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abrahas ⁫

@abrahas

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CTO at Hiiro, built its marathon training app foundation across Django, SwiftUI, and AI-generated plans.

Spain

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At Hiiro, I built the technical foundation for a marathon training app for iOS and Apple Watch, live on the App Store. That work includes a Django REST API, a SwiftUI client, real-time Garmin activity ingestion, and AI-generated training plans using OpenAI and Mistral.

At Yandex, I led work on Qloud, its in-house container orchestration platform, and later ran a department focused on orchestrating L3/L4 load balancers. Earlier, I designed and built HonchoCRM, a multi-tenant SaaS CRM, and developed distributed game server infrastructure at Mail.Ru Group.

Experience

Work history, roles, and key accomplishments

Engineering Team Lead

Copper

Apr 2022 - Apr 2023 (1 year)

Led the enterprise division adapting Copper's digital asset custody platform for institutional clients, including on-premise deployments and custom integrations.

Distributed Systems On Premise Integration Team Leadership Compliance Low Latency Systems

Head of Department

Yandex

Jun 2020 - Apr 2022 (1 year 10 months)

Led a department orchestrating L3/L4 load balancers across Yandex's network, redesigning the system for better partition tolerance and configuration consistency with no downtime.

Load Balancing Network Infrastructure System Design Team Leadership Hiring Roadmapping

Engineering Team Lead

Yandex

Feb 2018 - Jun 2020 (2 years 4 months)

Led a team building Qloud, Yandex's in-house container orchestration platform, maximizing hardware utilization across a heterogeneous fleet while ensuring reliable deployments.

Container Orchestration Kubernetes Distributed Systems Performance Optimization Team Leadership

Senior Software Engineer

Yandex

May 2016 - Feb 2018 (1 year 9 months)

Worked on a global job scheduling system for service deployments and ML workloads, focusing on performance optimization, architecture, and internal integrations.

Java Scala C++Distributed Systems Performance Optimization Architecture

Technical Partner

HonchoCRM

Nov 2014 - Jan 2018 (3 years 2 months)

Designed and built a multi-tenant SaaS CRM from scratch, handling architecture and coordinating a small distributed team of freelancers.

Python Django AngularJS Multi tenant architecture Team Coordination Budget Management

Server Team Lead / Senior Software Engineer

Mail.Ru Group

Apr 2011 - May 2016 (5 years 1 month)

Built game server infrastructure for Allods Online and Skyforge, including network layer, replication systems, and a distributed game server on an actor model.

Java C++Distributed Systems Network programming Replication Actor Model Team Leadership

Technical Consulting

Performance Lab

Oct 2012 - Feb 2013 (4 months)

Audited and rescued a delayed banking project, introducing basic engineering practices and writing a framework to help the team complete remaining work.

Consulting Project Rescue Engineering Practices Framework Development

Software Engineer

Informtel (Unima)

Jun 2010 - Apr 2011 (10 months)

Developed Qt-based desktop clients for a storage/call center/billing platform and contributed to early service-oriented features on JavaEE.

Qt Framework C++Java EE Desktop Applications

Software Engineer

K.I.D.

May 2008 - Jun 2010 (2 years 1 month)

Developed software for industrial nondestructive testing devices, including ASM firmware, Linux kernel modules, and Qt/C++ GUI for data visualization.

ASM C Linux Kernel Qt Framework C++Embedded Systems