Sarper Kumcu Email & Phone Number

Istanbul, Turkey

Developed micro-services using Java 17/Kotlin, integrated with Spring Boot, Gradle, and OpenAPI.Led the automation of testing for service APIs, and executed thorough database unit testing.Designed efficient and scalable relational databases tailored to the company's needs.Successfully crafted an end-to-end authorization module by integrating AWS Cognito with Spring Security.Designed and implemented a comprehensive payment structure with Stripe, accommodating multiple products and packages, and incorporated a custom listener for payment events.Managed the transition and migration of code from a Python-Django monolithic system to the microservices.

Engaged in comprehensive customer needs analysis to gain a profound understanding of their requirements and pain points. Leveraged this valuable insight to present the most fitting and tailored solution, effectively addressing their specific needs and ensuring utmost satisfaction.

Contributed to a project aimed at automating the response process to prosecutor requests using OCR technologies. This endeavor streamlined and expedited the handling of legal documentation, resulting in increased efficiency and accuracy.Provided valuable consultancy services to multiple companies regarding their Cloudera stack. Leveraging in-depth expertise in Cloudera technologies, I offered strategic insights and practical solutions to optimize their big data infrastructure, enabling them to harness the full potential of their data and drive data-driven decision-making.

I have successfully developed diverse projects encompassing user segmentation, car price prediction, spam filter, recommendation engine, and a social distance violation detector. These projects demonstrate my proficiency in various domains, from machine learning and data analysis to real-time applications and safety-oriented solutions.Proposed architectures for future big data and machine learning projects, encompassing distributed data collection with real-time ingestion and stream processing using Apache Spark for near real-time data analysis, along with scalable data warehousing solutions for historical data storage.

Istanbul, Turkey

As of July 2019, I held the position of a software developer intern, where I actively contributed my skills and knowledge to various projects and tasks within the organization. During my internship, I gained valuable hands-on experience in software development and honed my abilities in programming and problem-solving.