UX redesign shipped 🚀

Users love the new flow!

Prototype ready for review

Conversions up 40%

MVP deployed to prod

Investors impressed!

Feature complete ✓

Product-market fit 🎯

Next.js app optimized

Performance looks great

API integration done

Tests all passing 💚

Design system updated

Team velocity 📈

Sprint goals achieved

Stakeholders aligned ✓

User research insights

NPS score: 72!

Shipped to 10k users

Retention looks solid

Tomás Maritano

Product Engineer

I build products that users love
and businesses need.

View projects Let's talk

About

ProductEngineerwith7+yearsbuildingdigitalproductsacrossArgentina,Denmark,Andorra,andtheUS.I'veledUXteams,managedproducts,andshippedcodeinfintech,e-commerce,andoperations.

Iworkbestintheambiguousspacebetween"idea"and"shippedproduct".Idesigninterfaces,writecode,andmakedecisionswhenthere'snoplaybook.

Currentlybuildingtoolsthathelppeoplenavigatecomplexfinancialsystems.

Tech I use

TypeScriptReactNext.jsNode.jsPostgreSQLSupabaseFigmaFramer

DólarGaucho

Fintech platform bringing clarity to Argentina's volatile economy

fintechfounderdata-reliability

TurboTime

PM challenge - Internal tool replacing Excel for medical supply orders

product-managementdesign-challengeprototyping

View all projects →

Experience

Unicoin

Jan 2024 - Nov 2025

Frontend Developer·United States (Remote)

Owned and implemented complex, state-heavy frontend features using React and Next.js
Built and maintained production-grade UI flows critical to the core product experience
Improved frontend reliability by reducing UI edge cases and inconsistent states

Valere Realms

Aug 2023 - Dec 2024

Senior Frontend Engineer·United States (Remote)

Owned and implemented complex, state-heavy frontend features using React and Next.js
Built and maintained production-grade UI flows critical to the core product experience
Translated product and UX requirements into clear frontend logic and reusable components

Grandvalira SAETDE

May 2022 - Nov 2023

Full Stack Engineer·Andorra (On-site)

Owned and implemented complex frontend features using React and Next.js, enhancing user experience
Built and maintained production-grade UI flows critical to the core product experience
Translated product and UX requirements into clear frontend logic and reusable components

Wolt

May 2020 - May 2022

Frontend Developer·Copenhagen, Denmark (On-site)

Developed and maintained internal frontend tools to support time-critical operations
Created data-driven user interfaces emphasizing clarity, speed, and reliability
Managed complex UI states for real-time data and operational workflows
Collaborated with backend systems to ensure seamless data flow and consistent frontend performance

Su Web Express

Apr 2017 - Jun 2018

Frontend Developer·Buenos Aires, Argentina (On-site)

Maintained and built client websites with focus on usability and responsive design
Worked with HTML, CSS, and JavaScript to create layouts based on design requirements
Ensured cross-browser compatibility, performance, and visual consistency
Collaborated with designers and developers to deliver user-friendly websites

What others say

"
His smart, innovative approach to UX design was instrumental in elevating our web design to new heights. He possessed a unique ability to blend creativity with user-centered design principles.
Lautaro CayargaGrowth Marketing Lead · Unicoin

"
Su capacidad para unir el mundo técnico con el negocio es excepcional. Logra traducir necesidades de negocio en soluciones tecnológicas efectivas, alineando equipos multidisciplinarios con objetivos claros.
Tomás PascualEngineering Leadership · Fintech & AI

"
His unique blend of knowledge and curiosity allows him to create innovative products that address both business and human needs. An effective team leader and exceptional mentor.
Nico Serna CastroBrand Strategy Director

"
Tiene una visión muy completa de cómo encarar el pipeline completo de desarrollo. Su capacidad para transformar ideas complejas en diseños claros y funcionales es impresionante.
Fermin EscribanoMarketing Manager

"
Es un profesional que busca la excelencia en sus resultados. Siempre a la vanguardia con los últimos avances de la tecnología. Tiene una mirada artística que acompaña de forma integral el desarrollo de sus trabajos.
Candela CrostaArt Director

"
What was magical was his willingness to always go the extra mile to get the job done. Self-driven and the ability to create value for the team.
Steffen WendtOperations Lead · Courier Gear

"
I recommend Thomas as a responsible and detail-oriented professional.
Stepan RevyakinVP of IT · KMGi Group

Oct 3

Contact

Let's work together

I'm currently open to new opportunities. Whether you have a project in mind or just want to chat, I'd love to hear from you.

Schedule a call15 min to get to know each otherOr send me an email

LinkedIn·GitHub·X

Experience

Unicoin

Jan 2024 - Nov 2025

Frontend Developer·United States (Remote)

Owned and implemented complex, state-heavy frontend features using React and Next.js
Built and maintained production-grade UI flows critical to the core product experience
Improved frontend reliability by reducing UI edge cases and inconsistent states

Valere Realms

Aug 2023 - Dec 2024

Senior Frontend Engineer·United States (Remote)

Owned and implemented complex, state-heavy frontend features using React and Next.js
Built and maintained production-grade UI flows critical to the core product experience
Translated product and UX requirements into clear frontend logic and reusable components

Grandvalira SAETDE

May 2022 - Nov 2023

Full Stack Engineer·Andorra (On-site)

Owned and implemented complex frontend features using React and Next.js, enhancing user experience
Built and maintained production-grade UI flows critical to the core product experience
Translated product and UX requirements into clear frontend logic and reusable components

Wolt

May 2020 - May 2022

Frontend Developer·Copenhagen, Denmark (On-site)

Developed and maintained internal frontend tools to support time-critical operations
Created data-driven user interfaces emphasizing clarity, speed, and reliability
Managed complex UI states for real-time data and operational workflows
Collaborated with backend systems to ensure seamless data flow and consistent frontend performance

Su Web Express

Apr 2017 - Jun 2018

Frontend Developer·Buenos Aires, Argentina (On-site)

Maintained and built client websites with focus on usability and responsive design
Worked with HTML, CSS, and JavaScript to create layouts based on design requirements
Ensured cross-browser compatibility, performance, and visual consistency
Collaborated with designers and developers to deliver user-friendly websites

Tomás Maritano

DólarGaucho

TurboTime

Experience

Unicoin

Valere Realms

Grandvalira SAETDE

Wolt

Su Web Express

Claude Code: Why Even Bother as a PM?

How I Finally Cracked the Code on Three.js + Sanity CMS Integration

Migrating Images to Cloudinary: How I Reduced My Repo Size by 99.7%

Let's work together

Tomás Maritano

DólarGaucho

TurboTime

Experience

Unicoin

Valere Realms

Grandvalira SAETDE

Wolt

Su Web Express

Claude Code: Why Even Bother as a PM?

How I Finally Cracked the Code on Three.js + Sanity CMS Integration

Migrating Images to Cloudinary: How I Reduced My Repo Size by 99.7%

Let's work together