Yalçın Yenigün

Director of Engineering

Berlin, Berlin, Germany16 yrs 9 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Led global FinTech vertical at Delivery Hero.
Built scalable payment platforms for 65 countries.
Expert in transforming complex requirements into micro-services.

Stackforce AI infers this person is a Fintech expert with a strong focus on scalable payment solutions.

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Skills

Core Skills

Engineering LeadershipTechnology LeadershipSoftware Development

Other Skills

Engineering ManagementCloud Cost ManagementJavaSpring BootTeam ManagementScalaSparkPythonJ2EERuby on RailsAndroidMySQLEclipseWeb ServicesJSF

About

Strategic Engineering Leader with 15+ years of experience, specializing in the architecture and scaling of high-growth FinTech platforms. Currently leading the Global FinTech Vertical at Delivery Hero, overseeing the processing of millions of daily payment transactions across 65 countries. I excel at transforming complex business requirements into scalable, high-available micro-services while fostering a culture of autonomy and continuous improvement. A dedicated mentor and organizational architect focused on building resilient, high-performance teams that deliver at the speed of global commerce. Specialties: Technical & Organizational Scalability, High Availability, Domain Driven Design, Micro-services, Failover Management, Incident Management, Leading Teams, Hiring, Mentorship and Training

Experience

16 yrs 9 mos

Total Experience

2 yrs 11 mos

Average Tenure

5 yrs 4 mos

Current Experience

Delivery hero

3 roles

Senior Director of Engineering

Promoted

Mar 2025 – Present · 1 yr 3 mos · Berlin, Germany

Leading the Tech team of global Fintech vertical of Delivery Hero, building payments and financial services products for 65 countries.

Director Of Engineering

Promoted

Mar 2022 – Mar 2025 · 3 yrs · Berlin, Germany

Leading global Fintech vertical in Delivery Hero with 100+ engineering team size
Providing reliable, scalable and secure payment platform to 40+ Delivery Hero countries across the globe processing millions of daily payments
Rolled out the Fintech platform to 15+ incremental countries
Splitted a Fintech monolith into multiple services (Wallet and Payments) and rolled out to 30+ countries
Accountable and responsible from Fintech budget planning, cloud cost per order, incident loss budget, tech strategy and execution

Engineering LeadershipTechnology LeadershipEngineering Management

Senior Engineering Manager

Feb 2021 – Mar 2022 · 1 yr 1 mo · Berlin, Germany

Technology Leadership

Iyzico

2 roles

Head of Software Engineering

Promoted

Apr 2018 – Jan 2021 · 2 yrs 9 mos · Istanbul, Turkey

Head of Engineering in a fast growing Fintech startup and built a Payment Platform from scratch
Manager of 40+ software engineers including 6 different teams with 3 engineering managers and directly reports to CTO

Technology Leadership

Expert Software Engineer (Tech Lead)

Mar 2015 – Apr 2018 · 3 yrs 1 mo · Istanbul, Turkey

Development of large-scale payment platform from scratch in a fast-growing fintech start-up (3rd software engineer of the company) which is acquired by PayU for 165M USD
Development of real time fraud detection system by building an ensemble of ML&AI models that balances overall revenue and true positive rejections.
Used technologies: Java 8, Scala, Spark, Python, Spring Boot, Groovy, Redis

Bilge adam

2 roles

Unit Manager, Software Development

Feb 2014 – Mar 2015 · 1 yr 1 mo · Istanbul, Turkey

Unit Manager of the Open Source division
Built up the software development life cycle of Java & Open Source technologies department

Technology Leadership

Software Development Team Leader

Nov 2012 – Feb 2014 · 1 yr 3 mos · Istanbul, Turkey

Implemented various areas of web and mobile projects of Syncsort DMExpress, an ETL tool for big data integration
Management of SCRUM process and accountable of removing impediments of the team
Trainer of “Java Programming”, “Effective Java Programming”, “Java Enterprise Edition”, “Java Web Services”, "Professional SCRUM Developer" and “Android Programming” courses
Project link : https://www.syncsort.com/en/Products/BigData/DMX
Used Technologies : Java, C, JNI, JAX-RS, Jersey, JUnit, Tomcat, Maven, IONIC, AngularJS, Appium, Jasmine

Technology Leadership

Digiturk

Consultant

Nov 2012 – Sep 2013 · 10 mos · Istanbul, Türkiye

Implemented backend services of Digiturk online self care project for the largest digital media company of Turkey with more than 3 million subscribers
Project link : https://onlineislemler.digiturk.com.tr/
Used Technologies : Java, Spring, JAX-WS, PL/SQL, Oracle Weblogic, Maven

Vodafone

Software Developer

Jul 2010 – Nov 2012 · 2 yrs 4 mos · Istanbul, Türkiye

Participated development of Service Delivery Framework (a concept of SDP) which enables mobile operators and 3rd party service/content providers to create and deploy their own multimedia services through multiple channels.
Analyse, Design and Development of Vodafone Partner Portal project.
Used Technologies: Java, OSGI, Equinox, Oracle, LDAP, SOA, JAX-WS, JAX-RS, Jersey
Web: Google Web Toolkit, Oracle Weblogic Server, Oracle Weblogic Portal, JPA, Spring, Hibernate, Seam Framework, JSF, RichFaces
Continous Integration and tools: Eclipse, SVN, CVS, Netbeans, Maven, Ant, Bamboo, Archiva, Sonar, Crucible, FishEye, Jira, Atlassian Confluence.
Agile Methodology: Scrum (Scrum Master)
Concepts: OOA / OOD (UML, Design Patterns, Refactoring), Unit and Integration Testing.

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Software Developer

Jul 2009 – Jun 2010 · 11 mos

Java, JEE development. (Spring, Hibernate) (large scale telco project)
Mobile application development for IPhone and Android (CMONE - Mobile News Reader - http://www.slideshare.net/zerobuffer/cmone-mobile-news-reader )
Web development with Ruby on Rails.