Marcin Kazmierczak
Marcin Kaźmierczak is a Polish entrepreneur, co-founder and chief operating officer (COO) of RedStone Oracles, a modular blockchain oracle network.[3] He is also a co-founder and organizer of ETHWarsaw, a blockchain conference and hackathon described as one of the largest Web3 events in Central and Eastern Europe.[3] He speaks regularly at global crypto events and was included in the 2024 Forbes Poland “30 Under 30” list in the business category.[4]
Early Life & Education
Marcin Kaźmierczak grew up in Poland and became interested in cryptocurrencies while studying quantitative economics, after being introduced to Bitcoin and Ethereum by his older brother in 2017.[3] He graduated from the Warsaw School of Economics (Szkoła Główna Handlowa) in 2020 with a specialization in e‑business.[5] He then pursued MBA studies at National Chengchi University (NCCU) in Taipei, where his thesis focused on blockchain technology and its business use cases.[3]
Career
Marcin Kaźmierczak’s career combines early work in blockchain analytics, product management roles at large technology companies, and entrepreneurship in decentralized finance infrastructure. He co-founded RedStone Oracles in 2021 and has served as its COO, while also co-founding ETHWarsaw and contributing to broader Web3 community-building in Central and Eastern Europe.[5][3]
Early Career
In 2017, while studying quantitative economics, Kaźmierczak began exploring cryptocurrencies and blockchain technology and decided to focus his professional path on the sector.[3] In 2018 he joined the Polish Accelerator of Blockchain Technology, where he worked on tools to help Polish institutions analyze and track Bitcoin transactions.[3] After his studies in Taipei, he worked as a product manager at Google Cloud, gaining experience with large-scale cloud infrastructure and data products.[5]
Alongside his early professional roles, Kaźmierczak co-founded Warp Contracts (later involved in the ao_builders ecosystem), which focused on smart contract infrastructure.[3] In public reflections on his “seven years in crypto,” he has described a progression from individual learning and small-scale experimentation, through participation in hackathons and side projects, to building venture-funded infrastructure startups as a full‑time founder.
RedStone Oracles
In 2021, Kaźmierczak co-founded RedStone Oracles with engineer Jakub Wojciechowski and took on the role of COO.[3] RedStone is a modular blockchain oracle network that provides off-chain data feeds, primarily for decentralized finance (DeFi) applications. By 2024–2025, RedStone reported serving more than 100 blockchains and securing over $8 billion worth of on-chain assets for around 160–170 business clients, including DeFi protocols and tokenization platforms.[6][5]
RedStone has been described as one of the fastest-growing oracle providers globally and, by client count, as the third-largest oracle network after Chainlink and Pyth.[5] Its clients in real‑world asset and tokenization markets include tokenized funds and products such as BlackRock’s BUIDL, Apollo’s ACRED, VanEck’s VBILL and Hamilton Lane’s SCOPE, often via partnerships with tokenization platforms like Securitize.[5][7] In interviews, Kaźmierczak has outlined a strategy focused on low-latency data delivery, support for new chains including Solana and Sui, and custom oracle feeds for emerging DeFi and real‑world asset use cases.[8][5]
RedStone’s funding history includes a $525,000 pre‑seed round in April 2021, followed by a $7 million seed round in 2022 led by Lemniscap with participation from investors including Blockchain Capital, Coinbase Ventures and Maven11.[3] In June 2024, the company announced a $15 million Series A round led by Arrington Capital, bringing its total funding to around $22 million.[6]
ETHWarsaw and Community Work
Kaźmierczak is a co-founder and organizer of ETHWarsaw, a conference and hackathon focused on Ethereum, blockchain and related technologies.[3] ETHWarsaw is described as the biggest Web3 conference and hackathon in Central and Eastern Europe, bringing together builders, protocol teams and investors through talks, workshops and prize-backed hacking competitions.[1] The event series is connected to the wider ETHWarsaw community initiative, which organizes meetups, legal and regulatory events under the ETHLegal brand, and activities at the Kolektyw3 co‑working space in Warsaw.
Talks and Interviews
Kaźmierczak appears frequently at industry conferences and in media interviews to discuss blockchain oracles, DeFi infrastructure, and founder experiences. His public comments focus on the technical design of oracle systems, the growth of institutional tokenization, and practical advice for entrepreneurs building in Web3.[2][8]
Consensus 2024: Pull vs. Push Oracles
At Consensus 2024 in Austin, Texas, Kaźmierczak co-led a session titled “Pull vs. Push Oracle: Crash Course and Trade‑Offs Comparison,” where he gave a practical breakdown of push‑ and pull‑based oracle architectures and how they affect latency, costs and security for DeFi protocols.[2] He explained how RedStone combines push and pull approaches for different use cases, including assets such as liquid staking tokens (LSTs) and value‑accruing stablecoins, and compared market‑rate and contract‑rate pricing methods in that context.[8] He also outlined trade‑offs around liquidation risk and oracle‑extractable value (OEV), describing how design choices in data delivery and update frequency can influence both user safety and the scope for value extraction by arbitrageurs and liquidators.[5]
ETHWarsaw 2024 and Media Interviews
At ETHWarsaw 2024, Kaźmierczak delivered a talk aimed at aspiring Web3 founders, structured as “10 tips” based on his experience building RedStone and organizing community events. He presented a ten‑point framework that covered studying DeFi basics; wallet and seed‑phrase security; understanding Ethereum and layer‑1 versus layer‑2 designs; stablecoins; DEX mechanics; lending and liquidation; staking, including liquid staking; the roles of bridges and oracles; and basic valuation concepts such as market capitalization versus fully diluted valuation when evaluating projects. He also highlighted the importance of experimenting with small on‑chain positions and building practical familiarity with tools and protocols before attempting to launch products or raise capital.
This video features Kaźmierczak’s ETHWarsaw 2024 talk offering practical tips for new founders.
In 2024–2025 interviews, including a profile in The Big Whale, a CryptoNews Spotlight episode, an IBTimes interview and a Forbes Poland startup feature, Kaźmierczak explained RedStone’s role in the global oracle market and the broader tokenization ecosystem.[5][8][7][6] He described how RedStone provides low‑latency price feeds for more than 100 blockchains, supports real‑world asset tokenization and private credit markets, and aims to further reduce execution times for oracle updates. These interviews also touch on his views about institutional adoption of tokenization and the importance of modular oracle designs for emerging DeFi and RWA protocols.
This video focuses on RedStone’s oracle architecture and Kaźmierczak’s views on oracle design and use cases.
Awards and Recognition
In 2024, Forbes Poland included Marcin Kaźmierczak in its “30 Under 30” list in the business category, citing his role as co‑founder of RedStone, one of the largest oracle providers globally.[4] Forbes highlighted RedStone’s work in securing data feeds for dozens of blockchains and its revenue growth following a $15 million funding round.[4]
In 2025, Forbes Poland named RedStone the number‑one startup in Poland, describing it as a rapidly growing oracle network serving more than 100 blockchains, securing over $8 billion in assets, and working with around 160 business clients.[6] In the accompanying interview, Kaźmierczak discussed RedStone’s trajectory, funding of roughly $22 million, and its ambition to expand its share of the global oracle market.[6]
