Frontend Engineer & Product Developer
Juan José Peralta
I design and build digital products from idea to production — from enterprise banking platforms to SaaS products, POS systems and custom business software.
About me
I enjoy turning real business problems into working software. My main focus is Frontend Engineering, but in
practice that means being involved in the whole product — architecture, UX, integrations, and backend when the
project needs it.
Today that shows up in two ways: at Neoris, I work on the frontend of an enterprise onboarding platform for
Banco Macro. On my own, I design and build complete products for real businesses — a SaaS ordering platform for
bars and restaurants, inventory and POS software for a jewelry store, a booking system for a tennis club.
Before software, I was a tennis professor and player — that background is still where I learned to work under
pressure and care about the details.
If you're eager to delve further into my software endeavors, you can connect with me:
Work experience
Frontend Engineer
Neoris an EPAM Company, Buenos Aires, Argentina
2024 - Present
• Frontend Engineer on Banco Macro's Empresas (business) onboarding platform — a multi-step enterprise flow companies go through to open an account with the bank.
• Built and maintained complex form flows using React Hook Form and Valibot for validation, with Zustand handling client-side state across the multi-step process.
• Integrated the frontend with a Java backend and third-party services, including Google Maps, AWS WAF/Captcha and Daon for biometric verification.
• Worked closely with backend, QA and product teams to ship flows that are reliable, accessible and performant, following the team's development standards.
Tech Stack: React, TypeScript, Tailwind, React Hook Form, Valibot, Zustand, Java (backend integration)
Frontend Developer
Indicius, Buenos Aires, Argentina
2020 - 2023
• As a Frontend Developer at Indicius since 2020, I've been the creative force behind translating design concepts into vibrant and functional digital experiences.
• I played a key role in ensuring our products are not only visually appealing but also user-friendly, accessible, scalable, and high-performing.
• Collaborated closely with the Design team to validate and implement their creative ideas seamlessly into the development process.
• Effective communication is at the core of my role—I've been proactive in updating all stakeholders on project-related situations, whether positive or negative, using tools like GitLab and Trello
• Adhered rigorously to development guidelines, contributing to the establishment of high standards for all company projects.
• Meticulously documented every aspect of the development process, ensuring a clear and comprehensive understanding of the tools involved for efficient project management.
Tech Stack: React, TypeScript, GraphQL, Gatsby, Figma, Contentful
Freelance Software Engineer / Product Developer
Remote, Buenos Aires, Argentina
2018 - Present
• Since 2018, I've designed and built complete digital products for real businesses — not just implementing designs, but owning the product from idea to production: architecture, UX, integrations and deployment.
• Rolling Order — a multi-tenant SaaS platform for bars and restaurants: QR ordering, Mercado Pago payments, an operational dashboard and automated workflows. Built with Next.js, TypeScript, Supabase and Mercado Pago.
• Santarelli Management System — inventory, POS and repair-workflow software for a jewelry business, covering multiple stores, stock transfers and barcode operations. Built with Next.js, TypeScript and Supabase.
• Club Pacífico Tenis — a booking platform for a tennis club, with real-time court availability and reservation management. Built with Next.js, TypeScript and Supabase.
See the Portfolio section below for more on each project.
QA Analyst
Pixel2HTML, Remote
2018 - 2020
• Spearheaded comprehensive manual and automated testing initiatives as a QA Engineer at Pixel2HTML, ensuring the timely delivery of flawless front-end development projects.
• Thrived in a fully remote work environment, collaborating seamlessly with teams across different time zones to maintain efficient communication and work.
• Validated design concepts rigorously, guaranteeing the feasibility of proposed ideas for swift and seamless development, contributing to on-time project completion.
• Developed and executed detailed test plans, utilizing both manual and automated testing methodologies to identify and rectify any bugs or inconsistencies in the frontend code, enhancing overall project quality and user experience.
Tech Stack: Jest, React Testing Library, Gitlab
Education
Fullstack Engineer Bootcamp, Soy Henry
Remote
2019 - 2020
Analista Programador
Universidad Nacional de La Plata
2016 - 2018
Self-Taught Education
Online / Personal Projects
On Going
Skills
Discover the proficiencies that allow me to bring imagination to life through design.
Multitasking Skills
Mastering the art of juggling tasks seamlessly, ensuring efficient and simultaneous handling of multiple projects for a harmonious workflow.
Time Management Skills
Meticulously organizing and optimizing time resources, guaranteeing timely delivery of high-quality frontend solutions in a dynamic development environment.
Strong Communication Skills
Facilitating smooth collaboration through clear and effective communication, ensuring a shared understanding of complex frontend concepts and fostering team synergy.
Problem Solving Skills
Thriving in the challenge of identifying and resolving intricate frontend issues, employing creative solutions to deliver optimal user experiences.
Innovative Design Thinking
Infusing creativity into frontend development, crafting innovative and visually appealing user interfaces that elevate the overall digital experience.
Responsive Web Development:
Specializing in the creation of responsive and adaptive websites, ensuring a seamless user experience across various devices and screen sizes.
Tech
The stack I currently build with, from frontend to deployment.
Explore my portfolio
A selection of the products I've designed and built — some of my own, some for real businesses solving real problems.
SaaS · Hospitality · Payments
Rolling Order
Description:
Rolling Order is a multi-tenant ordering platform designed for bars and restaurants, allowing customers to browse menus, place orders and pay directly from their table through QR codes. It also has an operational layer for the business — a dashboard, payment tracking, table sessions and automated workflows like nightly payment reconciliation and daily closing.
Role:
Product Design · Architecture · Full-stack Development · Deployment
Tech:
Next.js · TypeScript · Supabase · PostgreSQL · Mercado Pago · Vercel
ERP · POS · Inventory Management
Santarelli Management System
Description:
Custom business management software built for a jewelry store, centralizing inventory, stock movements, transfers, sales, suppliers, barcode operations and repair workflows. Real operational software the business runs on day to day, not a marketing website.
Role:
Product Architecture · UX/UI · Full-stack Development
Tech:
Next.js · TypeScript · Supabase · PostgreSQL · Tailwind · Vercel
Booking Platform · Sports
Club Pacífico Tenis
Description:
A booking platform built for Club Pacífico Tenis to digitalize the reservation and administration of its tennis courts. Members check real-time court availability and book a time slot, with overlap validation to prevent double-booking.
Role:
Product Design · Full-stack Development
Tech:
Next.js · TypeScript · Supabase · PostgreSQL · Tailwind CSS
Brand Website · Guided Configurator · Internal CRM
LDM Guitars — Atelier OS
Description:
LDM Guitars is a luthier workshop building handmade, vintage-spec guitars. I designed and built its public site — including a guided builder that lets customers configure a custom instrument step by step — plus Atelier OS, an internal CRM where the workshop manages builder leads, catalog options and photos of recent work.
Role:
Product Design · Architecture · Full-stack Development
Tech:
Next.js · TypeScript · Tailwind CSS · Supabase · Framer Motion · Vercel
Little Giants Courts
Brand - New Marketing Website
Description:
As part of the digital launch for Little Giants Courts, a unique padel experience tailored for kids, I led the development of a sleek and engaging landing page. Working closely with the branding team, we brought the vision to life through a playful yet polished user experience that resonates with both parents and young audiences.
Role:
I was fully in charge of the front-end development of the site, implementing the design with technologies like Next.js, TypeScript, styled-components, and Contentful for dynamic content management. I also handled mobile responsiveness, performance optimization, and third-party integrations like Formspree for the contact form.
Liteflix
Development
Description:
Under the umbrella of a freelance engagement, I immersed myself in a challenging project presented by LiteBox as part of their rigorous application process for the Software Engineer role. Leveraging my expertise in Next.js, Node.js, Drizzle, and Chakra UI
Role:
I assumed full responsibility for every aspect of the project's development.
Selected Agency Work
A selection of digital experiences built in collaboration with design and development teams.
Clinica Milito
Brand - Website - Development
Description:
As a Frontend Freelance developer, recently, I had the incredible opportunity to collaborate with a talented team of designers to give a new identity to the website of a renowned plastic surgery clinic. It was an exciting project that allowed us to implement advanced technologies such as Gatsby, React, HTML, SASS, and Node.
Role:
I actively participated in the comprehensive development of the project, collaborating closely with the design team.
Hathora
Brand - Website - Development
Description:
Within my role at Indicius, I played a pivotal part in orchestrating a thorough rebranding endeavor. Leveraging avant-garde technologies, we meticulously crafted a sophisticated and approachable image that appealed to corporate stakeholders and tech enthusiasts.
Role:
I actively participated in the comprehensive development of the project, collaborating closely with the design team.
Operators Guild
Brand - Website - Development
Description:
Within my role at Indicius, I played a pivotal part in orchestrating a thorough rebranding endeavor. Leveraging avant-garde technologies, we meticulously crafted a sophisticated and approachable image that appealed to corporate stakeholders and tech enthusiasts.
Role:
I actively participated in the comprehensive development of the project, collaborating closely with the design team.
Arena Analytics
Brand - New Marketing Website
Description:
Within my role at Indicius, I played a pivotal part in orchestrating a thorough rebranding endeavor. Leveraging avant-garde technologies, we meticulously crafted a sophisticated and approachable image that appealed to corporate stakeholders and tech enthusiasts.
Role:
I actively participated in the comprehensive development of the project, collaborating closely with the design team.
Let's create together
Ready to transform your vision into an amazing online experience?