Leomer R.
Senior Full Stack Engineer
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Leomer R. is a Senior Full Stack Engineer with a robust career spanning over 10 years, focusing on developing scalable web applications using JavaScript, MERN stack, Python, and PHP. Based in Manila, Philippines, Leomer’s expertise encompasses creating dynamic frontend interfaces and robust backend systems that significantly enhance user experiences. Leomer has led diverse projects across different industries, utilizing AWS services and Apache Kafka for real-time data processing. His work at Canva involved designing React.js applications and Python microservices, leading to notable improvements in application performance. At Microsystem Ai, he managed a team of developers, achieving significant performance boosts in applications using Flutter and FastAPI. His tenure at Globe Telecom featured contributions to cloud service integration and development of real-time inventory tracking systems. Leomer holds a degree in Computer Science from the Polytechnic University of the Philippines and has achieved certifications such as AWS Certified DevOps Engineer. He thrives in Agile environments, skillfully mentoring junior developers, while remaining keen on contributing to innovative projects remotely.
Experience
Senior Full Stack Engineer
Canva · 2021 — 2024Designed and developed applications utilizing React.js for the frontend and Python-based microservices for backend logic. Integrated RESTful APIs with React.js to create user interfaces, resulting in improved load times. Led the establishment of microservices architecture using Python (Flask/FastAPI) and Node.js for real-time data processing. Employed AWS services (SQS, SNS, Lambda) to build scalable cloud solutions. Collaborated with frontend and backend teams to ensure smooth API integration. Conducted code reviews and mentored junior developers.Senior Full Stack Developer
Microsystem Ai Smart Village · 2018 — 2021Directed the migration of Laravel from version 5.2, ensuring operational continuity during the MySQL to MongoDB transition. Developed essential features that enhanced performance in high-traffic areas. Utilized Azure services for scalable application deployment, achieving high uptime. Managed testing with PHPUnit and implemented CI/CD pipelines. Supervised a team of five developers, delivering multiple major features. Created backend systems using Python (Flask, FastAPI) tailored for healthcare and logistics. Implemented Apache Kafka for data streaming and built RESTful APIs to support substantial transaction volumes.Software Developer
Globe Telecom · 2015 — 2018Created internal web applications with PHP, Laravel, and Vue.js, contributing to user satisfaction. Worked on a tool supporting extensive daily transactions and ensured consistent uptime. Assisted with AWS cloud services integration for secure data storage. Employed PHPUnit for testing and automated deployment workflows. Developed real-time inventory tracking systems using Node.js and WebSocket. Managed cloud environments and migrated legacy systems to enhance system scalability. Delivered headless CMS solutions allowing flexible content management.Junior Software Developer
PLDT · 2008 — 2015Supported the development of a CRM system for a large user base, enhancing response times. Contributed to system upgrades while assisting with multiple major projects. Gained experience in cloud migration and basic AWS usage. Developed full-stack web applications using PHP/Laravel and JavaScript. Collaborated with design teams to implement responsive user interfaces. Improved backend API responses to optimize system performance. Participated in Agile ceremonies, contributing to project delivery.
Skills & Expertise
Education
- Bachelor's Degree, Computer SciencePolytechnic University of the Philippines (PUP) · 2012 — 2016