← Back to the catalogueBackend APIs
Classroom . Online . Hybrid
Mode
Course overview
A backend engineering course focused on designing and operating APIs that other teams consume. The course covers API design as a contract: resource modelling, versioning, error semantics, pagination, idempotency and documentation. Operational concerns caching, queues, rate limiting, observability get equal weight.
Learners build and document a production-shaped API with authentication, background jobs and a published OpenAPI specification.
Who it is for
- Backend developers
- Full stack developers formalising API skills
- Integration engineers
- Technical leads defining API standards
Prerequisites
One server-side language, SQL basics and HTTP fundamentals.
How it runs
Learn → Practise → Build → Experience → Demonstrate, ending in a capstone. Delivered by practitioners from the engineering bench, in Madurai, Coimbatore and online.
Final project
Documented Production API
Programme sheet
The printed sheet carries the full module breakdown, labs, project work and certification path. Fees, dates and formats for the next intake are confirmed by the education team on enquiry.
Learning outcomes
01
Design resource models and consistent URL schemes.
02
Implement robust authentication and authorisation.
03
Cache responses and paginate large collections.
04
Document and version an API for external consumers.
05
Choose between REST, GraphQL and event-driven styles.
06
Validate input and return meaningful errors.
07
Offload work to queues and background workers.
Module structure
8 modulesModule 01
HTTP and API Styles
HTTP methods and status codes . Headers . REST constraints . RPC . GraphQL . Event-driven
Modelling resources . URL structure . Filtering and sorting . Pagination . Partial responses . Idempotency keys
Module 03
Validation and Errors
Schema validation . Error envelopes . Problem details . Retry semantics . Time and locale handling
Module 04
Authentication and Authorisation
API keys . OAuth 2.0 flows . JWT . Refresh tokens . Scopes . Multi-tenant access
Lab
OAuth-Protected Endpoints
Module 05
Data and Performance
Query optimisation . N+1 problems . ETags
Module 06
Asynchronous Work
Queues . Workers . Retries and dead letters . Scheduled jobs . Webhooks and signatures
Schema and types . Resolvers . Queries and mutations . N+1 and dataloaders . Auth in GraphQL
Module 08
Operations and Documentation
OpenAPI . SDK generation . Versioning and deprecation . Rate limiting . Logging and tracing . SLOs
Assessment & certification
Module assignments and labs
25%
Final project and review
40%
Learners who complete all modules, submit the final project and clear the review receive a course completion certificate from Kaizen Infinities Private Limited. Project work is documented for the learner's portfolio, and interview preparation is included in the closing sessions.
Career outcomes . Roles this programme prepares for
Backend DeveloperAPI EngineerIntegration EngineerPlatform EngineerSoftware Engineer
