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Yatinj Sutariya

EXPERTISE

Engineering across products, payments, AI, automation, and infrastructure.

The tools change from project to project. The responsibility stays the same: understand the business problem, choose the right architecture, connect the systems correctly, and deliver software that can operate reliably in production.

AI & AUTOMATION

AI where it creates leverage. Automation where it removes repetition.

AI and automation as parts of complete software systems - assistants in products, agents with APIs, retrieval around business knowledge, and workflows across SaaS tools, custom backends, and approvals.

AI integrations

  • OpenAI / Anthropic / Gemini
  • LLM APIs & prompt workflows
  • Structured outputs & tool calling
  • AI assistants & copilots

AI agents

  • Multi-step autonomous workflows
  • External API / tool access
  • Business-rule execution
  • Human approval flows

RAG & knowledge

  • Vector search
  • Document processing
  • Knowledge bases
  • Semantic search

Workflow automation

  • n8n / Make / Zapier
  • Webhook-based workflows
  • CRM & lead automation
  • Custom automation backends

System flow

  1. CRM
  2. n8n / Make
  3. Custom API
  4. AI Agent
  5. Business Logic
  6. Database
  7. External SaaS

PAYMENTS & FINTECH

Payment systems built beyond the checkout button.

Reliable financial workflows across connected accounts, subscriptions, webhooks, failures, refunds, reconciliation, and marketplace business rules.

Stripe & Connect

  • Stripe Connect
  • Marketplace commissions
  • Connected accounts
  • Platform fees

Billing

  • Subscription billing
  • ACH payments
  • Customer portals
  • Checkout systems

Lifecycle

  • PaymentIntents / SetupIntents
  • Webhook processing
  • Failed-payment handling
  • Refund & reconciliation flows

Platforms

  • Stripe
  • PayPal
  • Razorpay
  • Plaid integrations

System flow

  1. Customer
  2. Payment Intent
  3. Stripe
  4. Webhook
  5. Platform
  6. Connected Account

FULL-STACK ENGINEERING

From interface to infrastructure.

Frontend decisions, backend logic, data models, integrations, and deployment designed as one coherent system.

Frontend

  • Next.js
  • React
  • TypeScript
  • Dashboards & SaaS UI

Backend

  • Node.js
  • REST APIs
  • Authentication
  • Webhooks & background jobs

Data

  • PostgreSQL
  • MongoDB
  • SQL
  • Reporting

Cloud

  • AWS
  • Vercel
  • S3 / Lambda
  • Production deployment

System flow

  1. Frontend
  2. Backend API
  3. Database
  4. Cloud
  5. External Services

PRODUCT ENGINEERING

MVPs, takeovers, and systems that can grow.

Turn product ideas into working software - or take over existing systems - without overengineering the first version or creating debt that blocks growth.

MVP development

  • Product planning
  • Architecture
  • Core feature delivery
  • Iteration loops

Existing system takeover

  • Codebase audit
  • Architecture review
  • Feature extensions
  • Payment / AI additions

Architecture

  • System boundaries
  • Integration design
  • Reliability planning
  • Technical strategy

Integrations

  • SaaS APIs
  • Payments
  • AI services
  • Automation platforms

System flow

  1. Audit
  2. Architecture
  3. Build
  4. Integrate
  5. Validate
  6. Deploy

Need this depth applied to a real product, payment system, or automation workflow?

Start a Project