Period
to 16 December 2017

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 16 December 2017 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
16 Dec 2017
Same period 2016 Same period 2015
Rank 332 425 462
Rank change year-on-year +93 +37 +82
Contract jobs citing API Development 340 183 151
As % of all contract IT jobs advertised in London 0.72% 0.41% 0.33%
As % of the Processes & Methodologies category 0.83% 0.48% 0.39%
Number of daily rates quoted 275 138 89
London median daily rate £488 £475 £485
Median daily rate % change year-on-year +2.63% -2.06% +24.36%
10th Percentile £390 £388 £349
90th Percentile £658 £600 £615
England median daily rate £450 £475 £450
% change year-on-year -5.26% +5.56% +16.88%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate - - -

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 40979 38352 39009
As % of all contract IT jobs advertised in London 86.80% 86.25% 84.33%
Number of daily rates quoted 29855 27447 27851
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.27%
10th Percentile £313 £308 £288
90th Percentile £675 £650 £638
England median daily rate £450 £430 £425
% change year-on-year +4.65% +1.18% +6.25%
Number of hourly rates quoted 377 420 466
London median hourly rate £22.50 £22.50 £20.00
Median hourly rate % change year-on-year - +12.50% +11.11%
10th Percentile £13.28 £12.15 £11.25
90th Percentile £52.28 £50.00 £50.00
England median hourly rate £25.00 £24.47 £22.00
% change year-on-year +2.17% +11.23% +15.79%

API Development
Job Vacancy Trend in London

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

Job vacancy trend for API Development in London

API Development
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for API Development in London

API Development
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing API Development in London over the 6 months to 16 December 2017.

Contractor daily rate histogram for API Development in London

API Development
Contractor Hourly Rate Trend in London

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

Contractor 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 16 December 2017. 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 +40 75 £450 -1.10% 11
East London +4 12 £445 -6.32% 2
South London -27 6 £550 -
West London -31 5 £500 +11.11% 3
North London - 3 £475 -
API Development
England

For the 6 months to 16 December 2017, IT contractor jobs citing API Development also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region with a requirement for API Development.

1 162 (47.65%) Agile Software Development
2 161 (47.35%) JavaScript
3 150 (44.12%) Java
4 147 (43.24%) TDD
5 138 (40.59%) RESTful
5 138 (40.59%) REST
6 121 (35.59%) AngularJS
7 106 (31.18%) HTML
8 103 (30.29%) Node.js
9 93 (27.35%) SQL Server
10 91 (26.76%) Git (software)
11 88 (25.88%) C#
12 87 (25.59%) .NET
13 77 (22.65%) Amazon AWS
14 76 (22.35%) NoSQL
15 70 (20.59%) SQL
15 70 (20.59%) Web Services
16 68 (20.00%) Jenkins
17 67 (19.71%) Microsoft
17 67 (19.71%) JSON
18 65 (19.12%) ASP.NET Web API
18 65 (19.12%) HTML5
19 64 (18.82%) Continuous Integration
20 61 (17.94%) CSS
21 60 (17.65%) XML
22 58 (17.06%) Finance
23 57 (16.76%) SOAP
24 55 (16.18%) Microservices
25 52 (15.29%) Python
25 52 (15.29%) MVC

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 9 (2.65%) Apache
2 8 (2.35%) Apache Spark
3 6 (1.76%) Adobe Experience Manager
3 6 (1.76%) Elasticsearch
4 3 (0.88%) Cloud Foundry
4 3 (0.88%) CMS
4 3 (0.88%) Confluence
4 3 (0.88%) JBoss
4 3 (0.88%) Mule
5 2 (0.59%) Drupal
5 2 (0.59%) IIS
5 2 (0.59%) Jupyter
5 2 (0.59%) SharePoint
5 2 (0.59%) SugarCRM
5 2 (0.59%) Tomcat
6 1 (0.29%) Jetty
6 1 (0.29%) nginx
6 1 (0.29%) Oracle SOA Suite
6 1 (0.29%) Oracle Workflow
6 1 (0.29%) SharePoint 2013
Applications
1 2 (0.59%) Microsoft Excel
1 2 (0.59%) Microsoft Office
2 1 (0.29%) HipChat
Business Applications
1 1 (0.29%) Dynamics CRM
1 1 (0.29%) Endur
Cloud Services
1 77 (22.65%) Amazon AWS
2 34 (10.00%) Microsoft Azure
3 27 (7.94%) GitHub
4 26 (7.65%) Serverless
5 10 (2.94%) Heroku
6 7 (2.06%) AWS Lambda
7 6 (1.76%) PaaS
8 4 (1.18%) Amazon S3
8 4 (1.18%) Google Cloud Platform
9 3 (0.88%) Amazon EC2
9 3 (0.88%) Office 365
10 2 (0.59%) Amazon CloudWatch
10 2 (0.59%) AWS CloudFormation
10 2 (0.59%) Azure Active Directory
10 2 (0.59%) CloudFront
10 2 (0.59%) SaaS
10 2 (0.59%) Salesforce Service Cloud
11 1 (0.29%) Dynamics 365
11 1 (0.29%) Linode
11 1 (0.29%) Slack
Communications & Networking
1 34 (10.00%) HTTP
2 10 (2.94%) Internet
3 3 (0.88%) HTTPS
4 2 (0.59%) LDAP
5 1 (0.29%) DNS
5 1 (0.29%) Intranet
5 1 (0.29%) X.509
Database & Business Intelligence
1 93 (27.35%) SQL Server
2 76 (22.35%) NoSQL
3 32 (9.41%) MySQL
4 31 (9.12%) MongoDB
5 20 (5.88%) PostgreSQL
6 17 (5.00%) SQL Server 2008
6 17 (5.00%) SQL Server 2016
7 13 (3.82%) DocumentDB
8 12 (3.53%) Big Data
8 12 (3.53%) SQL Server Integration Services
9 11 (3.24%) SQL Server Reporting Services
10 10 (2.94%) Relational Database
11 9 (2.65%) RDBMS
12 8 (2.35%) Amazon DynamoDB
12 8 (2.35%) HBase
13 5 (1.47%) SQL Server Analysis Services
14 4 (1.18%) Data Mining
15 3 (0.88%) Apache Cassandra
16 2 (0.59%) Data Warehouse
16 2 (0.59%) Hadoop
Development Applications
1 91 (26.76%) Git (software)
2 68 (20.00%) Jenkins
3 39 (11.47%) Sonatype Nexus
4 25 (7.35%) NUnit
5 23 (6.76%) JIRA
5 23 (6.76%) webpack
6 22 (6.47%) TeamCity
7 21 (6.18%) Maven
8 20 (5.88%) Babel
9 19 (5.59%) Mocha
10 16 (4.71%) Gerrit
10 16 (4.71%) Sinon.JS
11 15 (4.41%) Codeception
11 15 (4.41%) Codeship
11 15 (4.41%) Octopus Deploy
11 15 (4.41%) PHPUnit
12 13 (3.82%) Rhino Mocks
13 8 (2.35%) Gradle
13 8 (2.35%) Visual Studio
14 6 (1.76%) JUnit
General
1 58 (17.06%) Finance
2 43 (12.65%) Banking
3 27 (7.94%) Legal
4 24 (7.06%) Law
5 10 (2.94%) Marketing
6 8 (2.35%) Publishing
7 6 (1.76%) Advertising
7 6 (1.76%) Retail
8 5 (1.47%) Telecoms
9 4 (1.18%) Front Office
9 4 (1.18%) International Banking
10 3 (0.88%) Electronics
10 3 (0.88%) Manufacturing
10 3 (0.88%) Retail Banking
11 2 (0.59%) Financial Institution
11 2 (0.59%) Investment Banking
11 2 (0.59%) Pharmaceutical
Job Titles
1 255 (75.00%) Developer
2 50 (14.71%) JavaScript Developer
3 48 (14.12%) Full Stack Developer
4 39 (11.47%) Java Developer
5 32 (9.41%) Senior Developer
6 30 (8.82%) .NET Developer
7 29 (8.53%) Architect
8 23 (6.76%) Python Developer
9 22 (6.47%) Node.js Developer
10 20 (5.88%) C# Developer
10 20 (5.88%) Consultant
11 18 (5.29%) PHP Developer
12 17 (5.00%) Agile Developer
13 16 (4.71%) Microsoft Developer
14 15 (4.41%) Angular Developer
15 13 (3.82%) Senior Full Stack Developer
16 12 (3.53%) Senior .NET Developer
17 11 (3.24%) Java Architect
18 8 (2.35%) Development Manager
18 8 (2.35%) Team Leader
Libraries, Frameworks & Software Standards
1 138 (40.59%) REST
1 138 (40.59%) RESTful
2 121 (35.59%) AngularJS
3 106 (31.18%) HTML
4 103 (30.29%) Node.js
5 87 (25.59%) .NET
6 70 (20.59%) Web Services
7 67 (19.71%) JSON
8 65 (19.12%) ASP.NET Web API
8 65 (19.12%) HTML5
9 61 (17.94%) CSS
10 60 (17.65%) XML
11 57 (16.76%) SOAP
12 44 (12.94%) RabbitMQ
13 37 (10.88%) ASP.NET
14 35 (10.29%) CSS3
15 32 (9.41%) ASP.NET MVC
16 31 (9.12%) React
17 25 (7.35%) Express
18 23 (6.76%) Twitter Bootstrap
Miscellaneous
1 23 (6.76%) Analytical Skills
2 18 (5.29%) Greenfield Project
3 8 (2.35%) Digital Media
3 8 (2.35%) Enterprise Software
3 8 (2.35%) Mobile App
4 7 (2.06%) Foreign Exchange (FX)
4 7 (2.06%) User Experience
5 6 (1.76%) Computer Science
5 6 (1.76%) Virtual Team
6 4 (1.18%) Fintech
7 3 (0.88%) Algorithms
7 3 (0.88%) Data Structures
7 3 (0.88%) Derivative
7 3 (0.88%) Equities
7 3 (0.88%) Equity Derivative
7 3 (0.88%) Fixed Income
7 3 (0.88%) PKI
8 2 (0.59%) Data Centre
8 2 (0.59%) Embedded Systems
8 2 (0.59%) STB
Operating Systems
1 43 (12.65%) Linux
2 24 (7.06%) Red Hat Enterprise Linux
3 21 (6.18%) Unix
4 17 (5.00%) Windows
5 8 (2.35%) Android
5 8 (2.35%) Apple iOS
6 5 (1.47%) Ubuntu
7 3 (0.88%) CoreOS
8 2 (0.59%) Windows Server
9 1 (0.29%) CentOS
9 1 (0.29%) Mac OS
Processes & Methodologies
1 162 (47.65%) Agile Software Development
2 147 (43.24%) TDD
3 64 (18.82%) Continuous Integration
4 55 (16.18%) Microservices
5 52 (15.29%) MVC
6 48 (14.12%) Software Engineering
7 47 (13.82%) Unit Testing
8 46 (13.53%) BDD
9 38 (11.18%) Test Automation
10 37 (10.88%) Scrum
11 32 (9.41%) DevOps
12 31 (9.12%) API Design
13 29 (8.53%) API Integration
14 26 (7.65%) Continuous Delivery
15 25 (7.35%) OO
16 23 (6.76%) User Stories
16 23 (6.76%) Web Development
17 22 (6.47%) Agile Testing
18 20 (5.88%) SDLC
18 20 (5.88%) Test Scripting
Programming Languages
1 161 (47.35%) JavaScript
2 150 (44.12%) Java
3 88 (25.88%) C#
4 70 (20.59%) SQL
5 52 (15.29%) Python
6 26 (7.65%) TypeScript
7 24 (7.06%) ES6
7 24 (7.06%) PHP
8 17 (5.00%) Ruby
9 15 (4.41%) Scala
10 11 (3.24%) Go
10 11 (3.24%) T-SQL
11 10 (2.94%) C++
11 10 (2.94%) Groovy
12 8 (2.35%) Clojure
13 7 (2.06%) Bash Shell
14 5 (1.47%) C
14 5 (1.47%) Objective-C
14 5 (1.47%) VB
15 4 (1.18%) VBScript
Qualifications
1 12 (3.53%) Degree
2 10 (2.94%) Security Cleared
3 7 (2.06%) SC Cleared
4 4 (1.18%) Computer Science Degree
4 4 (1.18%) CTC Cleared
5 3 (0.88%) BPSS Clearance
6 2 (0.59%) ISEB
6 2 (0.59%) ISTQB
Quality Assurance & Compliance
1 5 (1.47%) QA
2 1 (0.29%) GDPR
2 1 (0.29%) ISO/IEC 27001
System Software
1 43 (12.65%) Docker
2 30 (8.82%) Active Directory
3 1 (0.29%) Virtual Machines
Systems Management
1 7 (2.06%) Kubernetes
2 2 (0.59%) Ansible
2 2 (0.59%) CSIRT
2 2 (0.59%) Terraform
3 1 (0.29%) HP Quality Center
3 1 (0.29%) Kibana
3 1 (0.29%) logstash
3 1 (0.29%) Opscode Chef
3 1 (0.29%) Puppet
3 1 (0.29%) Systems Management Server (SMS)
Vendors
1 67 (19.71%) Microsoft
2 46 (13.53%) Apigee
3 24 (7.06%) IBM
4 13 (3.82%) Oracle
5 7 (2.06%) MuleSoft
6 4 (1.18%) Google
7 3 (0.88%) Salesforce.com
7 3 (0.88%) SAP
7 3 (0.88%) ServiceNow
7 3 (0.88%) WSO2
8 2 (0.59%) Informatica
8 2 (0.59%) Murex
8 2 (0.59%) Symantec
8 2 (0.59%) TIBCO
8 2 (0.59%) TOWER Software
9 1 (0.29%) Capita
9 1 (0.29%) Cognizant
9 1 (0.29%) Cognos
9 1 (0.29%) HP
9 1 (0.29%) OpenLink