Efim Chashin Email & Phone Number

Moscow, Moscow City, Russia

- Developed and served as the main maintainer of a high-level abstraction framework (IaC) for idempotent and consistent software deployment to the cloud or bare metal with Kubernetes or Docker infrastructure. - Reduced Maintenance costs by 34% QoQ for Kubernetes clusters. As a result of the granularity of the deployment env (DTAP) - Achieved zero downtime deployment for both blue-green release and canary release strategies. - Reduced the time required for the deployment of the entire infrastructure and initiating the application from multiple days to a few hours. - Achieved seamless deployment for data and software development teams of 150 people without DevOps or MLOps roles, leading to increased operational efficiency and accelerated project delivery.- Developed a Process Control Service (PCS) to prevent DoS in any type of internal error (Memory Leak, CPU load, I/O) on over 400 servers.

Boca Raton, Florida, United States

- Restructured API architecture to optimize server query response time, resulting in a 15% improvement. - Divided the Django booking monolith into asynchronous services to enhance scalability and performance.Makes informed and well-thought-out, long-term technical decisions. Find and optimize slow database queries (no raw SQL queries just the Django ORM).

Florida, United States

- Designed and implemented E2E tests to prevent regress during the concurrent development of the Dining Management application for Virgin, Disney, and Norwegian Cruise Line.- Reduce daily booking errors by 50% and present accessibility at an all-hands.

Tobolsk, Tyumen’, Russia

Was involved in analytics and risk control at the construction of the ZapSibNeftekhim plant (wiki) - the largest petrochemical project in Eastern Europe (total cost $ 9.5 billion).Main goals: - Project Management - Development of 3-4 level schedules for each of the EPC stages of the project - Analytics in terms of milestones of the project, the formation of reporting materialsAchievements: - During the internship, I designed a 4-level schedule and provided analytics for a mono-project Switching Point 500 kW Tobol (total cost ₽ 5.3 billion) - As part of the main installation Polyethylene (capacity 1.5 million tons per year), i'm developed a schedule of 4 levels (10 000 m/hrs), monitored progress/risks.Close interaction with the following counterparties: - CC7 construction division CNCEC (China) - PC contractor - TECHNIP (France) - EP contractor - Linde (Germany) - EP contractor - NIPIgaz(Russia) - EPC-m contractor