Period
to 19 October 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 19 October 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
19 Oct 2019
Same period 2018 Same period 2017
Rank 401 414 399
Rank change year-on-year +13 -15 +192
Contract jobs citing API Development 489 604 618
As % of all contract IT jobs advertised in the UK 0.58% 0.59% 0.62%
As % of the Processes & Methodologies category 0.67% 0.67% 0.72%
Number of daily rates quoted 354 454 425
UK median daily rate £450 £475 £473
Median daily rate % change year-on-year -5.26% +0.53% -0.53%
10th Percentile £350 £336 £325
90th Percentile £625 £625 £638
UK excluding London median daily rate £425 £425 £425
Number of hourly rates quoted 0 0 0
UK median hourly rate - - -
UK excluding London median hourly rate - - -

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 72,964 89,500 85,753
As % of all contract IT jobs advertised in the UK 86.40% 86.81% 86.24%
Number of daily rates quoted 47,909 59,033 56,803
UK median daily rate £475 £451 £450
Median daily rate % change year-on-year +5.32% +0.22% +5.88%
10th Percentile £300 £300 £278
90th Percentile £650 £638 £625
UK excluding London median daily rate £438 £425 £400
% change year-on-year +2.94% +6.25% -
Number of hourly rates quoted 2,258 2,425 2,063
UK median hourly rate £24.00 £21.00 £24.66
Median hourly rate % change year-on-year +14.31% -14.86% +9.60%
10th Percentile £11.85 £11.17 £11.25
90th Percentile £53.23 £50.00 £50.00
UK excluding London median hourly rate £22.97 £20.00 £25.00
% change year-on-year +14.83% -20.00% +8.70%

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 19 October 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 15 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 19 October 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 +7 473 £463 -2.63% 169
London +53 286 £525 +5.00% 72
UK excluding London -30 194 £425 - 108
South East -7 75 £450 +5.88% 33
North of England +48 55 £425 -5.56% 27
Yorkshire +42 28 £425 -2.86% 13
North West +15 26 £428 -7.47% 12
Midlands +29 24 £400 -5.88% 14
West Midlands +33 15 £450 -5.01% 7
East of England +2 15 £475 +21.79% 11
South West -25 15 £413 -2.94% 13
East Midlands +12 9 £400 -4.48% 7
Scotland +29 7 £425 +7.94% 5
Wales +17 3 £325 -3.70% 4
North East +3 1 £400 -8.57% 2

For the 6 months to 19 October 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.

1 223 (45.60%) Agile Software Development
2 152 (31.08%) Java
2 152 (31.08%) JavaScript
2 152 (31.08%) Microservices
3 121 (24.74%) .NET
4 117 (23.93%) C#
5 116 (23.72%) TDD
6 111 (22.70%) RESTful
7 109 (22.29%) REST
8 108 (22.09%) Python
9 106 (21.68%) DevOps
10 104 (21.27%) AWS
11 101 (20.65%) Finance
12 90 (18.40%) Git (software)
13 88 (18.00%) SQL
13 88 (18.00%) Web Services
14 75 (15.34%) Azure
14 75 (15.34%) Node.js
15 74 (15.13%) AngularJS
15 74 (15.13%) Test Automation
16 70 (14.31%) HTML
17 67 (13.70%) CSS
18 64 (13.09%) API Design
19 57 (11.66%) React
20 56 (11.45%) JSON
21 53 (10.84%) XML
22 52 (10.63%) Software Engineering
23 50 (10.22%) SOAP
23 50 (10.22%) NoSQL
24 49 (10.02%) BDD

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 24 (4.91%) Elasticsearch
2 18 (3.68%) Confluence
3 12 (2.45%) Cloud Foundry
4 11 (2.25%) Mule
5 9 (1.84%) IIS
6 7 (1.43%) Anypoint
6 7 (1.43%) NServiceBus
7 6 (1.23%) CMS
7 6 (1.23%) Mule ESB
8 5 (1.02%) Apache Spark
9 4 (0.82%) Hyperledger
10 3 (0.61%) Apache ServiceMix
10 3 (0.61%) Ethereum
10 3 (0.61%) JBoss
10 3 (0.61%) Oracle Workflow
10 3 (0.61%) WordPress
11 2 (0.41%) Drupal
11 2 (0.41%) Jetty
11 2 (0.41%) Moodle
11 2 (0.41%) Tomcat
Applications
1 3 (0.61%) Microsoft Excel
1 3 (0.61%) Microsoft Office
2 1 (0.20%) Microsoft Project
Business Applications
1 7 (1.43%) Distributed Ledger
1 7 (1.43%) R3 Corda
2 2 (0.41%) Dynamics CRM
3 1 (0.20%) Payment Gateway
3 1 (0.20%) SunGard Martini
Cloud Services
1 104 (21.27%) AWS
2 75 (15.34%) Azure
3 36 (7.36%) Serverless
4 22 (4.50%) AWS Lambda
4 22 (4.50%) GCP
4 22 (4.50%) GitHub
5 20 (4.09%) PaaS
6 11 (2.25%) Boomi
7 10 (2.04%) Apigee
7 10 (2.04%) Cloud Computing
7 10 (2.04%) npm
8 9 (1.84%) AWS CloudFormation
8 9 (1.84%) OpenShift
9 7 (1.43%) Azure Functions
10 6 (1.23%) Amazon S3
11 5 (1.02%) BrowserStack
11 5 (1.02%) CloudFront
11 5 (1.02%) IaaS
11 5 (1.02%) Lucidchart
11 5 (1.02%) Power Platform
Communications & Networking
1 20 (4.09%) HTTP
2 6 (1.23%) FTP
3 4 (0.82%) Ethernet
4 3 (0.61%) Firewall
4 3 (0.61%) MPLS
4 3 (0.61%) TCP/IP
4 3 (0.61%) VPN
5 2 (0.41%) Cisco ASA
5 2 (0.41%) Network Security
6 1 (0.20%) 3GPP
6 1 (0.20%) 4G
6 1 (0.20%) BIG-IP
6 1 (0.20%) DNS
6 1 (0.20%) Internet
6 1 (0.20%) Intrusion Detection
6 1 (0.20%) LTE
6 1 (0.20%) Radio Access Network
6 1 (0.20%) Reverse Proxy
6 1 (0.20%) WAN
6 1 (0.20%) Wireless
Database & Business Intelligence
1 50 (10.22%) NoSQL
2 48 (9.82%) PostgreSQL
3 47 (9.61%) SQL Server
4 23 (4.70%) MySQL
5 19 (3.89%) Relational Database
6 14 (2.86%) Amazon DynamoDB
6 14 (2.86%) MongoDB
7 13 (2.66%) Blockchain
8 11 (2.25%) SQL Server Integration Services
9 10 (2.04%) Data Warehouse
10 9 (1.84%) Redis
11 7 (1.43%) Big Data
12 6 (1.23%) Oracle Database
13 5 (1.02%) Cosmos DB
13 5 (1.02%) Hadoop
13 5 (1.02%) Power BI
13 5 (1.02%) RDBMS
14 4 (0.82%) SQL Server Analysis Services
14 4 (0.82%) SQL Server Reporting Services
15 3 (0.61%) Apache Cassandra
Development Applications
1 90 (18.40%) Git (software)
2 36 (7.36%) Jenkins
3 30 (6.13%) JIRA
4 22 (4.50%) Visual Studio
5 21 (4.29%) RStudio
6 19 (3.89%) Maven
7 16 (3.27%) Bitbucket
8 14 (2.86%) Visual Studio Team System
9 12 (2.45%) GitLab
9 12 (2.45%) JUnit
10 11 (2.25%) Selenium
10 11 (2.25%) TeamCity
11 9 (1.84%) Cucumber
12 8 (1.64%) Jasmine
12 8 (1.64%) Sonatype Nexus
13 7 (1.43%) gulp
13 7 (1.43%) Mocha
13 7 (1.43%) MSTest
13 7 (1.43%) Protractor
13 7 (1.43%) webpack
General
1 101 (20.65%) Finance
2 32 (6.54%) Banking
3 23 (4.70%) Front Office
4 22 (4.50%) Marketing
5 19 (3.89%) Retail
6 13 (2.66%) Law
7 12 (2.45%) Public Sector
8 10 (2.04%) Publishing
9 9 (1.84%) Financial Institution
9 9 (1.84%) Telecoms
10 5 (1.02%) Manufacturing
11 3 (0.61%) Advertising
11 3 (0.61%) Electronics
11 3 (0.61%) Legal
11 3 (0.61%) Local Government
12 2 (0.41%) Back Office
12 2 (0.41%) Billing
12 2 (0.41%) Games
13 1 (0.20%) Investment Banking
13 1 (0.20%) Pharmaceutical
Job Titles
1 374 (76.48%) Developer
2 77 (15.75%) Senior Developer
3 76 (15.54%) Java Developer
4 57 (11.66%) .NET Developer
5 47 (9.61%) C# Developer
6 35 (7.16%) Senior Java Developer
7 32 (6.54%) Architect
8 30 (6.13%) C# .NET Developer
8 30 (6.13%) Full Stack Developer
8 30 (6.13%) Python Developer
9 26 (5.32%) Front End Developer (Client-Side Developer)
10 24 (4.91%) Lead Developer
11 21 (4.29%) AWS Developer
11 21 (4.29%) Azure Developer
12 15 (3.07%) Integration Developer
12 15 (3.07%) JavaScript Developer
12 15 (3.07%) Senior Python Developer
13 14 (2.86%) Front Office Developer
13 14 (2.86%) Software Engineer
14 13 (2.66%) Scala Developer
Libraries, Frameworks & Software Standards
1 121 (24.74%) .NET
2 111 (22.70%) RESTful
3 109 (22.29%) REST
4 88 (18.00%) Web Services
5 75 (15.34%) Node.js
6 74 (15.13%) AngularJS
7 70 (14.31%) HTML
8 67 (13.70%) CSS
9 57 (11.66%) React
10 56 (11.45%) JSON
11 53 (10.84%) XML
12 50 (10.22%) SOAP
13 48 (9.82%) Spring
13 48 (9.82%) Swagger
14 34 (6.95%) .NET Core
15 32 (6.54%) OAuth
16 30 (6.13%) ASP.NET
16 30 (6.13%) Spring Boot
17 29 (5.93%) J2EE
18 27 (5.52%) .NET Framework
Miscellaneous
1 37 (7.57%) User Experience
2 22 (4.50%) Derivative
2 22 (4.50%) Equities
2 22 (4.50%) Foreign Exchange (FX)
3 21 (4.29%) Fixed Income
4 20 (4.09%) Analytical Skills
5 19 (3.89%) Algorithms
6 14 (2.86%) Greenfield Project
7 12 (2.45%) Mobile App
8 11 (2.25%) Self-Motivation
9 9 (1.84%) Embedded Systems
9 9 (1.84%) EPoS
10 8 (1.64%) Blog
10 8 (1.64%) Virtual Team
11 7 (1.43%) Data Structures
12 6 (1.23%) Public Cloud
13 5 (1.02%) Cloud Native
13 5 (1.02%) Cyberattack
13 5 (1.02%) Enterprise Software
14 4 (0.82%) Client/Server
Operating Systems
1 37 (7.57%) Linux
2 8 (1.64%) Apple iOS
2 8 (1.64%) Windows
3 7 (1.43%) Android
4 3 (0.61%) Mac OS X
4 3 (0.61%) Unix
5 2 (0.41%) Red Hat Enterprise Linux
6 1 (0.20%) Ubuntu
Processes & Methodologies
1 223 (45.60%) Agile Software Development
2 152 (31.08%) Microservices
3 116 (23.72%) TDD
4 106 (21.68%) DevOps
5 74 (15.13%) Test Automation
6 64 (13.09%) API Design
7 52 (10.63%) Software Engineering
8 49 (10.02%) BDD
8 49 (10.02%) Continuous Integration
9 48 (9.82%) Scrum
10 47 (9.61%) Front End Development
11 44 (9.00%) OO
11 44 (9.00%) Unit Testing
12 42 (8.59%) MVC
13 34 (6.95%) Open Source
14 33 (6.75%) Continuous Delivery
15 32 (6.54%) Web Development
16 30 (6.13%) Analytics
16 30 (6.13%) E-Commerce
16 30 (6.13%) SOA
Programming Languages
1 152 (31.08%) Java
1 152 (31.08%) JavaScript
2 117 (23.93%) C#
3 108 (22.09%) Python
4 88 (18.00%) SQL
5 35 (7.16%) Java 8
6 27 (5.52%) R
7 24 (4.91%) PHP
8 22 (4.50%) Ruby
8 22 (4.50%) Scala
9 16 (3.27%) ES6
10 10 (2.04%) C++
10 10 (2.04%) TypeScript
11 9 (1.84%) PowerShell
11 9 (1.84%) Shell Script
12 8 (1.64%) Kotlin
12 8 (1.64%) T-SQL
13 7 (1.43%) VB.NET
14 6 (1.23%) ActionScript
14 6 (1.23%) PL/SQL
Qualifications
1 30 (6.13%) Security Cleared
2 24 (4.91%) SC Cleared
3 16 (3.27%) Degree
4 6 (1.23%) Computer Science Degree
5 5 (1.02%) BPSS Clearance
6 3 (0.61%) DBS Check
7 2 (0.41%) CISSP
8 1 (0.20%) DV Cleared
Quality Assurance & Compliance
1 7 (1.43%) QA
2 5 (1.02%) PSD2
3 3 (0.61%) NIST
4 2 (0.41%) HL7
4 2 (0.41%) ISO/IEC 27001
4 2 (0.41%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
4 2 (0.41%) WCAG
5 1 (0.20%) Data Quality
5 1 (0.20%) SLA
System Software
1 44 (9.00%) Docker
2 5 (1.02%) VMware Infrastructure
3 2 (0.41%) Active Directory
Systems Management
1 24 (4.91%) Ansible
2 19 (3.89%) Kubernetes
3 10 (2.04%) Puppet
4 9 (1.84%) Terraform
5 5 (1.02%) Single Sign-On
6 3 (0.61%) Opscode Chef
6 3 (0.61%) Prometheus
7 2 (0.41%) CloudHub
7 2 (0.41%) Docker Swarm
7 2 (0.41%) FortiGate
8 1 (0.20%) Graphite
8 1 (0.20%) HAProxy
8 1 (0.20%) Kibana
8 1 (0.20%) logstash
8 1 (0.20%) Nagios
Vendors
1 48 (9.82%) Microsoft
2 34 (6.95%) MuleSoft
3 25 (5.11%) Google
4 19 (3.89%) Salesforce.com
5 17 (3.48%) Oracle
6 12 (2.45%) Axway
7 11 (2.25%) Dell
8 10 (2.04%) SAP
8 10 (2.04%) webMethods
9 9 (1.84%) WSO2
10 5 (1.02%) Atlassian
10 5 (1.02%) VMware
11 4 (0.82%) Adobe
11 4 (0.82%) Apple
11 4 (0.82%) IBM
11 4 (0.82%) Red Hat
11 4 (0.82%) Splunk
11 4 (0.82%) TIBCO
11 4 (0.82%) WorldPay
12 3 (0.61%) Informatica