// hello world
I build systems that scale.
I'm Fenn Ignatius Saji — a senior software engineer focused on Rust, blockchain infrastructure, and distributed systems.
Lead Blockchain Developer @ McKinley Rice · India · 8 years shipping
Selected work
Production-ready Substrate blockchain with a custom instant-confirmation consensus. Event-driven block production, fee-free transactions, and multi-layer spam protection.
Quantum-safe blockchain where decentralised identity is the core primitive, plus the Rust backend services around it. Custom Rust framework, post-quantum signatures from genesis, instant finality.
AI-powered Bible study guide generator. Multi-language support, anonymous and OAuth access, cross-platform on iOS, Android, and Web — with a Rust service auto-generating the companion blog.
More projects
- Zyrua
Privacy-first KYC platform using zero-knowledge proofs. Verify identity attributes without revealing personal data. GDPR-compliant, ongoing.
- RememBite
Remember every dish you've eaten. Log meals, add notes and ratings, and rediscover favourites when you need them.
- FinFlow
Personal finance ledger for tracking income, expenses, accounts, credit cards, and loans — not an investment platform or AI advisor.
- FinKit
Free financial calculators — EMI, SWP, prepayment, and more — with GST-accurate math and a companion blog.
- Remexa
Context-aware personal memory assistant — reminders that fire at the right place and time, offline-first, with shared family lists.