Bohdan Katrenko
Senior Software Engineer @Schwarz Digits
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WORK HISTORY
Senior Software Engineer @Schwarz Digits
Berlin, DE
Working on a high-load AdTech project, designing scalable and reliable solutions using GCP, Kubernetes, and Go. As a member of the company’s architecture board, I have contributed to the design and development of core components across the project and infrastructure.Beyond development, I introduced advanced monitoring and distributed tracing, CI-based linting, security monitoring, end-to-end testing, an On-Call process, and a stress testing framework to enhance system reliability and team efficiency.Tech stack- Go (Golang)- Google Cloud Platform (GCP)- Kubernetes (k8s)- PostgreSQL / BigQuery- GitHub Actions & ArgoCD- Pub/Sub- Temporal
EDUCATION
Ukrainian National Technical University
Master's degree, System Programming
ABOUT BOHDAN KATRENKO
I’m a Senior Software Engineer at Schwarz Dienstleistungen with over 8 years of experience in building and scaling high-performance backend systems. My focus lies in designing distributed, microservices-based architectures using Golang, with a strong foundation in gRPC | REST APIs, PostgreSQL, Elasticsearch, and message brokers (Kafka, GCP pubsub) for reliable data processing and inter-service communication.At Schwarz Dienstleistungen, I engineer and optimize high-load systems that handle millions of requests daily across a multi-cluster Kubernetes (K8s) environment. I specialize in horizontal scaling, service orchestration, and resilience engineering, ensuring systems remain fault-tolerant, observable, and cost-efficient under heavy traffic.I’m passionate about architecting for scale — from implementing auto-scaling strategies and load balancing to designing graceful degradation and recovery patterns. My approach emphasizes performance profiling, resource optimization, and infrastructure automation using tools like Docker, Kubernetes, and Helm across AWS and GCP cloud platforms.Driven by curiosity and continuous learning, I enjoy tackling complex scalability challenges, refining deployment pipelines, and collaborating with cross-functional teams to deliver systems that grow seamlessly with business needs.
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