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Daniel Diaz
@daniieldz
Level 2
Full Stack Software Engineer
Argentina
English, Spanish
About me
Hello! I’m Daniel, a Full Stack Software Engineer.
With 3+ years of freelance experience, I've delivered 40+ projects for international clients.
As a Computer Science student, I specialize in taking ideas from concept to a deployed product. My expertise lies in building scalable backend architectures with Node.js, TypeScript, and AWS, alongside crafting high-performance interfaces using Next.js and React.
Whether you need a robust RESTful API, microservices with Docker, database optimization, or a custom SaaS platform, I deliver clean, maintainable code.
Let's build something great!
Skills
Daniel Diaz
$20/hour
Offline •
Average response time: 1 hour
See my services
Full Stack Web Applications
I will convert excel to a custom web calculator or web app
Full Stack Web Applications
I will be your front end web developer using react and tailwind
Want to work on an hourly basis?
Tell Daniel Diaz what you need.
$20
/
hourPortfolio
Work experience
Founder & Full Stack Software Engineer
MenuYa.online • Self-employed
Apr 2025 - Present • 1 yr 1 mo
Architected and developed a complete SaaS platform from scratch, enabling restaurants to create interactive digital menus and receive orders directly via WhatsApp. Key achievements and responsibilities: • Engineered the entire system architecture, including a comprehensive admin dashboard for restaurant management and optimized public-facing menu pages for high performance. • Implemented a premium recurring subscription model, integrating MercadoPago securely for real-time transaction processing. • Managed the full software development lifecycle, prioritizing clean code, scalable database design (BaaS), and an intuitive UI/UX. • Handled cloud deployment and CI/CD pipelines, ensuring high availability for active users. Tech Stack: Next.js, TypeScript, React, Supabase (Auth, DB, Storage), Tailwind CSS, Zustand, Vercel
Full Stack Web Developer
Fiverr • Freelance
Jan 2023 - Present • 3 yrs 4 mos
- Managed the full lifecycle of over 40 international projects, translating manual business processes into efficient web systems - Designed and developed scalable RESTful APIs using Node.js, TypeScript, and NestJS, ensuring security and performance. - Built responsive, user-centric frontend interfaces using Next.js, React, and Tailwind CSS, implementing designs from Figma with precision. - Architected SQL/NoSQL databases (PostgreSQL, MongoDB) and optimized queries to improve system response times. - Integrated third-party services and payment gateways to enable real-time transaction processing.
31 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 31 Reviews
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Most relevant
shoestring25
United States
Daniel was responsive, knowledgable & polite. You know you are in good hands when your trust the expert so much that you give them the wheel & rely on them to drive the process. When the initial goal was achieved & I saw how good it was, ideas surfaced to make it even better. Daniel graciously & immediately...
Helpful?
lsgap01
Repeat Client
United States
Seller's Response
Helpful?
lsgap01
Repeat Client
United States
Daniel was exceptional. His mastery and speed were above and beyond. I STRONGLY recommend his services to all.
Helpful?
gashortsalepro
Repeat Client
United States
This was a small add on project to help me deploy the product I previously contracted for. It was done well.
Helpful?
gashortsalepro
Repeat Client
United States
Got what I wanted done with very little back and forth at all. No language barrier, full understanding and attention to the communicated scope. Will work with Daniel again...
Helpful?
