01
Sustainability Platform
CRBN Credit
Algorithmic sustainability platform for verified carbon offsetting, with emissions tracking and transparent credit issuance.
SaaS & product work
Five platforms, built end to end.
Full-stack products across sustainability, wealth, maritime, security, Web3 and fintech. Design through deployment, built solo. Screenshots are from the live builds.
- Platforms
- 0
- Live now
- 0
- Built solo
- 100%
- MVP from
- $1k
The builds
What I have shipped
02
B2B Network
Billion Dollars Hub
High-ticket B2B networking and scaling hub for wealth management, built around member vetting and introductions.
03
Maritime SaaS
YachtX Club
Luxury maritime SaaS covering yacht ownership, chartering and management in a single operator-facing system.
04
Security Platform
The Aegis Protocol
Zero-trust, optical-isolation code sharing secured by biometric accountability and ephemeral video streams.
05
Fintech SaaS
FinTax Credit
Automated tax compliance and DeFi lending scoring, replacing manual audit hours with deterministic checks.
Commissions
What I build for clients
The portfolio above is what I have shipped. This is what people actually hire me for.
From $1,000
MVPs
Concept to deployed product in four to ten weeks. Auth, data model, core flows and a real deployment, not a prototype.
From $1,000
Internal dashboards
Operational software for your own team: metrics, client records, workflow state and the boring screens nobody else will build well.
From $1,500
Client portals
Authenticated areas with role-based access, document handling and billing where you need it.
From $700
API integrations
Connecting systems that were never designed to talk to each other, with error handling that tells you when something breaks.
Audit first
Rescue & takeover
Inheriting a half-finished build. Starts with an audit and an honest answer about whether to repair or rebuild.
From $700
High-design websites
Heavily animated, fast, responsive marketing sites. This one is the working example.
The other half
Before any of this, there were eight years of running the operations.
Ten clients across property, travel, talent, film and B2B agencies. That experience is why the software I build solves problems people actually have. The design side, 38 websites of it, sits on its own page too.
Questions
About the builds
Did you build these alone?
Yes. Design, frontend, backend, database and deployment. I use AI coding tools heavily, Claude Code is my primary environment, which is why the throughput is what it is. The architecture decisions, review and testing are mine.
Are these client projects or your own?
A mix. Some are products I built and operate, others were commissioned. The engineering is the same either way, and each one is a real deployed system rather than a design mockup.
Can you build something like this for me?
Yes. MVP builds start from $1,000 and scale with scope. A single-purpose internal dashboard sits near the bottom of that range; a multi-tenant product with billing, roles and integrations sits well above it. I scope before quoting.
What if I already have a half-finished build?
I take those over regularly. I start with an audit so you get an honest assessment of what is salvageable before committing to a direction, and sometimes the honest answer is that a rebuild costs less than the repair.
Get in touch
Got something to build?
Tell me what it needs to do and who it is for. I will tell you honestly whether it is a four-week build or a four-month one.
WhatsApp · fastest
+91 98756 02929
Email
sentu1993@gmail.com
LinkedIn
souptik-guha-roy
Typical reply time
Within one business day