software engineer

The Mid-level software engineer will develop features using TypeScript, work with serverless APIs, and integrate AI/ML models while collaborating with the team., * 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

We are looking for someone with exceptional communication and relationship-building skills, who embraces changes while maintaining strong attention to detail. An interested and proactive person, who's constantly learning and improving their skills., * 3+ years of professional experience as a software engineer

• MUST: Strong experience with TypeScript/JavaScript
• Experience building APIs and working with backend systems (serverless is a plus)
• MUST: Solid understanding of modern frontend frameworks (Next.js or React)
• MUST: Basic knowledge of AWS (Lambda, API Gateway, CloudFront, S3)
• Experience working with data-driven systems
• MUST : 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

It´s a plus:

• 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

• The Salary range offered for this position varies from (USD) $3,000 - $4,000 per month, depending on seniority and skillset.
• This position is for an independent contractor, through a payroll platform.
• The talent will work REMOTELY allocated at our client.

Here are the steps for this process: Application review/approval > Screening interview with GoFasti's team > We build and send your profile to our client > Profile review/approval by client > Interview with the client > Hiring and onboarding.

Hello! We are GoFasti, a Talent-as-a-Service. GoFasti bridges the gap between world-class developers and designers from LatAm and first-class companies around the globe.