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Pesti-Varga Péter

@pesti-vargapter

Senior iOS and Android developer and LLM engineer behind Goosey, an AI cooking assistant with recipe extraction, search, and RAG.

Hungary

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I built Goosey, an AI-powered cooking assistant with Dockerized FastAPI services and a LangGraph multi-agent system. It extracts recipes from web pages and videos, retrieves recipes with RAG, and combines those results with live web search.

As a freelance iOS and Android developer, I've worked on apps including Enjoy Movies Your Way, Formbricks SDKs, and District Taco. My work has included customizable streaming filters, open-source mobile survey SDKs, and food ordering apps for iOS and Android.

At Radius Networks, I developed the FlyBuy native SDKs for iOS and Android, including a SwiftUI order redemption UI framework for iOS. Earlier, I worked across mobile and Java projects, including streaming services, a blockchain-based cryptocurrency and mobile wallets, and Android applications.

Experience

Work history, roles, and key accomplishments

Current

Freelance iOS & Android Developer

Current

Toptal

Jan 2018 - Present (8 years 9 months)

Worked on various client projects including a streaming app with server-driven UI, open-source SDKs for Formbricks, and a food ordering app for District Taco.

iOS Android Swift SwiftUI Kotlin MVVM Server Driven UIs SDK Development

Senior iOS & Android Developer

Radius Networks

Jan 2019 - Jan 2025 (6 years)

Developed a native SDK for iOS and Android enabling location-based order management for restaurants and stores, including a SwiftUI-based redemption UI.

iOS Android SDK Development SwiftUI Location Based Services

iOS & Android Developer

OTT-ONE Plc.

May 2016 - Nov 2019 (3 years 6 months)

Worked on Telenor MyTV, an online streaming TV service, across Android, iOS, Android TV, and Apple TV platforms.

Android iOS Android TV Apple TV Streaming

iOS & Android Developer

P92 RDI

Nov 2015 - May 2016 (6 months)

Developed a Google Play-like app shop, a subscription-based music streaming app, and an enhanced webview with APK download handling.

Android iOS Java JSON SQLite Espresso Jenkins

iOS & Android Developer

Tembusu Systems Pte Ltd

Sep 2014 - Oct 2015 (1 year 1 month)

Led development of a blockchain-based cryptocurrency system with ATM and mobile wallets, including integration of cash handler devices during a 2-month assignment in Singapore.

Blockchain Cryptocurrency iOS Android Java Jenkins SonarQube

Android Developer

Red Steed Studios Kft.

Sep 2013 - Oct 2015 (2 years 1 month)

Developed a location-based multiplayer game, a YouTube editor and highlighter, and an XMPP-based chat client with group handling.

Android Java Protobuf XMPP YouTube APIs

Java Developer

P92 RDI

Apr 2013 - Aug 2013 (4 months)

Enhanced and refactored the German O2 website using Java with Spring MVC, Hibernate, and Magnolia, and worked with Sonar, Jenkins, and JIRA.

Java Spring MVC Hibernate Magnolia Sonar Jenkins Jira

Java Developer

FrontEndART Kft.

Mar 2011 - Aug 2013 (2 years 5 months)

Developed a business process flow chart viewer and a static code analyzer GUI using Java, Stripes, Spring Security, and Hibernate.

Java Stripe Spring Security Hibernate Swing

Senior iOS & Android Developer and LLM Engineer

Goosey

Developed an AI-powered cooking assistant with Dockerized FastAPI services, a LangGraph-based multi-agent LLM system, and an iOS app currently in review.