Backend Developer
I design systems that scale.
Building reliable architecture, robust APIs, and infrastructure that doesn't wake you up at 3am.
What I Do
API Design & Development
RESTful APIs with FastAPI built for performance and clarity. Clean contracts, versioned endpoints, proper error handling.
AI & RAG Pipelines
LLM features grounded in your own data — retrieval pipelines, embeddings, and evaluation you can trust in production.
Distributed Systems
Event-driven architectures with Kafka and MQTT, message pipelines, and microservices designed for reliability at scale.
Data Engineering
Batch and real-time pipelines that move data reliably. Ingestion, transformation, and storage designed around how it's used.
Infrastructure & DevOps
Containerized deployments with Docker on AWS (EC2, RDS, S3, Lambda) and CI/CD pipelines that actually work.
Performance & Observability
Profiling, tracing, structured logging, and Grafana dashboards. Know what's slow and why before your users do.
Selected Work
Distributed Task Queue
High-throughput job processing system with priority queues, retries, and dead letter handling.
API Gateway
Rate-limited, authenticated gateway routing traffic to 40+ microservices with circuit breaking.
Event Streaming Platform
Kafka-based event pipeline processing 50k events/sec with schema registry and exactly-once delivery.
Infrastructure as Code
Modular Terraform modules for multi-region AWS deployments with CI/CD pipelines and drift detection.
About Me
I think in systems, not screens.
I'm Kunal, a backend developer focused on building infrastructure that's boring in the best way — reliable, observable, and easy to reason about. I care about clean interfaces between services and systems that hold up under pressure.
I write about architecture decisions, operational patterns, and the occasional hot take on distributed systems.
Read My WriteupsLLM features grounded in private data — retrieval, embeddings, evaluation.
Python · Go · FastAPI · REST APIs
Kafka · MQTT · PostgreSQL · Redis
AWS · Docker · Linux · Grafana
From the Blog
Get in Touch
Need something built
from the ground up?
I'm always interested in hearing about new projects, infrastructure challenges, or opportunities to collaborate on something meaningful.
kunal.khulbe1@gmail.comLooking to hire me for a project? See ways to work together →