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Backend Blockchain Developer- Solana Based Project

Dec 3
Permanent/full time
Switzerland
Apply nowSave this role
Responsibilities
Integration of Off-Chain and On-Chain Systems.
  • Build and maintain infrastructure to connect backend services with blockchain networks.
  • Ensure smooth interactions between off-chain APIs and on-chain data in a scalable environment
Optimize Blockchain Operations
  • Develop solutions to optimize gas usage for Ethereum and compute unit usage for Solana.
  • Ensure that transactions are as cost-efficient as possible.
Code Security and Auditing
  • Conduct in-depth reviews of smart contract code to identify vulnerabilities.
  • Collaborate with security auditors and implement necessary fixes to meet the highest security standards.
Testing and Validation
  • Write and execute comprehensive test cases to validate off-chain interactions.
  • Simulate edge cases and identify potential failures before production deployment.
Skills
  • ⁠Blockchain Expertise (Ethereum/Solana): Strong understanding of the Ethereum and Solana ecosystems, including their programming models (e.g., Solidity, Anchor, or Rust), transaction lifecycles, and consensus mechanisms.
  • ⁠Backend Development: Proficient in backend technologies such as Go and Rust. Experience building robust and scalable backend services that integrate with blockchain.
  • ⁠API Development and Integration: Skilled at creating and consuming REST or gRPC APIs to bridge blockchain functionality with user-facing applications.
  • ⁠Problem-Solving and Debugging: Strong ability to debug blockchain-related issues, analyze transaction failures, and identify solutions to complex challenges in distributed environments.
  • Attention to Detail: Ability to meticulously review code, catch edge cases, and optimize performance to ensure robust production systems.
  • Performance Optimization: Understanding of techniques to optimize performance, such as batching transactions, parallel processing, concurrent execution.
Additional skills
  • Testing Frameworks: Experience with blockchain testing frameworks like Hardhat, Foundry, Tenderly, Anchor, including unit and integration tests for smart contracts.
  • ⁠Knowledge of Cryptography: Basic understanding of cryptographic principles like hashing, elliptic curve signatures, or zero-knowledge proofs, enhancing your ability to build secure blockchain solutions.
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