A personal portfolio

Hi, It's
SAIDUJJAMAN

COMPUTER SCIENCE · ENTREPRENEURSHIP · WEB DEVELOPMENT

I build useful digital experiences and businesses that serve people. A Computer Science graduate connecting technology, design and practical problem-solving.

Explore my work View credentials

Sylhet, BangladeshLet’s connect

Ideas into useful things.

Curious by nature.

3.93 / 4.00BSc Computer Science · CGPA

3Founded web projects

62Earned Credly badges

C1 AdvancedEnglishScore · Score 505

01 / About me

A builder with
a business mind.

I’m Md Saidujjaman, a Computer Science graduate from the University of the People and an entrepreneur based in Sylhet, Bangladesh.

My work brings together website development, graphic design, customer communication and business operations. I’ve founded three web platforms and two local businesses, turning everyday needs into practical services.

I keep learning across artificial intelligence, data science and cybersecurity, with a growing collection of credentials that you can explore and verify below.

Digital innovationResearch & information analysisBusiness development

02 / Selected work

Built with purpose.

Three platforms I founded to make information and everyday digital tasks more accessible.

PROJECT / 01

CorrectionCopy

Founder, Owner & Developer

An online toolkit for PDF processing, image editing, file conversion and document creation.

Visit project

PROJECT / 02

LatestJobCircular

Founder & Developer

A Bangladesh-focused platform for job circulars, application deadlines and recruitment updates.

Visit project

PROJECT / 03

PhoneSpecX

Founder & Web Designer

Smartphone specifications, prices, reviews and side-by-side comparisons in one place.

Visit project

03 / Skills & learning

Connecting the disciplines.

Practical experience in building and running services, supported by technical study.

Web & software

Website development & web design
JavaScript & back-end development
Node.js & MongoDB coursework
WordPress & SEO
Software engineering

AI & data

AI tools & prompt engineering
AI workflow optimization
AI agents & MCP fundamentals
Python, SQL & data visualization
Applied data science & machine learning

Security & IT

Cybersecurity foundations
System & network security
Risk, compliance & data privacy
Incident response & forensics
Critical infrastructure protection

Business & design

Business operations & financial oversight
Team supervision & inventory management
Client communication & customer service
Graphic design & digital marketing
Research & information analysis

Skills reflect my professional experience and areas covered by completed learning. The credential collection provides the associated course and badge evidence.

04 / Additional knowledge

Computer hardware
& operating systems.

I understand how computer components work together and approach everyday hardware and operating-system issues step by step.

INSIDE THE COMPUTERSelect a component

The computer’s processor

The CPU carries out instructions and calculations. Its workload affects how quickly the computer responds to tasks.

Memory for active tasks

RAM holds the information that running applications need right now. Available memory helps the computer handle several tasks at once.

A home for software & files

Storage keeps the operating system, applications and files. Available space and performance affect startup, loading and everyday use.

Stable power. Healthy temperatures.

The power supply delivers electricity to the components, while cooling removes heat. Both support stable computer operation.

Operating systemConnects the hardware, applications and user.

Hardware fundamentals

Understanding the parts behind everyday performance.

CPU, RAM, storage, motherboard and power supply
How the main components work together
Common ports, cables and connections
Cooling and basic upgrade compatibility

Windows & software

Working with the system that keeps applications running.

Windows settings, files and user accounts
Startup, update and application issues
Device status and drivers in Device Manager
Software installation and configuration

Diagnosis & maintenance

Narrowing down problems through careful checks.

Hardware and software causes behind symptoms
Task Manager and system resource use
Storage space, heat and system behaviour
Routine updates, backups and maintenance

Devices & connectivity

Keeping the computer connected to everyday equipment.

Monitors, keyboards, mice and printers
USB devices, adapters and display cables
Basic Wi-Fi and Ethernet settings
Checking cables, ports and connected devices

My troubleshooting approach

A clear process, from the first symptom to a working result.

01
Understand
Identify the symptom and what changed.
02
Check basics
Review power, cables, settings and errors.
03
Isolate
Narrow the cause, one change at a time.
04
Apply a fix
Make a suitable adjustment or update.
05
Test again
Repeat the task and confirm the result.

05 / Experience & leadership

From ideas to operations.

Building businesses, leading teams and working directly with customers.

Jan 2025 — Present

Creative Corner

Founder & Owner

Founded a business offering computer and online services, printing and international courier sub-agent operations. Lead a five-person team and oversee finances, service quality, client delivery and daily operations.

Aug 2023 — Present

Asha Enterprise

Founder & Owner

Founded a business providing stationery, electrical products, printing, and computer and online services. Lead a five-person team and manage inventory, customer service and daily operations.

Mar 2022 — Jul 2024

Take a Trip Holiday

Senior Consultant & Graphic Designer

Advised clients on travel services and managed customer communication. Created promotional materials and coordinated design deliverables and deadlines.

06 / Education

A strong foundation.

Academic preparation in Computer Science, with earlier study in Science.

19 August 2026 · Summa Cum Laude

Bachelor of Science
in Computer Science

University of the People

Accredited by the WASC Senior College and University Commission (WSCUC), an institutional accreditor recognized by the U.S. Department of Education.

Pasadena, California, USA Former university location

Current administrative offices: Wilmington, Delaware, USA.

3.93 / 4.00CUMULATIVE GPA

2018

Higher Secondary Certificate

Zakiganj Government College , Sylhet
Science · GPA 3.17

2016

Secondary School Certificate

Zakiganj Government High School , Sylhet
GPA 3.83

28 August 2016 · 3-month training

Diploma in Software Application

Postal Academy, Rajshahi · Zakiganj Post e-Center
Certificate ID: PEC:A0012725

Academic certificates and transcripts are kept private.

Advanced English

British Council EnglishScore · Core Skills
Overall score: 505 · 23 August 2025

View result & verification

Academic documentation

University of the People
Medium of instruction certificate listed in my CV; available on request.

Request information

07 / Credentials

Learning, with evidence.

Explore my badges and completed learning. Verify credentials through issuer records; supporting documents are kept private.

108 unique credentials62 Credly badges50 certificate records

108 credentialsIssuer verification links

Badge + certificate

IBM SkillsBuild Cybersecurity Certificate

IBM

Credly badge ID: d4320b83-2198-4533-ae94-e65f0dd819a8

Hi, It's SAIDUJJAMAN

A builder witha business mind.

Built with purpose.

CorrectionCopy

LatestJobCircular

PhoneSpecX

Connecting the disciplines.

Web & software

AI & data

Security & IT

Business & design

Computer hardware& operating systems.

The computer’s processor

Memory for active tasks

A home for software & files

Stable power. Healthy temperatures.

Hardware fundamentals

Windows & software

Diagnosis & maintenance

Devices & connectivity

My troubleshooting approach

From ideas to operations.

Creative Corner

Asha Enterprise

Take a Trip Holiday

A strong foundation.

Bachelor of Sciencein Computer Science

Higher Secondary Certificate

Secondary School Certificate

Diploma in Software Application

Advanced English

Academic documentation

Learning, with evidence.

IBM SkillsBuild Cybersecurity Certificate

IBM Full Stack Software Developer Professional Certificate (V5)

Applied Data Science Lab

IBM Data Science Professional Certificate (V3)

Meta Full-Stack Engineer Certificate

MCP Fundamentals for Building AI Agents

AI Agents Fundamentals, v2

Advanced Prompt Engineering with ChatGPT

Artificial Intelligence Fundamentals

OPSWAT Introduction to Critical Infrastructure Protection (ICIP)

EnglishScore Core Skills - CEFR C1 Advanced

IBM JavaScript Backend Developer

Claude Code 101

Incident Response and Systems Forensics

Security Operations and Management

Cloud Security

System and Network Security

Vulnerability Management

Governance, Risk, Compliance, and Data Privacy

Emotional Intelligence in Teamwork: Strengthening Workplace Relationships

Mastering Prompting

AI and Automation: How Emerging Technologies Are Shaping the Workplace

Get started using Google Analytics

The Psychology of Teamwork: Understanding Group Dynamics for Success

Engineering for New Energy Job Simulation - APA

Audit Simulation - PwC

Applied Data Science Capstone

Generative AI Essentials for Data Science

Branding & Design Job Simulation

Data Labeling Job Simulation

JavaScript Back-end Development Capstone

EY Technology Risk Virtual Job Simulation

Intermediate Back-end Development: Node & MongoDB

Meta Front-End Developer Professional Certificate(v.1)

Introduction to Sociology (SOC1010)

Data Analysis with Python

Data Visualization with Python

Databases and SQL for Data Science

Machine Learning with Python (V2)

Art History I (ARTHIST1001)

Data Science Methodology

Python Project for Data Science

Tools for Data Science V2

Data Science Orientation

Google IT Support Professional Certificate(v.3)

Meta Database Engineer Professional Certificate(v.1)

Meta Back-End Developer Professional Certificate(v.1)

Hi, It's
SAIDUJJAMAN

A builder with
a business mind.

Computer hardware
& operating systems.

Bachelor of Science
in Computer Science