API Design Contracts in the City of London

API Design
Central London > City of London

The table below provides summary statistics for contract job vacancies advertised in the City of London requiring API Design skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited API Design 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 110 122 161
Rank change year-on-year +12 +39 -3
Contract jobs citing API Design 9 5 17
As % of all contract jobs advertised in the City of London 0.51% 0.23% 0.47%
As % of the Processes & Methodologies category 0.55% 0.25% 0.51%
Number of daily rates quoted 5 4 12
10th Percentile £549 £537 £510
25th Percentile £585 £545 £618
Median daily rate (50th Percentile) £600 £625 £700
Median % change year-on-year -4.00% -10.71% +12.00%
75th Percentile £638 £754 £775
90th Percentile £758 £762 £786
Central London median daily rate £600 £625 £700
% change year-on-year -4.00% -10.71% +12.00%
Number of hourly rates quoted 0 0 1
Median hourly rate - - £35.00
Central London median hourly rate - - £35.00

All Process and Methodology Skills
City of London

API Design falls under the Processes and Methodologies category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring process or methodology skills in the City of London.

Contract vacancies with a requirement for process or methodology skills 1,636 1,988 3,346
As % of all contract IT jobs advertised in the City of London 93.17% 90.49% 91.85%
Number of daily rates quoted 1,032 1,406 2,259
10th Percentile £363 £363 £355
25th Percentile £463 £451 £475
Median daily rate (50th Percentile) £575 £565 £600
Median % change year-on-year +1.77% -5.83% +4.35%
75th Percentile £680 £688 £730
90th Percentile £775 £806 £825
Central London median daily rate £565 £550 £600
% change year-on-year +2.73% -8.33% +5.26%
Number of hourly rates quoted 12 11 24
10th Percentile £22.00 £19.92 £15.33
25th Percentile £24.00 £20.22 £18.03
Median hourly rate £29.58 £25.00 £35.00
Median % change year-on-year +18.30% -28.57% -14.63%
75th Percentile £45.00 £40.00 £58.75
90th Percentile £62.25 £41.84 £88.30
Central London median hourly rate £29.07 £27.81 £35.00
% change year-on-year +4.53% -20.54% -14.63%

API Design
Job Vacancy Trend in the City of London

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

Job vacancy trend for API Design in the City of London

API Design
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for API Design in the City of London

API Design
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing API Design in the City of London over the 6 months to 1 May 2025.

Daily rate histogram for API Design in the City of London

API Design
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:

Application Platforms
1 2 (22.22%) Confluence
2 1 (11.11%) Anypoint
2 1 (11.11%) BizTalk Server
Business Applications
1 1 (11.11%) SAP S/4HANA
Cloud Services
1 2 (22.22%) Cloud Computing
2 1 (11.11%) Azure
2 1 (11.11%) Azure API Management
2 1 (11.11%) Azure DevOps
2 1 (11.11%) Azure Event Grid
2 1 (11.11%) Azure Logic Apps
2 1 (11.11%) Azure Monitor
2 1 (11.11%) Azure Service Bus
2 1 (11.11%) Boomi
2 1 (11.11%) Cloud Functions
2 1 (11.11%) Cloud Run
2 1 (11.11%) Entra ID
2 1 (11.11%) GCP
2 1 (11.11%) Power Platform
2 1 (11.11%) Serverless
2 1 (11.11%) Slack
Communications & Networking
1 1 (11.11%) Firewall
1 1 (11.11%) HTTP
1 1 (11.11%) VPN
Database & Business Intelligence
1 2 (22.22%) CockroachDB
1 2 (22.22%) PostgreSQL
1 2 (22.22%) Relational Database
2 1 (11.11%) Apache Cassandra
2 1 (11.11%) BigQuery
2 1 (11.11%) Data Warehouse
2 1 (11.11%) MongoDB
2 1 (11.11%) MySQL
2 1 (11.11%) NoSQL
2 1 (11.11%) SQL Server
2 1 (11.11%) SQL Server Integration Services
Development Applications
1 3 (33.33%) Git
2 1 (11.11%) Bitbucket
2 1 (11.11%) Cucumber
2 1 (11.11%) Jasmine
2 1 (11.11%) Jenkins
2 1 (11.11%) JIRA
2 1 (11.11%) JUnit
2 1 (11.11%) Maven
2 1 (11.11%) MLflow
General
1 3 (33.33%) Finance
2 2 (22.22%) Public Sector
3 1 (11.11%) Analytical Skills
3 1 (11.11%) Banking
3 1 (11.11%) Financial Institution
Job Titles
1 5 (55.56%) Developer
2 3 (33.33%) Python Developer
3 2 (22.22%) Django Developer
3 2 (22.22%) Python/Django Developer
4 1 (11.11%) Artificial Intelligence Engineer
4 1 (11.11%) Azure Engineer
4 1 (11.11%) Full-Stack Developer
4 1 (11.11%) Full-Stack Python Developer
4 1 (11.11%) Full-Stack Web Developer
4 1 (11.11%) Integration Engineer
4 1 (11.11%) Lead
4 1 (11.11%) MuleSoft Developer
4 1 (11.11%) Platform Engineer
4 1 (11.11%) Python Web Developer
4 1 (11.11%) Salesforce Developer
4 1 (11.11%) Senior
4 1 (11.11%) Web Developer
Libraries, Frameworks & Software Standards
1 5 (55.56%) REST
2 4 (44.44%) RESTful
3 3 (33.33%) JSON
4 2 (22.22%) AngularJS
4 2 (22.22%) Django
4 2 (22.22%) React
4 2 (22.22%) SOAP
4 2 (22.22%) XML
5 1 (11.11%) .NET
5 1 (11.11%) EDI
5 1 (11.11%) Middleware
5 1 (11.11%) Node.js
5 1 (11.11%) OAuth
5 1 (11.11%) RAML
5 1 (11.11%) Spring Batch
5 1 (11.11%) Spring Boot
5 1 (11.11%) Spring Security
5 1 (11.11%) Swagger
5 1 (11.11%) WCF
5 1 (11.11%) XSLT
Miscellaneous
1 2 (22.22%) Distributed Systems
1 2 (22.22%) Product Ownership
2 1 (11.11%) Distributed Denial-of-Service
2 1 (11.11%) Public Cloud
Operating Systems
1 1 (11.11%) Linux
1 1 (11.11%) Red Hat Enterprise Linux
Processes & Methodologies
1 5 (55.56%) Agile
2 4 (44.44%) Microservices
2 4 (44.44%) TDD
2 4 (44.44%) Test Automation
3 3 (33.33%) API Development
3 3 (33.33%) CI/CD
3 3 (33.33%) Continuous Integration
3 3 (33.33%) Problem-Solving
3 3 (33.33%) SOLID
4 2 (22.22%) API Management
4 2 (22.22%) Build Automation
4 2 (22.22%) Clean Code
4 2 (22.22%) Data Modelling
4 2 (22.22%) Full-Stack Development
4 2 (22.22%) Pair Programming
5 1 (11.11%) BDD
5 1 (11.11%) DevOps
5 1 (11.11%) Machine Learning
5 1 (11.11%) Open Source
5 1 (11.11%) User Stories
Programming Languages
1 4 (44.44%) Python
1 4 (44.44%) SQL
2 1 (11.11%) Apex Code
2 1 (11.11%) Bash
2 1 (11.11%) Bicep
2 1 (11.11%) C#
2 1 (11.11%) Clojure
2 1 (11.11%) Elixir
2 1 (11.11%) Go
2 1 (11.11%) Haskell
2 1 (11.11%) Java
2 1 (11.11%) JavaScript
2 1 (11.11%) Rust
2 1 (11.11%) Scala
2 1 (11.11%) TypeScript
Qualifications
1 3 (33.33%) SC Cleared
1 3 (33.33%) Security Cleared
2 2 (22.22%) Degree
3 1 (11.11%) Azure Certification
3 1 (11.11%) Computer Science Degree
Quality Assurance & Compliance
1 1 (11.11%) Accessibility
1 1 (11.11%) QA
System Software
1 1 (11.11%) Active Directory
1 1 (11.11%) Docker
Systems Management
1 2 (22.22%) Kubernetes
2 1 (11.11%) CloudHub
2 1 (11.11%) Terraform
Vendors
1 3 (33.33%) Oracle
2 2 (22.22%) MuleSoft
2 2 (22.22%) Salesforce
3 1 (11.11%) Google
3 1 (11.11%) Jitterbit
3 1 (11.11%) Microsoft
3 1 (11.11%) Okta
3 1 (11.11%) SAP