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Build the Web2 frontend from scratch using React/Next.js and TypeScript, then integrate Web3 features for Pet360’s blockchain-based pet ecosystem in Brazil.
Lead a team to prototype and evaluate emerging fintech tech like AI, blockchain, and cloud systems, then translate findings into actionable enterprise solutions and prototypes.
We're looking for a Senior Backend Engineer to join our backend team at Zerion. This team builds and evolves the backend systems at the core of our products and customer-facing solutions. In this role, you'll…
About Chainlink Chainlink is the industry-standard oracle platform bringing the capital markets onchain and powering the majority of decentralized finance (DeFi). The Chainlink stack provides the essential data,…
Build and maintain CI/CD pipelines, Kubernetes clusters, and observability stacks for a high-performance crypto exchange built on Monad.
Leads backend architecture for a new securities investment data platform, designing APIs, data pipelines, and strategy engines in a B2B outsourcing role.
Senior blockchain developer building Web3 apps with Ethereum/Solana/Solidity smart contracts and modern JS/TS stacks for fast-paced startups.
Build and maintain high-volume blockchain transaction infrastructure, wallet systems, and cross-chain integrations for a regulated crypto payments platform.
You will design and improve high-volume transaction broadcasting pipelines, manage transaction lifecycles, recover stuck transactions, and contribute to wallet infrastructure and automation. You will build cross-chain…
Secure a high-load financial platform processing crypto and fiat payments by designing cloud and Kubernetes security controls, implementing DevSecOps pipelines, and enforcing cryptographic best practices.
Develop and test smart contracts for a banking platform using Thought Machine Vault, focusing on business logic and core banking features.
Designs and reviews secure architectures for AI, cloud, blockchain and emerging tech at a major Asian bank, ensuring security-by-design across projects and embedding controls into SDLC.
Build and secure Ethereum smart contracts, optimize blockchain services, and maintain CI/CD pipelines for a fast-growing Canadian crypto exchange.
Design, build, and scale global payment rails covering traditional and crypto/stablecoin infrastructures, collaborating cross-functionally to deliver secure, seamless experiences.
Build and scale a DeFi protocol’s full-stack (React/Node.js/Go) while integrating AI features like predictive risk models and smart automation for yield strategies.
Lead engineer building secure, scalable blockchain and microservices solutions in Java/Python for JPMorgan’s payments tech stack, including smart contracts and cloud infrastructure.
Design and execute API/back-end test plans for a crypto-fintech platform, using Postman/Swagger and automated scripts in JavaScript/Go to validate services and shorten release cycles.
Builds and integrates Web3 components for Citi’s digital asset platform using Java, Solidity, and blockchain protocols like Ethereum and Hyperledger Besu.
Build and integrate Web3 components for Citi’s digital asset platform, including smart contracts, blockchain protocol connectors, and on-chain event listeners using Java/Spring and Web3 libraries.
Build and secure Citi’s Digital Assets Platform in Java, integrating HSMs and MPC protocols to protect billions in institutional crypto infrastructure.
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