Period
to 16 December 2017

The following table provides summary statistics for contract job vacancies advertised in England with a requirement for API Design skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited API Design 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 Design
UK > England
6 months to
16 Dec 2017
Same period 2016 Same period 2015
Rank 612 645 676
Rank change year-on-year +33 +31 +80
Contract jobs citing API Design 239 217 200
As % of all contract IT jobs advertised in England 0.25% 0.23% 0.19%
As % of the Processes & Methodologies category 0.30% 0.27% 0.23%
Number of daily rates quoted 191 145 165
England median daily rate £525 £450 £450
Median daily rate % change year-on-year +16.67% - -18.18%
10th Percentile £350 £325 £326
90th Percentile £650 £588 £604
UK median daily rate £525 £440 £450
% change year-on-year +19.32% -2.22% -18.18%
Number of hourly rates quoted 0 0 0
England median hourly rate - - -
UK median hourly rate - - -

API Design 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 England with a requirement for process or methodology skills.

All Process and Methodology Skills
England
Contract vacancies with a requirement for process or methodology skills 79936 80324 85230
As % of all contract IT jobs advertised in England 84.66% 84.17% 82.34%
Number of daily rates quoted 53936 53485 56277
England median daily rate £450 £430 £425
Median daily rate % change year-on-year +4.65% +1.18% +6.25%
10th Percentile £288 £268 £263
90th Percentile £638 £613 £600
UK median daily rate £450 £425 £420
% change year-on-year +5.88% +1.19% +5.00%
Number of hourly rates quoted 1815 2124 2532
England median hourly rate £25.00 £24.47 £22.00
Median hourly rate % change year-on-year +2.17% +11.23% +15.79%
10th Percentile £11.46 £11.38 £11.25
90th Percentile £50.00 £48.75 £47.50
UK median hourly rate £25.00 £24.00 £22.50
% change year-on-year +4.17% +6.67% +18.42%

API Design
Job Vacancy Trend in England

Job postings citing API Design as a percentage of all IT jobs advertised in England.

Job vacancy trend for API Design in England

API Design
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for API Design in England

API Design
Contractor Daily Rate Histogram in England

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

Contractor daily rate histogram for API Design in England

API Design
Contractor Hourly Rate Trend in England

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

Contractor hourly rate trend for API Design in England

API Design
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing API Design within the England 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
London -67 123 £550 +25.36% 23
East of England +2 40 £550 +10.00% 5
South East +4 32 £513 +32.26% 7
Midlands +39 26 £550 +10.00% 3
West Midlands +27 13 £580 +16.00% 2
East Midlands - 12 £475 - 1
South West +8 10 £400 -27.27%
North of England +51 8 £350 +6.46% 2
North West +4 4 £350 +6.46%
Yorkshire - 4 £400 - 1
API Design
UK

For the 6 months to 16 December 2017, IT contractor jobs citing API Design 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 England region with a requirement for API Design.

1 160 (66.95%) Agile Software Development
2 103 (43.10%) RESTful
3 94 (39.33%) TDD
4 75 (31.38%) Git (software)
5 73 (30.54%) JSON
6 71 (29.71%) Scrum
7 69 (28.87%) JavaScript
8 62 (25.94%) Java
9 59 (24.69%) CSS
9 59 (24.69%) Finance
10 58 (24.27%) Node.js
11 56 (23.43%) Test Automation
12 55 (23.01%) HTML
13 54 (22.59%) REST
14 48 (20.08%) Jenkins
14 48 (20.08%) Web Services
15 47 (19.67%) Amazon AWS
15 47 (19.67%) Docker
15 47 (19.67%) API Development
16 46 (19.25%) Microservices
17 45 (18.83%) XML
18 44 (18.41%) SOA
18 44 (18.41%) JSON Schema
19 40 (16.74%) Swagger
20 39 (16.32%) SOAP
21 37 (15.48%) Banking
21 37 (15.48%) ES6
22 36 (15.06%) DevOps
22 36 (15.06%) Continuous Integration
23 34 (14.23%) HTML5

API Design
Co-occurring IT Skills in England 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 14 (5.86%) Cloud Foundry
2 13 (5.44%) JBoss
2 13 (5.44%) WebLogic
3 12 (5.02%) Confluence
4 10 (4.18%) Apache
4 10 (4.18%) Mule
5 8 (3.35%) Oracle SOA Suite
6 5 (2.09%) CMS
7 2 (0.84%) Apache Spark
7 2 (0.84%) BizTalk Server
7 2 (0.84%) Elasticsearch
7 2 (0.84%) IIS
7 2 (0.84%) nginx
7 2 (0.84%) WordPress
8 1 (0.42%) Adobe Experience Manager
8 1 (0.42%) Apache ServiceMix
8 1 (0.42%) Apache Solr
8 1 (0.42%) CloudStack
8 1 (0.42%) Kentico
8 1 (0.42%) Mule ESB
Applications
1 3 (1.26%) Photoshop
2 1 (0.42%) Adobe Illustrator
Business Applications
1 1 (0.42%) Magento
1 1 (0.42%) Odoo
Cloud Services
1 47 (19.67%) Amazon AWS
2 25 (10.46%) Microsoft Azure
3 21 (8.79%) Serverless
4 18 (7.53%) PaaS
5 17 (7.11%) Heroku
6 13 (5.44%) GitHub
7 9 (3.77%) IaaS
7 9 (3.77%) SaaS
8 7 (2.93%) Amazon EC2
9 6 (2.51%) Amazon ELB
10 5 (2.09%) Amazon ElastiCache
10 5 (2.09%) Amazon Kinesis
10 5 (2.09%) Amazon S3
10 5 (2.09%) Virtual Private Cloud
11 4 (1.67%) Twilio
12 3 (1.26%) Google Cloud Platform
12 3 (1.26%) OpenShift
13 2 (0.84%) Cloud Computing
13 2 (0.84%) npm
13 2 (0.84%) Yarn
Communications & Networking
1 29 (12.13%) HTTP
2 23 (9.62%) TCP/IP
3 20 (8.37%) SSL
4 7 (2.93%) Network Security
5 5 (2.09%) DNS
6 3 (1.26%) Internet
7 2 (0.84%) LDAP
7 2 (0.84%) SMTP
7 2 (0.84%) X.509
8 1 (0.42%) Bluetooth
8 1 (0.42%) Firewall
8 1 (0.42%) SMS
8 1 (0.42%) VPN
8 1 (0.42%) Wireshark
Database & Business Intelligence
1 27 (11.30%) Relational Database
2 22 (9.21%) NoSQL
3 19 (7.95%) SQL Server
4 12 (5.02%) PostgreSQL
5 9 (3.77%) Big Data
6 7 (2.93%) Hadoop
6 7 (2.93%) MySQL
7 6 (2.51%) Redis
7 6 (2.51%) SQL Server Integration Services
8 5 (2.09%) RDBMS
9 4 (1.67%) Amazon Redshift
10 3 (1.26%) Azure SQL Database
10 3 (1.26%) Data Warehouse
10 3 (1.26%) DB2
10 3 (1.26%) SQL Server 2008
11 2 (0.84%) Apache Cassandra
11 2 (0.84%) Apache Hive
11 2 (0.84%) Bigtable
11 2 (0.84%) MongoDB
11 2 (0.84%) Neo4j
Development Applications
1 75 (31.38%) Git (software)
2 48 (20.08%) Jenkins
3 32 (13.39%) webpack
4 28 (11.72%) Maven
5 25 (10.46%) JIRA
6 23 (9.62%) Subversion
7 20 (8.37%) Babel
8 19 (7.95%) Mocha
9 16 (6.69%) Gerrit
9 16 (6.69%) Sinon.JS
10 9 (3.77%) Bitbucket
10 9 (3.77%) Selenium
11 7 (2.93%) git-flow
11 7 (2.93%) Karma Test Runner
12 6 (2.51%) Cucumber
12 6 (2.51%) TeamCity
13 5 (2.09%) Eclipse
13 5 (2.09%) Gradle
13 5 (2.09%) PHPUnit
13 5 (2.09%) SoapUI
General
1 59 (24.69%) Finance
2 37 (15.48%) Banking
3 29 (12.13%) Telecoms
4 27 (11.30%) Electronics
5 26 (10.88%) Marketing
6 25 (10.46%) Manufacturing
7 13 (5.44%) Retail
8 8 (3.35%) Billing
9 5 (2.09%) Retail Banking
10 4 (1.67%) Advertising
10 4 (1.67%) International Banking
11 3 (1.26%) Investment Banking
12 2 (0.84%) Back Office
12 2 (0.84%) Games
13 1 (0.42%) Corporate Banking
13 1 (0.42%) Front Office
13 1 (0.42%) Legal
13 1 (0.42%) Publishing
Job Titles
1 112 (46.86%) Developer
2 67 (28.03%) Architect
3 24 (10.04%) Full Stack Developer
4 21 (8.79%) Consultant
4 21 (8.79%) JavaScript Developer
5 20 (8.37%) Node.js Developer
5 20 (8.37%) Solutions Architect
6 19 (7.95%) Technical Architect
7 18 (7.53%) XML Consultant
7 18 (7.53%) XML Specialist
8 14 (5.86%) .NET Developer
8 14 (5.86%) Analyst
8 14 (5.86%) Front End Developer (Client-Side Developer)
8 14 (5.86%) Java Developer
9 8 (3.35%) Business Analyst
9 8 (3.35%) Designer
9 8 (3.35%) PHP Developer
9 8 (3.35%) Senior Developer
9 8 (3.35%) Technical Analyst
9 8 (3.35%) Technical Business Analyst
Libraries, Frameworks & Software Standards
1 103 (43.10%) RESTful
2 73 (30.54%) JSON
3 59 (24.69%) CSS
4 58 (24.27%) Node.js
5 55 (23.01%) HTML
6 54 (22.59%) REST
7 48 (20.08%) Web Services
8 45 (18.83%) XML
9 44 (18.41%) JSON Schema
10 40 (16.74%) Swagger
11 39 (16.32%) SOAP
12 34 (14.23%) HTML5
13 32 (13.39%) Middleware
14 30 (12.55%) React
15 29 (12.13%) Spring
16 28 (11.72%) AngularJS
16 28 (11.72%) CSS3
17 26 (10.88%) OAuth
17 26 (10.88%) Redux
18 25 (10.46%) XSLT
Miscellaneous
1 32 (13.39%) Greenfield Project
2 15 (6.28%) User Experience
3 11 (4.60%) Enterprise Software
4 8 (3.35%) Virtual Team
5 7 (2.93%) iPad
5 7 (2.93%) iPhone
6 6 (2.51%) Analytical Skills
6 6 (2.51%) Computer Science
7 5 (2.09%) Mobile App
8 4 (1.67%) Algorithms
8 4 (1.67%) Data Structures
9 3 (1.26%) Client/Server
9 3 (1.26%) Hybrid Cloud
9 3 (1.26%) Spread Betting
10 2 (0.84%) Management Information System
10 2 (0.84%) NHS
10 2 (0.84%) Online Gambling
10 2 (0.84%) Public Cloud
10 2 (0.84%) STB
10 2 (0.84%) Video\Live Streaming
Operating Systems
1 24 (10.04%) Linux
2 14 (5.86%) Unix
3 13 (5.44%) Apple iOS
4 11 (4.60%) Android
5 10 (4.18%) Red Hat Enterprise Linux
5 10 (4.18%) Windows
6 8 (3.35%) Solaris
7 5 (2.09%) AIX
7 5 (2.09%) HPUX
7 5 (2.09%) Mac OS X
Processes & Methodologies
1 160 (66.95%) Agile Software Development
2 94 (39.33%) TDD
3 71 (29.71%) Scrum
4 56 (23.43%) Test Automation
5 47 (19.67%) API Development
6 46 (19.25%) Microservices
7 44 (18.41%) SOA
8 36 (15.06%) Continuous Integration
8 36 (15.06%) DevOps
9 33 (13.81%) Configuration Management
10 32 (13.39%) Open Source
11 31 (12.97%) Continuous Delivery
12 30 (12.55%) BDD
12 30 (12.55%) Business Intelligence
12 30 (12.55%) Kanban
13 29 (12.13%) Web Development
14 27 (11.30%) Unit Testing
15 26 (10.88%) User Stories
16 25 (10.46%) Digital Marketing
16 25 (10.46%) Programme Management
Programming Languages
1 69 (28.87%) JavaScript
2 62 (25.94%) Java
3 37 (15.48%) ES6
4 30 (12.55%) Python
5 27 (11.30%) SQL
5 27 (11.30%) TypeScript
6 25 (10.46%) Ruby
7 23 (9.62%) XPath
8 19 (7.95%) C#
8 19 (7.95%) PHP
9 8 (3.35%) Groovy
10 7 (2.93%) Apple Swift
10 7 (2.93%) Objective-C
10 7 (2.93%) Scala
11 6 (2.51%) C
11 6 (2.51%) Perl
12 5 (2.09%) PL/SQL
13 4 (1.67%) Go
13 4 (1.67%) Shell Script
14 3 (1.26%) T-SQL
Qualifications
1 6 (2.51%) Security Cleared
2 5 (2.09%) Degree
3 3 (1.26%) ISEB
3 3 (1.26%) ISTQB
4 2 (0.84%) AWS Certification
5 1 (0.42%) Computer Science Degree
5 1 (0.42%) Master's Degree
5 1 (0.42%) SC Cleared
Quality Assurance & Compliance
1 12 (5.02%) QA
2 5 (2.09%) Data Quality
3 1 (0.42%) PSD2
System Software
1 47 (19.67%) Docker
2 2 (0.84%) Apache ZooKeeper
3 1 (0.42%) Active Directory
3 1 (0.42%) Virtual Machines
3 1 (0.42%) Virtual Servers
3 1 (0.42%) VMware Infrastructure
Systems Management
1 23 (9.62%) Ansible
2 15 (6.28%) Opscode Chef
3 13 (5.44%) Puppet
4 10 (4.18%) Kubernetes
5 4 (1.67%) Terraform
6 2 (0.84%) Consul
6 2 (0.84%) Mesos
7 1 (0.42%) Business Desktop Deployment
7 1 (0.42%) Grafana
7 1 (0.42%) Graphite
7 1 (0.42%) Hadoop YARN
7 1 (0.42%) Kibana
7 1 (0.42%) Packer
Vendors
1 25 (10.46%) SAP
2 16 (6.69%) Oracle
3 15 (6.28%) WSO2
4 13 (5.44%) Microsoft
5 9 (3.77%) Salesforce.com
6 7 (2.93%) Teradata
7 6 (2.51%) Apigee
7 6 (2.51%) MuleSoft
8 5 (2.09%) Google
8 5 (2.09%) Red Hat
8 5 (2.09%) webMethods
9 3 (1.26%) Apiary
9 3 (1.26%) hybris
9 3 (1.26%) Twitter
9 3 (1.26%) Xamarin
10 2 (0.84%) CA
10 2 (0.84%) Sony
11 1 (0.42%) Adobe
11 1 (0.42%) HP
11 1 (0.42%) VMware