Open to opportunities

Gabriel Villoldo

@gabrielvilloldo

Message

Senior software engineer focused on shipping user growth and scalable systems with AI-native development workflows.

Argentina

Message

What I'm looking for

I’m looking for a team where I can combine product-minded engineering with AI-native workflows to ship fast and reliably—owning growth-critical systems, improving onboarding and user experience, and tackling complex scalability challenges in high-growth environments.

I’m a product-minded Senior Software Engineer with 15+ years building consumer-facing products from 0 to 1. I balance technical excellence with rapid product iteration, especially when the bar is reliability and speed.

I lead Product-Led Growth initiatives to optimize onboarding funnels and drive measurable activation gains—like a 15% increase in user activation. I also focus deeply on system reliability, delivering signup flows with deferred checks to maintain a 100% API success rate during high-traffic peaks.

As a Founding Engineer, I built a multi-tenant scheduling platform from scratch, scaling to 2,000+ monthly appointments and 300+ daily active users. I engineered secure payment and scheduling flows supporting $42k+ in monthly transacted volume for 25+ B2B paying customers, with a resilient backend designed for 99.9% uptime.

I’ve also shipped customer-impacting product work in the Telehealth space, including a 30% increase in user adoption through performance optimizations and UX refinements. Across roles, I’m highly efficient in AI-native development workflows (Claude Code, Cursor), using them to accelerate delivery while preserving quality.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Engine

Sep 2025 - Present (8 months)

Led technical initiatives in the Product-Led Growth team to optimize onboarding funnels, increasing user activation rates by 15%. Delivered core signup with deferred checks to maintain a 100% API success rate during high-traffic peaks (600+ daily signups).

React PostgreSQL AWS Lambda DynamoDB SQS S3 Onboarding Fraud Screening

Founding Engineer

Zala

Jun 2024 - Sep 2025 (1 year 3 months)

Built a multi-tenant scheduling platform from scratch, scaling to 2,000+ monthly appointments and 300+ daily active users. Engineered secure payment and scheduling flows managing $42k+ in monthly GMV for 25+ B2B paying customers and delivered a resilient backend with 99.9% uptime (SLA).

Java React PostgreSQL Azure Payment Processing API Security GMV Full Stack Architecture

Senior Software Engineer

Impulsum Venture Colab

Mar 2021 - Jun 2024 (3 years 3 months)

Developed the Telehealth vertical for GoodRx mobile apps, increasing user adoption by 30% through performance optimizations and UX refinements. Scaled cmpsr.io and led the 0-to-1 development of a stealth-mode productivity platform focused on algorithmic time-optimization and user performance analytics.

React PostgreSQL Performance Optimization Mobile App Development Performance Analytics Telehealth