How I work
Lean PrinciplesCode got cheaper.
Wrong bets didn't.
Ship only what is needed to learn. Cut the scope, then cut it again.
Test demand before building infrastructure. Signal over features.
Use proven tools until the product earns complexity.
Services
Engagement ModelsAI-Built MVP Audit
A vibe-code reality check before real users arrive.
For solo founders and AI-assisted builders who shipped fast with Cursor, Lovable, Bolt, Replit, or Claude — and need to know what’s fragile, unsafe, or overcomplicated.
I review your codebase, auth, database, payments, deployment, and AI integrations. You get a prioritized action plan: fix now, fix later, or ignore.
Fractional CTO
For founders who need senior technical direction without hiring full-time.
Architecture, roadmap, product/tech trade-offs, hiring support, vendor decisions, and technical strategy.
Lead Engineer
For teams that need senior hands-on execution.
Lean MVP development, codebase rescue, integrations, infrastructure, and delivery without agency overhead.
Founder-led
THE PERSON BEHIND THE LABI'm Feliks, founder of Notorio Labs — a senior full-stack engineer with 10+ years of experience, formerly at Evil Martians.
I help founders make the technical decisions they would normally need a senior in-house engineer or CTO for: what to build, what to cut, what is risky, and what can safely wait.
You work directly with me on product scope, architecture, code quality, launch readiness, and the trade-offs that decide whether an MVP ships fast or turns into expensive software debt.
Ready to validate or ship?
I work with 1-2 startups at a time.
If you need a senior technical partner to build a lean MVP, audit an AI-built product,
or rescue a fragile codebase, let's talk.