Maria Colomina

Rebuilt the mobile app from scratch for a men's fertility health platform, shipping 6 new features within a 5-month engagement. Built the design system from the ground up and led design through the app's public market launch.

Redesigned the full hospitality property management system end-to-end, including a complete rebrand and a simplified payment flow. Built a design system covering every component used across the redesigned platform.

Designed and shipped roughly 20 screens across the Move.nl real estate app, with every component sourced from a shared design system. Restructured design-to-dev handoff and built a scalable design system in Figma.

Transitioned from full-time Android engineering into UX/UI design through a parallel one-day-a-week design internship. Conducted stakeholder interviews, usability studies, and competitive audits for the CRM's Agenda feature.

Built and maintained a mobile CRM system for real estate agents. Supported the team's early UI/UX transition with technical input during design discussions.

Built Android applications across entertainment, payments/POS, travel, and healthcare domains using Kotlin/Java and modern architecture (MVVM, Jetpack).

Managed the Android application lifecycle across sport, entertainment, payments, travel, real estate, hospitality, health, and telecom domains, including incident resolution and performance tuning.

Developed and maintained Java web and backend applications.

Developed and maintained enterprise Java web applications, working with databases, APIs, and cross-functional teams.

Professional certificate in UX design covering user research, wireframing, prototyping, and usability testing.

Master's degree in IT Technologies with focus on software engineering, information systems, and application architecture.

Bachelor's degree in Applied Informatics covering computer science fundamentals, software development, and system design.