Founding Software Engineer (Python + JS)

We're helping our client to hire a Founding Engineer in LATAM.

This is not a join a team role. This is a build-the-company role.

About our client

We're building infrastructure at the frontier of AI: systems that power agentic workflows, hard-reasoning datasets, and large-scale experimentation for some of the most advanced AI teams in the world.

No layers.

No legacy code.

No waiting your turn.

If you want real ownership, real stakes, and real technical problems — keep reading.

What youll actually be doing

As a Founding Software Engineer, you'll work directly with the founders and have meaningful impact from day one. You won't just ship features — you'll shape systems, standards, and culture.

You will:

• Build and scale complex data-capture workflows Across web (Next.js) and desktop (Python), supporting agentic and high-reasoning datasets.
• Design high-throughput data pipelines. Architect systems that handle heavy load, stay reliable under pressure, and evolve quickly.
• Ship fast with tight feedback loops. Small team, high trust, zero bureaucracy.
• Set engineering standards early. You're not inheriting best practices — youre defining them.
• Lay the foundation for a LATAM engineering hub. This role is a key step in building a world-class LATAM engineering presence.

Youre winning in this role if you:

• Ship quickly without breaking what matters

• Own systems end-to-end and improve them continuously

• Think in systems, not tickets

• Communicate clearly, push back when needed, and move with urgency

• Leave the codebase, infrastructure, and team stronger than you found them

Who were looking for

• 4–10 years of experience as a full-stack engineer

• Strong focus on Python + JavaScript / TypeScript

• Full-stack engineer with strong frontend skills, comfortable owning backend and infrastructure decisions

• Experience at a reputable, fast-growing startup

• Proven ability to build and scale complex data workflows

• Comfortable operating in ambiguity with high expectations

Hard skills we care about

• Next.js, React, Node.js

• Python (non-negotiable)

• AWS or GCP (serverless experience is a big plus)

• Kafka (or RabbitMQ), Redis, Elasticsearch

• Kubernetes experience is a strong plus

Soft skills that matter here

• Strong English and clear communication

• Ownership mindset — you see problems and fix them

• Low ego, high standards

• Comfortable working US hours from LATAM

Who this is not for

Lets be explicit:

• Engineers who need heavy process and structure

• People looking for narrow scope or safety rails

This role is for builders who want to be in the arena.

Why this role is special

• Frontier AI problems — real infrastructure, real complexity

• Founding-level impact — your decisions matter immediately

• Talent-dense environment with very high technical standards

• Remote-first, with intentional LATAM expansion

• USD compensation: 70k-85k + equity