Period
to 21 August 2018

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 August 2018 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 Aug 2018
Same period 2017 Same period 2016
Rank 97 111 122
Rank change year-on-year +14 +11 +7
Contract jobs citing JSON 188 163 132
As % of all contract IT jobs advertised in the City of London 2.68% 2.46% 1.95%
As % of the Libraries, Frameworks & Software Standards category 6.74% 6.50% 5.60%
Number of daily rates quoted 155 124 114
City of London median daily rate £500 £475 £421
Median daily rate % change year-on-year +5.26% +12.76% -0.88%
10th Percentile £395 £375 £322
90th Percentile £625 £638 £550
Central London median daily rate £500 £475 £425
% change year-on-year +5.26% +11.76% -
Number of hourly rates quoted 0 1 0
City of London median hourly rate - £26.80 -
Central London median hourly rate - £26.80 -

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 2,790 2,506 2,356
As % of all contract IT jobs advertised in the City of London 39.77% 37.83% 34.85%
Number of daily rates quoted 2,285 2,020 1,993
City of London median daily rate £525 £500 £475
Median daily rate % change year-on-year +5.00% +5.26% +2.70%
10th Percentile £375 £363 £321
90th Percentile £675 £650 £638
Central London median daily rate £525 £500 £452
% change year-on-year +5.00% +10.74% +0.33%
Number of hourly rates quoted 10 11 5
City of London median hourly rate £22.00 £24.49 £20.00
Median hourly rate % change year-on-year -10.15% +22.43% -32.47%
10th Percentile £20.38 £20.75 £16.69
90th Percentile £45.63 £29.62 £50.43
Central London median hourly rate £22.00 £24.36 £20.00
% change year-on-year -9.69% +21.80% -42.86%

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 August 2018.

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 August 2018. 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 - 3 £475 -
JSON
Central London

For the 6 months to 21 August 2018, 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 City of London region with a requirement for JSON.

1 89 (47.34%) REST
2 81 (43.09%) Java
3 69 (36.70%) JavaScript
4 68 (36.17%) Agile Software Development
5 62 (32.98%) XML
6 61 (32.45%) HTML
7 58 (30.85%) TDD
8 53 (28.19%) Finance
9 52 (27.66%) Git (software)
10 50 (26.60%) DevOps
11 44 (23.40%) Microservices
12 43 (22.87%) CSS
13 41 (21.81%) .NET
13 41 (21.81%) C#
14 40 (21.28%) Web Services
15 37 (19.68%) HTML5
16 36 (19.15%) Amazon AWS
16 36 (19.15%) SQL Server
17 33 (17.55%) Scrum
17 33 (17.55%) Continuous Integration
17 33 (17.55%) Microsoft Azure
17 33 (17.55%) Jenkins
18 32 (17.02%) React
18 32 (17.02%) SOAP
19 31 (16.49%) SQL
19 31 (16.49%) AngularJS
20 29 (15.43%) Python
21 27 (14.36%) Docker
22 25 (13.30%) Test Automation
22 25 (13.30%) PowerShell

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 12 (6.38%) Tomcat
2 10 (5.32%) Elasticsearch
3 9 (4.79%) Confluence
4 7 (3.72%) WebSphere
5 5 (2.66%) nginx
5 5 (2.66%) SharePoint
5 5 (2.66%) WebLogic
6 4 (2.13%) Apache
6 4 (2.13%) JBoss
6 4 (2.13%) Oracle SOA Suite
7 3 (1.60%) Cloud Foundry
7 3 (1.60%) CMS
8 2 (1.06%) Apache Solr
8 2 (1.06%) IIS
9 1 (0.53%) Adobe Experience Manager
9 1 (0.53%) Apache Spark
9 1 (0.53%) Mule
Applications
1 3 (1.60%) Microsoft Excel
2 2 (1.06%) Photoshop
3 1 (0.53%) Microsoft Office
3 1 (0.53%) Microsoft Project
3 1 (0.53%) MS Visio
3 1 (0.53%) Spreadsheet
Business Applications
1 1 (0.53%) Dynamics CRM
1 1 (0.53%) Dynamics GP
Cloud Services
1 36 (19.15%) Amazon AWS
2 33 (17.55%) Microsoft Azure
3 17 (9.04%) IaaS
4 14 (7.45%) Amazon S3
5 12 (6.38%) Amazon EC2
6 11 (5.85%) npm
6 11 (5.85%) PaaS
7 10 (5.32%) Amazon SQS
7 10 (5.32%) Heroku
8 7 (3.72%) Amazon CloudWatch
8 7 (3.72%) GitHub
9 6 (3.19%) Azure Active Directory
10 5 (2.66%) Google Cloud Platform
11 3 (1.60%) Office 365
11 3 (1.60%) OpenShift
12 2 (1.06%) Amazon EMR
12 2 (1.06%) AWS CloudFormation
12 2 (1.06%) Route 53
12 2 (1.06%) Salesforce Service Cloud
12 2 (1.06%) Virtual Private Cloud
Communications & Networking
1 8 (4.26%) Internet
2 7 (3.72%) AMQP
3 6 (3.19%) DNS
3 6 (3.19%) HTTP
4 4 (2.13%) Firewall
4 4 (2.13%) X.509
5 3 (1.60%) MQTT
6 2 (1.06%) BIG-IP
6 2 (1.06%) Intranet
6 2 (1.06%) Network Security
6 2 (1.06%) TCP/IP
6 2 (1.06%) VPN
7 1 (0.53%) BGP
7 1 (0.53%) Ethernet
7 1 (0.53%) FTP
7 1 (0.53%) MPLS
7 1 (0.53%) NGN
7 1 (0.53%) SMS
7 1 (0.53%) TACACS
7 1 (0.53%) WAN
Database & Business Intelligence
1 36 (19.15%) SQL Server
2 24 (12.77%) MongoDB
3 18 (9.57%) Big Data
4 17 (9.04%) NoSQL
5 15 (7.98%) Hadoop
6 14 (7.45%) Relational Database
7 10 (5.32%) PostgreSQL
8 6 (3.19%) MySQL
8 6 (3.19%) Power BI
9 5 (2.66%) SQL Server Integration Services
10 4 (2.13%) Data Warehouse
10 4 (2.13%) Redis
11 3 (1.60%) Apache Cassandra
11 3 (1.60%) Apache Hive
11 3 (1.60%) Azure SQL Database
11 3 (1.60%) Bigtable
11 3 (1.60%) Blockchain
11 3 (1.60%) HBase
11 3 (1.60%) SQL Server 2012
12 2 (1.06%) Cloud Spanner
Development Applications
1 52 (27.66%) Git (software)
2 33 (17.55%) Jenkins
3 17 (9.04%) JIRA
4 14 (7.45%) gulp
5 12 (6.38%) Visual Studio
5 12 (6.38%) Visual Studio Team System
6 11 (5.85%) Maven
7 10 (5.32%) Babel
7 10 (5.32%) Grunt
7 10 (5.32%) Team Foundation Server
8 9 (4.79%) webpack
9 8 (4.26%) Selenium
10 4 (2.13%) Cucumber
10 4 (2.13%) Jasmine
10 4 (2.13%) JUnit
10 4 (2.13%) Subversion
10 4 (2.13%) TeamCity
11 3 (1.60%) GoogleTest
11 3 (1.60%) Mockito
11 3 (1.60%) Sonatype Nexus
General
1 53 (28.19%) Finance
2 16 (8.51%) Banking
3 10 (5.32%) Advertising
3 10 (5.32%) Legal
4 8 (4.26%) Financial Institution
5 6 (3.19%) Front Office
6 5 (2.66%) Telecoms
7 4 (2.13%) Retail Banking
8 3 (1.60%) Marketing
9 2 (1.06%) Automotive
9 2 (1.06%) Investment Banking
9 2 (1.06%) Law
10 1 (0.53%) Digital Economy
10 1 (0.53%) Games
Job Titles
1 108 (57.45%) Developer
2 27 (14.36%) Java Developer
3 21 (11.17%) DevOps Engineer
4 19 (10.11%) Senior Developer
5 18 (9.57%) Architect
5 18 (9.57%) Azure DevOps
6 16 (8.51%) Azure DevOps Engineer
6 16 (8.51%) Azure Engineer
7 14 (7.45%) Front End Developer (Client-Side Developer)
8 11 (5.85%) .NET Developer
9 10 (5.32%) Automation Engineer
9 10 (5.32%) C# Developer
9 10 (5.32%) Integration Developer
9 10 (5.32%) Ruby on Rails Developer
10 9 (4.79%) JavaScript Developer
10 9 (4.79%) UI Developer
11 8 (4.26%) Angular Developer
11 8 (4.26%) Senior Java Developer
12 7 (3.72%) Software Engineer
13 6 (3.19%) Digital Architect
Libraries, Frameworks & Software Standards
1 89 (47.34%) REST
2 62 (32.98%) XML
3 61 (32.45%) HTML
4 43 (22.87%) CSS
5 41 (21.81%) .NET
6 40 (21.28%) Web Services
7 37 (19.68%) HTML5
8 32 (17.02%) React
8 32 (17.02%) SOAP
9 31 (16.49%) AngularJS
10 24 (12.77%) CSS3
10 24 (12.77%) RESTful
11 23 (12.23%) Node.js
11 23 (12.23%) RabbitMQ
12 20 (10.64%) OAuth
13 19 (10.11%) J2EE
13 19 (10.11%) jQuery
14 18 (9.57%) Redux
15 17 (9.04%) Sass
16 16 (8.51%) Java EE
Miscellaneous
1 16 (8.51%) User Experience
1 16 (8.51%) Virtual Team
2 13 (6.91%) Mobile App
3 12 (6.38%) Fintech
4 7 (3.72%) Computer Science
5 5 (2.66%) Analytical Skills
5 5 (2.66%) Data Centre
5 5 (2.66%) Greenfield Project
6 4 (2.13%) Data Structures
6 4 (2.13%) Derivative
6 4 (2.13%) Internet of Things
7 3 (1.60%) Reference Data
8 2 (1.06%) Analytical Mindset
8 2 (1.06%) Enterprise Software
8 2 (1.06%) Equity Derivative
8 2 (1.06%) Mobile Payment
8 2 (1.06%) Self-Motivation
9 1 (0.53%) Animation
9 1 (0.53%) Life Science
9 1 (0.53%) RIA
Operating Systems
1 17 (9.04%) Windows
2 16 (8.51%) Linux
3 13 (6.91%) Windows Server
4 12 (6.38%) Android
4 12 (6.38%) Apple iOS
5 8 (4.26%) Unix
6 3 (1.60%) Windows Server 2012
Processes & Methodologies
1 68 (36.17%) Agile Software Development
2 58 (30.85%) TDD
3 50 (26.60%) DevOps
4 44 (23.40%) Microservices
5 33 (17.55%) Continuous Integration
5 33 (17.55%) Scrum
6 25 (13.30%) Test Automation
7 23 (12.23%) MVC
8 22 (11.70%) Front End Development
9 20 (10.64%) SOA
10 16 (8.51%) OO
10 16 (8.51%) Stakeholder Management
11 15 (7.98%) Software Engineering
12 14 (7.45%) MapReduce
13 13 (6.91%) Kanban
13 13 (6.91%) SDLC
14 12 (6.38%) Data Modelling
14 12 (6.38%) ETL
15 11 (5.85%) BDD
15 11 (5.85%) OOP
Programming Languages
1 81 (43.09%) Java
2 69 (36.70%) JavaScript
3 41 (21.81%) C#
4 31 (16.49%) SQL
5 29 (15.43%) Python
6 25 (13.30%) PowerShell
7 20 (10.64%) Ruby
8 17 (9.04%) ES6
9 14 (7.45%) Java 8
10 9 (4.79%) C++
11 8 (4.26%) TypeScript
12 7 (3.72%) C
13 5 (2.66%) ES7
13 5 (2.66%) T-SQL
13 5 (2.66%) XPath
14 4 (2.13%) ANSI SQL
14 4 (2.13%) Apple Swift
14 4 (2.13%) Bash Shell
14 4 (2.13%) Scala
14 4 (2.13%) Shell Script
Qualifications
1 12 (6.38%) Security Cleared
2 8 (4.26%) SC Cleared
3 7 (3.72%) Degree
4 3 (1.60%) A+ Certification
4 3 (1.60%) DV Cleared
5 1 (0.53%) AWS Certification
5 1 (0.53%) ISEB
Quality Assurance & Compliance
1 10 (5.32%) QA
2 4 (2.13%) PSD2
3 3 (1.60%) Data Quality
4 1 (0.53%) GDPR
4 1 (0.53%) ISO 20022
System Software
1 27 (14.36%) Docker
2 18 (9.57%) Active Directory
3 1 (0.53%) Apache ZooKeeper
3 1 (0.53%) HDFS
3 1 (0.53%) OpenAM
3 1 (0.53%) OpenDJ
Systems Management
1 14 (7.45%) Ansible
2 12 (6.38%) Puppet
3 7 (3.72%) Kubernetes
4 4 (2.13%) Single Sign-On
4 4 (2.13%) Terraform
5 2 (1.06%) Control-M
5 2 (1.06%) ITRS Geneos
5 2 (1.06%) Matomo
5 2 (1.06%) Opscode Chef
6 1 (0.53%) HP ALM
6 1 (0.53%) Oozie
6 1 (0.53%) Packer
6 1 (0.53%) Salt
6 1 (0.53%) Systems Management Server (SMS)
6 1 (0.53%) WSUS
Vendors
1 20 (10.64%) Microsoft
2 16 (8.51%) Oracle
3 7 (3.72%) New Relic
3 7 (3.72%) Rollbar
4 5 (2.66%) Google
5 4 (2.13%) Cloudera
5 4 (2.13%) IBM
6 3 (1.60%) Hortonworks
6 3 (1.60%) Salesforce.com
6 3 (1.60%) Tableau
7 2 (1.06%) Apigee
7 2 (1.06%) Atlassian
7 2 (1.06%) Cisco
7 2 (1.06%) F5
7 2 (1.06%) Kony
7 2 (1.06%) Pardot
7 2 (1.06%) Solace
7 2 (1.06%) Splunk
8 1 (0.53%) AppDynamics
8 1 (0.53%) SaltStack