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Isaac Rojo

Isaac Rojo

Fullstack Developer

Acarigua, Portuguesa, VE
English, Spanish

Background


About

About

Backend-focused Software Engineer who architects scalable, event-driven systems for AI products. I build resilient data pipelines, secure transactional workflows, and real-time APIs using Node.js, TypeScript, and cloud-native patterns. Comfortable bridging backend infrastructure with modern web frontends to deliver cohesive, end-to-end experiences.

Work Experience

Work Experience

  • Fullstack Developer, Prompthunt

    Mar, 2024 - Jun, 20251 year 3 months

    Sole full-stack engineer responsible for backend services, frontend experiences, and platform infrastructure of an AI-powered SaaS. Designed scalable, event-driven systems, resilient data pipelines, secure payment flows, and real-time APIs using Node.js, TypeScript, and cloud-native patterns.

    • Architected a serverless, event-driven AI pipeline using Upstash (Workflows/QStash) and fal.ai/ComfyUI to deliver multi-step image generations, enforcing pipeline compatibility to prevent job failures.

    • Built a resilient webhook processor for AI jobs that tracked per-step costs, automatically retried failures with new parameters, and streamed real-time updates via Pusher while asynchronously uploading assets to Cloudflare R2.

    • Delivered type-safe APIs with tRPC and Prisma for a public LoRA model registry, featuring full CRUD operations, Zod validation, and soft-delete functionality.

    • Engineered credit- and team-based billing flows using Stripe Checkout, supporting bundles, photo packs, subscriptions, and programmatic coupon validation for monetization.

    • Enforced tiered rate limiting and caching with Upstash Redis/Ratelimit, and secured the platform with NextAuth (Google/Facebook/Credentials/Postmark) with automated QStash-driven onboarding.

  • Lead Frontend DeveloperBlind Creator INC

    Jan, 2023 - Oct, 20241 year 9 months

    As Lead Frontend Developer at Blind Creator, a cutting-edge Fin-SaaS platform for the creators economy, I spearheaded frontend development efforts, focusing on building scalable and maintainable solutions. My responsibilities included creating monorepos for efficient package distribution across multiple Next.js projects within the influencer marketing domain. I was deeply involved in the technical aspects of various marketing campaign initiatives.

    • Designed and developed user-centric and responsive frontends for web and mobile applications leveraging modern technologies such as React with Next.js.

    • Collaborated closely with cross-functional teams (product management, design, and backend) to ensure seamless integration and consistent functionality across all platforms.

    • Mentored junior frontend developers, providing technical guidance and fostering a culture of continuous learning and growth within the team.

  • Frontend Web DeveloperFamosos.com & Famosos Ads

    Oct, 2020 - Nov, 20222 years 1 month

    At Famosos, a marketplace connecting Hispanic celebrities with those seeking personalized video shoutouts and endorsements, I contributed to the Frontend Developer team. My primary focus was on maintaining and implementing new features to enhance the platform's user experience.

    • Played a key role in the redesign of the Celebrities website, resulting in a more intuitive and feature-rich user experience.

    • Successfully integrated Next.js into an existing React project, significantly reducing page weight and improving load speed by 300%.

    • Implemented and maintained various payment gateway integrations, including Stripe, d-Local, PayPal, and Spreedly.

    • Developed internalization support, automating the translation process throughout the project.

Skills

Skills

  • TypeScript
  • JavaScript
  • SQL
  • Python
  • Node.js
  • tRPC
  • Next.js
  • Prisma
  • PostgreSQL
  • Upstash (Workflows, QStash, Redis)
  • fal.ai
  • ComfyUI
  • Stripe
  • NextAuth
  • Cloudflare R2
  • Pusher
  • Sentry
  • Docker
Education

Education

  • , , Tecnicatura, Informática

    Jan, 2017 - Jan, 2020

Certificates

Certificates