Senior Protocol Engineer job opportunity at MLabs.

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Date2026-02-13T17:07:08.655Z bot
MLabs Senior Protocol Engineer
Experience: 5-years
Pattern: full-time
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Bulgaria

Employment: Full-time via MLabs Engagement: Contracted to a UAE-based enterprise blockchain / fintech client Location: Remote (Eastern Europe / MENA / India preferred) MLabs is hiring a Senior Protocol Engineer to contribute to the core infrastructure of a custom Layer-1 blockchain ecosystem supporting enterprise-grade financial systems. You will work at the protocol layer, contributing to consensus mechanisms, node architecture, networking, and system-level performance. This role requires deep distributed systems expertise and hands-on experience working on blockchain infrastructure rather than application-layer smart contracts. The ideal candidate is comfortable operating in performance-critical, security-sensitive environments and contributing to protocol evolution discussions. Responsibilities Design and implement core blockchain protocol components Contribute to consensus performance, scalability, and reliability improvements Optimize node performance and system-level efficiency Work on P2P networking and state synchronization mechanisms Identify and mitigate protocol-level vulnerabilities Collaborate with smart contract, infrastructure, and backend teams Participate in architecture reviews and protocol evolution discussions 5+ years of software engineering experience Strong background in distributed systems Experience working on Layer-1 blockchain infrastructure Proficiency in Rust, Go, C++, or similar systems-level language Strong understanding of consensus mechanisms (PoS, BFT, etc.) Experience working in high-performance, production environments Preferred Experience contributing to open-source blockchain projects Experience working on validator or node implementations Experience with networking protocols and P2P systems Experience in fintech or regulated environments Experience working in distributed remote teams

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