Cloud, cybersecurity, and web engineer based in Colombo, Sri Lanka. I build secure cloud systems, SaaS products, browser tools, and open-source software through HNE Technologies and independent work.
This page acts as a canonical profile for search and professional discovery, tying together my public profiles and selected projects.
Event-driven backends, serverless services, deployment workflows, and practical cloud architecture.
Applied security work across penetration testing, browser privacy tooling, and defensive engineering.
Open-source apps, browser extensions, data tools, and product prototypes built for real workflows.
These are the public repositories I want most associated with my name and technical work.
A lightweight Rust search engine for local apps and websites with typo-tolerant instant search.
Rust • Vector DatabaseA disk-first vector database in Rust with ANN search, metadata filtering, and crash recovery.
Python • ICS SecurityState Transition Integrity Scoring for interpretable ICS anomaly detection and industrial security analysis.
Python • SecurityA penetration testing toolkit for security research and learning.
Web • PrivacyA privacy-focused web browser project exploring a safer and more controlled browsing experience.
AWS • RealtimeAn anonymous low-cost chat app on AWS using API Gateway WebSockets, Lambda, DynamoDB, and S3.
JavaScript • Supply ChainA blockchain-based supply chain authenticity tracker for product verification.
Ethereum • Smart ContractsA secure ERC-20 token with burn and gasless permit support, designed for multisig ownership.
These links are intentionally grouped here so search engines and visitors can connect my public identity across platforms.
Open-source projects, experiments, and product repositories.
ProfileProfessional background, experience, and public profile for A A Hasnat.
CredentialsPublic certifications and technical credentials.
CompanyCompany site and broader business presence connected to my work.