Category Labs

About the Company

Category Labs (formerly known as Monad Labs) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to design and build step-function improvements over existing blockchain solutions. Such greenfield systems include from-scratch databases, Byzantine Fault Tolerant consensus mechanisms, JIT compilers for EVM bytecode, and much more. We recently raised $225M in series A funding, and are backed by Paradigm, Electric Capital, Dragonfly Capital, and others. Category Labs is building the next generation of blockchain infrastructure with Monad, an EVM-compatible layer 1 that dramatically improves performance. Deep optimization is needed across all levels of the stack - from the database layer, to the virtual machine layer, to the consensus and networking layer - in order to streamline EVM transaction processing. We are introducing these low-level optimizations, allowing consumer-grade hardware to deliver exceptional performance while maintaining a high degree of decentralization.

Listed Jobs

Company Name

Category Labs

Job Title

Senior Software Engineer

Job Description

**Job Title**: Senior Software Engineer **Role Summary**: Lead research, design, and development of blockchain protocol improvements, focusing on distributed algorithms, cryptography, and consensus mechanisms. Collaborate with a high-performing team to build scalable, high-performance systems in Rust. **Expectations**: - Minimum 5 years of professional software engineering experience. - Strong background in distributed systems, blockchain engineering, or related fields. - Expertise in systems architecture and performance optimization. **Key Responsibilities**: - Design and implement core protocol improvements (consensus mechanisms, gossip protocols, state synchronization). - Conduct experiments to evaluate system behavior under worst-case scenarios. - Architect performant system components in Rust for decentralized infrastructure. - Analyze interactions with blockchain subsystems (rollups, bridges, staking). **Required Skills**: - Proficiency in Rust, C++, or C. - Experience building high-performance systems (databases, embedded systems). - Deep understanding of distributed algorithms, consensus protocols, and cryptographic principles. - Mastery of software architecture, memory management, and performance profiling. - Strong collaborative problem-solving and communication abilities. **Required Education & Certifications**: - Bachelor’s degree in Computer Science or equivalent technical training/experience. - No certifications specified.

New york city, United states

Hybrid

Senior

28-09-2025