Senior Full Stack Engineer
Messa, Inc. · Remote · Argentina ·
COMPENSATION
€•• – ••k
Listed on the employer's job board (Ashby)
- Senior level role
- React + TypeScript
- AI/LLM integration
- Product mindset required
- Early-stage startup
Join an energetic early-stage team as a Senior Full Stack Engineer to design and ship core product components. You will work across the entire stack, crafting polished user interfaces while building reliable backend systems and deeply integrating AI agents into the workflow.
What you'll do
- Own end-to-end product features across the full stack
- Design and implement high-performance, polished user interfaces
- Develop and maintain robust APIs and backend services
- Integrate AI agents and LLM-powered workflows into the product
- Participate in code reviews to maintain high quality standards
- Shape product direction by questioning assumptions and bringing ideas
What you'll need
- Expert-level proficiency in React and modern TypeScript
- Comfortable designing APIs and working with server-side systems
- Sharp eye for UI/UX to build intuitive interfaces
- Experience integrating AI capabilities into product features
- Product mindset focused on user experience over just tickets
- Ability to produce high-quality code with minimal review overhead
- Comfortable 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
- Desktop app development experience (Electron, Qt)
- Familiarity with AWS or other major cloud platforms
- Experience using Docker in development and production
- Experience with AI agent orchestration or agentic workflows
Stack
- React
- TypeScript
- Python
- Electron
- Qt
- AWS
- Docker
- LLMs