Blockchain DeveloperGoQuant • Jhārkhand, Republic Of India, IN

Blockchain Developer

GoQuant • Jhārkhand, Republic Of India, IN

2 days ago

Job description

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%)

Develop 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

Integration & Testing (10%)

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

Key Technical Challenges

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

Required Qualifications

Technical Skills :

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)

DeFi Experience :

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

Software Engineering :

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

Preferred Qualifications

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

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Blockchain Developer • Jhārkhand, Republic Of India, IN

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