Empathic AI customer service that's almost human.
Senior Fullstack Engineer
Location
Argentina
Posted
5 days ago
Salary
0
Seniority
Senior
Job Description
Senior Fullstack Engineer
Siena AI
• Own features and systems across the full stack, frontend, backend, and infrastructure, from problem definition through production. • Partner with product to break down ambiguous scope and ship in iterative, high-impact releases. • Make real architectural and design decisions in your area, and explain the reasoning so the team can build on it. • Take cutting-edge language models into enterprise customer workflows, where reliability and safety actually matter. • Solve hard engineering problems: API performance, microservices, scaling across channels and brands. • Maintain and improve our AWS infrastructure with a DevOps mindset. • Raise the bar around you. Share what you know, review thoughtfully, and help teammates level up.
Job Requirements
- 5+ years of software engineering, with real ownership of systems you have shipped and run in production.
- Strong full-stack engineer in our core stack: Node.js, React, TypeScript, Express.
- Solid with AWS (Fargate, Lambda, EC2, SQS) and with PostgreSQL and Redis.
- Comfortable with CI/CD pipelines (CodePipeline, GitHub Actions, or similar).
- Experienced with microservices and scalable systems.
- Product-focused. You think past the code to customer outcomes and business impact.
- You have shipped LLM-powered features to production. This is a must, not a bonus. You know what breaks when models meet real users.
- High-ownership and direct. You take initiative, fix problems without waiting to be told, and say openly when something is not working.
Benefits
- Real ownership. You will own problems, not tasks, with the autonomy to solve them your way and the trust to do it without a manager in your inbox.
- Work that ships and matters. What you build reaches real consumer brands fast.
- A category we are creating. The Agent of Record is new ground, with unsolved problems and cutting-edge models, not a crowded field to compete in.
- A team that respects your judgment. Globally distributed, async-first, low bureaucracy. We hire adults and treat you like one.
- Great salary plus equity or stock grants. Own a piece of what you build.
- Learning budget. If you are growing, so are we.
- AI-fluency by default. Few places will push your work with production AI further or faster.
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