Senior AI Engineer
About the Company
Most tools for small businesses weren’t built for real operators.
They were built for employees in offices, not people running a business from their phone.
They’re building mobile-first business software that feels like a consumer app, runs on AI, and spreads like a creator brand.
AI-powered workflows support a large and growing base of small businesses, with more product capabilities coming next.
About the Role
They are looking for a hands-on AI Engineer to help design, build, and ship AI-powered product features using Large Language Models (LLMs).
This is not a research role. This is a hands-on role.
You will work very closely with the CTO and product team to bring AI features to production, iterate on them using real user feedback, and help define the foundations of the AI platform as it scales.
What will you do
Build and ship AI-powered product features using Large Language Models (LLMs), end to end.
Take full ownership of AI features, from problem definition to production and iteration.
Work very closely with the CTO and product team on day-to-day execution.
Make technical decisions balancing quality, cost, and latency in production AI systems.
Operate in a highly hands-on environment where shipping matters more than decks or strategy docs.
What you'll be working on
Designing and improving summarization, extraction, and automation workflows based on real user needs.
Structuring and connecting data from multiple sources to give AI systems strong context.
Context engineering: designing, curating, and maintaining high-quality context pipelines to maximize LLM reliability and minimize hallucinations.
Implementing feedback and evaluation loops to continuously measure and improve AI output quality.
Orchestrating AI agents that interact with external APIs, internal systems, and third-party tools.
Contributing to the foundations of a shared AI platform that will power multiple mobile-first products over time.
Applying AI internally to improve sales, operations, and go-to-market efficiency.
What we're looking for
Strong hands-on experience building production AI systems.
Solid experience with TypeScript.
Practical experience working with LLMs in real products.
Experience working with large, multi-source contexts.
Strong software engineering fundamentals.
Ability to work autonomously and solve problems end-to-end.
Comfort working in fast-moving, ambiguous startup environments.
Clear communication and collaboration skills.
What matters to us
You are a builder who likes to ship, iterate, and improve real product.
You are hands-on and can solve problems independently.
You care about reliability, user impact, and production quality.
Proven delivery and strong understanding of LLM features in production.
4+ years of experience designing and building high-performance systems used by millions.
You can communicate in English.
What we offer
Competitive salary (in USD or local equivalent).
Equity package.
10-day team retreats abroad every quarter.
Laptop and work setup of your choice.
Private health insurance.
A tight, ambitious team building something real.
If you want to ship real AI into production and own meaningful product outcomes, this role is worth a conversation.
- Departamento
- Engineering
- Puesto
- Sr. Software Engineer
- Ubicaciones
- Buenos Aires
- Estado remoto
- Híbrido
Acerca de Thaia
Agencia de reclutamiento boutique especializada en la búsqueda, selección y colocación de talento tecnológico de primer nivel para empresas en toda América Latina.