Petr Shatunov

Established a comprehensive team-level testing strategy and introduced production alerting based on automated E2E smoke tests, ensuring business continuity and drastically reducing Mean Time to Detection (MTTD).

Executed large-scale production load testing, successfully validating system stability under a sustained 50,000 RPS load for designated time intervals.

Orchestrated traffic switchover for high-load services (1000+ RPS) during critical updates and migrations, achieving near-zero downtime and a seamless user experience.

Successfully migrated 30 TB of legacy on-premises data to AWS S3, ensuring strict data integrity, zero data loss, and minimal impact on active business operations.

Led the application cloud migration strategy, moving 15+ core services from on-premises infrastructure to AWS, significantly improving scalability.

Scaled a pilot monolith-to-microservices transition into production reality, architecting and implementing missing critical business features across 12 microservices with clearly defined bounded contexts.

Designed and implemented system resilience architecture, introducing distributed tracing, retry policies, and caching patterns (Zipkin, Redis, Spring) to maximize platform stability.

Authored key Architectural Decision Records (ADRs) on high-impact initiatives, including system fallback mechanisms and large-scale database partitioning.

Technical Author & Contributor | Baeldung (Remote)

DistriBeautie: Building a Distributed Master-Replica Sync from Scratch

Curriculum Design & Course Creation: Designed and developed a comprehensive "Computer Networking & Systems" course from scratch, creating theoretical lectures, laboratory materials, and practical exams.

Hands-on Technical Training: Successfully delivered lectures and practical workshops over 3 semesters, mentoring working professionals and adult learners transitioning into computer networking and IT.

Simulation & Hardware Labs: Guided students in designing, configuring, and troubleshooting complex network topologies using Cisco Packet Tracer and enterprise routing/switching hardware.

Student Assessment & Examination: Orchestrated and conducted final examinations, technical demos, and grading processes, evaluating students' architectural designs and practical network troubleshooting skills.

Team Leadership & Operations: Led and managed a lean IT team of 2 engineers at Volgotrans; successfully aligned day-to-day operations, task allocation, and infrastructure support with business priorities.

Technical Recruitment & Talent Assessment: Actively contributed to company growth at Ratepay by conducting 25+ technical interviews for engineering roles, defining hiring criteria, and identifying top-tier tech talent.

Onboarding & Mentorship: Mentored and onboarded junior and mid-level software engineers, accelerating their integration into the team and reducing time-to-production for core features.

Knowledge Sharing & Engineering Culture: Spearheaded knowledge-sharing initiatives and technical tech-talk sessions within the engineering team to foster a continuous learning culture.