Lead Backend Engineer
Core
Architect and build real-time backend systems and APIs for a Web3 fintech platform bridging traditional finance and decentralized systems.
Role type
Lead Backend Engineer (Web3/DeFi)
Builds
Real-time APIs, microservices, and streaming pipelines for crypto trading, DeFi analytics, and digital asset tracking.
Domain
Fintech / Web3 / Blockchain
Deliverable
production ML models | product features | infrastructure
Required skills
TypeScript, Node.js, NestJS, gRPC, Kafka, WebSockets, time-series data optimization, cloud-native infrastructure, security engineering
Preferred skills
Blockchain fundamentals, smart contracts, Web3 APIs (Ethers.js, Web3.js), high-throughput platform experience
Technologies
NestJS, gRPC, Protobuf, Kafka, Bun, QuestDB, ClickHouse, APISIX, Docker, Kubernetes
Responsibilities
Architect and develop real-time APIs and backend systems; Build scalable microservices; Manage streaming pipelines; Implement WebSocket-based services; Store and optimize time-series data; Secure and orchestrate APIs; Contribute to infrastructure scalability and resilience.
Seniority
Senior, hands-on IC with architectural influence