02In Development
AI · INFRASTRUCTURE · STREAMING
AI Workspace
Multi-Model LLM Application Platform with a provider-abstraction layer, enabling model switching without downstream code changes.
#next.js#typescript#openrouter#postgresql#prisma#redis
Available for remote · hybrid · on-site
Ranjan Bhattarai / Senior Full-Stack Engineer
I BUILD
SYSTEMS
THAT SURVIVE.
Engineering production systems around distributed architecture, event-driven infrastructure, payments, real-time applications, and AI-powered products.
System / Profile
ranjan.engineer
ONLINE
Core systems
01Node.js
02TypeScript
03PostgreSQL
04Kafka
05Redis
06AWS
Experience
5+
years engineering
Focus
AI
+ distributed systems
STATUSOpen to opportunities
01Engineering focus
I think in systems,
not just features.
01
Distributed Systems
Event-driven services, Kafka pipelines, consumer groups, retry strategies and fault-tolerant workflows.
KafkaNode.jsTypeScriptMicroservices
02
Data & Performance
Production data systems, query optimization, indexing strategies and reliable persistence.
PostgreSQLRedisMongoDBPrisma
03
Real-Time Systems
Low-latency communication systems with persistent state and volatile distributed state.
WebSocketsSocket.ioRedisStreaming
04
Cloud Infrastructure
Production workloads and event-driven processing pipelines running on AWS.
AWSEC2S3LambdaDocker
05
AI Systems
LLM-powered applications with provider abstraction, structured outputs and streaming.
LLM APIsOpenRouterZodAI
06
Observability
Telemetry, distributed tracing and evidence-driven incident investigation.
OpenTelemetryTracingKafkaIncident AI
02Featured system
01 / FeaturedIn development
AI · Observability · Distributed Systems
IncidentLens
An AI-grounded incident correlation and observability platform designed around telemetry, evidence and structured reasoning.
NestJSNext.jsPostgreSQLKafkaOpenTelemetryOpenRouterZod
Architecture
Evidence-first incident pipeline
STREAMING
OpenTelemetry
Trace ingestion
Kafka
Event streaming backbone
Correlation
Telemetry relationships
Processing
Real-time analysis
Evidence Layer
Structured incident context
AI Reasoning
Evidence-first analysis
Incident Report
Automated post-mortem
03Selected work
Things I've built.
Production systems, experiments and infrastructure projects.
03Production
E-COMMERCE · PAYMENTS · REAL-TIME
Skysales
E-commerce platform backend with real-time inventory synchronization via Socket.io and secure webhook-driven Stripe payment and subscription handling.
#node.js#socket.io#postgresql#mongodb#aws#stripe
04Production
CRM · REAL-TIME · BUSINESS SYSTEMS
MBN Torihiki
Electronic Billing, CRM & Business Operations Platform. Owned cross-project implementation of CRM and real-time chat modules as independent Node.js/React services integrated with a core Laravel platform.
05Open Source
MACHINE LEARNING · COMPUTER VISION
Cardamom Leaf Classifier
A computer-vision side project using a PyTorch pipeline to detect cardamom leaf disease from real-world field photos.
#python#pytorch#computer-vision#cnn
04Experience
Production
experience.
Dec 2020 — Feb 2026
Backend Developer
Unibird
Designed production backend systems spanning event-driven architecture, payments, real-time communication and AWS infrastructure.
Node.jsTypeScriptKafkaPostgreSQLRedisAWS
1
Designed modular Node.js/TypeScript backend services and event-driven workflows using Apache Kafka with consumer groups, retry topics and dead-letter queues.
2
Built end-to-end Stripe payment workflows covering PaymentIntents, subscriptions and webhooks, moving synchronous checks toward asynchronous, idempotent processing.
3
Diagnosed PostgreSQL sequential scans with EXPLAIN ANALYZE, introduced targeted indexing and eliminated N+1 query patterns.
4
Built JWT-authenticated real-time chat using Socket.io, PostgreSQL as source of truth and Redis for volatile state.
5
Ran production services on AWS EC2 and built S3 + Lambda event-driven pipelines for CPU-intensive image processing.
05About
Curious about
how I think?
I enjoy working on the difficult layer between an idea and a reliable production system. My work sits around backend architecture, distributed systems, real-time applications, payments, cloud infrastructure and AI.
ranjan@portfolio
Last login: today · Kathmandu
ranjan@portfolio ~ %whoami
Senior Full-Stack Engineer
ranjan@portfolio ~ %system.status
node .............. online
postgres .......... online
kafka ............. online
aws ............... online
ai ................ exploring
Welcome. Type `help` to see available commands.
ranjan@portfolio~ %▋
06 / Contact
LET'S BUILD
SOMETHING
SERIOUS.
Have a system to build, a difficult engineering problem, or an interesting idea? Let's talk.
ranjanbhattarai659@gmail.com