Period
to 20 September 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 20 September 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
20 Sep 2018
Same period 2017 Same period 2016
Rank 399 383 618
Rank change year-on-year -16 +235 +70
Contract jobs citing API Development 624 597 312
As % of all contract IT jobs advertised in the UK 0.61% 0.60% 0.29%
As % of the Processes & Methodologies category 0.70% 0.71% 0.34%
Number of daily rates quoted 472 387 227
UK median daily rate £475 £475 £475
10th Percentile £350 £329 £338
90th Percentile £625 £625 £575
UK excluding London median daily rate £425 £440 £450
% change year-on-year -3.41% -2.22% +20.00%
Number of hourly rates quoted 0 1 0
UK median hourly rate - £39.00 -
UK excluding London median hourly rate - £39.00 -

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 88,745 84,585 91,698
As % of all contract IT jobs advertised in the UK 86.20% 85.59% 85.03%
Number of daily rates quoted 58,601 55,681 60,671
UK median daily rate £450 £450 £425
Median daily rate % change year-on-year - +5.88% +6.12%
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% - +6.67%
Number of hourly rates quoted 2,450 2,094 2,377
UK median hourly rate £20.50 £24.00 £23.00
Median hourly rate % change year-on-year -14.58% +4.35% +4.55%
10th Percentile £11.17 £11.25 £11.25
90th Percentile £50.00 £50.00 £47.83
UK excluding London median hourly rate £20.00 £24.00 £23.39
% change year-on-year -16.67% +2.62% +6.31%

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 20 September 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 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 20 September 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 -10 592 £475 - 140
London -3 312 £500 - 76
UK excluding London -18 301 £425 -3.41% 72
South East -45 119 £463 +8.82% 17
North of England -8 51 £475 +30.14% 18
Midlands -13 44 £425 -22.73% 11
East of England +6 38 £405 -10.00% 5
South West -2 25 £425 -5.03% 13
North West -13 24 £500 +37.93% 10
East Midlands +17 22 £425 +2.41% 8
West Midlands -35 22 £425 -22.73% 3
Scotland -11 18 £425 +25.93% 3
North East - 15 £400 - 2
Yorkshire -28 12 £400 +9.59% 6
Wales -15 7 £338 -6.25% 5

For the 6 months to 20 September 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.

1 346 (55.45%) Agile Software Development
2 294 (47.12%) Java
3 222 (35.58%) JavaScript
4 190 (30.45%) TDD
5 177 (28.37%) REST
6 156 (25.00%) .NET
7 155 (24.84%) Jenkins
8 145 (23.24%) C#
9 140 (22.44%) SQL
10 139 (22.28%) HTML
11 137 (21.96%) RESTful
12 128 (20.51%) CSS
13 127 (20.35%) Web Services
14 126 (20.19%) Git (software)
15 124 (19.87%) Scrum
16 123 (19.71%) Microservices
17 120 (19.23%) Microsoft Azure
17 120 (19.23%) Node.js
18 119 (19.07%) Amazon AWS
19 113 (18.11%) BDD
20 112 (17.95%) DevOps
21 99 (15.87%) Docker
22 96 (15.38%) ASP.NET Web API
22 96 (15.38%) JSON
23 95 (15.22%) AngularJS
24 94 (15.06%) SQL Server
25 90 (14.42%) Continuous Integration
26 89 (14.26%) Finance
27 87 (13.94%) Spring
28 86 (13.78%) Maven

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 42 (6.73%) Tomcat
2 29 (4.65%) CMS
3 21 (3.37%) Confluence
3 21 (3.37%) Sitecore CMS
4 20 (3.21%) Mule
5 19 (3.04%) Apache Spark
6 17 (2.72%) Apache
7 16 (2.56%) JBoss
8 13 (2.08%) IIS
9 12 (1.92%) Apache ServiceMix
9 12 (1.92%) nginx
10 11 (1.76%) WebSphere
11 10 (1.60%) Mule ESB
12 9 (1.44%) SAS
13 7 (1.12%) Drupal
13 7 (1.12%) Jetty
14 5 (0.80%) Anypoint
14 5 (0.80%) Jupyter
14 5 (0.80%) Oracle SOA Suite
14 5 (0.80%) WebLogic
Applications
1 10 (1.60%) Fireworks
1 10 (1.60%) Photoshop
2 6 (0.96%) Chatbot
3 5 (0.80%) Microsoft Excel
3 5 (0.80%) Microsoft Office
4 1 (0.16%) MS Visio
Business Applications
1 8 (1.28%) SAP Oil and Gas
2 6 (0.96%) Payment Gateway
3 4 (0.64%) Fredhopper
4 3 (0.48%) Dynamics CRM
5 2 (0.32%) IBM Operational Decision Manager
5 2 (0.32%) Magento
5 2 (0.32%) SAP Hybris
6 1 (0.16%) BusinessWorks
6 1 (0.16%) Distributed Ledger
6 1 (0.16%) ION MarketView
6 1 (0.16%) SunGard Martini
Cloud Services
1 120 (19.23%) Microsoft Azure
2 119 (19.07%) Amazon AWS
3 33 (5.29%) Serverless
4 26 (4.17%) SaaS
5 23 (3.69%) Amazon EC2
5 23 (3.69%) Amazon S3
5 23 (3.69%) GitHub
6 16 (2.56%) PaaS
7 13 (2.08%) Amazon SQS
7 13 (2.08%) Google Cloud Platform
8 10 (1.60%) IaaS
9 9 (1.44%) OpenShift
10 7 (1.12%) AWS Lambda
10 7 (1.12%) iPaaS
11 6 (0.96%) Azure Functions
11 6 (0.96%) Virtual Private Cloud
12 5 (0.80%) Cloud Computing
12 5 (0.80%) Heroku
12 5 (0.80%) npm
13 4 (0.64%) Office 365
Communications & Networking
1 21 (3.37%) SSL
2 20 (3.21%) HTTP
3 19 (3.04%) Kerberos
4 17 (2.72%) Internet
5 5 (0.80%) DNS
5 5 (0.80%) IMAP
5 5 (0.80%) SMS
5 5 (0.80%) SMTP
6 2 (0.32%) FIX Connectivity
6 2 (0.32%) Skype
7 1 (0.16%) Firewall
7 1 (0.16%) HTTPS
7 1 (0.16%) LAN
7 1 (0.16%) Unified Communications
7 1 (0.16%) WAN
Database & Business Intelligence
1 94 (15.06%) SQL Server
2 67 (10.74%) PostgreSQL
3 38 (6.09%) NoSQL
4 37 (5.93%) Relational Database
5 35 (5.61%) MySQL
6 34 (5.45%) MongoDB
7 28 (4.49%) Big Data
8 27 (4.33%) Redis
9 18 (2.88%) Cosmos DB
10 17 (2.72%) HBase
11 16 (2.56%) Apache Cassandra
12 15 (2.40%) SQL Server Integration Services
13 14 (2.24%) Amazon DynamoDB
13 14 (2.24%) Data Warehouse
13 14 (2.24%) Hadoop
14 11 (1.76%) Data Lake
15 10 (1.60%) SQL Server 2008
16 9 (1.44%) Amazon RDS
16 9 (1.44%) Data Mining
17 8 (1.28%) Power BI
Development Applications
1 155 (24.84%) Jenkins
2 126 (20.19%) Git (software)
3 86 (13.78%) Maven
4 56 (8.97%) JIRA
5 54 (8.65%) Selenium
6 48 (7.69%) JUnit
7 38 (6.09%) WebDriver
8 37 (5.93%) Visual Studio
8 37 (5.93%) webpack
9 33 (5.29%) Mocha
10 24 (3.85%) Mockito
10 24 (3.85%) Team Foundation Server
11 23 (3.69%) Bitbucket
12 21 (3.37%) Gradle
13 20 (3.21%) Babel
13 20 (3.21%) Gerrit
13 20 (3.21%) Sinon.JS
13 20 (3.21%) Visual Studio Team System
14 18 (2.88%) Artifactory
14 18 (2.88%) Cucumber
General
1 89 (14.26%) Finance
2 48 (7.69%) Banking
3 15 (2.40%) Marketing
4 13 (2.08%) Retail
5 8 (1.28%) Legal
5 8 (1.28%) Retail Banking
6 6 (0.96%) Law
7 5 (0.80%) Back Office
7 5 (0.80%) Front Office
8 4 (0.64%) Financial Institution
9 3 (0.48%) Automotive
9 3 (0.48%) Games
9 3 (0.48%) Telecoms
10 2 (0.32%) Electronics
10 2 (0.32%) Manufacturing
10 2 (0.32%) Persian Language
11 1 (0.16%) Advertising
11 1 (0.16%) Publishing
11 1 (0.16%) Russian Language
11 1 (0.16%) Spanish Language
Job Titles
1 494 (79.17%) Developer
2 137 (21.96%) Java Developer
3 91 (14.58%) .NET Developer
4 57 (9.13%) Full Stack Developer
5 56 (8.97%) Senior Developer
6 49 (7.85%) C# Developer
7 43 (6.89%) Node.js Developer
8 36 (5.77%) React Developer
9 35 (5.61%) Architect
10 31 (4.97%) C# .NET Developer
11 27 (4.33%) Lead Developer
12 26 (4.17%) Front End Developer (Client-Side Developer)
13 23 (3.69%) Angular Developer
13 23 (3.69%) JavaScript Developer
13 23 (3.69%) Senior Java Developer
14 22 (3.53%) Senior .NET Developer
15 21 (3.37%) Software Developer
16 19 (3.04%) Backend Developer
16 19 (3.04%) Technical Architect
17 17 (2.72%) Azure Developer
Libraries, Frameworks & Software Standards
1 177 (28.37%) REST
2 156 (25.00%) .NET
3 139 (22.28%) HTML
4 137 (21.96%) RESTful
5 128 (20.51%) CSS
6 127 (20.35%) Web Services
7 120 (19.23%) Node.js
8 96 (15.38%) ASP.NET Web API
8 96 (15.38%) JSON
9 95 (15.22%) AngularJS
10 87 (13.94%) Spring
11 84 (13.46%) HTML5
11 84 (13.46%) XML
12 80 (12.82%) .NET Framework
13 72 (11.54%) React
14 62 (9.94%) SOAP
15 60 (9.62%) Spring Boot
16 53 (8.49%) CSS3
17 52 (8.33%) Entity Framework
17 52 (8.33%) OAuth
Miscellaneous
1 35 (5.61%) User Experience
2 31 (4.97%) Analytical Skills
3 29 (4.65%) Mobile App
4 23 (3.69%) Greenfield Project
5 22 (3.53%) Fintech
6 15 (2.40%) Computer Science
7 14 (2.24%) Self-Motivation
8 12 (1.92%) Algorithms
9 10 (1.60%) Enterprise Software
9 10 (1.60%) PKI
10 9 (1.44%) W3C
11 7 (1.12%) N-Tier
12 6 (0.96%) Reinsurance
13 5 (0.80%) Data Structures
13 5 (0.80%) Linux Command Line
14 4 (0.64%) Foreign Exchange (FX)
14 4 (0.64%) iPad
14 4 (0.64%) Mainframe
15 3 (0.48%) DataPower
15 3 (0.48%) Equities
Operating Systems
1 55 (8.81%) Linux
2 30 (4.81%) Unix
3 29 (4.65%) Windows
4 16 (2.56%) Ubuntu
5 15 (2.40%) Android
6 13 (2.08%) Apple iOS
7 5 (0.80%) Red Hat Enterprise Linux
8 3 (0.48%) Windows Server
9 2 (0.32%) Mac OS X
10 1 (0.16%) Embedded Linux
10 1 (0.16%) VMS
10 1 (0.16%) Windows 10
Processes & Methodologies
1 346 (55.45%) Agile Software Development
2 190 (30.45%) TDD
3 124 (19.87%) Scrum
4 123 (19.71%) Microservices
5 113 (18.11%) BDD
6 112 (17.95%) DevOps
7 90 (14.42%) Continuous Integration
8 82 (13.14%) API Design
8 82 (13.14%) Test Automation
9 73 (11.70%) Web Development
10 66 (10.58%) MVC
11 63 (10.10%) SDLC
12 62 (9.94%) Continuous Delivery
13 60 (9.62%) E-Commerce
14 48 (7.69%) Software Engineering
15 47 (7.53%) Unit Testing
16 45 (7.21%) OO
17 44 (7.05%) SOA
18 41 (6.57%) Front End Development
19 35 (5.61%) Open Source
Programming Languages
1 294 (47.12%) Java
2 222 (35.58%) JavaScript
3 145 (23.24%) C#
4 140 (22.44%) SQL
5 67 (10.74%) Java 8
6 62 (9.94%) Python
7 57 (9.13%) ES6
8 55 (8.81%) TypeScript
9 43 (6.89%) PHP
10 18 (2.88%) T-SQL
11 13 (2.08%) Scala
12 12 (1.92%) Ruby
13 11 (1.76%) Shell Script
14 10 (1.60%) C++
15 7 (1.12%) F#
15 7 (1.12%) Go
15 7 (1.12%) PowerShell
16 6 (0.96%) PHP 7
16 6 (0.96%) R
17 5 (0.80%) Bash Shell
Qualifications
1 48 (7.69%) Security Cleared
2 45 (7.21%) SC Cleared
3 21 (3.37%) Degree
4 8 (1.28%) Computer Science Degree
5 5 (0.80%) DV Cleared
6 3 (0.48%) APMG
7 1 (0.16%) MCP
7 1 (0.16%) MCPD
7 1 (0.16%) MCTS
7 1 (0.16%) Microsoft Certification
7 1 (0.16%) Numerate Degree
Quality Assurance & Compliance
1 22 (3.53%) QA
2 11 (1.76%) GDPR
3 2 (0.32%) GCP
3 2 (0.32%) PCI DSS
3 2 (0.32%) PSD2
4 1 (0.16%) Data Quality
System Software
1 99 (15.87%) Docker
2 5 (0.80%) Apache Flume
3 2 (0.32%) Active Directory
4 1 (0.16%) Firmware
4 1 (0.16%) Virtual Machines
4 1 (0.16%) VMware Infrastructure
Systems Management
1 45 (7.21%) Kubernetes
2 26 (4.17%) Puppet
3 24 (3.85%) Ansible
4 20 (3.21%) Single Sign-On
5 17 (2.72%) Grafana
6 13 (2.08%) Opscode Chef
7 11 (1.76%) Terraform
8 9 (1.44%) Kibana
9 8 (1.28%) CA Single Sign-On
10 3 (0.48%) Business Desktop Deployment
11 2 (0.32%) CloudHub
12 1 (0.16%) Docker Swarm
12 1 (0.16%) HAProxy
12 1 (0.16%) PingFederate
12 1 (0.16%) TIBCO Hawk
Vendors
1 82 (13.14%) Microsoft
2 39 (6.25%) Apigee
2 39 (6.25%) MuleSoft
3 29 (4.65%) Google
4 26 (4.17%) Oracle
5 23 (3.69%) IBM
6 21 (3.37%) Sitecore
7 17 (2.72%) Atlassian
7 17 (2.72%) SAP
8 16 (2.56%) WSO2
9 13 (2.08%) TIBCO
10 12 (1.92%) Capita
11 11 (1.76%) Adobe
11 11 (1.76%) CA
12 8 (1.28%) Alteryx
12 8 (1.28%) hybris
13 7 (1.12%) Axway
14 6 (0.96%) Splunk
14 6 (0.96%) Talend
15 5 (0.80%) Tableau