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Hello! I'm Arafat UI/UX Designer & Full-Stack Developer
A designer, developer, and published AI researcher based in Bangladesh. I build digital products that solve real problems, from user research and Figma prototypes to fully deployed WordPress sites, mobile apps, and AI-integrated solutions. Founder of BuildSign Digital, with international experience across design, development, and digital marketing.
To design and build digital products that solve real problems — combining user-centered design, clean code, and data-backed decisions to deliver experiences that work beautifully across every screen.
To become a globally recognized product designer and developer who bridges the gap between academic research and industry innovation — building ventures that create lasting impact.
To design and build digital products that solve real problems — combining user-centered design, clean code, and data-backed decisions to deliver experiences that work beautifully across every screen.
To become a globally recognized product designer and developer who bridges the gap between academic research and industry innovation — building ventures that create lasting impact.
The Best Results Are Born From Deep Research And Deliberate Execution
As a UI/UX Designer, Full-Stack Developer, and AI Researcher based in Bangladesh. With hands-on experience across design, development, WordPress, mobile apps, and digital marketing, I bring a rare combination of technical depth and creative thinking to every project I take on.
As the Founder and CEO of BuildSign Digital, I have worked with international clients to deliver products that are not just visually compelling but strategically built for performance and growth. My work is backed by published research in Springer and IEEE — making every solution I build both industry-ready and research-informed.
my skills and experience will help you
Founder & CEO
BuildSign
Leading a remote-first digital product agency delivering UI/UX design, full-stack development, WordPress development, mobile app development, and digital marketing solutions.
Level 1 Seller
Fiverr
Delivering freelance UI/UX design and web development services to international clients — recognized by Grameenphone Ltd. for creative and technical excellence.
Former UI/UX Designer
Nebulae-Soft
Designed user interfaces and conducted UX research for software products — translating user behavior data into clean, functional design systems and high-fidelity Figma prototypes.
Former Intern
Daffodil Int. University
Supported international collaboration initiatives, engaged with global academic networks, and represented the university across cross-border programs and events.
Let's Build Something That Actually Works
Research & Published Work
Peer-reviewed publications by K M Arafat Islam across Springer, IEEE Xplore, and international conferences — spanning AI, deep learning, medical imaging, and mental health detection.
Explainable Deep Neural Diagnostics: Vision Transformer-Based Retinal Disease Classification
3rd International Conference on Big Data, IoT and Machine Learning
Vision Transformer-driven retinal disease diagnostics with explainability features, published in Springer conference proceedings.
DeepCactus: A Transfer Learning-Driven CNN Model for Accurate Identification of Morphologically Overlapping Cactus Breeds
3rd International Conference on Big Data, IoT and Machine Learning
Transfer learning-based cactus breed identification study in Springer proceedings, focused on morphologically overlapping species.
A Transfer Learning-Based Ensemble Model for Automated Tea Leaf Disease Detection
Undergraduate Conference on Intelligent Computing and Systems (UCICS 2026) — Varendra University
Lightweight ensemble combining DenseNet121, Xception, and MobileNet achieved 98.64% accuracy for automated tea leaf disease detection.
The Role of Agile Methodology in Enhancing Product Management Efficiency: A Review
Undergraduate Conference on Intelligent Computing and Systems (UCICS 2026) — Varendra University
Systematic review (2023–2025) linking Agile practices with product efficiency outcomes including delivery speed, quality, and stakeholder alignment.
Resource-Efficient Deep Ensembles for Structured Retail Time-Series Forecasting: A Case Study on Walmart Sales
4th IEEE International Conference on Robotics, Automation, Artificial Intelligence and IoT (RAAICON 2025) — MIST, Dhaka
A parameter-efficient deep ensemble with shared MLP backbone achieves near-ensemble accuracy while training 4–5x faster with ~80% fewer parameters.
Ensemble Deep Learning for Automated Multiclass Classification of Gastrointestinal Disorders in Endoscopic Images
11th IEEE WIE Conference on Electrical and Computer Engineering (WIECON-ECE 2025) — Cox’s Bazar
Weighted ensemble of DeepLabV3+, U-Net, and YOLOv4 achieved ~98% accuracy for automated multiclass gastrointestinal disorder classification from endoscopic images.
Rank-Based Ensemble Learning for Early Detection of Mental Health Disorders in Private University Students
11th IEEE WIE Conference on Electrical and Computer Engineering (WIECON-ECE 2025) — Cox’s Bazar
Rank-based ensemble of CatBoost, SAINT, and NODE improves robustness and balanced prediction of stress, anxiety, and depression severity levels.
Early Detection of Mental Health Disorders Among Private University Students in Bangladesh Using Machine Learning-Based Behavioral Data Analysis
International Conference on Intelligent Data Analysis and Applications (IDAA 2025) — Daffodil International University
Undergraduate thesis analyzing behavioral survey data from 1,978 students — tuned CatBoost reached 99.79% accuracy with strong generalization.
Leadership & Community Involvement
Beyond academics and professional work, Arafat has actively led, organized, and contributed to student communities, tech clubs, and national outreach programs across Bangladesh.
Communication & Organizing Secretary
DIU Cyber Security Club
25+
EVENTS LED
6000+
STUDENTS REACHED
Led planning and execution of 25+ seminars, workshops, and competitions — reaching 6,000+ students through content writing, email communication, documentation, and social media coordination.
Public Relations Coordinator
IEEE DIU Student Branch
38+
EVENTS SUPPORTED
70–100
AVG PARTICIPANTS
Coordinated with IEEE branches across Bangladesh for event announcements and outreach — supported 38 events with 70–100 average participants per event.
Campus Ambassador
Creative IT Institute
40+
OUTREACH POSTS
150+
STUDENT LEADS
Promoted practical IT skill development opportunities to 150+ student leads through 40+ outreach posts — acting as a bridge between the institute and the student community.
Campus Hero
Programming Hero
20+
INSTITUTIONS
1000+
STUDENTS REACHED
Represented Daffodil International University and coordinated a nationwide Campus Hero network across 20+ institutions — reaching 1,000+ students.
EDGE Associate
The Business Standard
30+
ARTICLES PROMOTED
1000+
CAMPUS REACH
Supported news outreach and public relations activities — promoted 30+ articles with a campus reach of 1,000+ students across the network.
Campus Crew
Banglay IELTS & Immigration Centre
10+
SESSIONS SUPPORTED
200+
STUDENTS GUIDED
Promoted IELTS and study-abroad guidance sessions through campus networks — supported 10+ sessions and guided 200+ students.
What people say about K M Arafat Islam
Real feedback from clients, colleagues, and collaborators across platforms — reflecting the quality and impact of Arafat’s work.
K. M. Arafat Islam is an inspiring young founder with a clear vision and remarkable execution ability.
Through Buildsign, he has shown how design, technology, and customer empathy can come together to solve real business problems. His experience across UI/UX, Mobile App Development, Research and Analytics gives him a rare end-to-end understanding of product development.
K. M. Arafat has the discipline of an engineer and the creativity of a product leader. I’m confident he will make a meaningful impact wherever he goes.
It was a pleasure to guide Mr. K. M. Arafat Islam during his six-month Volunteer Internship Program (VIP) participation at the International Affairs Office of Daffodil International University. As Deputy Director of International Affairs, I had the opportunity to observe his work ethic and remarkable initiative.
Arafat proved effective communication skills and took ownership of tasks with confidence, whether it was organizing events, or office operations. He showed proactive attitude, bring creative ideas forward, and ensure completion.
I really hope that he will excel in any professional role he pursues. I highly recommend him to any organization looking for a talented and dedicated young professional.
Arafat also leads a small team of designers, which speaks to his initiative and leadership potential. I’m confident he’ll continue to refine his craft and make a strong mark in the UI/UX space.
Wishing him all the best in his journey ahead!
had the pleasure of working with K. M. Arafat Islam on optimizing my LinkedIn profile, and I must say, the experience was absolutely outstanding! He was incredibly professional, highly responsive, and completed my order in just 4 hours—truly impressive! His smart, efficient approach and friendly demeanor made the process seamless and enjoyable. The results exceeded my expectations, and I couldn’t be happier. I 100% recommend Arafat to anyone looking for top-notch LinkedIn optimization. An incredible talent and a chill personality—don’t hesitate to order!
I am writing to recommend K.M. Arafat Islam for the position of industry leader. I have had the pleasure of knowing him for 2 years, both as a university friend and as a colleague. During that time, I have been consistently impressed by his intelligence, work ethic, and leadership skills.
He is a brilliant individual with a deep understanding of the industry. He is also a quick learner and is always eager to take on new challenges. He is also a highly motivated and results-oriented individual. He sets high standards for himself and his team, and he is always looking for ways to improve.
In addition to his intellectual and professional skills, he is also a natural leader. He is able to inspire and motivate others with his passion and vision. He is also a great communicator and is able to build strong relationships with people from all walks of life.
Arafat is well known to me as a junior. I have known him for several years since he was admitted to Daffodil International University in Computer Science and Engineering. Arafat is responsible as a Public Relation Coordinator of IEEE DIU SB, 2024 team. As I am Student Advisor of this team, I have a good sense of his ability to interpret underlying principles and apply them to the problems that arose as a result of them.
Arafat is an active and energetic student I’ve seen. He worked as a volunteer at the BIM conference under my leadership, and I’ve seen he has the potential to take responsibility and fulfil it. He is honest, sincere and helpful in his activities. He is a very good team player and as well as a good team leader, he can manage any task assigned to him. To the best of my knowledge, throughout his time at this university, he did not engage in any activities that were subversive of the government or the law.
Arafat truly SHINES in app design, with a keen attention to detail and remarkable creativity that consistently exceeded expectations. Working with him was a pleasure, as he went above and beyond, cooperating seamlessly and delivering on time. Such an AWESOME guy to work with—definitely recommended!
I am pleased to write this recommendation for K.M. Arafat, a dedicated and talented individual with whom I have had the pleasure of working closely.
During our time working together, K.M. consistently demonstrated a high level of professionalism, attention to detail, and excellent communication skills. He is an expert in his field and has an exceptional ability to analyze complex problems and develop effective solutions. His strategic thinking and innovative ideas have proven to be invaluable to our team.
I have no doubt that K.M. will excel in any role he takes on and would be a valuable asset to any organization. I highly recommend him without hesitation and wish him all the best in his future endeavors.
K. M. Arafat Islam has demonstrated excellent communication skills, both written and verbal, and has a clear understanding of the importance of effective communication within a club setting. Arafat is organized and able to manage multiple tasks at once, and is always willing to go above and beyond to ensure that all members are informed and up-to-date on club activities and events. Additionally, Arafat has a positive attitude and is a team player, making them a valuable asset to club’s leadership team. I have no doubt that he will excel in this role and make a significant impact on any institution’s communication efforts.
Absolutely amazing work! The thumbnail design was eye-catching, professional, and perfectly optimized for high CTR. He understood my requirements, delivered on time, and made revisions until I was 100% satisfied. Highly recommend for anyone looking for high-quality YouTube thumbnails, engaging designs, and expert-level graphic work. Will definitely order again!
I highly recommend K.M. Arafat for any opportunity. He is a dedicated student with strong leadership and teamwork skills. He is also self-motivated and very much passionate about learning. I believe, he will be a valuable asset to any team.
Arafat is well known to me as a junior. I have known him for several years since he was admitted to Daffodil International University in Computer Science and Engineering. Arafat is responsible as a Public Relation Coordinator of IEEE DIU SB, 2024 team. As I am Student Advisor of this team, I have a good sense of his ability to interpret underlying principles and apply them to the problems that arose as a result of them.
Arafat is an active and energetic student I’ve seen. He worked as a volunteer at the BIM conference under my leadership, and I’ve seen he has the potential to take responsibility and fulfil it. He is honest, sincere and helpful in his activities. He is a very good team player and as well as a good team leader, he can manage any task assigned to him. To the best of my knowledge, throughout his time at this university, he did not engage in any activities that were subversive of the government or the law.
He is an extremely hardworking and dedicated individual who consistently goes above and beyond in his studies and projects.
Arafat is a quick learner and is always eager to take on new challenges. He has a great attention to detail and is able to think critically and analytically, which helped him to excel in group projects. He is also a great team player and was always willing to lend a helping hand to his classmates.
In addition to his academic achievements, Arafat is also a great communicator and has excellent leadership skills. He is always willing to share his knowledge and experience with others, and is a valuable asset to any team or organization.
I highly recommend Arafat for any future opportunities. He is a talented and motivated individual who will undoubtedly continue to excel in his studies and career.
K. M. Arafat Islam is an inspiring young founder with a clear vision and remarkable execution ability.
Through Buildsign, he has shown how design, technology, and customer empathy can come together to solve real business problems. His experience across UI/UX, Mobile App Development, Research and Analytics gives him a rare end-to-end understanding of product development.
K. M. Arafat has the discipline of an engineer and the creativity of a product leader. I’m confident he will make a meaningful impact wherever he goes.
I had the opportunity to have Arafat work on one of my projects for a short-term UI/UX design assignment. During this time, he brought creativity, enthusiasm, and a thoughtful approach to user experience and interface design. His ability to visualize user journeys and turn ideas into engaging designs was commendable.
Arafat also leads a small team of designers, which speaks to his initiative and leadership potential. I’m confident he’ll continue to refine his craft and make a strong mark in the UI/UX space.
Wishing him all the best in his journey ahead!
It was a pleasure to guide Mr. K. M. Arafat Islam during his six-month Volunteer Internship Program (VIP) participation at the International Affairs Office of Daffodil International University. As Deputy Director of International Affairs, I had the opportunity to observe his work ethic and remarkable initiative.
Arafat proved effective communication skills and took ownership of tasks with confidence, whether it was organizing events, or office operations. He showed proactive attitude, bring creative ideas forward, and ensure completion.
I really hope that he will excel in any professional role he pursues. I highly recommend him to any organization looking for a talented and dedicated young professional.
Arafat also leads a small team of designers, which speaks to his initiative and leadership potential. I’m confident he’ll continue to refine his craft and make a strong mark in the UI/UX space.
Wishing him all the best in his journey ahead!
Arafat is well known to me as a junior. I have known him for several years since he was admitted to Daffodil International University in Computer Science and Engineering. Arafat is responsible as a Public Relation Coordinator of IEEE DIU SB, 2024 team. As I am Student Advisor of this team, I have a good sense of his ability to interpret underlying principles and apply them to the problems that arose as a result of them.
Arafat is an active and energetic student I’ve seen. He worked as a volunteer at the BIM conference under my leadership, and I’ve seen he has the potential to take responsibility and fulfil it. He is honest, sincere and helpful in his activities. He is a very good team player and as well as a good team leader, he can manage any task assigned to him. To the best of my knowledge, throughout his time at this university, he did not engage in any activities that were subversive of the government or the law.
I am writing to recommend K.M. Arafat Islam for the position of industry leader. I have had the pleasure of knowing him for 2 years, both as a university friend and as a colleague. During that time, I have been consistently impressed by his intelligence, work ethic, and leadership skills.
He is a brilliant individual with a deep understanding of the industry. He is also a quick learner and is always eager to take on new challenges. He is also a highly motivated and results-oriented individual. He sets high standards for himself and his team, and he is always looking for ways to improve.
In addition to his intellectual and professional skills, he is also a natural leader. He is able to inspire and motivate others with his passion and vision. He is also a great communicator and is able to build strong relationships with people from all walks of life.
Arafat is well known to me as a junior. I have known him for several years since he was admitted to Daffodil International University in Computer Science and Engineering. Arafat is responsible as a Public Relation Coordinator of IEEE DIU SB, 2024 team. As I am Student Advisor of this team, I have a good sense of his ability to interpret underlying principles and apply them to the problems that arose as a result of them.
Arafat is an active and energetic student I’ve seen. He worked as a volunteer at the BIM conference under my leadership, and I’ve seen he has the potential to take responsibility and fulfil it. He is honest, sincere and helpful in his activities. He is a very good team player and as well as a good team leader, he can manage any task assigned to him. To the best of my knowledge, throughout his time at this university, he did not engage in any activities that were subversive of the government or the law.
I am pleased to write this recommendation for K.M. Arafat, a dedicated and talented individual with whom I have had the pleasure of working closely.
During our time working together, K.M. consistently demonstrated a high level of professionalism, attention to detail, and excellent communication skills. He is an expert in his field and has an exceptional ability to analyze complex problems and develop effective solutions. His strategic thinking and innovative ideas have proven to be invaluable to our team.
I have no doubt that K.M. will excel in any role he takes on and would be a valuable asset to any organization. I highly recommend him without hesitation and wish him all the best in his future endeavors.
K. M. Arafat Islam has demonstrated excellent communication skills, both written and verbal, and has a clear understanding of the importance of effective communication within a club setting. Arafat is organized and able to manage multiple tasks at once, and is always willing to go above and beyond to ensure that all members are informed and up-to-date on club activities and events. Additionally, Arafat has a positive attitude and is a team player, making them a valuable asset to club’s leadership team. I have no doubt that he will excel in this role and make a significant impact on any institution’s communication efforts.
I highly recommend K.M. Arafat for any opportunity. He is a dedicated student with strong leadership and teamwork skills. He is also self-motivated and very much passionate about learning. I believe, he will be a valuable asset to any team.
He is an extremely hardworking and dedicated individual who consistently goes above and beyond in his studies and projects.
Arafat is a quick learner and is always eager to take on new challenges. He has a great attention to detail and is able to think critically and analytically, which helped him to excel in group projects. He is also a great team player and was always willing to lend a helping hand to his classmates.
In addition to his academic achievements, Arafat is also a great communicator and has excellent leadership skills. He is always willing to share his knowledge and experience with others, and is a valuable asset to any team or organization.
I highly recommend Arafat for any future opportunities. He is a talented and motivated individual who will undoubtedly continue to excel in his studies and career.
had the pleasure of working with K. M. Arafat Islam on optimizing my LinkedIn profile, and I must say, the experience was absolutely outstanding! He was incredibly professional, highly responsive, and completed my order in just 4 hours—truly impressive! His smart, efficient approach and friendly demeanor made the process seamless and enjoyable. The results exceeded my expectations, and I couldn’t be happier. I 100% recommend Arafat to anyone looking for top-notch LinkedIn optimization. An incredible talent and a chill personality—don’t hesitate to order!
Arafat truly SHINES in app design, with a keen attention to detail and remarkable creativity that consistently exceeded expectations. Working with him was a pleasure, as he went above and beyond, cooperating seamlessly and delivering on time. Such an AWESOME guy to work with—definitely recommended!
Absolutely amazing work! The thumbnail design was eye-catching, professional, and perfectly optimized for high CTR. He understood my requirements, delivered on time, and made revisions until I was 100% satisfied. Highly recommend for anyone looking for high-quality YouTube thumbnails, engaging designs, and expert-level graphic work. Will definitely order again!