1073- Mid-level software engineer

GoFasti is a Talent-as-a-Service company that connects top talent from LatAm with leading companies globally. They are seeking a Mid-level software engineer who is English-fluent and has strong communication skills to work remotely, focusing on building and shipping features using TypeScript, developing serverless APIs, and integrating AI/ML models.

Responsibilities:

• Build and ship features end-to-end using TypeScript across backend and frontend
• Develop and maintain serverless APIs (AWS API Gateway + Lambda)
• Work on a modern frontend with Next.js, deployed via S3 + CloudFront
• Design and implement systems that process biomarker and health data
• Integrate and apply AI/ML models to generate user-facing insights
• Use Supabase for authentication and database interactions
• Collaborate directly with the founder(s) on product and technical decisions
• Continuously improve performance, reliability, and developer experience

Requirements:

• 3+ years of professional experience as a software engineer
• Strong experience with TypeScript/JavaScript
• Experience building APIs and working with backend systems (serverless is a plus)
• Solid understanding of modern frontend frameworks (Next.js or React)
• Basic knowledge of AWS (Lambda, API Gateway, CloudFront, S3)
• Experience working with data-driven systems
• Some hands-on experience applying AI/ML (e.g. using APIs, building data pipelines, or working with models in production)
• Comfortable working independently and taking ownership of features
• Clear communicator in a remote, async environment
• Ok with overlapping with EU time zones
• Familiarity with Supabase or similar tools (Postgres, auth systems)
• Experience with LLMs or AI tooling (e.g. OpenAI APIs, embeddings, data pipelines)
• Experience in startups or small, fast-moving teams
• Interest in health, fitness, or longevity