AI Web3 Backend Engineer (Web3)

TL;DR

AI Web3 Backend Engineer (AI/Web3): Building the Traia.io AI Agent runtime and autonomous agent infrastructure with an accent on multi-agent orchestration and secure execution environments. Focus on designing scalable APIs, integrating MCP servers, and creating sandboxed runtimes for AI agents.

Location: Remote in Kiev, Lisbon, Warsaw, Barcelona, or Belgrade

Company

A pioneering Web3 and blockchain development company since 2017, creating decentralized ecosystems and innovative blockchain-based products.

What you will do

• Architect and build the backend infrastructure powering the Traia.io AI Agent runtime.
• Develop and maintain multi-agent orchestration systems and autonomous workflows.
• Build infrastructure for agent runtimes, tool execution, memory systems, and task coordination.
• Integrate MCP servers, tools, skills, and external execution environments.
• Design secure deployment architectures for AI agents, including sandboxing and containerized runtimes.
• Build scalable APIs, queues, event-driven systems, and real-time communication layers.

Requirements

• Strong backend engineering experience with Python.
• Experience building AI agents, autonomous workflows, orchestration systems, or multi-agent architectures.
• Solid understanding of distributed systems, Docker, and Kubernetes.
• Experience with MCP servers, tool calling systems, or RAG pipelines.
• Deep knowledge of security, isolation, scalability, and performance tradeoffs in autonomous systems.
• Experience designing backend systems for task execution or event-driven architectures.

Nice to have

• Web3 development experience including blockchain integrations, wallets, smart contracts, or DeFi protocols.
• Experience with on-chain trading systems or autonomous execution agents.
• Familiarity with Safe wallets, EIP-712 signing, or account abstraction.
• Experience deploying isolated agent environments or sandboxed runtimes.
• Understanding of Kafka, NATS, or large-scale real-time infrastructure.