Web3 Infrastructure Engineer
BNB Chain is a community-led blockchain ecosystem powered by BNB, composed of BNB Smart Chain (L1), opBNB (L2) and BNB Greenfield (storage). In 2024, Beacon Chain functions fused into BSC.
Maintainer signals as of 8/13/2026
Funding history
Projects
About BNB Chain
BNB Chain is an open, permissionless blockchain ecosystem for building Web3 apps. It includes BNB Smart Chain (EVM L1), opBNB (L2), and BNB Greenfield for decentralized storage, all powered by the BNB token. The network rebranded from Binance Chain/Smart Chain to BNB Chain in 2022, and in 2024 migrated Beacon Chain staking/governance to BSC as part of the BNB Chain Fusion.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will design and build full-stack applications and SDKs for blockchain middleware and infrastructure, integrating AI agents, LLM workflows, retrieval-augmented generation, multi-agent collaboration, on-chain data processing, cross-chain protocols, smart contracts, and blockchain tooling. You will develop scalable backend services, user-friendly React interfaces, smart contract integrations, engineering standards, AI-assisted delivery practices, and technical improvements across AI and blockchain products.
Requirements
- Fluency in at least one frontend framework and one backend language such as Python or Node.js
- Experience designing RESTful or GraphQL APIs and tuning performance
- Experience writing unit, integration, or end-to-end tests
- Deep understanding of LLM capabilities, prompt engineering, and inference cost and latency trade-offs
- Experience taking AI features from prototype to production with observability, fault tolerance, and evaluation pipelines
- Experience deploying and debugging smart contracts on mainnet or testnet
- Understanding of on-chain data structures and common smart contract security vulnerabilities
- Experience independently shipping complete AI-driven applications or SDKs
- Experience contributing to engineering standards, technical documentation, or AI-assisted development guidelines
Responsibilities
- Design and implement full-stack applications and SDKs for blockchain middleware and infrastructure
- Integrate AI agent capabilities into on-chain data processing, cross-chain protocols, and smart contract interactions
- Build integration layers between AI agents and blockchain tooling
- Develop highly available and scalable backend services using Python, Node.js, or equivalent frameworks
- Deliver user-friendly interfaces with modern frontend frameworks such as React
- Develop smart contracts and integrate them with major blockchain networks
- Define engineering standards and reusable architecture patterns
- Apply specification engineering and AI-assisted delivery practices
- Produce technical insights and drive continuous product improvement
