Period
to 20 September 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 20 September 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
20 Sep 2019
Same period 2018 Same period 2017
Rank 525 463 605
Rank change year-on-year -62 +142 +91
Contract jobs citing API Design 310 514 284
As % of all contract IT jobs advertised in the UK 0.35% 0.50% 0.29%
As % of the Processes & Methodologies category 0.40% 0.58% 0.33%
Number of daily rates quoted 210 359 209
UK median daily rate £537 £500 £525
Median daily rate % change year-on-year +7.32% -4.76% +14.13%
10th Percentile £412 £378 £368
90th Percentile £700 £638 £638
UK excluding London median daily rate £500 £475 £525
% change year-on-year +5.26% -9.52% +11.70%
Number of hourly rates quoted 7 1 0
UK median hourly rate £72.50 £45.00 -
Median hourly rate % change year-on-year +61.11% - -
UK excluding London median hourly rate £72.50 £45.00 -
% change year-on-year +61.11% - -

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 76,776 89,381 85,081
As % of all contract IT jobs advertised in the UK 86.54% 86.81% 86.08%
Number of daily rates quoted 50,387 59,004 55,973
UK median daily rate £475 £450 £450
Median daily rate % change year-on-year +5.56% - +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 2,289 2,466 2,107
UK median hourly rate £24.00 £20.50 £24.00
Median hourly rate % change year-on-year +17.07% -14.58% +4.35%
10th Percentile £11.80 £11.17 £11.25
90th Percentile £53.75 £50.00 £50.00
UK excluding London median hourly rate £23.75 £20.00 £23.75
% change year-on-year +18.75% -15.79% +1.06%

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 20 September 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 20 September 2019.

Contractor hourly rate histogram for API Design in the UK

API Design
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 Design within the UK over the 6 months to 20 September 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 -74 294 £540 +8.00% 109
London -83 176 £550 +6.28% 46
UK excluding London +11 130 £500 +5.26% 65
South East +30 58 £533 +17.03% 16
North of England +33 22 £525 +15.07% 18
East of England +23 15 £525 +10.53% 3
Midlands +10 14 £643 +21.32% 8
North West +16 13 £525 +5.00% 14
South West -15 11 £413 -16.46% 18
East Midlands +25 9 - - 4
Yorkshire +29 8 £513 +20.59% 2
Northern Ireland +7 7 £475 -
Scotland +28 5 £488 +14.71% 1
West Midlands +11 5 £643 +8.07% 4
North East +20 1 £505 +27.85% 2

For the 6 months to 20 September 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.

1 169 (54.52%) Agile Software Development
2 126 (40.65%) Microservices
3 105 (33.87%) DevOps
3 105 (33.87%) Java
4 101 (32.58%) TDD
5 92 (29.68%) Azure
6 88 (28.39%) RESTful
6 88 (28.39%) REST
7 81 (26.13%) Git (software)
8 76 (24.52%) AWS
9 70 (22.58%) SQL
10 68 (21.94%) JavaScript
11 66 (21.29%) Finance
11 66 (21.29%) Node.js
11 66 (21.29%) Docker
12 63 (20.32%) Python
13 61 (19.68%) Scrum
13 61 (19.68%) BDD
14 54 (17.42%) Web Services
14 54 (17.42%) Microsoft
15 52 (16.77%) NoSQL
16 50 (16.13%) Jenkins
17 49 (15.81%) Spring
18 48 (15.48%) JSON
18 48 (15.48%) API Development
19 47 (15.16%) SOAP
19 47 (15.16%) Continuous Integration
20 45 (14.52%) Test Automation
20 45 (14.52%) Linux
21 43 (13.87%) C#

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 30 (9.68%) Elasticsearch
2 14 (4.52%) Mule
3 12 (3.87%) Oracle SOA Suite
4 11 (3.55%) Confluence
5 9 (2.90%) JBoss
5 9 (2.90%) OpenStack
6 8 (2.58%) Anypoint
7 7 (2.26%) Apache Spark
7 7 (2.26%) WebSphere
8 6 (1.94%) Apache
9 5 (1.61%) SharePoint
10 4 (1.29%) Drupal
10 4 (1.29%) Jetty
10 4 (1.29%) Tomcat
10 4 (1.29%) WebLogic
11 3 (0.97%) CMS
11 3 (0.97%) nginx
12 2 (0.65%) Apache Solr
12 2 (0.65%) Moodle
12 2 (0.65%) WordPress
Applications
1 2 (0.65%) Microsoft Office
1 2 (0.65%) Photoshop
Business Applications
1 5 (1.61%) BusinessWorks
2 2 (0.65%) Magento
3 1 (0.32%) Loan IQ
3 1 (0.32%) Oracle BPM
3 1 (0.32%) SAP ERP
Cloud Services
1 92 (29.68%) Azure
2 76 (24.52%) AWS
3 29 (9.35%) PaaS
4 26 (8.39%) Serverless
5 21 (6.77%) IaaS
5 21 (6.77%) SaaS
6 19 (6.13%) Power Platform
7 18 (5.81%) GCP
7 18 (5.81%) iPaaS
8 12 (3.87%) Apigee
9 11 (3.55%) Azure Data Factory
10 10 (3.23%) OpenShift
11 9 (2.90%) GitHub
12 7 (2.26%) Amazon Kinesis
12 7 (2.26%) AWS Lambda
12 7 (2.26%) Cloud Computing
13 6 (1.94%) Office 365
14 5 (1.61%) Amazon CloudWatch
14 5 (1.61%) IBM Blueworks
14 5 (1.61%) Yammer
Communications & Networking
1 16 (5.16%) HTTP
2 11 (3.55%) TCP/IP
3 10 (3.23%) SSL
4 6 (1.94%) Ethernet
4 6 (1.94%) MPLS
5 5 (1.61%) VPN
6 4 (1.29%) Reverse Proxy
6 4 (1.29%) WAN
7 3 (0.97%) Internet
7 3 (0.97%) Kerberos
8 1 (0.32%) Firewall
8 1 (0.32%) LAN
8 1 (0.32%) Software-Defined Networking
Database & Business Intelligence
1 52 (16.77%) NoSQL
2 41 (13.23%) PostgreSQL
3 30 (9.68%) Data Lake
4 24 (7.74%) SQL Server Integration Services
5 23 (7.42%) Data Warehouse
5 23 (7.42%) Relational Database
6 19 (6.13%) Power BI
7 18 (5.81%) Cosmos DB
8 17 (5.48%) Data Mart
9 16 (5.16%) MongoDB
10 14 (4.52%) MySQL
10 14 (4.52%) SQL Server
11 13 (4.19%) Big Data
12 9 (2.90%) Oracle Database
13 7 (2.26%) Amazon DynamoDB
13 7 (2.26%) HBase
14 6 (1.94%) Blockchain
15 5 (1.61%) Oracle Database 10g
15 5 (1.61%) RDBMS
16 4 (1.29%) Oracle Database 11g
Development Applications
1 81 (26.13%) Git (software)
2 50 (16.13%) Jenkins
3 22 (7.10%) Maven
4 19 (6.13%) JUnit
5 16 (5.16%) Cucumber
6 15 (4.84%) JIRA
7 13 (4.19%) Subversion
8 10 (3.23%) Eclipse
9 9 (2.90%) Bitbucket
10 8 (2.58%) Gradle
11 7 (2.26%) Mockito
11 7 (2.26%) Visual Studio
11 7 (2.26%) webpack
12 6 (1.94%) Hudson
12 6 (1.94%) Selenium
12 6 (1.94%) Visual Studio Team System
13 5 (1.61%) Atlassian Bamboo
13 5 (1.61%) SoapUI
13 5 (1.61%) Sonatype Nexus
13 5 (1.61%) Team Foundation Server
General
1 66 (21.29%) Finance
2 38 (12.26%) Banking
3 16 (5.16%) Marketing
4 13 (4.19%) Telecoms
5 9 (2.90%) Retail
6 6 (1.94%) Front Office
6 6 (1.94%) Investment Banking
7 5 (1.61%) Public Sector
8 4 (1.29%) Games
8 4 (1.29%) Law
8 4 (1.29%) Manufacturing
9 3 (0.97%) Legal
10 2 (0.65%) Electronics
10 2 (0.65%) Publishing
10 2 (0.65%) Retail Banking
11 1 (0.32%) Back Office
11 1 (0.32%) Corporate Banking
Job Titles
1 173 (55.81%) Developer
2 72 (23.23%) Architect
3 54 (17.42%) Senior Developer
4 53 (17.10%) Java Developer
5 28 (9.03%) C# Developer
6 26 (8.39%) Integration Architect
7 23 (7.42%) .NET Developer
8 22 (7.10%) Python Developer
9 21 (6.77%) Senior Java Developer
10 18 (5.81%) Azure Developer
10 18 (5.81%) Lead Developer
11 16 (5.16%) Scala Developer
12 15 (4.84%) Senior Python Developer
13 13 (4.19%) C# .NET Developer
13 13 (4.19%) Data Architect
13 13 (4.19%) Full Stack Developer
13 13 (4.19%) Lead Architect
13 13 (4.19%) Solutions Architect
14 12 (3.87%) Java Scala Developer
15 11 (3.55%) Analyst
Libraries, Frameworks & Software Standards
1 88 (28.39%) REST
1 88 (28.39%) RESTful
2 66 (21.29%) Node.js
3 54 (17.42%) Web Services
4 49 (15.81%) Spring
5 48 (15.48%) JSON
6 47 (15.16%) SOAP
7 40 (12.90%) HTML
8 34 (10.97%) React
9 33 (10.65%) CSS
10 32 (10.32%) OAuth
11 31 (10.00%) .NET
11 31 (10.00%) XML
12 30 (9.68%) Swagger
13 26 (8.39%) AngularJS
14 25 (8.06%) Spring Boot
15 20 (6.45%) J2EE
15 20 (6.45%) Kafka
16 17 (5.48%) Django
16 17 (5.48%) Middleware
Miscellaneous
1 31 (10.00%) User Experience
2 19 (6.13%) Management Information System
3 18 (5.81%) Cloud Native
4 15 (4.84%) Algorithms
5 14 (4.52%) Greenfield Project
6 12 (3.87%) Mobile App
6 12 (3.87%) Private Cloud
7 8 (2.58%) Analytical Skills
8 7 (2.26%) Data Structures
8 7 (2.26%) Enterprise Software
8 7 (2.26%) Self-Motivation
9 5 (1.61%) Foreign Exchange (FX)
9 5 (1.61%) Public Cloud
10 4 (1.29%) Equities
10 4 (1.29%) Grid Computing
11 3 (0.97%) Blog
11 3 (0.97%) DataPower
12 2 (0.65%) Digital Media
12 2 (0.65%) e-Learning
12 2 (0.65%) Robotics
Operating Systems
1 45 (14.52%) Linux
2 16 (5.16%) Unix
3 13 (4.19%) Windows
4 7 (2.26%) Android
5 6 (1.94%) Red Hat Enterprise Linux
6 3 (0.97%) Apple iOS
6 3 (0.97%) Windows Server
7 1 (0.32%) Mac OS X
Processes & Methodologies
1 169 (54.52%) Agile Software Development
2 126 (40.65%) Microservices
3 105 (33.87%) DevOps
4 101 (32.58%) TDD
5 61 (19.68%) BDD
5 61 (19.68%) Scrum
6 48 (15.48%) API Development
7 47 (15.16%) Continuous Integration
8 45 (14.52%) Test Automation
9 43 (13.87%) Software Engineering
10 34 (10.97%) SOA
11 33 (10.65%) Kanban
12 29 (9.35%) Open Source
13 28 (9.03%) OO
14 26 (8.39%) Continuous Delivery
14 26 (8.39%) Data Modelling
15 25 (8.06%) Computer Science
15 25 (8.06%) Mentoring
16 24 (7.74%) Machine Learning
17 23 (7.42%) Problem-Solving
Programming Languages
1 105 (33.87%) Java
2 70 (22.58%) SQL
3 68 (21.94%) JavaScript
4 63 (20.32%) Python
5 43 (13.87%) C#
6 26 (8.39%) Scala
7 21 (6.77%) Java 8
8 17 (5.48%) Shell Script
9 13 (4.19%) TypeScript
10 12 (3.87%) Ruby
11 11 (3.55%) ES6
11 11 (3.55%) Go
12 9 (2.90%) PL/SQL
13 8 (2.58%) PHP
14 6 (1.94%) Bash Shell
14 6 (1.94%) ES7
14 6 (1.94%) XQuery
15 5 (1.61%) Groovy
15 5 (1.61%) Kotlin
15 5 (1.61%) PowerShell
Qualifications
1 42 (13.55%) SC Cleared
1 42 (13.55%) Security Cleared
2 20 (6.45%) Degree
3 4 (1.29%) Computer Science Degree
4 2 (0.65%) AWS Certification
4 2 (0.65%) CISSP
5 1 (0.32%) DBS Check
5 1 (0.32%) TOGAF Certification
Quality Assurance & Compliance
1 25 (8.06%) Data Quality
2 20 (6.45%) QA
3 4 (1.29%) PSD2
4 3 (0.97%) WCAG
5 2 (0.65%) WAI
6 1 (0.32%) COBIT
6 1 (0.32%) GDPR
6 1 (0.32%) ISO 20022
6 1 (0.32%) NIST
6 1 (0.32%) PCI DSS
6 1 (0.32%) Sarbanes-Oxley
6 1 (0.32%) SEPA
System Software
1 66 (21.29%) Docker
2 9 (2.90%) Virtual Machines
3 7 (2.26%) Active Directory
4 3 (0.97%) Active Directory Lightweight Directory Services
Systems Management
1 23 (7.42%) Kubernetes
2 13 (4.19%) Terraform
3 11 (3.55%) Ansible
4 10 (3.23%) Opscode Chef
4 10 (3.23%) Puppet
5 6 (1.94%) Consul
6 4 (1.29%) logstash
7 3 (0.97%) Control-M
7 3 (0.97%) MIIS
7 3 (0.97%) Single Sign-On
8 2 (0.65%) Docker Swarm
9 1 (0.32%) CloudHub
9 1 (0.32%) Microsoft Intune
9 1 (0.32%) Oracle Identity Manager
9 1 (0.32%) Salt
9 1 (0.32%) SCCM
Vendors
1 54 (17.42%) Microsoft
2 25 (8.06%) Oracle
3 20 (6.45%) MuleSoft
4 17 (5.48%) Databricks
5 14 (4.52%) Google
5 14 (4.52%) IBM
6 13 (4.19%) WSO2
7 8 (2.58%) Salesforce.com
8 7 (2.26%) SAP
8 7 (2.26%) TIBCO
9 5 (1.61%) New Relic
10 4 (1.29%) Altova
10 4 (1.29%) Splunk
11 3 (0.97%) ForgeRock
12 2 (0.65%) CyberArk
12 2 (0.65%) Dell
12 2 (0.65%) Informatica
13 1 (0.32%) Adobe
13 1 (0.32%) Ivanti
13 1 (0.32%) Red Hat