Period
to 23 October 2019

The following table provides summary statistics for contract job vacancies 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 23 October 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
UK
6 months to
23 Oct 2019
Same period 2018 Same period 2017
Rank 109 110 94
Rank change year-on-year +1 -16 +6
Contract jobs citing JSON 1,878 2,444 2,635
As % of all contract IT jobs advertised in the UK 2.22% 2.36% 2.63%
As % of the Libraries, Frameworks & Software Standards category 7.19% 6.78% 8.14%
Number of daily rates quoted 1,167 1,667 1,799
UK median daily rate £488 £475 £450
Median daily rate % change year-on-year +2.63% +5.56% +5.88%
10th Percentile £345 £346 £319
90th Percentile £638 £610 £600
UK excluding London median daily rate £450 £450 £425
% change year-on-year - +5.88% +6.25%
Number of hourly rates quoted 22 12 37
UK median hourly rate £53.75 £35.00 £45.00
Median hourly rate % change year-on-year +53.57% -22.22% +5.88%
10th Percentile £22.63 £29.15 £18.21
90th Percentile £122.50 £60.76 £63.75
UK excluding London median hourly rate £52.25 £35.00 £45.00
% change year-on-year +49.29% -22.22% +5.88%

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 with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
UK
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 26,107 36,058 32,358
As % of all contract IT jobs advertised in the UK 30.82% 34.85% 32.29%
Number of daily rates quoted 18,145 25,401 22,729
UK median daily rate £498 £475 £450
Median daily rate % change year-on-year +4.74% +5.56% +5.88%
10th Percentile £338 £325 £313
90th Percentile £650 £638 £625
UK excluding London median daily rate £438 £425 £400
% change year-on-year +2.94% +6.25% +3.23%
Number of hourly rates quoted 281 316 369
UK median hourly rate £43.50 £41.57 £40.00
Median hourly rate % change year-on-year +4.64% +3.93% +6.67%
10th Percentile £20.26 £15.94 £18.40
90th Percentile £70.00 £59.38 £52.50
UK excluding London median hourly rate £42.50 £41.25 £40.40
% change year-on-year +3.03% +2.10% +12.23%

JSON
Job Vacancy Trend

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

Job vacancy trend for JSON in the UK

JSON
Contractor Daily Rate Trend

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

Contractor daily rate trend for JSON in the UK

JSON
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing JSON over the 6 months to 23 October 2019.

Contractor daily rate histogram for JSON in the UK

JSON
Contractor Hourly Rate Trend

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

Contractor hourly rate trend for JSON in the UK

JSON
Contractor Hourly Rate Histogram

The hourly rate distribution of IT jobs citing JSON over the 6 months to 23 October 2019.

Contractor hourly rate histogram for JSON in the UK

JSON
Top 17 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JSON within the UK over the 6 months to 23 October 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
England -12 1,648 £500 +5.26% 509
UK excluding London -12 976 £450 - 365
London +6 833 £525 +5.00% 188
South East -31 276 £450 -2.70% 115
North of England -16 188 £485 +19.02% 79
Midlands +12 155 £475 +8.57% 45
Scotland +45 146 £450 +4.35% 26
West Midlands +26 127 £475 +5.56% 27
South West -2 123 £450 +13.92% 42
Yorkshire +33 95 £500 +17.65% 26
North West -56 62 £450 +12.50% 44
East of England -43 54 £463 -11.90% 41
North East +14 31 £413 -8.33% 9
Wales +22 24 £415 +3.75% 15
East Midlands -17 20 £404 -2.12% 18
Channel Islands +2 8 - -
Northern Ireland +9 5 £450 - 3

For the 6 months to 23 October 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 with a requirement for JSON.

1 956 (50.91%) Agile Software Development
2 868 (46.22%) XML
3 714 (38.02%) Java
4 637 (33.92%) REST
5 632 (33.65%) JavaScript
6 571 (30.40%) SQL
7 492 (26.20%) Git (software)
8 473 (25.19%) HTML
9 457 (24.33%) Azure
10 444 (23.64%) CSS
11 436 (23.22%) Web Services
12 403 (21.46%) RESTful
13 402 (21.41%) Jenkins
14 396 (21.09%) DevOps
15 394 (20.98%) Microservices
16 366 (19.49%) Linux
17 351 (18.69%) SOAP
18 348 (18.53%) Scrum
19 344 (18.32%) C#
20 336 (17.89%) Test Automation
21 335 (17.84%) JIRA
22 333 (17.73%) .NET
23 328 (17.47%) SQL Server
24 323 (17.20%) Spring
25 322 (17.15%) AWS
26 318 (16.93%) TDD
27 315 (16.77%) Finance
28 297 (15.81%) AngularJS
29 289 (15.39%) Python
30 270 (14.38%) Docker

JSON
Co-occurring IT Skills 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
1 215 (11.45%) Confluence
2 84 (4.47%) Apache
3 73 (3.89%) SharePoint
4 63 (3.35%) JBoss
5 55 (2.93%) Elasticsearch
6 53 (2.82%) Tomcat
7 44 (2.34%) WebLogic
7 44 (2.34%) WebSphere
8 33 (1.76%) Mule
8 33 (1.76%) Oracle SOA Suite
9 30 (1.60%) Apache Spark
10 29 (1.54%) CMS
11 27 (1.44%) Cloud Foundry
12 25 (1.33%) MQSeries
13 24 (1.28%) GeoServer
14 19 (1.01%) IIS
15 18 (0.96%) Adobe Experience Manager
15 18 (0.96%) ArcGIS
16 16 (0.85%) nginx
17 14 (0.75%) BizTalk Server
Applications
1 17 (0.91%) Photoshop
2 16 (0.85%) GIMP
3 14 (0.75%) Microsoft Excel
4 13 (0.69%) MS Visio
5 7 (0.37%) Microsoft Office
6 4 (0.21%) Chatbot
7 3 (0.16%) Microsoft PowerPoint
8 1 (0.053%) Sketch
8 1 (0.053%) UXPin
Business Applications
1 31 (1.65%) Dynamics CRM
2 27 (1.44%) BusinessWorks
2 27 (1.44%) Sparx Enterprise Architect
3 14 (0.75%) Dynamics AX
4 10 (0.53%) Remedy ITSM
5 9 (0.48%) Dynamics NAV
6 8 (0.43%) Oracle BPM
7 6 (0.32%) Payment Gateway
8 5 (0.27%) NetSuite
9 2 (0.11%) Distributed Ledger
9 2 (0.11%) Magento
9 2 (0.11%) WebTrends
10 1 (0.053%) Adobe Campaign
10 1 (0.053%) Oracle EBS
10 1 (0.053%) Oracle Receivables
10 1 (0.053%) Oracle Retail
10 1 (0.053%) SAP CAR
10 1 (0.053%) SAP ERP
10 1 (0.053%) SAP Hybris
Cloud Services
1 457 (24.33%) Azure
2 322 (17.15%) AWS
3 173 (9.21%) GitHub
4 99 (5.27%) Power Platform
5 90 (4.79%) PaaS
6 89 (4.74%) IaaS
7 79 (4.21%) Serverless
8 66 (3.51%) GCP
9 63 (3.35%) SaaS
10 62 (3.30%) Azure Active Directory
11 48 (2.56%) Amazon EC2
11 48 (2.56%) Dynamics 365
12 47 (2.50%) Amazon S3
13 44 (2.34%) AWS CloudFormation
14 42 (2.24%) npm
15 41 (2.18%) Office 365
16 40 (2.13%) AWS Lambda
16 40 (2.13%) Google Analytics
16 40 (2.13%) Slack
17 39 (2.08%) OpenShift
Communications & Networking
1 136 (7.24%) HTTP
2 47 (2.50%) SSL
3 37 (1.97%) VPN
4 31 (1.65%) Internet
4 31 (1.65%) SSH
4 31 (1.65%) TCP/IP
5 21 (1.12%) DNS
6 18 (0.96%) FTP
6 18 (0.96%) SNMP
7 15 (0.80%) HTTPS
8 13 (0.69%) BGP
8 13 (0.69%) Firewall
8 13 (0.69%) OSPF
9 12 (0.64%) Intranet
10 11 (0.59%) DSL
10 11 (0.59%) ICMP
10 11 (0.59%) Telnet
11 9 (0.48%) Bluetooth
11 9 (0.48%) NFC
12 8 (0.43%) Unified Communications
Database & Business Intelligence
1 328 (17.47%) SQL Server
2 170 (9.05%) NoSQL
3 169 (9.00%) Relational Database
4 136 (7.24%) MySQL
5 132 (7.03%) MongoDB
6 129 (6.87%) PostgreSQL
7 94 (5.01%) Data Warehouse
8 91 (4.85%) Power BI
9 80 (4.26%) Big Data
10 60 (3.19%) Azure SQL Database
10 60 (3.19%) SQL Server Integration Services
11 49 (2.61%) RDBMS
12 43 (2.29%) SQL Server Reporting Services
13 40 (2.13%) Oracle Database
14 39 (2.08%) Data Lake
15 38 (2.02%) Amazon DynamoDB
16 37 (1.97%) Hadoop
17 35 (1.86%) Amazon RDS
17 35 (1.86%) Cosmos DB
18 32 (1.70%) DB2
Development Applications
1 492 (26.20%) Git (software)
2 402 (21.41%) Jenkins
3 335 (17.84%) JIRA
4 169 (9.00%) Maven
5 165 (8.79%) Selenium
6 163 (8.68%) JUnit
7 92 (4.90%) Cucumber
8 84 (4.47%) Eclipse
8 84 (4.47%) Sonatype Nexus
9 80 (4.26%) Visual Studio Team System
10 63 (3.35%) IntelliJ
10 63 (3.35%) Visual Studio
11 58 (3.09%) Gradle
12 56 (2.98%) Subversion
13 53 (2.82%) Mockito
14 52 (2.77%) Team Foundation Server
14 52 (2.77%) TeamCity
15 49 (2.61%) Bitbucket
16 47 (2.50%) gulp
17 46 (2.45%) Ant
General
1 315 (16.77%) Finance
2 131 (6.98%) Banking
3 115 (6.12%) Public Sector
4 48 (2.56%) Retail
5 47 (2.50%) Marketing
6 35 (1.86%) Telecoms
7 30 (1.60%) Back Office
7 30 (1.60%) Games
8 21 (1.12%) Legal
9 18 (0.96%) Financial Institution
10 16 (0.85%) Advertising
10 16 (0.85%) Law
11 15 (0.80%) Publishing
12 13 (0.69%) Front Office
12 13 (0.69%) Retail Banking
13 12 (0.64%) Electronics
13 12 (0.64%) Manufacturing
14 7 (0.37%) Investment Banking
14 7 (0.37%) Multimedia
14 7 (0.37%) Pharmaceutical
Job Titles
1 1,050 (55.91%) Developer
2 244 (12.99%) Java Developer
3 221 (11.77%) Architect
4 121 (6.44%) Senior Developer
5 107 (5.70%) DevOps Engineer
6 100 (5.32%) Front End Developer (Client-Side Developer)
7 85 (4.53%) Analyst
8 82 (4.37%) .NET Developer
9 75 (3.99%) React Developer
10 69 (3.67%) C# Developer
10 69 (3.67%) Consultant
11 64 (3.41%) Android Developer
12 63 (3.35%) Azure Engineer
12 63 (3.35%) Tester
13 56 (2.98%) Solutions Architect
14 54 (2.88%) Technical Architect
15 53 (2.82%) Cloud Engineer
16 51 (2.72%) Full Stack Developer
17 47 (2.50%) Angular Developer
18 46 (2.45%) Automation Tester
Libraries, Frameworks & Software Standards
1 868 (46.22%) XML
2 637 (33.92%) REST
3 473 (25.19%) HTML
4 444 (23.64%) CSS
5 436 (23.22%) Web Services
6 403 (21.46%) RESTful
7 351 (18.69%) SOAP
8 333 (17.73%) .NET
9 323 (17.20%) Spring
10 297 (15.81%) AngularJS
11 236 (12.57%) Node.js
12 228 (12.14%) HTML5
13 199 (10.60%) React
14 182 (9.69%) jQuery
15 148 (7.88%) CSS3
16 125 (6.66%) Spring Boot
17 118 (6.28%) Ajax
18 112 (5.96%) Hibernate
19 110 (5.86%) .NET Framework
20 104 (5.54%) ASP.NET
Miscellaneous
1 131 (6.98%) Analytical Skills
2 127 (6.76%) Mobile App
3 120 (6.39%) User Experience
4 74 (3.94%) Enterprise Software
5 53 (2.82%) Greenfield Project
6 52 (2.77%) Linux Command Line
7 43 (2.29%) Self-Motivation
8 35 (1.86%) PKI
9 32 (1.70%) Enterprise Cloud
10 29 (1.54%) Client/Server
11 24 (1.28%) Data Structures
12 22 (1.17%) Data Centre
12 22 (1.17%) Management Information System
12 22 (1.17%) Virtual Team
13 20 (1.06%) Cloud Native
14 15 (0.80%) Cyberthreat
14 15 (0.80%) Replication
15 14 (0.75%) Mobile Banking
16 13 (0.69%) Smartphone
17 12 (0.64%) CMDB
Operating Systems
1 366 (19.49%) Linux
2 185 (9.85%) Windows
3 112 (5.96%) Android
3 112 (5.96%) Unix
4 99 (5.27%) Apple iOS
5 82 (4.37%) Red Hat Enterprise Linux
6 23 (1.22%) Ubuntu
7 22 (1.17%) Windows Server
8 15 (0.80%) Mac OS
9 12 (0.64%) CentOS
10 9 (0.48%) Mac OS X
11 7 (0.37%) Debian
12 5 (0.27%) Windows 10
13 4 (0.21%) Windows 7
13 4 (0.21%) Windows 8
13 4 (0.21%) Windows Server 2008
14 3 (0.16%) AIX
14 3 (0.16%) Mac OS X Server
14 3 (0.16%) Solaris
14 3 (0.16%) VMS
Processes & Methodologies
1 956 (50.91%) Agile Software Development
2 396 (21.09%) DevOps
3 394 (20.98%) Microservices
4 348 (18.53%) Scrum
5 336 (17.89%) Test Automation
6 318 (16.93%) TDD
7 260 (13.84%) Continuous Integration
8 185 (9.85%) BDD
9 178 (9.48%) Problem-Solving
10 173 (9.21%) SOA
11 157 (8.36%) MVC
12 141 (7.51%) Open Source
13 139 (7.40%) Web Development
14 135 (7.19%) Unit Testing
15 134 (7.14%) Analytics
16 133 (7.08%) Kanban
17 127 (6.76%) Front End Development
18 120 (6.39%) SDLC
19 106 (5.64%) Continuous Delivery
19 106 (5.64%) Migration
Programming Languages
1 714 (38.02%) Java
2 632 (33.65%) JavaScript
3 571 (30.40%) SQL
4 344 (18.32%) C#
5 289 (15.39%) Python
6 186 (9.90%) PowerShell
7 152 (8.09%) Java 8
8 132 (7.03%) Bash Shell
9 131 (6.98%) Ruby
10 115 (6.12%) T-SQL
11 105 (5.59%) Perl
12 101 (5.38%) Scala
13 97 (5.17%) Shell Script
14 82 (4.37%) PL/SQL
15 79 (4.21%) TypeScript
16 72 (3.83%) PHP
17 56 (2.98%) Groovy
18 40 (2.13%) ES6
19 39 (2.08%) C++
20 35 (1.86%) Apple Swift
Qualifications
1 243 (12.94%) Security Cleared
2 141 (7.51%) SC Cleared
3 93 (4.95%) Degree
4 46 (2.45%) Computer Science Degree
5 37 (1.97%) AWS Certification
6 34 (1.81%) DV Cleared
7 28 (1.49%) RHCE
8 19 (1.01%) BPSS Clearance
9 14 (0.75%) CISSP
10 13 (0.69%) Cisco Certification
11 11 (0.59%) CCNP
11 11 (0.59%) CISA
11 11 (0.59%) CISM
11 11 (0.59%) CISMP
11 11 (0.59%) ISO 27001 Lead Implementer
11 11 (0.59%) ISSMP
11 11 (0.59%) Master's Degree
12 7 (0.37%) ISTQB
13 6 (0.32%) CCIE
13 6 (0.32%) CCNA
Quality Assurance & Compliance
1 83 (4.42%) QA
2 30 (1.60%) ISO/IEC 27001
3 23 (1.22%) PCI DSS
4 18 (0.96%) WCAG
5 16 (0.85%) NIST
6 15 (0.80%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
7 13 (0.69%) GDPR
7 13 (0.69%) MiFID
8 11 (0.59%) PMO
9 9 (0.48%) Data Quality
10 6 (0.32%) Disclosure Scotland
10 6 (0.32%) Sarbanes-Oxley
10 6 (0.32%) SLA
11 5 (0.27%) HMG Infosec
11 5 (0.27%) HMG Security Policy Framework
11 5 (0.27%) JSP 440
12 2 (0.11%) HL7
12 2 (0.11%) IFRS
13 1 (0.053%) NCSC
System Software
1 270 (14.38%) Docker
2 82 (4.37%) Active Directory
3 18 (0.96%) Virtual Machines
4 15 (0.80%) VMware Infrastructure
5 9 (0.48%) Hyper-V
6 8 (0.43%) HDFS
7 4 (0.21%) LXC
7 4 (0.21%) Postfix
7 4 (0.21%) VMware ESXi
8 3 (0.16%) Apache ZooKeeper
8 3 (0.16%) Firmware
8 3 (0.16%) NDS
8 3 (0.16%) NetIQ eDirectory
8 3 (0.16%) OpenAM
8 3 (0.16%) OpenDJ
8 3 (0.16%) VMware Workstation
8 3 (0.16%) vSphere
9 2 (0.11%) ISA Server
9 2 (0.11%) XenApp
10 1 (0.053%) Citrix Hypervisor
Systems Management
1 92 (4.90%) Kubernetes
2 75 (3.99%) Ansible
3 72 (3.83%) Opscode Chef
4 65 (3.46%) Puppet
5 64 (3.41%) Terraform
6 46 (2.45%) Kibana
7 38 (2.02%) Suricata
8 28 (1.49%) Grafana
9 21 (1.12%) WMI
10 16 (0.85%) Single Sign-On
11 15 (0.80%) Control-M
12 10 (0.53%) logstash
13 9 (0.48%) HP Quality Center
14 8 (0.43%) Istio
15 7 (0.37%) MIIS
15 7 (0.37%) Salt
16 6 (0.32%) Cisco Prime
17 5 (0.27%) Jamf Pro
18 4 (0.21%) Enterprise Manager Cloud Control
18 4 (0.21%) yum
Vendors
1 259 (13.79%) Microsoft
2 209 (11.13%) Oracle
3 131 (6.98%) Google
4 83 (4.42%) Splunk
5 81 (4.31%) MuleSoft
6 70 (3.73%) Red Hat
7 63 (3.35%) SAP
8 51 (2.72%) IBM
9 41 (2.18%) Adobe
10 40 (2.13%) Tableau
11 39 (2.08%) Qualys
12 35 (1.86%) TIBCO
13 29 (1.54%) ServiceNow
14 28 (1.49%) F5
14 28 (1.49%) Sparx
14 28 (1.49%) Xamarin
15 23 (1.22%) AppDynamics
15 23 (1.22%) Sybase
16 22 (1.17%) Cisco
16 22 (1.17%) Salesforce.com