Sherwen Mortis
Full-Stack Web & Mobile Developer | Freelancer
I build practical web and mobile applications for businesses and clients using React, TypeScript, Node.js, Flutter, and modern backend technologies.
About Me
Turning real business requirements into reliable and maintainable software
Full-Stack Web & Mobile Developer | Freelancer
I'm an Information Technology graduate and full-stack developer focused on building practical web and mobile systems. My experience includes POS systems, inventory management, real-time applications, REST APIs, relational databases, and Flutter mobile development. I enjoy turning real business requirements into reliable and maintainable software.
As a freelance developer, I partner directly with businesses and clients to design, engineer, and deploy tailored solutions—from retail cashier terminals and commodity trackers to municipal cloud platforms. Alongside software development, I also take on freelance video editing and promotional media projects for businesses and digital platforms.
- Location: Pagadian City, Philippines
- Phone: +63 963 131 0910
- Email: mortis.sherwen@gmail.com
- Education: BS Information Technology (2026)
- Freelance: Available for Hire
- Focus: Full-Stack & Business Systems
Technical Skills
Core technologies, frameworks, databases, and development workflows
Frontend Development
Responsive, accessible, and performant web interfaces
Backend Development
Robust server-side logic, real-time messaging, and API design
Databases & Storage
Relational schema design, normalization, queries, and optimization
Mobile Development
Cross-platform mobile applications with native device integration
Development Tools
Version control, API testing, and programming environments
Deployment & Platforms
Cloud hosting, web deployment, and environment configuration
AI-Assisted Development
Accelerating testing, refactoring, and development workflows
Currently Learning & Expanding
Continuous professional growth in modern frameworks and DevOps
What I Do
Software and web engineering services for businesses, clients, and teams
Web Application Development
Building responsive, fast, and secure web applications using React, TypeScript, Vite, and modern CSS frameworks.
Mobile App Development
Creating cross-platform mobile applications with Flutter and Dart, connecting directly to cloud APIs and offline storage.
REST APIs & Real-Time Backends
Engineering server-side REST APIs, WebSockets for instant live data sync, and JWT-secured authentication flows using Node.js.
Database Design & Optimization
Architecting normalized relational schemas with MySQL and PostgreSQL, writing optimized queries and ensuring data integrity.
POS & Inventory Management
Delivering custom point-of-sale solutions with barcode integration, inventory tracking, sales reporting, and receipt export.
UI/UX & Visual Design
Designing user-centric layouts, wireframes, and branding assets with Figma to translate client requirements into clean software.
Video Editing & Promotional Ads
Creating engaging promotional videos, advertisements, social media content, and branded visual materials for businesses and clients. Editing includes clean cuts, transitions, text animations, music synchronization, promotional layouts, and platform-ready exports.
Experience & Credentials
My professional developer background, education, and verified technical certifications
Professional Experience
Freelance Full-Stack Developer
2025 – Present
Custom Web Applications & Business Systems
- Design and develop custom web applications and business systems based on client requirements, including POS solutions, inventory management systems, responsive interfaces, REST APIs, databases, real-time functionality, and deployment.
- Engineered a custom retail Hardware Store POS platform featuring barcode scanning, live inventory depletion, sales auditing, and multi-format reports (Excel, PDF).
- Consult with clients directly to capture workflow bottlenecks, prototype solutions, and deploy reliable software to production environments.
Web & Mobile Developer (Contract)
June 2025 – May 2026
CENRO (Community Environment & Natural Resources Office)
- Developed and maintained web and mobile applications using React.js and Flutter for municipal waste monitoring.
- Integrated REST APIs, backend services, database structures, and role-based authentication modules across admin, driver, and citizen workflows.
- Conducted thorough end-to-end testing, bug fixing, and continuous deployment workflows on Vercel and Render.
- Collaborated closely with departmental stakeholders to refine operational dashboards and data visualization maps.
Freelance Video Editor
Freelance / Ongoing
Promotional Ads & Social Media Content
- Edit promotional advertisements and short-form video content for businesses, products, services, and social media campaigns.
- Produce polished videos using cuts, transitions, motion text, music synchronization, branding elements, and visual effects based on client requirements.
- Prepare videos in appropriate aspect ratios and formats for platforms such as Facebook, Instagram, TikTok, and other digital channels.
- Work directly with clients to transform raw footage, images, text, and promotional concepts into clear and engaging advertisements.
Education
Bachelor of Science in Information Technology
Graduating Class 2026
Josefina H. Cerilles State College
Core coursework: Software Engineering, Database Systems, Web & Mobile Development, Data Structures & Algorithms, Network Administration.
Certifications
User Experience Design: Discovering Thinking Framework
2025
Frameworks for user research, design thinking, information architecture, and interface usability.
Pixel Perfect: A Beginner's Journey to Graphic Design
2025
Visual hierarchy, color theory, typography, and professional asset preparation.
Introduction to Android Studio: A Hands-On Project for Game Logic
2025
Component lifecycles, event listeners, state handling, and interactive Android logic.
Introduction to SQL
2025
SoloLearn
Python Developer
2025
SoloLearn
Featured Projects
Selected full-stack applications and production projects
Hardware Store POS System
Full-stack point-of-sale and inventory management system developed for real hardware-store operations.
- Keyboard-first cashier checkout workflow
- Real-time inventory & stock ledger
- Hardware barcode scanner integration
- Customer credit / Utang tracking
Isra Hardware Trading Website
Responsive full-stack business website with interactive customer quotation chat, catalog browsing, search, and store information.
- Modern storefront & categorized inventory catalog
- Interactive customer chat assistant for quotes & stock inquiry
- Admin customer helpdesk & quotation desk with stock verification
- Embedded Google Maps store locator & counter pickup
CENRO Waste Tracker System
Municipal solid waste tracking, collection route visibility, and public citizen reporting system.
- Triple-role portal (Admin, Driver, Citizen)
- Interactive collection route dispatch mapping
- Mobile collection driver app (Flutter / Dart)
- Citizen reporting for missed collections & waste hotspots
Karenderya Inventory & Billing System
Native desktop billing and inventory tracking system built to eliminate order errors and ingredient waste in local canteen operations.
- Counter billing with instant change calculation
- Automatic raw stock ingredient deduction
- Menu, recipes, and category CRUD management
- End-of-day sales auditing & revenue reports
Creative Work
Video editing, promotional advertisements, graphic design, visual branding, and social media content.
Work in Action
A personal gallery of real-world client deployments, hardware diagnostics, build staging, and developer life.
CENRO System Walkthrough & Training
Guiding operational personnel through the CENRO Waste Tracker workflow, demonstrating the driver mobile application and administrative tools while validating how the system performs in an actual working environment.
On-Site Client Deployment
Deploying and validating the POS system in the client's actual store environment, testing cashier workflows, receipt printing, peripheral integration, and production configuration before daily operation.
Hardware Diagnostics & Maintenance
Performing hands-on hardware diagnostics and maintenance to identify component issues, restore reliable operation, and better understand the physical systems supporting software environments.
Development & System Engineering
Working through active software development, database design, debugging, and system integration as projects move from initial implementation toward a stable, production-ready solution.
Build Staging & Hardware Testing
Preparing and testing a POS deployment before installation, including production builds, terminal configuration, receipt printing, barcode equipment, and hardware integration.
Focused Development Session
Continuing application development through implementation, debugging, backend integration, database work, and code refinement while preparing features for testing and deployment.
Get in Touch
Have a software project, business system, website, mobile app, or promotional media project in mind? I'm available for freelance work, collaborations, and full-time opportunities.
Location
Pagadian City, Philippines