Sergii Semenov
Principal Software Developer at GRVITY GmbH
Montreal, Quebec, Canada
Summary
👤
Senior🎓
Top SchoolSergii Semenov is a Principal Software Developer with over a decade of experience designing high-performance, distributed systems and microservices, currently driving architecture and delivery at Morgan Stanley from Montreal. He combines deep Java expertise (multithreading, Stream API, Spring Boot) with hands-on work across C#, C++, PHP and front-end tech, routinely optimizing APIs to single-digit-millisecond responses and handling thousands of IoT requests per second. Sergii has a strong track record in IoT, event-driven architectures and ecommerce integrations—his systems have boosted revenues via Shopify and marketplace synchronizations while cutting operational costs through automation. He also brings practical algorithmic smarts (e.g., using the Simplex method for order distribution) and a history of leading small engineering teams to deliver resilient, observable platforms. Notably, his background spans embedded/robotics education to large-scale cloud services, giving him unusual breadth from device-level concerns to scalable backend design.
10 years of coding experience
16 years of employment as a software developer
Specialist (equivalent to bachelor's degree), System Engineer – Integrated computerized systems and Robotics., Specialist (equivalent to bachelor's degree), System Engineer – Integrated computerized systems and Robotics. at State Eastern Ukrainian University
Github Skills (16)
api9
accessibility9
integrations8
documentation7
cypress7
visual-testing6
image-comparison6
testing5
cypress-plugin5
backend5
docker4
sdk4
frontend3
java3
snapshots3
Programming languages (6)
Github contributions (5)
dp120291ssv/AQA_SeleniumUdemyCourseProject
Feb 2020 - Jun 2020
Contributions:92 commits, 2 PRs, 66 pushes in 4 months
dp120291ssv/PageObject_poliarush
Sep 2016 - Mar 2024
Contributions:6 pushes, 1 branch in 7 years 6 months
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