Lead AI Engineer – LLM, Agents
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Job Description
Lead AI Engineer building reliable LLM agents and backend systems for Trust Wallet, a global non-custodial cryptocurrency wallet. Owning evaluation, production reliability, and product delivery.
Responsibilities:
- Design, build, and maintain multi-turn conversation systems
- Implement context management, tool calling, knowledge retrieval (RAG), state management, and human handoff
- Define success criteria with Product, Design, and QA leads
- Convert production failures into evaluation samples and regression tests
- Measure the impact and side effects of changes before and after release
- Diagnose failures across model judgment, knowledge gaps, tool responses, backend stability, and conflicting rules
- Handle timeouts, retries, graceful degradation, async jobs, and third-party dependency failures
- Ensure issues are traceable through logs, changes are versioned, and failures have recovery paths
- Advise on requirements regarding feasibility, cost, risk, and alternatives
- Propose improved approaches and phased, shippable deliverables
- Communicate progress, blockers, ETAs, and checkpoints proactively
- Track real-world impact after launch and provide documentation and handover materials
Requirements:
- Production LLM/Agent experience at scale: built LLM or Agent features used by 10,000+ active users and maintained and improved them after launch
- Strong backend engineering fundamentals, including production code, APIs, data flows, and incident troubleshooting
- Experience building evaluation sets, regression suites, and production monitoring
- Ability to verify that improvements are real rather than random fluctuation
- Ownership of decisions, early risk identification, and production verification
- Preferably 1 year of experience in a crypto, DeFi, or Web3 company; wallet, exchange, L1/L2 protocol, or DeFi platform experience strongly preferred
- Right to work in the country where based
- No visa sponsorship available
Benefits:
- Excellent learning and career development opportunities
- Work alongside diverse, world-class talent
- Fast-paced, challenging and unique projects
- Truly global organization with international teams and a flat organizational structure
- Fully remote work with flexible working hours
- Competitive salary and benefits
- Equal opportunity employer
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