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Full Stack DeFi Blockchain Engineer (28 / 10 / 2025)

Bankai InfotechIndia

3 days ago

Job description

Responsibilities :

Architect and develop full-stack DeFi applications (frontend to smart contracts).
Build and optimize scalable backend systems with Node.js, TypeScript, AWS, Google Cloud.
Design secure smart contracts using Solidity and frameworks like Foundry or Hardhat.
Integrate blockchain layers using viem, ethers.js, and wagmi.
Develop modular, component-driven frontends with Next.js 14, Tailwind CSS 4, shadcn / ui, and Storybook.
Manage application state using Redux Toolkit and React Query.
Build performant APIs (REST / GraphQL / WebSockets) with Postman-based documentation.
Design and manage databases with MongoDB, Redis, IPFS.
Implement robust monitoring and observability using Datadog, Grafana, or Sentry.
Integrate on-chain data via The Graph / Subgraph indexing.
Collaborate across protocol, product, and design teams to ship production-grade systems.

Core Technologies :

Frontend : Next.js 14, TypeScript, Tailwind CSS 4, shadcn / ui, Storybook, Redux Toolkit, React Query, Jest, Cypress

Backend : Node.js, TypeScript, Redis, MongoDB, AWS (ECS, Lambda, S3, CloudFront, Secrets Manager), Docker, Kubernetes, Kafka / RabbitMQ, scalable system design

Smart Contracts : Solidity, Foundry, Hardhat, viem, ethers.js, wagmi, Forge / Anvil testing, Slither, Echidna

Cross-Chain & Data Indexing : LayerZero, Axelar, Wormhole, The Graph, Subgraph, Across, Chainlink

Observability & CI / CD : Datadog, Grafana, Sentry, GitHub Actions, Terraform

Core Technologies :

Strong understanding of DeFi primitives and protocols :

AMMs (Uniswap V2 / V3 / V4, Curve, Balancer, CoW)

Money Markets (Aave, Compound, Morpho)

Stablecoins (USDS, USDe, DAI, FRAX, USDC, USDT0)

CDP Systems (Maker, Liquity)

Liquid Staking / Restaking (Lido, EigenLayer)

Yield Aggregation (Yearn, Pendle, Beefy)

Cross-chain systems and bridge architectures

Intent based payments (UniswapX, CoW, Across)

What We Expect :

Strong fundamentals in DeFi protocol design and financial mechanisms.

Ability to adapt quickly to new technologies and environments.

Deep sense of ownership and accountability.

Experience building secure, high-performance, scalable systems.

Comfortable working in a high-paced, competitive, research-driven environment.

Ship MVPs and working prototypes using AI tools

Spin-up fast research on existing open-source codebase and repurpose

What We Offer :

Industry-standard compensation

High-growth environment with autonomy and ownership.

Collaboration with top-tier DeFi engineers and researchers.

Opportunities to build in production-level environments similar to Uniswap, Aave, and Lido.

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Blockchain Engineer • India

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