Marius George Ciubotariu is a London-based blockchain professional and entrepreneur known for co-founding Hubble Protocol, a decentralized finance (DeFi) project on Solana centered on the USDH stablecoin, and for co-founding Kamino, a Solana-focused liquidity initiative incubated by Hubble Protocol. His publicly available profiles and media coverage reflect a focus on building DeFi infrastructure and risk-managed products in the Solana ecosystem. ^{[1] [2]}​

Education

Ciubotariu studied Business Economics with European Study at the University of Exeter, where he earned a Bachelor of Arts degree between 2010 and 2014. During his studies, he also completed a certificate in Global Management at Grenoble Ecole de Management from 2012 to 2013. Prior to university, he attended the "Mihai Eminescu" National College in Botoșani, graduating with a high school diploma in mathematics and informatics in 2010. ^[3]

Career

Orientation toward Blockchain and DeFi

Ciubotariu’s visible professional activity on LinkedIn aligns with the Solana ecosystem and DeFi concepts, including engagement with content related to token custody, on-chain risk management, and decentralized financial architecture. This domain focus, alongside later verified roles at Hubble Protocol and Kamino, situates him among founders building lending, liquidity, and stablecoin infrastructure on Solana. ^[3]​

In 2012, he completed a research internship at the Bucharest Stock Exchange, where he worked across several departments and contributed to research comparing the exchange with larger international markets. He later served as a financial sector analyst for the Grenoble Ecole de Management Investment Club from 2012 to 2013, focusing on leveraged products tied to the CAC 40 Index and conducting technical and fundamental market analysis using Bloomberg terminals.

Ciubotariu joined Morgan Stanley in 2013 as a private wealth management intern, where he assisted with portfolio reporting, liquidity management, reconciliations, and process optimization involving SQL-based reporting systems.

From 2014 to 2016, he worked at Bloomberg LP as a fixed income and derivatives product specialist, specializing in interest rate derivatives and structured products. His responsibilities included derivative pricing, advising clients on software integrations using the Bloomberg API, and developing custom technical analysis tools.

In 2016, he became a senior software engineer at Bloomberg LP. In this role, he contributed to cross-asset derivatives pricing systems using C++ and Python, developed derivatives lifecycle management infrastructure in OCaml, and worked on applications and infrastructure using Rust. He also participated in internal Rust training initiatives and mentored colleagues and interns. ^{[1] [3]}