I am a seasoned full-stack web developer with 4+ years of proven expertise delivering high-performance, scalable web and mobile applications as both a freelancer and a full-time developer. I’m proficient in JavaScript, TypeScript, React.js, Next.js, Vue.js, and Tailwind CSS for front-end development, with strong back-end skills in Node.js, Express.js, and NestJS. I design responsive interfaces, implement RESTful and serverless APIs, and manage SQL and NoSQL databases. I’ve also worked with AWS Lambda, Supabase, and Docker for modern SaaS deployments. I’m passionate about delivering end-to-end, optimized solutions that elevate user experience, efficiency, and business growth. I collaborate directly with clients to analyze business needs, translate them into technical requirements, and deliver tailored solutions on deadline. I optimize application workflows to improve usability, scalability, and performance across devices, and I build reliable, user-centered web solutions that support growth. I enjoy mentoring teammates, driving code quality, and crafting maintainable architectures that stand the test of time.

Den Jan Sen Flores

I am a seasoned full-stack web developer with 4+ years of proven expertise delivering high-performance, scalable web and mobile applications as both a freelancer and a full-time developer. I’m proficient in JavaScript, TypeScript, React.js, Next.js, Vue.js, and Tailwind CSS for front-end development, with strong back-end skills in Node.js, Express.js, and NestJS. I design responsive interfaces, implement RESTful and serverless APIs, and manage SQL and NoSQL databases. I’ve also worked with AWS Lambda, Supabase, and Docker for modern SaaS deployments. I’m passionate about delivering end-to-end, optimized solutions that elevate user experience, efficiency, and business growth. I collaborate directly with clients to analyze business needs, translate them into technical requirements, and deliver tailored solutions on deadline. I optimize application workflows to improve usability, scalability, and performance across devices, and I build reliable, user-centered web solutions that support growth. I enjoy mentoring teammates, driving code quality, and crafting maintainable architectures that stand the test of time.

Available to hire

I am a seasoned full-stack web developer with 4+ years of proven expertise delivering high-performance, scalable web and mobile applications as both a freelancer and a full-time developer. I’m proficient in JavaScript, TypeScript, React.js, Next.js, Vue.js, and Tailwind CSS for front-end development, with strong back-end skills in Node.js, Express.js, and NestJS. I design responsive interfaces, implement RESTful and serverless APIs, and manage SQL and NoSQL databases. I’ve also worked with AWS Lambda, Supabase, and Docker for modern SaaS deployments. I’m passionate about delivering end-to-end, optimized solutions that elevate user experience, efficiency, and business growth.

I collaborate directly with clients to analyze business needs, translate them into technical requirements, and deliver tailored solutions on deadline. I optimize application workflows to improve usability, scalability, and performance across devices, and I build reliable, user-centered web solutions that support growth. I enjoy mentoring teammates, driving code quality, and crafting maintainable architectures that stand the test of time.

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Experience Level

Expert
Expert
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Expert
Expert
Expert
Expert
Expert
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Expert
Intermediate
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Language

English
Fluent
Tagalog
Fluent

Work Experience

Junior Software Engineer at Advanced World Solutions, Inc.
July 25, 2022 - July 24, 2023
Supported the Team Leader in task management and communication with the project supervisor ● Led front-end development, focusing on responsive design and Ul performance. ● Conducted design and code reviews with an emphasis on front-end best practices. ● Created detailed design specifications and test plans for front-end components. ● Analyzed existing systems and contributed to front-end feature development. ● Executed manual unit and integration tests on front-end elements. ● Resolved front-end bugs to ensure application reliability and performance.
Assistant Software Engineer at Advanced World Solutions, Inc.
July 24, 2023 - July 26, 2024
● Handled tasks across Web Client development, API integration, bug fixing, and feature enhancement ● Designed and implemented front-end software solutions based on requirements. ● Collaborated in daily team communications to ensure smooth project execution. ● Developed and executed automated test scripts for front-end components. ● Ensured efficient bug resolution and maintained high front-end quality standards.
Senior Assistant Software Engineer at Advanced World Solutions, Inc.
July 26, 2024 - January 24, 2025
● Directed the development and maintenance of core front-end frameworks, functionalities, and system operation. Streamlined workflows by creating innovative front-end utilities, optimizing client-side processes ● Resolved legacy front-end issues and aligned them with modern standards while implementing for smooth project execution. ● Created and executed automated unit tests for front-end components to preserve code integrity ● Facilitated effective team communication and swift issue resolution.
Senior Assistant Software Engineer at Advanced World Solutions, Inc.
July 1, 2024 - July 1, 2024
Built end-to-end web applications using React, Next.js, and Vue.js for front-end, with Node.js, Express.js, and NestJS for back-end. Implemented RESTful APIs, deployed SaaS solutions on cloud and serverless architectures, and integrated SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Firestore) databases. Enhanced front-end performance with responsive UI, collaborated with clients to translate business needs into technical requirements, and contributed to automated testing and DevOps workflows (GitHub Actions, Docker, CI/CD).
Assistant Software Engineer at Advanced World Solutions, Inc.
July 1, 2023 - July 1, 2023
Contributed to full-stack development using React, Next.js, Node.js, and Express.js; integrated RESTful APIs and serverless components; participated in SaaS deployments and CI/CD workflows with GitHub Actions and GitLab CI. Worked on database design and optimization across PostgreSQL, MySQL, and MongoDB.
Freelance Full-Stack Developer at Advanced World Solutions, Inc.
July 1, 2024 - July 1, 2024
Delivered end-to-end, optimized solutions; built interactive user interfaces; implemented secure back-end services with API integrations; collaborated with clients to translate business needs into technical requirements; delivered features using React, Next.js, Vue, Node.js, Express.js, and NestJS.
Junior Software Engineer at Advanced World Solutions, Inc.
July 1, 2022 - July 1, 2022
Developed software components; participated in code reviews; implemented features; supported maintenance of existing systems.
Intern at Advanced World Solutions, Inc.
December 1, 2020 - December 1, 2020
Supported Java development and OCA training; contributed to projects during internship.

Education

Bachelor of Science in Electronics Engineering at Technological University of the Philippines
June 11, 2018 - August 26, 2022
Bachelor of Science in Electronics Engineering Technology at University of the Philippines - Manila
January 1, 2018 - January 1, 2022
Bachelor of Science in Electronics Engineering Technology at University of the Philippines - Manila
January 11, 2030 - November 10, 2025

Qualifications

Certified Entry-Level JS Programmer
December 1, 2022 - October 7, 2025
Philippine IT Passport
March 1, 2023 - October 7, 2025
Oracle Certified Associate (OCA) Java Programmer
May 1, 2019 - November 10, 2025
OpenEDG Python Institute Certification
January 11, 2030 - November 10, 2025
IT Passport (Philippines)
January 11, 2030 - November 10, 2025

Industry Experience

Software & Internet, Professional Services, Computers & Electronics, Media & Entertainment, Education

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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