Period
to 15 August 2018

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 15 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
England > London
6 months to
15 Aug 2018
Same period 2017 Same period 2016
Rank 115 109 136
Rank change year-on-year -6 +27 -17
Contract jobs citing JSON 1,125 1,059 880
As % of all contract IT jobs advertised in London 2.47% 2.48% 1.94%
As % of the Libraries, Frameworks & Software Standards category 6.41% 6.81% 5.85%
Number of daily rates quoted 815 767 683
London median daily rate £488 £475 £450
Median daily rate % change year-on-year +2.63% +5.56% +5.88%
10th Percentile £375 £363 £325
90th Percentile £625 £625 £575
England median daily rate £475 £463 £425
% change year-on-year +2.70% +8.82% +6.25%
Number of hourly rates quoted 0 6 1
London median hourly rate - £22.50 £51.00
Median hourly rate % change year-on-year - -55.88% +158.69%
England median hourly rate £45.00 £37.50 £45.00
% change year-on-year +20.00% -16.67% +28.57%

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 17,558 15,546 15,039
As % of all contract IT jobs advertised in London 38.58% 36.48% 33.13%
Number of daily rates quoted 13,354 11,545 11,335
London median daily rate £513 £500 £463
Median daily rate % change year-on-year +2.50% +8.11% +2.78%
10th Percentile £363 £350 £313
90th Percentile £675 £650 £625
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +6.25%
Number of hourly rates quoted 101 102 57
London median hourly rate £43.50 £40.00 £40.00
Median hourly rate % change year-on-year +8.75% - -
10th Percentile £20.37 £19.03 £18.72
90th Percentile £77.50 £52.95 £57.13
England median hourly rate £41.53 £40.00 £36.50
% change year-on-year +3.83% +9.59% -1.35%

JSON
Job Vacancy Trend in London

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

Job vacancy trend for JSON in London

JSON
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for JSON in London

JSON
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing JSON in London over the 6 months to 15 August 2018.

Contractor daily rate histogram for JSON in London

JSON
Contractor Hourly Rate Trend in London

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

Contractor 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 15 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
Central London +7 225 £500 +5.26% 57
South London +31 87 £475 -5.00% 4
East London -6 39 £513 -2.38% 8
West London -29 37 £463 +5.71% 36
North London -5 1 - -
JSON
England

For the 6 months to 15 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 London region with a requirement for JSON.

1 559 (49.69%) Agile Software Development
2 487 (43.29%) Java
3 466 (41.42%) REST
4 439 (39.02%) JavaScript
5 438 (38.93%) XML
6 367 (32.62%) TDD
6 367 (32.62%) Git (software)
7 326 (28.98%) Web Services
8 317 (28.18%) HTML
9 276 (24.53%) CSS
10 249 (22.13%) Scrum
11 242 (21.51%) AngularJS
12 237 (21.07%) Finance
13 235 (20.89%) SQL
14 233 (20.71%) DevOps
15 220 (19.56%) Node.js
16 212 (18.84%) Continuous Integration
17 206 (18.31%) Amazon AWS
18 201 (17.87%) Jenkins
19 193 (17.16%) .NET
19 193 (17.16%) Microservices
20 189 (16.80%) RESTful
21 187 (16.62%) C#
22 183 (16.27%) SOAP
23 182 (16.18%) JIRA
24 181 (16.09%) Docker
25 174 (15.47%) HTML5
26 172 (15.29%) Microsoft Azure
27 168 (14.93%) React
28 160 (14.22%) SQL Server

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 97 (8.62%) Confluence
2 72 (6.40%) Elasticsearch
3 63 (5.60%) Tomcat
4 47 (4.18%) Apache Spark
5 34 (3.02%) Apache
5 34 (3.02%) IIS
6 29 (2.58%) WebLogic
7 27 (2.40%) CMS
8 24 (2.13%) Oracle SOA Suite
9 17 (1.51%) Apache Solr
10 16 (1.42%) JBoss
11 15 (1.33%) WebSphere
12 14 (1.24%) Adobe Experience Manager
12 14 (1.24%) OpenStack
13 11 (0.98%) SharePoint
14 9 (0.80%) nginx
15 7 (0.62%) Mule
15 7 (0.62%) Oracle Service Bus
16 6 (0.53%) Sitecore CMS
17 5 (0.44%) Jetty
Applications
1 24 (2.13%) Microsoft Excel
2 11 (0.98%) MS Visio
3 8 (0.71%) Microsoft Office
4 7 (0.62%) Microsoft Project
4 7 (0.62%) Photoshop
5 5 (0.44%) Adobe Creative Suite
6 4 (0.36%) Blender
6 4 (0.36%) Maya
7 2 (0.18%) Adobe Illustrator
7 2 (0.18%) CATIA
7 2 (0.18%) InVision
8 1 (0.089%) InfoPath
8 1 (0.089%) Microsoft PowerPoint
8 1 (0.089%) SketchUp
8 1 (0.089%) Spreadsheet
Business Applications
1 5 (0.44%) Oracle EBS
2 4 (0.36%) Dynamics CRM
3 2 (0.18%) BusinessWorks
3 2 (0.18%) DELMIA
3 2 (0.18%) ENOVIA
3 2 (0.18%) Payment Gateway
3 2 (0.18%) Summit
4 1 (0.089%) Dynamics GP
4 1 (0.089%) NetSuite
4 1 (0.089%) Oracle 11i
4 1 (0.089%) Oracle Applications
4 1 (0.089%) Oracle EBS R12
4 1 (0.089%) Oracle ERP
4 1 (0.089%) Oracle Financials
4 1 (0.089%) Oracle iProcurement
4 1 (0.089%) Pivotal CRM
4 1 (0.089%) R3 Corda
4 1 (0.089%) Salesforce.com CRM
4 1 (0.089%) SAP PM
4 1 (0.089%) ScheduALL
Cloud Services
1 206 (18.31%) Amazon AWS
2 172 (15.29%) Microsoft Azure
3 74 (6.58%) PaaS
4 66 (5.87%) Amazon S3
5 57 (5.07%) npm
6 43 (3.82%) IaaS
7 30 (2.67%) Amazon EC2
8 27 (2.40%) GitHub
9 25 (2.22%) Serverless
10 19 (1.69%) Amazon SQS
11 17 (1.51%) BrowserStack
12 16 (1.42%) Amazon CloudWatch
12 16 (1.42%) AWS Lambda
13 15 (1.33%) Virtual Private Cloud
14 14 (1.24%) AWS CloudFormation
14 14 (1.24%) Google Cloud Platform
15 13 (1.16%) OpenShift
16 12 (1.07%) SaaS
17 11 (0.98%) Amazon EMR
17 11 (0.98%) Heroku
Communications & Networking
1 95 (8.44%) HTTP
2 20 (1.78%) DNS
3 18 (1.60%) Internet
4 16 (1.42%) Firewall
4 16 (1.42%) HTTPS
5 15 (1.33%) FTP
6 12 (1.07%) Cisco ASA
6 12 (1.07%) TCP/IP
6 12 (1.07%) VPN
7 11 (0.98%) AMQP
8 10 (0.89%) SSL
9 9 (0.80%) X.509
10 6 (0.53%) IPsec
10 6 (0.53%) MQTT
10 6 (0.53%) Network Security
11 5 (0.44%) BIG-IP
12 4 (0.36%) BGP
12 4 (0.36%) Ethernet
12 4 (0.36%) MPLS
12 4 (0.36%) WAN
Database & Business Intelligence
1 160 (14.22%) SQL Server
2 120 (10.67%) PostgreSQL
3 115 (10.22%) Relational Database
4 86 (7.64%) Hadoop
5 83 (7.38%) Big Data
6 80 (7.11%) MongoDB
7 78 (6.93%) NoSQL
8 60 (5.33%) MySQL
9 51 (4.53%) HBase
10 33 (2.93%) Cosmos DB
11 32 (2.84%) Data Warehouse
12 31 (2.76%) SQL Server 2012
12 31 (2.76%) SQL Server 2016
13 27 (2.40%) RDBMS
14 25 (2.22%) Oracle Database
15 23 (2.04%) Amazon RDS
16 21 (1.87%) SQL Server 2014
17 18 (1.60%) DB2
18 17 (1.51%) Apache Hive
19 14 (1.24%) Amazon Redshift
Development Applications
1 367 (32.62%) Git (software)
2 201 (17.87%) Jenkins
3 182 (16.18%) JIRA
4 89 (7.91%) Subversion
5 82 (7.29%) Selenium
6 71 (6.31%) Visual Studio
7 69 (6.13%) JUnit
7 69 (6.13%) Maven
8 68 (6.04%) Cucumber
9 62 (5.51%) Visual Studio Team System
10 41 (3.64%) Team Foundation Server
11 39 (3.47%) Mercurial
12 38 (3.38%) webpack
13 37 (3.29%) Hudson
14 36 (3.20%) gulp
15 32 (2.84%) Gradle
16 29 (2.58%) Sublime Text
17 26 (2.31%) Babel
17 26 (2.31%) WebDriver
18 25 (2.22%) NUnit
General
1 237 (21.07%) Finance
2 103 (9.16%) Banking
3 36 (3.20%) Retail
4 28 (2.49%) Front Office
5 23 (2.04%) Legal
6 21 (1.87%) Investment Banking
7 19 (1.69%) Telecoms
8 16 (1.42%) Games
9 15 (1.33%) Advertising
10 13 (1.16%) Marketing
11 12 (1.07%) Financial Institution
12 8 (0.71%) Manufacturing
13 7 (0.62%) Publishing
14 6 (0.53%) Electronics
15 5 (0.44%) Retail Banking
16 4 (0.36%) Law
16 4 (0.36%) Spanish Language
17 3 (0.27%) Pharmaceutical
17 3 (0.27%) Polish Language
18 2 (0.18%) Russian Language
Job Titles
1 749 (66.58%) Developer
2 199 (17.69%) Java Developer
3 109 (9.69%) Architect
4 105 (9.33%) Senior Developer
5 80 (7.11%) .NET Developer
6 78 (6.93%) React Developer
7 71 (6.31%) JavaScript Developer
8 68 (6.04%) C# Developer
9 62 (5.51%) Front End Developer (Client-Side Developer)
10 59 (5.24%) Applications Developer
11 48 (4.27%) Full Stack Developer
12 46 (4.09%) DevOps Engineer
13 45 (4.00%) Node.js Developer
14 43 (3.82%) C# .NET Developer
15 42 (3.73%) Android Developer
16 41 (3.64%) Agile Developer
17 40 (3.56%) Senior Java Developer
18 39 (3.47%) UI Developer
19 36 (3.20%) Angular Developer
20 34 (3.02%) Azure DevOps
Libraries, Frameworks & Software Standards
1 466 (41.42%) REST
2 438 (38.93%) XML
3 326 (28.98%) Web Services
4 317 (28.18%) HTML
5 276 (24.53%) CSS
6 242 (21.51%) AngularJS
7 220 (19.56%) Node.js
8 193 (17.16%) .NET
9 189 (16.80%) RESTful
10 183 (16.27%) SOAP
11 174 (15.47%) HTML5
12 168 (14.93%) React
13 140 (12.44%) Spring
14 136 (12.09%) jQuery
15 131 (11.64%) CSS3
16 92 (8.18%) RabbitMQ
17 84 (7.47%) J2EE
18 83 (7.38%) Sass
19 79 (7.02%) Hibernate
20 77 (6.84%) Kafka
Miscellaneous
1 139 (12.36%) User Experience
2 107 (9.51%) Mobile App
3 81 (7.20%) Greenfield Project
4 35 (3.11%) Fintech
5 32 (2.84%) Self-Motivation
6 31 (2.76%) Computer Science
7 27 (2.40%) Data Structures
8 20 (1.78%) Algorithms
8 20 (1.78%) Analytical Skills
9 17 (1.51%) Animation
9 17 (1.51%) Enterprise Software
9 17 (1.51%) Virtual Team
10 16 (1.42%) Data Centre
11 14 (1.24%) Video on Demand
12 13 (1.16%) PKI
12 13 (1.16%) Video\Live Streaming
13 12 (1.07%) Derivative
13 12 (1.07%) Over-the-Top Content
13 12 (1.07%) Replication
14 9 (0.80%) Client/Server
Operating Systems
1 141 (12.53%) Linux
2 76 (6.76%) Android
3 72 (6.40%) Windows
4 69 (6.13%) Apple iOS
5 46 (4.09%) Unix
6 31 (2.76%) Windows Server
7 15 (1.33%) Windows Server 2012
8 14 (1.24%) Red Hat Enterprise Linux
9 9 (0.80%) CentOS
10 6 (0.53%) Debian
11 5 (0.44%) Mac OS X
12 4 (0.36%) Ubuntu
13 3 (0.27%) CoreOS
14 2 (0.18%) HPUX
14 2 (0.18%) Solaris
15 1 (0.089%) AIX
15 1 (0.089%) SUSE
15 1 (0.089%) SUSE Linux Enterprise Server
15 1 (0.089%) Windows Server 2008
Processes & Methodologies
1 559 (49.69%) Agile Software Development
2 367 (32.62%) TDD
3 249 (22.13%) Scrum
4 233 (20.71%) DevOps
5 212 (18.84%) Continuous Integration
6 193 (17.16%) Microservices
7 153 (13.60%) Test Automation
8 147 (13.07%) BDD
9 137 (12.18%) MVC
10 132 (11.73%) OO
11 114 (10.13%) Front End Development
12 107 (9.51%) SOA
13 91 (8.09%) Pair Programming
14 79 (7.02%) Open Source
15 78 (6.93%) Data Modelling
16 72 (6.40%) Digital Transformation Programme
17 67 (5.96%) OOP
18 63 (5.60%) Problem-Solving
19 61 (5.42%) Kanban
19 61 (5.42%) Multithreading
Programming Languages
1 487 (43.29%) Java
2 439 (39.02%) JavaScript
3 235 (20.89%) SQL
4 187 (16.62%) C#
5 109 (9.69%) Python
6 102 (9.07%) Java 8
7 75 (6.67%) Ruby
8 72 (6.40%) PowerShell
9 67 (5.96%) Scala
10 56 (4.98%) ES6
11 49 (4.36%) Groovy
12 35 (3.11%) Bash Shell
12 35 (3.11%) PHP
13 34 (3.02%) C++
14 28 (2.49%) JSX
14 28 (2.49%) TypeScript
15 25 (2.22%) PL/SQL
16 24 (2.13%) Perl
16 24 (2.13%) XPath
17 21 (1.87%) Shell Script
Qualifications
1 95 (8.44%) Security Cleared
2 83 (7.38%) SC Cleared
3 56 (4.98%) Degree
4 24 (2.13%) BPSS Clearance
5 16 (1.42%) DV Cleared
6 10 (0.89%) Computer Science Degree
7 4 (0.36%) AWS Certification
8 3 (0.27%) A+ Certification
8 3 (0.27%) CCIE
8 3 (0.27%) Cisco Certification
8 3 (0.27%) ISEB
9 2 (0.18%) CCNP
9 2 (0.18%) CISSP
9 2 (0.18%) PMI Certification
9 2 (0.18%) PMP
9 2 (0.18%) SSCP
9 2 (0.18%) Sun Certification
10 1 (0.089%) Numerate Degree
10 1 (0.089%) TOGAF Certification
Quality Assurance & Compliance
1 42 (3.73%) QA
2 18 (1.60%) Data Quality
3 8 (0.71%) GDPR
3 8 (0.71%) PSD2
4 7 (0.62%) PMO
5 6 (0.53%) GCP
6 5 (0.44%) Dodd-Frank
6 5 (0.44%) EMIR
6 5 (0.44%) MiFID
7 4 (0.36%) Disclosure Scotland
8 3 (0.27%) ISO 20022
9 2 (0.18%) HL7
10 1 (0.089%) PCI DSS
System Software
1 181 (16.09%) Docker
2 57 (5.07%) Active Directory
3 13 (1.16%) HDFS
4 8 (0.71%) Apache ZooKeeper
4 8 (0.71%) VMware Infrastructure
5 4 (0.36%) XenApp
6 3 (0.27%) Microsoft App-V
6 3 (0.27%) OpenAM
6 3 (0.27%) OpenDJ
6 3 (0.27%) Virtual Machines
6 3 (0.27%) XenDesktop
7 1 (0.089%) Apache Flume
7 1 (0.089%) Oracle RAC
7 1 (0.089%) vSphere
Systems Management
1 43 (3.82%) Ansible
2 39 (3.47%) Puppet
3 33 (2.93%) Kubernetes
4 31 (2.76%) Terraform
5 13 (1.16%) Kibana
6 11 (0.98%) Opscode Chef
7 10 (0.89%) logstash
8 8 (0.71%) Oozie
9 7 (0.62%) Docker Swarm
10 6 (0.53%) Single Sign-On
11 5 (0.44%) Control-M
11 5 (0.44%) Grafana
11 5 (0.44%) ITRS Geneos
11 5 (0.44%) Prometheus
11 5 (0.44%) Rancher
11 5 (0.44%) Salt
12 4 (0.36%) SCCM
12 4 (0.36%) WebSphere Service Registry and Repository
12 4 (0.36%) WSUS
13 3 (0.27%) Mesos
Vendors
1 103 (9.16%) Microsoft
2 81 (7.20%) Oracle
3 52 (4.62%) Google
4 34 (3.02%) SAP
5 33 (2.93%) Tableau
6 30 (2.67%) IBM
7 28 (2.49%) Salesforce.com
8 24 (2.13%) Cloudera
9 20 (1.78%) MuleSoft
10 18 (1.60%) Atlassian
11 16 (1.42%) Adobe
11 16 (1.42%) Cisco
11 16 (1.42%) Hortonworks
12 14 (1.24%) Splunk
13 13 (1.16%) Apigee
13 13 (1.16%) Citrix
14 11 (0.98%) Talend
15 10 (0.89%) Informatica
15 10 (0.89%) VMware
16 9 (0.80%) Perforce