Hardware POS System
Freelance Project Lead
Lead a five-person team designing a hardware POS system with barcode scanning, customer displays, role-based access, and offline-ready records.
Project LeadershipSupabase RLSGit WorkflowPOS
Open to work & internships
Hello, I'm
Paramet Dennis Hoke Arrington IV
Software Intern
Fourth-year Computer Engineering student with hands-on experience leading freelance software projects across full-stack web development, POS systems, WordPress, and embedded IoT.
7
Main Projects
8
Soft Skills
5
Skill Groups
02 · ABOUT ME
About Me
I'm a fourth-year Computer Engineering student at Rajamangala University of Technology Isan, Khon Kaen Campus, with a cumulative GPA of 3.17. My freelance experience includes leading teams and building POS systems, full-stack landing pages, WordPress solutions, and embedded IoT projects.
Role
Software Intern
Education
B.Eng. Computer Engineering, 4th Year
GPA
3.17
Location
Khon Kaen, Thailand
paramet.arrington4@gmail.com
Languages
Thai (Native), English (CEFR B1)
Skills
Programming Languages
CJavaPythonHTMLCSSJavaScript
Frameworks
Next.jsTailwind CSSReactSpring BootVite
Development Tools
VS CodeGitGitHubVercelPostmanXAMPPFigma
Backend & Data
SupabaseSupabase RLSCRM IntegrationOffline-Ready Data
Hardware & Embedded
ESP32ArduinoSensors IntegrationEmbedded Systems
03 · WORK EXPERIENCE
Work Experience
Freelance, production development, and service experience that shaped how I work.
TRP Powers Plus
Freelance Tech Lead & Full-Stack Developer
Led a full-stack landing page from Figma to production, integrating Supabase CRM and Git quality workflows to improve performance and conversion.
RMUTI Mechanical Engineering
Freelance WordPress Developer & UI Designer
Gathered requirements from faculty, designed the UI/UX and content structure, then delivered a custom WordPress site on schedule.
7-Eleven
Part-Time Food Delivery Staff
Delivered orders under strict schedules, served diverse customers, supported branch operations, and assisted with preliminary stock preparation.
Time ManagementCustomer ServiceOperations
04 · PROJECTS
Projects
Things I've built or am currently working on.
EME RMUTI Department WebsitePublic
CompletedProject Lead · WordPress Developer & UI Designer · March 2025 – April 2025
Built and launched a WordPress site for RMUTI Mechanical Engineering after gathering requirements and designing its UI/UX and content structure.
WordPressElementor pluginHTML+1
HTML
Completed
Built a real-time warehouse monitor by connecting ESP32 sensors to a React dashboard, enabling fast inventory visibility with low data latency.
ReactESP32Sensors Integration+1
React
Weather Web FrontendPublic
CompletedBuilt a city weather search using OpenWeatherMap API, showing temperature, humidity, conditions, and rotating backgrounds in real time.
HTMLCSSJavaScript+1
Portfolio D-KubPublic
CompletedBuilt a modern responsive portfolio that organizes project highlights, professional details, and contact channels into a focused layout.
HTMLCSSJavaScript
Mind-PaintPublic
CompletedBuilt an interactive React drawing app with HTML5 Canvas for responsive rendering and Local Storage for preserving user artwork.
ReactHTML5 Canvas APILocal Storage
React
Hardware POS SystemPrivate
In ProgressProject Lead · May 2026 – Present
Lead a five-person team building a hardware POS with barcode scanning, customer displays, role-based Supabase RLS, and offline-ready logs.
SupabaseSupabase RLSBarcode Scanning+2
TRP Powers Plus Landing PagePublic
CompletedTech Lead & Full-Stack Developer · May 2026 – July 2026
Led a full-stack landing page from Figma to launch, integrating Supabase CRM and Git quality workflows to improve performance and conversion.
SupabaseCRM IntegrationFigma+1
05 · SOFT SKILL
Soft Skill
Core interpersonal skills I use in projects, plus hobbies that keep me creative.
Territorial Defense Student Battalion Commander
StrongDeveloped advanced leadership, discipline, and endurance while overseeing nearly 200 cadets through respectful, calm, and approachable command.
Advanced Leadership
Territorial Defense Student Company Commander
StrongStrengthened leadership, discipline, and endurance while coordinating two platoons and supervising approximately 100 cadets.
Unit Coordination
Territorial Defense Student Platoon Leader
StrongEarned the trust of peers and instructors to lead approximately 50 cadets, building cooperation, respect, and unity through calm leadership.
Trust & Unity
Autonomous Vision Robot Competition
StrongCompeted at the 17th RMUTI National Academic Fair, building an autonomous mobile robot with a vision-guided arm and solving hardware and software problems as a team.
Robotics · Computer Vision
National Skills Competition #31 — Cybersecurity
StrongPassed the online round as one of 7 Northeastern teams, then represented the region at the national final in the cybersecurity team category under time pressure.
Regional finalist → National
INNOBIZ IGNITE — Business Plan Competition
StrongTeam CARELINK placed in the Top 4 and won a consolation prize, working across Engineering, Marketing, and Education to move an innovation toward market.
Top 4 · Consolation Prize
WordPress Training Workshop
StrongServed as an assistant instructor for a WordPress workshop, training faculty and staff and pairing technical skill with clear teaching and teamwork.
Technical Training
Wai Khru Ceremony — Class Representative
StrongRepresented the Computer Engineering class as pahn bearer; the team placed 2nd in the pahn-decorating contest, blending teamwork with representation.
2nd place · Representation
06 · UPDATES
Latest Updates
What I'm building, learning, and shipping right now.
- Competition
Team CARELINK — Top 4 at INNOBIZ IGNITE business plan competition
- Competition
Regional cybersecurity finalist at National Skills Competition #31, on to the national final
- Learning
Studying "AI for Solopreneurs" (RMUTI ECP)
- Update
Refreshed this portfolio — new branding, motion, and ambient UI
- Freelance
Leading a 5-person team building a hardware POS system
- Thesis
Building an IoT smart-watch thesis (ESP32 / Arduino)
- Launch
Delivered the TRP Powers Plus landing page to production
- Leadership
Completed Territorial Defense training as Battalion Commander (~200 cadets)
- Launch
Launched the RMUTI Mechanical Engineering department website
07 · CONTACT
Contact
Want to work together or just say hi? Feel free to reach out!