Staff Full Stack Engineer

Role Description

Lead the design and implementation of full-stack features across our B2B platform, working directly with product and operations leadership.

• Drive the convergence of multiple legacy stacks into the core CookUnity codebase, making key architectural decisions along the way.
• Automate and simplify operationally complex processes — from smart fridge inventory management to healthcare meal delivery workflows.
• Maintain and scale our AWS infrastructure to support rapid vertical growth.
• Mentor engineers across the team and contribute to raising the technical bar.
• Be hands-on and build products used by thousands of corporate customers from day one.

Qualifications

• Proven experience designing and building cloud-native architectures: backend services, APIs, and full-stack web applications.
• Strong proficiency with NodeJS/NestJS, ReactJS, AWS, and MySQL (or equivalent relational databases).
• Experience with Java in a production environment.
• Solid understanding of distributed systems, service-oriented architecture, and API design.
• Experience with automated testing and CI/CD pipelines.
• Advanced English proficiency (written and spoken).

Requirements

• Experience building AI-powered product features (e.g., smart recommendations, automated ordering, anomaly detection).
• Ability to evaluate and introduce new AI tools or frameworks to the team, establishing best practices and adoption playbooks.
• Prior work integrating LLM-based workflows, automation pipelines, or agentic tooling into production systems.

Benefits

• Get paid in USD.
• Work remotely: design the life that you want.
• ⛱ Enjoy 15 days of vacation each year from the start date.
• 16 fully paid Argentinean holidays.
• Healthcare Benefit: Monthly stipend to use in your preferred healthcare provider.
• ️ 5-year Sabbatical: After 5 years with CookUnity, you get a 4-week paid sabbatical.
• Paid family leave.
• Compassionate Leave: 3-5 days each time the need arises.
• ‍♀️ Flexible benefits, your way: a prepaid card you can use on wellness, learning, food, and more.
• AI-forward workplace: enterprise access to ChatGPT and Claude to help you work smarter and grow faster.
• ‍ Personalized English coach.