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Senior Product Engineer

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Working Remotelysdutt12139@gmail.com+91 73550 12139

About Me

Sourav Dutt

Senior Product Engineer with 6+ years of full-stack experience building AI-powered SaaS platforms used in production. Strong across frontend architecture, backend APIs, distributed systems, and modern AI integrations for startup teams.

Founder of a product-led software company, with a track record of owning architectural decisions end-to-end and shipping a solo product to $100K+ ARR.

25+

Projects Delivered

6+

Years Experience

98%

Client Satisfaction

$100K+

ARR Shipped Solo

Technical Skills

Proficient in modern technologies and frameworks for building scalable applications

TypeScript
JavaScript
Python
PHP
Node.js
Express
Laravel
React
Next.js
tRPC
Zod
PostgreSQL
MySQL
Redis
Prisma
Tailwind
Bootstrap
Docker
DigitalOcean
Heroku
Git

Frontend

React, Next.js, TypeScript, Tailwind CSS, Responsive Design

Backend

Node.js, Express, Laravel, Python, Zod, tRPC, REST APIs, Microservices

DevOps & Database

PostgreSQL, MySQL, Redis, Docker, DigitalOcean, Heroku, CI/CD

AI & Modern Dev

LLM Integration, Prompt Engineering, Structured Outputs, RAG, Embeddings

Professional Experience

Senior Full Stack Engineer (Contract)

US Fintech Client (Under NDA)

Apr 2025 – Aug 2025

Node.js, Express, TypeScript, BullMQ, Redis, PostgreSQL, Prisma
  • Owned end-to-end lifecycle of a distributed, event-driven platform: architecture, APIs, async job orchestration, and production reliability
  • Scaled a Node.js system on BullMQ + Redis processing 10K+ async jobs/day with fault-tolerant queues and retries
  • Built LLM-powered workflows with structured outputs, prompt engineering, and production-grade validation pipelines
  • Designed a multi-stage async pipeline orchestrating third-party ingestion and AI-driven ranking, triggered on user events
  • Optimized API performance and implemented unit/integration testing to improve responsiveness, scalability, and reliability

Senior Full Stack Engineer (Part-time)

SimplyTC, USA

Oct 2024 – Present

Next.js, TypeScript, PostgreSQL, Tailwind
  • Own end-to-end billing and payout systems for a real estate transaction platform, including webhook-driven events
  • Built transaction-based billing with Stripe APIs, ensuring accuracy and idempotent payment workflows
  • Designed and integrated a CRM to support agent workflows and transaction tracking
  • Built workflow automation for compliance tracking, cutting manual operations by 80%

Senior Full Stack Engineer (Contract)

AltGrowth – Growth Marketing Agency, USA

Dec 2023 – Aug 2024

Laravel, MySQL, JavaScript, Bootstrap, Heroku
  • Led technical development of Trustloop SaaS, shaping architecture and developer velocity
  • Architected an embeddable widget system spanning React, Vue, and WordPress with scalable API integration
  • Managed a distributed team of 5 developers across time zones using agile methodology
  • Built AI-powered analytics for customer sentiment analysis; cut deployment time from hours to minutes with CI/CD

Senior Product Engineer | Founder

TechGeeta, India

Oct 2023 – Present

React, Node.js, Laravel, Next.js, AI Integrations
  • Founded and lead a software company, transitioning from client services to a product-led model
  • Directed two subscription products: a compliance-focused HR & Payroll platform for Indian SMEs and a product-demo automation tool
  • Own the full technical and business scope: architecture, AI integrations, DevOps, client strategy, and hiring
  • Directed a team of up to 5 while delivering concurrent contract engagements

Senior Full Stack Engineer (Freelance)

DiyCostSeg, USA

Jul 2022 – Mar 2023

Laravel, MySQL, JavaScript, Bootstrap
  • Independently designed, built, and scaled a pay-per-report platform for US real estate cost segregation analysis
  • Owned architecture, billing, and delivery solo, growing the product to $100K+ ARR as the sole engineer

Full Stack Developer (Freelance)

Fiverr, Upwork & LinkedIn Clients

Nov 2021 – Dec 2023

Laravel, MySQL, JavaScript, Bootstrap/Tailwind, DevOps
  • Built a freelance client base that grew into sustained engagements plus 20+ additional shorter projects, maintaining 98% client satisfaction
  • Developed the admin panel for the Kunaiu mobile app (1M+ downloads), managing content for 50K+ users

Junior Full Stack Web Developer

Wahelink Infotech LLP (Formerly AMGStar), India

Feb 2021 – Nov 2021

PHP, Laravel, JavaScript, MySQL, Bootstrap
  • Built ERP solutions, CMS platforms, and a B2B marketplace (AgriMac.in) for agricultural companies
  • Designed listing, pricing/specification management, and a secure customer inquiry portal

Featured Projects

Showcasing scalable SaaS platforms, marketplaces, and AI-powered solutions delivered for startups

AI-Powered Outreach Platform

US Fintech Client (Under NDA)

Apr 2025 – Aug 2025

Distributed, event-driven SaaS platform automating professional outreach workflows through LLM-powered content generation and personalized playbooks.

Async Jobs

10K+/day

Architecture

Event-driven

Workflows

LLM-powered

Key Impact:

  • Owned end-to-end system lifecycle: architecture, APIs, async job orchestration, and production reliability
  • Scaled a Node.js system on BullMQ + Redis processing 10K+ async jobs/day with fault-tolerant retries
  • Built LLM-powered workflows with structured outputs and production-grade validation pipelines

Tech Stack:

Node.js
Express
TypeScript
PostgreSQL
Redis
Prisma

SimplyTC

SimplyTC Real Estate Platform

Oct 2024 – Present

Real estate transaction coordination platform automating workflows for US agents with deadline management, payment processing, and real-time tracking.

Efficiency

80% faster

Revenue

Per-transaction

Users

Real Estate Agents

Key Impact:

  • Built pay-per-transaction payment system with Stripe integration
  • Created automated deadline management reducing compliance work by 80%
  • Designed responsive dashboard with real-time transaction tracking

Tech Stack:

Next.js
TypeScript
PostgreSQL
Tailwind

Trustloop SaaS

AltGrowth Marketing Agency

Dec 2023 – Aug 2024

Growth marketing SaaS helping businesses increase 5-star ratings through universal widget system and AI-powered sentiment analysis dashboard.

Team

5 developers

Platforms

Multi-framework

Deployment

90% faster

Key Impact:

  • Led technical development as Senior Full Stack Engineer
  • Built universal widget supporting React, Vue, and WordPress
  • Developed AI analytics for customer sentiment analysis

Tech Stack:

Laravel
MySQL
JavaScript
Bootstrap
Heroku

DIYCostSeg

Freelance - Real Estate Tech

Nov 2021 – Dec 2023

Instant-report for US real estate cost segregation studies, generating automated tax optimization reports for property investors.

ARR

$100K+

Market

Real Estate

Reports

Automated

Key Impact:

  • Generated $100K+ Annual Recurring Revenue
  • Built automated report generation system
  • Integrated payment processing and user management

Tech Stack:

Laravel
MySQL
JavaScript
Bootstrap

Kunaiu Admin Panel

Freelance - Mobile App Backend

Nov 2021 – Dec 2023

Content management system for Kunaiu mobile app with 1M+ downloads, managing content distribution for 50K+ active users.

Downloads

1M+

Active Users

50K+

System

CMS

Key Impact:

  • Built scalable admin panel for content management
  • Managed 50K+ active users with real-time updates
  • Implemented role-based access control

Tech Stack:

Laravel
MySQL
JavaScript
Bootstrap

AgriMac B2B Marketplace

AMGStar

Feb 2021 – Nov 2021

B2B marketplace for agricultural machinery enabling businesses to list products, manage pricing/specifications, and handle customer inquiries.

Type

B2B Platform

Industry

Agriculture

Features

Marketplace

Key Impact:

  • Built B2B marketplace connecting agricultural machinery suppliers with buyers
  • Created product catalog with pricing and specification management
  • Developed company landing pages with lead generation

Tech Stack:

Laravel
MySQL
JavaScript
Bootstrap

Open to Senior Product Engineer / Senior Full-Stack Engineer roles — remote from India, or relocation with visa sponsorship (US/EU/UK)

Let's Talk

Key Achievements

🚀

6+

Years Experience

Remote engineering experience

💰

$100K+

ARR Shipped

Shipped solo, sole engineer

🎯

4+

Senior Ownership

Named production systems (SimplyTC, NDA fintech client, AltGrowth, DiyCostSeg)

🏗️

TechGeeta

Founder

Product-led SaaS company

Let's Talk Roles

Open to Senior Product Engineer / Senior Full-Stack Engineer roles — remote from India, or relocation with visa sponsorship (US/EU/UK)

Connect with me