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ivandujaut

Hi, I'm Iván

Product Engineer, with four years split between deciding what gets built and building it. The most useful thing I did at Banana Software was cut roughly one in five planned features from the roadmap, because they didn't earn what they cost. The ones that stayed, I wrote myself, in Next.js and TypeScript. I live in Argentina and work remotely with teams in the US and LATAM.

I'm a bioengineer from ITBA. My thesis predicted 2-year mortality in patients with colorectal cancer liver metastasis, using real data from Hospital Italiano de Buenos Aires, and it left me in the habit of asking a decision for a number before making it. I came into product through the frontend: I went through Techstars W24 in New York with Tumo, and later led four projects at Banana with teams of three or four people and up to 1,500 active users.

I'm looking for teams where product, engineering and business get discussed at the same table, mostly healthtech, fintech or growing startups. If you have a specific role, email me. If it's a product you're thinking about and you want a second head on it, book a call.

Experience

Prizmstack
Feb 2026 – Present

Product Engineer · Prizmstack

Remote · California

I build FIJI, a valuation platform for real estate businesses. I lead the migration from no-code (Bubble) to Next.js and build the simulation engine that turns operating metrics into financial valuations.

I work on user flows, dashboards, the marketplace and internal admin tools.

Stack: Next.js, TypeScript, PostgreSQL, Supabase, Vercel

IPSAJ
Oct 2024 – Present

Teacher · Instituto Politécnico San Arnoldo Janssen

Posadas, Argentinain parallel

I teach Digital Techniques I to 4th-year Electronics students: Boolean algebra, Karnaugh maps, combinational and sequential logic. I also help plan the academic program.

Banana Software
Dec 2021 – Jan 2026 · 4 years

Banana Software · Trainee → Product Engineer

Remote

My longest experience, and where I learned to build product. I came in as a Trainee and left as a Product Engineer, four years later.

As Product Engineer (Aug 2025 – Jan 2026), I improved sprint predictability from 60% to 90% by modeling real effort. Removed ~20% of low-value features by prioritizing by impact.

As Semi Senior (Jul 2024 – Jul 2025), I led 4 end-to-end projects with teams of 3-4 people. B2C and B2B platforms with up to 1,500 active users. Integrated payments with Mercado Pago, PayPal and Stripe; optimized B2C checkout, increasing booking completion rates.

As Junior (Jan 2023 – Jun 2024), I introduced Next.js, Tailwind, shadcn and MaterialUI for the first time at the company.

Stack: Next.js, TypeScript, Node.js, ExpressJS, Tailwind CSS, shadcn/ui, MaterialUI, Stripe, PayPal, Figma, JIRA

Tumo
Aug 2023 – May 2024

Frontend Developer · Tumo (Techstars '24)

Remote · New Yorkparallel to Banana

Fintech product 0→1 to simplify tax management for freelancers in Argentina. Participated in the Techstars W24 batch (Stellar & MoneyGram Accelerator) in New York as part of the founding team.

  • ~100 first users during the validation phase
  • Onboarding improvements that increased engagement ~40%
  • Roadmap decisions discussed first-hand with the founders

Stack: Next.js, TypeScript, AWS

Dräger
Oct 2021 – Dec 2021

Planner Contract Business · Dräger

Buenos Aires

My first full-time role, before moving into software. Planned preventive maintenance at a national level using Microsoft Dynamics NAV: Service Requests, Sales Orders, Service Orders, resource management and digital KPIs.

It lasted three months and showed me how a large company designs its processes and measures its performance.

Tools: Microsoft Dynamics NAV, ERP, KPIs

Education

ITBA

Instituto Tecnológico de Buenos Aires (ITBA)

Biomedical Engineering

Buenos Aires

Thesis: 2-year mortality prediction and KRAS gene mutation in colorectal cancer liver metastasis, developed in collaboration with Hospital Italiano de Buenos Aires. The research came from a need the hospital had: predicting how an oncology patient would evolve from their historical data. I worked with real clinical data, predictive models and statistics applied to oncology.

IPSAJ

Instituto Politécnico San Arnoldo Janssen (IPSAJ)

Electronics Technician

Posadas, Argentina

Technical training in analog electronics, digital electronics and communications. I teach there now.

Toolbox

I mostly work with Next.js, TypeScript and PostgreSQL. I've integrated payments with Stripe, Mercado Pago and PayPal, and moved product off Bubble to rewrite it in Next.js.

Frontend
React, Next.js, TypeScript, Tailwind CSS, shadcn/ui, MaterialUI
Backend & Data
Node.js, PostgreSQL, Supabase, REST APIs
Payments
Stripe, Mercado Pago, PayPal
Product & Design
Figma, JIRA, Linear, Notion
Infrastructure
Vercel, GitHub Actions, CI/CD
Data & Analysis
Python, NumPy, Pandas (from bioengineering background)

Languages

Spanish · Native

Contact

If you want to talk, reach me via . I reply within 24h.

Also on LinkedIn · GitHub