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Dragonfly · 1 month ago

Founding Smart Contract Engineer - Dragonfly Portfolio

New York, NY

Full-time, Contract

Hybrid

Senior Level

Dragonfly is a global, crypto-native venture capital and research firm with over $4B in assets under management. They are looking to connect with Smart Contract Engineers of all experience levels to build across the crypto ecosystem, focusing on production mainnet deployments and secure contract architecture.

Business DevelopmentFinanceFinancial Services

H1B Sponsor Likely

Responsibilities

A senior Solidity/EVM engineer with deep experience shipping production mainnet deployments end-to-end

Strong command of core standards and patterns: upgradeability, role-gated attestation flows, Permit/Permit2, Foundry/Hardhat, and secure contract architecture

A security-first mindset; thinking in invariants, failure modes, replay protection, upgrade policies, and audit-ready code

Exceptional taste in API and interface design, writing clear, minimal, well-structured surfaces for iOS, backend, and indexing layers to depend on

Hands-on ability to lead architecture and implementation of: non-custodial escrow vaults outcome attestations sweep/refund flows indexing/observability (logs, subgraph/indexer, reliable queries)

Ability to make pragmatic infrastructure decisions around key management, deployment pipelines, and reliability

Someone who thrives in fast iteration cycles and works closely with founders to keep the blockchain rails invisible to the end user

Qualification

SolidityEVMSecure contract architectureAPI designDeployment pipelinesFast iteration cyclesCollaboration with founders

Required

A senior Solidity/EVM engineer with deep experience shipping production mainnet deployments end-to-end

Strong command of core standards and patterns: upgradeability, role-gated attestation flows, Permit/Permit2, Foundry/Hardhat, and secure contract architecture

A security-first mindset; thinking in invariants, failure modes, replay protection, upgrade policies, and audit-ready code

Exceptional taste in API and interface design, writing clear, minimal, well-structured surfaces for iOS, backend, and indexing layers to depend on

Hands-on ability to lead architecture and implementation of: non-custodial escrow vaults outcome attestations sweep/refund flows indexing/observability (logs, subgraph/indexer, reliable queries)

Ability to make pragmatic infrastructure decisions around key management, deployment pipelines, and reliability

Someone who thrives in fast iteration cycles and works closely with founders to keep the blockchain rails invisible to the end user

Company

Dragonfly

Dragonfly Capital Partners is investing in and supporting the promising opportunities in the cryptoasset class.

Founded in 2018

San Francisco, California, USA

11-50 employees

https://www.dragonfly.xyz/

H1B Sponsorship

Dragonfly has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (1)

2023 (1)

2020 (1)