Guray Demirezen
@guraydemirezen
Results-driven Oracle APEX Developer with a passion for innovation.
What I'm looking for
I am an Oracle APEX Developer with over 2 years of experience at Hatch, where I have successfully delivered high-performance enterprise applications that enhance business operations. My expertise in SQL/PL/SQL has led to a remarkable 40% optimization in application performance. I combine my technical skills in Oracle APEX, Oracle AOP, and Microsoft SSRS with a background in Mechatronics Engineering to create scalable solutions that drive measurable business outcomes.
Throughout my career, I have spearheaded critical enhancements to enterprise applications, significantly reducing system downtime and procurement cycles. My innovative approach to problem-solving has resulted in substantial cost savings and improved user experiences. I am passionate about leveraging emerging technologies and continuously expanding my technical capabilities, particularly in Machine Learning and Data Science, to stay ahead in the fast-evolving tech landscape.
Experience
Work history, roles, and key accomplishments
Oracle APEX Developer
Hatch
Jan 2023 - Present (2 years 4 months)
Results-driven Oracle APEX Developer with over 2 years of experience at Hatch, specializing in delivering high-performance enterprise applications. Successfully optimized application performance and reduced system downtime while implementing innovative solutions that streamline business operations.
Research Assistant
Mitsubishi Heavy Industries and CRJ (MHIRJ)
May 2022 - Aug 2022 (3 months)
As a Research Assistant, developed an end-to-end testing framework and automated performance monitoring system, significantly enhancing reliability and reducing error rates. Created an ETL pipeline for processing large datasets, generating predictive maintenance insights.
Education
Degrees, certifications, and relevant coursework
University of Toronto, School of Continuing Studies
Certificate, Machine Learning
2024 - 2024
Developed predictive models using advanced algorithms and artificial intelligence techniques. Mastered data preprocessing, feature engineering, model training, and performance evaluation methodologies. Applied supervised and unsupervised learning methods, including linear regression, classification, clustering, and neural networks.
Humber College
Graduate Certificate, Information Technology
2021 - 2022
Activities and societies: Collaborated on a full-stack web application addressing real-world challenges. Demonstrated skills in project management, teamwork, and effective communication.
Focused on practical and theoretical aspects of IT, covering front-end and back-end development, mobile application development, database management, machine learning, and software engineering principles.
Marmara University
Bachelor of Science, Mechatronics Engineering
2012 - 2016
Activities and societies: Designed and programmed PLC-based automation systems for industrial applications, enhancing operational efficiency.
Focused on PLC programming, pneumatics, hydraulics, and solid modeling. Built a solid foundation in mechanical and electrical engineering principles, integrating cross-disciplinary knowledge essential for mechatronics.
Availability
Location
Authorized to work in
Job categories
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