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DLT Engineer
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Data

DLT Engineer

32 - 35 USD/hNet per hour - B2B
32 - 35 USD/hNet per hour - B2B
Type of work
Freelance
Experience
Mid
Employment Type
B2B
Operating mode
Remote

Tech stack

    English

    C1

    Hardhat

    advanced

    Solidity

    advanced

    proxy

    regular

    CI/CD

    regular

    Ethereum

    regular

Job description

Online interview

We are seeking an experienced Distributed Ledger Technology (DLT) Engineer to join a cutting-edge financial innovation project, leading the design and development of secure, upgradeable smart contracts and tokenized deposit platforms within regulated blockchain ecosystems.


Key Responsibilities:

  • Design and implement secure, upgradeable smart contracts using Proxy, UUPS, and Beacon design patterns;

  • Develop smart contracts aligned with standards like ERC-20, ERC-721, and other protocols relevant to financial tokenization;

  • Collaborate with various teams to create blockchain-based representations of cash, MMFs, and deposit instruments;

  • Integrate blockchain solutions with digital asset custody platforms such as Fireblocks and similar providers;

  • Develop and maintain on-chain data indexing strategies for access by off-chain applications;

  • Apply security best practices throughout the smart contract development lifecycle, including reviews and audits;

  • Use platforms like Alchemy, Infura, or Chainstack to ensure reliable access to blockchain infrastructure;

  • Deploy and manage decentralized applications on Blockchain-as-a-Service (BaaS) platforms, with a preference for Kaleido;

  • Contribute to R&D initiatives focused on central bank digital currency (CBDC) settlement models (e.g., mBridge, Project Ensemble);

  • Assist with CI/CD and DevOps workflows related to decentralized deployments.


Must have skills:

  • At least 3 years of hands-on experience developing EVM-compatible smart contracts in Solidity;

  • Familiarity with testing frameworks like Hardhat, Truffle, and Ganache;

  • Solid understanding of smart contract upgradeability patterns (Proxy, UUPS, Beacon);

  • Experience in secure contract development, including vulnerability identification and remediation;

  • Understanding of tokenization processes within regulated financial environments (e.g., cash, MMFs, deposits);

  • Integration experience with digital asset custody and wallet platforms (e.g., Fireblocks, Ledger Vault, MetaMask Institutional);

  • Practical knowledge of blockchain data indexing tools;

  • Strong grasp of Ethereum infrastructure and blockchain access providers (e.g., Alchemy, Infura, Chainstack);

  • Experience deploying solutions via enterprise BaaS platforms like Kaleido;

  • Familiarity with ongoing CBDC projects and their settlement frameworks (e.g., mBridge, Ensemble, Dunbar).


Preferred Skills:

  • Experience with enterprise identity and access management systems (OAuth2, SAML) and IDP integrations;

  • Knowledge of Kubernetes, containerized dApp deployments, and Helm for orchestration;

  • Background in cloud-native solutions, particularly on AWS or Azure;

  • Proficiency in Java and Spring Boot, particularly for backend integrations with smart contracts;

  • Understanding of KYC/AML processes or experience working with compliance solution providers.


The recruitment process includes:

  • HR screening 30min Zoom call;

  • 1h technical interview;

  • General call with the team leader;

  • Making an offer meeting.

32 - 35 USD/h

Net per hour - B2B

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