SECIL YENISEN
Head Of Marketplace Onboarding &New Acquisition & Sales Growth
Ağrı,04
Summary
Dynamic Senior Marketplace and Sales Growth Leader with over 15 years of experience in e-commerce, banking, and technology sectors. Proven track record in marketplace onboarding, merchant acquisition, and revenue growth, complemented by strong leadership skills in managing large-scale teams and budgets. Recognized for optimizing onboarding processes and driving long-tail sales growth while spearheading monetization strategies that significantly increase profitability. Skilled at fostering innovation and strategic partnerships to enhance market presence and achieve sustainable business success.
Overview
22
22
years of professional experience
3
3
Certifications
2
2
Languages
Work History
Head of Marketplace Onboarding & SalesGrowth
Hepsiburada.com
Istanbul
11.2015 - Current
- Launched Hepsiburada’s Marketplace operations in 2015, leading full-cycle onboarding, contracting, and training.
- Directed cross-functional telesales and merchant support teams (165 FTE, 120M TRY annual budget), both in-house and outsourced.
- Reduced onboarding duration by 47% (2021–2023) through process redesign and digital transformation.
- Achieved 60% headcount savings by integrating legal, category, and RPA technologies into merchant onboarding.
- Delivered +29M new SKUs via Merchant & Selection GAP projects, boosting top and long-tail merchant contributions.
- Increased HepsiAds sales by 105% YoY (H1 2025 vs. H1 2024), generating 55% of total platform ad revenues.
- Secured additional 30M TRY ad revenue in Q2 2024 with a lean team of three, setting record sales timing.
SAP Enterprise Contract Management & Operations Manager
Peon Information & Consulting Services
12.2009 - 11.2015
- Delivered SAP implementation projects for clients including IBM, Deloitte, and Aslanoba Foods, focusing on the design and configuration of contract management systems, end-user catalogs, and testing frameworks.
- Trained key users and ensured full documentation for system adoption.
- Supervised projects with strict financial targets, ensuring on-time delivery for retail clients.
Alternative Markets & Investment Banking Executive
Denizbank Financial Services Group
Istanbul
04.2003 - 11.2009
- Managed performance monitoring and reporting for investment banking telemarketing operations.
- Developed process improvements by adopting new technologies and market analysis.
- Reported sales and collections performance to executive management on a monthly basis.
Education
Faculty of Economics
Anadolu University
Skills
- Marketplace Strategy & Merchant Lifecycle Management
- Sales Growth & Monetization (HepsiAds)
- Contract Management & Compliance (SOX, Treasury Regulations)
- Process Optimization & RPA Integration
- Proje Yönetimi
- Team Leadership & Budget Ownership (120M TRY)
- Data-Driven Sales & A/B Testing
- Tools: Salesforce, Power BI, Jira, SAP, Genesys, Avaya
Certification
Salesforce CRM Advanced Training
Timeline
Head of Marketplace Onboarding & SalesGrowth
Hepsiburada.com
11.2015 - Current
SAP Enterprise Contract Management & Operations Manager
Peon Information & Consulting Services
12.2009 - 11.2015
Alternative Markets & Investment Banking Executive
Denizbank Financial Services Group
04.2003 - 11.2009
Faculty of Economics
Anadolu University