Period
to 1 August 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for REST skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited REST over the 6 months to 1 August 2021 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.

Representational State Transfer (REST)
Central London > City of London
6 months to
1 Aug 2021
Same period 2020 Same period 2019
Rank 87 59 66
Rank change year-on-year -28 +7 -23
Contract jobs citing REST 86 82 234
As % of all contract jobs advertised in the City of London 2.52% 3.51% 3.58%
As % of the Libraries, Frameworks & Software Standards category 7.41% 10.50% 9.84%
Number of daily rates quoted 67 69 177
10th Percentile £380 £423 £372
25th Percentile £462 £463 £444
Median daily rate (50th Percentile) £600 £550 £538
Median % change year-on-year +9.09% +2.33% +2.38%
75th Percentile £675 £675 £588
90th Percentile £718 £863 £675
Central London median daily rate £575 £550 £525
% change year-on-year +4.55% +4.76% -
Number of hourly rates quoted 2 1 3
10th Percentile £29.73 " "
25th Percentile £36.44 £53.75 £32.50
Median hourly rate £47.75 £57.50 £35.00
Median % change year-on-year -16.96% +64.29% +62.79%
75th Percentile £58.94 £61.25 £40.06
90th Percentile £65.58 " £41.59
Central London median hourly rate £47.75 £57.50 £35.00
% change year-on-year -16.96% +64.29% +62.79%

REST 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 1,160 781 2,378
As % of all contract IT jobs advertised in the City of London 33.95% 33.48% 36.38%
Number of daily rates quoted 887 606 1,928
10th Percentile £406 £375 £413
25th Percentile £463 £450 £465
Median daily rate (50th Percentile) £585 £525 £525
Median % change year-on-year +11.43% - -
75th Percentile £650 £625 £602
90th Percentile £725 £688 £675
Central London median daily rate £575 £525 £525
% change year-on-year +9.52% - +0.48%
Number of hourly rates quoted 8 7 10
10th Percentile £15.88 £29.05 £20.15
25th Percentile £20.00 £34.75 £24.81
Median hourly rate £30.25 £39.00 £38.37
Median % change year-on-year -22.44% +1.64% +74.42%
75th Percentile £37.75 £52.63 £48.56
90th Percentile £47.43 £59.00 £56.50
Central London median hourly rate £35.00 £39.00 £41.75
% change year-on-year -10.26% -6.58% +89.75%

REST
Job Vacancy Trend in the City of London

Job postings citing REST as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for REST in the City of London

REST
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing REST in the City of London.

Daily rate trend for REST in the City of London

REST
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing REST in the City of London over the 6 months to 1 August 2021.

Daily rate histogram for REST in the City of London

REST
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing REST in the City of London.

Hourly rate trend for REST in the City of London

REST
Hourly Rate Histogram in the City of London

Hourly rate distribution of jobs citing REST in the City of London over the 6 months to 1 August 2021.

Hourly rate histogram for REST in the City of London

For the 6 months to 1 August 2021, IT contractor jobs citing REST 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 REST.

1 54 (62.79%) Java
2 43 (50.00%) Agile Software Development
3 40 (46.51%) Spring
4 35 (40.70%) AWS
5 32 (37.21%) JavaScript
6 26 (30.23%) Microservices
7 23 (26.74%) Maven
8 22 (25.58%) Banking
9 21 (24.42%) Finance
9 21 (24.42%) Cucumber
10 20 (23.26%) DevOps
11 18 (20.93%) Oracle
11 18 (20.93%) SQL
12 17 (19.77%) Spring Boot
13 16 (18.60%) Kubernetes
13 16 (18.60%) AngularJS
13 16 (18.60%) Vert.x
13 16 (18.60%) HTML
14 15 (17.44%) SOAP
14 15 (17.44%) Scrum
14 15 (17.44%) NoSQL
14 15 (17.44%) Terraform
14 15 (17.44%) Jenkins
15 14 (16.28%) Java 8
15 14 (16.28%) Continuous Integration
16 13 (15.12%) High Availability
16 13 (15.12%) TDD
16 13 (15.12%) Web Services
16 13 (15.12%) Python
17 12 (13.95%) OO

REST
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 7 (8.14%) Apache
2 6 (6.98%) Red Hat Fuse
3 5 (5.81%) Confluence
4 4 (4.65%) SharePoint
5 2 (2.33%) Oracle Coherence
6 1 (1.16%) Apache Spark
6 1 (1.16%) Appian
6 1 (1.16%) Cloud Foundry
6 1 (1.16%) Elasticsearch
6 1 (1.16%) JBoss
Applications
1 1 (1.16%) Microsoft Excel
1 1 (1.16%) Spreadsheet
Cloud Services
1 35 (40.70%) AWS
2 12 (13.95%) Azure
3 6 (6.98%) GCP
3 6 (6.98%) GitHub
3 6 (6.98%) Serverless
4 5 (5.81%) IaaS
5 4 (4.65%) Azure Data Factory
5 4 (4.65%) PaaS
5 4 (4.65%) SaaS
5 4 (4.65%) Snowflake
6 3 (3.49%) Amazon ECS
6 3 (3.49%) AWS CloudFormation
6 3 (3.49%) AWS Lambda
6 3 (3.49%) Cloud Computing
6 3 (3.49%) Slack
7 2 (2.33%) Power Platform
7 2 (2.33%) PowerApps
8 1 (1.16%) Azure Logic Apps
8 1 (1.16%) Dynamics 365
8 1 (1.16%) Power Automate
Communications & Networking
1 9 (10.47%) HTTP
2 4 (4.65%) HTTPS
3 3 (3.49%) DNS
3 3 (3.49%) Kerberos
3 3 (3.49%) TCP/IP
4 2 (2.33%) Internet
5 1 (1.16%) SIGTRAN
5 1 (1.16%) SMPP
5 1 (1.16%) SMS
5 1 (1.16%) SS7
5 1 (1.16%) Wireshark
Database & Business Intelligence
1 15 (17.44%) NoSQL
2 12 (13.95%) SQL Server
3 9 (10.47%) Relational Database
4 8 (9.30%) MongoDB
5 5 (5.81%) SQL Server Integration Services
6 4 (4.65%) Data Warehouse
7 1 (1.16%) Amazon DynamoDB
7 1 (1.16%) Apache Ignite
7 1 (1.16%) Hazelcast
7 1 (1.16%) Infinispan
7 1 (1.16%) Oracle Database
7 1 (1.16%) PostgreSQL
7 1 (1.16%) Power BI
7 1 (1.16%) RDBMS
7 1 (1.16%) SQL Server 2012
7 1 (1.16%) SQL Server 2014
7 1 (1.16%) SQL Server 2016
7 1 (1.16%) SQL Server 2019
Development Applications
1 23 (26.74%) Maven
2 21 (24.42%) Cucumber
3 15 (17.44%) Jenkins
4 10 (11.63%) Git (software)
5 7 (8.14%) JIRA
5 7 (8.14%) Selenium
6 4 (4.65%) Bitbucket
6 4 (4.65%) JUnit
6 4 (4.65%) Postman
6 4 (4.65%) Subversion
6 4 (4.65%) TeamCity
7 3 (3.49%) jMock
7 3 (3.49%) Mockito
7 3 (3.49%) NUnit
8 2 (2.33%) Cypress.io
8 2 (2.33%) Protractor
8 2 (2.33%) Sonatype Nexus
9 1 (1.16%) CircleCI
9 1 (1.16%) REST Assured
9 1 (1.16%) WebDriver
General
1 22 (25.58%) Banking
2 21 (24.42%) Finance
3 5 (5.81%) Analytical Skills
3 5 (5.81%) Retail
3 5 (5.81%) Social Skills
4 3 (3.49%) Investment Banking
4 3 (3.49%) Marketing
5 2 (2.33%) Advertising
5 2 (2.33%) Games
5 2 (2.33%) International Banking
5 2 (2.33%) Retail Banking
6 1 (1.16%) Financial Institution
6 1 (1.16%) Front Office
6 1 (1.16%) Legal
6 1 (1.16%) Manufacturing
6 1 (1.16%) Public Sector
6 1 (1.16%) Telecoms
6 1 (1.16%) Wearables
Job Titles
1 37 (43.02%) Developer
2 21 (24.42%) Java Developer
3 18 (20.93%) Java Engineer
4 11 (12.79%) Architect
5 8 (9.30%) Solutions Architect
6 7 (8.14%) AWS Developer
6 7 (8.14%) DevOps Engineer
6 7 (8.14%) Java Architect
7 6 (6.98%) Java Solutions Architect
7 6 (6.98%) Senior Java Engineer
7 6 (6.98%) Software Engineer
8 5 (5.81%) .NET Developer
9 4 (4.65%) Java Software Engineer
9 4 (4.65%) Senior Java Software Engineer
9 4 (4.65%) Senior Software Engineer
10 3 (3.49%) C# Developer
10 3 (3.49%) ETL Developer
10 3 (3.49%) Lead Developer
10 3 (3.49%) Senior Developer
10 3 (3.49%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 40 (46.51%) Spring
2 17 (19.77%) Spring Boot
3 16 (18.60%) AngularJS
3 16 (18.60%) HTML
3 16 (18.60%) Vert.x
4 15 (17.44%) SOAP
5 13 (15.12%) Web Services
6 12 (13.95%) Kafka
7 11 (12.79%) HTML5
8 10 (11.63%) .NET
8 10 (11.63%) CSS
8 10 (11.63%) JSON
8 10 (11.63%) React
9 9 (10.47%) JMS
9 9 (10.47%) Node.js
10 8 (9.30%) Hibernate
10 8 (9.30%) Middleware
11 7 (8.14%) Ajax
11 7 (8.14%) jQuery
12 6 (6.98%) .NET Framework
Miscellaneous
1 11 (12.79%) Enterprise Software
2 10 (11.63%) Clustering
3 6 (6.98%) Mobile App
4 5 (5.81%) Data Structures
5 3 (3.49%) Legacy Systems
5 3 (3.49%) Replication
6 2 (2.33%) Social Media
7 1 (1.16%) Management Information System
7 1 (1.16%) Market Risk
7 1 (1.16%) Mobile Payment
7 1 (1.16%) Reference Data
7 1 (1.16%) User Experience
Operating Systems
1 9 (10.47%) Linux
2 3 (3.49%) Unix
2 3 (3.49%) Windows
3 2 (2.33%) Android
3 2 (2.33%) Solaris
3 2 (2.33%) Windows Server
3 2 (2.33%) Windows Server 2008
4 1 (1.16%) Windows Server 2012
4 1 (1.16%) Windows Server 2016
4 1 (1.16%) Windows Server 2019
Processes & Methodologies
1 43 (50.00%) Agile Software Development
2 26 (30.23%) Microservices
3 20 (23.26%) DevOps
4 15 (17.44%) Scrum
5 14 (16.28%) Continuous Integration
6 13 (15.12%) High Availability
6 13 (15.12%) TDD
7 12 (13.95%) Full Stack Development
7 12 (13.95%) OO
7 12 (13.95%) Performance Tuning
7 12 (13.95%) Web Development
8 11 (12.79%) Software Engineering
9 10 (11.63%) Event-Driven
10 9 (10.47%) Open Source
10 9 (10.47%) Root Cause Analysis
10 9 (10.47%) Scalability Testing
11 8 (9.30%) Multithreading
12 7 (8.14%) API Testing
12 7 (8.14%) Continuous Improvement
12 7 (8.14%) Technology Roadmap
Programming Languages
1 54 (62.79%) Java
2 32 (37.21%) JavaScript
3 18 (20.93%) SQL
4 14 (16.28%) Java 8
5 13 (15.12%) Python
6 10 (11.63%) C#
7 5 (5.81%) TypeScript
8 3 (3.49%) PowerShell
9 2 (2.33%) Bash Shell
9 2 (2.33%) ES6
9 2 (2.33%) Kotlin
9 2 (2.33%) Perl
9 2 (2.33%) Shell Script
10 1 (1.16%) Apex Code
10 1 (1.16%) C
10 1 (1.16%) C++
10 1 (1.16%) T-SQL
10 1 (1.16%) VB.NET
10 1 (1.16%) VBA
Qualifications
1 5 (5.81%) SC Cleared
1 5 (5.81%) Security Cleared
2 1 (1.16%) ISEB
2 1 (1.16%) ISTQB
2 1 (1.16%) Microsoft Certification
Quality Assurance & Compliance
1 7 (8.14%) QA
2 1 (1.16%) Actionable Recommendations
2 1 (1.16%) GDPR
2 1 (1.16%) Sarbanes-Oxley
System Software
1 10 (11.63%) Docker
2 4 (4.65%) Active Directory
3 3 (3.49%) VMware ESXi
3 3 (3.49%) VMware Infrastructure
4 2 (2.33%) NFS
4 2 (2.33%) Veritas File System
4 2 (2.33%) Veritas Volume Manager
5 1 (1.16%) Apache ZooKeeper
Systems Management
1 16 (18.60%) Kubernetes
2 15 (17.44%) Terraform
3 3 (3.49%) Ansible
3 3 (3.49%) Control-M
3 3 (3.49%) EMC NetWorker
3 3 (3.49%) Netcool
3 3 (3.49%) QRadar
3 3 (3.49%) Tivoli
3 3 (3.49%) Tivoli Storage Manager
4 2 (2.33%) Failover Clustering
4 2 (2.33%) Red Hat Satellite
5 1 (1.16%) Forefront Identity Manager
5 1 (1.16%) SCOrch
Vendors
1 18 (20.93%) Oracle
2 6 (6.98%) Microsoft
3 4 (4.65%) Confluent
4 3 (3.49%) BMC
4 3 (3.49%) CyberArk
4 3 (3.49%) EMC
4 3 (3.49%) Google
4 3 (3.49%) IBM
4 3 (3.49%) Qualys
4 3 (3.49%) Splunk
4 3 (3.49%) TIBCO
4 3 (3.49%) VMware
5 2 (2.33%) Red Hat
5 2 (2.33%) SaltStack
6 1 (1.16%) iManage
6 1 (1.16%) Mavenir
6 1 (1.16%) Salesforce Marketing Cloud
6 1 (1.16%) Salesforce.com
6 1 (1.16%) SAP
6 1 (1.16%) Tealium