Remote AI Research Engineer — Agentic LLMs & Tooling

Fullstack; Tandil; Remote; ARS 216,357,000 - 324,535,000; Full time

Job summary

Tether is seeking an AI Research Engineer for a 100% remote worldwide role. You will drive post-training innovations for agentic models, enabling them to reason, plan and autonomously invoke external tools on edge devices (phones and similar hardware).

You will work on a spectrum of systems—from lean, resource-efficient agents to multi-modal architectures, all optimized for tool-augmented decision making. Your responsibilities include curating agentic training data, strengthening baseline

Qualifications

• Deep expertise in large language model architectures.
• Experience with post-training for agentic workflows.
• Strong ability to design tool-use, function calling, and reinforcement learning from feedback.

Responsibilities

• Curating agentic training data (e.g., trajectories of tool use, reasoning chains, environment interactions).
• Strengthening baseline performance and identifying bottlenecks in post-training for tool augmented agents to achieve SOTA model quality.
• Building models that can act, use tools, and adapt, pushing the limits of agentic AI.

Job description

Tether is seeking an AI Research Engineer for a 100% remote worldwide role. You will drive post-training innovations for agentic models, enabling them to reason, plan and autonomously invoke external tools on edge devices (phones and similar hardware).

You will work on a spectrum of systems—from lean, resource-efficient agents to multi-modal architectures, all optimized for tool-augmented decision making. Your responsibilities include curating agentic training data, strengthening baseline