Blockchain Engineer (Smart Contract)

Omen

New York City, New York, United States permanent

Posted: December 18, 2025

Required Skills

Job Description

About Omen

We’re Omen.

We’re building a single, platform where every type of asset at every leverageis tradable in one place.

Imagine buying spot equities and crypto, trading 10x levered Nvidia, short a YC company, or owning tokenized equity in the rental income of a Miami High-rise—all without hopping between fragmented tools, brokers, or protocols.

We believe the future of retail investing should feel as powerful and composable as institutional trading with as much optionality as possible: without sacrificing speed, correctness, or safety.

We’re a team of 8 full-time engineers working in-person out of our own full-floor office in the heart of midtown NYC. The team spans experienced trading-systems builders, career startuppers, seasoned app developers, and more; we are all deeply motivated towards furthering this mission.

Omen is backed by top seed investors and we are always sprinting to achieve our goals.

About this Role:

We are building a perpetual derivatives platform with a high-performance off-chain trading engine and on-chain settlement and enforcement. This role is in the blockchain team that is forming the smart contract layer that guarantees safety, correctness, and enforceability of trades executed off-chain.

You will collaborate closely with the trading systems team to define clean, explicit settlement semantics between off-chain state and on-chain finality.

Required Experience

• Strong Solidity and EVM smart contract experience

• Experience building DeFi protocols or financial smart contracts

• Deep understanding of:

• Perpetual futures mechanics

• Margin and liquidation logic

• Oracle usage and price feeds

• Experience designing contracts that interact with off-chain actors

• Strong intuition for minimizing on-chain complexity while preserving safety

• Experience working with L2s or app-specific chains

Preferred Experience

• Perp DEX experience (GMX, dYdX, HyperLIquid, Aevo, Drift, etc.)

• Experience with oracle systems (Chainlink, Pyth, custom feeds)

• Knowledge of upgrade patterns (UUPS, proxy patterns)

• Familiarity with audit processes and threat modeling

• Experience developing L1s

Stack

Solidity

MegaETH

Chainlink / Path Oracles

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