Portfolio

Sheshasaibaba Gujjari

Senior Full Stack Software Engineer

Canada (Remote-ready)

Full stack engineer with 7 years of experience. I focus on fixing systems that are slow, broken, or don't scale well. That means things like cutting query times by 60%, dropping bundle sizes from 2MB to 200KB, and building AI pipelines that hit a 92% automated extraction rate. I do this across the full stack, from Angular and React frontends to Java Spring Boot backends and AWS infrastructure.

Sheshasaibaba Gujjari, portrait photo

About

Full stack engineer with 7 years of experience. I focus on fixing systems that are slow, broken, or don't scale well. That means things like cutting query times by 60%, dropping bundle sizes from 2MB to 200KB, and building AI pipelines that hit a 92% automated extraction rate. I do this across the full stack, from Angular and React frontends to Java Spring Boot backends and AWS infrastructure.

  • Systems performance

    When something is slow, I find out why. That might be a bad MongoDB index causing full collection scans, a single-node database setup that needs to become a 3-node Replica Set with automated failover, a bloated JS bundle that never needed to be that large, or a Node process leaking memory under load. I track the root cause down and fix it with numbers to prove it worked.

  • Full-spectrum engineering

    I have worked across the entire stack. WCAG-compliant Angular and React UIs across 2 MEAN/MERN projects serving 30 colleges in the SBCTC portal, a separate Java Spring Boot enterprise backend, real-time Socket.io orchestration for AI agents, and even React Native mobile apps. Whatever the layer is, I pick it up and ship it.

  • AI pipeline architecture

    I built 40+ end-to-end document processing pipelines with custom OCR logic, NLP filtering, and a multi-stage LLM verification loop running locally on AWS. The system hit a 92% automated extraction success rate across 8,000+ college transcript templates.

Experience

Projects

TaxByNav

Zero-cost architecture, Cloud Run + Cloudflare, tuned for a true $0 ops footprint (cost optimization at the core).

Live production SaaS for tax filing and appointments: zero recurring infra spend while staying secure and scalable.

  • FastAPI
  • Next.js 16
  • PostgreSQL
  • Google SSO
  • Cloud Run
Full page

Neural-Vision Outfit Recommender

Ensemble CV + Flask API for cosine NN retrieval with demographic-aware search pruning.

A high-precision image recommendation engine that uses a multi-model ensemble for visual similarity, demographic markers, and occasion context.

  • Python
  • PyTorch
  • Flask
  • OpenCV
  • ONNX
  • InsightFace
  • Scikit-learn
Full page

SGI Handbook RAG Chatbot

Hybrid retrieval with dense + sparse vectors, math-aware grounding, not just API glue.

High-precision QA over the SGI Driver's Handbook, using hybrid retrieval to cut hallucinations and retrieval latency.

  • Python
  • LangChain
  • FAISS
  • Llama-3.1
  • FastAPI
  • RRF
Full page

BlockVeritas

Hybrid on-chain + IPFS, ~95% lower storage cost vs naive all-on-chain metadata.

Community-driven news verification dApp: Proof-of-Reputation voting and Sybil-resistant jury mechanics.

  • Solidity
  • Ethereum
  • IPFS
  • Pinata
Full page

Open to collaboration

Let's connect

Building the future, one line at a time. Whether you're shipping a product, scaling a team, or exploring something ambitious, I'd love to hear from you.