About the company
Trust Wallet is the leading non-custodial cryptocurrency wallet, trusted by over 200 million people worldwide to securely manage and grow their digital assets. Our vision is to give individuals the freedom to own their assets, confidently participate in the future economy, and access opportunities that enhance their lives. Our mission is to be a trusted personal companion — helping users safely navigate Web3, the on-chain economy, and the emerging AI-powered future. With support for over 10 million assets across 100+ blockchains, Trust Wallet offers a seamless, multi-chain experience backed by industry-leading self-custody technology, a vibrant community, and a growing ecosystem of partners.
ABOUT THE ROLE
We’re looking for a Lead AI Engineer to own the backend and Agent systems behind our LLM-powered products. The role is end to end: you’ll build the Agent workflows, define how we measure quality, keep them reliable in production, and shape where the product goes next.
This role is for someone who has shipped LLM features to real users, stayed with them after launch,



and can prove with data that their changes made things better.
JOB SCOPE:
Build and own AI backend and Agent workflows
– Design, build, and maintain multi-turn conversation systems, including context management, tool calling, knowledge retrieval (RAG), state management, and human handoff.
Drive evaluation and continuous improvement
– Define success criteria with Product, Design, and QA leads.
– Turn production failures into evaluation samples and regression tests.
– Measure the impact and side effects of every change before and after release.
Diagnose problems across the stack
– Isolate the root cause of failures: model judgment, knowledge gaps, abnormal tool responses, backend instability, or conflicting rules.
– Apply the right fix for each cause rather than defaulting to prompt tweaks.
Own production reliability
– Handle timeouts, retries, graceful degradation, async jobs, and thir

📌 Lead AI Engineer (España)
🏢 Trust Wallet
📍 España