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I uncover real problems, design validated solutions, and ship them to production. I’m a Product Designer and Frontend Developer who works end-to-end—from discovery and qualitative research through prototyping, user validation, and implementation. I co-created and shipped SantoTo+ Pro, the first official app of Universidad Santo Tomás, and I’ve led product design for multiple web interfaces with a strong focus on usability, design systems, and reducing ambiguity between design and engineering.…I uncover real problems, design validated solutions, and ship them to production. I’m a Product Designer and Frontend Developer who works end-to-end—from discovery and qualitative research through prototyping, user validation, and implementation. I co-created and shipped SantoTo+ Pro, the first official app of Universidad Santo Tomás, and I’ve led product design for multiple web interfaces with a strong focus on usability, design systems, and reducing ambiguity between design and engineering.

JULIAN ESTEBAN MONTOYA ROSAS

Product Designer, UX Designer, UI Designer, +2

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I uncover real problems, design validated solutions, and ship them to production. I’m a Product Designer and Frontend Developer who works end-to-end—from discovery and qualitative research through prototyping, user validation, and implementation. I co-created and shipped SantoTo+ Pro, the first official app of Universidad Santo Tomás, and I’ve led product design for multiple web interfaces with a strong focus on usability, design systems, and reducing ambiguity between design and engineering.…I uncover real problems, design validated solutions, and ship them to production. I’m a Product Designer and Frontend Developer who works end-to-end—from discovery and qualitative research through prototyping, user validation, and implementation. I co-created and shipped SantoTo+ Pro, the first official app of Universidad Santo Tomás, and I’ve led product design for multiple web interfaces with a strong focus on usability, design systems, and reducing ambiguity between design and engineering.

Available to hire

I uncover real problems, design validated solutions, and ship them to production. I’m a Product Designer and Frontend Developer who works end-to-end—from discovery and qualitative research through prototyping, user validation, and implementation.

I co-created and shipped SantoTo+ Pro, the first official app of Universidad Santo Tomás, and I’ve led product design for multiple web interfaces with a strong focus on usability, design systems, and reducing ambiguity between design and engineering.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Spanish; Castilian

Fluent

English

Intermediate

Work Experience

Product Designer & Frontend Developer at Trébol Colombia

September 1, 2025 - May 1, 2026

Led end-to-end product design for three web interfaces (research, wireframes, Figma prototypes) and oversaw implementation to achieve client approval on the first review with no critical bugs post-launch. Defined three complete product identities (naming, visual system, brand guidelines) aligned with client business goals. Reduced revision cycles by 30% by building design systems and component specs that clarified decisions for development. Conducted UX research with real users and ran usability testing across four corporate projects, translating qualitative insights into prioritized design decisions.

Product Designer & Software Engineer — SantoTo+ Pro App at Universidad Santo Tomás (Pioneer Project)

June 1, 2023 - November 1, 2024

Co-created SantoTo+ Pro, the university’s first official product, published on the App Store with 200+ active users. Led UX architecture decisions, flow prioritization, and navigation strategy. Coordinated a cross-disciplinary design and engineering team across three release cycles using agile methodology, maintaining zero critical bugs per release through continuous user validation. Designed and validated 120+ screens with real users, iterating ahead of each launch based on findings. Built the app’s complete design system in Figma as a scalable foundation for future iterations.

Graphic & Audiovisual Designer — Human Resources (SENA Internship) at Banco Itaú Colombia (SENA Internship)

January 1, 2020 - August 1, 2020

Produced 40+ graphic and audiovisual pieces for onboarding materials and internal campaigns using Illustrator, Photoshop, and Premiere Pro, with zero revision requests. Developed motion graphics content in After Effects for internal communications at the bank.