API Design Contract Job Trends in the City of London

API Design
Central London > City of London

The table below provides summary statistics and contractor rates for jobs advertised in the City of London requiring API Design skills. It covers contract job vacancies from the 6 months leading up to 26 December 2025, with comparisons to the same periods in the previous two years.

6 months to
26 Dec 2025
Same period 2024 Same period 2023
Rank 113 101 136
Rank change year-on-year -12 +35 +28
Contract jobs citing API Design 13 22 3
As % of all contract jobs in the City of London 0.71% 1.07% 0.12%
As % of the Processes & Methodologies category 0.78% 1.16% 0.13%
Number of daily rates quoted 7 9 3
10th Percentile £442 £533 £460
25th Percentile £566 £550 £531
Median daily rate (50th Percentile) £660 £600 £700
Median % change year-on-year +10.00% -14.29% -
75th Percentile £688 £650 £800
90th Percentile £740 £945 £830
Central London median daily rate £660 £600 £700
% change year-on-year +10.00% -14.29% -

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 1,666 1,894 2,244
As % of all contract IT jobs advertised in the City of London 90.40% 92.17% 89.44%
Number of daily rates quoted 1,170 1,158 1,603
10th Percentile £340 £363 £363
25th Percentile £419 £463 £463
Median daily rate (50th Percentile) £540 £575 £575
Median % change year-on-year -6.09% - -0.92%
75th Percentile £675 £688 £688
90th Percentile £760 £788 £800
Central London median daily rate £550 £575 £575
% change year-on-year -4.35% - -
Number of hourly rates quoted 16 15 10
10th Percentile £20.18 £15.80 £17.00
25th Percentile £24.52 £22.00 £17.48
Median hourly rate £31.00 £42.50 £26.25
Median % change year-on-year -27.06% +61.90% -38.95%
75th Percentile £42.12 £102.25 £44.56
90th Percentile £50.63 £127.30 £74.13
Central London median hourly rate £26.50 £35.00 £27.50
% change year-on-year -24.29% +27.27% -34.13%

API Design
Job Vacancy Trend in the City of London

Historical trend showing the proportion of contract IT job postings citing API Design relative to all contract IT jobs advertised in the City of London.

API Design job vacancy trend in the City of London

API Design
Daily Rate Trend in the City of London

Contractor daily rate distribution trend for jobs in the City of London citing API Design.

Contractor daily rate distribution trend for jobs in the City of London citing API Design

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 26 December 2025.

Daily rate histogram for API Design in the City of London

API Design
Hourly Rate Trend in the City of London

Contractor hourly rate distribution trend for jobs in the City of London citing API Design.

Contractor hourly rate distribution trend for jobs in the City of London citing API Design

API Design
Co-Occurring Skills & Capabilities in the City of London by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Application Platforms
1 1 (7.69%) Apache
1 1 (7.69%) Apache Airflow
Business Applications
1 1 (7.69%) Exchequer
Cloud Services
1 7 (53.85%) AWS
2 6 (46.15%) Azure
3 4 (30.77%) GCP
3 4 (30.77%) Serverless
4 2 (15.38%) Amazon S3
4 2 (15.38%) AWS Lambda
4 2 (15.38%) Azure Functions
4 2 (15.38%) Firebase
4 2 (15.38%) GitHub
4 2 (15.38%) GitHub Actions
5 1 (7.69%) Amazon CloudWatch
5 1 (7.69%) Amazon EC2
5 1 (7.69%) Amazon ECS
5 1 (7.69%) Apigee
5 1 (7.69%) AWS CloudFormation
5 1 (7.69%) Azure Logic Apps
5 1 (7.69%) Azure Monitor
5 1 (7.69%) Entra ID
5 1 (7.69%) Google Gemini
5 1 (7.69%) Vertex AI
Database & Business Intelligence
1 2 (15.38%) Airbyte
2 1 (7.69%) Amazon Aurora
2 1 (7.69%) Amazon RDS
2 1 (7.69%) DynamoDB
2 1 (7.69%) NoSQL
Development Applications
1 2 (15.38%) Git
2 1 (7.69%) Ant
2 1 (7.69%) JIRA
2 1 (7.69%) Snyk
General
1 8 (61.54%) Finance
2 3 (23.08%) Social Skills
3 2 (15.38%) Banking
3 2 (15.38%) Public Sector
Job Titles
1 4 (30.77%) Architect
2 3 (23.08%) Developer
2 3 (23.08%) Technical Architect
3 2 (15.38%) Integration Developer
3 2 (15.38%) Senior
4 1 (7.69%) Analyst
4 1 (7.69%) Artificial Intelligence Architect
4 1 (7.69%) Artificial Intelligence Engineer
4 1 (7.69%) Front-End Engineer (Client-Side Engineer)
4 1 (7.69%) Full-Stack Developer
4 1 (7.69%) Full-Stack Engineer
4 1 (7.69%) Lead
4 1 (7.69%) Mobile Architect
4 1 (7.69%) Payments Architect
4 1 (7.69%) Payments Solutions Architect
4 1 (7.69%) Senior Analyst
4 1 (7.69%) Senior Architect
4 1 (7.69%) Senior Business Analyst
4 1 (7.69%) Senior Technical Business Analyst
4 1 (7.69%) Solutions Architect
Libraries, Frameworks & Software Standards
1 6 (46.15%) OAuth
1 6 (46.15%) OAuth2
2 5 (38.46%) RESTful
3 3 (23.08%) GraphQL
3 3 (23.08%) JWT
3 3 (23.08%) React
3 3 (23.08%) REST
4 2 (15.38%) FastAPI
4 2 (15.38%) JSON
4 2 (15.38%) Kafka
4 2 (15.38%) Node.js
4 2 (15.38%) Redux
4 2 (15.38%) Spring
4 2 (15.38%) Spring Boot
4 2 (15.38%) Zustand
5 1 (7.69%) CSS
5 1 (7.69%) HTML
5 1 (7.69%) HTML5
5 1 (7.69%) XML
5 1 (7.69%) XML Schema
Miscellaneous
1 1 (7.69%) Cloud Native
1 1 (7.69%) Distributed Systems
1 1 (7.69%) Enterprise Software
1 1 (7.69%) Greenfield Project
1 1 (7.69%) Legacy Systems
1 1 (7.69%) Mobile App
1 1 (7.69%) Product Ownership
1 1 (7.69%) Security Posture
1 1 (7.69%) Virtual Team
Operating Systems
1 1 (7.69%) Android
1 1 (7.69%) Apple iOS
Processes & Methodologies
1 8 (61.54%) Agile
2 5 (38.46%) CI/CD
2 5 (38.46%) DevOps
2 5 (38.46%) Microservices
3 4 (30.77%) Containerisation
3 4 (30.77%) Continuous Improvement
3 4 (30.77%) Roadmaps
4 3 (23.08%) AI
4 3 (23.08%) API Integration
4 3 (23.08%) Event-Driven
4 3 (23.08%) Mentoring
4 3 (23.08%) Observability
4 3 (23.08%) Problem-Solving
5 2 (15.38%) Architectural Patterns
5 2 (15.38%) Architecture Roadmap
5 2 (15.38%) Design Patterns
5 2 (15.38%) Digital Transformation Programme
5 2 (15.38%) Full-Stack Development
5 2 (15.38%) Generative AI
5 2 (15.38%) Requirements Workshops
Programming Languages
1 5 (38.46%) Java
1 5 (38.46%) Python
2 4 (30.77%) SQL
3 3 (23.08%) TypeScript
4 2 (15.38%) JavaScript
5 1 (7.69%) Kotlin
5 1 (7.69%) Objective-C
5 1 (7.69%) Ruby
5 1 (7.69%) Swift
Qualifications
1 4 (30.77%) Security Cleared
2 3 (23.08%) SC Cleared
3 2 (15.38%) BPSS Clearance
4 1 (7.69%) IIBA
Quality Assurance & Compliance
1 2 (15.38%) GDPR
2 1 (7.69%) ISO/IEC 27001
System Software
1 3 (23.08%) Docker
Systems Management
1 2 (15.38%) Terraform
2 1 (7.69%) Single Sign-On
Vendors
1 2 (15.38%) Microsoft
2 1 (7.69%) Google
2 1 (7.69%) MuleSoft
2 1 (7.69%) OpenAI