
Yaroslav Denisenko
@yaroslavdenisenko
I build high-performance full-stack web products for data-intensive analytics, banking, enterprise, and EdTech platforms.
What I'm looking for
At Podscribe, I build and scale a B2B AdTech analytics platform processing 20B+ ad impressions across 67K+ campaigns. I reduced dashboard load time from 4.8s to 1.4s with virtualized 50K+ row tables and optimized real-time chart rendering for 50M+ daily data points.
I own features from architecture and API collaboration through testing and production delivery, using TypeScript, React, Next.js, Node.js, NestJS, PostgreSQL, REST APIs, and WebSockets. I focus on pragmatic architecture, measurable performance, accessible design systems, and software that stays maintainable as teams grow.
At R7, I built renderer-critical capabilities for an enterprise document and presentation editor used by 1M+ people, including a PowerPoint Morph-compatible slide engine. I also reduced rendering time for large presentations by about 34%, cut deployments from three hours to 25 minutes, and owned the macOS native layer.
Earlier, I delivered payment-reconciliation workflows processing 10M+ daily transactions at iFellow and web products for UCHi.RU's EdTech platform. I'm looking for senior software or full-stack engineering work on complex, performance-sensitive web products, particularly where I can use Rust alongside TypeScript.
Experience
Work history, roles, and key accomplishments
I build and optimize data-intensive B2B analytics products, focusing on frontend architecture, real-time data, performance, and maintainability.
Podscribe is a US-based, IAB-certified podcast and audio advertising measurement platform processing 20B+ ad impressions across 67K+ campaigns and 270+ advertisers.
Key achievements:
- Built virtualized analytics tables for 50K+ rows with react-window
Worked on an enterprise document and presentation editor used by 1M+ end users, focusing on rendering performance, complex Canvas-based interactions, native macOS integration, and delivery automation.
R7 Office is an office productivity software vendor serving 500+ enterprise clients.
Key achievements:
- Designed and implemented a slide morphing engine with object mapping, transform interpolati
As a Senior Full-Stack Engineer at iFellow, I delivered an internal payments reconciliation platform processing 10M+ daily instant-payment transactions for a major banking group, owning web features end-to-end across React, TypeScript, Java, and Spring.
iFellow is an enterprise software development company with 1,600+ engineers.
Key achievements:
- Developed reconciliation workflows as the sole
As a Full-Stack Engineer, I built customer-facing and internal web products for a K–12 EdTech platform, working across React, JavaScript, Ruby on Rails, product analytics, and operational tooling.
UCHi.doma is an EdTech group offering online lessons and self-study products to 8M+ users.
Key achievements:
- Built account portals and internal admin tools for an online tutoring platform serving 20
Education
Degrees, certifications, and relevant coursework
Moscow Institute of Physics and Technology (State University) (MIPT)
Bachelor of Science, Applied Maths and Physics
2013 - 2017
Availability
Location
Authorized to work in
Salary expectations
Social media
Job categories
Skills
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