 56 (28.57%) AngularJS
6 47 (23.98%) CSS
6 47 (23.98%) RESTful
7 45 (22.96%) SOAP
8 42 (21.43%) .NET
9 40 (20.41%) Node.js
10 34 (17.35%) HTML5
11 32 (16.33%) Spring
12 31 (15.82%) RabbitMQ
13 27 (13.78%) ASP.NET Web API
14 22 (11.22%) CSS3
15 21 (10.71%) jQuery
16 17 (8.67%) Kafka
16 17 (8.67%) React
17 15 (7.65%) RxJava
18 14 (7.14%) Spring Boot
Miscellaneous
1 12 (6.12%) User Experience
2 11 (5.61%) Mobile App
3 10 (5.10%) Analytical Skills
4 8 (4.08%) Greenfield Project
5 7 (3.57%) Computer Science
5 7 (3.57%) Data Structures
6 5 (2.55%) Algorithms
7 3 (1.53%) Enterprise Software
7 3 (1.53%) Mainframe
7 3 (1.53%) Semantic Web
7 3 (1.53%) Virtual Team
8 2 (1.02%) Fintech
8 2 (1.02%) Linked Data
8 2 (1.02%) Social Media
8 2 (1.02%) SWIFT
9 1 (0.51%) Foreign Exchange (FX)
9 1 (0.51%) Internet of Things
9 1 (0.51%) Smartphone
9 1 (0.51%) Video on Demand
9 1 (0.51%) W3C
Operating Systems
1 30 (15.31%) Android
2 27 (13.78%) Linux
3 17 (8.67%) Unix
4 15 (7.65%) Apple iOS
5 11 (5.61%) Windows
6 1 (0.51%) HPUX
6 1 (0.51%) Solaris
6 1 (0.51%) Windows Server
6 1 (0.51%) Windows Server 2008
Processes & Methodologies
1 112 (57.14%) Agile Software Development
2 73 (37.24%) TDD
3 48 (24.49%) Scrum
4 33 (16.84%) Test Automation
5 26 (13.27%) API Development
6 24 (12.24%) Android Development
6 24 (12.24%) Multithreading
7 23 (11.73%) BDD
8 21 (10.71%) Kanban
8 21 (10.71%) MVC
9 18 (9.18%) DevOps
10 16 (8.16%) OOP
10 16 (8.16%) Web Development
11 15 (7.65%) User Stories
12 14 (7.14%) Continuous Integration
12 14 (7.14%) OO
12 14 (7.14%) Unit Testing
13 13 (6.63%) Front End Development
13 13 (6.63%) Microservices
13 13 (6.63%) Test Scripting
Programming Languages
1 103 (52.55%) Java
2 77 (39.29%) JavaScript
3 58 (29.59%) SQL
4 42 (21.43%) C#
5 14 (7.14%) Python
5 14 (7.14%) Scala
6 13 (6.63%) Ruby
7 10 (5.10%) PL/SQL
7 10 (5.10%) T-SQL
8 8 (4.08%) ECMAScript
8 8 (4.08%) ES6
9 6 (3.06%) PHP
10 5 (2.55%) Groovy
11 4 (2.04%) Apple Swift
11 4 (2.04%) R
11 4 (2.04%) Shell Script
11 4 (2.04%) SPARQL
11 4 (2.04%) TypeScript
12 3 (1.53%) C++
12 3 (1.53%) VBA
Qualifications
1 9 (4.59%) Security Cleared
2 8 (4.08%) Degree
3 4 (2.04%) SC Cleared
4 3 (1.53%) DV Cleared
5 2 (1.02%) Computer Science Degree
6 1 (0.51%) Numerate Degree
Quality Assurance & Compliance
1 15 (7.65%) QA
2 9 (4.59%) MiFID
3 4 (2.04%) Data Quality
4 2 (1.02%) Dodd-Frank
4 2 (1.02%) EMIR
System Software
1 19 (9.69%) Docker
2 13 (6.63%) Active Directory
Systems Management
1 2 (1.02%) Hadoop YARN
1 2 (1.02%) Oozie
1 2 (1.02%) Rundeck
2 1 (0.51%) Ansible
2 1 (0.51%) BladeLogic
2 1 (0.51%) Kubernetes
2 1 (0.51%) Piwik
Vendors
1 21 (10.71%) Apigee
2 15 (7.65%) Microsoft
3 12 (6.12%) Oracle
4 6 (3.06%) Atlassian
5 5 (2.55%) Salesforce.com
6 4 (2.04%) TIBCO
7 3 (1.53%) Alteryx
7 3 (1.53%) Google
7 3 (1.53%) IBM
7 3 (1.53%) SAP
7 3 (1.53%) ServiceNow
7 3 (1.53%) Telerik
7 3 (1.53%) TSYS
8 2 (1.02%) F5
8 2 (1.02%) Reuters
8 2 (1.02%) Solace
8 2 (1.02%) Vertica
8 2 (1.02%) Xamarin
9 1 (0.51%) FXall
9 1 (0.51%) Informatica