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Blockchain Engineer

NYC, NY
Full-time
2+ years experience
$200-300k + Equity

Join our Infrastructure & Platform team to architect and deploy highly reliable, scalable blockchain services with lightning-fast performance. You'll lead the development of mission-critical core infrastructure that powers our products.

What you'll do
  • Develop storage layers, execution engines, transaction pools, gossip protocols and state-machine replication to deliver high-throughput, low-latency performance.
  • Implement, harden, and extend consensus algorithms to guarantee safety, liveness and high performance under real-world network conditions.
  • Profile CPU, memory, I/O, and network stacks, identify bottlenecks and push performance limits.
  • Integrate diverse cryptographic primitives including hash functions, Merkle proofs, digital signatures, encryption schemes, key-exchange protocols and proof systems.
  • Design and implement reliable peer discovery, NAT traversal, connection pooling, load balancing, congestion control, encrypted networking (TLS), and multiplexed transports (e.g. TCP, UDP, QUIC).
What you bring
  • 2+ years building blockchain-based distributed systems and consensus engines.
  • Expert proficiency in C++, Rust, Zig, or other low-level languages.
  • Deep understanding of consensus protocols (e.g. PBFT, HotStuff, Tendermint).
  • Strong cryptography fundamentals: hashing, Merkle trees, multisignatures, elliptic-curve cryptography.
  • Solid networking experience: TCP/UDP, QUIC, peer discovery, NAT traversal.
  • Hands-on experience with key-value store databases for efficient state storage and high-throughput access (e.g. RocksDB, MDBX).
Compensation & Benefits
  • $200-300k annual salary.
  • Company equity.
  • Medical, dental, and vision insurance with HSA options.
  • Paid vacation and holidays.
  • Retirement plan with employer match.
Interested?
Send an email to hiring@fullstack.trade with the role as the subject. Tell us why you are interested in joining Fullstack and what you would bring to the team. Please paste your CV/resume in email body, do not add it as an attachment. Candidate must have authorization to work in the U.S.