Professional Engineering & Cybersecurity | Sadhyarshi.com
Full-Stack & Security

Scale Ideas With
Elite Development

I build production-grade systems for founders who value architecture and security over shortcuts. Specializing in high-performance Java/Kotlin backends and scalable SaaS infrastructure.

Cybersecurity & Hardening

Protecting your digital assets from XSS, SQL injection, and unauthorized data breaches. Professional logic-gate hardening and audits.

₹50,000 — ₹2,00,000 | $600 — $2,400
  • Vulnerability & XSS Audits
  • WAF & Firewall Orchestration
  • Secure API Gateway Design
  • Session Management Hardening
Get Security Audit

SaaS & Enterprise Apps

Building complex multi-tenant dashboards, business automation platforms, and internal tools for modern teams.

Starts at ₹1.5L / $1,800
  • Multi-tenant Architectures
  • Business Process Automation
  • Custom ERP & CRM Solutions
  • Real-time Data Visualizations
Request Proposal

Mobile App Engineering

High-performance Android and cross-platform apps built with Kotlin and Flutter. Optimized for speed, offline-first capabilities, and native user experience.

Discuss Mobile Project
The Technology Stack
Java /
Kotlin /
Spring Security /
Next.js /
PostgreSQL /
Docker /
AWS WAF /
Python

Ready to Engineer Growth?

Currently reviewing projects for Q2 2026 delivery.

Consultation with Sadhyarshi