Period
to 20 January 2019

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 20 January 2019 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
20 Jan 2019
Same period 2018 Same period 2017
Rank 99 99 87
Rank change year-on-year 0 -12 +56
Contract jobs citing JSON 172 170 174
As % of all contract IT jobs advertised in the City of London 2.57% 2.41% 2.80%
As % of the Libraries, Frameworks & Software Standards category 6.54% 6.31% 7.78%
Number of daily rates quoted 143 144 150
City of London median daily rate £513 £450 £500
Median daily rate % change year-on-year +13.89% -10.00% +12.36%
10th Percentile £413 £375 £349
90th Percentile £635 £634 £601
Central London median daily rate £500 £450 £500
% change year-on-year +11.11% -10.00% +21.21%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

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 2,630 2,693 2,236
As % of all contract IT jobs advertised in the City of London 39.28% 38.22% 35.96%
Number of daily rates quoted 2,190 2,296 1,890
City of London median daily rate £525 £513 £475
Median daily rate % change year-on-year +2.44% +7.89% -
10th Percentile £409 £363 £325
90th Percentile £663 £663 £650
Central London median daily rate £525 £500 £475
% change year-on-year +5.00% +5.26% +5.56%
Number of hourly rates quoted 3 6 2
City of London median hourly rate £19.00 £27.55 £52.12
Median hourly rate % change year-on-year -31.02% -47.15% +30.31%
10th Percentile £14.90 £21.00 £45.66
90th Percentile £84.50 £57.88 £56.68
Central London median hourly rate £27.00 £27.09 £52.12
% change year-on-year -0.33% -48.03% +30.31%

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 20 January 2019.

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 20 January 2019. 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 -52 4 £475 +11.76%
JSON
Central London

For the 6 months to 20 January 2019, 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 88 (51.16%) Agile Software Development
2 68 (39.53%) JavaScript
3 67 (38.95%) XML
3 67 (38.95%) REST
4 60 (34.88%) Git (software)
4 60 (34.88%) Java
5 54 (31.40%) TDD
6 48 (27.91%) HTML
6 48 (27.91%) Finance
7 46 (26.74%) Scrum
8 43 (25.00%) SQL
9 41 (23.84%) Microsoft Azure
10 40 (23.26%) DevOps
11 36 (20.93%) CSS
12 34 (19.77%) Microservices
12 34 (19.77%) Continuous Integration
13 31 (18.02%) AngularJS
13 31 (18.02%) Jenkins
13 31 (18.02%) C#
14 30 (17.44%) Software Engineering
15 29 (16.86%) Test Automation
16 28 (16.28%) RESTful
17 26 (15.12%) Amazon AWS
17 26 (15.12%) Node.js
17 26 (15.12%) JIRA
17 26 (15.12%) Python
18 25 (14.53%) Banking
18 25 (14.53%) OAuth
19 24 (13.95%) SQL Server
20 23 (13.37%) Web Services

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 11 (6.40%) Confluence
2 10 (5.81%) Elasticsearch
3 9 (5.23%) Cloud Foundry
4 5 (2.91%) SharePoint
4 5 (2.91%) Tomcat
5 3 (1.74%) CMS
5 3 (1.74%) nginx
5 3 (1.74%) Oracle SOA Suite
5 3 (1.74%) WebSphere
6 2 (1.16%) Drupal
6 2 (1.16%) IIS
6 2 (1.16%) OpenStack
7 1 (0.58%) Apache
7 1 (0.58%) EPiServer
7 1 (0.58%) JBoss
7 1 (0.58%) Mule
7 1 (0.58%) Sitecore CMS
7 1 (0.58%) WebLogic
7 1 (0.58%) WebSphere Application Server
Applications
1 2 (1.16%) Photoshop
Business Applications
1 1 (0.58%) Eloqua
1 1 (0.58%) Remedy ITSM
Cloud Services
1 41 (23.84%) Microsoft Azure
2 26 (15.12%) Amazon AWS
3 16 (9.30%) IaaS
4 14 (8.14%) PaaS
5 12 (6.98%) Azure Active Directory
6 11 (6.40%) Office 365
7 9 (5.23%) GitHub
8 8 (4.65%) Amazon EC2
9 6 (3.49%) Google Cloud Platform
10 5 (2.91%) Amazon S3
11 4 (2.33%) AWS Fargate
11 4 (2.33%) Heroku
11 4 (2.33%) SaaS
12 3 (1.74%) Amazon SQS
12 3 (1.74%) npm
12 3 (1.74%) Yammer
13 2 (1.16%) BrowserStack
13 2 (1.16%) Cloud Computing
13 2 (1.16%) Google Play
13 2 (1.16%) Serverless
Communications & Networking
1 14 (8.14%) HTTP
2 6 (3.49%) X.509
3 5 (2.91%) DNS
4 4 (2.33%) Internet
5 3 (1.74%) AMQP
6 2 (1.16%) Firewall
7 1 (0.58%) BGP
7 1 (0.58%) DHCP
7 1 (0.58%) HTTPS
7 1 (0.58%) IPFIX
7 1 (0.58%) Junos
7 1 (0.58%) MPLS
7 1 (0.58%) MQTT
7 1 (0.58%) MRTG
7 1 (0.58%) OSPF
7 1 (0.58%) SNMP
7 1 (0.58%) SSL
7 1 (0.58%) TACACS
7 1 (0.58%) TCP/IP
7 1 (0.58%) VPN
Database & Business Intelligence
1 24 (13.95%) SQL Server
2 16 (9.30%) NoSQL
3 15 (8.72%) PostgreSQL
4 14 (8.14%) MongoDB
4 14 (8.14%) Relational Database
5 11 (6.40%) Big Data
6 10 (5.81%) MySQL
7 7 (4.07%) SQL Server Integration Services
8 6 (3.49%) Azure SQL Database
8 6 (3.49%) RDBMS
9 5 (2.91%) Hadoop
10 4 (2.33%) Amazon RDS
10 4 (2.33%) Cloud Spanner
10 4 (2.33%) Power BI
10 4 (2.33%) Redis
11 3 (1.74%) Amazon Redshift
11 3 (1.74%) Apache Cassandra
11 3 (1.74%) Bigtable
11 3 (1.74%) Blockchain
11 3 (1.74%) SQL Server 2012
Development Applications
1 60 (34.88%) Git (software)
2 31 (18.02%) Jenkins
3 26 (15.12%) JIRA
4 18 (10.47%) Selenium
5 11 (6.40%) Team Foundation Server
6 10 (5.81%) Maven
7 8 (4.65%) Gradle
8 7 (4.07%) gulp
8 7 (4.07%) SpecFlow
8 7 (4.07%) Subversion
8 7 (4.07%) Visual Studio
8 7 (4.07%) Visual Studio Team System
9 6 (3.49%) Cucumber
9 6 (3.49%) Eclipse
9 6 (3.49%) Grunt
9 6 (3.49%) JMeter
9 6 (3.49%) TeamCity
10 5 (2.91%) Atlassian Bamboo
10 5 (2.91%) IntelliJ
10 5 (2.91%) Jasmine
General
1 48 (27.91%) Finance
2 25 (14.53%) Banking
3 9 (5.23%) Advertising
3 9 (5.23%) Front Office
4 7 (4.07%) Investment Banking
5 4 (2.33%) Automotive
6 3 (1.74%) Marketing
7 2 (1.16%) Financial Institution
7 2 (1.16%) Retail
7 2 (1.16%) Retail Banking
8 1 (0.58%) Billing
8 1 (0.58%) Publishing
8 1 (0.58%) Telecoms
Job Titles
1 97 (56.40%) Developer
2 21 (12.21%) Java Developer
3 18 (10.47%) Senior Developer
4 13 (7.56%) Architect
5 12 (6.98%) Azure DevOps
6 11 (6.40%) Android Developer
7 10 (5.81%) C# Developer
7 10 (5.81%) DevOps Engineer
7 10 (5.81%) Front End Developer (Client-Side Developer)
7 10 (5.81%) Node.js Developer
8 8 (4.65%) Python Developer
9 7 (4.07%) Azure Engineer
9 7 (4.07%) Software Engineer
9 7 (4.07%) UI Developer
10 6 (3.49%) Angular Developer
10 6 (3.49%) Azure DevOps Engineer
10 6 (3.49%) Developer in Test
10 6 (3.49%) SQL Developer
11 5 (2.91%) iOS Developer
11 5 (2.91%) Software Developer
Libraries, Frameworks & Software Standards
1 67 (38.95%) REST
1 67 (38.95%) XML
2 48 (27.91%) HTML
3 36 (20.93%) CSS
4 31 (18.02%) AngularJS
5 28 (16.28%) RESTful
6 26 (15.12%) Node.js
7 25 (14.53%) OAuth
8 23 (13.37%) Web Services
9 22 (12.79%) .NET
9 22 (12.79%) HTML5
10 20 (11.63%) React
10 20 (11.63%) SOAP
11 19 (11.05%) OpenID
12 18 (10.47%) Spring
13 17 (9.88%) jQuery
13 17 (9.88%) OAuth2
14 15 (8.72%) Spring Boot
15 13 (7.56%) Sass
16 10 (5.81%) CSS3
Miscellaneous
1 19 (11.05%) Fintech
2 13 (7.56%) Mobile App
2 13 (7.56%) User Experience
3 8 (4.65%) Virtual Team
4 7 (4.07%) Enterprise Software
5 6 (3.49%) Analytical Skills
5 6 (3.49%) Greenfield Project
5 6 (3.49%) Self-Motivation
6 5 (2.91%) Fixed Income
7 4 (2.33%) Internet of Things
8 3 (1.74%) Algorithms
8 3 (1.74%) Data Structures
8 3 (1.74%) PKI
9 2 (1.16%) Analytical Mindset
9 2 (1.16%) Derivative
9 2 (1.16%) Private Cloud
10 1 (0.58%) Cloud Native
10 1 (0.58%) Cyberthreat
10 1 (0.58%) Linux Command Line
10 1 (0.58%) Reinsurance
Operating Systems
1 17 (9.88%) Android
2 16 (9.30%) Linux
3 11 (6.40%) Apple iOS
4 9 (5.23%) Windows
5 8 (4.65%) Unix
6 3 (1.74%) Red Hat Enterprise Linux
7 2 (1.16%) Ubuntu
8 1 (0.58%) CentOS
8 1 (0.58%) Debian
8 1 (0.58%) Windows Server
8 1 (0.58%) Windows Server 2012
Processes & Methodologies
1 88 (51.16%) Agile Software Development
2 54 (31.40%) TDD
3 46 (26.74%) Scrum
4 40 (23.26%) DevOps
5 34 (19.77%) Continuous Integration
5 34 (19.77%) Microservices
6 30 (17.44%) Software Engineering
7 29 (16.86%) Test Automation
8 21 (12.21%) SDLC
9 20 (11.63%) BDD
10 19 (11.05%) SOA
11 18 (10.47%) Unit Testing
12 17 (9.88%) Front End Development
13 15 (8.72%) Analytics
13 15 (8.72%) MVC
14 13 (7.56%) Android Development
14 13 (7.56%) Data Modelling
14 13 (7.56%) Kanban
15 12 (6.98%) Continuous Delivery
15 12 (6.98%) Integration Testing
Programming Languages
1 68 (39.53%) JavaScript
2 60 (34.88%) Java
3 43 (25.00%) SQL
4 31 (18.02%) C#
5 26 (15.12%) Python
6 18 (10.47%) PowerShell
7 13 (7.56%) ES6
8 11 (6.40%) Ruby
9 10 (5.81%) Java 8
9 10 (5.81%) Kotlin
10 9 (5.23%) TypeScript
11 8 (4.65%) Bash Shell
11 8 (4.65%) PL/SQL
12 6 (3.49%) XPath
13 5 (2.91%) PHP
14 4 (2.33%) Apple Swift
14 4 (2.33%) C
14 4 (2.33%) ES7
14 4 (2.33%) T-SQL
15 3 (1.74%) Perl
Qualifications
1 8 (4.65%) Degree
2 1 (0.58%) AWS Certification
2 1 (0.58%) Computer Science Degree
2 1 (0.58%) ISTQB
2 1 (0.58%) SC Cleared
2 1 (0.58%) Security Cleared
Quality Assurance & Compliance
1 18 (10.47%) QA
2 3 (1.74%) Solvency II
3 2 (1.16%) PSD2
4 1 (0.58%) ISO 20022
System Software
1 20 (11.63%) Docker
2 14 (8.14%) Active Directory
3 3 (1.74%) Apache ZooKeeper
4 2 (1.16%) VMware Infrastructure
5 1 (0.58%) HDFS
5 1 (0.58%) Hyper-V
5 1 (0.58%) KVM
5 1 (0.58%) OpenAM
5 1 (0.58%) OpenDJ
Systems Management
1 10 (5.81%) Kubernetes
2 8 (4.65%) Kibana
3 7 (4.07%) Ansible
3 7 (4.07%) logstash
4 3 (1.74%) Puppet
4 3 (1.74%) Single Sign-On
5 2 (1.16%) Grafana
5 2 (1.16%) Opscode Chef
5 2 (1.16%) Prometheus
5 2 (1.16%) WebSphere Service Registry and Repository
6 1 (0.58%) Cacti
6 1 (0.58%) collectd
6 1 (0.58%) Graphite
6 1 (0.58%) Icinga
6 1 (0.58%) Netcool
6 1 (0.58%) OpenNMS
6 1 (0.58%) Salt
6 1 (0.58%) SCCM
6 1 (0.58%) SCOM
6 1 (0.58%) ZABBIX
Vendors
1 14 (8.14%) Microsoft
2 13 (7.56%) Oracle
3 9 (5.23%) Atlassian
4 8 (4.65%) Google
5 7 (4.07%) Splunk
6 4 (2.33%) Cadence
6 4 (2.33%) IBM
6 4 (2.33%) Kony
7 3 (1.74%) hybris
8 2 (1.16%) AppDynamics
8 2 (1.16%) Hortonworks
8 2 (1.16%) Rackspace
8 2 (1.16%) VMware
9 1 (0.58%) Adobe
9 1 (0.58%) BMC
9 1 (0.58%) Cisco
9 1 (0.58%) Ericsson
9 1 (0.58%) Huawei
9 1 (0.58%) Juniper
9 1 (0.58%) Salesforce.com