DeFiGuard is a real-time risk monitoring and threat detection platform for DeFi protocols. We help users and protocol teams spot exploits, flash loan attacks, oracle manipulation, and suspicious on-chain activity before funds are lost. Our stack spans a React dashboard, Node.js services, and smart contracts across multiple EVM chains.
We're looking for a full-stack engineer who can move fluidly between polished frontend work and the backend infrastructure that watches the chain in real time.
What You'll Do
- Build the DeFiGuard dashboard in React/Next.js — real-time alerts, risk scores, protocol health views, and transaction forensics
- Develop Node.js services that ingest and index on-chain data across Ethereum, Arbitrum, Base, and Optimism
- Integrate wallet connections and transaction signing (WalletConnect, MetaMask, Coinbase Wallet)
- Write and audit Solidity contracts for our on-chain guardrails and alerting hooks
- Build real-time pipelines (WebSockets, event streams) that surface threats within seconds of detection
- Work with our security researchers to translate detection logic into production code
- Own features end-to-end — from spec to deploy to monitoring
Required Skills
- Frontend: React, Next.js, TypeScript, React Query, Tailwind
- Backend: Node.js, NestJS or Express, PostgreSQL, Redis, REST & GraphQL
- Blockchain: Solidity, Hardhat or Foundry, ethers.js or viem, deep EVM fundamentals
- Web3 UX: Wallet connection flows, transaction lifecycle, chain switching, gas estimation
- Understanding of common DeFi attack vectors (reentrancy, flash loans, oracle manipulation, MEV)
- Git, CI/CD, Docker, AWS or GCP
Nice to Have
- Experience with The Graph, subgraphs, or custom indexers
- Familiarity with Tenderly, Alchemy, QuickNode, or similar infra
- Rust or Go
- Prior work at a DeFi protocol, security firm, or on-chain analytics company
- Open-source contributions in the Web3 security space
What We Offer
- Competitive salary + token/equity package
- Fully remote with flexible hours
- Budget for conferences, courses, and hardware
- Small senior team — your work ships fast and matters
To Apply
Send your resume, GitHub, and a short note about a Web3 or security project you've shipped (links to live apps or contracts welcome).
Skills Required
- React, Next.js, TypeScript, React Query, and Tailwind
- Node.js, NestJS or Express, PostgreSQL, Redis, REST, and GraphQL
- Solidity, Hardhat or Foundry, ethers.js or viem, and deep EVM fundamentals
- Experience with wallet connection flows, transaction lifecycle, chain switching, and gas estimation
- Understanding of DeFi attack vectors including reentrancy, flash loans, oracle manipulation, and MEV
- Git, CI/CD, Docker, and AWS or GCP
- Experience with The Graph, subgraphs, or custom indexers
- Familiarity with Tenderly, Alchemy, QuickNode, or similar infrastructure
- Rust or Go experience
- Prior work at a DeFi protocol, security firm, or on-chain analytics company
- Open-source contributions in the Web3 security space
Squadsy Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Squadsy and has not been reviewed or approved by Squadsy.
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Equity Value & Accessibility — Foundational roles are described as featuring equity-heavy compensation typical of early-stage tech ventures, suggesting potential upside for early joiners. Feedback suggests equity is a core element of offers rather than an ancillary perk.
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Wellbeing & Lifestyle Benefits — The company is described as fully remote within the United States, indicating flexibility that can support work-life balance. Feedback suggests remote-first operations offer location flexibility for employees.
Squadsy Insights
What We Do
Squadsy is a blockchain technology company focused on digital asset trading, staking, and advisory. We help individuals, teams, and businesses navigate a rapidly evolving ecosystem with a clear, risk-aware perspective. From market execution and validator participation to protocol evaluation and integration, we connect your objectives with technology that serves a purpose. Our approach is simple: clarity over complexity, risk before reward, and progress with purpose.
Why Work With Us
Squadsy is a blockchain technology company built for a world that doesn't stand still. We work across digital asset trading, staking, and blockchain advisory, helping individuals, teams, and businesses navigate a rapidly evolving ecosystem with clarity.
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