# Peter Kaleta > Staff Full-Stack Engineer | 15+ Years Driving Scalable Engineering & Product Delivery | React Native · Node · AI/LLM | Ex-Riot Games, ESA Location: Poland, Poland Profile: https://flows.cv/peterkaleta Over 15 years of experience shipping products (RiotGames, Turo) and building teams (Masterplan, Egnyte) from the ground up. I’ve worked with early‑stage R&D platforms (crypto space) and mature products (League of Legends) serving millions of users. I'm looking to join a company where I can develop the product and the teams around it as a technical leader while staying hands-on with the code as an IC. I'm at my best working at the intersection of business, product, and engineering - using Domain-Driven Design to build shared language and turn complex domains into clean, well-bounded software. Reach me at mail@peterkaleta.com ## Work Experience ### Staff Engineer @ Co:Create Jan 2023 – Present | New York, United States - Migrated legacy web app to a React Native App. - Implemented a design system handling web and native clients with 80% shared component code. - Supported introduction of AI‑agentic environment generating 75%+ of production code - Led Domain Driven Design Architecture workshops for the entire company to align business flows and engineering architecture. Via GessoLabs (crypto asset and loyalty platform): - Shipped a dev‑centric API abstracting ERC‑1155/ERC‑20/ERC‑721contracts for downstream teams. ### Senior Full Stack Engineer @ Collective Jan 2021 – Jan 2022 | Florida, United States - Delivered the community discussion layer for on-chain governance and threaded conversations - Replaced REST with GraphQL to improve team's velocity by reducing data-fetching complexity - Led a distributed engineering team across 3 time zones, the full software development lifecycle (SDLC) ### Head of Product @ Masterplan.com Jan 2020 – Jan 2021 | Berlin, Germany Promoted from Lead Mobile Engineer after demonstrating both technical and organizational leadership. - Built the product department from the ground up including PMO, product research, UX & Design - Designed team topology (based on the Spotify model), including cross-functional squads and a product-guild system - Established roadmapping practices, user research workflows, and RICE-based feature prioritization - Introduced OKR framework, aligning engineering output with business objectives across the entire company ### Lead Mobile Engineer @ Masterplan.com Jan 2019 – Jan 2020 | Berlin, Germany - Singlehandedly developed Masterplan's mobile application MVP from zero to production - Built a mobile team to release the iOS and Android applications matching web app’s scope - Implemented number of additional features including offline and car modes for video and audio learning experiences - Promoted to Head of Product based on combined technical delivery and organizational leadership ### Senior JavaScript Developer @ Masterplan.com Jan 2018 – Jan 2019 | Berlin, Germany ### Senior Software Engineer @ Turo Jan 2018 – Jan 2019 | Phoenix, Arizona, United States - Led the UI client rewrite & migration across Turo.com, the world's largest peer-to-peer car sharing marketplace. - Established Redux patterns, middleware architecture, and testing standards adopted by the broader frontend organization. ### Senior Full Stack Engineer @ X-Team Jan 2014 – Jan 2019 | Victoria, Australia Embedded senior engineer within X-Team's distributed consulting model, delivering across multiple high-profile client projects including Riot Games and Turo. - Embedded senior engineer within X-Team’s distributed consulting model, delivering across high‑profile clients such as Riot Games and Turo. - Delivered and maintained projects from early‑stage MVPs to production platforms serving millions of users. - Created and led X‑Team’s “Remote Hacker Houses” initiative, organizing in‑person gatherings for dozens of engineers across multiple countries worldwide with locations such as (Colombia, Brazil, US, Portugal, Spain, Moldova, Russia, Poland, Dominican Republic ...) ### Senior Frontend Engineer @ Riot Games Jan 2015 – Jan 2017 | Los Angeles County, CA - Created the new League of Legends launcher as part of a 70-person agile team distributed across multiple time zones. - Contributed to one of gaming's most widely-used desktop applications, serving millions of daily active players - Worked within a large-scale distributed agile environment with strict quality and release processes ### Frontend Team Lead @ Egnyte Jan 2011 – Jan 2014 | Poznań Led the frontend engineering team at Egnyte, an enterprise cloud file management platform serving 16,000+ businesses. - Led and executed a complete frontend rewrite - from a monolithic frontend to modularized Backbone.js architecture - Built and led a frontend team, establishing code review practices, testing standards, introduced a design system library - Delivered multiple sub-projects (file preview, sharing UI, admin dashboard) - Mentored 4 junior engineers, 3 of whom were promoted to mid-level within 12 months ### University Lecturer - UX & Prototyping @ School of Form Jan 2013 – Jan 2014 | Poznań - University Lecturer in UX & Prototyping, teaching core concepts of user experience, prototyping, and iterative product development. - Designed and delivered a curriculum focused on prototyping, MVPs, and lean product validation tailored to undergraduate and graduate students. ### Frontend Developer @ eConsulting Jan 2010 – Jan 2011 | Warsaw, Mazowieckie, Poland ### Frontend Team Lead @ European Space Agency - ESA Jan 2008 – Jan 2010 Led the frontend team on a joint ESA/NASA initiative providing a communication mesh between ground stations and satellites in orbit. - Architected and delivered the admin dashboard for managing real-time communication links between earth stations and orbital satellites - Led a team of 5 frontend engineers in coordination with backend and systems teams across European ESA institutions ## Education ### Master's Degree in Computer/Information Technology Administration and Management Poznan University of Technology ### Postgraduate Degree in Investment Banking SGH Warsaw School of Economics ### Applied Mathematics Poznan University of Technology ### Bsc in Computer Science Poznan University of Technology ## Contact & Social - LinkedIn: https://linkedin.com/in/peterkaleta - Portfolio: https://peterkaleta.com - GitHub: https://github.com/peterkaleta --- Source: https://flows.cv/peterkaleta JSON Resume: https://flows.cv/peterkaleta/resume.json Last updated: 2026-04-18