Engineering Remote · Argentina Paid in USD Full-time

Senior Software Engineer

Someone has to decide how the system is shaped before anyone can build in it. You'd own the architecture behind AI dealmaking: real-time signal processing, agent systems that reason about opportunities, and a platform that grows without the rewrite everyone saw coming.

The architecture, and the projects built on it

Experience

5–7+ years backend with system design ownership

Compensation

USD, discussed on call 1

Process

Node.js / TypeScript Python Cloud architecture & infrastructure (AWS, Azure or GCP) SST / Terraform AI frameworks: LangGraph, LangChain, CrewAI, SageMaker AI agents: AI SDK, Mastra, Hermes Agent, Google ADK LLM providers & gateways: OpenAI / Anthropic SDK, OpenRouter, Vercel AI Gateway Snowflake Next.js / React Nice: streaming infrastructure, data platforms at scale

Fit check

Tick what's true. We'll tell you straight. Nothing is sent anywhere. This is for you, not us. Six statements, honest answer only. Still hands on keyboard. Intelligence APIs, agent systems,



the parts of the platform nobody else should have to touch first. Most of it is deciding what the right thing is. The code is what a good thought process leaves behind. Deciding how it should be shaped, writing the trade-off down, and being the one accountable when it is wrong.

Leading the project

Product, business, and the funds themselves. You align them on what a project is for, set the cadence, and own the expectations. You shape the roadmap in those rooms rather than receive it afterwards.

Multiplying

Review, pairing, mentoring. Review here means making sure what we ship actually works, not only that the diff reads well.

Three things you'd ship in your first year

01 A platform that survives its own success

Prototype to production without the rewrite. You pick the boundaries and live inside them.

02 An agent system that reasons, not just summarises

Memos, signals and deal data in; a judgement a

📌 Senior Software Engineer (Buenos Aires)
🏢 Loop3
📍 Buenos Aires