Lac Tran
Full-stack Software Developer
Building scalable, maintainable software solutions with 5+ years of experience in full-stack development and cloud architecture.
About Me
I build, maintain, and ship elegant, efficient, and scalable software solutions. From designing complex systems to writing clean code, I thrive on solving real-world problems and delivering products that stand the test of time.
Frontend
- React & Next.js
- TypeScript
- Redux
- Tailwind CSS
- React Native
Backend
- Node.js
- C#
- SQL & NoSQL
- REST APIs
- Azure
Featured Projects
Here are some of the projects I've worked on that demonstrate my technical expertise and problem-solving skills.
Built with React, Node.js, and MongoDB. Features include payment processing, user authentication, and admin dashboard.
Interactive dashboard for healthcare data analysis using D3.js, Python backend, and complex data processing algorithms.
React Native application with offline capability, cloud sync, and intuitive UX design for personal and team productivity.
Professional Experience
2021 - Present
Kassavirtanen Oy
Full-stack Software Developer
- Tech stack: React, .NET, SQL, Azure. Built and maintained 4 secure in -house financial products with React, .NET, and SQL, reducing bug- related support tickets by 40 %.
- Developed REST APIs in .NET used by 5 internal applications, ensuring consistent data handling and reducing duplicate logic.
- Modernized the codebase by upgrading outdated packages, refactoring modules, and standardizing dependencies, resulting in a 35 % faster response time and enhanced stability.
- Maintained and published a React Native app to Google Play Store and Apple App Store, reaching 1k + installs.
- Conducted comprehensive code reviews and facilitated technical roundtable discussions, leading to a 20 % decrease in bugs reported post - release and fostering collaborative problem - solving among development team members.
- Provided one - on - one mentorship to 10 + junior developers, resulting in a 25 % improvement in their technical skill assessments and enabling successful promotion of 3 team members within six months.
Sep 2019 - Oct 2020
Reactron Technologies Ltd
Frontend | Mobile Developer
- Tech stack: React, React Native, NodeJs, NextJs, TypeScript.
- Delivered pixel-perfect UIs for 6+ client projects, improving usability and achieving cross-browser/device consistency with less than 2% defect rate in QA.
- Partnered with UX/UI designers to convert wireframes into production-ready solutions, shortening feedback loops and accelerating feature delivery.
- Worked together with CTO and senior developers to ensure smooth MVPs shipping.
- Created a reusable component library and form templates, reducing duplicated code by 25% and increasing frontend maintainability.
- Worked with microservice-based architecture and cloud-native solutions, enabling horizontal scaling and increasing application uptime to 99.9%.
- Collaborated in peer reviews and debugging sessions, improving code quality and accelerating issue resolution time by 33%.
Get In Touch
I'm always interested in new opportunities and interesting projects. Let's talk about how we can work together.