Messa

Senior Full Stack Engineer

6mo ago
LATAMSeniorRemote
Messa

Senior Full Stack Engineer

6mo ago
LATAMSeniorRemotereacttypescriptapi designai integration

Senior Full Stack Engineer to build product features with strong front-end and backend skills, integrating AI into workflows.

Responsibilities

  • Build and own end-to-end product features across the full stack.
  • Design and implement clean, high-performance user interfaces. This is where your craft shines.
  • Develop and maintain robust APIs and backend services.
  • Integrate AI agents and LLM-powered workflows into the product.
  • Participate in code reviews and help maintain a high quality bar across the codebase.
  • Think like a product builder: bring ideas, question assumptions, and help shape what we ship.

Requirements

  • Expert-level proficiency in React and modern TypeScript.
  • Basic backend experience. You're comfortable designing APIs and working with server-side systems.
  • Sharp eye for UI/UX. You build interfaces that feel polished and intuitive, not just functional.
  • Experience working with AI/LLM tools in your workflow and integrating AI capabilities into product features.
  • Product mindset. You think about the user, not just the ticket.
  • High-quality code output with minimal review overhead.
  • Comfort with ambiguity and speed in an early-stage environment.

Nice to have

  • Experience building SaaS products from early stages.
  • Python coding skills.
  • Experience building browser extensions.
  • Experience with desktop app development (Electron, Qt, etc.).
  • Familiarity with AWS or another major cloud platform.
  • Experience using Docker across development and production.
  • Experience with AI agent orchestration or agentic workflows.

Other

  • We're looking for a Senior Full Stack Engineer to help design, build, and ship core parts of our product. You'll work across the entire stack, with a strong emphasis on crafting polished, intuitive user experiences, while also building reliable backend systems and integrating AI deeply into the product.
  • We’re an early stage full of energy team. Everyone wears multiple hats, moves fast, and cares deeply about what we're building. We need someone with a product mindset: not just an engineer who executes specs, but someone who thinks about why we're building something and how users will experience it.