Fullstack Engineer (Backend-focused) – Remote (Buenos Aires, Argentina)

We’re looking for a dynamic Fullstack Engineer with a strong backend focus to join a growing, fast-paced team. This role is ideal for someone who enjoys building end-to-end features, working across the stack, and is excited about leveraging AI in real-world applications.

What You’ll Do

Build and ship production-ready features across backend and frontend
Develop and maintain scalable APIs and services (Node.js or Python)
Contribute to frontend development using React and modern frameworks
Work closely with product and engineering teams to deliver high-impact solutions
Integrate AI tools and APIs into applications and workflows
Debug and resolve issues across the stack in a production environment

What We’re Looking For

3-6 years of experience in full-stack development
Strong backend skills with Node.js and/or Python
Experience with React or similar frontend frameworks (Vue, Angular, etc.)
Solid understanding of APIs, databases, and system design
Exposure to AI tools, APIs, or strong interest in working with AI
Proactive, adaptable, and comfortable working in fast-moving environments
Good communication skills in English

Nice to Have

Experience working with AI/LLM APIs or building AI-powered features
Familiarity with cloud platforms (AWS, GCP, or similar)
Experience in startup or high-growth environments

About RYZ Labs:

RYZ Labs is a startup studio founded in 2021 by two lifelong entrepreneurs. The founders of RYZ have worked at some of the world's largest tech companies and some of the most iconic consumer brands. They have lived and worked in Argentina for many years and have decades of experience in Latam. What brought them together was their passion for the early phases of company creation and the idea of attracting the brightest talents in order to build industry-defining companies in a post-pandemic world.

Our teams are remote and distributed throughout the US and Latam. They use the latest cutting-edge cloud computing technologies to create scalable and resilient applications. We aim to provide diverse product solutions for different industries and plan to build a large number of startups in the upcoming years.

At RYZ, you will find yourself working with autonomy and efficiency, owning every step of your development. We provide an environment of opportunities, learning, growth, expansion, and challenging projects. You will deepen your experience while sharing and learning from a team of great professionals and specialists.

Our values and what to expect:

- Customer First Mentality - Every decision we make should be made through the lens of the customer.

- Bias for Action - urgency is critical, expect that the timeline to get something done is accelerated.

- Ownership - Step up if you see an opportunity to help, even if it's not your core responsibility.

- Humility and Respect - Be willing to learn, be vulnerable, and treat everyone who interacts with RYZ with respect.

- Frugality - being frugal and cost-conscious helps us do more with less

- Deliver Impact - get things done most efficiently.

- Raise our Standards - always be looking to improve our processes, our team, and our expectations. The status quo is not good enough and never should be.

Full stack Engineer

What You’ll Do

What We’re Looking For

Nice to Have

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