konrad.app
Product engineer · AI · iOS  •  open to select work

I build thoughtful software with AI, taste and shipped product sense.

Currently building agentic AI at Opal — a 2025 Apple Design Awards finalist. 12 years shipping consumer products to 1M+ users, from deep iOS craft to production LLM systems.

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Konrad Roj
12 yrsProduct engineering
1M+Users shipped to
ADA 2025Finalist · Opal
End-to-endOpal AI product
Featured · building now

Agentic AI support, owned end to end

At Opal I build the AI support product from discovery to production — agentic workflows, RAG, evaluations, and secure native agent tools across iOS and macOS.

Agentic workflowsRAG + evaluationsNative agent tools (iOS/macOS)

Selected work

Project Verdant screenshot 1
Project Verdant screenshot 2
Project Verdant
Founder project · AI gardening companion

A seasonal garden planner with tasks and AI-assisted guidance. Built end-to-end — product, design, and engineering.

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Opal
Lead iOS → AI Engineer · 2024–now

Led iOS for a 4.8★ screen-time app used by 1M+ people; team named an Apple Design Awards 2025 finalist. Now building its agentic AI support product end to end.

About the role
1M+daily active users
ADA '25finalist team
Podsumi screenshot 1
Podsumi screenshot 2
Podsumi
Founder · live product

Trend-intelligence for social media — signal from public data: hashtags, topics, engagement. Shipped and live.

Visit podsumi.com
Dispo
iOS Engineer · Team Lead · 2021–2024

Led five engineers on a Swift social app with 1M+ MAU. Cut launch time from 3.75s to under 1.2s and data usage by 50%.

About the role
3.75→1.2sapp launch time
1M+monthly actives
Project Hippocrates

Medical learning — structured practice and generated question flows.

Project Hyperion

A procedural browser-game experiment — feel and iteration speed.

Why me

Product taste plus engineering depth.

  • Shipped mobile systems to millions of users across consumer and enterprise.
  • Lead iOS on an Apple Design Awards 2025 finalist team at Opal.
  • Now shipping production agentic AI — LLMs, RAG, evals, native tools.
  • Founder of Podsumi, a live market-signal product.
Get in touch

Building something thoughtful? Let’s talk.

[email protected]LinkedIn