Senior Full Stack Engineer – AI Applications

About the role

Rootstack is seeking a Senior AI / Full Stack Engineer to turn AI prototypes into production‑ready applications for enterprise clients in energy, oil & gas, procurement and supply chain.

Key responsibilities

• Develop and enhance AI‑powered applications using Python and TypeScript.
• Build full‑stack solutions with React and Next.js.
• Integrate Large Language Models, Generative AI and AI agents into product features.
• Refactor and improve existing codebases and prototypes.
• Design scalable, reliable and maintainable software architectures.
• Implement testing strategies, error handling and production‑readiness best practices.
• Optimize token usage, latency, performance and model costs.
• Work with AWS services such as Bedrock, S3 and RDS (PostgreSQL).
• Develop processes to extract and process information from PDF, Word and Excel documents.
• Collaborate directly with the project founder and guide technical decisions throughout the development lifecycle.

Required profile

• Strong experience with Python and TypeScript.
• Hands‑on experience with React and Next.js.
• Experience building applications using LLMs, Generative AI and AI agents.
• Familiarity with Claude / Anthropic or equivalent large language models.
• Knowledge of AWS and relational databases, especially PostgreSQL.
• Experience processing PDF, Word and Excel documents.
• Advanced English proficiency, both written and spoken.
• Ability to work independently, take technical ownership and communicate with stakeholders.
• Availability to work during U.S. Central Time business hours.

Required skills

• Python
• TypeScript
• React
• Next.js
• AWS (Bedrock, S3, RDS)
• PostgreSQL
• Large Language Models / Generative AI
• PDF, Word, Excel document processing