Blockchain DeveloperGoQuant • India, India
Blockchain Developer
GoQuant • India, India
4 days ago
Job descriptionDevelop transaction batching and relayer services for efficient on-chain settlement Implement Merkle tree verification for trade batch integrity Build wallet transaction signing infrastructure for automated settlement Create monitoring systems for failed settlements and automatic retry logic Design and implement program-controlled vaults with secure custody patterns Integrate with Pyth / Switchboard price oracles for mark price and funding rates Build comprehensive test suites (unit, integration, and on-chain testing) Deploy and maintain programs on Solana devnet / testnet / mainnet Performance optimization for high-frequency trading scenarios Documentation of smart contract architecture and settlement flows Performance : Handle 100+ trades / second with sub-second settlement latency Security : Manage user funds non-custodially with multiple safety mechanisms Scalability : Batch thousands of trades efficiently to minimize transaction costs Risk Management : Build real-time liquidation systems that protect protocol solvency UX : Enable fast trading via ephemeral wallets while maintaining security 3+ years of professional Rust development experience 1+ years building on Solana (programs deployed to mainnet preferred) Strong understanding of Solana's programming model (accounts, PDAs, CPIs, rent) Experience with Anchor framework for Solana program development Proficiency with cryptographic signatures and wallet transaction signing Deep knowledge of blockchain fundamentals (consensus, finality, state management) Understanding of perpetual futures mechanics (funding rates, leverage, liquidations) Experience with DeFi protocols (DEXs, lending, derivatives) Knowledge of oracle integration patterns Familiarity with common DeFi security patterns and vulnerabilities Strong systems programming background Experience with concurrent / parallel programming Ability to write clean, well-tested, production-quality code Comfortable working in fast-paced startup environment Self-directed with strong problem-solving skills Experience building settlement / relayer infrastructure for DEXs Knowledge of dark pool or institutional trading mechanics Contributions to open-source Solana projects Experience with Solana web3.js, anchor-ts, or similar SDKs Background in smart contract security auditing Familiarity with TypeScript / Node.js for off-chain components Understanding of market maker systems and order book mechanics Previous work on high-leverage or derivatives protocols Experience with program upgrades and migration strategies
SOLANA BLOCKCHAIN ENGINEER (RUST) (Paid)
Role Overview
Job Title : Solana Blockchain Engineer - Smart Contracts & Settlement Infrastructure
Company : GoQuant Technologies Inc.
Location : Remote
Employment Type : Full-time
Start Date : Immediate
Primary Responsibilities
Smart Contract Development (60%)
- Design and implement Solana programs using Rust and Anchor framework
- Build perpetual futures contracts with dynamic funding rates (1-second calculation, hourly payment)
- Develop position management system supporting up to 1000x leverage with robust liquidation mechanics
- Implement collateral vaults, margin calculations, and PnL tracking
- Create ephemeral wallet authority system with on-chain permission management
- Build settlement batching mechanisms for high-throughput trade execution
Settlement Infrastructure (30%)
Integration & Testing (10%)
Key Technical Challenges
Required Qualifications
Technical Skills :
DeFi Experience :
Software Engineering :
Preferred Qualifications
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Blockchain Developer • India, India
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