About Me
Distributed Systems & Backend Engineer (Rust/Go) with 5+ years of experience building fault-tolerant, high-performance systems. Skilled in database optimization, event-driven architectures, and cloud-native platforms (Kubernetes, AWS). Known for delivering measurable impact (e.g., cutting page loads from 60 → 1s, reducing infra costs) and for taking full ownership from design to production in remote-first teams.
Key Achievements
- ⚡ Reduced critical page load times from 60–70s to ~1s by eliminating N+1 query patterns and optimizing PostgreSQL access logic.
- 🗄️ Lowered database CPU load from 100% to 10–15% during peak hours through schema redesign and advanced indexing strategies.
- 🔍 Built a universal filtering and query pipeline for Elasticsearch, cutting duplicate code by 90% and boosting search performance across services.
- 🐳 Optimized Docker containers, reducing image sizes by up to 100x for faster, more efficient deployments.
- 🏗️ Designed and deployed scalable microservices in Golang and Rust, supporting 10K+ daily transactions and real-time reporting.
Core Skills
Projects
Go Blog Platform
Developed a scalable backend using Golang, gRPC, Gin, and MongoDB, adhering to Hexagonal Architecture principles.
Implemented REST APIs supporting seamless CRUD operations for blog content, resulting in efficient user management and content delivery.
Key Impact: Enabled efficient content management for developers or blogging platforms.
Multi K8S
Designed a Kubernetes-based system to calculate Fibonacci sequences, leveraging Docker, Kubernetes, Travis, and Google Cloud.
Implemented CI/CD pipelines for automated build and deployment processes, achieving high availability and seamless scaling.
Key Impact: Demonstrated cloud-native application deployment, ensuring high availability and rapid scalability in containerized environments.
Certifications
Contact
📧 Email: yachnytskyi1992@gmail.com
🌍 LinkedIn: constantine-yachnytsky
🔗 GitHub: yachnytskyi
📄 Resume: download