Technical Lead 9+ Years in Production .NET · React · PHP/Laravel

Technical Lead.
Full-Stack Engineer.
9 years of production ownership.

I am Vishal Joshi a Technical Lead and Full-Stack Engineer based in Mohali, India. My experience spans enterprise SaaS platforms, multi-tenant architectures, payment system integrations, and high-throughput data pipelines across nine years of professional delivery.

I take full ownership of projects from architecture and implementation through team leadership and production deployment. Every system I deliver is built for long-term stability and maintainability, not just the immediate release.

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Experience

0+ yrs

professional production delivery

Dev Throughput

0%

increase delivered via ownership model

System Stability

0%

improvement via standards & governance

Vishal Joshi

Technical Lead · SaaS & Payments

Mohali, India .NET · React · Laravel

Technologies delivered in production

Selected engagements

Production systems delivered across enterprise SaaS, multi-tenant platforms, and payment-driven applications each owned fully from architecture through launch.

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Affordable Housing Management Platform

✦ AI-driven document validation replaced manual verification at scale

Enterprise platform for housing applications, tenant onboarding, unit assignment, lottery management, and compliance tracking. Designed and implemented an AI-based document validation engine that eliminated a significant portion of the manual review workload across 500+ housing units.

React .NET AI Validation Enterprise SaaS Technical Lead

Manage My Market multi-tenant vendor management platform

Multi-Tenant Market & Vendor Management

✦ Stripe, PayPal & Square unified within a single reconciliation layer

Multi-tenant SaaS platform for farmers market operators covering vendor onboarding, staff management, subscription billing, and a unified payment architecture integrating three processors with full reconciliation support and strict tenant data isolation.

Multi-Tenancy Stripe + PayPal + Square Subscription Billing Technical Lead

Amaru Salons stylist booking and payment platform

Salon Management & Stylist Booking System

✦ End-to-end booking, scheduling & Stripe payments in a single platform

Full-stack booking platform for Amaru Salons stylist availability management, customer appointment scheduling, product catalogue, and Stripe payment processing delivered within a single Laravel application built for operational use.

Laravel Stripe Scheduling Lead Developer

Technical expertise

A full-stack capability developed across nine years of production ownership backend architecture, frontend delivery, data infrastructure, and payment platform integration.

Backend & Architecture

Primary: .NET 8 / C# / EF Core / SQL Server

.NET / .NET 8 C# EF Core SQL Server REST APIs Microservices Kafka MongoDB Background Jobs

Production-grade standards

Idempotency, audit logging, structured error handling, and monitoring instrumentation built in from day one.

Multi-tenant SaaS

Org-scoped data isolation, role-based access control, and secure tenant separation across three delivered platforms.

Frontend, CMS & Delivery

Primary: React 18 / TypeScript / Tailwind CSS

React 18 TypeScript Tailwind CSS PHP Laravel WordPress SEO Bootstrap AG Grid Syncfusion

Accessible interfaces

Responsive, accessible, and structured for long-term maintainability across complex admin dashboards and user-facing products.

Performance by default

Core Web Vitals, asset optimisation, and deploy-ready configuration delivered as standard not added after launch.

Payments & Integrations

Nine years of payment integration experience across five processors including tokenisation, webhook handling, idempotency key implementation, failed payment recovery, and cross-gateway reconciliation within a single platform.

Stripe PayPal Square ACH USAePay Webhooks Tokenisation Reconciliation Subscription Billing

Services

Each engagement is taken on with full ownership clear milestones, transparent communication, and architecture built for your team to maintain long after launch.

Build

SaaS Platform Development

Multi-tenant architecture, role-based access control, approval workflows, reporting dashboards, and data models designed to support growth from launch to enterprise scale. Delivered across housing, marketplace, and logistics platforms.

Multi-tenancy · workflows · reporting · access control

Pay

Payment System Integration

Full payment integration including checkout flows, webhook handling, idempotency, reconciliation, and audit reporting. Experience across Stripe, PayPal, Square, ACH, and USAePay including multi-processor architectures within a single product.

Secure checkout · idempotency · reconciliation · audits

Ship

Web Development & SEO

Performance-optimised websites built on WordPress or Laravel structured for search visibility, technical SEO compliance, and Core Web Vitals performance. Delivered production-ready, not requiring post-launch remediation.

Laravel · WordPress · schema markup · Core Web Vitals

Improve

Performance & Technical Review

Structured technical audit, root cause analysis, and targeted remediation for underperforming systems. Delivered a 35% system stability improvement on one engagement through architectural review and enforced coding standards.

Audit → root cause → remediation → measurement

Client feedback

Feedback from clients and collaborators across SaaS, payment integration, and web development engagements.

Client Name

Role / Company

Engagement approach

1. Requirements & scoping

Business requirements, constraints, and edge cases are fully understood before architecture decisions are made.
2. Incremental delivery

Features are delivered in working increments with consistent stakeholder visibility throughout the build.
3. Production readiness

Security, performance, error handling, and monitoring are addressed as part of the build not prior to launch.

Technical insights

Practical engineering notes on payments, SaaS architecture, and technical leadership drawn from nine years of production experience across real client engagements.

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Payments

Webhook reliability: implementing idempotency that holds under load

The idempotency pattern applied to eliminate duplicate charges across a multi-gateway payment system and the implementation approach used on every subsequent integration.

Multi-tenant data filtering patterns in .NET

SaaS Architecture

Multi-tenant data filtering in .NET without degrading performance

The org-scoped data isolation approach used across three multi-tenant platforms covering filter implementation, query performance, and security boundaries.

WordPress Core Web Vitals optimisation checklist

Web Performance

WordPress Core Web Vitals: the optimisation checklist that works

The specific interventions that produced measurable Core Web Vitals improvements on production client sites without introducing plugin conflicts or regressions.

Open to senior engineering roles
and serious technical engagements.

Available for Technical Lead and senior full-stack positions at product companies, and selective freelance engagements involving complex SaaS, payment, or infrastructure work. Based in Mohali, India available remotely worldwide.

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Technical Lead.
Full-Stack Engineer.
9 years of production ownership.