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Fintech Venture Building
SIGMA TEAM
Hosein Rostami
Fintech Growth & Business Strategy
Core Team / Strategic Growth
Hosein Rostami operates at the intersection of fintech, business strategy, venture building, growth, product development, and commercial operations.
Hosein Rostami is a fintech business builder and growth strategist working across digital assets, investment platforms, payments, exchange ecosystems, and financial infrastructure. His current work focuses on building ventures, designing scalable growth systems, developing regional business operations, structuring KOL and affiliate networks, creating B2B and B2B2C models, and connecting product, distribution, partnerships, and operations around measurable commercial outcomes.
Core Team🇦🇪 Dubai, United Arab EmiratesEnglishPersian
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PROFILE OVERVIEW
Editorial Brief
Hosein Rostami operates at the intersection of fintech, business strategy, venture building, growth, product development, and commercial operations.
After several years in senior marketing leadership roles within major Iranian fintech and cryptocurrency platforms, his career evolved from managing individual marketing functions toward building complete business and growth systems. Today, his work spans multiple financial ventures and operating environments, including digital-asset exchanges, investment platforms, payment services, commodity-backed products, KOL and affiliate ecosystems, and B2B financial infrastructure.
As Co-Founder and Board Member of Gerami, Hosein is involved in building a multi-asset investment platform designed to make access to commodities and alternative assets simpler and more accessible. His work covers business strategy, growth architecture, product direction, team development, partnership models, new asset opportunities, and the design of B2B and B2B2C services. At Gerami, he works across the boundaries of product, marketing, business development, operations, finance, support, risk, and compliance. His role is centered on identifying new opportunities, turning them into clear business models, assigning ownership, defining measurable outcomes, and creating the organizational structure required to execute them.
A major part of his work involves designing growth systems that extend beyond short-term acquisition. These systems connect user onboarding, activation, first transaction, repeat activity, portfolio development, retention, reactivation, referral, and partner-driven distribution.
Within the international exchange ecosystem, Hosein works on regional business development, KOL partnerships, affiliate operations, high-volume trader acquisition, and strategic relationships with trading communities and financial businesses. His approach to KOL and affiliate growth is built around long-term commercial partnerships rather than one-off promotional campaigns. This includes partner identification, negotiation, onboarding, activation, technical enablement, incentive design, volume development, retention, and continuous relationship ownership.
He has also worked on developing separate commercial motions for KOLs and educators, high-volume direct traders, exchange and platform partnerships, and regional business-development teams, recognizing that each requires its own operating model, incentive structure, and performance indicators.
Through his roles across Gerami, LBank, PayStar, VisaPay, and Sigma, Hosein has developed a multidisciplinary perspective on how financial products scale. He combines business-model thinking with distribution strategy, product understanding, team design, data, partnerships, and operational execution. Rather than approaching growth as a collection of campaigns, he treats it as an operating system: a coordinated structure of people, processes, incentives, data, technology, and commercial relationships.
His earlier experience at ZarinPal provided the foundation for this work, giving him hands-on exposure to large-scale user growth, marketing leadership, sales development, customer analytics, brand transformation, and cross-functional execution. His current focus is on applying that experience to build new ventures, market infrastructure, and scalable financial-growth ecosystems.
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EXPERTISE
Core Capabilities
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Business Model Development
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Growth Operating Systems
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Product & Growth Strategy
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KOL & Affiliate Infrastructure
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Regional Business Development
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B2B & B2B2C Strategy
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Strategic Partnerships
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Team & Organizational Design
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Commercial Model Development
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Market Expansion
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Cross-Functional Execution
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SERVICES
Engagement Focus
Fintech and digital-asset venture development01
Growth operating-system design02
Business-model and revenue-model development03
KOL and affiliate infrastructure04
Regional business-development operations05
High-volume trader and VIP programs06
B2B and B2B2C partnership models07
Product, growth, and distribution alignment08
Commercial incentive structures09
Team design and ownership frameworks10
Market-entry and expansion strategy11
Strategic advisory for financial platforms12
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CAREER TIMELINE
Trajectory
Present
Core Team / Strategic Growth
Sigma
As a member of Sigma’s core team, Hosein contributes to the development of growth infrastructure for exchanges, brokers, financial platforms, KOLs, affiliates, and trading communities. His work focuses on connecting business strategy with executable growth operations across partnerships, regional market expansion, KOL and affiliate systems, product requirements, commercial models, and organizational execution. Within Sigma, he brings an operator’s perspective shaped by experience on both sides of the ecosystem: building financial platforms internally and developing external distribution, partnership, and business-development networks around them.
2025 — Present
Co-Founder & Board Member
Gerami
Co-founded Gerami, a financial platform focused on expanding access to commodity-backed and alternative investment products through simple, fractional, and digitally managed experiences. His responsibilities span business and growth strategy, product direction and new asset development, B2B and B2B2C opportunity design, affiliate and referral infrastructure, KOL and distribution-channel development, organizational and team design, partnership and commercial models, coordination across product, marketing, finance, operations, risk, legal, and support, and development of measurable acquisition, activation, retention, and referral systems. He also works on expanding Gerami beyond a consumer investment application by exploring infrastructure services, APIs, white-label solutions, embedded asset products, and strategic partnerships with other businesses.
2024 — Present
Business Development Manager / Marketing Manager, Persian Market
LBank
Works across regional marketing, business development, exchange growth, KOL partnerships, affiliate operations, high-volume trader acquisition, and strategic partnerships. His work includes identifying and recruiting KOLs, traders, educators, and community operators; designing performance-based partnership structures; negotiating commissions, incentives, trial periods, and commercial terms; onboarding and activating partners; supporting technical and operational partner requirements; developing trading volume and partner-generated revenue; building retention and reactivation mechanisms; creating differentiated models for KOLs, VIP traders, and exchange partners; and supporting regional expansion and market-specific execution. His focus is not limited to partner acquisition. He works across the full relationship lifecycle from initial dialogue and trust-building to activation, volume development, problem-solving, and long-term commercial growth.
2025 — Present
Sales & Marketing Lead
PayStar
Contributes to the development of PayStar’s commercial direction, sales and marketing structure, acquisition systems, and financial-service growth opportunities. His work focuses on aligning sales, marketing, customer acquisition, partnerships, and product positioning around measurable business outcomes.
2024 — Present
Board Member
VisaPay
Supports VisaPay’s strategic direction across financial services, payments, digital assets, product opportunities, commercial partnerships, and long-term business development. His involvement includes evaluating new business models, strengthening the company’s market positioning, and connecting established operational capabilities with new fintech opportunities.
2019 — 2024
Marketing Leadership
ZarinPal
Before moving into venture building and broader business leadership, Hosein held a senior marketing role at ZarinPal. This period gave him hands-on experience in large-scale user growth, performance marketing, branding, sales development, customer analytics, data-driven growth, team leadership, and cross-functional coordination. These experiences became the operating foundation for his later work across venture building, digital assets, partnerships, product strategy, and financial-growth infrastructure.
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GLOBAL FOOTPRINT
Location / Languages / Markets
Location
🇦🇪 Dubai, United Arab Emirates
Languages
EnglishPersian
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SOCIAL & PROFESSIONAL LINKS
Verified Channels
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PERSONAL NOTE
“I build the systems that connect financial products, distribution networks, commercial partnerships, and execution.”
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WORK WITH SIGMA
Continue through Sigma’s official channel for partnerships and strategic collaboration.