Sheetal M.

I build client portals, internal tools and SaaS platforms as production software, not prototypes. Engagements tend to run long: two portals I am building now have reached 23125 billed hours.

WHAT I BUILD

Client portals and internal tools

This is the largest part of my work. Passwordless and magic-link authentication, WebAuthn and biometric sign-in, role-based access with real data isolation between tenants, scheduling integrations such as Acuity, invoice and document handling, webhook pipelines, and dashboards that non-technical staff can actually operate without training. Recent portal work has included environmental and waste reporting for a metrics platform, and a scheduling portal built from scratch with magic-link login and email delivery.

SaaS platforms

Multi-tenant architecture, subscription and payment flows through Stripe, Stripe Connect, PayPal and Braintree, admin tooling, usage reporting, and the unglamorous work of making a product survive its first hundred paying customers. I have taken MVPs through to subscription revenue and rescued platforms that stalled after launch.

AI features inside products that already exist

Chatbots, AI agent workflows, document processing, content moderation, and n8n automations wired into live systems rather than demos that stand alone. I work with the OpenAI, Anthropic and Claude APIs, LangChain, and speech tooling including Deepgram and Whisper. The useful version of this work is almost never a standalone bot; it is a feature inside a product people already use.

Back-end and API engineering

Node.js, Laravel and Python services. REST and GraphQL APIs, PostgreSQL with row-level security, MongoDB, Supabase, Redis caching, and high-throughput data APIs where latency and consistency matter more than features. I have built sports data aggregation back ends serving real-time and historical feeds across multiple leagues, with multi-source ingestion, caching and structured logging.

Front end

React and Next.js with TypeScript and Tailwind, progressive web apps with service workers, and interfaces built mobile-first because most portal users are not at a desk.

TECH STACK

Front end: React, Next.js, TypeScript, JavaScript, Tailwind CSS, PWA and service workers
Back end: Node.js, Laravel, PHP, Python, REST APIs, GraphQL, microservices Data: PostgreSQL, MongoDB, MySQL, Supabase, Redis AI and automation: OpenAI API, Anthropic and Claude APIs, LangChain, n8n, agent workflows, Deepgram, Whisper Payments and integrations: Stripe, Stripe Connect, PayPal, Braintree, Twilio, Acuity Scheduling, DeepL, third-party REST and JSON APIs Cloud and delivery: AWS, S3, Docker, Netlify, Vercel, CI/CD pipelines Quality: Playwright, Cypress, Postman, Selenium