Frontend Architect& Tech Lead

React · Next.js · TypeScript

I help enterprise teams build and improve complex web applications. I shape frontend architecture, write production code, and support developers through technical decisions and everyday delivery.

Explore projectsGet in touch

From product goals to production code

Frontend decisions affect the whole product. I work with business, design, and engineering to connect what we need to achieve with how we build it.

Recent work

A recent project where I combine technical leadership with hands-on work.

See all projects

Technical leadership for an enterprise analytics dashboard

A platform for exploring millions of records through interactive charts, advanced search, and data tables.

  • 10 frontend developers
  • Takeover from previous vendor
  • Architecture & performance audit

As Tech Lead, I audited the frontend, identified architectural and performance issues, and helped stabilize the platform. I combine technical direction with hands-on development, mentoring, and close work with UX/UI on reusable dashboard widgets.

View career timeline

Let's talk about your frontend

Need a Frontend Architect or hands-on Tech Lead for your team? I can help with ongoing product development, architecture reviews, and focused performance improvements.

For founders and smaller teams: frontend audits and focused performance reviews.

Tell me what you are building and where you need support.

Get in touch
Location
Rzeszów, Poland
Time zone
CET (UTC+1 / UTC+2 in summer)
Work mode
Remote
Engagement
B2B contract
LinkedIn
Marcin Iwanczyk