Building Scalable Products Full-Stack Founding Engineer
I help businesses and startups design and build high-quality web and mobile applications. With expertise as a founding engineer and full-stack freelancer, I deliver solutions that are fast, reliable, and built to grow — from idea to deployment.
Partner for Growth
As a founding engineer and full-stack freelancer, I help startups and teams transform ideas into reliable, high-performing products that can evolve as the business grows
Build Fast, Scale Smart
design and develop production-ready web and mobile applications using modern stacks — React, Node.js, Golang, and React Native — ensuring fast delivery and long-term scalability
Quality That Converts
Every feature I ship is built with user experience, maintainability, and performance in mind — helping clients achieve measurable results, not just working code
Partner for Growth
As a founding engineer and full-stack freelancer, I help startups and teams transform ideas into reliable, high-performing products that can evolve as the business grows
Build Fast, Scale Smart
design and develop production-ready web and mobile applications using modern stacks — React, Node.js, Golang, and React Native — ensuring fast delivery and long-term scalability
Quality That Converts
Every feature I ship is built with user experience, maintainability, and performance in mind — helping clients achieve measurable results, not just working code
Partner for Growth
As a founding engineer and full-stack freelancer, I help startups and teams transform ideas into reliable, high-performing products that can evolve as the business grows
Build Fast, Scale Smart
design and develop production-ready web and mobile applications using modern stacks — React, Node.js, Golang, and React Native — ensuring fast delivery and long-term scalability
Quality That Converts
Every feature I ship is built with user experience, maintainability, and performance in mind — helping clients achieve measurable results, not just working code
Featured Projects & Case Studies
A showcase of turning complex problems into beautiful, impactful products.
Perigigi - Electronic Medical Record Platform
Full-Stack Freelance / Founding Engineer
As a founding engineer, I built Perigigi — an electronic medical record (EMR) platform designed by Indonesian dentists to simplify clinic operations and enhance patient care. Integrated with Indonesia’s SatuSehat (Ministry of Health) and BPJS Kesehatan systems, Perigigi empowers dental professionals to manage records, services, and patient data securely through both web and mobile apps.
Key Responsibilities
Tech Stack
Tanyo - Decentralized Consultation & Learning Platform
Full-Stack Freelance Engineer
Led development as a full-stack freelance engineer for TANYO, a decentralized social platform where experts can sell online consultations, courses, webinars, and video calls. The app integrates real-time WebRTC communication, and scalable microservices — helping professionals connect, teach, and grow their audience globally.
Key Responsibilities
Tech Stack
Kind Words From Collaborators
“Working with Greg was transformative. His focus on system stability and long-term scalability ensured our platform runs smoothly even under heavy growth. Truly a rare engineer who builds for the future.”
Diaz Gotama
Founder, Perigigi
"Greg technical depth and clean architecture mindset helped us scale Tanyo faster than we imagined. He doesn`t just code — he engineers systems that stay robust and secure for years.”
Avan Fadli
CEO, Tanyo & Twillink
“When it comes to fullstack excellence, Greg stands out. His attention to performance, reliability, and security gives us confidence to innovate without worrying about technical debt.”
Leo
Co-Founder, Feeder
“Working with Greg was transformative. His focus on system stability and long-term scalability ensured our platform runs smoothly even under heavy growth. Truly a rare engineer who builds for the future.”
Diaz Gotama
Founder, Perigigi
"Greg technical depth and clean architecture mindset helped us scale Tanyo faster than we imagined. He doesn`t just code — he engineers systems that stay robust and secure for years.”
Avan Fadli
CEO, Tanyo & Twillink
“When it comes to fullstack excellence, Greg stands out. His attention to performance, reliability, and security gives us confidence to innovate without worrying about technical debt.”
Leo
Co-Founder, Feeder