We've been ranked 39th out of #150 in Europe's Leading Start-up Hubs by Financial Times, Statista, and Sifted We've been ranked 39th out of #150 in Europe's Leading Start-up Hubs by Financial Times, Statista, and Sifted
We've been ranked 39th out of #150 in Europe's Leading Start-up Hubs by Financial Times, Statista, and Sifted We've been ranked 39th out of #150 in Europe's Leading Start-up Hubs by Financial Times, Statista, and Sifted

Our Mentors Community

We want to express our gratitude to all our 250+ mentors who believe in #GiveBeforeYouGet.

At Rubik Hub, our mentors are the heartbeat of our community.

Over 250 inspiring individuals — including entrepreneurs, investors, industry experts, and innovators — choose to live by the #GiveBeforeYouGet mindset, generously sharing their time and knowledge to help others grow.
They’ve faced the challenges you’re navigating now — from building products and raising funds to scaling businesses — and they’re here to guide you every step of the way. Each mentor brings a unique mix of experience, insight, and empathy, offering personalized support tailored to your journey.
We’re deeply grateful for their commitment, and proud to have such an incredible network of people who truly believe in lifting others as they climb.

Biography:

In 2021, Oleh began his journey with Flyer One as a Growth Manager, where he focused on enhancing the portfolio’s growth, performance marketing, and B2B sales. He has since transitioned to the role of Investment Manager and Head of Platform, where he oversees pipeline management, startup due diligence, and the development of their community and fund partnerships. Before this, he kick-started his career at Deloitte, attempted to launch his own direct-to-consumer food startup, and engaged in public sector consulting for the development of the Ukrainian Economic Strategy 2030.

Biography:

After graduating from the University of Cambridge, he started his career in Private Equity at Blackrock Private Equity Partners and then transitioned into venture capital. Before moving back to Budapest and joining Portfolion, he worked as a Fintech investor at Fidelity International Strategic Ventures based in London, which span out of Eight Roads Ventures in 2020. At Portfolion, Bence focuses on early-stage investments from Seed to Series B and is especially excited about fintech, infrastructure software, and climate technology.

Biography:

Sonia is a General Partner and the Head of Legal at Roca X, she holds a Master’s Degree in Law & Technology from the University of Oslo and is one of the most experienced VC and startup lawyers in Eastern Europe. She has managed the legal & due diligence aspects of every transaction that Roca X has been a part of since its inception and has also led the team’s efforts to become the first Romanian management team to be registered under the European Venture Capital Regulation.

Biography:

Theo is an Investment Manager at Roca X and has over 3 years of experience in Venture Capital, Startup Growth and Investments and over 7 years of experience within financial institutions. He specializes in strategy, stakeholder management, research and holds a certification in Risk and Crisis Management from The London School Of Economics & Political Science. Theo is actively engaged in Roca X’s portfolio in verticals such as MedTech, EduTech, FinTech & PropTech.

Rytis Jakubauskas

Biography:

Rytis is the CEO & Co-Founder of Palmo, a Berlin-based startup working on technology for more efficient and sustainable urban logistics. Previously, he founded Latana (a Series-B SaaS firm) and led its growth to €2 million+ ARR and 50+ employees. He has also held various leadership roles in mobility firms such as Zoomo, Driv,r and Spiri.

Biography:

Mark was previously a founder before joining an early-stage B2B SaaS company where he scaled from $0 to $20MM in ARR and from Seed to Series C as the go-to-market lead and sales leader. He has brought 5 different products to market, generated millions in revenue individually, and hired and scaled a commercial B2B revenue team.

He spent two-and-a-half years in venture capital investing roles, including with the UVA Seed Fund, Sands Capital Ventures, and Fuel Venture Capital, where he met Vlad. Mark earned his Bachelor’s in Peace & Conflict Studies at Colgate University and a Master’s in Business Administration with concentrations in entrepreneurship, venture capital, and management science at UVA’s Darden School of Business.

Karolina Mrozkova

Biography:

Karolina was born and raised in Prague before moving to New York in her early 20s. She began her professional life at 18, building a successful career as a fashion model. While modeling, Karolina graduated cum laude from NYU Stern School of Business with a dual degree in Finance and Marketing. In 2018, she joined White Star Capital, where she spent five years investing in North America with a focus on consumer internet and marketplace businesses across different verticals.

At Credo, Karolina loves connecting with ambitious and talented founders from the CEE region, sharing a common history, humor, and culture, while being able to provide help, the perspective of a Series A investor, and a bridge to North America.

She loves spending her free time with family and friends, in nature, and staying active. She enjoys running, cycling, horse riding, and snowboarding in the winter. She also picked up chess, where she’s (slowly) learning how not to be a sore loser. Karolina lives between Istanbul and Prague.

Biography:

Valentin Filip is the Managing Partner of Fortech Investments, where he oversees the portfolio of start-ups and the development of partnerships. With over 15 years of experience in technology, startups, product and business development, he’s now using his expertise to actively support founders in achieving their business goals as an investor, strategic partner, and board member.

Biography:

Milana is a Principal at Underline Ventures. She focuses on pre-seed and seed stage startups, supporting Eastern European founders at the earliest stages.She has been a startup fan since day 1 of her career.

Biography:

My true passion is turning ideas into business: I love building my own businesses (tech & service) and helping others build theirs, assisting them with various business aspects through coaching and hands-on help, for which I built a full operations and marketing team. Most of my time is spent on DIBS – a platform to make asset investing accessible, transparent and streamlined – a company I cofounded.

Biography:

SeedBlink is the all-in-one solution for equity management and financing for private European tech companies. My role within the company started with the Operational Investment side of the business and it exponentially changed within the last three years. Now it revolves around helping Founders and VC funds to increase the transparency and understanding the implications of their Equity Ownership. Started with the SeedBlink Equity product from scratch and made it grow in less than 1 year to 100+ clients and 18k recurrent users.

Biography:

Principal at Metis Ventures, leading our efforts in the CEE market. Previously Country Manager at SeedBlink (responsible for the commercial initiatives in our home market). Before SeedBlink, worked at henQ Capital Partners as a venture scout during my undergrad studies. Have lived, worked and studied in Rotterdam, Boston and Bucharest. Graduated BSc. International Business Administration (including an exchange at Babson College) and MSc. Finance & Investments at RSM (with hons).

Biography:

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Biography:

I run an Applied AI Research program for startups and companies. Interested solving hard ML challenges and investing in data-driven startups. Amazon veteran seasoned in software development management of deep-tech products. I built and led an organization of 3 teams processing billions of daily page-views for detecting website robots using machine learning and surfacing website performance optimization opportunities to hundreds of internal customers. Reduced yearly website hosting costs by tens of millions of USD and decreased page-load times by multiple seconds for hundreds of millions of Amazon customers.

Biography:

Customer Success & Operations professional with 20+ years of experience building and developing successful teams. Skilled in building custom processes at scale. Driven, result-focused leader that loves growing people, leveraging technology to increase efficiency, building lasting relationships based on trust, and creating a customer-centric culture.

Biography:

As an Operations Manager at Transylvania Angels Network (T.A.N.), I work with a team of passionate investors who support and mentor early-stage startups in Romania. I oversee the daily operations of the network, including managing the portfolio, organizing events, and communicating with stakeholders. I use my skills in strategic marketing management, communication, and start-up leadership to facilitate the growth and success of the network and the startups. My entrepreneurial spirit and desire to give back to society are driven by my diverse and rich background in sports, hospitality, and design. I graduated from IHTTI School of Hotel Management in Switzerland, where I also gained valuable experience in a 3* Michelin Restaurant and the largest hotel chain in Iceland. I learned how to lead and motivate teams, solve problems creatively, and pay attention to details. I also completed a short course in Business Statistics at Copenhagen Business School, where I enhanced my analytical and data-driven thinking. In addition, I was involved in the rebranding process of Bonas, a newly listed company at BVB, where I discovered my passion for marketing and branding. I also served as a Board Member for Bonas, where I acquired skills in financial analysis, conflict resolution, and decision making.

Biography:

I began my professional journey at Transparency International Romania, then I transitioned to the private sector as a legal advisor for Fashion Days Shopping. Afterwards I held the role of Senior Legal Specialist at Adobe for a few years. From here I jumped at the opportunity to become UiPath’s first in house legal counsel, where I also served as their General Counsel and eventually as the Head of Legal & Compliance Automation. Within UiPath, I spearheaded the Legal Automation Program, leveraging their technology to automate critical legal, compliance, and business processes, later presenting it to the broader market.As General Counsel, I led the design and implementation of UiPath’s legal operations, support, and automation vision. By establishing a streamlined contracting framework and internal standard operating procedures, me and my team were able to accelerate customer onboarding and enhance global compliance standards.In my role as Head of Legal Automation, I drove industry-wide adoption of automation by developing new licensing models, crafting UiPath’s go-to-market strategy for legal automation solutions, and identifying opportunities to enhance legal and compliance processes.Post-UiPath, I founded Goodlegal, a startup offering users a ready-made legal infrastructure. Goodlegal provided free access to essential legal tech tools, content, and support, enabling users to establish their legal organisation swiftly and implement policies and templates company-wide. Regrettably, the company faced challenges in progressing further and the development of the product is currently on hold but I continue to see a definite need in the market for it and hope that I (or someone else) will pick it up again at a later time.Throughout my career, I’ve remained committed to advising and seeking out companies that drive digital transformation and efficiency for their customers. Disrupting the status quo is both my professional ethos and investment philosophy.

Biography:

Tech VC investor with mid-market M&A / Corporate Finance background

Biography:

Marius Istrate is the Chairman of the Board for TechAngels Romania, the largest and oldest Business Angel Network in our country. He was previously the Chief People Officer of UiPath, and the CEO of SkillValue, an IT assessment and IT recruitment platform. His background is in software engineering and telecom.
He’s been a business angel and growth adviser since 2020, with a focus on Romania and the CEE region. Marius is actively supporting founders to build great teams, to set them to perform, and to scale the company culture.

Biography:

Gabriela is currently a financial advisor at Finergreen Romania, specializing in the field of finance with applications in renewable energy and energy transition. She is developing a multi-energy investment expertize being involved in manifold renewable energy projects with different technologies (i.e. solar, wind, storage and hydro). She finds very compelling the linkages between energy and financial markets.

Ioana Văcărașu

Biography:

As Co-founder of Dyver, my journey through the content landscape has been both extensive and transformative. With over 15 years of experience in Content Creation & Strategy, I’ve pioneered SEO content strategies, managed teams of 30+ content experts and developed a deep expertise in Content Marketing, Native Advertising and Branded Content. My proficiency in Search Engine Optimization (SEO) has been a cornerstone of my career, driving measurable success in all projects.Now, my gaze is firmly fixed on the horizon where AI automation melds with content, promising a revolution in our digital dialogue. This shift is fueled by a deep-seated curiosity for the ways technology can refine and redefine our collective narrative. At the confluence of AI and content, my mission is clear: to unearth innovative solutions that empower creators, resonate with audiences and propel businesses. It’s a quest to enrich our digital lexicon, ensuring technology not only advances our story but elevates it, weaving a richer tapestry of connection.

Ovidiu Tuduruta

Biography:

As the CEO and founder of Beesers, I have dedicated myself to creating a company that specializes in innovative healthcare solutions. Under my leadership, Beesers focuses on leveraging technology to improve patient care and streamline healthcare services. With my strong background in entrepreneurship and a passion for advancing healthcare, I have positioned Beesers as a key player in the digital health industry.

Biography:

I am CEO and Co-Founder of CodeWell Group and CodeWell AICo-Founded CodeWell back in 2011, which today represents an award-wining international IT company with offices in US, Norway and North Macedonia. CodeWell’s portfolio is consisted of amazing brands like Sony Music Entertainment, T-Mobile, A1 Telecom Austria and our products are getting featured on best media portals in the world including Forbes, The Huffington Post, Tech Crunch, and many other. Back in 2016 our first chatbot won Product Hunt – Product of the Year Award for the best Chatbot competing against companies like Google, Slack, Duolingo, etc. Realizing the potential set us on a path to create CodeWell AI in order to help other businesses use the full potential of the conversational channels. With CodeWell AI we help companies automate entire departments through AI assistants, reducing costs, driving sales up while at the same time improving customer satisfaction

Ilya Novodvorskiy

Biography:

Experienced Growth Executive with a demonstrated history of working with Startups.