Senior L2 Engineers job opportunity at MLabs.

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Date2026-02-13T17:59:56.506Z bot
MLabs Senior L2 Engineers
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 L2 Engineer to contribute to the design and development of Layer-2 scaling solutions within a custom blockchain ecosystem supporting enterprise-grade financial systems. You will work on rollup mechanisms, transaction batching, cross-layer communication, and performance optimization between Layer-1 and Layer-2 environments. This role requires strong blockchain systems knowledge with a focus on scalability, execution logic, and security. The ideal candidate has hands-on experience building or contributing to Layer-2 or scaling infrastructure in production environments. Responsibilities Design and implement Layer-2 scaling components Contribute to rollup architecture and transaction batching logic Develop cross-layer communication and bridging mechanisms Optimize throughput and latency across blockchain layers Ensure correctness and security of L2 state transitions Collaborate with protocol, smart contract, and infrastructure teams Participate in architecture discussions and performance reviews 5+ years of software engineering experience Strong understanding of blockchain architecture Experience working on Layer-2 solutions (rollups, sidechains, scaling infrastructure) Proficiency in Rust, Go, or similar systems-level language Strong understanding of state machines and transaction lifecycle Experience working in performance-sensitive distributed systems Preferred Experience with optimistic or zk-rollups Experience with cross-chain messaging or bridging systems Experience collaborating with Layer-1 protocol teams Experience in fintech or regulated environments Experience working in distributed remote teams

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