Resume
cleanbrain.developer — Backend Engineer, 9 years of experience.
Backend engineer with around 9 years of experience across Java/Spring and TypeScript/Node.js/NestJS backend systems that connect multiple services and operate under real-world constraints. Focused on system behavior, data flow, failure modes, transaction boundaries, and operational constraints rather than treating any one technology stack as the goal.
Focus areas
- Backend API Design & Development
- Enterprise System Integration & Distributed Data Flows
- Transaction & Data Consistency
- Authentication & Identity Integration
- Batch, Asynchronous & Event-driven Processing
- Performance Bottleneck Analysis & Production Troubleshooting
- AI / LLM API Integration
Tech stack
Backend
- Java
- Spring / Spring Boot
- TypeScript
- Node.js
- NestJS
- REST API design
Data
- PostgreSQL
- JPA
- QueryDSL
- Prisma
- Redis
Integration & Messaging
- Kafka
- Event-driven systems
- OAuth2 / OIDC / SAML
Platform & Operations
- Docker
- Kubernetes
- k3s