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MilosMicun/README.md

Milos Mirkovic

Solidity / Smart Contract Engineer ⚙️

Focused on DeFi protocol engineering, smart contract security, accounting systems, and adversarial testing.

Flagship Project

RWA Invoice Financing Protocol

A Solidity protocol for financing tokenized receivables through senior/junior ERC-4626 liquidity pools.

Key components:

  • NFT-based invoice registry and lifecycle state machine
  • senior / junior ERC-4626 liquidity pools
  • risk-based advance and exposure controls
  • oracle-driven settlement and default resolution
  • deterministic waterfall accounting
  • junior-first loss absorption
  • role-separated protocol permissions
  • fuzz and stateful invariant testing
  • independent ghost accounting for invariant verification

Repository:

https://github.com/MilosMicun/rwa-invoice-financing

Protocol Engineering Focus

Accounting & State Machines

Designing protocols where correctness depends on explicit relationships between:

  • assets
  • liabilities
  • locked liquidity
  • credit exposure
  • recoveries
  • losses
  • terminal lifecycle states

Testing & Verification

Using Foundry for:

  • unit testing
  • failure-path testing
  • fuzz testing
  • stateful invariant testing
  • adversarial execution sequences

The goal is not only to prove that transactions succeed, but that protocol accounting remains correct across arbitrary valid state transitions.

Security

Working with protocol-level security concerns including:

  • access control
  • reentrancy
  • accounting consistency
  • rounding and precision
  • oracle timing
  • stale data
  • state transition safety
  • liquidity constraints

EVM & DeFi Fundamentals

Supporting projects explore:

  • EVM execution and storage
  • lending mechanics
  • ERC-4626 vaults
  • AMM pricing and TWAP
  • oracle systems
  • interest-rate models
  • liquidation mechanics

Engineering Approach

Smart contracts are not just code.

They are:

  • state machines
  • accounting systems
  • permission systems
  • adversarial environments

Correctness emerges from:

math + state + time

Pinned Loading

  1. rwa-invoice-financing rwa-invoice-financing Public

    RWA invoice financing protocol with ERC-4626 senior/junior vaults, NFT-based receivables, oracle-driven settlement, waterfall accounting, and stateful invariant testing.

    Solidity

  2. lending-protocol-engine lending-protocol-engine Public

    Modular DeFi lending protocol with ERC4626 vaults, indexed debt accounting, liquidation mechanics, oracle safety, and invariant-tested solvency.

    Solidity

  3. defi-lending-primitives defi-lending-primitives Public

    Building core components of a DeFi lending protocol: oracles, AMM pricing, interest rate models, and liquidation mechanics.

    Solidity

  4. solidity-security-patterns solidity-security-patterns Public

    Smart contract security patterns: exploit → fix → invariant, with Foundry tests and gas analysis.

    Solidity

  5. foundry-testing-patterns foundry-testing-patterns Public

    Solidity smart contract testing patterns using Foundry: unit, integration, fork, fuzz and invariant testing.

    Solidity

  6. evm-simulator-js evm-simulator-js Public

    A minimal EVM simulator in JavaScript implementing stack, memory, storage and opcode execution to explore Ethereum Virtual Machine internals at the instruction level.

    JavaScript 1