Senior AI Fullstack Engineer - SD, Remote: Colombia - Costa Rica, Fulltime

• Strong Full Stack development experience with JavaScript and TypeScript. Exposure to or experience with Go is a plus. Senior-level software engineering experience. You can design a system, review someone else's code, and debug something you didn't write
• Architectural judgment. You think in systems rather than tickets, and you can explain why you chose one approach over another to both engineers and non-engineers
• Experience assessing risk in environments handling PII or financial data, and a working sense of where the real exposure sits versus where it only looks scary
• Track record building highly available, scalable, performant systems, and the instincts to know when that matters and when it's premature
• Ships production code with AI coding tools such as Cursor or Claude Code as a normal part of the workflow, not just experimentation
• Has built and shipped LLM-backed features to real users, such as agents or RAG pipelines, including the unglamorous parts
• Practical judgment about where AI helps and where it doesn't, grounded in things you've actually built
• Comfortable owning deploys end-to-end on a PaaS like Fly.io or Render, and able to find your way around AWS or GCP when a project needs managed services
• Builds automation and data workflows to support the above
• Moves fast under real deadlines and works well with ambiguous requirements
• Motivated by building new features rather than supporting existing systems
• AI-assisted code review workflows
• Evals, fine-tuning, or model training experience

Originally posted on Himalayas