RATUL HASAN RUHAN

SOFTWARE ENGINEER

About

Highly innovative Software Engineer and Full-stack Mobile Architect with a proven track record of leading product lifecycles and developing high-performance, scalable mobile applications. Leverages expertise in Flutter, Kotlin, and AI to deliver impactful solutions, as demonstrated by multiple award-winning projects and successful contributions to global tech initiatives. Adept at transforming complex ideas into robust, user-centric software, driving technical vision and product strategy.

Work Experience

Software Engineer

Solution Explorer

Aug 2025 - Present

Dhaka, Dhaka, BD

Led the full lifecycle development and maintenance of diverse mobile applications, ensuring robust performance and user-centric design.

  • Architected and implemented scalable mobile application solutions, enhancing user experience and operational efficiency across platforms.
  • Managed end-to-end mobile development processes, from conceptualization to deployment, ensuring adherence to best practices and quality standards.
  • Collaborated with cross-functional teams to integrate new features and functionalities, contributing to a cohesive product ecosystem.

Founder & Full-stack Mobile Architect

Appibrium

May 2025 - Present

Dhaka, Dhaka, BD

Founded Appibrium, leading the full product lifecycle from ideation to deployment for high-performance, scalable mobile applications.

  • Spearheaded the development and successful launch of multiple mobile applications, driving technical vision and product strategy from inception.
  • Managed cross-functional teams, overseeing design, development, and deployment phases to ensure high-quality and scalable product delivery.
  • Implemented innovative architectural patterns to optimize application performance and user experience, resulting in robust and efficient solutions.

Flutter Developer

Bdcalling IT Ltd.

Apr 2025 - May 2025

Dhaka, Dhaka, BD

Developed real-time communication features for iOS and Android applications, integrating socket technology and audio/video calling capabilities.

  • Implemented real-time features including socket integration and audio/video calling functionalities, significantly enhancing user interaction across platforms.
  • Optimized cross-platform performance for iOS and Android applications, ensuring seamless user experience and reducing latency.
  • Collaborated effectively with development teams to deliver critical communication features within aggressive project timelines.

Mobile Application Developer

Emerge AI

Oct 2024 - Mar 2025

Dhaka, Dhaka, BD

Contributed to a global team in designing and developing innovative AI-based mobile solutions for mental well-being.

  • Collaborated with an international team to design and implement innovative mobile tech solutions, enhancing user engagement and product functionality.
  • Developed key features for the Emerge AI mental well-being app, directly contributing to its AI-driven capabilities and user experience.
  • Participated in agile development cycles, delivering high-quality code and contributing to feature enhancements within scheduled sprints.

Mobile Application Developer

Infolook

Sep 2023 - Aug 2024

Dhaka, Dhaka, BD

Designed and developed cross-platform mobile applications, contributing to the expansion of the company's digital product offerings.

  • Designed and developed robust cross-platform mobile applications, ensuring high performance and intuitive user interfaces.
  • Implemented new features and functionalities, improving application stability and user satisfaction by 15%.
  • Collaborated with product teams to translate requirements into technical specifications and deliver successful mobile solutions on schedule.

Android Application Developer

Spotlight Creative

Dec 2020 - Feb 2022

Dhaka, Dhaka, BD

Developed and maintained Android applications, contributing to the delivery of engaging mobile experiences for diverse users.

  • Developed and implemented core features for Android applications, enhancing user engagement and functionality.
  • Conducted rigorous testing and debugging to ensure application stability and optimal performance, reducing bug reports by 10%.
  • Collaborated with design and backend teams to integrate new features and deliver seamless user experiences.

Education

Computer Science & Engineering

Daffodil International University

Jan 2024 - Dec 2027

Dhaka, Dhaka, BD

Science

Shariatpur Govt. College

Jan 2021 - Jun 2023

Shariatpur, Dhaka, BD

Science

PTGD Govt. High School

Jan 2016 - Dec 2020

Shariatpur, Dhaka, BD

Volunteer

Volunteer

SPSB (Society for the Popularization of Science, Bangladesh)

Jan 2023 - Present

Dhaka, Dhaka, BD

Contributed to initiatives promoting science education and engagement within the community.

  • Organized and facilitated educational events, reaching over 100 students to foster interest in science.
  • Assisted in developing interactive materials and workshops, enhancing public understanding of scientific concepts.

Volunteer

BDOSN (Bangladesh Open Source Network)

Jan 2023 - Present

Dhaka, Dhaka, BD

Supported open-source projects and community events, fostering collaboration and knowledge sharing in technology.

  • Contributed to open-source projects, improving codebases and functionality for community-driven software.
  • Supported the organization of tech meetups and workshops, facilitating knowledge exchange among 50+ participants.

Projects

Emerge AI - Mental Well-being App

Oct 2024 - Mar 2025

An AI-based mental well-being application designed to enhance users' mental health and lifestyle through innovative features.

Ojogor - Beginner-Friendly Programming Language

Jan 2023 - Jan 2024

Built a custom interpreter in C to execute Ojogor code with an easy-to-understand syntax, targeting beginner programmers.

Junior Cambrian

Jan 2023 - Jan 2024

An educational application focused on enhancing the learning experience for children by making education fun and interactive.

Hello Chatkhil - An Medical App

Jan 2023 - Jan 2024

A medical application designed to provide health-related services and information.

Sydrix Ai - Smart study management Ai

Jan 2023 - Jan 2024

An AI-powered smart study management application aimed at optimizing learning processes and academic performance.

Awards

1st Place – Programming Contest

DIA ICT Fest

Jan 2025

Awarded first place in a competitive programming contest at DIA ICT Fest 2025, demonstrating exceptional problem-solving and coding skills under pressure.

1st Place - Project Showcasing

DIA ICT Fest

Jan 2025

Secured first place for innovative project showcasing at DIA ICT Fest 2025, highlighting strong development and presentation capabilities for a novel solution.

Regional Finalist - Startup World Cup

Startup World Cup

Jan 2025

Recognized as a regional finalist in the prestigious Startup World Cup 2025, acknowledging entrepreneurial vision and the potential impact of developed projects.

Cisco Certified Network Associate (CCNA)

Cisco

Jan 2023

Achieved CCNA certification, validating expertise in networking fundamentals, advanced network configurations, and troubleshooting.

Languages

English , Bengali

Skills

Mobile Development

  • Flutter
  • Kotlin
  • Xamarin
  • Android Development
  • iOS Development
  • Cross-Platform Development

Programming Languages

  • Python
  • C#
  • C

Database Management

  • SQL

Computer Science Fundamentals

  • Data Structures and Algorithms
  • Object-Oriented Programming

Networking & IoT

  • IoT & Networking
  • Socket Integration
  • Real-time Communication

Artificial Intelligence

  • AI-based Solutions
  • Machine Learning Concepts
  • Smart Systems

Product Development & Leadership

  • Product Lifecycle Management
  • Scalable Architectures
  • Technical Leadership
  • Team Collaboration
  • Agile Methodologies