Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I'm a Java Backend Engineer with 3+ years of experience building scalable microservices and distributed systems, currently at Huawei Istanbul on high-traffic production systems. I have a strong background in Java, Spring Boot, REST APIs, and SQL databases, with a track record in performance optimization, caching strategies, and collaborating with global teams across multiple time zones.…

Furkan Öcalan

Back-End Developer, Web Developer, Full Stack Developer, +2





I'm a Java Backend Engineer with 3+ years of experience building scalable microservices and distributed systems, currently at Huawei Istanbul on high-traffic production systems. I have a strong background in Java, Spring Boot, REST APIs, and SQL databases, with a track record in performance optimization, caching strategies, and collaborating with global teams across multiple time zones.…

Available to hire

I’m a Java Backend Engineer with 3+ years of experience building scalable microservices and distributed systems, currently at Huawei Istanbul on high-traffic production systems.

I have a strong background in Java, Spring Boot, REST APIs, and SQL databases, with a track record in performance optimization, caching strategies, and collaborating with global teams across multiple time zones.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Turkish

Fluent

English

Advanced

Work Experience

Software Engineer at HUAWEI – Global Technology Company

June 1, 2023 - Present

Developed and maintained backend microservices using Java (Spring Boot, Hibernate) for Huawei AppGallery serving high-traffic production systems. Designed RESTful APIs integrated with Redis and SQL databases, improving response times by up to 20%. Worked on distributed systems and data pipelines supporting recommendation and analytics workloads. Collaborated with international teams across multiple time zones in an agile development environment.

Data Management Assistant Specialist at SADE SOFTWARE AND CONSULTANCY

September 1, 2022 - June 1, 2023

Automated ETL processes and optimized complex SQL queries in PostgreSQL, MySQL, improving data pipeline efficiency. Developed and implemented database optimization strategies, detecting and correcting erroneous data fields. Contributed to backend service development using Python and Angular, enhancing application functionality and performance.

Machine Learning Engineer Intern at HAVELSAN

August 1, 2021 - September 1, 2021

Conducted in-depth data analysis to refine model training accuracy using Python. Developed machine learning (XGBoost, K-Means, LightGBM) and deep learning models for tabular data, optimizing analytics. Deployed and containerized machine learning models using Docker, improving scalability and deployment efficiency.