Full Stack Blockchain Engineer with hands-on production experience across three equal pillars: Solana (Anchor, SPL, PDAs, CPIs), Ethereum/EVM (Solidity, Hardhat, OpenZeppelin), and Rust backend systems (Axum, Tokio, async microservices). I design and ship complete decentralized systems — from on-chain programs and smart contracts to high-performance Rust APIs, event-driven relayers, and React frontends.

Currently building at Simreka Softwares Pvt. Ltd. and actively targeting high-impact roles in Solana, EVM, and Rust-native backend ecosystems.

Solana        (Anchor · SPL · PDAs · CPIs · Token 2022 · sBPF)
Ethereum/EVM  (Solidity · Hardhat · OpenZeppelin v5 · ethers.js v6)
Rust Backend  (Axum · Tokio · Serde · SQLx · async/await · REST & gRPC)
Node.js       (Express · Event-driven relayers · WebSockets · MongoDB)
Frontend      (React · Next.js · Redux Toolkit · TypeScript)

Lock-and-mint architecture bridging ERC-20 tokens across L1/L2 chains

• Pattern: Lock on source chain → event-driven Node.js relayer → mint on destination chain
• Stack: Solidity · Hardhat · OpenZeppelin v5 · ethers.js v6 · Node.js · React · MetaMask
• Status: Deployed & verified on live testnets

Permissionless lending and borrowing with collateral management

• Features: Deposit, borrow, repay, liquidation logic, interest accrual
• Stack: Solidity · Hardhat · OpenZeppelin · ethers.js · React frontend
• Pattern: Over-collateralized lending with on-chain price feed integration

On-chain programs leveraging core Solana primitives

• Scope: Custom PDAs · CPI composition · SPL Token minting & transfer · Token 2022 extensions
• Stack: Rust · Anchor · @solana/web3.js · Solana CLI
• Concepts: Account validation · Program-derived addresses · Cross-program invocations · Associated token accounts

Autonomous agent for smart contract vulnerability detection and on-chain analytics

• Features: Static analysis of Solidity contracts · AI-driven audit report generation · On-chain transaction pattern recognition · Real-time anomaly detection
• Stack: Rust · Python · LLM APIs · Solidity AST parsing · Node.js · React dashboard
• Detects: Reentrancy · Integer overflow · Access control flaws · Unchecked external calls

Async transaction processing microservice built for blockchain workloads

• Features: Transaction queuing · Status tracking · Retry logic with backoff · Webhook notifications · Multi-chain support
• Stack: Rust · Axum · Tokio · Serde · SQLx · PostgreSQL · REST API
• Design: Fully async non-blocking architecture — zero-cost abstractions and memory safety for high-throughput, low-latency blockchain pipelines

These are the knowledge signals that separate engineers from tutorial-followers.

Solana / Anchor

✦ Program Derived Addresses (PDAs)    ✦ Cross-Program Invocations (CPIs)
✦ SPL Token standard                  ✦ Token 2022 extensions
✦ Associated Token Accounts (ATAs)    ✦ Account validation & constraints
✦ sBPF VM internals                   ✦ Anchor account macros & IDL generation
✦ Instruction data serialization      ✦ Rent & lamport management

Ethereum / EVM

✦ ERC-20 / ERC-721 / ERC-1155         ✦ Proxy patterns (UUPS, Transparent)
✦ Cross-chain bridge architecture      ✦ Lock-and-mint pattern
✦ Over-collateralized lending          ✦ Liquidation mechanics
✦ OpenZeppelin v5 contracts            ✦ Gas optimization techniques
✦ Event-driven relayer design          ✦ Hardhat forking & testing

Rust Backend Systems

✦ Async/await with Tokio runtime       ✦ Axum web framework & routing
✦ Serde serialization/deserialization  ✦ SQLx async DB queries
✦ REST API design & error handling     ✦ Middleware & tower layers
✦ Ownership & borrowing model          ✦ Trait-based abstractions
✦ Microservice architecture            ✦ gRPC with tonic

I'm actively looking for Blockchain Engineer and Rust Backend Engineer roles focused on:

• Solana programs (Anchor, Rust, SPL)
• Ethereum/EVM protocol & smart contract development
• Cross-chain infrastructure and bridge architecture
• High-performance Rust backend services for Web3 products

Reach me: sivajigsivajig703@gmail.com · LinkedIn