Senior C++ Engineer - Blockchain Core & Consensus

Deciml; New York (NY); On-site; USD 180,000 - 260,000; Full time

Job summary

Deciml is seeking a C++ Engineer to work on the distributed systems and consensus engine at the core of a global blockchain network. You will tackle deep systems challenges, optimize peer-to-peer communication, and contribute to incentive mechanisms that drive decentralized stability and growth.

You will join a team of engineers collaborating on protocol evolution, consensus modeling, and system architecture, making direct contributions to next-generation blockchain infrastructure.

Qualifications

• 4+ years of professional software engineering experience.
• Bachelor's or Master's degree in Computer Science or equivalent.
• Deep, hands-on expertise in modern C++ (production-level experience required).
• Strong understanding of software design principles and patterns for modular, extensible systems.
• Experience contributing to or developing in blockchain, distributed ledger, or decentralized protocol environments or demonstrated passion through open-source projects, research, or personal initiatives.

Responsibilities

• Design and build critical components of the blockchain's core distributed system and consensus layer.
• Develop scalable, extensible, and secure infrastructure powering thousands of on-chain applications.
• Collaborate with engineering leadership and community contributors on architectural design and protocol evolution.
• Write clean, production-quality C++ code optimized for performance and reliability.
• Investigate and refactor performance bottlenecks across the system stack.
• Contribute to detailed technical specifications and RFCs, helping shape design standards for the engineering organization.
• Participate actively in code reviews and lead technical discussions on systems architecture and engineering best practices.

Skills

C++

Distributed systems

Code reviews

Technical communication

Blockchain interest

Education

Bachelor's or Master's in Computer Science

Job description

Deciml is seeking a C++ Engineer to work on the distributed systems and consensus engine at the core of a global blockchain network. You will tackle deep systems challenges, optimize peer-to-peer communication, and contribute to incentive mechanisms that drive decentralized stability and growth.

You will join a team of engineers collaborating on protocol evolution, consensus modeling, and system architecture, making direct contributions to next-generation blockchain infrastructure.