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Senior Blockchain Developer

fxdx exchange

fxdx exchange

Software Engineering
Bengaluru, Karnataka, India
Posted on Feb 5, 2025
Overview

We are looking for a Senior Blockchain Developer with deep expertise in CEX and DEX architectures, smart contracts, and blockchain core infrastructure. You will be responsible for designing, developing, and optimizing trading systems, smart contracts, and backend services while ensuring security, scalability, and efficiency.

Key Responsibilities

Blockchain & Smart Contracts:

• Develop, audit, and optimize smart contracts for DEXs and liquidity protocols.

• Ensure security and efficiency in solidity, Rust, and Move-based smart contracts.

• Implement gas optimizations and advanced security best practices.

CEX & DEX Development:

• Architect and implement order books, matching engines, liquidity pools, and margin trading systems.

• Work with on-chain & off-chain trading infrastructure for high-performance transactions.

• Integrate cross-chain solutions and work with bridges, Layer 2s, and modular blockchain architectures.

Blockchain Core & Backend Development:

• Build backend systems to support blockchain applications, including indexing, API services, and trading engines.

• Understand and optimize blockchain consensus mechanisms, state transitions, and node architectures.

• Implement decentralized identity, key management, and account abstraction features.

Required Skills & Experience
  • Strong blockchain fundamentals – deep understanding of Ethereum, Solana, Cosmos, Polkadot, or custom Layer 1 chains.
  • Proficient in Rust, Solidity, TypeScript, and Golang for smart contracts and backend development.
  • Experience building CEX & DEX architectures, including order books, liquidity pools, and AMMs.
  • Deep understanding of blockchain consensus, execution engines, mempools, and state management.
  • Experience with MEV (Miner Extractable Value), gas optimizations, and smart contract security.
  • Knowledge of backend systems (Node.js, Go, Rust, or Python) and database architecture (PostgreSQL, Redis, etc.).
  • Understanding of bridges, Layer 2 rollups, and cross-chain solutions.
  • Experience working with web3 libraries (ethers.js, viem,).
  • Strong grasp of DeFi protocols, algorithmic trading, and market-making strategies.
Nice-to-Have

Experience working with high-frequency trading (HFT) and low-latency systems.Experience with zk-SNARKs, zk-Rollups, and other privacy-preserving technologies.Contribution to open-source blockchain projects.