Job Description

Senior Infrastructure Engineer - High-Performance Blockchain Services

Location: New York, San Francisco (Office)

Compensation: $200K - $400K

Join the Infrastructure & Platform team at a high-growth crypto derivatives exchange that is rapidly capturing market share in a multi-billion dollar annual sector. Our current focus is on building a multi-asset margin feature that leverages blockchain technology to allow users to post variable forms of collateral, which is essential as multi-asset margin comprises over 86% of crypto accounts.

You will play a pivotal role in designing, architecting, and deploying highly reliable, scalable blockchain services with lightning-fast performance. You will lead the development of mission-critical core infrastructure that powers our products, enabling us to bring financial venues directly to the user.

The Senior Infrastructure Engineer will be responsible for building the core components of a high-throughput, low-latency distributed system, focusing heavily on performance and cryptographic integrity.

• Core Systems Development: Develop foundational components including storage layers, execution engines, transaction pools, gossip protocols, and state-machine replication mechanisms to deliver high-throughput, low-latency performance.
• Consensus Engineering: Implement, harden, and extend consensus algorithms (e.g., PBFT, HotStuff, Tendermint) to guarantee safety, liveness, and high performance under real-world network conditions.
• Performance Optimization: Deeply profile CPU, memory, I/O, and network stacks, identify system bottlenecks, and push performance limits across the platform.
• Cryptography Integration: Integrate diverse cryptographic primitives, including hash functions, Merkle proofs, digital signatures, encryption schemes, key-exchange protocols, and zero-knowledge proof systems.
• Networking & Transport: Design and implement reliable networking components for peer discovery, NAT traversal, connection pooling, load balancing, congestion control, encrypted networking (TLS), and multiplexed transports (e.g., TCP, UDP, QUIC).

Requirements

• Experience: 2+ years of professional experience building blockchain-based distributed systems and consensus engines.
• Low-Level Languages: Expert proficiency in C++, Rust, Zig, or other low-level languages.
• Consensus Deep Dive: Deep understanding of consensus protocols (e.g., PBFT, HotStuff, Tendermint) and distributed systems theory.
• Cryptography Fundamentals: Strong knowledge of cryptography fundamentals, including hashing, Merkle trees, multisignatures, and elliptic-curve cryptography.
• Networking: Solid networking experience, covering TCP/UDP, QUIC, peer discovery, and NAT traversal.
• Database Experience: Hands-on experience with key-value store databases (e.g., RocksDB, MDBX) for efficient state storage and high-throughput access.
• Legal: Authorized to work in the United States.

Benefits

We offer a highly competitive compensation package commensurate with the specialized nature of this role:

• Salary: $200,000 - $400,000 annual base salary.
• Equity: Generous company equity package.
• Health: Comprehensive medical, dental, and vision insurance with Health Savings Account (HSA) options.
• Time Off: Paid vacation and holidays.
• Retirement: Retirement plan (e.g., 401(k)) with employer matching contributions.

Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

Commitment to Equality and Accessibility:

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. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.

MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.

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