
MD NAZMUL ISLAM
I build scalable SaaS and web apps with MERN fast clean reliable
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Portfolio
Esperienza lavorativa
React Native Developer
SperkTech • Full time
Sep 2025 - Present • 8 mos
As a React Native Developer at SperkTech, I am responsible for building modern, high-performance mobile applications for both Android and iOS. My role includes developing new features, improving existing app functionality, fixing bugs, and ensuring smooth performance across devices. I work with technologies such as React Native, JavaScript, TypeScript, Redux, REST APIs, Firebase, and third-party integrations. I collaborate with designers, backend developers, and project managers to turn requirements into clean, scalable, and user-friendly mobile experiences. I implement UI components, manage app state, integrate APIs, handle authentication, and optimize app speed and responsiveness. I also test, debug, and troubleshoot issues to ensure the best user experience. In addition to development, I contribute to publishing apps to the Google Play Store and Apple App Store, handling builds, app signing, and version updates. I focus on writing clean, maintainable code, following best practices, and delivering projects on time. My work helps SperkTech deliver reliable, modern, and business-ready mobile solutions for clients across different industries.
IT Enginner
Advance Enginnering Institue • Full time
Dec 2021 - Dec 2022 • 1 yr
As an IT Specialist and Computer Trainer, I played a key role in delivering practical, high-quality computer education to students of different skill levels. My responsibilities included teaching essential computer concepts, software applications, and real-world digital skills required for academic, professional, and personal development. I provided training in areas such as Microsoft Office, internet browsing, email management, operating systems, online safety, and basic IT troubleshooting. I conducted structured classroom sessions, live demonstrations, and guided practical exercises to help students understand and apply what they learned. I created lesson plans, practice assignments, and training materials tailored to the needs of beginners as well as more advanced learners. My role required breaking down technical concepts into simple explanations so that students could easily follow and build confidence in their abilities. In addition to teaching, I was responsible for the technical maintenance of the computer lab. This included setting up computers, installing necessary software, updating systems, handling connectivity issues, and ensuring that all equipment functioned properly. I regularly solved software and hardware problems, provided on-spot technical support, and maintained a smooth learning environment for all students. I also monitored class progress, evaluated student performance, and provided individual support when needed. I encouraged students to develop digital literacy skills, supported them in using new tools, and helped them prepare for practical exams or job-oriented tasks. My role combined teaching, technical expertise, communication, and responsible classroom management. Through this experience, I contributed to helping students become confident, independent, and capable users of technology, preparing them for both educational success and future career opportunities.
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nazrul_ih

Corea del Sud
I had an excellent experience working with this freelancer. He is professional, reliable, and very impressive in his work. Communication was smooth, deadlines were respected, and the quality of the final delivery exceeded my expectations. His attention to detail and dedication truly stand out. I highly...
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