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Hi, I’m Cosma Rubben. I’m a growth-focused professional with experience in business development, enterprise sales, and AI-driven product strategy across fintech, crypto, and tech platforms. I enjoy turning complex challenges into actionable partnerships and scalable solutions that drive measurable ROI. I thrive in cross-functional teams, aligning engineering, sales, and marketing to deliver client value, optimize processes, and accelerate product adoption across startups and larger organizations.…Hi, I’m Cosma Rubben. I’m a growth-focused professional with experience in business development, enterprise sales, and AI-driven product strategy across fintech, crypto, and tech platforms. I enjoy turning complex challenges into actionable partnerships and scalable solutions that drive measurable ROI. I thrive in cross-functional teams, aligning engineering, sales, and marketing to deliver client value, optimize processes, and accelerate product adoption across startups and larger organizations.

Cosma Rubben

Marketing Analyst, Product Designer, Brand Designer, +2

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Hi, I’m Cosma Rubben. I’m a growth-focused professional with experience in business development, enterprise sales, and AI-driven product strategy across fintech, crypto, and tech platforms. I enjoy turning complex challenges into actionable partnerships and scalable solutions that drive measurable ROI. I thrive in cross-functional teams, aligning engineering, sales, and marketing to deliver client value, optimize processes, and accelerate product adoption across startups and larger organizations.…Hi, I’m Cosma Rubben. I’m a growth-focused professional with experience in business development, enterprise sales, and AI-driven product strategy across fintech, crypto, and tech platforms. I enjoy turning complex challenges into actionable partnerships and scalable solutions that drive measurable ROI. I thrive in cross-functional teams, aligning engineering, sales, and marketing to deliver client value, optimize processes, and accelerate product adoption across startups and larger organizations.

Available to hire

Hi, I’m Cosma Rubben. I’m a growth-focused professional with experience in business development, enterprise sales, and AI-driven product strategy across fintech, crypto, and tech platforms. I enjoy turning complex challenges into actionable partnerships and scalable solutions that drive measurable ROI.

I thrive in cross-functional teams, aligning engineering, sales, and marketing to deliver client value, optimize processes, and accelerate product adoption across startups and larger organizations.

Skills

Microsoft Excel

Data Visualization

Tableau

Experience Level

Microsoft Excel

Expert

Data Visualization

Expert

Tableau

Expert

Language

German

Fluent

English

Fluent

Work Experience

Business Development and Partnerships Associate at WINTERMUTE

January 1, 2026 - Present

Led client discovery and onboarding across exchanges, token projects, and hedge funds, guiding counterparties through the full engagement process with Wintermute's liquidity services. Developed structured product materials for institutional clients including presentations and indicative pricing for covered calls and collar strategies. Built internal AI tools including a real-time dashboard tracking gold prices across TradFi and crypto venues, and a web scraper monitoring new token listings.

Enterprise Sales Intern at PAYPAL

January 1, 2025 - January 1, 2025

Delivered tailored commercial analyses for £2bn+ enterprise portfolios, improving PayPal feature adoption rates. Conducted root-cause analysis on 30+ declining merchant accounts, identifying £2m+ in lost opportunities. Streamlined CRM data and pipeline reporting, enhancing forecasting accuracy for two major client books.

AI Product Strategy Project at CLOUDERA

January 1, 2025 - January 1, 2025

Partnered with NGO and institutional clients to assess data workflows and system operations, identifying inefficiencies and technical gaps. Produced business requirement documents, stakeholder reports, and technical briefing materials for cross-functional teams. Coordinated between engineering and business units to clarify requirements and ensure consistent communication across teams. Developed ROI and efficiency reports showing 30–40% time savings, contributing to client satisfaction and product adoption.

Marketing Analyst at GITTI

January 1, 2024 - January 1, 2024

Conducted market and competitor analyses to identify product whitespace and inform brand strategy. Managed cross-team communication between marketing and product functions to align launch timelines and ensure data accuracy in reports. Produced weekly performance reports and summaries to support strategic decision-making.