Period
to 22 April 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for RESTful skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited RESTful over the 6 months to 22 April 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.

RESTful
Central London > City of London
6 months to
22 Apr 2021
Same period 2020 Same period 2019
Rank 83 72 63
Rank change year-on-year -11 -9 -6
Contract jobs citing RESTful 59 105 258
As % of all contract jobs advertised in the City of London 2.36% 2.76% 3.84%
As % of the Libraries, Frameworks & Software Standards category 7.17% 8.06% 10.25%
Number of daily rates quoted 49 90 204
10th Percentile £325 £399 £418
25th Percentile £469 £425 £463
Median daily rate (50th Percentile) £588 £523 £525
Median % change year-on-year +12.44% -0.48% +5.53%
75th Percentile £619 £625 £588
90th Percentile £728 £638 £687
Central London median daily rate £588 £505 £550
% change year-on-year +16.34% -8.18% +10.00%

RESTful 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 823 1,302 2,517
As % of all contract IT jobs advertised in the City of London 32.92% 34.17% 37.49%
Number of daily rates quoted 621 1,035 2,029
10th Percentile £369 £384 £409
25th Percentile £450 £450 £463
Median daily rate (50th Percentile) £550 £525 £525
Median % change year-on-year +4.76% - +0.96%
75th Percentile £630 £622 £600
90th Percentile £700 £688 £675
Central London median daily rate £550 £525 £525
% change year-on-year +4.76% - +5.00%
Number of hourly rates quoted 3 4 8
10th Percentile £15.25 £36.50 £12.88
25th Percentile £15.63 £42.13 £17.38
Median hourly rate £17.50 £50.75 £28.75
Median % change year-on-year -65.52% +76.52% +33.72%
75th Percentile £20.63 £58.44 £42.25
90th Percentile £21.75 £60.13 £56.50
Central London median hourly rate £17.50 £55.00 £35.00
% change year-on-year -68.18% +57.14% +62.79%

RESTful
Job Vacancy Trend in the City of London

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

Job vacancy trend for RESTful in the City of London

RESTful
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for RESTful in the City of London

RESTful
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing RESTful in the City of London over the 6 months to 22 April 2021.

Daily rate histogram for RESTful in the City of London

RESTful
Contractor Hourly Rate Trend in the City of London

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

Hourly rate trend for RESTful in the City of London

For the 6 months to 22 April 2021, IT contractor jobs citing RESTful 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 RESTful.

1 25 (42.37%) Java
2 24 (40.68%) Agile Software Development
3 17 (28.81%) Spring
3 17 (28.81%) Microservices
4 16 (27.12%) DevOps
5 14 (23.73%) Kotlin
6 13 (22.03%) TDD
6 13 (22.03%) Azure
7 11 (18.64%) JavaScript
7 11 (18.64%) SQL
8 10 (16.95%) JSON
9 9 (15.25%) Multithreading
9 9 (15.25%) Android
9 9 (15.25%) Git (software)
9 9 (15.25%) Software Engineering
9 9 (15.25%) SOA
9 9 (15.25%) Salesforce.com
9 9 (15.25%) Stakeholder Management
9 9 (15.25%) Spring Boot
9 9 (15.25%) MuleSoft
9 9 (15.25%) Node.js
9 9 (15.25%) Java 8
10 8 (13.56%) MongoDB
10 8 (13.56%) Apigee
10 8 (13.56%) API Design
10 8 (13.56%) API Integration
10 8 (13.56%) Swagger
10 8 (13.56%) React
10 8 (13.56%) Front Office
10 8 (13.56%) Scrum

RESTful
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 3 (5.08%) Apache Spark
2 1 (1.69%) Adobe Experience Manager
2 1 (1.69%) Apache Solr
2 1 (1.69%) Camunda
2 1 (1.69%) CMS
2 1 (1.69%) Elasticsearch
2 1 (1.69%) Mule
Cloud Services
1 13 (22.03%) Azure
2 8 (13.56%) Apigee
3 5 (8.47%) Serverless
4 4 (6.78%) AWS
4 4 (6.78%) GitHub
5 2 (3.39%) Cloud Computing
6 1 (1.69%) Amazon Cognito
6 1 (1.69%) Amazon ElastiCache
6 1 (1.69%) Amazon EMR
6 1 (1.69%) AWS Lambda
6 1 (1.69%) Azure Functions
6 1 (1.69%) Azure Logic Apps
6 1 (1.69%) Azure Storage
6 1 (1.69%) GCP
6 1 (1.69%) npm
6 1 (1.69%) Salesforce Sales Cloud
6 1 (1.69%) Slack
Communications & Networking
1 4 (6.78%) HTTP
Database & Business Intelligence
1 8 (13.56%) MongoDB
2 6 (10.17%) NoSQL
2 6 (10.17%) Redis
3 5 (8.47%) Hazelcast
4 3 (5.08%) Couchbase
4 3 (5.08%) MySQL
4 3 (5.08%) PostgreSQL
4 3 (5.08%) Relational Database
5 2 (3.39%) Big Data
5 2 (3.39%) Flink
5 2 (3.39%) SQLite
6 1 (1.69%) Amazon DynamoDB
6 1 (1.69%) Data Mart
6 1 (1.69%) Neo4j
6 1 (1.69%) Oracle Database
6 1 (1.69%) PolyBase
6 1 (1.69%) RDBMS
6 1 (1.69%) SQL Server
Development Applications
1 9 (15.25%) Git (software)
2 4 (6.78%) Jenkins
2 4 (6.78%) TeamCity
3 3 (5.08%) Android Studio
3 3 (5.08%) Appium
3 3 (5.08%) webpack
3 3 (5.08%) Xcode
4 2 (3.39%) Cucumber
4 2 (3.39%) Gradle
4 2 (3.39%) Postman
4 2 (3.39%) Selenium
4 2 (3.39%) SpecFlow
5 1 (1.69%) Calabash
5 1 (1.69%) Mockito
5 1 (1.69%) NeoLoad
5 1 (1.69%) RSpec
5 1 (1.69%) Team Foundation Server
5 1 (1.69%) TestNG
5 1 (1.69%) WebDriver
5 1 (1.69%) WebLOAD
General
1 8 (13.56%) Front Office
2 7 (11.86%) Banking
2 7 (11.86%) Investment Banking
3 6 (10.17%) Games
4 5 (8.47%) Finance
5 2 (3.39%) Retail
6 1 (1.69%) Financial Institution
6 1 (1.69%) Legal
6 1 (1.69%) Public Sector
Job Titles
1 41 (69.49%) Developer
2 16 (27.12%) Java Developer
3 9 (15.25%) Architect
4 8 (13.56%) Integration Architect
4 8 (13.56%) Salesforce Architect
5 7 (11.86%) Azure Architect
6 5 (8.47%) Android Developer
6 5 (8.47%) Oracle Developer
6 5 (8.47%) Software Engineer
7 4 (6.78%) Electronic Trading Developer
7 4 (6.78%) Electronic Trading Java Developer
7 4 (6.78%) Full Stack Developer
7 4 (6.78%) Senior Developer
7 4 (6.78%) Software Test Engineer
7 4 (6.78%) Test Engineer
8 3 (5.08%) .NET Developer
8 3 (5.08%) AWS Developer
8 3 (5.08%) C# .NET Developer
8 3 (5.08%) C# Developer
8 3 (5.08%) React Developer
Libraries, Frameworks & Software Standards
1 17 (28.81%) Spring
2 10 (16.95%) JSON
3 9 (15.25%) Node.js
3 9 (15.25%) Spring Boot
4 8 (13.56%) React
4 8 (13.56%) Swagger
5 7 (11.86%) CSS
5 7 (11.86%) GraphQL
6 5 (8.47%) .NET
6 5 (8.47%) HTML
6 5 (8.47%) XML
7 4 (6.78%) Kafka
7 4 (6.78%) Memcached
8 3 (5.08%) .NET Core
8 3 (5.08%) AngularJS
8 3 (5.08%) ASP.NET Web API
8 3 (5.08%) Express
8 3 (5.08%) Redux
8 3 (5.08%) REST
8 3 (5.08%) Web Services
Miscellaneous
1 5 (8.47%) Greenfield Project
2 4 (6.78%) Algorithms
2 4 (6.78%) Data Structures
2 4 (6.78%) Mobile App
2 4 (6.78%) User Experience
3 2 (3.39%) Cloud Native
3 2 (3.39%) Foreign Exchange (FX)
3 2 (3.39%) Grid Computing
4 1 (1.69%) Analytical Skills
4 1 (1.69%) Animation
4 1 (1.69%) Blog
4 1 (1.69%) Equities
Operating Systems
1 9 (15.25%) Android
2 2 (3.39%) Apple iOS
2 2 (3.39%) Linux
Processes & Methodologies
1 24 (40.68%) Agile Software Development
2 17 (28.81%) Microservices
3 16 (27.12%) DevOps
4 13 (22.03%) TDD
5 9 (15.25%) Multithreading
5 9 (15.25%) SOA
5 9 (15.25%) Software Engineering
5 9 (15.25%) Stakeholder Management
6 8 (13.56%) API Design
6 8 (13.56%) API Integration
6 8 (13.56%) Scrum
7 7 (11.86%) Enterprise Architecture
7 7 (11.86%) Fintech
7 7 (11.86%) OOP
7 7 (11.86%) Performance Tuning
7 7 (11.86%) Test Automation
8 6 (10.17%) BDD
8 6 (10.17%) Continuous Integration
8 6 (10.17%) Front End Development
8 6 (10.17%) OO
Programming Languages
1 25 (42.37%) Java
2 14 (23.73%) Kotlin
3 11 (18.64%) JavaScript
3 11 (18.64%) SQL
4 9 (15.25%) Java 8
5 8 (13.56%) C#
6 6 (10.17%) Scala
7 5 (8.47%) PL/SQL
7 5 (8.47%) Python
8 4 (6.78%) ES6
8 4 (6.78%) Haskell
9 3 (5.08%) Apple Swift
10 2 (3.39%) Groovy
10 2 (3.39%) Ruby
11 1 (1.69%) Apex Code
11 1 (1.69%) Go
11 1 (1.69%) SOQL
Qualifications
1 5 (8.47%) Computer Science Degree
1 5 (8.47%) Degree
2 1 (1.69%) AWS Certification
2 1 (1.69%) PhD
2 1 (1.69%) Security Cleared
System Software
1 5 (8.47%) Docker
Systems Management
1 7 (11.86%) Kubernetes
2 1 (1.69%) Ansible
2 1 (1.69%) Opscode Chef
2 1 (1.69%) Terraform
Vendors
1 9 (15.25%) MuleSoft
1 9 (15.25%) Salesforce.com
2 8 (13.56%) Google
2 8 (13.56%) Microsoft
3 6 (10.17%) Oracle
4 2 (3.39%) Adobe
4 2 (3.39%) Xamarin
5 1 (1.69%) Databricks
5 1 (1.69%) Splunk