Vishnu Kumar N User
@vishnukumarnuser
I build Flutter, React, and GIS-powered applications for real-world delivery and infrastructure workflows.
IndiaWhat I'm looking for
I've built customer, driver, and vendor applications for Home Food at Five 9s Solutions using React and Flutter, including Razorpay payment flows and real-time GPS geofencing through Google Maps API.
I converted 20+ Figma screens into pixel-perfect Flutter interfaces, helped reduce crashes through systematic bug fixes and performance optimization, and introduced Git workflows that reduced merge conflicts by 60%.
I'm also contributing to Zulip's open-source codebase, improving responsive workflows for expense entry, dashboards, and receipt scanning while participating in collaborative upstream reviews. My GIS and AI asset-mapping work earned the GDG Coimbatore Tech for Good Award and Agent of Change distinction.
Experience
Work history, roles, and key accomplishments
Independent Contractor/Freelancer
Zulip
Oct 2025 - Present (10 months)
Designed and submitted Pull Requests for open-source issues, developed responsive UI components, and participated in code reviews to improve codebase scalability.
Associate Software Developer
Five 9s Solutions
Apr 2024 - Sep 2025 (1 year 5 months)
Architected multi-platform applications using React and Flutter with state management for customer, driver, and vendor apps. Integrated Razorpay payment gateway and implemented real-time GPS tracking with geofencing.
Software Intern
Corizo Edtech
Aug 2023 - Oct 2023 (2 months)
Resolved 20+ critical bugs in a live production environment affecting 5,000+ daily active users. Collaborated with a cross-functional team of 10+ developers using Agile methodologies.
GIS Developer
Google Developers Groups
May 2023 - Jul 2023 (2 months)
Architected and presented a geospatial asset-mapping platform utilizing AI concepts at a Google Developers Group event. Awarded for demonstrating a data-driven solution for public infrastructure planning.
Education
Degrees, certifications, and relevant coursework
SNS College of Technology
Master of Computer Applications, Computer Applications
Grade: 8.02/10
Pursued a Master of Computer Applications with a CGPA of 8.02/10.
SRNM College
Bachelor of Science, Computer Science
Grade: 8.92/10
Completed a Bachelor of Science in Computer Science with a CGPA of 8.92/10.
Tech stack
Software and tools used professionally
Availability
Location
IndiaAuthorized to work in
Portfolio
vishnukumardev.github.io/portfolioJob categories
Skills
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