Period
to 17 January 2019

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 17 January 2019 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
17 Jan 2019
Same period 2018 Same period 2017
Rank 438 673 622
Rank change year-on-year +235 -51 +32
Contract jobs citing API Design 521 235 253
As % of all contract IT jobs advertised in the UK 0.52% 0.23% 0.26%
As % of the Processes & Methodologies category 0.60% 0.27% 0.31%
Number of daily rates quoted 334 186 172
UK median daily rate £505 £525 £454
Median daily rate % change year-on-year -3.81% +15.64% -3.40%
10th Percentile £361 £348 £325
90th Percentile £636 £638 £590
UK excluding London median daily rate £475 £513 £450
% change year-on-year -7.32% +13.89% -5.41%
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 86,410 86,099 82,940
As % of all contract IT jobs advertised in the UK 86.92% 85.83% 85.20%
Number of daily rates quoted 57,036 57,590 54,781
UK median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +1.19%
10th Percentile £300 £281 £263
90th Percentile £648 £638 £613
UK excluding London median daily rate £425 £405 £400
% change year-on-year +4.86% +1.33% +3.23%
Number of hourly rates quoted 2,199 2,021 2,396
UK median hourly rate £23.50 £23.00 £22.84
Median hourly rate % change year-on-year +2.17% +0.70% -0.70%
10th Percentile £11.25 £11.25 £11.03
90th Percentile £50.02 £49.75 £48.75
UK excluding London median hourly rate £22.50 £24.00 £22.50
% change year-on-year -6.25% +6.67% -10.00%

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 17 January 2019.

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 17 January 2019.

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 17 January 2019. 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 +212 499 £505 -3.81% 122
London +170 313 £525 -4.55% 49
UK excluding London +72 206 £475 -7.32% 78
South East +55 76 £455 -11.22% 13
Midlands +39 48 £500 - 17
North of England +17 34 £475 +35.71% 27
West Midlands +14 33 £590 +18.00% 8
South West -15 21 £475 +18.75% 10
North East - 17 £475 - 7
East Midlands +15 15 £425 -15.00% 9
Scotland +5 13 £450 +9.09% 2
North West 0 11 £500 +42.86% 12
Wales -6 6 £425 +21.43% 1
Yorkshire -13 6 £408 +1.88% 8
East of England -18 6 £388 -29.55% 6
Northern Ireland - 2 £340 - 2

For the 6 months to 17 January 2019, 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.

1 289 (55.47%) Agile Software Development
2 196 (37.62%) Microservices
3 191 (36.66%) RESTful
4 176 (33.78%) TDD
5 166 (31.86%) Java
6 159 (30.52%) Git (software)
7 155 (29.75%) JavaScript
8 151 (28.98%) Amazon AWS
9 128 (24.57%) Microsoft Azure
10 126 (24.18%) Test Automation
11 123 (23.61%) .NET
12 122 (23.42%) Scrum
13 116 (22.26%) Docker
14 106 (20.35%) HTML
15 105 (20.15%) API Development
16 104 (19.96%) Node.js
17 96 (18.43%) AngularJS
18 93 (17.85%) Continuous Integration
18 93 (17.85%) CSS
19 92 (17.66%) REST
20 81 (15.55%) C#
21 80 (15.36%) Python
22 75 (14.40%) Jenkins
23 74 (14.20%) SQL
24 70 (13.44%) OO
25 69 (13.24%) Spring
26 68 (13.05%) Finance
27 65 (12.48%) Software Engineering
27 65 (12.48%) DevOps
28 63 (12.09%) Problem-Solving

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 44 (8.45%) Elasticsearch
2 18 (3.45%) Drupal
3 16 (3.07%) Apache
3 16 (3.07%) Confluence
4 15 (2.88%) Apache Qpid
5 14 (2.69%) Apache Spark
6 12 (2.30%) CMS
7 10 (1.92%) Mule
8 7 (1.34%) Apache Solr
8 7 (1.34%) Documentum
8 7 (1.34%) JBoss
8 7 (1.34%) nginx
8 7 (1.34%) Traefik
9 6 (1.15%) Liferay
9 6 (1.15%) SharePoint
10 5 (0.96%) WebLogic
11 4 (0.77%) Anypoint
11 4 (0.77%) Mule ESB
11 4 (0.77%) Oracle SOA Suite
12 3 (0.58%) Apache Pig
Applications
1 1 (0.19%) Microsoft Office
1 1 (0.19%) MS Visio
Business Applications
1 3 (0.58%) SAP Hybris
2 2 (0.38%) Magento
2 2 (0.38%) Oracle EBS
2 2 (0.38%) Payment Gateway
3 1 (0.19%) BusinessWorks
3 1 (0.19%) SAP ERP
3 1 (0.19%) TIBCO BusinessEvents
Cloud Services
1 151 (28.98%) Amazon AWS
2 128 (24.57%) Microsoft Azure
3 39 (7.49%) GitHub
4 36 (6.91%) Serverless
5 25 (4.80%) Heroku
6 24 (4.61%) PaaS
7 23 (4.41%) SaaS
8 22 (4.22%) Apigee
9 20 (3.84%) Google Cloud Platform
10 19 (3.65%) AWS Lambda
11 17 (3.26%) IaaS
12 8 (1.54%) Amazon EC2
13 7 (1.34%) Amazon Kinesis
13 7 (1.34%) Amazon SQS
14 6 (1.15%) iPaaS
14 6 (1.15%) npm
15 5 (0.96%) Amazon S3
15 5 (0.96%) Azure Functions
15 5 (0.96%) Office 365
16 4 (0.77%) Akamai
Communications & Networking
1 45 (8.64%) HTTP
2 32 (6.14%) SSL
3 26 (4.99%) TCP/IP
4 15 (2.88%) Kerberos
5 8 (1.54%) Unified Communications
6 7 (1.34%) Reverse Proxy
7 5 (0.96%) Network Security
8 3 (0.58%) Firewall
9 2 (0.38%) HTTPS
9 2 (0.38%) Internet
10 1 (0.19%) DNS
10 1 (0.19%) Ethernet
10 1 (0.19%) VoIP
10 1 (0.19%) VPN
10 1 (0.19%) X.509
Database & Business Intelligence
1 56 (10.75%) NoSQL
1 56 (10.75%) PostgreSQL
2 45 (8.64%) MongoDB
3 42 (8.06%) SQL Server
4 41 (7.87%) MySQL
5 31 (5.95%) Relational Database
6 23 (4.41%) Redis
7 14 (2.69%) Apache Cassandra
7 14 (2.69%) Big Data
8 12 (2.30%) Amazon DynamoDB
9 10 (1.92%) Hadoop
10 6 (1.15%) Amazon RDS
11 5 (0.96%) RDBMS
12 4 (0.77%) Blockchain
12 4 (0.77%) DB2
12 4 (0.77%) SQL Server Integration Services
13 3 (0.58%) Apache Hive
13 3 (0.58%) BigQuery
13 3 (0.58%) Couchbase
14 2 (0.38%) Power BI
Development Applications
1 159 (30.52%) Git (software)
2 75 (14.40%) Jenkins
3 51 (9.79%) webpack
4 33 (6.33%) Mocha
5 29 (5.57%) JIRA
6 28 (5.37%) Maven
7 22 (4.22%) TeamCity
8 21 (4.03%) PostCSS
9 19 (3.65%) JUnit
10 18 (3.45%) Visual Studio
11 17 (3.26%) Sonatype Nexus
12 16 (3.07%) Octopus Deploy
13 14 (2.69%) Bitbucket
13 14 (2.69%) Selenium
13 14 (2.69%) Visual Studio Team System
14 12 (2.30%) Grunt
15 11 (2.11%) Bower
15 11 (2.11%) Gradle
15 11 (2.11%) JMeter
15 11 (2.11%) Mockito
General
1 68 (13.05%) Finance
2 43 (8.25%) Retail
3 23 (4.41%) Banking
4 7 (1.34%) Marketing
5 6 (1.15%) Telecoms
6 5 (0.96%) Games
6 5 (0.96%) Investment Banking
6 5 (0.96%) Retail Banking
7 4 (0.77%) Advertising
8 3 (0.58%) Legal
8 3 (0.58%) Manufacturing
9 2 (0.38%) Billing
9 2 (0.38%) Front Office
10 1 (0.19%) Electronics
10 1 (0.19%) Financial Institution
10 1 (0.19%) Publishing
Job Titles
1 318 (61.04%) Developer
2 105 (20.15%) Architect
3 62 (11.90%) Java Developer
4 56 (10.75%) React Developer
5 50 (9.60%) Senior Developer
6 48 (9.21%) .NET Developer
7 43 (8.25%) Technical Architect
8 31 (5.95%) Solutions Architect
9 29 (5.57%) Full Stack Developer
10 26 (4.99%) JavaScript Developer
11 25 (4.80%) Node.js Developer
12 23 (4.41%) Lead Developer
13 22 (4.22%) C# Developer
14 21 (4.03%) Front End Developer (Client-Side Developer)
15 20 (3.84%) .NET Architect
15 20 (3.84%) .NET Technical Architect
16 19 (3.65%) Java Engineer
17 17 (3.26%) Scala Developer
17 17 (3.26%) Web Developer
18 15 (2.88%) C# .NET Developer
Libraries, Frameworks & Software Standards
1 191 (36.66%) RESTful
2 123 (23.61%) .NET
3 106 (20.35%) HTML
4 104 (19.96%) Node.js
5 96 (18.43%) AngularJS
6 93 (17.85%) CSS
7 92 (17.66%) REST
8 69 (13.24%) Spring
9 61 (11.71%) ASP.NET
10 56 (10.75%) Web Services
11 53 (10.17%) JSON
12 51 (9.79%) Redux
12 51 (9.79%) WCF
13 50 (9.60%) SOAP
14 49 (9.40%) Swagger
15 44 (8.45%) .NET Framework
15 44 (8.45%) Chai
16 42 (8.06%) HTML5
17 40 (7.68%) Enzyme
17 40 (7.68%) React
Miscellaneous
1 47 (9.02%) User Experience
2 41 (7.87%) Analytical Skills
3 30 (5.76%) Mobile App
4 29 (5.57%) Algorithms
5 28 (5.37%) Data Structures
6 27 (5.18%) Data Centre
7 25 (4.80%) Enterprise Software
8 18 (3.45%) Greenfield Project
8 18 (3.45%) Self-Motivation
9 12 (2.30%) Cloud Native
10 9 (1.73%) Linux Command Line
11 8 (1.54%) Blackberry
11 8 (1.54%) Virtual Team
12 7 (1.34%) Fintech
13 6 (1.15%) Management Information System
13 6 (1.15%) Video on Demand
14 5 (0.96%) Client/Server
14 5 (0.96%) Public Cloud
14 5 (0.96%) Video\Live Streaming
15 4 (0.77%) Private Cloud
Operating Systems
1 59 (11.32%) Linux
2 36 (6.91%) Windows
3 32 (6.14%) Unix
4 16 (3.07%) Android
5 12 (2.30%) Apple iOS
6 6 (1.15%) Mac OS X
7 3 (0.58%) AIX
7 3 (0.58%) HPUX
7 3 (0.58%) Solaris
8 2 (0.38%) Red Hat Enterprise Linux
9 1 (0.19%) Windows Server
Processes & Methodologies
1 289 (55.47%) Agile Software Development
2 196 (37.62%) Microservices
3 176 (33.78%) TDD
4 126 (24.18%) Test Automation
5 122 (23.42%) Scrum
6 105 (20.15%) API Development
7 93 (17.85%) Continuous Integration
8 70 (13.44%) OO
9 65 (12.48%) DevOps
9 65 (12.48%) Software Engineering
10 63 (12.09%) Problem-Solving
11 62 (11.90%) Kanban
12 60 (11.52%) Unit Testing
13 59 (11.32%) SOA
14 57 (10.94%) BDD
15 56 (10.75%) Web Development
16 52 (9.98%) MVC
17 49 (9.40%) Continuous Delivery
18 44 (8.45%) Open Source
19 43 (8.25%) Mentoring
Programming Languages
1 166 (31.86%) Java
2 155 (29.75%) JavaScript
3 81 (15.55%) C#
4 80 (15.36%) Python
5 74 (14.20%) SQL
6 46 (8.83%) ES6
7 44 (8.45%) PHP
8 33 (6.33%) Java 8
9 25 (4.80%) Scala
10 20 (3.84%) Perl
11 18 (3.45%) Ruby
12 17 (3.26%) Go
13 16 (3.07%) TypeScript
14 12 (2.30%) PHP 5
15 9 (1.73%) C++
15 9 (1.73%) PHP 7
16 8 (1.54%) Bash Shell
16 8 (1.54%) Objective-C
17 7 (1.34%) Groovy
17 7 (1.34%) PowerShell
Qualifications
1 12 (2.30%) Degree
2 9 (1.73%) CITP
2 9 (1.73%) Security Cleared
3 5 (0.96%) SC Cleared
4 4 (0.77%) CISSP
4 4 (0.77%) DV Cleared
5 3 (0.58%) CCNA
5 3 (0.58%) Cisco Certification
5 3 (0.58%) CompTIA Security+
5 3 (0.58%) GIAC
5 3 (0.58%) Linux+ Certification
5 3 (0.58%) MCSE
5 3 (0.58%) Microsoft Certification
5 3 (0.58%) Network+ Certification
5 3 (0.58%) SANS
5 3 (0.58%) SSCP
6 2 (0.38%) ISEB
6 2 (0.38%) ISTQB
7 1 (0.19%) BPSS Clearance
Quality Assurance & Compliance
1 28 (5.37%) QA
2 9 (1.73%) WCAG
3 3 (0.58%) PSD2
4 1 (0.19%) Data Quality
4 1 (0.19%) GDPR
System Software
1 116 (22.26%) Docker
2 15 (2.88%) Apache ZooKeeper
3 6 (1.15%) Active Directory
4 3 (0.58%) vSphere
5 1 (0.19%) Virtual Machines
5 1 (0.19%) Virtual Servers
5 1 (0.19%) VMware Infrastructure
Systems Management
1 50 (9.60%) Kubernetes
2 28 (5.37%) Ansible
3 21 (4.03%) Opscode Chef
4 18 (3.45%) Puppet
5 13 (2.50%) Terraform
6 10 (1.92%) Consul
7 9 (1.73%) Prometheus
8 7 (1.34%) Rancher
9 4 (0.77%) rkt
10 3 (0.58%) CloudHub
10 3 (0.58%) Kibana
10 3 (0.58%) Salt
11 1 (0.19%) HP Fortify
11 1 (0.19%) Single Sign-On
11 1 (0.19%) TIBCO Hawk
Vendors
1 33 (6.33%) Microsoft
2 26 (4.99%) Apiary
3 24 (4.61%) Oracle
4 23 (4.41%) Google
5 16 (3.07%) AppDynamics
5 16 (3.07%) MuleSoft
6 13 (2.50%) Twitter
7 10 (1.92%) WSO2
8 7 (1.34%) SOASTA, Inc
8 7 (1.34%) Splunk
9 5 (0.96%) SAP
10 3 (0.58%) Brightcove
10 3 (0.58%) hybris
10 3 (0.58%) IBM
11 2 (0.38%) Adobe
11 2 (0.38%) Amdocs
11 2 (0.38%) HP
11 2 (0.38%) NetCracker
11 2 (0.38%) Siebel
11 2 (0.38%) Zend