Summary
Work History
Education
Skills
Projects
Timeline
Generic

Joel Lim

Summary

Positive and adaptable, equipped with foundational IT knowledge and technical skills. Familiar with programming languages and network fundamentals. Dedicated to leveraging these abilities to drive efficient solutions and support IT operations.

Work History

Kitchen Crew Member

Cajun on Wheels
  • Maintained clean, organized workspaces to ensure safety and productivity.
  • Collaborated with front-of-house staff to deliver smooth and efficient service.
  • Restocked supplies and prepared for peak periods to support operations.
  • Enhanced customer experience through attentive service and quick turnaround.

Waiter

Verandah Cafe
  • Managed high volume of customers during peak hours, maintaining prompt and efficient service.
  • Maintained a clean and organized dining area, contributing to a pleasant atmosphere for guests.
  • Quickly reset and cleaned up tables after customers left to enable speedy turnaround and guest flow.

Waiter

Skai Restaurant
  • Enhanced customer satisfaction by providing attentive service and anticipating guest needs.
  • Provided support during busy periods by assisting other servers in cleaning tables and resetting them quickly for incoming guests.
  • Folded napkins and prepared silverware sets to provide adequate supply for host station.
  • Managed high volume of customers during peak hours, maintaining prompt and efficient service.
  • Quickly reset and cleaned up tables after customers left to enable speedy turnaround and guest flow.

Education

Diploma in Infocomm & Security -

Nanyang Polytechnic
Singapore
05-2026

Skills

  • UI and UX design
  • API integration
  • Python
  • C#
  • HTML
  • Javascript
  • Teamwork and collaboration
  • Problem-solving abilities
  • Tailwind css
  • Sql
  • UIPath
  • Google dialogflow

Projects

GreenGrow – Smart Plant Monitoring System Security Project – Web Application Authentication System

Institution: Nanyang Polytechnic
Tech Stack: C#, MySQL, Windows Forms

  • Developed the Admin Interface using Windows Forms to monitor real-time sensor data and perform data filtering and historical trend analysis (temperature, light, and soil moisture).
  • Implemented role-based access control, secure admin login with password policy enforcement, and Two-Factor Authentication (2FA) via email OTP.
  • Designed and built multi-tenant admin management features to segregate organizational data and manage plant profiles securely.
  • Developed modules for automated email/SMS alerts, with tracking of notification success rates to improve reliability.
  • Created and maintained key MySQL database schemas including Alerts, Thresholds, Admin Profiles, and Daily Sensor Aggregates.

Security Project – Web Application Authentication System

Institution: Nanyang Polytechnic

Tech Stack: Python, Flask, MySQL, Flask-WTF, Flask-Mail, validate_email, reCAPTCHA API

  • Built a login alert system to notify users of account activity through email, enhancing account access transparency.
  • Integrated CAPTCHA (via Flask-WTF or reCAPTCHA API) to mitigate bot attacks and brute-force login attempts.
  • Developed username validation logic using Python regex to prevent SQL injection and XSS attacks.
  • Enforced strong password policies with requirements for length, complexity, and uniqueness.
  • Implemented a secure password reset feature using token-based links sent via email (using Flask-Mail or itsdangerous).
  • Configured HTTP Strict Transport Security (HSTS) headers to ensure all traffic uses secure HTTPS connections.
  • Validated email inputs by integrating libraries like validate_email and dnspython to verify domains and MX records.

Bicycle Rental Web Application
Tech Stack:
Python, MySQL
•Designed and developed core modules for Report Generation and Educational Resources sections of the website.
• Collaborated on implementing a user-friendly UI for browsing, renting, and managing bicycles online.
• Supported development of customer-facing features such as transaction tracking and chatbots assistance

Digitalizing MRT with IoT

Tech Stack: C#, ASP.NET Core, Azure IoT Hub, MSSQL, Computer Vision

  • Train & Depot Systems:
  • Developed Brake Pressure Monitoring with edge analytics and cloud alerts to enhance predictive maintenance and passenger safety.
  • Built Cabin Temperature Monitoring to detect HVAC anomalies and automatically adjust settings for commuter comfort.
  • Implemented RFID Entry/Exit Logging for depot automation, with immutable cloud-logged records to streamline train check-in/out.
  • Designed Depot Bay Monitoring using Computer Vision to track real-time bay occupancy and optimize turnaround assignments.
  • Created Train Management (CRUD system) enabling administrators to create, update, and delete train records with full audit trails.
  • Integrated alert management dashboards for train & depot anomalies, enabling centralized monitoring and faster incident response.
  • Participated in system architecture and design reviews, contributing to IoT sensor placement, Azure data flow, and database schema.

Timeline

Diploma in Infocomm & Security -

Nanyang Polytechnic

Kitchen Crew Member

Cajun on Wheels

Waiter

Verandah Cafe

Waiter

Skai Restaurant
Joel Lim