Kostyantyn Pshenychnyy
Chief Technology Officer at Call2action.ai
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolKostyantyn Pshenychnyy is a Founding Engineer and software architect with 7 years of experience building scalable backend systems and AI-driven products from San Francisco. He has led engineering teams and designed microservice architectures at startups and scale-ups, shipping production services across fintech, healthcare, and SaaS domains. At Vitaliti he built a custom RAG system and knowledge graph to power a contextual health assistant, demonstrating a practical blend of ML, systems design, and cost-conscious cloud engineering. His hands-on stack experience spans TypeScript/Node.js, distributed data systems, Kafka/RabbitMQ, Postgres, Redis, and Kubernetes, with repeated responsibility for hiring, release planning, and architecture. Now at a stealth AI startup, he’s applying that product-to-production discipline to novel AI products—comfortable moving between deep technical design and operational leadership. Colleagues would note his pattern of turning complex domain requirements into maintainable microservices and pragmatic ML-enabled features.
8 years of coding experience
12 years of employment as a software developer
Master of Computer Science Информатика, Master of Computer Science Информатика at Sumy State University
Русский, English, Українська
Github Skills (23)
threejs10
simulation10
javascript10
sentence-transformers10
qdrant10
docker-compose10
api-documentation10
documentation-generator10
huggingface10
aws10
cloud-architecture10
devops10
swagger9
docker9
open-source9
Programming languages (4)
Github contributions (5)
pshenok/pshenok
Dec 2020 - Apr 2026
Contributions:11 pushes, 1 branch in 5 years 4 months
pshenok/book-service
Mar 2020 - Aug 2022
Contributions:14 reviews, 26 PRs, 21 pushes in 2 years 5 months
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