DMDenys Maksymenko
@denysmaksymenko
Fullstack engineer building scalable, user-centric web and AI-powered products.
PolandWhat I'm looking for
I am a dedicated fullstack engineer focused on building high-quality, user-centric web applications and AI-powered, data-intensive products across healthcare, fintech, real-time systems, and AI platforms.
I design and implement scalable, maintainable UI architectures and performant interfaces using modern JavaScript frameworks and TypeScript, and I contribute across the stack including backend services, databases, and CI/CD improvements.
I have led projects delivering responsive front-ends, real-time dashboards, NFT marketplace backends, and AI speech-processing features while mentoring engineers, improving developer workflows, and optimizing for low-latency, high-traffic environments.
Experience
Work history, roles, and key accomplishments
Frontend Developer
SoftServe
Jan 2021 - Present (5 years 1 month)
Designed and implemented responsive, accessible front-end interfaces for a healthcare data management system and an interactive crypto exchange, optimizing UI performance and real-time updates across desktop and mobile.
Fullstack Developer
Graitech
Jan 2024 - Jan 2025 (1 year)
Developed backend services and type-safe database schemas for an NFT marketplace, implementing minting, listings, trading, and wallet integrations while optimizing API performance for high-traffic Telegram apps.
Fullstack Developer
waven.ai
Jan 2023 - Jan 2025 (2 years)
Built full-stack AI speech platform features and backend APIs for speech-to-text, text-to-speech, and model orchestration, optimizing for low-latency real-time audio processing and streaming.
Frontend Developer
Brainrocket
Jan 2022 - Jan 2025 (3 years)
Directed end-to-end development for a multi-brand gaming platform, supervised code reviews, improved CI/CD pipelines, and mentored new engineers to reduce ramp-up time.
Built real-time dashboards to monitor and control 500+ IoT devices, developing high-performance components and interactive visualizations to handle rapid updates and large datasets without UI lag.
Education
Degrees, certifications, and relevant coursework
SUSumy State University
Master degree, Information Technology
2023 - 2024
Completed a Master degree program at Sumy State University with focus on advanced topics in information technology.
VUV. N. Karazin Kharkiv National University
Bachelor of Science, Information Technology
2020 - 2023
Earned a Bachelor of Science in Information Technology with coursework and projects in software development and systems.
Machine Building College, Sumy State University
Undergraduate, Undeclared
2016 - 2020
Completed undergraduate studies at the Machine Building College affiliated with Sumy State University.
Availability
Location
PolandAuthorized to work in
Social media
Job categories
Skills
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