OpenAPI Contracts in the City of London

OpenAPI Specification
Central London > City of London

The table below provides summary statistics for contract job vacancies advertised in the City of 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 24 June 2025, comparing them to the same period in the previous two years.

6 months to
24 Jun 2025
Same period 2024 Same period 2023
Rank 121 - 172
Rank change year-on-year - - +23
Contract jobs citing OpenAPI 2 0 4
As % of all contract jobs advertised in the City of London 0.12% - 0.12%
As % of the Libraries, Frameworks & Software Standards category 0.44% - 0.43%
Number of daily rates quoted 1 0 2
10th Percentile - - £430
25th Percentile - - £456
Median daily rate (50th Percentile) £425 - £505
Median % change year-on-year - - +1.00%
75th Percentile - - £548
90th Percentile - - £570
Central London median daily rate £425 - £505
% change year-on-year - - +1.00%

All Software Libraries and Frameworks
City of 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 City of London.

Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 451 506 920
As % of all contract IT jobs advertised in the City of London 26.04% 23.59% 26.83%
Number of daily rates quoted 291 350 585
10th Percentile £404 £406 £425
25th Percentile £449 £471 £506
Median daily rate (50th Percentile) £550 £570 £625
Median % change year-on-year -3.51% -8.80% +4.17%
75th Percentile £675 £700 £738
90th Percentile £763 £789 £825
Central London median daily rate £550 £563 £625
% change year-on-year -2.22% -10.00% +4.17%
Number of hourly rates quoted 1 0 1
10th Percentile - - -
25th Percentile £86.25 - -
Median hourly rate £87.50 - £53.00
Median % change year-on-year - - +11.58%
75th Percentile £88.75 - -
90th Percentile - - -
Central London median hourly rate £69.47 - £53.00
% change year-on-year - - +11.58%

OpenAPI
Job Vacancy Trend in the City of London

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

Job vacancy trend for OpenAPI in the City of London

OpenAPI
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing OpenAPI in the City of London.

Daily rate trend for OpenAPI in the City of London

OpenAPI
Co-occurring Skills and Capabilities in the City of 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:

Communications & Networking
1 1 (50.00%) HTTP
Development Applications
1 1 (50.00%) GitLab
1 1 (50.00%) JUnit
1 1 (50.00%) Maven
1 1 (50.00%) Postman
General
1 1 (50.00%) Public Sector
Job Titles
1 1 (50.00%) Developer
1 1 (50.00%) Java Engineer
1 1 (50.00%) Junior
Libraries, Frameworks & Software Standards
1 2 (100.00%) Swagger
2 1 (50.00%) Apache Camel
2 1 (50.00%) OAuth
2 1 (50.00%) OAuth2
2 1 (50.00%) Quarkus
2 1 (50.00%) REST
2 1 (50.00%) Spring
2 1 (50.00%) Spring Boot
2 1 (50.00%) WireMock
Processes & Methodologies
1 2 (100.00%) API Management
2 1 (50.00%) Agile
2 1 (50.00%) API Development
2 1 (50.00%) API Integration
2 1 (50.00%) Code Quality
2 1 (50.00%) Containerisation
2 1 (50.00%) DevOps
2 1 (50.00%) DevSecOps
2 1 (50.00%) High Availability
2 1 (50.00%) Software Engineering
2 1 (50.00%) Test Automation
Programming Languages
1 2 (100.00%) Java
1 2 (100.00%) Python
2 1 (50.00%) Go
2 1 (50.00%) JavaScript
Qualifications
1 1 (50.00%) SC Cleared
1 1 (50.00%) Security Cleared
System Software
1 1 (50.00%) Docker
Systems Management
1 1 (50.00%) Argo
Vendors
1 1 (50.00%) WSO2