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Senior Protocol Engineer

Cielo Projects


Job Location:

New York City, NY - USA

Monthly Salary: Not provided by the employer
Posted: 14 October 2026 (5 days ago)
Application Deadline: 11 January 2027
Vacancies: 1 Vacancy

Job Summary

Senior Protocol Engineer

Role summary

Owns significant workstreams within the smart-contract release train (TD Coin Settlement Orchestrator Fiat Relay Fusion Root Orchestrator Factory) and contributes to maintaining the Fusion-specific upstream diff against Optimism guiding Protocol Engineers through implementation.

Key responsibilities

  • Design and build components within the smart-contract release train.
  • Contribute to maintaining and testing the Fusion-specific upstream diff against Optimism.
  • Guide Protocol Engineers through implementation and review their work.
  • Carry the on-call escalation rotation and join incident bridges for protocol-behavior issues.
  • Support external audit preparation and remediation for assigned components.

Qualifications :

Required experience & qualifications

  • 5 years in blockchain/DLT smart-contract engineering or backend distributed systems.
  • Strong Solidity/EVM (or equivalent) and integration skills.
  • Experience with rollup/upstream-diff maintenance (Optimism stack or comparable) an advantage.
  • Comfort carrying production on-call responsibility.

Success measures

  • On-spec on-time delivery within the release train.
  • Post-release defect and rework rate.
  • On-call response within target.

Remote Work :

No


Employment Type :

Full-time


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