ProdCraft AI builds, shipped.

The senior AI engineer your roadmap is missing.

Without the FTE, the agency timeline, or the slide-deck demos. Built with Claude Code. Live in your stack in weeks.

Debanjan Mazumdar, founder of ProdCraft
Debanjan Mazumdar
Founder · lead engineer · Paris · 15+ yrs

The receipts

$1M+
qualified pipeline generated
from 48,000+ cold emails/mo at 4%+ reply, one fully-automated outbound system
+45%
feature adoption
with −55% latency (p95) · enterprise GenAI/RAG in production
<30 days
median ship cycle
across 5+ live AI products built end-to-end: SaaS · mobile · video · agents

What we build

Three things we ship, fast.

Senior operator on every call. No agency overhead. Walk-away day one.

Cold-email & outbound systems

Instantly / SmartLead pipelines, GHL CRM, reply detection, deliverability hardening, sequences that compound.

  • Inbox warmup + domain rotation
  • AI-personalized first lines
  • Reply classification + auto-routing
  • Pipeline reporting in your CRM

24/7 AI sales assistants

Voice + chat (Vapi / Retell / Bland), inbound qualification, outbound dialers, calls transcribed straight into your CRM.

  • Inbound lead qualification
  • Outbound dialing + follow-up
  • Live transcript → CRM sync
  • Sandbox demo on request

Custom AI operations

Agents, RAG, document workflows, internal copilots, n8n / Modal automations — anything Claude Code can ship in days.

  • Multi-agent orchestration
  • Document Q&A + RAG stacks
  • Internal Slack / Teams copilots
  • Modal + Cloudflare deploys

Systems we've shipped

Real builds. Real metrics. Touchable demos.

Two are live below — paste a CV into the optimizer, play the latest video from our channel. The rest you can stress-test on the intro call.

Email

The Always-On Outbound Engine

High-velocity cold-email + GHL CRM + reply automation for a US outbound consultancy.

$1M+
pipeline generated
$200K/yr
SDR headcount replaced
how it works ↓

Stack: Cloudflare Workers + KV + Instantly + GHL. Idempotent sentinel keys, cross-run dedup, per-campaign kill switch, dual-path reply detection. Replaces a 4-SDR team at ~1/10th the cost.

48,000+ emails/mo · 4%+ reply
GenAI

Enterprise Adoption Driver

Production GenAI / RAG product for a US enterprise SaaS.

+45%
feature adoption
−55%
p95 latency
how it works ↓

PM-led from problem framing to shipped feature. Multi-LLM routing, eval harness, prompt-cache-aware cost model, per-tenant config. The latency win came from prompt-cache hits + tenant-aware routing.

SaaS live ↗

Multi-Lingual CV Optimizer

Live SaaS that re-writes a CV in the target locale + tunes for a pasted job description. Paste a CV right here.

EN / FR
live locales
95%
recruiter-pass rate
how it works ↓

Cloudflare Pages + Worker + Gemini backend. Per-field langdetect validators, recruiter-proxy eval, golden-screenshot diff. Eval-first development — ships only when 95% of fields pass.

Video live ↗

ProdCraft AI Video Studio

Script → voice → Remotion → upload, fully automated. Weekly cadence, near-zero marginal cost.

8 min
topic → upload
~$0
marginal cost / video
how it works ↓

Voice clone via Chatterbox HF Space, visual generation via Gemini, render via Remotion, upload via YouTube Data API. From topic prompt to public video in eight minutes.

Mobile

The 14-Day Shipping Pipeline

Expo + EAS Build → TestFlight & Play Store, AI features wired in (transcription, summaries, agents).

14 days
idea → TestFlight
iOS + Android
one codebase
how it works ↓

Per-app registry, EAS cloud builds (no Mac required), 5-principle app design framework, 2-pass security audit. Backend tracks: Cloudflare Worker + Modal cron OR Supabase.

Agents

Claude Code Operator Stack

Multi-agent orchestration, MCP servers, internal copilots, anneal audit loops for self-hardening code.

$10K/wk
headcount cost saved
12+
AI systems shipped
how it works ↓

Dynamic workflows, agent teams, sub-agent delegation per task complexity. Anneal: iterative audit loop until convergence. MCP servers for custom integrations.

The stack

What we actually use to ship.

No theory. These are the tools running the systems above, right now, in production.

AI models
  • Claude
  • Gemini
  • GPT
  • Vapi / Retell
  • Whisper
Build & deploy
  • Claude Code
  • Cloudflare Workers
  • Cloudflare Pages
  • Modal
  • Expo + EAS Build
  • Remotion
Ops & GTM
  • Instantly
  • SmartLead
  • GHL
  • n8n
  • Anymailfinder
  • Million Verifier

How we work

Three things you don't have to worry about.

"Will this take six months?"

Ship in days, not months.

Claude Code + senior product instincts = 5× the throughput of a typical agency. First working slice in week one.

"Do I get a sales rep, a PM, and a junior dev?"

You get one senior operator on every call.

15 years of product. The same operator writes the prompts, codes the system, deploys it, and watches the metrics. No relay race.

"What if I want to fire you?"

All code, all credentials — yours. Day one.

Repo in your GitHub. Keys in your accounts. Walk away whenever. We work to be re-hired, not to be locked in.

Recommendations

From people we've shipped with.

Debanjan caught a silent bug that was killing 83% of our outbound leads before they ever hit an inbox — then rebuilt our entire pipeline around the fix: sourcing, AI personalization, reply classification, CRM routing. Deep technical chops, total transparency, ruthlessly results-focused. I'd hire him again tomorrow.
Jitendra Kumar
Founder & CEO · InfoTNT
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'Yes, we can do it' — and then he actually ships it. The rare operator who's frank about risks the moment he sees them, builds team capability while delivering, and you can hand him any organizational task and trust the outcome.
Ramesh Babar
Project Manager · Zensar Technologies
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I brought Debanjan in to build a two-sided marketplace with me, and it was one of the smoothest builds I've been part of. He took it from zero — Stripe Connect, the full payment flow, the entire platform — and we cleared $85k in transactions inside the first three months. What stuck with me wasn't just the speed; it's that he sweats the edge cases and ships things that don't break. I'd work with him again in a heartbeat.
Siva Devavarapu
Founder · Papaya Labs
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Stop reading. Start shipping.

Book 30 minutes. We'll show you what's possible.

No deck. No sales pitch. Grab 30 minutes and we scope a first build on the call.