Period
to 31 May 2020

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for API Development skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited API Development over the 6 months to 31 May 2020 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.

API Development
England > London
6 months to
31 May 2020
Same period 2019 Same period 2018
Rank 276 327 366
Rank change year-on-year +51 +39 +54
Contract jobs citing API Development 140 279 296
As % of all contract jobs advertised in London 0.73% 0.69% 0.65%
As % of the Processes & Methodologies category 0.82% 0.78% 0.73%
Number of daily rates quoted 114 235 216
Median daily rate £550 £500 £500
Median daily rate % change year-on-year +10.00% - -
10th Percentile £406 £396 £363
90th Percentile £675 £675 £600
England median daily rate £513 £488 £475
% change year-on-year +5.13% +2.63% -5.00%
Number of hourly rates quoted 0 1 0
Median hourly rate - £22.50 -
England median hourly rate £42.50 £22.50 £80.50
% change year-on-year +88.89% -72.05% +142.11%

API Development is in the Processes and Methodologies 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 process or methodology skills.

All Process and Methodology Skills
London
Contract vacancies with a requirement for process or methodology skills 17,003 35,990 40,488
As % of all contract IT jobs advertised in London 88.45% 89.09% 88.58%
Number of daily rates quoted 11,693 25,641 29,231
Median daily rate £525 £520 £500
Median daily rate % change year-on-year +0.96% +4.00% +5.26%
10th Percentile £325 £338 £325
90th Percentile £700 £675 £675
England median daily rate £475 £475 £463
% change year-on-year - +2.70% +2.78%
Number of hourly rates quoted 294 407 557
Median hourly rate £35.00 £25.00 £25.00
Median hourly rate % change year-on-year +40.00% - -
10th Percentile £15.00 £12.50 £14.00
90th Percentile £54.63 £53.75 £50.50
Median hourly rate £28.75 £25.00 £22.15
% change year-on-year +15.00% +12.87% -11.82%

API Development
Job Vacancy Trend in London

Job postings citing API Development as a proportion of all IT jobs advertised in London.

Job vacancy trend for API Development in London

API Development
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing API Development in London.

Daily rate trend for API Development in London

API Development
Daily Rate Histogram in London

Daily rate distribution for jobs citing API Development in London over the 6 months to 31 May 2020.

Daily rate histogram for API Development in London

API Development
Contractor Hourly Rate Trend in London

3-month moving average hourly rates quoted in jobs citing API Development in London.

Hourly rate trend for API Development in London

API Development
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 API Development within the London region over the 6 months to 31 May 2020. 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 +84 25 £575 +15.00% 4
South London +36 8 £525 +16.67%
West London +37 2 £400 -20.00% 5
API Development
England

For the 6 months to 31 May 2020, IT contractor jobs citing API Development 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 API Development.

1 69 (49.29%) Agile Software Development
2 46 (32.86%) Python
3 45 (32.14%) Java
4 41 (29.29%) DevOps
5 40 (28.57%) AWS
6 37 (26.43%) REST
6 37 (26.43%) JavaScript
6 37 (26.43%) TDD
7 34 (24.29%) Finance
7 34 (24.29%) Git (software)
7 34 (24.29%) Docker
8 30 (21.43%) Continuous Integration
9 29 (20.71%) Jenkins
10 27 (19.29%) Microservices
10 27 (19.29%) React
11 26 (18.57%) Web Services
12 25 (17.86%) Azure
13 24 (17.14%) Node.js
14 23 (16.43%) CSS
14 23 (16.43%) .NET
14 23 (16.43%) JSON
15 22 (15.71%) RESTful
15 22 (15.71%) BDD
15 22 (15.71%) SQL
16 21 (15.00%) Spring
16 21 (15.00%) AngularJS
17 20 (14.29%) Swagger
17 20 (14.29%) Banking
17 20 (14.29%) C#
17 20 (14.29%) XML

API Development
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 11 (7.86%) Elasticsearch
2 10 (7.14%) WebLogic
2 10 (7.14%) WebSphere
3 6 (4.29%) SharePoint
4 3 (2.14%) ArcGIS
5 1 (0.71%) Anypoint
5 1 (0.71%) Ethereum
5 1 (0.71%) IIS
5 1 (0.71%) Kentico
5 1 (0.71%) Oracle Workflow
5 1 (0.71%) Tomcat
Applications
1 1 (0.71%) Microsoft Excel
1 1 (0.71%) Microsoft Office
Business Applications
1 2 (1.43%) Oracle BPM
2 1 (0.71%) NetSuite
Cloud Services
1 40 (28.57%) AWS
2 25 (17.86%) Azure
3 17 (12.14%) Serverless
4 16 (11.43%) AWS Lambda
5 15 (10.71%) GitHub
6 10 (7.14%) Amazon EC2
7 9 (6.43%) AWS CloudFormation
7 9 (6.43%) GCP
8 8 (5.71%) Amazon ECS
8 8 (5.71%) Amazon EKS
8 8 (5.71%) AWS CodePipeline
8 8 (5.71%) SaaS
9 5 (3.57%) Amazon S3
9 5 (3.57%) CloudFront
9 5 (3.57%) Force.com
9 5 (3.57%) Salesforce Sales Cloud
9 5 (3.57%) Salesforce Service Cloud
9 5 (3.57%) Virtual Private Cloud
10 4 (2.86%) Apigee
11 3 (2.14%) Amazon ELB
Communications & Networking
1 10 (7.14%) HTTP
2 2 (1.43%) Intrusion Detection
2 2 (1.43%) MQTT
3 1 (0.71%) Internet
3 1 (0.71%) Skype
Database & Business Intelligence
1 19 (13.57%) PostgreSQL
2 11 (7.86%) SQL Server
3 10 (7.14%) MongoDB
3 10 (7.14%) MySQL
4 9 (6.43%) Relational Database
5 8 (5.71%) Amazon DynamoDB
5 8 (5.71%) Big Data
6 7 (5.00%) NoSQL
7 5 (3.57%) Amazon RDS
8 3 (2.14%) Hadoop
8 3 (2.14%) Oracle Database
9 2 (1.43%) Azure SQL Database
9 2 (1.43%) Redis
10 1 (0.71%) BigQuery
10 1 (0.71%) Blockchain
10 1 (0.71%) Oracle Database 10g
Development Applications
1 34 (24.29%) Git (software)
2 29 (20.71%) Jenkins
3 19 (13.57%) Maven
4 17 (12.14%) GitLab
4 17 (12.14%) JUnit
5 14 (10.00%) Ant
6 12 (8.57%) git-flow
6 12 (8.57%) Mockito
7 11 (7.86%) Cucumber
8 10 (7.14%) Gradle
8 10 (7.14%) JMeter
9 7 (5.00%) Cypress.io
9 7 (5.00%) Mocha
9 7 (5.00%) Selenium
9 7 (5.00%) Subversion
10 5 (3.57%) Artifactory
10 5 (3.57%) Babel
10 5 (3.57%) JIRA
10 5 (3.57%) webpack
11 3 (2.14%) TeamCity
General
1 34 (24.29%) Finance
2 20 (14.29%) Banking
3 12 (8.57%) Public Sector
4 5 (3.57%) Billing
5 3 (2.14%) Financial Institution
5 3 (2.14%) Retail
6 2 (1.43%) Front Office
6 2 (1.43%) Marketing
7 1 (0.71%) Advertising
7 1 (0.71%) Games
7 1 (0.71%) Law
Job Titles
1 93 (66.43%) Developer
2 24 (17.14%) Java Developer
3 17 (12.14%) Senior Developer
4 15 (10.71%) AWS Developer
5 14 (10.00%) AWS Engineer
6 12 (8.57%) C# Developer
6 12 (8.57%) Consultant
7 11 (7.86%) Python Developer
8 9 (6.43%) .NET Developer
8 9 (6.43%) Architect
8 9 (6.43%) Python Engineer
9 8 (5.71%) Full Stack Developer
9 8 (5.71%) Node.js Developer
9 8 (5.71%) React Developer
10 7 (5.00%) Senior Architect
11 6 (4.29%) Cloud Engineer
11 6 (4.29%) Java Engineer
11 6 (4.29%) Programmer
11 6 (4.29%) Ruby on Rails Developer
11 6 (4.29%) Software Engineer
Libraries, Frameworks & Software Standards
1 37 (26.43%) REST
2 27 (19.29%) React
3 26 (18.57%) Web Services
4 24 (17.14%) Node.js
5 23 (16.43%) .NET
5 23 (16.43%) CSS
5 23 (16.43%) JSON
6 22 (15.71%) RESTful
7 21 (15.00%) AngularJS
7 21 (15.00%) Spring
8 20 (14.29%) Swagger
8 20 (14.29%) XML
9 19 (13.57%) HTML
10 18 (12.86%) SOAP
11 12 (8.57%) .NET Core
11 12 (8.57%) GraphQL
11 12 (8.57%) HTML5
11 12 (8.57%) Ruby on Rails
12 11 (7.86%) RabbitMQ
13 10 (7.14%) J2EE
Miscellaneous
1 12 (8.57%) Cloud Native
1 12 (8.57%) Mobile App
2 11 (7.86%) Enterprise Software
3 10 (7.14%) Public Cloud
4 7 (5.00%) Data Structures
5 6 (4.29%) Mobile Payment
6 5 (3.57%) User Experience
7 4 (2.86%) Virtual Team
8 3 (2.14%) Analytical Skills
9 2 (1.43%) Greenfield Project
9 2 (1.43%) Mobile Banking
9 2 (1.43%) Raspberry Pi
9 2 (1.43%) Self-Motivation
10 1 (0.71%) Algorithms
10 1 (0.71%) Foreign Exchange (FX)
10 1 (0.71%) iPad
10 1 (0.71%) iPhone
10 1 (0.71%) Learning Management System
10 1 (0.71%) Linux Command Line
Operating Systems
1 6 (4.29%) Linux
2 4 (2.86%) Apple iOS
3 1 (0.71%) Android
3 1 (0.71%) Mac OS X
3 1 (0.71%) Windows
Processes & Methodologies
1 69 (49.29%) Agile Software Development
2 41 (29.29%) DevOps
3 37 (26.43%) TDD
4 30 (21.43%) Continuous Integration
5 27 (19.29%) Microservices
6 22 (15.71%) BDD
7 18 (12.86%) API Integration
7 18 (12.86%) SDLC
8 16 (11.43%) API Design
8 16 (11.43%) Computer Science
8 16 (11.43%) Web Development
9 15 (10.71%) Software Engineering
10 14 (10.00%) Continuous Delivery
10 14 (10.00%) Pair Programming
11 12 (8.57%) Analytics
11 12 (8.57%) Waterfall
12 10 (7.14%) Event-Driven Architecture
12 10 (7.14%) Open Source
12 10 (7.14%) Scrum
12 10 (7.14%) Software Architecture
Programming Languages
1 46 (32.86%) Python
2 45 (32.14%) Java
3 37 (26.43%) JavaScript
4 22 (15.71%) SQL
5 20 (14.29%) C#
6 18 (12.86%) TypeScript
7 11 (7.86%) Kotlin
7 11 (7.86%) Ruby
8 8 (5.71%) Java 8
8 8 (5.71%) PHP
9 6 (4.29%) Apex Code
10 2 (1.43%) Apple Swift
10 2 (1.43%) Bash Shell
10 2 (1.43%) Groovy
10 2 (1.43%) PHP 7
10 2 (1.43%) R
10 2 (1.43%) Shell Script
11 1 (0.71%) Go
11 1 (0.71%) SOQL
11 1 (0.71%) SOSL
Qualifications
1 16 (11.43%) Degree
2 13 (9.29%) Security Cleared
3 11 (7.86%) Computer Science Degree
4 10 (7.14%) SC Cleared
5 4 (2.86%) Microsoft Certification
6 3 (2.14%) Master's Degree
7 1 (0.71%) BPSS Clearance
7 1 (0.71%) MCP
7 1 (0.71%) MCPD
7 1 (0.71%) MCTS
Quality Assurance & Compliance
1 3 (2.14%) QA
2 1 (0.71%) PSD2
System Software
1 34 (24.29%) Docker
2 2 (1.43%) BusyBox
Systems Management
1 16 (11.43%) Kubernetes
2 14 (10.00%) Terraform
3 6 (4.29%) Ansible
4 4 (2.86%) Puppet
5 2 (1.43%) Graphite
5 2 (1.43%) Nagios
5 2 (1.43%) Prometheus
6 1 (0.71%) CFEngine
6 1 (0.71%) Opscode Chef
Vendors
1 13 (9.29%) Microsoft
2 11 (7.86%) Google
2 11 (7.86%) Salesforce.com
3 6 (4.29%) Apiary
3 6 (4.29%) MuleSoft
3 6 (4.29%) Oracle
4 5 (3.57%) SAP
5 3 (2.14%) ESRI
6 1 (0.71%) Apple
6 1 (0.71%) Atlassian
6 1 (0.71%) Broadcom
6 1 (0.71%) BT
6 1 (0.71%) Dell
6 1 (0.71%) IBM
6 1 (0.71%) Informatica
6 1 (0.71%) Jitterbit
6 1 (0.71%) Mashery
6 1 (0.71%) Meridio
6 1 (0.71%) New Relic
6 1 (0.71%) TIBCO