Period
to 27 June 2019

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 27 June 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
England > London
6 months to
27 Jun 2019
Same period 2018 Same period 2017
Rank 110 109 110
Rank change year-on-year -1 +1 +32
Contract jobs citing JSON 988 1,123 984
As % of all contract IT jobs advertised in London 2.45% 2.47% 2.44%
As % of the Libraries, Frameworks & Software Standards category 6.63% 6.65% 6.85%
Number of daily rates quoted 628 807 690
London median daily rate £500 £490 £475
Median daily rate % change year-on-year +2.04% +3.16% +5.56%
10th Percentile £379 £388 £350
90th Percentile £650 £625 £625
England median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 10 0 5
London median hourly rate £75.00 - £22.50
10th Percentile £33.63 - £19.25
90th Percentile £122.50 - £27.15
England median hourly rate £55.00 £45.00 £36.00
% change year-on-year +22.22% +25.00% -27.27%

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 14,911 16,895 14,375
As % of all contract IT jobs advertised in London 36.96% 37.20% 35.65%
Number of daily rates quoted 11,135 12,885 10,701
London median daily rate £525 £510 £480
Median daily rate % change year-on-year +2.94% +6.25% +3.23%
10th Percentile £375 £363 £338
90th Percentile £675 £669 £638
England median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 71 119 101
London median hourly rate £45.00 £43.92 £43.25
Median hourly rate % change year-on-year +2.47% +1.54% +27.21%
10th Percentile £32.50 £19.94 £19.44
90th Percentile £122.50 £80.00 £54.38
England median hourly rate £44.00 £42.13 £41.25
% change year-on-year +4.45% +2.12% +10.00%

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 27 June 2019.

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
Contractor Hourly Rate Histogram in London

The hourly rate distribution of IT jobs citing JSON in London over the 6 months to 27 June 2019.

Contractor hourly rate histogram 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 27 June 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
Central London +5 206 £525 +5.00% 11
South London -1 53 £475 - 1
West London 0 41 £431 -8.24% 2
East London +5 39 £525 +2.44% 2
North London -6 4 £270 -
JSON
England

For the 6 months to 27 June 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 London region with a requirement for JSON.

1 545 (55.16%) Agile Software Development
2 418 (42.31%) JavaScript
3 369 (37.35%) Java
4 368 (37.25%) REST
5 338 (34.21%) XML
6 323 (32.69%) HTML
7 278 (28.14%) CSS
8 276 (27.94%) SQL
9 272 (27.53%) Git (software)
10 235 (23.79%) DevOps
11 234 (23.68%) Jenkins
12 229 (23.18%) SOAP
13 225 (22.77%) TDD
14 222 (22.47%) Scrum
15 219 (22.17%) Web Services
16 217 (21.96%) Microsoft Azure
17 216 (21.86%) Linux
18 212 (21.46%) Microservices
19 198 (20.04%) Python
20 196 (19.84%) Amazon AWS
21 195 (19.74%) RESTful
22 173 (17.51%) Test Automation
23 170 (17.21%) Finance
24 169 (17.11%) .NET
24 169 (17.11%) SQL Server
25 164 (16.60%) C#
26 159 (16.09%) Continuous Integration
27 153 (15.49%) HTML5
28 150 (15.18%) Docker
29 145 (14.68%) AngularJS

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 79 (8.00%) Confluence
2 67 (6.78%) Elasticsearch
3 61 (6.17%) SharePoint
4 56 (5.67%) Apache
5 25 (2.53%) Tomcat
6 24 (2.43%) Cloud Foundry
7 20 (2.02%) Apache Spark
8 18 (1.82%) JBoss
8 18 (1.82%) OpenStack
9 17 (1.72%) nginx
10 14 (1.42%) GeoServer
10 14 (1.42%) Mule
10 14 (1.42%) WebSphere
11 13 (1.32%) CMS
12 11 (1.11%) WebLogic
13 10 (1.01%) Anypoint
14 9 (0.91%) Magnolia
15 8 (0.81%) Apache Solr
16 6 (0.61%) ArcGIS
16 6 (0.61%) Oracle SOA Suite
Applications
1 19 (1.92%) Microsoft Excel
2 7 (0.71%) Photoshop
3 6 (0.61%) Adobe Illustrator
3 6 (0.61%) Microsoft Office
3 6 (0.61%) MS Visio
3 6 (0.61%) Sketch
4 4 (0.40%) Chatbot
5 2 (0.20%) Microsoft PowerPoint
6 1 (0.10%) InVision
6 1 (0.10%) UXPin
Business Applications
1 19 (1.92%) Dynamics CRM
2 7 (0.71%) Distributed Ledger
2 7 (0.71%) Dynamics AX
2 7 (0.71%) Dynamics NAV
3 5 (0.51%) BusinessWorks
4 4 (0.40%) Oracle BPM
5 3 (0.30%) Salesforce.com CRM
6 2 (0.20%) Payment Gateway
7 1 (0.10%) Eloqua
7 1 (0.10%) Magento
7 1 (0.10%) Oracle EBS
Cloud Services
1 217 (21.96%) Microsoft Azure
2 196 (19.84%) Amazon AWS
3 67 (6.78%) GitHub
4 59 (5.97%) IaaS
5 56 (5.67%) PaaS
6 42 (4.25%) Amazon EC2
7 41 (4.15%) Amazon S3
8 39 (3.95%) Amazon SQS
9 36 (3.64%) Dynamics 365
10 35 (3.54%) AWS CloudFormation
10 35 (3.54%) Office 365
11 32 (3.24%) Power Platform
12 29 (2.94%) Google Cloud Platform
13 27 (2.73%) Amazon CloudWatch
14 24 (2.43%) SaaS
14 24 (2.43%) Virtual Private Cloud
15 22 (2.23%) Amazon Glacier
15 22 (2.23%) AWS CloudTrail
16 21 (2.13%) Serverless
17 18 (1.82%) OpenShift
Communications & Networking
1 67 (6.78%) HTTP
2 26 (2.63%) Firewall
3 13 (1.32%) VPN
4 12 (1.21%) TCP/IP
5 11 (1.11%) Network Security
6 9 (0.91%) FTP
6 9 (0.91%) HTTPS
6 9 (0.91%) LAN
6 9 (0.91%) WAN
7 8 (0.81%) DNS
7 8 (0.81%) VLAN
8 6 (0.61%) BGP
8 6 (0.61%) Cisco Nexus
8 6 (0.61%) Internet
8 6 (0.61%) OSPF
8 6 (0.61%) SSL
9 5 (0.51%) Wireshark
10 4 (0.40%) Cisco ASA
10 4 (0.40%) F5 BIG-IP GTM
10 4 (0.40%) F5 BIG-IP LTM
Database & Business Intelligence
1 169 (17.11%) SQL Server
2 118 (11.94%) Relational Database
3 112 (11.34%) NoSQL
4 105 (10.63%) PostgreSQL
5 96 (9.72%) MySQL
6 94 (9.51%) MongoDB
7 56 (5.67%) Big Data
8 45 (4.55%) Amazon RDS
8 45 (4.55%) Apache Cassandra
9 40 (4.05%) Data Warehouse
10 32 (3.24%) Power BI
11 30 (3.04%) Amazon DynamoDB
12 23 (2.33%) SQL Server Integration Services
13 22 (2.23%) RDBMS
14 21 (2.13%) SQL Server Reporting Services
15 20 (2.02%) Oracle Database
16 19 (1.92%) HBase
17 17 (1.72%) OLAP
18 16 (1.62%) Redis
19 13 (1.32%) Neo4j
Development Applications
1 272 (27.53%) Git (software)
2 234 (23.68%) Jenkins
3 118 (11.94%) JIRA
4 77 (7.79%) Visual Studio Team System
5 57 (5.77%) Maven
6 56 (5.67%) Subversion
7 53 (5.36%) Selenium
8 52 (5.26%) JUnit
9 50 (5.06%) Team Foundation Server
10 49 (4.96%) Bitbucket
11 42 (4.25%) TeamCity
12 34 (3.44%) Visual Studio
13 32 (3.24%) Cucumber
13 32 (3.24%) Sonatype Nexus
14 30 (3.04%) Eclipse
15 21 (2.13%) SoapUI
16 19 (1.92%) CruiseControl
16 19 (1.92%) SonarQube
17 18 (1.82%) Android Studio
17 18 (1.82%) Jasmine
General
1 170 (17.21%) Finance
2 88 (8.91%) Banking
3 39 (3.95%) Marketing
4 28 (2.83%) Investment Banking
5 26 (2.63%) Retail
6 23 (2.33%) Legal
7 22 (2.23%) Law
8 20 (2.02%) Front Office
9 18 (1.82%) Games
10 15 (1.52%) Retail Banking
11 11 (1.11%) Financial Institution
12 10 (1.01%) Publishing
13 9 (0.91%) Electronics
13 9 (0.91%) Manufacturing
14 8 (0.81%) French Language
14 8 (0.81%) Telecoms
15 7 (0.71%) Advertising
16 5 (0.51%) General Ledger
17 3 (0.30%) Back Office
17 3 (0.30%) Pharmaceutical
Job Titles
1 597 (60.43%) Developer
2 132 (13.36%) Java Developer
3 79 (8.00%) Architect
4 75 (7.59%) DevOps Engineer
5 68 (6.88%) Senior Developer
6 47 (4.76%) Full Stack Developer
7 45 (4.55%) Analyst
8 43 (4.35%) Front End Developer (Client-Side Developer)
9 42 (4.25%) React Developer
10 41 (4.15%) Azure DevOps
10 41 (4.15%) Azure Engineer
11 39 (3.95%) .NET Developer
12 36 (3.64%) Azure DevOps Engineer
13 31 (3.14%) Tester
14 29 (2.94%) Android Developer
15 28 (2.83%) C# Developer
15 28 (2.83%) iOS Developer
15 28 (2.83%) JavaScript Developer
16 27 (2.73%) Automation Tester
17 24 (2.43%) UI Developer
Libraries, Frameworks & Software Standards
1 368 (37.25%) REST
2 338 (34.21%) XML
3 323 (32.69%) HTML
4 278 (28.14%) CSS
5 229 (23.18%) SOAP
6 219 (22.17%) Web Services
7 195 (19.74%) RESTful
8 169 (17.11%) .NET
9 153 (15.49%) HTML5
10 145 (14.68%) AngularJS
11 125 (12.65%) Spring
12 111 (11.23%) Node.js
13 108 (10.93%) jQuery
14 94 (9.51%) Kafka
15 87 (8.81%) React
16 80 (8.10%) CSS3
17 72 (7.29%) .NET Framework
17 72 (7.29%) ASP.NET
18 70 (7.09%) ASP.NET Web API
19 64 (6.48%) Spring Boot
Miscellaneous
1 87 (8.81%) Mobile App
2 58 (5.87%) User Experience
3 51 (5.16%) Analytical Skills
4 41 (4.15%) Data Structures
5 39 (3.95%) Greenfield Project
6 30 (3.04%) Linux Command Line
7 28 (2.83%) Enterprise Software
8 19 (1.92%) Replication
9 15 (1.52%) Data Centre
9 15 (1.52%) Self-Motivation
10 14 (1.42%) Algorithms
11 10 (1.01%) Enterprise Cloud
11 10 (1.01%) PKI
12 9 (0.91%) Cloud Native
12 9 (0.91%) Robotics
12 9 (0.91%) W3C
13 7 (0.71%) N-Tier
13 7 (0.71%) Over-the-Top Content
13 7 (0.71%) Reference Data
13 7 (0.71%) Taxonomies
Operating Systems
1 216 (21.86%) Linux
2 61 (6.17%) Windows
3 54 (5.47%) Android
4 47 (4.76%) Unix
5 40 (4.05%) Apple iOS
6 26 (2.63%) Red Hat Enterprise Linux
7 15 (1.52%) Windows Server
8 12 (1.21%) CentOS
9 8 (0.81%) Fedora
10 7 (0.71%) Ubuntu
11 2 (0.20%) VMS
11 2 (0.20%) Windows Server 2012
12 1 (0.10%) Mac OS
Processes & Methodologies
1 545 (55.16%) Agile Software Development
2 235 (23.79%) DevOps
3 225 (22.77%) TDD
4 222 (22.47%) Scrum
5 212 (21.46%) Microservices
6 173 (17.51%) Test Automation
7 159 (16.09%) Continuous Integration
8 115 (11.64%) Data Modelling
9 112 (11.34%) MVC
10 103 (10.43%) BDD
11 87 (8.81%) Open Source
12 81 (8.20%) Front End Development
13 78 (7.89%) Analytics
14 76 (7.69%) SDLC
14 76 (7.69%) Web Development
15 74 (7.49%) Continuous Delivery
16 72 (7.29%) ETL
16 72 (7.29%) Kanban
17 69 (6.98%) OO
18 68 (6.88%) Unit Testing
Programming Languages
1 418 (42.31%) JavaScript
2 369 (37.35%) Java
3 276 (27.94%) SQL
4 198 (20.04%) Python
5 164 (16.60%) C#
6 77 (7.79%) Java 8
7 76 (7.69%) PowerShell
8 65 (6.58%) Ruby
9 59 (5.97%) Bash Shell
10 52 (5.26%) Scala
11 39 (3.95%) Shell Script
12 37 (3.74%) Perl
13 34 (3.44%) PL/SQL
13 34 (3.44%) TypeScript
14 28 (2.83%) Groovy
15 26 (2.63%) C++
16 24 (2.43%) ES6
17 23 (2.33%) T-SQL
18 22 (2.23%) PHP
19 21 (2.13%) Kotlin
Qualifications
1 123 (12.45%) Security Cleared
2 99 (10.02%) SC Cleared
3 74 (7.49%) Degree
4 17 (1.72%) Master's Degree
5 16 (1.62%) Computer Science Degree
6 15 (1.52%) BPSS Clearance
7 14 (1.42%) CTC Cleared
8 11 (1.11%) DV Cleared
9 9 (0.91%) Cisco Certification
10 8 (0.81%) AWS Certification
10 8 (0.81%) PhD
11 6 (0.61%) CISSP
12 5 (0.51%) CCIE
12 5 (0.51%) RHCE
12 5 (0.51%) SSCP
13 3 (0.30%) CHECK Team Member
13 3 (0.30%) DBS Check
13 3 (0.30%) Numerate Degree
14 2 (0.20%) CCNA
14 2 (0.20%) Microsoft Certification
Quality Assurance & Compliance
1 50 (5.06%) QA
2 39 (3.95%) Data Quality
3 8 (0.81%) GDPR
4 3 (0.30%) WCAG
5 2 (0.20%) PSD2
5 2 (0.20%) Solvency II
6 1 (0.10%) Disclosure Scotland
6 1 (0.10%) ISO/IEC 27001
6 1 (0.10%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
6 1 (0.10%) NIST
6 1 (0.10%) PCI DSS
6 1 (0.10%) PMO
6 1 (0.10%) SEPA
System Software
1 150 (15.18%) Docker
2 47 (4.76%) Active Directory
3 18 (1.82%) Virtual Machines
4 6 (0.61%) Apache ZooKeeper
4 6 (0.61%) HDFS
4 6 (0.61%) VMware Infrastructure
5 4 (0.40%) Postfix
6 3 (0.30%) Firmware
6 3 (0.30%) VMware ESXi
6 3 (0.30%) VMware Workstation
6 3 (0.30%) vSphere
7 2 (0.20%) Hyper-V
7 2 (0.20%) ISA Server
8 1 (0.10%) Apache Flume
8 1 (0.10%) OpenAM
8 1 (0.10%) OpenDJ
8 1 (0.10%) zsh
Systems Management
1 98 (9.92%) Kubernetes
2 56 (5.67%) Ansible
3 40 (4.05%) Opscode Chef
4 37 (3.74%) Puppet
5 30 (3.04%) Terraform
6 13 (1.32%) Kibana
7 8 (0.81%) Prometheus
8 6 (0.61%) Single Sign-On
9 5 (0.51%) logstash
9 5 (0.51%) Suricata
10 4 (0.40%) Control-M
10 4 (0.40%) yum
11 3 (0.30%) Grafana
11 3 (0.30%) Packer
11 3 (0.30%) Rancher
11 3 (0.30%) vCenter Server
12 2 (0.20%) CloudHub
12 2 (0.20%) Enterprise Manager Cloud Control
12 2 (0.20%) Stealthwatch
12 2 (0.20%) WSUS
Vendors
1 135 (13.66%) Oracle
2 121 (12.25%) Microsoft
3 38 (3.85%) Google
4 33 (3.34%) MuleSoft
5 27 (2.73%) Salesforce.com
6 25 (2.53%) Splunk
7 24 (2.43%) Red Hat
8 21 (2.13%) SAP
9 20 (2.02%) hybris
9 20 (2.02%) IBM
10 17 (1.72%) Adobe
10 17 (1.72%) Atlassian
10 17 (1.72%) TIBCO
11 15 (1.52%) Tableau
12 12 (1.21%) EXASOL
13 11 (1.11%) F5
13 11 (1.11%) Informatica
13 11 (1.11%) Palo Alto
13 11 (1.11%) Xamarin
14 9 (0.91%) Cisco