Period
to 18 November 2018

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 18 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 Development
UK
6 months to
18 Nov 2018
Same period 2017 Same period 2016
Rank 389 384 568
Rank change year-on-year -5 +184 +91
Contract jobs citing API Development 634 655 345
As % of all contract IT jobs advertised in the UK 0.62% 0.64% 0.33%
As % of the Processes & Methodologies category 0.72% 0.75% 0.38%
Number of daily rates quoted 483 459 255
UK median daily rate £475 £463 £465
Median daily rate % change year-on-year +2.70% -0.54% +9.41%
10th Percentile £336 £325 £338
90th Percentile £625 £638 £575
UK excluding London median daily rate £425 £425 £450
% change year-on-year - -5.56% +12.50%
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 88,426 87,561 90,028
As % of all contract IT jobs advertised in the UK 86.36% 85.75% 85.19%
Number of daily rates quoted 58,504 58,220 59,418
UK median daily rate £460 £450 £425
Median daily rate % change year-on-year +2.22% +5.88% +3.03%
10th Percentile £300 £278 £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 2,281 2,102 2,485
UK median hourly rate £22.00 £23.14 £22.50
Median hourly rate % change year-on-year -4.93% +2.84% +2.27%
10th Percentile £11.25 £11.25 £11.25
90th Percentile £50.75 £49.50 £48.00
UK excluding London median hourly rate £21.23 £24.00 £22.67
% change year-on-year -11.56% +5.86% +0.77%

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 18 November 2018.

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 18 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 -14 603 £475 +0.26% 175
London -11 311 £500 +2.56% 86
UK excluding London -25 309 £425 - 97
South East -47 121 £438 +2.94% 32
North of England -4 55 £450 +7.46% 21
Midlands -3 46 £425 -22.73% 15
East of England -12 33 £390 -8.24% 9
North West 0 31 £456 +14.00% 13
South West -21 30 £425 -4.49% 12
East Midlands +24 29 £413 -0.60% 8
West Midlands -24 17 £498 -9.55% 7
Yorkshire -13 13 £399 -6.18% 4
Scotland -5 12 £340 -9.33% 8
North East +6 11 £475 -13.64% 4
Wales - 11 £338 -
Northern Ireland - 1 - -

For the 6 months to 18 November 2018, 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.

1 368 (58.04%) Agile Software Development
2 279 (44.01%) Java
3 209 (32.97%) JavaScript
4 196 (30.91%) TDD
5 188 (29.65%) REST
6 183 (28.86%) .NET
7 159 (25.08%) SQL
8 153 (24.13%) C#
9 141 (22.24%) HTML
10 140 (22.08%) Microsoft Azure
11 133 (20.98%) Git (software)
11 133 (20.98%) CSS
12 130 (20.50%) Microservices
13 122 (19.24%) Jenkins
13 122 (19.24%) Scrum
14 120 (18.93%) Web Services
15 119 (18.77%) DevOps
16 109 (17.19%) BDD
17 106 (16.72%) Amazon AWS
18 104 (16.40%) AngularJS
19 100 (15.77%) ASP.NET Web API
19 100 (15.77%) RESTful
20 97 (15.30%) .NET Framework
21 95 (14.98%) JSON
22 94 (14.83%) Continuous Integration
22 94 (14.83%) SQL Server
23 93 (14.67%) Microsoft
24 92 (14.51%) API Design
25 91 (14.35%) Docker
26 88 (13.88%) Test Automation

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 37 (5.84%) Tomcat
2 33 (5.21%) CMS
3 28 (4.42%) Confluence
4 26 (4.10%) Sitecore CMS
5 25 (3.94%) Apache Spark
6 23 (3.63%) IIS
7 20 (3.15%) Apache
7 20 (3.15%) Mule
8 12 (1.89%) Mule ESB
8 12 (1.89%) nginx
9 10 (1.58%) JBoss
10 9 (1.42%) SAS
11 8 (1.26%) Apache ServiceMix
12 7 (1.10%) Elasticsearch
12 7 (1.10%) Jetty
12 7 (1.10%) WebSphere
13 6 (0.95%) Drupal
14 3 (0.47%) Anypoint
14 3 (0.47%) Documentum
14 3 (0.47%) Liferay
Applications
1 13 (2.05%) Microsoft Office
2 11 (1.74%) Photoshop
3 10 (1.58%) Fireworks
4 7 (1.10%) Chatbot
5 6 (0.95%) Microsoft Excel
6 1 (0.16%) Adobe Illustrator
6 1 (0.16%) Microsoft PowerPoint
6 1 (0.16%) Microsoft Project
6 1 (0.16%) MS Visio
Business Applications
1 13 (2.05%) Dynamics CRM
2 5 (0.79%) SAP Oil and Gas
3 4 (0.63%) Fredhopper
4 3 (0.47%) IBM Operational Decision Manager
4 3 (0.47%) Payment Gateway
4 3 (0.47%) SAP Hybris
5 2 (0.32%) Magento
5 2 (0.32%) Oracle Assets
5 2 (0.32%) Oracle ERP
5 2 (0.32%) Oracle General Ledger
5 2 (0.32%) Oracle Payables
5 2 (0.32%) Oracle Receivables
5 2 (0.32%) Oracle Subledger Accounting
6 1 (0.16%) Distributed Ledger
6 1 (0.16%) ION MarketView
6 1 (0.16%) Oracle EBS
6 1 (0.16%) Oracle Financials
Cloud Services
1 140 (22.08%) Microsoft Azure
2 106 (16.72%) Amazon AWS
3 34 (5.36%) GitHub
4 32 (5.05%) SaaS
5 27 (4.26%) Serverless
6 23 (3.63%) Amazon S3
7 22 (3.47%) Amazon EC2
7 22 (3.47%) PaaS
8 21 (3.31%) Apigee
9 14 (2.21%) AWS Lambda
9 14 (2.21%) Google Cloud Platform
10 13 (2.05%) Amazon SQS
11 12 (1.89%) Dynamics 365
12 11 (1.74%) IaaS
13 8 (1.26%) Cloud Computing
13 8 (1.26%) Office 365
14 7 (1.10%) iPaaS
14 7 (1.10%) OpenShift
15 6 (0.95%) Amazon Kinesis
15 6 (0.95%) npm
Communications & Networking
1 20 (3.15%) Kerberos
2 16 (2.52%) Internet
3 15 (2.37%) HTTP
3 15 (2.37%) SSL
4 6 (0.95%) DNS
5 5 (0.79%) IMAP
5 5 (0.79%) SMTP
6 4 (0.63%) Unified Communications
7 2 (0.32%) FIX Connectivity
7 2 (0.32%) LAN
7 2 (0.32%) Skype
7 2 (0.32%) SMS
7 2 (0.32%) WAN
8 1 (0.16%) BIG-IP
8 1 (0.16%) Firewall
8 1 (0.16%) HTTPS
8 1 (0.16%) MPLS
8 1 (0.16%) Network Security
8 1 (0.16%) Reverse Proxy
8 1 (0.16%) VPN
Database & Business Intelligence
1 94 (14.83%) SQL Server
2 69 (10.88%) PostgreSQL
3 51 (8.04%) NoSQL
4 33 (5.21%) Big Data
5 27 (4.26%) MongoDB
5 27 (4.26%) Relational Database
6 24 (3.79%) MySQL
7 21 (3.31%) Redis
8 19 (3.00%) SQL Server Integration Services
9 17 (2.68%) Amazon DynamoDB
9 17 (2.68%) HBase
10 14 (2.21%) Amazon RDS
10 14 (2.21%) Apache Cassandra
11 13 (2.05%) Data Warehouse
12 12 (1.89%) Cosmos DB
13 10 (1.58%) SQL Server 2008
14 9 (1.42%) Azure SQL Database
14 9 (1.42%) Hadoop
14 9 (1.42%) SQL Server Reporting Services
15 8 (1.26%) Cloudant
Development Applications
1 133 (20.98%) Git (software)
2 122 (19.24%) Jenkins
3 81 (12.78%) Maven
4 60 (9.46%) Selenium
5 55 (8.68%) JIRA
6 43 (6.78%) Visual Studio
7 40 (6.31%) WebDriver
8 36 (5.68%) JUnit
9 24 (3.79%) Mocha
9 24 (3.79%) Team Foundation Server
10 23 (3.63%) Bitbucket
10 23 (3.63%) Visual Studio Team System
11 21 (3.31%) webpack
12 18 (2.84%) Artifactory
13 17 (2.68%) Mockito
14 16 (2.52%) TeamCity
15 14 (2.21%) git-flow
15 14 (2.21%) Jasmine
16 13 (2.05%) GitLab
16 13 (2.05%) Protractor
General
1 87 (13.72%) Finance
2 44 (6.94%) Banking
3 17 (2.68%) Marketing
3 17 (2.68%) Retail
4 14 (2.21%) Back Office
5 11 (1.74%) Legal
6 6 (0.95%) Telecoms
7 5 (0.79%) Electronics
7 5 (0.79%) Front Office
7 5 (0.79%) Law
7 5 (0.79%) Manufacturing
8 4 (0.63%) Financial Institution
8 4 (0.63%) Retail Banking
9 2 (0.32%) Advertising
9 2 (0.32%) General Ledger
9 2 (0.32%) Spanish Language
10 1 (0.16%) Automotive
10 1 (0.16%) French Language
10 1 (0.16%) Local Government
10 1 (0.16%) Swedish Language
Job Titles
1 497 (78.39%) Developer
2 130 (20.50%) Java Developer
3 105 (16.56%) .NET Developer
4 73 (11.51%) Senior Developer
5 55 (8.68%) C# Developer
6 52 (8.20%) Full Stack Developer
7 40 (6.31%) Architect
8 38 (5.99%) C# .NET Developer
9 32 (5.05%) Node.js Developer
10 28 (4.42%) Azure Developer
10 28 (4.42%) Software Developer
11 27 (4.26%) Senior .NET Developer
12 26 (4.10%) React Developer
13 24 (3.79%) Angular Developer
13 24 (3.79%) Senior Java Developer
14 23 (3.63%) Front End Developer (Client-Side Developer)
15 21 (3.31%) Technical Architect
16 19 (3.00%) Tester
17 18 (2.84%) Backend Developer
17 18 (2.84%) Lead Developer
Libraries, Frameworks & Software Standards
1 188 (29.65%) REST
2 183 (28.86%) .NET
3 141 (22.24%) HTML
4 133 (20.98%) CSS
5 120 (18.93%) Web Services
6 104 (16.40%) AngularJS
7 100 (15.77%) ASP.NET Web API
7 100 (15.77%) RESTful
8 97 (15.30%) .NET Framework
9 95 (14.98%) JSON
10 88 (13.88%) Node.js
11 82 (12.93%) HTML5
12 75 (11.83%) Spring
13 73 (11.51%) XML
14 65 (10.25%) ASP.NET
14 65 (10.25%) React
14 65 (10.25%) SOAP
15 54 (8.52%) Entity Framework
16 51 (8.04%) Spring Boot
17 45 (7.10%) .NET Core
Miscellaneous
1 39 (6.15%) User Experience
2 32 (5.05%) Mobile App
3 26 (4.10%) Greenfield Project
4 22 (3.47%) Self-Motivation
5 21 (3.31%) Computer Science
6 20 (3.15%) Analytical Skills
6 20 (3.15%) Fintech
7 12 (1.89%) Algorithms
8 10 (1.58%) PKI
9 9 (1.42%) W3C
10 7 (1.10%) Enterprise Software
10 7 (1.10%) N-Tier
11 6 (0.95%) Reinsurance
12 5 (0.79%) Data Structures
12 5 (0.79%) Foreign Exchange (FX)
13 4 (0.63%) Equities
13 4 (0.63%) iPad
13 4 (0.63%) iPhone
13 4 (0.63%) Social Media
13 4 (0.63%) SWIFT
Operating Systems
1 43 (6.78%) Linux
2 28 (4.42%) Windows
3 16 (2.52%) Unix
4 14 (2.21%) Ubuntu
5 11 (1.74%) Android
5 11 (1.74%) Apple iOS
6 3 (0.47%) Mac OS X
6 3 (0.47%) Windows Server
7 1 (0.16%) VMS
7 1 (0.16%) Windows 10
Processes & Methodologies
1 368 (58.04%) Agile Software Development
2 196 (30.91%) TDD
3 130 (20.50%) Microservices
4 122 (19.24%) Scrum
5 119 (18.77%) DevOps
6 109 (17.19%) BDD
7 94 (14.83%) Continuous Integration
8 92 (14.51%) API Design
9 88 (13.88%) Test Automation
10 78 (12.30%) MVC
11 66 (10.41%) Web Development
12 62 (9.78%) E-Commerce
13 52 (8.20%) Continuous Delivery
14 51 (8.04%) Software Engineering
15 46 (7.26%) SDLC
16 42 (6.62%) SOA
17 39 (6.15%) API Testing
17 39 (6.15%) OO
18 37 (5.84%) Open Source
19 35 (5.52%) Unit Testing
Programming Languages
1 279 (44.01%) Java
2 209 (32.97%) JavaScript
3 159 (25.08%) SQL
4 153 (24.13%) C#
5 68 (10.73%) Java 8
6 50 (7.89%) Python
7 37 (5.84%) ES6
8 34 (5.36%) TypeScript
9 31 (4.89%) PHP
10 14 (2.21%) Scala
11 12 (1.89%) Ruby
12 11 (1.74%) F#
12 11 (1.74%) T-SQL
13 9 (1.42%) Shell Script
14 7 (1.10%) Go
15 6 (0.95%) C++
15 6 (0.95%) R
15 6 (0.95%) XQuery
16 5 (0.79%) MATLAB
17 4 (0.63%) PHP 7
Qualifications
1 49 (7.73%) Security Cleared
2 44 (6.94%) SC Cleared
3 25 (3.94%) Degree
4 8 (1.26%) Computer Science Degree
5 5 (0.79%) DV Cleared
6 2 (0.32%) APMG
7 1 (0.16%) Numerate Degree
Quality Assurance & Compliance
1 25 (3.94%) QA
2 10 (1.58%) GDPR
3 7 (1.10%) PSD2
4 4 (0.63%) SEPA
4 4 (0.63%) TARGET2
5 1 (0.16%) Data Quality
5 1 (0.16%) ISO/IEC 27001
5 1 (0.16%) PCI DSS
5 1 (0.16%) WCAG
System Software
1 91 (14.35%) Docker
2 6 (0.95%) Virtual Machines
3 5 (0.79%) Apache Flume
4 4 (0.63%) Active Directory
4 4 (0.63%) VMware Infrastructure
Systems Management
1 48 (7.57%) Kubernetes
2 31 (4.89%) Ansible
3 29 (4.57%) Puppet
4 21 (3.31%) Single Sign-On
5 16 (2.52%) Opscode Chef
6 14 (2.21%) Grafana
7 9 (1.42%) Terraform
8 8 (1.26%) CA Single Sign-On
9 7 (1.10%) Kibana
10 4 (0.63%) HP Quality Center
11 3 (0.47%) CloudHub
12 2 (0.32%) Business Desktop Deployment
13 1 (0.16%) Docker Swarm
13 1 (0.16%) HAProxy
13 1 (0.16%) logstash
13 1 (0.16%) Prometheus
Vendors
1 93 (14.67%) Microsoft
2 42 (6.62%) MuleSoft
3 29 (4.57%) Oracle
4 27 (4.26%) Google
5 26 (4.10%) Sitecore
6 16 (2.52%) SAP
6 16 (2.52%) WSO2
7 13 (2.05%) Atlassian
8 12 (1.89%) IBM
9 11 (1.74%) Adobe
10 9 (1.42%) Northgate
10 9 (1.42%) Oneserve
11 8 (1.26%) Axway
12 7 (1.10%) CA
12 7 (1.10%) hybris
13 6 (0.95%) Tableau
13 6 (0.95%) Talend
14 5 (0.79%) Alteryx
14 5 (0.79%) Informatica
15 4 (0.63%) HP