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Senior Backend Engineer building scalable DeFi APIs and blockchain integrations for a fintech startup, using Node.js, TypeScript, MongoDB, Redis, and Stellar network tools.
Build and maintain backend infrastructure that connects products to EVM networks and smart contracts, handling RPC communication, event indexing, and transaction monitoring.
Build and scale the blockchain backend for a play-to-earn sports gaming platform, writing smart contracts, wallets, APIs, and infrastructure in Go/Solidity to power tokenized rewards and secure transactions.
Builds and maintains React/Next.js frontends with TypeScript, integrating blockchain data via smart contracts and subgraphs.
Build off-chain infrastructure for an intent-powered smart wallet system that abstracts blockchain complexity, using Rust/TypeScript and interacting with Solidity smart contracts.
Lead a team building Python-based trading infrastructure for a DeFi desk, integrating smart contracts and optimizing performance with Rust where needed.
Lead developer relations for Pharos Network: create tutorials, host hackathons, and advocate at conferences to grow the Web3 developer community and improve tooling.
Develop and maintain smart contracts for lending and savings products on a next-gen core banking platform using Thought Machine Vault Core, focusing on financial logic and integration.
Senior Security Engineer at Ondo Finance to drive secure product development, perform threat modeling, secure code reviews, and manage AppSec tooling for a fintech platform integrating tokenized real-world assets with blockchain.
Owns B2B financial apps on the Canton blockchain, gathering institutional pain points and translating them into scalable solutions to drive network adoption.
Lead CX Solution Manager Location: New York City Department: Solutions Design About Digital Asset & the Canton Network Digital Asset builds the technologies that are reshaping the foundations of financial markets.…
Own the product roadmap for HashSphere’s tokenization and enterprise features, translating Tier-1 financial-institution needs into features that engineering builds and sales closes.
Builds and maintains the OP Stack, a Rust-based open-source blockchain protocol powering Ethereum L2 networks, focusing on core client infrastructure and protocol upgrades.
Build and own end-to-end features in a .NET 10 backend and React dashboards, integrating payments/KYC and Web3 services while leveraging AI tools for faster development.
About the role HelixWager is at the forefront of innovation, merging AI technology and blockchain to revolutionize the gaming industry. We are looking for a detail-oriented Project Manager with a robust background in…
Own the product roadmap for Hacken’s digital asset risk intelligence platform, defining features for due diligence, continuous monitoring, and explainable risk scoring for banks and exchanges.
Lead enterprise data governance and strategy for a global music company, ensuring accurate, compliant data across rights, royalties, fan engagement, and AI initiatives.
Design and build real-time and batch data pipelines using Apache Flink to power analytics and ML features for a global crypto exchange.
Build and own the algorithm platform and search system powering OKX Wallet and DEX, integrating AI/LLM and on-chain data to improve relevance, ranking, and trading intelligence.
Lead the design and lifecycle of Web3 infrastructure products like data services, market data systems, and AI trading tools for a crypto exchange and wallet.
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