Michalina Kowalczyk
I build the tools and systems that marketing sites need. Whether that's a CMS that scales, a lead flow that works end-to-end, or custom tooling that solves a problem your current stack can't handle on its own.
Based in Warsaw, Poland. Sharing a life with a boxer pup🐾Lady Ruby
, spending an unreasonable amount of time on weightlifting and sudokuing, and making questionable sock choices.
Sometimes that's a CMS architecture for thousands of pages. Sometimes it's custom tooling your site needs but your platform can't do natively. Sometimes it's connecting three internal tools that don't talk to each other. The common thread: there's a real problem, the existing setup doesn't solve it, and I work within the stack you have to build what's missing.
8+ years working with marketing and growth teams — which taught me something most engineers don't learn firsthand: why these systems matter and what breaks when they don't. I understand how acquisition and conversion work end-to-end. Now I design and ship the infrastructure and tooling that gets it right.
Projects
Content Infrastructure System
- The Problem
- V7's marketing site kept growing. First an agents library, then document types, then an integrations directory that needed to interlink with existing content. Each new section meant more CMS records, more cross-references between collections, and more demand on the search and filtering components I'd built earlier. The system needed to support 12,000+ records across 6 interconnected collections and keep scaling without rebuilding every time.
- What I Built
- A three-component data pipeline: a custom Framer plugin that exports and normalizes CMS data across 6 collections, a Vercel serverless API that stores it as public JSON, and React search/filter components that make thousands of records instantly searchable with URL-synced state. The whole system lets the content team publish independently while the data stays consistent.
- What It Did
- 2,000+ dynamically generated pages. Sub-second client-side search across thousands of records. Non-technical team publishing independently. Real-time content updates without deployments.
Framer CMS (12,000+ records, 6 collections)
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CMS Exporter Plugin (normalize + resolve cross-references)
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Vercel Serverless API → Blob Storage (public JSON)
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React Search/Filter Components (client-side, URL-synced)
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Production Directory Pages (agents, integrations, docs)Demo & Lead Acquisition System
JL Engine — Job Search Infrastructure
LeftyWorkout — Training App Frontend
Content Operations Data Pipeline
Little Xmas — Interactive Gift Experience
About Me
4 years owning V7's full marketing tech stack. Now building independently and looking for the right next thing. I value autonomy, coherence, and systems thinking. Environments where systems don't exist yet or need scaling are where I do my best work.
Open to project-based work and full-time roles. Frontend-leaning engineering close to marketing, growth, or GTM teams. Remote, EMEA timezone.
Work With Me
Project-based work
There's a problem your current setup doesn't solve. A CMS that needs to scale, internal tools that don't talk to each other, custom tooling your platform can't do natively. I work within your stack to build what's missing.
You get a working system, documented and self-sustaining after handoff. Scoped engagements with a clear deliverable.
Reach outFull-time roles
Frontend-leaning engineering close to marketing, growth, or GTM teams. Where the website is core infrastructure and there's plenty to build.
Remote, EMEA timezone. Website Engineer, Growth Engineer, Frontend Engineer.
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