Julian Mendez
From: Colombia
Location: Florencia, CO
On Useme since 6 January 2026
About me
I am a senior software engineer with strong experience delivering scalable, production-grade systems across the full stack. I specialize in backend and frontend development, cloud architecture, DevOps automation, and AI-driven solutions. I design and build clean, maintainable software—from APIs and modern UIs to CI/CD pipelines, containerized deployments, and cloud infrastructure on AWS/GCP/Azure. I have hands-on experience integrating AI/ML and LLM-based features into real-world applications. Known for strong problem-solving, system design, and ownership, I bridge business needs with technical execution to deliver reliable, high-impact solutions.
Categories
CV / Résumé
Mar 2022 - Now
Senior Software Engineer
Ontraport
● Developed a responsive CRM web application ● Designed and optimized GraphQL and RESTful API ● Built dynamic, SEO-friendly frontendss ● Migrated core features into Dockerized microservices ● Integrated Redis ● Ensured application reliability
Jul 2020 - Mar 2022
Full-Stack Developer
Upgrade, Inc
●Built high-performance backend services ● Architected and implemented solutions ● Developed serverless functions ● Created authentication and authorization systems
Nov 2018 - Jul 2020
Frontend Developer
Southern Code
● Created user interfaces ● Partnered with backend engineers ● Built UI components
Jan 2018 - Dec 2018
Software Developer
Twenty Ideas
● Developed E-Cash Management tools ● Created dynamic frontend components
Portfolio
-Architected unified payment platform for web/mobile with financial APIs -Reduced payment latency by 72% via API optimization and React.js enhancements -Integrated Stripe, PayPal, crypto APIs into dashboard serving 50K+ monthly transactions
-Built architecture education platform with interactive modules -Created Electron.js desktop app increasing engagement by 45% -Implemented OpenAI chatbot reducing support requests by 65%
-Engineered Angular.js service comparison platform handling 2M+ monthly users -Improved SEO ranking by 300 positions through structured data and SSR -Reduced page load from 4.2s to 1.1s via image optimization and CDN strategy
-Modernized legacy eCommerce for European agriculture suppliers -Migrated PHP monolith to Laravel/Vue.js microservices -Reduced checkout abandonment by 38% with mobile-first redesign