Bulgaria Remote (Global)

MLabs is hiring a Senior L2 Engineers

MLabs is looking for 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.

What You'll Do

  • 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

What We're Looking For

  • 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

Nice to Have

  • 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

Technical Stack

  • Rust
  • Go

Team & Environment

Collaborate with protocol, smart contract, and infrastructure teams.

Benefits & Compensation

  • Competitive international compensation
  • Remote-first work model
  • Long-term engagement on enterprise blockchain scaling initiatives
  • Opportunity to work on advanced blockchain architecture
  • Career growth within MLabs’ global engineering network

Work Mode

This is a global, remote-first position. We are actively hiring in Eastern Europe, MENA, and India.

At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats.

Required Skills
RustGoDistributed SystemsBlockchainProtocol DesignSystem ArchitecturePerformance OptimizationTroubleshootingNetworkingSecurityCode ReviewMentoringDocumentationAPI DesignTesting
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About company
MLabs
MLabs builds and evolves distributed backend systems that power primary products and customer-facing solutions in the high-growth Web3 and DeFi sector.
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Job Details
Category backend
Posted 2 months ago