Period
to 20 November 2018

The following table provides summary statistics for contract job vacancies 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 20 November 2018 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
6 months to
20 Nov 2018
Same period 2017 Same period 2016
Rank 428 610 660
Rank change year-on-year +182 +50 +41
Contract jobs citing API Design 560 285 238
As % of all contract IT jobs advertised in the UK 0.54% 0.28% 0.23%
As % of the Processes & Methodologies category 0.62% 0.32% 0.27%
Number of daily rates quoted 374 224 159
UK median daily rate £505 £525 £440
Median daily rate % change year-on-year -3.81% +19.32% -1.12%
10th Percentile £363 £350 £313
90th Percentile £625 £650 £588
UK excluding London median daily rate £475 £525 £465
% change year-on-year -9.52% +12.90% +9.41%
Number of hourly rates quoted 2 0 0
UK median hourly rate £35.95 - -
UK excluding London median hourly rate £35.95 - -

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 with a requirement for process or methodology skills.

All Process and Methodology Skills
UK
Contract vacancies with a requirement for process or methodology skills 89,850 87,697 88,614
As % of all contract IT jobs advertised in the UK 86.36% 85.74% 85.19%
Number of daily rates quoted 59,462 58,317 58,473
UK median daily rate £460 £450 £425
Median daily rate % change year-on-year +2.22% +5.88% +3.03%
10th Percentile £300 £277 £263
90th Percentile £638 £625 £600
UK excluding London median daily rate £425 £400 £400
% change year-on-year +6.25% - +4.99%
Number of hourly rates quoted 2,321 2,108 2,455
UK median hourly rate £22.00 £23.14 £22.50
Median hourly rate % change year-on-year -4.93% +2.84% +1.74%
10th Percentile £11.25 £11.25 £11.25
90th Percentile £50.75 £49.75 £48.00
UK excluding London median hourly rate £21.20 £24.00 £22.50
% change year-on-year -11.67% +6.67% -

API Design
Job Vacancy Trend

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

Job vacancy trend for API Design in the UK

API Design
Contractor Daily Rate Trend

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

Contractor daily rate trend for API Design in the UK

API Design
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing API Design over the 6 months to 20 November 2018.

Contractor daily rate histogram for API Design in the UK

API Design
Contractor Hourly Rate Trend

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

Contractor hourly rate trend for API Design in the UK

API Design
Contractor Hourly Rate Histogram

The hourly rate distribution of IT jobs citing API Design over the 6 months to 20 November 2018.

Contractor hourly rate histogram for API Design in the UK

API Design
Top 16 Contract Locations

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 UK over the 6 months to 20 November 2018. 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
England +191 541 £505 -6.05% 99
London +196 372 £518 -3.72% 55
UK excluding London +6 184 £475 -9.52% 47
South East 0 61 £455 -13.33% 14
Midlands +17 52 £505 -8.18% 13
West Midlands -1 35 £595 +5.78% 5
North of England +2 31 £500 +12.36% 11
East Midlands +13 17 £413 -13.16% 8
South West -13 17 £500 +25.00% 4
North West +4 16 £500 +12.36% 2
Scotland -14 12 £413 +10.00% 2
Yorkshire -7 9 £450 +12.50% 4
East of England -35 7 £388 -29.55% 3
North East - 6 £393 - 5
Wales -21 2 - -
Northern Ireland - 2 £340 - 1

For the 6 months to 20 November 2018, IT contractor jobs citing API Design 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 with a requirement for API Design.

1 310 (55.36%) Agile Software Development
2 223 (39.82%) RESTful
3 197 (35.18%) Microservices
4 196 (35.00%) TDD
5 180 (32.14%) Java
6 165 (29.46%) Git (software)
7 161 (28.75%) Amazon AWS
8 153 (27.32%) JavaScript
9 136 (24.29%) Test Automation
10 134 (23.93%) Scrum
11 133 (23.75%) Docker
12 128 (22.86%) Node.js
13 106 (18.93%) Microsoft Azure
14 98 (17.50%) .NET
15 95 (16.96%) HTML
16 94 (16.79%) Continuous Integration
17 93 (16.61%) API Development
18 90 (16.07%) AngularJS
19 89 (15.89%) REST
20 86 (15.36%) Python
20 86 (15.36%) Jenkins
21 85 (15.18%) CSS
22 79 (14.11%) OO
22 79 (14.11%) SOA
23 77 (13.75%) Problem-Solving
24 76 (13.57%) DevOps
25 72 (12.86%) webpack
25 72 (12.86%) Redux
25 72 (12.86%) SQL
25 72 (12.86%) Unit Testing

API Design
Co-occurring IT Skills 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 43 (7.68%) Elasticsearch
2 16 (2.86%) Drupal
3 13 (2.32%) Apache Qpid
3 13 (2.32%) Apache Spark
4 12 (2.14%) Mule
5 10 (1.79%) Apache Solr
6 8 (1.43%) Apache
6 8 (1.43%) CMS
6 8 (1.43%) Confluence
6 8 (1.43%) Oracle SOA Suite
7 6 (1.07%) JBoss
8 5 (0.89%) Anypoint
8 5 (0.89%) Mule ESB
8 5 (0.89%) WebLogic
9 4 (0.71%) Tomcat
10 3 (0.54%) Apache Pig
10 3 (0.54%) Documentum
10 3 (0.54%) Liferay
11 2 (0.36%) Adobe Experience Manager
11 2 (0.36%) Ethereum
Applications
1 7 (1.25%) Microsoft Excel
1 7 (1.25%) Microsoft PowerPoint
2 1 (0.18%) MS Visio
Business Applications
1 4 (0.71%) Magento
2 3 (0.54%) SAP Hybris
3 2 (0.36%) Distributed Ledger
3 2 (0.36%) Odoo
3 2 (0.36%) Oracle EBS
3 2 (0.36%) Payment Gateway
3 2 (0.36%) SAP ERP
3 2 (0.36%) SAP Oil and Gas
4 1 (0.18%) BusinessWorks
4 1 (0.18%) R3 Corda
4 1 (0.18%) TIBCO BusinessEvents
Cloud Services
1 161 (28.75%) Amazon AWS
2 106 (18.93%) Microsoft Azure
3 38 (6.79%) Serverless
4 37 (6.61%) GitHub
5 30 (5.36%) Heroku
6 25 (4.46%) AWS Lambda
7 24 (4.29%) SaaS
8 21 (3.75%) PaaS
9 19 (3.39%) Amazon EC2
9 19 (3.39%) Apigee
10 17 (3.04%) Amazon S3
11 16 (2.86%) Google Cloud Platform
12 13 (2.32%) IaaS
13 10 (1.79%) Amazon SQS
14 9 (1.61%) Azure Functions
15 8 (1.43%) iPaaS
16 7 (1.25%) Amazon Kinesis
16 7 (1.25%) npm
17 6 (1.07%) Trello
18 5 (0.89%) Akamai
Communications & Networking
1 41 (7.32%) HTTP
2 31 (5.54%) TCP/IP
3 30 (5.36%) SSL
4 13 (2.32%) Kerberos
5 9 (1.61%) Internet
6 7 (1.25%) Network Security
7 4 (0.71%) Unified Communications
8 3 (0.54%) Firewall
8 3 (0.54%) Reverse Proxy
9 1 (0.18%) Ethernet
9 1 (0.18%) VoIP
9 1 (0.18%) VPN
9 1 (0.18%) WebEx
Database & Business Intelligence
1 68 (12.14%) NoSQL
2 53 (9.46%) PostgreSQL
3 40 (7.14%) Relational Database
4 36 (6.43%) MongoDB
5 35 (6.25%) MySQL
6 23 (4.11%) Redis
7 22 (3.93%) SQL Server
8 19 (3.39%) Amazon DynamoDB
9 18 (3.21%) Big Data
10 16 (2.86%) Apache Cassandra
11 13 (2.32%) Hadoop
12 7 (1.25%) RDBMS
13 6 (1.07%) Amazon RDS
13 6 (1.07%) Blockchain
14 3 (0.54%) Apache Hive
14 3 (0.54%) BigQuery
15 2 (0.36%) Couchbase
15 2 (0.36%) DB2
15 2 (0.36%) SAP HANA
16 1 (0.18%) HBase
Development Applications
1 165 (29.46%) Git (software)
2 86 (15.36%) Jenkins
3 72 (12.86%) webpack
4 47 (8.39%) Mocha
5 26 (4.64%) JIRA
5 26 (4.64%) PostCSS
6 25 (4.46%) TeamCity
7 23 (4.11%) Maven
8 21 (3.75%) Octopus Deploy
9 19 (3.39%) JUnit
10 15 (2.68%) JMeter
10 15 (2.68%) Selenium
11 12 (2.14%) Bitbucket
11 12 (2.14%) CircleCI
11 12 (2.14%) Mockito
12 11 (1.96%) Cucumber
12 11 (1.96%) Sonatype Nexus
13 10 (1.79%) Babel
13 10 (1.79%) Gatling
13 10 (1.79%) git-flow
General
1 67 (11.96%) Finance
2 57 (10.18%) Retail
3 22 (3.93%) Banking
4 11 (1.96%) Marketing
5 9 (1.61%) Telecoms
6 7 (1.25%) Games
7 5 (0.89%) Advertising
7 5 (0.89%) Manufacturing
7 5 (0.89%) Retail Banking
8 4 (0.71%) Electronics
8 4 (0.71%) Investment Banking
9 3 (0.54%) Billing
9 3 (0.54%) Financial Institution
9 3 (0.54%) Law
10 2 (0.36%) Front Office
10 2 (0.36%) Publishing
11 1 (0.18%) Legal
11 1 (0.18%) Prime Brokerage
Job Titles
1 347 (61.96%) Developer
2 114 (20.36%) Architect
3 72 (12.86%) React Developer
4 67 (11.96%) Java Developer
5 52 (9.29%) Technical Architect
6 50 (8.93%) Senior Developer
7 44 (7.86%) .NET Developer
8 35 (6.25%) Full Stack Developer
9 34 (6.07%) JavaScript Developer
10 28 (5.00%) Node.js Developer
10 28 (5.00%) Solutions Architect
11 27 (4.82%) Front End Developer (Client-Side Developer)
12 24 (4.29%) Scala Developer
13 23 (4.11%) Senior Java Developer
14 22 (3.93%) .NET Architect
14 22 (3.93%) .NET Technical Architect
15 21 (3.75%) Digital Developer
15 21 (3.75%) Lead Developer
16 19 (3.39%) Web Developer
17 18 (3.21%) Backend Developer
Libraries, Frameworks & Software Standards
1 223 (39.82%) RESTful
2 128 (22.86%) Node.js
3 98 (17.50%) .NET
4 95 (16.96%) HTML
5 90 (16.07%) AngularJS
6 89 (15.89%) REST
7 85 (15.18%) CSS
8 72 (12.86%) Redux
9 68 (12.14%) Spring
10 64 (11.43%) Chai
10 64 (11.43%) Web Services
11 57 (10.18%) Enzyme
12 55 (9.82%) React
13 53 (9.46%) ASP.NET
14 51 (9.11%) WCF
15 48 (8.57%) JSON
16 46 (8.21%) SOAP
17 43 (7.68%) Swagger
18 41 (7.32%) Spring Boot
18 41 (7.32%) XML
Miscellaneous
1 65 (11.61%) User Experience
2 46 (8.21%) Analytical Skills
3 44 (7.86%) Computer Science
4 37 (6.61%) Algorithms
5 36 (6.43%) Data Structures
6 32 (5.71%) Mobile App
7 29 (5.18%) Data Centre
7 29 (5.18%) Enterprise Software
8 20 (3.57%) Greenfield Project
9 13 (2.32%) Self-Motivation
10 12 (2.14%) Linux Command Line
11 10 (1.79%) Management Information System
12 6 (1.07%) Fintech
12 6 (1.07%) iPad
12 6 (1.07%) iPhone
12 6 (1.07%) Video on Demand
13 5 (0.89%) Blackberry
13 5 (0.89%) Cloud Native
13 5 (0.89%) Online Games
13 5 (0.89%) Video\Live Streaming
Operating Systems
1 60 (10.71%) Linux
2 41 (7.32%) Unix
3 39 (6.96%) Windows
4 13 (2.32%) Apple iOS
5 12 (2.14%) Android
6 6 (1.07%) Mac OS X
7 4 (0.71%) Red Hat Enterprise Linux
8 3 (0.54%) AIX
8 3 (0.54%) HPUX
8 3 (0.54%) Solaris
9 1 (0.18%) CentOS
9 1 (0.18%) VMS
Processes & Methodologies
1 310 (55.36%) Agile Software Development
2 197 (35.18%) Microservices
3 196 (35.00%) TDD
4 136 (24.29%) Test Automation
5 134 (23.93%) Scrum
6 94 (16.79%) Continuous Integration
7 93 (16.61%) API Development
8 79 (14.11%) OO
8 79 (14.11%) SOA
9 77 (13.75%) Problem-Solving
10 76 (13.57%) DevOps
11 72 (12.86%) Unit Testing
12 71 (12.68%) BDD
13 70 (12.50%) Software Engineering
14 69 (12.32%) Kanban
15 57 (10.18%) Continuous Delivery
16 56 (10.00%) Mentoring
17 55 (9.82%) Web Development
18 52 (9.29%) E-Commerce
19 51 (9.11%) MVC
Programming Languages
1 180 (32.14%) Java
2 153 (27.32%) JavaScript
3 86 (15.36%) Python
4 72 (12.86%) SQL
5 62 (11.07%) C#
6 54 (9.64%) ES6
7 48 (8.57%) Scala
8 37 (6.61%) PHP
9 36 (6.43%) Java 8
10 28 (5.00%) Go
11 23 (4.11%) Ruby
12 18 (3.21%) TypeScript
13 16 (2.86%) Perl
14 13 (2.32%) Bash Shell
15 12 (2.14%) C++
15 12 (2.14%) PHP 5
16 10 (1.79%) Groovy
16 10 (1.79%) Objective-C
17 7 (1.25%) Kotlin
18 6 (1.07%) Apple Swift
Qualifications
1 21 (3.75%) Degree
2 10 (1.79%) CITP
2 10 (1.79%) Security Cleared
3 8 (1.43%) Computer Science Degree
4 6 (1.07%) SC Cleared
5 4 (0.71%) DV Cleared
6 3 (0.54%) CCNA
6 3 (0.54%) Cisco Certification
6 3 (0.54%) CISSP
6 3 (0.54%) CompTIA Security+
6 3 (0.54%) GIAC
6 3 (0.54%) Linux+ Certification
6 3 (0.54%) MCSE
6 3 (0.54%) Microsoft Certification
6 3 (0.54%) Network+ Certification
6 3 (0.54%) SANS
6 3 (0.54%) SSCP
7 2 (0.36%) ISEB
7 2 (0.36%) ISTQB
7 2 (0.36%) TOGAF Certification
Quality Assurance & Compliance
1 19 (3.39%) QA
2 4 (0.71%) Data Quality
3 3 (0.54%) GDPR
3 3 (0.54%) WCAG
4 2 (0.36%) COBIT
4 2 (0.36%) Sarbanes-Oxley
5 1 (0.18%) PSD2
System Software
1 133 (23.75%) Docker
2 13 (2.32%) Apache ZooKeeper
3 4 (0.71%) Virtual Servers
4 3 (0.54%) vSphere
5 2 (0.36%) Active Directory
5 2 (0.36%) Virtual Machines
6 1 (0.18%) VMware Infrastructure
Systems Management
1 58 (10.36%) Kubernetes
2 29 (5.18%) Ansible
3 19 (3.39%) Puppet
4 18 (3.21%) Opscode Chef
4 18 (3.21%) Terraform
5 15 (2.68%) Prometheus
6 12 (2.14%) Consul
7 3 (0.54%) CloudHub
7 3 (0.54%) Grafana
7 3 (0.54%) Graphite
7 3 (0.54%) Kibana
7 3 (0.54%) Packer
7 3 (0.54%) Rancher
7 3 (0.54%) rkt
7 3 (0.54%) Salt
8 2 (0.36%) Oracle Identity Manager
9 1 (0.18%) Docker Swarm
9 1 (0.18%) HP Fortify
9 1 (0.18%) TIBCO Hawk
Vendors
1 37 (6.61%) Apiary
2 29 (5.18%) Microsoft
3 24 (4.29%) MuleSoft
4 23 (4.11%) Oracle
5 19 (3.39%) Twitter
6 18 (3.21%) Google
7 15 (2.68%) AppDynamics
8 13 (2.32%) WSO2
9 11 (1.96%) SAP
10 10 (1.79%) SOASTA, Inc
11 4 (0.71%) Salesforce.com
12 3 (0.54%) Brightcove
12 3 (0.54%) Dynatrace
12 3 (0.54%) HP
12 3 (0.54%) hybris
12 3 (0.54%) Splunk
13 2 (0.36%) Amdocs
13 2 (0.36%) Atlassian
13 2 (0.36%) NetCracker
13 2 (0.36%) Zend