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Md Sohail Mahmud

@sohailmahmud

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Senior Flutter developer building scalable cross-platform mobile apps.

Bangladesh

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What I'm looking for

I seek roles building scalable cross-platform mobile products (Flutter) with strong CI/CD, testing and real-time features, collaborative Agile teams, mentorship opportunities and measurable impact on performance and user experience.

I am a senior software engineer specializing in Flutter and Dart, focused on building scalable, maintainable cross-platform mobile applications using Clean Architecture, MVVM, dependency injection and advanced state management. I have led end-to-end development for marketplace, healthcare and enterprise apps, integrated real-time features with WebSockets, optimized CI/CD pipelines, and mentored junior engineers to improve delivery and code quality.

My background spans mobile, backend and cloud technologies including .NET Core, Firebase, AWS/GCP, REST/GraphQL APIs and multiple databases, with measurable achievements such as reducing API calls and build time, cutting crash rates, and improving performance and deployment reliability. I deliver pixel-perfect UI from Figma, enforce testing and automation best practices, and thrive in Agile teams focused on user-first product outcomes.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Hurraayy Limited

Jan 2024 - Present (2 years 5 months)

Led development of a cross-platform home-sharing marketplace app, reducing build time by 25% and cutting API calls by 30% through modular UI components, Hive caching and WebSocket real-time updates.

Dart Flutter Firebase Hive WebSockets GCP)REST APIs CI CD GCP

Senior Software Engineer

ProHealth Limited

Apr 2022 - Dec 2023 (1 year 8 months)

Built and optimized cross-platform Flutter apps scaling to 10,000+ users, reduced crashes by 30%, led CI/CD and mentored 4 junior developers while implementing low-latency WebSocket chat (<200ms).

Dart Flutter Firebase SQLite WebSockets WebRTC AWS REST APIs CI CD

Software Engineer

Extreme Solutions

Nov 2020 - Feb 2022 (1 year 3 months)

Designed and deployed cross-platform Flutter apps reaching 50,000+ users, improved delivery speed by 25% and reduced production bugs by 30% through design patterns and code quality improvements.

Dart Flutter Firebase GCP)REST APIs Bitrise Docker CI CD GCP

Software Engineer

Cynergy Solutions, LLC

Aug 2018 - Oct 2020 (2 years 2 months)

Developed .NET Core business applications with predictive time-series analysis, migrated data to interactive dashboards doubling response speed and automated CI/CD with Docker and scripts.

.NET Core C++Time Series Analysis Docker CI CD SQL Dashboarding Performance Optimization

Application Developer

Automate Infosys

Jan 2018 - Jul 2018 (6 months)

Designed and developed greenfield and brownfield web applications, improved cross-browser/device compatibility and reduced defects by 30% through testing and standards-compliant code.

Web Development JavaScript HTML CSS Testing Browser compatibility Agile)Debugging QA Agile

Education

Degrees, certifications, and relevant coursework

University of Creative Technology Chittagong

Bachelor of Science, Computer Science and Engineering

2020 - 2023

Activities and societies: Programming contests, hackathons, mentoring juniors in coding and app development

Completed a B.Sc. in Computer Science and Engineering with focus on software engineering, mobile systems, and emerging technologies; participated in programming contests and mentored junior students.