Berkay İşlek - Bachelor of Industrial Engineering

Q: Where is Berkay based?

Berkay is based in Hildesheim, Germany .

Q: What languages does Berkay speak?

Berkay speaks the following languages: Turkish (Native), English (Advanced), German (Elementary) .

Q: How many years of experience does Berkay have?

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.

Q: What is Berkay's latest experience?

Berkay's most recent position is Product Manager at Wixot .

Q: What companies has Berkay worked for in recent years?

In recent years, Berkay has worked for Wixot , Netmarble Turkey/Joygame , ÇiçekSepeti/Mizu , KocDigital , and Esporin .

Q: Which industries is Berkay most experienced in?

Berkay is most experienced in industries like Media, Entertainment and Publishing , Information Technology (IT) , and Retail .

Q: Which business areas is Berkay most experienced in?

Berkay is most experienced in business areas like Business Intelligence , Product Development , and Marketing . Berkay also has some experience in Strategy and Planning .

Q: Which industries has Berkay worked in recently?

Berkay has recently worked in industries like Media, Entertainment and Publishing , Information Technology (IT) , and Retail .

Q: Which business areas has Berkay worked in recently?

Berkay has recently worked in business areas like Business Intelligence , Product Development , and Marketing .

Recommended expert

Hildesheim, Germany

Experience

Jun 2023 - Dec 2025

2 years 7 months

İstanbul, Turkey

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.

Nov 2022 - Jun 2023

8 months

İstanbul, Turkey

Hybrid

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.

Jul 2022 - Nov 2022

5 months

İstanbul, Turkey

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.

Aug 2021 - Jun 2022

11 months

İstanbul, Turkey

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.

Feb 2021 - Jul 2021

6 months

İstanbul, Turkey

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.

May 2020 - Feb 2021

10 months

İstanbul, Turkey

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.

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (3.5 years), Media and Entertainment (3.5 years), and Retail (1 year).

Information Technology

Media and Entertainment

Retail

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Business Intelligence (4.5 years), Product Development (3.5 years), Marketing (1.5 years), and Strategy (1 year).

Business Intelligence

Product Development

Marketing

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

Turkish

Native

English

Advanced

German

Elementary

Education

Aug 2015 - Jul 2020

Marmara University

Bachelor's Degree · Industrial Engineering · İstanbul, Turkey · 82.3 / 100

Profile

Created

February 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Berkay based?

Berkay is based in Hildesheim, Germany.

What languages does Berkay speak?

Berkay speaks the following languages: Turkish (Native), English (Advanced), German (Elementary).

How many years of experience does Berkay have?

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.

What roles would Berkay be best suited for?

Based on recent experience, Berkay would be well-suited for roles such as: Product Manager, Associate Publishing Manager, Junior Data Analyst.

What is Berkay's latest experience?

Berkay's most recent position is Product Manager at Wixot.

What companies has Berkay worked for in recent years?

In recent years, Berkay has worked for Wixot, Netmarble Turkey/Joygame, ÇiçekSepeti/Mizu, KocDigital, and Esporin.

Which industries is Berkay most experienced in?

Berkay is most experienced in industries like Media, Entertainment and Publishing, Information Technology (IT), and Retail.

Which business areas is Berkay most experienced in?

Berkay is most experienced in business areas like Business Intelligence, Product Development, and Marketing. Berkay also has some experience in Strategy and Planning.

Which industries has Berkay worked in recently?

Berkay has recently worked in industries like Media, Entertainment and Publishing, Information Technology (IT), and Retail.

Which business areas has Berkay worked in recently?

Berkay has recently worked in business areas like Business Intelligence, Product Development, and Marketing.

What is Berkay's education?

Berkay holds a Bachelor in Industrial Engineering from Marmara University.

What is the availability of Berkay?

Berkay will be available full-time from February 2026.

What is the rate of Berkay?

Berkay's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.