Blockchain Engineer

I’m helping Ant-Tech find a top candidate to join their team full-time for the role of Blockchain Engineer.

You'll architect the future of decentralized finance with high-performance blockchain infrastructure.

Compensation:

USD 200K - 300K/year

Location:

Hybrid: U.S. Route 1, New York, NY, USA

Mission of Ant-Tech:

"Connecting top talent with global organizations through strategic recruitment, advanced technology, and trusted expertise."

What makes you a strong candidate:

• You are proficient in User Datagram Protocol (UDP), TCP, Rust, Networking, Cryptography.
• You have +2 years experience in Blockchain.
• English - Conversational

Responsibilities and more:

How we're building it:

Blockchain under the hood, users will post collateral on our systems and we'll extend USDC collateral on venues of their choice. We will bring the venues to the user, as opposed to the user having to go to other venues. Users will be able to post various forms of collateral and eventually be able to trade on Hyperliquid without needing to sell down collateral.

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).

* Authorised to work in the United States.

Compensation & Package

* Company equity.

* Medical, dental, and vision insurance with HSA options.

* Paid vacation and holidays.

* Retirement plan with employer match.