API Development Contracts in the City of London

API Development
Central London > City of London

The table below provides summary statistics for contract job vacancies advertised in the City of London requiring API Development skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited API Development 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 91 116 161
Rank change year-on-year +25 +45 +4
Contract jobs citing API Development 28 11 17
As % of all contract jobs advertised in the City of London 1.59% 0.50% 0.47%
As % of the Processes & Methodologies category 1.71% 0.55% 0.51%
Number of daily rates quoted 18 6 11
10th Percentile £456 £513 £406
25th Percentile - £575 £495
Median daily rate (50th Percentile) £585 £713 £595
Median % change year-on-year -17.89% +19.75% -2.86%
75th Percentile - £769 £673
90th Percentile £611 £775 £775
Central London median daily rate £585 £700 £575
% change year-on-year -16.43% +21.74% -6.12%

All Process and Methodology Skills
City of London

API Development 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 Development
Job Vacancy Trend in the City of London

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

Job vacancy trend for API Development in the City of London

API Development
Contractor Daily Rate Trend in the City of London

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

Daily rate trend for API Development in the City of London

API Development
Daily Rate Histogram in the City of London

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

Daily rate histogram for API Development in the City of London

API Development
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 1 (3.57%) Anypoint
1 1 (3.57%) Confluence
1 1 (3.57%) Microsoft Exchange
Cloud Services
1 19 (67.86%) AWS
2 3 (10.71%) Azure
2 3 (10.71%) GitHub
2 3 (10.71%) GitHub Actions
3 2 (7.14%) Azure DevOps
4 1 (3.57%) Azure AKS
4 1 (3.57%) Azure Cosmos DB
4 1 (3.57%) Azure Logic Apps
4 1 (3.57%) Azure Service Bus
4 1 (3.57%) Cloud Functions
4 1 (3.57%) Cloud Run
4 1 (3.57%) Entra ID
4 1 (3.57%) GCP
4 1 (3.57%) Power Automate
4 1 (3.57%) Power Platform
4 1 (3.57%) PowerApps
4 1 (3.57%) Serverless
Communications & Networking
1 2 (7.14%) HTTP
2 1 (3.57%) DNS
2 1 (3.57%) Firewall
2 1 (3.57%) VPN
Database & Business Intelligence
1 18 (64.29%) PostgreSQL
2 17 (60.71%) NoSQL
3 16 (57.14%) MongoDB
4 3 (10.71%) SQL Server
5 1 (3.57%) BigQuery
5 1 (3.57%) Data Mart
5 1 (3.57%) Data Warehouse
5 1 (3.57%) Power BI
5 1 (3.57%) Relational Database
Development Applications
1 3 (10.71%) Git
2 1 (3.57%) Bitbucket
2 1 (3.57%) Jenkins
2 1 (3.57%) JIRA
2 1 (3.57%) Maven
2 1 (3.57%) Postman
General
1 19 (67.86%) Public Sector
2 4 (14.29%) Social Skills
3 2 (7.14%) Analytical Skills
4 1 (3.57%) Advertising
4 1 (3.57%) Banking
4 1 (3.57%) Corporate Banking
4 1 (3.57%) Finance
4 1 (3.57%) Investment Banking
4 1 (3.57%) Retail
4 1 (3.57%) Retail Banking
Job Titles
1 25 (89.29%) Developer
2 18 (64.29%) Java Developer
3 16 (57.14%) SC Cleared Java Developer
4 4 (14.29%) Senior
5 2 (7.14%) Full-Stack Developer
5 2 (7.14%) Full-Stack Python Developer
5 2 (7.14%) Python Developer
5 2 (7.14%) Senior Developer
5 2 (7.14%) Senior Java Developer
6 1 (3.57%) .NET Developer
6 1 (3.57%) Full-Stack Web Developer
6 1 (3.57%) Lead
6 1 (3.57%) Lead Developer
6 1 (3.57%) MuleSoft Developer
6 1 (3.57%) Python Software Engineer
6 1 (3.57%) Python Web Developer
6 1 (3.57%) Software Developer
6 1 (3.57%) Software Engineer
6 1 (3.57%) SQL Developer
6 1 (3.57%) Web Developer
Libraries, Frameworks & Software Standards
1 18 (64.29%) Kafka
1 18 (64.29%) Spring
1 18 (64.29%) Spring Boot
2 17 (60.71%) React
3 6 (21.43%) RESTful
4 4 (14.29%) JSON
5 3 (10.71%) OAuth
5 3 (10.71%) REST
6 2 (7.14%) FastAPI
6 2 (7.14%) JWT
6 2 (7.14%) OAuth2
6 2 (7.14%) Swagger
6 2 (7.14%) XML
7 1 (3.57%) .NET
7 1 (3.57%) ASP.NET
7 1 (3.57%) HTML
7 1 (3.57%) MUnit
7 1 (3.57%) OpenAPI
7 1 (3.57%) OpenTelemetry
7 1 (3.57%) SOAP
Miscellaneous
1 3 (10.71%) Distributed Systems
2 2 (7.14%) Cloud Native
3 1 (3.57%) Low-Code
Processes & Methodologies
1 24 (85.71%) Agile
2 21 (75.00%) DevOps
3 20 (71.43%) Microservices
4 18 (64.29%) Clean Code
5 17 (60.71%) SOLID
6 6 (21.43%) CI/CD
6 6 (21.43%) Problem-Solving
7 3 (10.71%) API Design
7 3 (10.71%) API Integration
7 3 (10.71%) Full-Stack Development
7 3 (10.71%) Infrastructure as Code
7 3 (10.71%) Software Engineering
7 3 (10.71%) Test Automation
8 2 (7.14%) Code Quality
8 2 (7.14%) Data Modelling
8 2 (7.14%) Event-Driven
8 2 (7.14%) Event-Driven Architecture
8 2 (7.14%) Performance Optimisation
8 2 (7.14%) TDD
8 2 (7.14%) Web Development
Programming Languages
1 21 (75.00%) Java
2 19 (67.86%) JavaScript
2 19 (67.86%) SQL
3 7 (25.00%) Python
4 1 (3.57%) C#
4 1 (3.57%) Go
4 1 (3.57%) Scala
4 1 (3.57%) Shell Script
4 1 (3.57%) TypeScript
Qualifications
1 19 (67.86%) SC Cleared
1 19 (67.86%) Security Cleared
2 16 (57.14%) AWS Certified Developer
3 2 (7.14%) Degree
4 1 (3.57%) Computer Science Degree
Quality Assurance & Compliance
1 1 (3.57%) QA
System Software
1 2 (7.14%) Docker
Systems Management
1 19 (67.86%) Kubernetes
2 4 (14.29%) Terraform
3 1 (3.57%) CloudHub
Vendors
1 2 (7.14%) Oracle
2 1 (3.57%) Google
2 1 (3.57%) MuleSoft
2 1 (3.57%) Murex
2 1 (3.57%) Okta
2 1 (3.57%) Salesforce
2 1 (3.57%) TIBCO