Search Engine Optimization (SEO)
Keyword research, on-page optimization, and content planning to improve search visibility.
Personal portfolio
App Developer, Digital Marketer & SEO Specialist
Alamgir Hossain
Ridoy.
I help businesses improve their online visibility and connect with the right audiences through SEO and digital marketing. I also build practical applications that turn ideas into useful digital experiences.
ALAMGIR HOSSAIN RIDOY
AHR.
SEARCH. STRATEGY. CONNECTION.A personal perspective01 / AHR
Search. Strategy. Connection.Discover more
01About me
The person behind the work.
I’m Alamgir Hossain Ridoy, a Digital Marketer, SEO Specialist, and App Developer based in Bangladesh.
My work focuses on SEO, email marketing, and lead generation—helping businesses strengthen their online presence, reach relevant audiences, and build meaningful customer relationships. I approach each project with thoughtful planning, attention to detail, and a commitment to continuous improvement.
Alongside marketing, I develop applications and explore how technology can solve everyday problems. My interests in software development and research bring a technical perspective to my work and encourage me to keep learning and building.
This portfolio brings together my marketing work, applications, research, and professional journey. Across everything I do, I value clear communication, practical solutions, and work that serves a real purpose. Alongside digital marketing and application development, I contribute to academic research in computing and technology. My work includes research papers and conference presentations, reflecting my interest in investigating practical problems, evaluating approaches, and communicating findings clearly. This research experience adds an analytical perspective to my professional work and supports my continued learning.
Based in Dhaka, Bangladesh
02The portfolio
Skills & tools
01
Email Marketing
Email campaign planning and targeted messaging to connect businesses with relevant audiences.
Lead Generation
Prospect research and organized lead lists tailored to business goals and target markets.
Android App Development
Developing practical Android applications with clear interfaces using Java and Android Studio.
Firebase
Integrating user authentication, cloud databases, and file storage into Android applications.
Java
Building Android application features, handling user interactions, and implementing application logic.
03Services
A considered approach to digital.
Search engine optimization
A thoughtful approach to search visibility, from the structure of a website to the content people find.
Digital marketing
Connecting the right message with the right audience through a clear, considered digital strategy.
Email marketing
Relevant email communication that starts with an understanding of the people on the other side.
Lead generation
An intentional approach to finding and understanding potential customers for a business.
Mobile Application
I build Android applications with intuitive interfaces and practical features, turning ideas into useful mobile experiences through thoughtful design and reliable functionality.
04A closer look
Selected work
SpendTracker — Android Expense Tracking App
An Android expense tracking application built with Java and Firebase, combining personal finance records, account management, and customizable settings in one mobile experience.
Explore case studyAblation Driven CNN-BiLSTM-Attention Network With SHAP for ECG Arrhythmia Classification
An explainable deep learning study for ECG arrhythmia classification, combining a CNN-BiLSTM-Attention network with SHAP explanations, ablation analysis, and comparisons against five baseline models.
Explore case study05The portfolio
Apps & projects
SpendTracker — Android Expense Tracking App
An Android expense tracking application built with Java and Firebase, combining personal finance records, account management, and customizable settings in one mobile experience.
Explore projectUnsupervised Screening of Money Plant Leaf Health Anomalies Using a Convolutional Autoencoder
A computer vision study investigating convolutional autoencoders for unsupervised screening of visual health anomalies in money plant leaves.
Explore projectExplainable Machine Learning Framework for District-Level Crop Production Forecasting in Bangladesh
bangladesh-crop-production-forecasting
Explore projectMentalBERT Based Depression Detection from Social Media: Comparing Classical, Hybrid and Transformer Models
A comparative study of classical, hybrid, and transformer models for depression-related text classification using Twitter and Reddit posts, with fine-tuned MentalBERT achieving the strongest performance among the evaluated models.
Explore project06The portfolio
Research & publications
Ablation Driven CNN-BiLSTM-Attention Network With SHAP for ECG Arrhythmia Classification
An explainable deep learning study for ECG arrhythmia classification, combining a CNN-BiLSTM-Attention network with SHAP explanations, ablation analysis, and comparisons against five baseline models.
Explore publication07The portfolio
Education & experience
B.Sc. in Computer Science & Engineering
Undergraduate studies at Atish Dipankar University of Science & Technology, connecting academic learning with software development and machine learning research.
Freelance Digital Marketer & SEO Specialist
Freelance digital marketing and SEO experience since 2020, with an emphasis on understanding client requirements, clear communication, and organized project delivery.
Android Application Development
Practical Android development experience using Java, Android Studio, and Firebase, including the creation of SpendTracker, a personal finance application.
Academic Research Experience
Academic research experience in machine learning, deep learning, and explainable AI, covering healthcare-related classification, plant health screening, and agricultural forecasting.
08The portfolio
Achievements & certifications
SpendTracker Published on Google Play
Developed and published SpendTracker on Google Play, bringing a personal finance Android application from an initial idea through development and release.
View detailsResearch Accepted and Presented at IEEE BECITHCON 2026
Contributed to an ECG arrhythmia classification paper accepted at IEEE BECITHCON 2026 and completed an online presentation of the research.
Research Paper Accepted at ICEFronT 2026
Contributed to a research paper on MentalBERT-based depression-related text classification accepted at ICEFronT 2026 under Paper ID 792.
09Ideas & observations
Notes & updates
My Journey in Digital Marketing and SEO
A look at my freelancing journey since 2020 and how digital marketing, SEO, and technical learning shape my professional direction.
Read the noteBuilding SpendTracker: From Idea to Android App
The development journey behind SpendTracker, covering Android implementation, Firebase integration, practical features, and its release on Google Play.
Read the noteMy Experience Presenting at BECITHCON 2026
Reflections on presenting an ECG arrhythmia classification study online at IEEE BECITHCON 2026 and communicating technical research to an academic audience.
Read the noteHow I Approach Lead Generation
My approach to lead generation, from defining the target audience to researching relevant prospects and organizing information for outreach.
Read the noteBalancing CSE Studies, Freelancing, and Research
How my CSE studies, freelance work, application development, and academic research contribute to different parts of my learning and professional growth.
Read the note10Contact
Let’s start a conversation.
Have a project in mind, a question, or an idea to share? I’d love to hear from you.