RAINIERSARMIENTO
I build clean, scalable applications and great user experiences.
3+
Years of Experience
7+
Completed Projects
10K+
Hours Worked
I believe in a user-centered design approach, tailoring every project to meet the specific needs of its users.
Hi, I'm Rainier.
I'm a software engineer dedicated to turning ideas into robust solutions. I focus on performance, accessibility, and maintainable code. My approach prioritizes both user needs and business goals.
My Stack
frontend
- JavaScript
- TypeScript
- React
- Next.js
- Tailwind CSS
backend
- Node.js
- Express.js
database
- PostgreSQL
- MongoDB
tools
- Git
My Experience
Freelance Work
Software Engineer
November 2025 – Present
Trikaiser LLC
Help Desk Technician
February 2025 – October 2025