Protocol Engineer (Golang)

Hyring®; Concord (CA); On-site; USD 180,000 - 300,000; Full time

Job summary

Hyring leads the design and development of a next-gen Digital Asset Platform focused on secure, confidential institutional transactions. The Lead Specialty Software Engineer (Protocol Engineer) will architect a blockchain settlement engine and implement privacy-preserving cryptographic solutions using Golang and distributed systems.

The role emphasizes high-performance distributed applications, with responsibilities spanning adoption of ECC, MPC networks, and extensive cryptographic techniques

Qualifications

• 3+ years of Golang backend/system programming experience.
• 6 months+ hands-on ECC experience.
• 1+ year in distributed systems including BFT, P2P, state replication.
• 5+ years of professional software engineering experience.
• Experience with YugabyteDB, PostgreSQL, Liquibase is a plus.

Responsibilities

• Design and develop blockchain applications using Golang, Cosmos SDK, and CometBFT (Tendermint).
• Build and optimize core blockchain settlement protocols for institutional financial transactions.
• Implement cryptographic techniques such as Pedersen Commitments and Bulletproofs.

Skills

Golang

ECC

Distributed Systems

Software Eng

Databases

Job description

Job Title: Lead Specialty Software Engineer – Protocol Engineer

Location: Concord, CA

Project: Digital Asset Platform / Blockchain

Work Authorization: Candidates must not require employment sponsorship.

Job Overview

We are seeking an experienced Lead Specialty Software Engineer (Protocol Engineer) to design, develop, and optimize a next-generation Digital Asset Platform supporting secure, confidential, and regulatory-compliant institutional financial transactions.

The ideal candidate will have strong experience in Golang, distributed systems, blockchain protocols, elliptic curve cryptography, and consensus algorithms.

This role involves architecting a blockchain settlement engine, implementing privacy-preserving cryptographic solutions, and developing high-performance distributed applications.

Must-Have Technical Skills

• Golang (Go): 3+ years of backend or systems programming experience, with expert-level Go development skills.
• Elliptic Curve Cryptography (ECC): Minimum 6 months of hands‑on experience implementing or working with ECC.
• Distributed Systems: 1+ year of experience with BFT consensus algorithms, peer‑to‑peer networking, and state replication.
• Software Engineering: 5+ years of professional software engineering experience.
• Database Technologies: YugabyteDB, PostgreSQL, and/or Liquibase, as highlighted in the top skills.

Key Responsibilities

• Design and develop custom blockchain applications using Golang, Cosmos SDK, and CometBFT (Tendermint).
• Build and optimize core blockchain settlement protocols for institutional financial transactions.
• Implement cryptographic techniques such as Pedersen Commitments and Bulletproofs (Zero‑Knowledge Range Proofs).
• Develop custom ABCI++ extensions, including PrepareProposal and Vote Extensions.
• Implement Multi‑Party Computation (MPC) mixing networks.
• Design KVStore‑based state machines supporting encrypted balances.
• Optimize elliptic curve operations, including scalar multiplication and point addition.
• Develop secure off‑chain query mechanisms and permission‑based regulatory auditing capabilities.
• Ensure high availability, low latency, scalability, and transaction confidentiality.

Preferred Qualifications

• Hands‑on experience with Cosmos SDK, CometBFT, or Tendermint.
• Knowledge of Zero‑Knowledge Proofs (ZKP), Bulletproofs, and Sigma protocols.
• Experience with Pedersen Commitments and homomorphic encryption.
• Familiarity with Multi‑Party Computation (MPC) and Verifiable Secret Sharing (VSS).
• Experience with Ristretto255 or gnark‑crypto.
• Strong understanding of blockchain consensus architecture.
• Ability to translate mathematical research papers into production‑grade code.
• Knowledge of Account Model versus UTXO Model.
• Experience in financial services, FinTech, payments, or trading platforms.