Portrait of Andrii Petlovanyi
Andrii Petlovanyi

Full-stack developer based in Ukraine

Product-minded full-stack engineer

I build production-ready web, mobile, browser-extension, and AI-enabled products.

I help product teams turn complex ideas into fast interfaces, reliable systems, useful AI features, and user experiences that feel clear from the first use.

Available for selected custom development projects, MVP builds, AI feature work, browser extensions, and product-focused collaborations.

About me

Product engineering, quietly polished.

I am a product-minded full-stack developer from Ukraine with 7+ years of coding experience and 4+ years in professional product development. I work across web, mobile, browser extensions, backend services, and AI product features, with a strong focus on product clarity and production quality.

My stack is built around React, Next.js, NestJS, Node.js, Python, FastAPI, Expo, Swift, and practical AI integration. I care about products that feel simple because the hard thinking happened underneath: clean flows, stable layouts, strong metadata, readable code, source-grounded AI behavior, and careful trade-offs.

Born in Morshyn and based in Rivne. Outside of code, I am into spinning fishing, mountains, staying active, and collecting things with a clear point of view: sneakers, caps, and fragrances.

7+years of hands-on engineering practice
4+years in professional product teams
AIfeatures shaped around context, trust, and workflow fit
Recommendation

A signal from a past client.

Featured LinkedIn recommendationGlovo
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Highly skilled full-stack developer! Impressive work on our Glovo project. Deep understanding of the tech stack used, efficient integration, and excellent communication. Our website is now reliable and user-friendly, thanks to your expertise. Looking forward to future collaborations.

What I build

Production surfaces, not portfolio theater.

Interface systems

Product web apps

Fast, stable interfaces with clean product flows, clear data boundaries, and interaction details that make complex work feel calm.

WebNext.js, React, SEO, accessibility
AI product engineering

AI product features

LLM-powered workflows designed around context quality, source grounding, latency, cost, privacy boundaries, and clear user control.

AILLMs, Gemini, context design, AI UX
Mobile UX

Mobile experiences

Capture-heavy mobile flows for real conditions: weak signal, quick saves, Apple Watch moments, and polished native-feeling screens.

MobileExpo, React Native, Swift
Workflow tools

Browser extensions

Focused Chrome extension workflows that stay close to the page, reduce context switching, and turn technical review into clear action.

ExtensionsChrome side panels, audits, automation
Backend systems

APIs and sync systems

Reliable services for sync, validation, metadata, and production behavior under constraints that clean diagrams usually ignore.

SystemsNestJS, Node.js, Python, PostgreSQL

Selected work

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Experience

Ownership, context, delivery.

  1. 1992

    Born in Morshyn, Ukraine

    A small city with mountains nearby, clear air, and the kind of quiet that makes details easier to notice.

  2. 2017

    Masters degree in Software Engineering

    West Ukrainian National University in Ternopil.

  3. 2015-2022

    Regional Manager at Electrolux AB

    Built the product sense, ownership habits, and communication discipline that now shape how I approach software.

  4. 2022-2024

    Software Engineer at Cloverdynamics

    Worked across production interfaces, backend services, and team delivery constraints.

  5. 2024-now

    Software Engineer at 7loc

    Building product-focused web, mobile, AI, and backend systems with a strong eye for UX, SEO, and maintainability.

Latest writing

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Context Optimization in AI Products: How to Make AI Features Faster, Cheaper, and More Useful
AI Product EngineeringMay 30, 2026

Context Optimization in AI Products: How to Make AI Features Faster, Cheaper, and More Useful

AI product quality often depends less on the model and more on the context you give it. A practical look at context optimization, cost, latency, source grounding, and real product workflows.

Read the article
Available for selected custom development work

Let's work together

Open to custom product work, AI feature development, MVP builds, browser extensions, and product-focused collaborations.