We are seeking a Full Stack AI Engineer to join a fast-growing SaaS company building AI-native products. The role will accelerate AI feature delivery, contribute to agentic workflow architecture, and support a company-wide rebrand implementation.

Responsibilities
- Design and ship AI-powered features end-to-end, with emphasis on backend and LLM integration layers.
- Build and maintain pipelines for AI agents, RAG workflows, and API integrations with LLM providers (OpenAI, Anthropic, etc.).
- Contribute to refactoring and modernizing legacy systems with AI readiness in mind.
- Collaborate with product, design, and research teams in a distributed environment.
- Implement design updates as part of a rebranding initiative (typography, assets, UI components).

Must-Have Skills
- 8+ years in engineering, with proven SaaS/B2B experience.
- Strong in TypeScript, Node.js, React, PostgreSQL.
- Hands-on experience integrating LLMs into production systems (prompt engineering, tool use, context management).
- Familiarity with agentic frameworks (LangChain, LlamaIndex, or similar)



or building custom agent pipelines.
- Exposure to system design and scaling at enterprise level.
- Ability to ship high-quality features fast.
- Experience with vector databases (pgvector, Pinecone, Weaviate) is a plus.
- Experience migrating legacy systems or supporting multi-region infra is a plus.

Soft Skills
- Agentic mindset: builds autonomous, outcome-driven solutions — not just features.
- Stays current with the fast-moving AI tooling landscape; opinionated about what to use and why.
- Excellent cross-team communication in distributed environments.

What we offer:
- Competitive salary and bonuses
- Versátil work hours
- Remote job
- Professional development opportunities
- Vibrant workplace culture

Why working at Diffco?
- Great experience and opportunity:
You will work on the fast-forward projects in Silicon Valley utilizing the latest technologies, methodologies, frameworks and approaches wi

📌 Full Stack AI Engineer (Buenos Aires)
🏢 Diffco
📍 Buenos Aires