TESHANKALHARA
think. build. evolve.
I engineer ideas into products,
balancing simplicity, performance, and scale.
I care about how systems work,
and how they stand the test of time.
— Teshan Kalhara
here's my recent work.
next case study — in the works.
View showcase ↗TECH STACK
- Next.js
- TypeScript
- Clerk
- Supabase
- Prisma ORM
- PostgreSQL
DESCRIPTION
An online store for a computer retailer — shoppers browse, pay, and track orders; staff manage the whole site (pages, prices, stock) without touching code.
a full-stack computer store, multi-gateway checkout in progress.
View showcase ↗TECH STACK
- Next.js
- TypeScript
- Tailwind CSS
- Radix UI
- Vercel
DESCRIPTION
A marketing site for a vertical-transportation company — one page telling the company's story, plus a projects showcase and a form that reaches sales by email.
we lift your dream — a company profile, built to convert.
View showcase ↗DETECTION ARCHITECTURE
TECH STACK
- Python
- scikit-learn
- OpenCV
- Flask
- React
DETECTION ACCURACY
82.8%
vs 24.4% rule-based
catching pdf text tampering invisible to the eye. 82.8% accuracy.
View case study ↗Here’s what I do.
- 01
Full-Stack Engineering
Designing and building production-ready applications across the frontend, backend, APIs, and data layer.
- Frontend
- Backend
- APIs
- Data
- 02
System Architecture
Structuring maintainable systems with clear boundaries, reliable data flows, and room to scale.
- Boundaries
- Data flow
- Scale
- 03
AI & Machine Learning
Building intelligent solutions with machine learning, NLP, transformer models, and LLM-based applications.
- ML
- NLP
- LLMs
- Transformers
- 04
Performance Engineering
Optimizing applications for speed, efficiency, reliability, and a better user experience.
- Speed
- Profiling
- Caching
- 05
Production Engineering
Shipping dependable software with secure integrations, testing, CI/CD, observability, and deployment practices.
- CI/CD
- Observability
- Security
this is how I think about what I build.
a loop, not a line
you have the vision,
I’ll engineer the experience.
let’s build what’s next.
available globally · remote