Berkay İşlek-Bachelor of Industrial Engineering
Check rate
Experience
Product Manager
Wixot
- Managing casual puzzle games and a brain training app.
- Implementing monetization strategies including subscriptions and IAP.
- Utilizing tools such as Firebase, GA4, Amplitude, and ByteBrew to make data-driven decisions that improve product performance and player retention.
- Continuously iterating on product features based on user feedback and market demands.
Associate Publishing Manager
Netmarble Turkey/Joygame
- Managed hybrid casual game launches, ensuring smooth market entry and scale-up.
- Collaborated with cross-functional teams to optimize user acquisition strategies and identified growth opportunities in target markets.
Junior Data Analyst
Netmarble Turkey/Joygame
- Performed data analysis with tools like Looker and Amplitude to support publishing decisions and KPIs.
- Analyzed player performance, assessed key metrics, and created reports that provided actionable insights to influence game performance.
Junior Business and Data Analyst
ÇiçekSepeti/Mizu
- Conducted market research and analyzed sales data to optimize e-commerce performance.
- Utilized GA4 and Looker to generate reports and visualize business metrics, identifying trends that supported strategic decision-making and improved competitive positioning.
Data Scientist Trainee
KocDigital
- Built data models and conducted statistical analysis for digital transformation projects.
- Tasks included data cleaning, feature engineering, and developing predictive models to assist decision-making and enhance operational efficiencies.
Statistician
Esporin
- Created statistical content for social media platforms related to League of Legends.
- Produced engaging visual content based on performance indicators and statistical analysis to increase community engagement and brand awareness.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Media and Entertainment, and Retail.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Business Intelligence, Product Development, Marketing, and Strategy.
Summary
Dynamic Product Manager with a strong analytical background and 4 years of experience across mobile gaming, app publishing, and e-commerce. Skilled in product development and monetization strategies, including subscription-based models, in-app purchases, and in-app advertising. Experienced in defining and evaluating key product KPIs, designing and interpreting A/B tests, and managing products through all stages of the lifecycle. Strong collaborator with developers, designers, and marketing teams to drive growth and performance. Solid understanding of APIs, user funnels, and feature rollouts, with a focus on optimizing user journeys and delivering scalable, high-impact solutions in fast-paced digital environments.
Skills
- Data Analytics: Python (Pandas, Numpy), Sql
- Bi & Analytics Tools: Tableau, Google Analytics (Ga4), Firebase, Amplitude, Looker, Bytebrew, Adjust
- Product & Project Management: Jira, Trello
- Productivity & Collaboration: Ms Office (Excel, Powerpoint), Google Workspace, Notion, Confluence, Miro, Figma
- Soft Skills: Stakeholder Communication, Cross-Functional Coordination, Problem Solving, Adaptability
Languages
Education
Marmara University
Bachelor's Degree · Industrial Engineering · İstanbul, Turkey · 82.3 / 100
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Berkay is based in Hildesheim, Germany.
Berkay speaks the following languages: Turkish (Native), English (Advanced), German (Elementary).
Berkay has at least 6 years of experience. During this time, Berkay has worked in at least 6 different roles and for 5 different companies. The average length of individual experience is 1 year and 11 months. Note that Berkay may not have shared all experience and actually has more experience.
Based on recent experience, Berkay would be well-suited for roles such as: Product Manager, Associate Publishing Manager, Junior Data Analyst.
Berkay's most recent position is Product Manager at Wixot.
In recent years, Berkay has worked for Wixot, Netmarble Turkey/Joygame, and ÇiçekSepeti/Mizu.
Berkay is most experienced in industries like Media and Entertainment, Information Technology, and Retail.
Berkay is most experienced in business areas like Business Intelligence, Product Development, and Marketing. Berkay also has some experience in Strategy.
Berkay has recently worked in industries like Information Technology, Media and Entertainment, and Retail.
Berkay has recently worked in business areas like Business Intelligence, Product Development, and Strategy.
Berkay holds a Bachelor in Industrial Engineering from Marmara University.
The availability of Berkay needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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