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Full Stack Engineer

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Working Remotelysdutt12139@gmail.com+91 73550 12139

About Me

Sourav Dutt

Full Stack Engineer with 6+ years building scalable SaaS platforms and marketplaces for startups. Proven track record delivering AI-powered solutions, real estate platforms, and growth marketing tools.

Expert in MVP development and scaling applications from concept to production with modern tech stacks.

25+

Projects Delivered

6+

Years Experience

98%

Client Satisfaction

$200K+

ARR Generated

Get to Know Me Better

Watch this short introduction video to learn more about my journey and expertise

Technical Skills

Proficient in modern technologies and frameworks for building scalable applications

TypeScript
JavaScript
PHP
Node.js
Laravel
React
Next.js
PostgreSQL
MySQL
Redis
Prisma
Tailwind
Bootstrap
Docker
Heroku
Git

Frontend

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

Backend

Node.js, Laravel, PHP, REST APIs, Microservices

DevOps & Database

PostgreSQL, MySQL, Redis, Docker, DigitalOcean, Heroku

Professional Experience

Full Stack Engineer (Contract)

US Fintech Client (Under NDA)

Apr 2025 – Aug 2025

Node.js, Next.js, BullMQ, Redis, PostgreSQL, TypeScript, Prisma
  • Delivered AI-powered outreach automation platform for professional networking
  • Built scalable microservice architecture with queue-based processing system
  • Implemented AI-driven content generation and workflow automation features
  • Managed end-to-end development from concept to production deployment

Full Stack Engineer (Part-time)

SimplyTC, USA

Oct 2024 – Present

Next.js, TypeScript, PostgreSQL, Tailwind
  • Developing real estate transaction platform automating workflows for US real estate agents
  • Built pay-per-transaction payment system with Stripe integration and automated invoicing
  • Created deadline management system reducing manual compliance work by 80%
  • Designed responsive dashboard with real-time transaction tracking and reporting

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, helping businesses increase 5-star ratings
  • Built universal widget system supporting React, Vue, and even WordPress
  • Developed AI analytics dashboard for customer sentiment analysis and feedback optimization
  • Managed distributed team of 5 developers across multiple time zones with agile methodology
  • Implemented CI/CD pipeline reducing deployment time from hours to minutes

Full Stack Engineer (Freelance)

Fiverr, Upwork & LinkedIn Clients

Nov 2021 – Dec 2023

Laravel, MySQL, JavaScript, Bootstrap/Tailwind, DevOps
  • Completed 25+ successful projects with 98% client satisfaction rate
  • Built DIYCostSeg: Instant-report SaaS for US real estate cost segregation generating $100K+ ARR
  • Developed admin panel for Kunaiu mobile app (1M+ downloads) managing content for 50K+ users
  • Delivered full-stack solutions including SaaS platforms, marketplaces, and automation tools

Featured Projects

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

LoanRanger.ai

Dimension Finance LLC

Apr 2025 – Aug 2025

AI-powered SaaS platform helping loan officers generate 3x more warm referrals from LinkedIn through intelligent automation and personalized outreach playbooks.

Conversion

+45%

Operations

10K+/day

Architecture

Microservices

Key Impact:

  • Built scalable microservice architecture with BullMQ queue processing
  • Handled 10K+ daily operations with Redis-backed job queue
  • Improved client outreach conversion rates by 45%

Tech Stack:

Node.js
Next.js
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

Interested in working together?

Let's Talk

Key Achievements

🚀

5+

Startup Impact

MVPs delivered to production

💰

$200K+

Revenue Generated

ARR from built platforms

👥

3-7

Team Leadership

Developers led per project

20%

Fast Delivery

Faster than estimates

🎯

85%

Client Retention

Returned for more work

📦

25+

Projects Delivered

For US-based companies

Frequently Asked Questions

Common questions about hiring me for your startup or SaaS project

My rates are $40-60/hour for hourly projects, or $6,500-10,000/month for monthly retainers. For fixed-price projects, I provide custom quotes based on scope. I offer 40-60% cost savings compared to US-based developers while maintaining high quality.

I specialize in modern full-stack technologies: Next.js, React, Node.js, TypeScript for frontend; Laravel, Express for backend; PostgreSQL, MySQL, Redis for databases. I also have extensive experience with Stripe payments, AWS, DigitalOcean, and building scalable microservices architectures.

Yes! I have 6+ years of experience working with US-based companies and startups. I offer flexible scheduling with 2-3 hours of overlap with EST/PST timezones for daily standups and meetings. I also use async communication effectively via Slack, Notion, and email.

Typical MVP timelines range from 4-12 weeks depending on complexity. For example, I delivered LoanRanger.ai (AI-powered SaaS with queue processing) in 4 months, and smaller MVPs in 6-8 weeks. I use agile methodology with weekly sprints for faster iteration.

I work on both! I can start new projects from scratch (0-to-1 MVP development) or jump into existing codebases for feature development, bug fixes, refactoring, and scaling. I have experience with legacy code modernization and technical debt reduction.

I have built multiple profitable SaaS platforms including DIYCostSeg ($100K+ ARR), Trustloop (500+ business customers), and LoanRanger.ai (10K+ daily operations). I specialize in subscription billing, multi-tenant architecture, user authentication, and analytics dashboards.

I provide daily standup updates via Slack or email, weekly progress reports, and use tools like Notion, Jira, or Linear for project tracking. I document everything clearly, share screen recordings for complex issues, and maintain regular video calls for alignment.

6+ years working exclusively with US startups (not just freelancing), 98% client satisfaction across 25+ projects, proven track record of revenue generation ($200K+ combined ARR), startup mindset with ownership mentality, and specialization in 0-to-1 product development.

Yes, absolutely! I sign NDAs, work-for-hire agreements, and IP ownership contracts. All client code and intellectual property remains 100% owned by the client. I also provide detailed invoices and can work through platforms like Upwork for added protection.

Yes! I have experience deploying applications on AWS, DigitalOcean, Heroku, and Vercel. I can set up CI/CD pipelines, configure databases, implement caching with Redis, set up monitoring and logging, and handle scaling infrastructure as your app grows.

Still have questions?

Feel free to reach out directly - I typically respond within 24 hours

Get in Touch

Let's Work Together

Available for full-time remote positions and contract work with US-based startups

Connect with me