Oleksandr Nikolaichuk
Senior Software Engineer at Deutsche Bank
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolOleksandr Nikolaichuk is a Senior Software Engineer based in Berlin with 6 years of hands-on experience building scalable, cloud-native Java systems for high-stakes financial environments. He has driven mission-critical payments platforms and banking applications that emphasize low-latency, fault-tolerance, and end-to-end security, pairing PostgreSQL, MongoDB and RabbitMQ with AWS, Docker, Terraform and CI/CD automation. Known for performance tuning and data-path optimization, he brings practical expertise in migrating infrastructure to the cloud while reducing costs and improving observability. Comfortable in Agile teams, he also leverages lower-level familiarity with C and Rust to solve tricky systems problems and broaden architectural options. Prior roles span enterprise banking and e-commerce, reflecting a pragmatic mix of operations, development and leadership that helps ship auditable, production-ready systems.
6 years of coding experience
11 years of employment as a software developer
Bachelor's degree, Automation technology and robotics, Bachelor's degree, Automation technology and robotics at Khmelnytsky Polytechnic Professional College of Lviv Polytechnic National University41 level, java core, 41 level, java core at JavaRushJava Middle, java, Java Middle, java at Job4j - online computer coursesComputer Science Basics Alumnus, Stanford CSA106 + CSB106, 4.74/5, Computer Science Basics Alumnus, Stanford CSA106 + CSB106, 4.74/5 at computer school SH++Master's degree, Economic Cybernetics, Master's degree, Economic Cybernetics at Хмельницький національний університет (Khmelnitsky National University)
Українська, Англійська, Russian
Github Skills (20)
spring-data-jpa7
spring-boot6
forum6
java6
python5
multithreading5
django5
spring-security4
mongodb4
tom3
nodejs3
servlet2
typescript2
ajax2
spring1
Programming languages (4)
Github contributions (5)
Sekator778/job4j_forum
Jul 2020 - Sep 2020
Online forum app with registration.
Contributions:90 commits, 80 pushes, 2 branches in 2 months
spring-bootdjangoforumregistrationspring-data-jpa
Sekator778/JavaRushTasks
Feb 2020 - Dec 2020
Contributions:85 commits, 67 pushes, 2 branches in 10 months
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