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hari495/README.md

Hari Kolla

CS @ University of Waterloo '28

I build things that help real people. Starting with a laptop was the only option — turns out that's enough.

Portfolio LinkedIn Email

open to: cloud · infra · devops · swe · mlops — summer & fall 2027


What I'm working on

Role Company Focus
☁️ Cloud Engineer Intern Definity Financial AWS cost optimization, FinOps, infrastructure
🤖 Software Engineer, AI Hands AI RAG pipelines, LLM systems, monetization
🛠️ Software Engineer, Infra WATonomous HPC clusters, Kubernetes, CI/CD, observability
✈️ Autonomy Developer WARG 3D localization, drone systems

Impact that matters

- 70%   AWS compute costs at Definity    → 118 idle hours/week eliminated
+ 40%   RAG retrieval accuracy           → 7,000+ items, hybrid pgvector + BM25
- 80%   non-compliant recommendations    → GPT-4o-mini post-retrieval filtering
+ 10x   vector search precision          → FlashRank re-ranking + HNSW indexing
! 25+   daily active users               → Goosedyssey Chrome extension

Projects

Goosedyssey — Chrome extension that transforms UWaterloo's exam schedule into something actually readable. Color-coded midterms, finals, reminders. 25+ students use it daily. Some offered to donate. That's the one I'm most proud of.

Snowspace — Geospatial analysis tool using Google Earth Engine + Sentinel-2 satellite data. Custom KD-tree over 30k+ coordinates → O(log n) lookup, ~28k ops/sec. Top 5 / 200+ teams at BramHacks. Attracted VC interest.

SyncSpace — Collaborative whiteboard for 30+ concurrent users. Y.js CRDTs over WebSockets, conflict-free real-time sync, 40% memory reduction via Ramer-Douglas-Peucker path simplification.

NeuroNotes — Multi-stage RAG pipeline with FlashRank re-ranking and HNSW indexing. 10x retrieval precision, <100ms vector search. Local Llama 3.2 via Ollama.


Stack

Languages Python TypeScript JavaScript Java SQL C++ Bash

Cloud & DevOps AWS GCP Docker Kubernetes GitHub Actions Prometheus Grafana Linux

Frameworks & Data React SvelteKit FastAPI Node.js PostgreSQL Supabase Redis GraphQL

AI & Systems RAG/LLM Pipelines pgvector ChromaDB Y.js CRDTs Distributed Systems Microservices


Stats



Reading ~2hrs/day. Building constantly. Always looking for the harder problem.

Pinned Loading

  1. snowspace snowspace Public

    Python

  2. syncspace syncspace Public

    TypeScript

  3. NeuroNotes NeuroNotes Public

    Python 1

  4. caasion/frametalk caasion/frametalk Public archive

    AI for social good hackathon 2026

    TypeScript