Marcel Mannuel
Former Project Manager turned AI Engineer. I bridge the gap between technical execution and product strategy — shipping systems that actually work at scale.
About Me
The short version: I got tired of being in the room but not at the keyboard.
I spent four years leading cross-functional teams as a Project Manager, shipping products in fintech and enterprise software. I was good at it — but I kept running into the same wall: the gap between what was technically possible and what actually got built.
So I closed the gap myself. I retrained. I learned to code, then to build AI systems. Now I work at the intersection of engineering and product thinking — writing production code while still understanding what the business actually needs.
I specialize in AI-powered backends, NLP pipelines, and developer tooling. I care about systems that are reliable, maintainable, and solve the right problem. Not just impressive demos.
4+
Years in PM
12+
AI Projects Shipped
100%
Client Satisfaction
∞
Cups of Coffee
// Philosophy
"Great software isn't just about clean code. It's about understanding what problem you're solving and for whom. That's what years of PM work gave me — and why I think differently from engineers who've only ever built things."
Technical Skills
A practical snapshot of my toolkit — built from shipping real projects, not collecting certifications.
Featured Projects
Production systems, not toy projects. Each one went through design, iteration, deployment, and client delivery.
Production-grade REST API for real-time face verification using deep learning. Built with liveness detection to prevent spoofing, supporting 10k+ verifications/day with sub-200ms latency.
End-to-end pipeline that records, transcribes, diarizes speakers, and generates structured meeting summaries with action items. Integrated with Google Meet and Zoom via webhooks.
Flexible RBAC system with dynamic permission assignment, audit logging, and a no-code admin UI. Handles multi-tenant scenarios with row-level security.
Semantic search engine with personalized recommendations using vector embeddings. Replaces keyword matching with intent-aware retrieval, increasing product discovery by ~40%.
Experience
From managing teams to writing the code myself — a deliberate, non-linear path.
Independent
Building AI-powered products and APIs for clients across fintech, HR tech, and e-commerce. Responsible for end-to-end delivery: architecture, implementation, deployment, and documentation.
Full-time Learning
Made the deliberate decision to transition from PM to engineering. Spent 12 months in intensive self-study: Python, ML fundamentals, deep learning, NLP, and full-stack development. Built 10+ projects from scratch.
Fintech Startup (Series B)
Led delivery of core banking features serving 200k+ users. Managed a cross-functional team of 12 engineers, designers, and QA. Owned product roadmap, sprint planning, and stakeholder communication.
Enterprise Software Company
Managed implementation projects for enterprise clients in logistics and manufacturing. First role where I noticed the systemic gap between technical teams and business stakeholders — the problem I eventually set out to solve personally.
Learning Journey
Structured learning that translated into shipped products, not just badges on a profile.
Get in Touch
Whether you have a project in mind, want to collaborate, or just want to talk shop — my inbox is open.
Prefer a more direct route? Pick your channel below. I respond fastest on email and WhatsApp for urgent project inquiries.
GitHub
See my code
Professional profile
mannuelmarcel@gmail.com
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