# J Ji Hyun Jeong > Building Persistent Memory Systems for LLMs Location: San Francisco, California, United States Profile: https://flows.cv/jjihyunjeong I'm building persistent memory systems for AI companions — solving how AI agents retain, organize, and recall what matters across conversations over time. This is a hard problem at the intersection of retrieval, knowledge management, and conversational AI, and I believe the teams that crack it will define the next generation of AI products. Before this, I spent years in mobile gaming as a product leader, where I launched products that reached iOS top 50 grossing and scaled to multi-million dollar monthly revenue. That work was ultimately about the same core question: how do you build systems that understand users deeply over time and respond accordingly? I'm always interested in connecting with others working on memory, personalization, and long-term context for LLMs. ## Work Experience ### Founder @ Rekallix Jan 2025 – Present Building persistent memory systems for AI companions — how AI agents retain, organize, and recall what matters across long-term interactions. ### Product Lead @ Bellota Labs Jan 2024 – Present | San Francisco Bay Area • Product Management for Social Games with a Q1 2025 Launch Target • Overseeing Monetization Strategies, Analytics, and Backend Tool Development • Driving Market Research and Competitive Analysis ### Lead Product Management Consultant @ Mobile Game Consulting Jan 2019 – Present | San Francisco Bay Area • Provided result-oriented and data-driven expertise in Product Management, Analytics, Engagement, Retention, and Monetization for game developers and publishers in North America and Asia. • Provided market analysis and developed marketing strategy recommendations for mobile devices. • Provided guidance on leveraging artificial intelligence for development and data analysis. ### Group Product Manager @ Mushroom.gg Jan 2022 – Jan 2023 • For social media for gamers, built a strategic roadmap for the core product loop and unique selling points • Developed a framework for market analysis and product analysis • Conducted analysis and maintain the health of the economy and product ecosystem ### Senior Product Manager @ Electronic Arts (EA) Jan 2020 – Jan 2021 | San Francisco Bay Area • Product Management for free to play Sports game at Glu Mobile • Developed launch strategy and built in-game events and sales roadmap • Collaborated with key stakeholders to create, manage, and execute analysis and implementation of key in-game growth initiatives • Prioritized and executed experiments and in-game content changes to increase user engagement and monetization • Monitored performance of in-game content, identified patterns, and prioritized feature development decisions based on in-depth data analysis ### Senior Product Manager @ GSN (TV & Games) Jan 2014 – Jan 2018 | San Francisco Bay Area • Acknowledged for driving full lifecycle development and enhancement of 2 products that have become the company’s 2 fastest growing mobile games. • Expanded features and platforms of the multimillion-dollar mobile game, TriPeaks Solitaire, resulted in 100% revenue growth and 50% increase in daily active users and ARPU each year. • Led and executed development, beta testing, and launch of multi-platform mobile casino game, GSN Grand Casino on both Android and iOS. • Compiled, analyzed, and reported on key game metrics such as retention, monetization, and virality engagement rates, providing vital business intelligence and recommendations for current/future product direction. • Conducted A/B and multivariate testing. Interface extensively with internal/external partners and stakeholders regarding product releases and implementation plans. • Coordinated collaborative efforts with 18 multi-disciplinary team members including engineers, designers, artists and QAs. • Defined and translated business goals into requirements and design specifications with focus on optimizing player/customer experience and product performance. • Partnered with product owners in formulating product vision, roadmaps and strategies in alignment with overarching corporate growth objectives. • Increased Ads Revenue from scratch to multimillion dollars in yearly revenue. • Drived key growth projects successfully in engagement, monetization and marketing ### PM / Producer @ PlayNext (formerly Aeria Games & Entertainment) Jan 2011 – Jan 2014 | San Francisco Bay Area • Managed portfolio of 5 mobile games, 8 downloadable MMOs and 20 browser games. • Skillfully coordinated 5 direct reports while driving critical product enhancements and innovations for gaming platform with 21 million+ users and games published in 9 languages and 20+ countries. • Credited with spearheading successful launch of 7 new games in 6 months; pivotal driver of 100% team revenue increase in 4 months. • Performed in-depth data analysis by running queries and creating reports, and developed product strategy. • Coordinated with Department Managers in deploying vision and roadmap for key product feature sets, and best practices for Agile game development, support, marketing, community building, and sales ensuring consistent achievement of project milestones and deadlines. Organized and directed virtual item sales promotions, in-game events, and paid marketing. Led discovery and evaluation of new games/crucial members to determine and prioritize launch strategy. • Acknowledged as key contributor to overall product quality, visuals, sound, challenge level, and functionality. • Resolved escalated customer service issues, and authored game documentation/ release notes for product updates. • Continuously evaluated, improved, and expanded gaming community by contributing to official/external forums and websites, generating community feedback reports, moderating message boards, and developing customized web content. • Performed competitor analysis. A short list of games that I managed - Strategy: Caesary, Wartune, Call of Gods, Golden Age, Ministry of War - RPG: Eden Eternal, Grand Fantasia, Starlight Saga - Trading Card: Immortalis, Monster Paradise - FPS: AVA, Gunz Duel, Special Force ### Producer @ Entertainment Technology Center - Carnegie Mellon University Jan 2010 – Jan 2010 | Greater Pittsburgh Area • Pursued and obtained specialized Master's Degree program in interdisciplinary field of entertainment technology from Carnegie Mellon University's Entertainment Technology Center, with focus on hands-on, collaborative project initiatives. • Project with EA/Maxis (Sims developer): Designed and developed vampire-themed simulation game utilizing toolset being developed by Maxis. Delivered critical advice and direction for strategic product vision and innovation. • Project with Lockheed Martin: Challenged with designing Augment Motion Control game utilizing biofeedback to deliver an immersive gaming experience, taking into account physical and emotional states such as player’s heart rate, brain wave, and galvanic skin response (GSR). Projected to serve as potential tool for alleviating post- traumatic stress disorder. ### Xbox Reviewer @ Microsoft Jan 2007 – Jan 2007 | Seoul, Korea • Key contributor to multimillion dollar revenue generation by facilitating testing and subsequent release of major games (Viva Pinata, Forza 2). • Deployed superior observation and game assessment expertise to consistently identify elusive glitches overlooked by others. • Recognized pivotal driver of on-time game completion, aggressively meeting project milestones within fast-paced, deadline-driven environment. ### Supply Sergeant @ US Army Jan 2003 – Jan 2005 | Camp Long • Responsible for multimillion dollar worth of organizational provided equipment, training and personal welfare of the unit • Coordinated logistical support for both national and international joint training • Proposed and implemented a new quarterly inspection process to increase efficiency by 30% ## Education ### Master in Entertainment Technology Carnegie Mellon University ### Data Mining Using SQL UC Berkeley Extension ### Exchange Student in Arnhem Business School, Netherlands HAN University of Applied Sciences ### Bachelor in Business Administration Ajou University ## Contact & Social - LinkedIn: https://linkedin.com/in/j-ji-hyun-jeong-10516021 - Website: https://rekallix.com --- Source: https://flows.cv/jjihyunjeong JSON Resume: https://flows.cv/jjihyunjeong/resume.json Last updated: 2026-04-08