Hi, I'm Sayeem.
Creative & Interactive Full-Stack Developer 🚀
As a software engineer, my experitse lies in creating seamless and intuitive user experieces. I specialize in using cutting-edge technologies to produce high-quality applications.
About
Hello! I am Khandakar Sayeem, currently pursuing a Master of Computer Science at the University of Illinois Urbana-Champaign and holding a Bachelor of Science in Computer Science from The Pennsylvania State University. My expertise spans Python, JavaScript, React, Node.js, Java, and C++, showcased through the technical projects featured in this portfolio. Alongside engineering, I bring real-world experience in sales and technical support as a Technical Support Analyst, where I have developed strong communication, troubleshooting, and customer-focused problem-solving skills. I am deeply passionate about programming and technology, driven by curiosity and a commitment to tackling complex challenges. My focus is algorithms and software engineering, and I am always pushing to sharpen my skills and build solutions that are both innovative and practical.
- JavaScript (ES6+)
- HTML / CSS
- React
- SQL
- Node.js
- Python
- Data Migration
- Java
- Linux
Education
Skills
- HTML
- CSS
- JavaScript
- React Native
- NodeJS
- php
- Python
- C
- C++
- Java
- Linux
- SQL
- AWS
- Kotlin
- GiT
- Apache
- WireShark
- Prolog
- Microsoft Office
- Adobe Products
- PCB Designing
- Data Structures
Some Things I've Built
The Advisor WebTool
The inception of "The Adviser" at Penn State Brandywine was driven by a multifaceted motivation, deeply anchored in addressing a critical and prevalent challenge in higher education: the complexity of course selection, particularly in the realm of General Education (GenEd) courses.
- Flask
- HTML/CSS/JS
- MySQL
- Google DialogFlow
- Pandas
- PlanetScale
Work Experience
Best Buy
Shift Lead Supervisor - 2024• Overseeing specific teams and shifts to ensure efficient daily operations and customer satisfaction by supervising staff, managing operational tasks like opening/closing the store and handling inventory, providing guidance and coaching to employees, resolving customer issues, and communicating with upper management to meet goals. Recognized for sustained excellence as the top Sales Advisor in the store, delivering results that consistently exceeded sales goals and customer expectations, with performance ranking within the top 150 sales professionals across Best Buy nationally.
Customer Service
Microsoft 365
Sales Management
SW Digital A11y
Internship - 2023• I am currently interning at SW Digital A1y, where I am gaining practical experience in Digital QA solutions, focusing on accessibility testing across web and mobile platforms. I am involved in hands-on training with both manual and automated testing tools, learning to ensure software accessibility and compliance. This role allows me to develop my skills in real-world scenarios, preparing me for a future career in QA software engineering.
Accessibility Testing
QA Solutions
Manual Testing
Automated Testing Tools
Software Accessibility
Compliance
Web Platforms
Mobile Platforms
User Experience (UX)
Quality Assurance
End Point Corporation
Production Support Analyst• Maintained web applications using Java, XHTML, and Postgres to support the EpiTrax project; a group of open-source software projects developed for public healthcare disease tracking, lab messaging, and health reporting. Provided ongoing support and maintenance for the application for 3 different US states while maintaining strong communication with the development team and end users to effectively manage support requests and ensure the ongoing success of the application.
Manual Testing
Automated Testing Tools
IT Troubleshoot
Compliance
Web Platforms
Rahman Financial Services
IT Analyst Intern - 2022- 2023• As an intern at Rahman Financial Services, I assisted with tax return filings and immigration paperwork, ensuring accuracy and compliance with regulatory standards. I supported client consultations, prepared essential documents, and utilized financial software to manage data, enhancing my expertise in financial and legal processes.
Tax Return Filings
Immigration Paperwork
Regulatory Compliance
Financial Software
Data Management
Client Consultations
Document Preparation
Financial Analysis
Legal Documentation
Compliance Standards
Quantum Works Studio
Freelancing - 2022 - 2024• Orchestrated and directed a team of 4 skilled professionals in the comprehensive development lifecycle of "BattleBlitz," a captivating multiplayer game, from initial concept to successful launch.
• Demonstrated swift adaptability, acquiring proficiency in novel tools, technologies, and programming languages to address the ever-evolving demands of the project.
• Amplified player engagement by a remarkable 30% through the introduction of captivating in-game events and fiercely competitive modules.
Vairo Library
IT Support Analyst - 2022 - 2024• Experienced library assistant with a background in Vairo Library. Skilled in managing library operations and assisting patrons. Dedicated to providing excellent service and maintaining an organized library environment. With 2 years of experience in library services.
• Handled check-in and check-out process of library books and materials at circulation desk.
• Organized and maintained library inventory, ensuring proper shelving and categorization of materials.
Library Services
Resource Cataloging
Circulation Systems
Customer Service
Research Assistance
Information Management
Educational Support
Shelving Books
Academic Resources
Technical Support
Home Depot
Order Fulfillment Associate - 2021 - 2022• Processed and fulfilled customer orders accurately and efficiently to ensure timely delivery.
• Operated warehouse equipment, including forklifts and pallet jacks, to move and organize inventory.
• Utilized warehouse management systems (WMS) and software to track orders and update inventory records.
• Addressed and resolved issues related to order discrepancies, damaged goods, and shipping delays.
Order Fulfillment
Customer Service
Inventory Management
Payment Processing
Retail Operations
Online Orders
Product Delivery
Store Management
Customer Satisfaction
Sales Support
Blue Apple Cafe
General Student Technician - 2020 - 2022• Prepared and served a variety of food and beverage items to students, faculty, and staff in a fast-paced campus cafe environment.
• Maintained high standards of cleanliness and sanitation in all food preparation and service areas.
• Engaged with customers to create a welcoming and inclusive atmosphere, promoting a positive dining experience on campus.
• Provided excellent customer service by addressing inquiries, taking orders, and ensuring customer satisfaction.
Food Service Management
Technical Support
Equipment Maintenance
Cash Handling
Point-of-Sale Systems
Customer Interaction
Food Preparation
Operational Efficiency
Kitchen Operations
Team Collaboration