Aakash Mandal

Systems & Protocol Infrastructure Engineer
Non-Custodial Execution Layers • Zero-Knowledge Settlement • Autonomous Payment Rails • Embedded DSP

Building high-throughput SVM instruction parsers, confidential Soroban protocols, and scoped smart account execution layers where users never surrender capital custody.

Sub-second trade intent detection and allocation-weight execution on Solana SVM.

• Problem: Copy-trading bots blindly mirror raw wallet transactions. Heterogeneous follower balances cause catastrophic portfolio drift, front-running slippage, and custodial key risk.
• Architecture:
  • Dual ingestion pipeline pairing Yellowstone gRPC (~200ms signature capture) with Helius Enhanced Webhooks and Upstash Redis atomic locks.
  • Custom Rust SevenLabs Carbon SVM parser decoding instructions at the source for Jupiter, Raydium, and Meteora.
  • On-chain Anchor vault program (stellalpha_vault) implementing isolated UserVault -> TraderState PDAs with delegated Jupiter swap policies (zero withdrawal rights).
  • Asymmetric execution policy that drops stale BUYs older than 10s while guaranteeing exits.
• Tech Stack: Solana SVM • Rust • Anchor • Yellowstone gRPC • SevenLabs Carbon • Jupiter SDK • Redis • TypeScript
• Verified Links: Live App (stellalpha.xyz) • App Repository • Vault Program Repository • Whitepaper (PDF) • DoraHacks BUIDL

Zero-knowledge private balance and shielded settlement pools on native Soroban BN254.

• Problem: Public ledgers turn every treasury movement, trade strategy, supplier payment, and payroll transfer into permanently exposed public metadata.
• Architecture:
  • Shielded pool contracts on Soroban enabling users to deposit public XLM, hold encrypted note commitments, and withdraw to unlinked addresses via ZK proofs.
  • Circom Groth16 circuits using Poseidon2 hashing for note commitments and nullifier generation, verified on-chain via native Soroban BN254 host functions.
  • Client-side browser Web Worker proof generation inside Next.js (zero private key or witness data leaves the client device).
  • Decoupled transaction relayer service deployed on Railway for fee-bumped anonymous withdrawals.
• Tech Stack: Stellar Soroban • Rust • Circom 2.x • Groth16 • Poseidon2 • BN254 Host Functions • snarkjs • Railway
• Verified Links: Live DApp (vayyl.vercel.app) • Protocol Docs Repository • Testnet Fixed-Note Pool Contract

Connecting scoped MetaMask permissions to machine-to-machine x402 HTTP micropayments.

• Problem: Multi-agent autonomous swarms either require manual user signatures for every subtask API call or demand dangerous full private key custody.
• Architecture:
  • Single bounded budget permission granted via MetaMask Smart Accounts (ERC-7715 / ERC-7710 / EIP-7702).
  • Manager Agent splits mission budgets into sub-budgets and delegates payments to specialist agents (Contract Scanner, Wallet Profiler, Market Context).
  • Integrated x402 HTTP payment protocol on Base Sepolia for stateless machine-to-machine paid API endpoints without human re-signing.
  • Interactive ReactFlow WorkGraph rendering real-time budget trails, payment receipts, and blocked safety gates.
• Tech Stack: ERC-7710 • ERC-7715 • x402 Protocol • MetaMask Smart Accounts • Base Sepolia • ReactFlow • TypeScript
• Verified Links: Code Repository • Proven on Base Sepolia Testnet

Poseidon Merkle membership proofs and on-chain nullifiers on Stellar Soroban.

• Problem: Distributing grants, scholarships, or airdrops requires validating user eligibility without exposing identity, while strictly preventing duplicate claims (Sybil resistance).
• Architecture:
  • Circom eligibility circuits proving knowledge of a secret committed to a Poseidon Merkle tree without revealing the leaf index or recipient identity.
  • Soroban smart contracts atomically verifying Groth16 proofs, registering nullifier hashes, and rejecting duplicate claims with error NullifierAlreadyUsed.
• Tech Stack: Circom 2.x • SnarkJS • Poseidon Merkle Tree • Stellar Soroban • Rust • Freighter
• Verified Links: Verified Claim Transaction • Verifier Contract • Campaign Contract

Full-stack IoT energy monitoring system with True RMS AC DSP and MQTT WebSockets command center.

• Problem: Monitoring real-time power consumption and remote appliance switching typically relies on closed proprietary hardware with high latency.
• Architecture:
  • Custom ESP32 C++ firmware with continuous ADC sampling calculating True RMS AC voltage, current, active power, and power factor.
  • Software noise-gating filter eliminating ADC offset drift and sensor idle noise.
  • Bidirectional MQTT over WebSockets pipeline enabling millisecond-latency telemetry reporting and instantaneous relay control.
• Tech Stack: ESP32 (C++) • FreeRTOS • MQTT WebSockets • Next.js 14 • Recharts • Supabase
• Verified Links: Live App (wattwave.vercel.app) • Code Repository

Scoped MetaMask keeper delegations and ERC-4337 UserOperations for non-custodial rebalancing.

• Problem: Yield optimization across liquidity pools forces users to execute continuous manual transactions or surrender fund custody.
• Architecture:
  • Non-custodial automated yield rebalancer orchestrating staking positions across Kintsu (sMON) and Magma (gMON) on Monad Testnet.
  • Implemented the MetaMask Delegation Toolkit (ERC-7710) for scoped EIP-712 keeper permissions (rebalancing rights without withdrawal rights).
  • ERC-4337 UserOperation batching and submission via Pimlico bundler and EntryPoint contract.
• Tech Stack: Monad Testnet • ERC-4337 • MetaMask Delegation Toolkit • Pimlico Bundler • Envio Indexer • Solidity
• Verified Links: Code Repository • HackQuest Project Page • Demo Video

Systems & Protocol  : Rust • Solana SVM • Anchor • Yellowstone gRPC • Carbon Parser • Stellar Soroban • Solidity • Foundry
Zero-Knowledge      : Circom 2.x • SnarkJS • Groth16 • Poseidon2 • Merkle Trees • Nullifiers • BN254 Host Functions
Autonomous Rails    : x402 Micropayments • MetaMask Smart Accounts (ERC-7715/7710) • 1Shot Relayer • Multi-Agent WorkGraphs
Telemetry & Runtime : ESP32 C++ • FreeRTOS • True RMS DSP • MQTT WebSockets • Next.js 15 • React 19 • TypeScript • Tailwind v4

Package / Repository	Description	Domain & Stack
smart-mailto	Zero-dependency TypeScript library providing smart webmail routing (Gmail, Outlook, Proton, Yahoo) with automated clipboard fallbacks.	NPM Package TypeScript • React
solana-wallet-cleaner	Automated CLI utility scanning SPL and Token-2022 accounts: swaps dust to SOL via Jupiter, burns spam tokens, and closes empty ATAs to reclaim ~0.002 SOL rent per account.	Solana Automation Node.js • Jupiter SDK
0xGasless Smart Wallet Debugger	Open-source GUI debugger for testing and executing 0xGasless smart accounts directly on Avalanche Mainnet with direct AgentKit controls.	Developer Tooling Viem • @0xgasless/agentkit
TP-Link Firmware Stripper Live Web Tool	Browser-based client binary buffer tool stripping 131,584-byte OEM bootloader headers for OpenWRT recovery, with an authoritative Community Restoration Guide.	Embedded Firmware Client Binary Buffer
gatepass	Multi-role residential campus gate pass management system featuring tokenized multi-step approvals and real-time security QR check-in/out verification.	Full-Stack Web Next.js 15 • React 19 • MongoDB