Vishall Kumar

Full Stack Developer with 6 production applications shipped end-to-end — including a multi-tenant SaaS platform with Stripe billing, Socket.io real-time sync, and BullMQ job queues, and an AI-powered route optimization tool built with the Anthropic Claude SDK. Proficient in Next.js, TypeScript, and the MERN stack, with hands-on experience across auth systems (JWT, NextAuth, OAuth), databases (PostgreSQL, MongoDB, Prisma, Supabase), maps (Leaflet), and cloud deployment. Completing a B.Sc. in Artificial Intelligence (CGPA: 3.71/4.0) at Szabist University.

Full Stack Developer at Freelance (2023-01 – Present)

Working across Fiverr, Facebook Developer Communities, and WhatsApp Referral Network. Secured and delivered 10+ client projects building a steady client pipeline through reputation and word-of-mouth. Owned every project end-to-end: client discovery, scoping, architecture, full-stack development, cloud deployment, and post-launch support. Built a base of repeat clients and inbound referrals across multiple countries.

• Secured and delivered 10+ client projects across Fiverr, Facebook developer groups, and direct WhatsApp referrals — building a steady client pipeline through reputation and word-of-mouth alone, with zero paid advertising
• Owned every project end-to-end: client discovery, scoping, architecture, full-stack development, cloud deployment, and post-launch support — the complete product lifecycle, handled solo
• Built a base of repeat clients and inbound referrals across multiple countries by consistently delivering on time, communicating clearly, and going beyond the brief — clients came back and brought others
• Delivered full-stack solutions in React.js, Next.js, and Node.js for businesses across diverse industries and time zones, adapting quickly to each client's tech requirements and feedback style

B.Sc. in Artificial Intelligence – Szabist University (2026-06)