Software Engineer
Proxify • June 2026 - Present
Software Engineer building
scalable digital products.
React • Next.js • TypeScript
Based in PragueWorking with companies worldwide
Expertise
SaaS Platforms
Architecting scalable, multi-tenant systems with a focus on long-term maintainability and global growth.
Web Performance
Engineering high-speed interfaces optimized for Core Web Vitals, SEO, and business conversion.
Technical Direction
Bridging the gap between business goals and robust code through strategic product architecture.
Engineering products that scale.
Fran Aragón
I'm Fran Aragón, a Software Engineer specialized in building high-performance digital products.
I design and build scalable SaaS platforms, web applications, and native mobile systems that solve real business problems. My work focuses on clean architecture, performance, and long-term maintainability.
Currently, I work as a Software Engineer designing enterprise-grade architectures and scalable systems. Previously, I stabilized core infrastructure and led frontend architecture at Solutia, and built tools at adidas’ Innovation team used in global workflows.
I am also the founder behind HomeStocker, a native iOS ecosystem for smart inventory management.
Based in Prague. Working with companies worldwide.
Engineering
HomeStocker SaaS
SwiftNative iOSCloud Architecture
Founder & Engineer. Native iOS application designed to reduce food waste through smart inventory tracking and cloud infrastructure.
View System
CD Estepona Platform
Next.jsPrismaPostgreSQL
Full-stack architecture built with Next.js and Prisma. Designed for high-performance content delivery and technical SEO (Lighthouse 90+).
View System
Experience
Frontend Lead & Software Engineer
Solutia s.r.o. • Nov 2025 - Jun 2026
- Stepped beyond frontend scope to stabilize core infrastructure, managing complex PostgreSQL database migrations and engineering reliable CI/CD pipelines.
- Refactored and modularized key critical sections of a massive legacy codebase (navigating 5,000+ line monolithic files) to improve maintainability within tight project deadlines.
- Led technical direction for B2B platforms, bridging the gap between fragile legacy systems and modern architectural standards.
Software Developer
adidas • July 2022 - September 2025
- Software engineer within adidas Innovation, contributing to digital platforms supporting global product creation.
- Co-developed the COCU tool, focusing on scalable frontend architecture and business synchronization.
- Built internal applications with React and TypeScript prioritizing maintainability and performance.
- Collaborated with cross-functional teams to ensure product success.
Fullstack Engineering Instructor
CEI Escuela de Diseño y Marketing • January 2022 - July 2022
- Taught Web Design (HTML5, CSS3, JavaScript) and Fullstack Development (PHP, MySQL).
- Mentored students through projects focused on production-level engineering practices.
Software Engineer
GransLiving • September 2021 - November 2022
- Migrated a WordPress monolith into a modern scalable application using Next.js.
- Designed and implemented UI architecture aligned with modern UX standards.
- Optimized performance and responsive behavior for international audiences.