I am Satyendra Rajbhar (SatyaXcode), a Sole Full Stack Developer based in Noida, India. I deliver Next.js products, MES and attendance systems, D2C/B2C commerce, Android desktop tools, Linux support, and creative freelance work — on-site or remote worldwide.
End-to-end web products on Next.js App Router and React — from system architecture and API design to responsive UI, authentication, and deployment on Linux.
Tianyin.in case studyManufacturing Execution Systems for real-time production workflows, operator tracking, and reporting — built with Next.js, React Vite, and MSSQL where durability matters.
MES case studySecure visitor registration and facility access tools with role-based permissions, digital entry logs, and form handling designed for on-site security teams.
VMS case studyDirect-to-consumer and business storefronts with cart, wishlist, address management, checkout, and payment flows — Next.js, MongoDB, NextAuth.js, and Razorpay integrations.
Hybrixx case studyOffice attendance systems integrated with eSSL biometric devices over office LAN — device IP, port configuration, and reliable punch sync for on-site teams.
A desktop repair and recovery app I built with Electron, Vite, and React — gradually migrating to Rust and Slint for native, low-level control and embedded support.
Daily driver on the latest Ubuntu. I install and maintain Fedora, Kali Linux, Linux Mint, and Zorin OS, plus Windows formatting, recovery, and dual-boot setups.
Online freelance work for photos, banners, short-form video, and PDF editing — separate from product engineering, delivered with clear scope and quick turnaround.
Define requirements, data models, and a security-first technical plan before writing production code.
Ship backend APIs, frontend UI, authentication, LAN device integrations, and third-party services as one cohesive product.
Apply semantic HTML, metadata, structured data, Google Analytics, and Search Console so launches are measurable.
Release on Linux environments I use daily (latest Ubuntu) with performance tuning and operational readiness — the same stack at Tianyin Worldtech.
Share MES, eSSL attendance, D2C/B2C, Android tooling, Linux, or Next.js requirements — I reply within 24–48 hours.
