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Software Engineer (AI)

AI is the product. Build agents and models that run in production, and own the work end to end next to the CTO.

About the role

Join a small engineering team where AI is the product, not a feature. You will work side by side with the CTO and own work end to end, from understanding the user's problem to shipping the solution and seeing whether it created value.

What you will do

• Build and ship AI-powered features and agents that run in production, used by real customers every day.
• Train, fine-tune and evaluate models, and decide when a model, an agent or plain code is the right answer.
• Own product development end to end, with no handoffs: problem, design, implementation, release and measurement.
• Work with mobile engineers and the CTO on the foundations and the future of the AI systems.

What we are looking for

• Hands-on experience building agents and training or fine-tuning models, beyond calling an API or using AI-assisted coding.
• At least one AI product you took from idea to production, and you can explain what you decided and what result it had.
• 4+ years building high-performance systems at product companies. The language is not a filter; our stack includes Node, Java, Go, Kotlin and Python.
• A startup mindset: you move fast, take ownership, thrive in ambiguity and ask smart questions about why we build things.
• Clear, direct communication in English.

What we offer

Hybrid in Buenos Aires. Competitive salary in USD or local equivalent, equity, team retreats and a laptop and setup of your choice.

We run this search for one of our clients and share the company name once you are in process.