OpenAPI Contracts in the UK excluding London

OpenAPI Specification
UK > UK excluding London

The table below provides summary statistics for contract job vacancies advertised in the UK excluding London requiring OpenAPI skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited OpenAPI over the 6 months leading up to 1 May 2025, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 297 385 434
Rank change year-on-year +88 +49 +57
Contract jobs citing OpenAPI 39 14 28
As % of all contract jobs advertised in the UK excluding London 0.31% 0.067% 0.12%
As % of the Libraries, Frameworks & Software Standards category 1.64% 0.42% 0.64%
Number of daily rates quoted 25 10 22
10th Percentile £431 £313 -
25th Percentile £463 £417 £575
Median daily rate (50th Percentile) £500 £499 £600
Median % change year-on-year +0.25% -16.88% +9.09%
75th Percentile £575 £613 £675
90th Percentile £730 £626 -
UK median daily rate £530 £490 £600
% change year-on-year +8.27% -18.42% +17.07%

All Software Libraries and Frameworks
UK excluding London

OpenAPI falls under the Software Libraries and Frameworks category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring technical specification, industry standards, software libraries and framework skills in the UK excluding London.

Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 2,378 3,296 4,407
As % of all contract IT jobs advertised in the UK excluding London 18.63% 15.87% 18.31%
Number of daily rates quoted 1,644 2,154 3,299
10th Percentile £350 £324 £357
25th Percentile £406 £406 £425
Median daily rate (50th Percentile) £490 £500 £500
Median % change year-on-year -2.00% - -
75th Percentile £575 £600 £600
90th Percentile £656 £688 £688
UK median daily rate £525 £530 £550
% change year-on-year -0.94% -3.64% -
Number of hourly rates quoted 83 198 91
10th Percentile £30.98 £21.59 £22.50
25th Percentile £56.25 £43.00 £50.00
Median hourly rate £65.00 £47.50 £64.00
Median % change year-on-year +36.84% -25.78% +30.61%
75th Percentile £68.75 £65.00 £74.13
90th Percentile £81.95 £75.00 £78.00
UK median hourly rate £65.00 £46.18 £65.00
% change year-on-year +40.75% -28.95% +32.65%

OpenAPI
Job Vacancy Trend in the UK excluding London

Job postings citing OpenAPI as a proportion of all IT jobs advertised in the UK excluding London.

Job vacancy trend for OpenAPI in the UK excluding London

OpenAPI
Contractor Daily Rate Trend in the UK excluding London

3-month moving average daily rate quoted in jobs citing OpenAPI in the UK excluding London.

Daily rate trend for OpenAPI in the UK excluding London

OpenAPI
Daily Rate Histogram in the UK excluding London

Daily rate distribution for jobs citing OpenAPI in the UK excluding London over the 6 months to 1 May 2025.

Daily rate histogram for OpenAPI in the UK excluding London

OpenAPI
Contract Job Locations in the UK excluding London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing OpenAPI within the UK excluding London region over the 6 months to 1 May 2025. 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
Jobs
North of England +40 22 £530 +63.08% 6
North West +31 15 £530 +63.08% 2
Yorkshire - 6 £765 - 3
South East +46 4 £456 -23.96% 8
Scotland +14 4 £343 -45.20% 2
Northern Ireland - 4 £475 - 1
East of England +31 2 £575 +76.92%
South West - 2 £825 - 3
Wales - 1 - - 1
North East - 1 £475 - 1
OpenAPI
UK

OpenAPI
Co-occurring Skills and Capabilities in the UK excluding London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 8 (20.51%) Confluence
2 7 (17.95%) Anypoint
3 4 (10.26%) Mule
Cloud Services
1 10 (25.64%) AWS
2 9 (23.08%) Azure
3 8 (20.51%) Cloud Computing
3 8 (20.51%) Slack
4 6 (15.38%) GCP
5 4 (10.26%) Apigee
5 4 (10.26%) Serverless
6 3 (7.69%) Azure DevOps
6 3 (7.69%) Azure Functions
6 3 (7.69%) GitHub
7 2 (5.13%) AWS Lambda
7 2 (5.13%) Azure Event Grid
7 2 (5.13%) SaaS
8 1 (2.56%) Amazon S3
8 1 (2.56%) AWS Step Functions
8 1 (2.56%) Azure Pipelines
8 1 (2.56%) CloudFront
8 1 (2.56%) GitHub Actions
8 1 (2.56%) npm
8 1 (2.56%) Yarn
Communications & Networking
1 5 (12.82%) HTTP
2 2 (5.13%) 3GPP
2 2 (5.13%) 4G
2 2 (5.13%) 5G
2 2 (5.13%) Wireless
Database & Business Intelligence
1 21 (53.85%) PostgreSQL
2 12 (30.77%) MongoDB
3 11 (28.21%) Relational Database
4 9 (23.08%) MySQL
5 8 (20.51%) Apache Cassandra
6 2 (5.13%) Elasticsearch
6 2 (5.13%) NoSQL
6 2 (5.13%) SQL Server
7 1 (2.56%) Adabas
7 1 (2.56%) Amazon Aurora
Development Applications
1 18 (46.15%) JUnit
2 14 (35.90%) Jenkins
3 13 (33.33%) Git
4 12 (30.77%) JIRA
5 10 (25.64%) Gradle
5 10 (25.64%) Liquibase
5 10 (25.64%) Mockito
6 9 (23.08%) Cucumber
7 8 (20.51%) Jasmine
8 7 (17.95%) GitLab
9 2 (5.13%) CircleCI
9 2 (5.13%) Postman
10 1 (2.56%) Ant
10 1 (2.56%) Bitbucket
10 1 (2.56%) webpack
General
1 20 (51.28%) Public Sector
2 16 (41.03%) Finance
3 14 (35.90%) Telecoms
4 11 (28.21%) Electronics
4 11 (28.21%) Manufacturing
4 11 (28.21%) Marketing
5 3 (7.69%) Banking
5 3 (7.69%) Social Skills
6 2 (5.13%) Analytical Skills
7 1 (2.56%) Inclusion and Diversity
7 1 (2.56%) Retail
Job Titles
1 26 (66.67%) Developer
2 13 (33.33%) Senior
3 12 (30.77%) Java Developer
4 10 (25.64%) Senior Developer
5 7 (17.95%) Senior Java Developer
5 7 (17.95%) Software Engineer
6 6 (15.38%) Java Engineer
6 6 (15.38%) Java Software Engineer
6 6 (15.38%) MuleSoft Developer
6 6 (15.38%) React Developer
7 5 (12.82%) SC Cleared Java Developer
7 5 (12.82%) SC Cleared Software Engineer
8 4 (10.26%) Lead
9 3 (7.69%) Lead Developer
10 2 (5.13%) Consultant
10 2 (5.13%) Designer
10 2 (5.13%) Software Developer
10 2 (5.13%) Solutions Designer
11 1 (2.56%) Lead .NET Developer
11 1 (2.56%) Senior Java Engineer
Libraries, Frameworks & Software Standards
1 38 (97.44%) Swagger
2 21 (53.85%) Spring
3 20 (51.28%) RESTful
3 20 (51.28%) Spring Boot
4 13 (33.33%) Kafka
5 11 (28.21%) React
6 9 (23.08%) Spring Security
7 7 (17.95%) RAML
7 7 (17.95%) Spring Batch
8 5 (12.82%) JSON
9 4 (10.26%) OAuth
9 4 (10.26%) REST
9 4 (10.26%) SOAP
9 4 (10.26%) XML
10 3 (7.69%) RabbitMQ
11 2 (5.13%) .NET
11 2 (5.13%) .NET Framework
11 2 (5.13%) AngularJS
11 2 (5.13%) Node.js
11 2 (5.13%) Web Services
Miscellaneous
1 8 (20.51%) Distributed Denial-of-Service
2 3 (7.69%) Enterprise Software
3 2 (5.13%) Cloud Native
4 1 (2.56%) Data Protection Act
4 1 (2.56%) Legacy Applications
4 1 (2.56%) Legacy Systems
4 1 (2.56%) Product Ownership
4 1 (2.56%) Public Cloud
Operating Systems
1 11 (28.21%) Linux
2 8 (20.51%) Red Hat Enterprise Linux
Processes & Methodologies
1 30 (76.92%) Microservices
2 26 (66.67%) CI/CD
2 26 (66.67%) Containerisation
3 18 (46.15%) DevOps
3 18 (46.15%) Software Engineering
3 18 (46.15%) TDD
4 15 (38.46%) Agile
4 15 (38.46%) Continuous Integration
5 14 (35.90%) API Development
6 11 (28.21%) Business Intelligence
6 11 (28.21%) Digital Marketing
6 11 (28.21%) Migration
6 11 (28.21%) Programme Management
6 11 (28.21%) Test Automation
7 10 (25.64%) API Design
8 8 (20.51%) Continuous Delivery
8 8 (20.51%) Event-Driven
8 8 (20.51%) Event-Driven Architecture
8 8 (20.51%) Kernel Tuning
8 8 (20.51%) OWASP
Programming Languages
1 24 (61.54%) Java
2 20 (51.28%) SQL
3 14 (35.90%) TypeScript
4 8 (20.51%) Bash
5 5 (12.82%) C#
6 4 (10.26%) DataWeave
7 3 (7.69%) JavaScript
8 2 (5.13%) C++
8 2 (5.13%) Go
8 2 (5.13%) Python
9 1 (2.56%) Natural
9 1 (2.56%) Ruby
Qualifications
1 22 (56.41%) SC Cleared
1 22 (56.41%) Security Cleared
2 3 (7.69%) Degree
3 2 (5.13%) Computer Science Degree
4 1 (2.56%) OCP
4 1 (2.56%) Oracle Certification
System Software
1 27 (69.23%) Docker
Systems Management
1 16 (41.03%) Kubernetes
2 2 (5.13%) Terraform
Vendors
1 11 (28.21%) SAP
2 7 (17.95%) MuleSoft
3 2 (5.13%) Google
3 2 (5.13%) Salesforce
4 1 (2.56%) Atlassian
4 1 (2.56%) ServiceNow