Stanislav Savosiuk

Summary

Solution Architect and Lead Software Engineer specializing in high-scale distributed systems, cloud-native platforms, and low-latency backend architecture. Designed and implemented systems processing 1M+ QPS and petabyte-scale data with strong focus on scalability, fault tolerance, and production delivery. Core stack: Java, Kubernetes, event-driven systems, distributed data processing, CI/CD. Experience across adtech and social casino domains, including presales, technical architecture, and end-to-end platform delivery.

Work Experience

Xenoss | Lead Software Engineer and Solution Architect | Remote | 2021 – Present

• Architected and built an offerwall monetization platform from scratch — microservices, fraud prevention, payments, 1M+ DAU
• Designed and implemented ML-based bid price prediction for DSP using LightGBM with sub-millisecond inference under high-load constraints
• Led migration of Retail Media Solutions monolith to microservices architecture, improving service isolation and enabling independent deployment of core components
• Designed geospatial population density algorithm for polygon-based campaign targeting
• Led engineering teams of 5–7 across multiple concurrent projects
• Drove and won multiple presales engagements by translating business requirements into technical architecture proposals

EPAM | Solution Architect | Remote | 2020

• Designed and delivered event-driven systems using Tibco BE and Tibco BW for high-volume healthcare workloads
• Led PoC architecture initiatives for enterprise healthcare customers, defining target architecture and validating feasibility for production-scale delivery
• Supervised 4 cross-functional engineering teams (7 engineers each)

Playtika | Senior Software Engineer and Scrum Master | Dnipro, Ukraine | 2018 – 2020

• Owned and developed core game feature for in-game item collection across the full game, serving 1M+ DAU at 500 QPS
• Designed and maintained highly scalable, fault-tolerant backend systems for social casino products
• Served as Scrum Master for a team of 6 engineers

Luxoft | Software Developer/Senior Software Engineer | Dnipro, Ukraine | 2009 – 2018

• Developed backend systems for enterprise energy platforms using Java and distributed system design principles
• Certified Predix Developer (GE)

Skills

• Programming Languages: Java, JavaScript, SQL
• Frameworks: Spring Boot, Node.js, Express, React
• Cloud & Containers: AWS, Kubernetes, Docker, Terraform
• Data & Streaming: Kafka, Redis, PostgreSQL, MongoDB, DynamoDB
• Architecture: Microservices, Event-driven Architecture, Distributed Systems, High Availability, Scalability, Low Latency, Fault Tolerance, System Design
• DevOps & CI/CD: GitHub Actions, Argo CD, Helm, Prometheus, Grafana

Education

Master of Science in Computer Science, Ukrainian State University of Science and Technologies (formerly Dnipro National University of Railway Transport)

Certifications

• AWS Solutions Architect – Professional
• AWS Certified Developer
• Certified Scrum Master

Languages

• English – Full professional proficiency
• Ukrainian – Native
• Russian – Native