Period
to 17 January 2019

The following table provides summary statistics for contract job vacancies 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 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 Development
UK
6 months to
17 Jan 2019
Same period 2018 Same period 2017
Rank 383 399 577
Rank change year-on-year +16 +178 +57
Contract jobs citing API Development 660 617 302
As % of all contract IT jobs advertised in the UK 0.66% 0.62% 0.31%
As % of the Processes & Methodologies category 0.76% 0.72% 0.36%
Number of daily rates quoted 490 443 239
UK median daily rate £475 £450 £475
Median daily rate % change year-on-year +5.56% -5.26% +5.56%
10th Percentile £331 £320 £336
90th Percentile £625 £623 £578
UK excluding London median daily rate £445 £408 £450
% change year-on-year +9.20% -9.44% +10.77%
Number of hourly rates quoted 1 0 0
UK median hourly rate £26.91 - -
UK excluding London median hourly rate £26.91 - -

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 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 Development
Job Vacancy Trend

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

Job vacancy trend for API Development in the UK

API Development
Contractor Daily Rate Trend

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

Contractor daily rate trend for API Development in the UK

API Development
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing API Development over the 6 months to 17 January 2019.

Contractor daily rate histogram for API Development in the UK

API Development
Contractor Hourly Rate Trend

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

Contractor hourly rate trend for API Development in the UK

API Development
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 Development 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 -4 619 £475 +5.56% 147
UK excluding London +6 330 £445 +9.20% 81
London -8 312 £513 +5.13% 72
South East -8 121 £463 +7.56% 17
North of England +19 75 £450 +14.29% 34
North West +21 46 £450 +20.00% 21
Midlands +20 45 £430 +7.50% 12
South West -4 37 £445 - 7
East Midlands +13 24 £413 -17.50% 6
West Midlands -3 21 £498 +42.14% 6
East of England -31 19 £425 +12.58% 5
North East +11 18 £475 -13.64% 3
Scotland +17 17 £425 +13.33% 6
Wales - 14 £338 -
Yorkshire -33 11 £368 -10.91% 10
Northern Ireland - 1 - -

For the 6 months to 17 January 2019, 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 with a requirement for API Development.

1 361 (54.70%) Agile Software Development
2 249 (37.73%) Java
3 214 (32.42%) JavaScript
4 201 (30.45%) .NET
5 191 (28.94%) REST
6 175 (26.52%) TDD
7 165 (25.00%) C#
8 148 (22.42%) Microsoft Azure
9 145 (21.97%) SQL
10 144 (21.82%) HTML
11 138 (20.91%) Git (software)
12 132 (20.00%) CSS
13 131 (19.85%) Microservices
14 124 (18.79%) AngularJS
15 121 (18.33%) RESTful
16 113 (17.12%) Amazon AWS
16 113 (17.12%) Web Services
17 108 (16.36%) Jenkins
18 107 (16.21%) DevOps
19 105 (15.91%) API Design
20 102 (15.45%) Continuous Integration
21 99 (15.00%) Test Automation
22 98 (14.85%) BDD
23 97 (14.70%) Finance
24 95 (14.39%) Scrum
25 93 (14.09%) SOAP
25 93 (14.09%) Microsoft
26 91 (13.79%) Node.js
27 87 (13.18%) .NET Framework
28 84 (12.73%) SQL Server

API Development
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 32 (4.85%) Confluence
2 31 (4.70%) Apache
3 27 (4.09%) Mule
4 23 (3.48%) Apache Spark
5 21 (3.18%) CMS
5 21 (3.18%) Tomcat
6 16 (2.42%) Elasticsearch
7 15 (2.27%) Sitecore CMS
8 14 (2.12%) IIS
8 14 (2.12%) Mule ESB
9 12 (1.82%) SharePoint
10 11 (1.67%) nginx
11 8 (1.21%) WebSphere
12 7 (1.06%) Documentum
13 6 (0.91%) Liferay
13 6 (0.91%) NServiceBus
14 5 (0.76%) JBoss
14 5 (0.76%) Jetty
14 5 (0.76%) SAS
15 4 (0.61%) Drupal
Applications
1 12 (1.82%) Microsoft Office
2 4 (0.61%) Chatbot
2 4 (0.61%) Photoshop
3 3 (0.45%) Adobe Illustrator
3 3 (0.45%) Microsoft Excel
4 1 (0.15%) Fireworks
4 1 (0.15%) Microsoft PowerPoint
4 1 (0.15%) Microsoft Project
Business Applications
1 20 (3.03%) Dynamics CRM
2 4 (0.61%) Fredhopper
3 3 (0.45%) IBM Operational Decision Manager
3 3 (0.45%) SAP Hybris
4 2 (0.30%) Magento
4 2 (0.30%) Oracle Assets
4 2 (0.30%) Oracle EBS
4 2 (0.30%) Oracle ERP
4 2 (0.30%) Oracle General Ledger
4 2 (0.30%) Oracle Payables
4 2 (0.30%) Oracle Receivables
4 2 (0.30%) Oracle Subledger Accounting
4 2 (0.30%) Payment Gateway
5 1 (0.15%) ION MarketView
5 1 (0.15%) Oracle Financials
5 1 (0.15%) SAP ERP
5 1 (0.15%) SAP Oil and Gas
Cloud Services
1 148 (22.42%) Microsoft Azure
2 113 (17.12%) Amazon AWS
3 41 (6.21%) SaaS
4 35 (5.30%) GitHub
5 34 (5.15%) PaaS
6 29 (4.39%) Serverless
7 26 (3.94%) Apigee
8 22 (3.33%) Dynamics 365
9 18 (2.73%) Google Cloud Platform
10 17 (2.58%) Amazon S3
11 16 (2.42%) IaaS
11 16 (2.42%) Office 365
12 14 (2.12%) Amazon EC2
13 13 (1.97%) AWS Lambda
14 8 (1.21%) Amazon SQS
14 8 (1.21%) npm
15 7 (1.06%) iPaaS
16 6 (0.91%) Amazon Kinesis
16 6 (0.91%) Azure Data Factory
16 6 (0.91%) BrowserStack
Communications & Networking
1 16 (2.42%) SSL
2 14 (2.12%) Kerberos
3 8 (1.21%) HTTP
3 8 (1.21%) Unified Communications
4 6 (0.91%) Reverse Proxy
5 5 (0.76%) DNS
6 4 (0.61%) Internet
7 3 (0.45%) Skype
8 2 (0.30%) BIG-IP
8 2 (0.30%) LAN
8 2 (0.30%) WAN
9 1 (0.15%) DHCP
9 1 (0.15%) Firewall
9 1 (0.15%) HTTPS
9 1 (0.15%) IMAP
9 1 (0.15%) MPLS
9 1 (0.15%) SMS
9 1 (0.15%) SMTP
9 1 (0.15%) VPN
9 1 (0.15%) X.509
Database & Business Intelligence
1 84 (12.73%) SQL Server
2 59 (8.94%) NoSQL
3 49 (7.42%) PostgreSQL
4 44 (6.67%) MongoDB
5 29 (4.39%) MySQL
6 27 (4.09%) Big Data
7 25 (3.79%) SQL Server Integration Services
8 20 (3.03%) Amazon RDS
9 17 (2.58%) Apache Cassandra
10 16 (2.42%) Relational Database
11 15 (2.27%) Redis
12 14 (2.12%) Amazon DynamoDB
13 12 (1.82%) Azure SQL Database
14 11 (1.67%) HBase
15 10 (1.52%) Data Warehouse
16 9 (1.36%) Cosmos DB
16 9 (1.36%) JanusGraph
16 9 (1.36%) SQL Server Reporting Services
17 8 (1.21%) Cloudant
18 7 (1.06%) Neo4j
Development Applications
1 138 (20.91%) Git (software)
2 108 (16.36%) Jenkins
3 75 (11.36%) Maven
4 57 (8.64%) JIRA
5 48 (7.27%) Selenium
6 37 (5.61%) Visual Studio
7 33 (5.00%) Visual Studio Team System
8 32 (4.85%) JUnit
9 29 (4.39%) Team Foundation Server
10 25 (3.79%) TeamCity
11 23 (3.48%) webpack
12 22 (3.33%) Bitbucket
12 22 (3.33%) Cucumber
13 21 (3.18%) gulp
13 21 (3.18%) Jasmine
14 20 (3.03%) Mocha
15 17 (2.58%) WebDriver
16 14 (2.12%) Mockito
16 14 (2.12%) Protractor
17 13 (1.97%) Sonatype Nexus
General
1 97 (14.70%) Finance
2 55 (8.33%) Banking
3 16 (2.42%) Back Office
4 14 (2.12%) Marketing
5 13 (1.97%) Retail
6 11 (1.67%) Financial Institution
7 10 (1.52%) Legal
8 9 (1.36%) Telecoms
9 6 (0.91%) Manufacturing
10 5 (0.76%) Electronics
10 5 (0.76%) Publishing
11 4 (0.61%) Front Office
11 4 (0.61%) Games
11 4 (0.61%) Investment Banking
11 4 (0.61%) Law
11 4 (0.61%) Retail Banking
12 3 (0.45%) Advertising
13 2 (0.30%) General Ledger
14 1 (0.15%) Billing
14 1 (0.15%) Local Government
Job Titles
1 488 (73.94%) Developer
2 106 (16.06%) Java Developer
3 83 (12.58%) .NET Developer
4 76 (11.52%) Senior Developer
5 52 (7.88%) C# Developer
6 47 (7.12%) Architect
7 42 (6.36%) Full Stack Developer
8 33 (5.00%) Azure Developer
9 30 (4.55%) C# .NET Developer
9 30 (4.55%) Front End Developer (Client-Side Developer)
10 28 (4.24%) Node.js Developer
11 23 (3.48%) Senior Java Developer
12 22 (3.33%) Software Developer
12 22 (3.33%) Tester
13 21 (3.18%) Angular Developer
13 21 (3.18%) Technical Architect
14 17 (2.58%) JavaScript Developer
14 17 (2.58%) Senior .NET Developer
15 16 (2.42%) React Developer
16 15 (2.27%) Consultant
Libraries, Frameworks & Software Standards
1 201 (30.45%) .NET
2 191 (28.94%) REST
3 144 (21.82%) HTML
4 132 (20.00%) CSS
5 124 (18.79%) AngularJS
6 121 (18.33%) RESTful
7 113 (17.12%) Web Services
8 93 (14.09%) SOAP
9 91 (13.79%) Node.js
10 87 (13.18%) .NET Framework
11 83 (12.58%) JSON
12 80 (12.12%) ASP.NET Web API
13 78 (11.82%) Spring
14 72 (10.91%) HTML5
15 67 (10.15%) ASP.NET
16 64 (9.70%) React
17 56 (8.48%) XML
18 46 (6.97%) Entity Framework
18 46 (6.97%) WCF
19 38 (5.76%) CSS3
Miscellaneous
1 35 (5.30%) User Experience
2 32 (4.85%) Mobile App
3 31 (4.70%) Analytical Skills
4 27 (4.09%) Greenfield Project
5 20 (3.03%) Fintech
6 16 (2.42%) Data Structures
6 16 (2.42%) Self-Motivation
7 13 (1.97%) Public Cloud
8 11 (1.67%) Algorithms
9 10 (1.52%) Enterprise Software
10 9 (1.36%) Reinsurance
11 7 (1.06%) N-Tier
11 7 (1.06%) PKI
12 6 (0.91%) W3C
13 5 (0.76%) iPad
13 5 (0.76%) iPhone
14 4 (0.61%) DataPower
14 4 (0.61%) Social Media
14 4 (0.61%) SWIFT
15 3 (0.45%) Data Centre
Operating Systems
1 45 (6.82%) Linux
2 18 (2.73%) Apple iOS
3 15 (2.27%) Android
3 15 (2.27%) Windows
4 14 (2.12%) Unix
5 8 (1.21%) Ubuntu
6 5 (0.76%) Mac OS
7 4 (0.61%) Mac OS X
8 1 (0.15%) Windows 10
8 1 (0.15%) Windows Server
Processes & Methodologies
1 361 (54.70%) Agile Software Development
2 175 (26.52%) TDD
3 131 (19.85%) Microservices
4 107 (16.21%) DevOps
5 105 (15.91%) API Design
6 102 (15.45%) Continuous Integration
7 99 (15.00%) Test Automation
8 98 (14.85%) BDD
9 95 (14.39%) Scrum
10 73 (11.06%) MVC
11 50 (7.58%) Web Development
12 46 (6.97%) Continuous Delivery
12 46 (6.97%) E-Commerce
13 45 (6.82%) OO
13 45 (6.82%) SDLC
14 42 (6.36%) Software Engineering
15 41 (6.21%) Open Source
16 38 (5.76%) Front End Development
16 38 (5.76%) SOA
16 38 (5.76%) Unit Testing
Programming Languages
1 249 (37.73%) Java
2 214 (32.42%) JavaScript
3 165 (25.00%) C#
4 145 (21.97%) SQL
5 55 (8.33%) Java 8
5 55 (8.33%) Python
6 34 (5.15%) PHP
7 31 (4.70%) TypeScript
8 21 (3.18%) ES6
9 18 (2.73%) Ruby
10 15 (2.27%) F#
10 15 (2.27%) T-SQL
11 11 (1.67%) Scala
12 6 (0.91%) Shell Script
12 6 (0.91%) XQuery
13 5 (0.76%) Apple Swift
13 5 (0.76%) C++
14 4 (0.61%) C
14 4 (0.61%) Groovy
14 4 (0.61%) Perl
Qualifications
1 49 (7.42%) Security Cleared
2 41 (6.21%) SC Cleared
3 19 (2.88%) Degree
4 4 (0.61%) Computer Science Degree
4 4 (0.61%) DV Cleared
5 3 (0.45%) ITIL Certification
6 2 (0.30%) APMG
6 2 (0.30%) BPSS Clearance
6 2 (0.30%) DBS Check
7 1 (0.15%) Numerate Degree
Quality Assurance & Compliance
1 38 (5.76%) QA
2 10 (1.52%) PSD2
2 10 (1.52%) SEPA
3 4 (0.61%) TARGET2
4 3 (0.45%) GDPR
4 3 (0.45%) WCAG
5 1 (0.15%) Data Quality
5 1 (0.15%) ISO/IEC 27001
System Software
1 75 (11.36%) Docker
2 5 (0.76%) Active Directory
2 5 (0.76%) Virtual Machines
3 4 (0.61%) VMware Infrastructure
4 1 (0.15%) Apache Flume
Systems Management
1 29 (4.39%) Kubernetes
2 26 (3.94%) Ansible
3 25 (3.79%) Puppet
4 17 (2.58%) Single Sign-On
5 15 (2.27%) Opscode Chef
6 10 (1.52%) Grafana
6 10 (1.52%) HP Quality Center
6 10 (1.52%) Terraform
7 5 (0.76%) CA Single Sign-On
8 3 (0.45%) CloudHub
9 2 (0.30%) HAProxy
9 2 (0.30%) Kibana
9 2 (0.30%) logstash
9 2 (0.30%) Prometheus
10 1 (0.15%) Business Desktop Deployment
Vendors
1 93 (14.09%) Microsoft
2 39 (5.91%) MuleSoft
3 29 (4.39%) Oracle
4 27 (4.09%) Google
5 16 (2.42%) Sitecore
6 15 (2.27%) SAP
7 14 (2.12%) WSO2
8 12 (1.82%) IBM
9 10 (1.52%) HP
10 9 (1.36%) hybris
10 9 (1.36%) Northgate
10 9 (1.36%) Oneserve
11 8 (1.21%) Atlassian
12 6 (0.91%) Apple
12 6 (0.91%) CA
13 5 (0.76%) Axway
13 5 (0.76%) TIBCO
14 4 (0.61%) VMware
15 3 (0.45%) Adobe
15 3 (0.45%) Splunk