Open to opportunities

Alkey Smagul

@alkeysmagul

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Middle Backend Developer (Golang) focused on scalable, high-performance distributed systems.

Kazakhstan

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What I'm looking for

I seek backend roles using Golang where I can design scalable systems, improve reliability and performance, work with microservices and integrations, and grow toward architecture or platform leadership.

I am a Middle Backend Developer specializing in Golang with experience building scalable backend components, microservices, and integrations for high-load enterprise and blockchain platforms. I designed and implemented API integrations (including SAP S4/HANA), wallet services, transaction retry mechanisms, and admin tooling that improved reliability and performance across multiple projects.

My work spans redesigning monoliths into microservices, applying Clean Architecture and DDD, optimizing database and I/O operations for speed, and raising conversion and stability metrics. I prioritize test coverage, robust error handling, and pragmatic architecture choices to deliver maintainable systems.

Experience

Work history, roles, and key accomplishments

Middle Backend Developer

KazMunayGaz

May 2025 - Aug 2025 (3 months)

Developed core backend components of a Contract Document Management System and implemented API integration with SAP S/4HANA for automated purchase order and work-act data exchange, improving processing speed and stability under high load.

Golang REST APIs Database Optimization PostgreSQL Docker Microservices Performance Tuning

Middle Backend Developer

Jas Ventures

Sep 2023 - Apr 2025 (1 year 7 months)

Built Apartchain.io NFT platform for fractional real estate using Ethereum and DDD; implemented wallet service, asynchronous processing to reduce confirmation time by 30%, and retry/error logging to increase reliability by 25%.

Golang Domain Driven Design Asynchronous gRPC Kafka Transaction Retry Mechanism

Junior Backend Developer

LiftKz

Aug 2022 - May 2023 (9 months)

Developed REST APIs with Gin and Echo, wrote tests covering 80% of code, applied Clean Architecture and split the system into microservices to improve scalability and readability for housing and communal services features.

Golang Gin Echo Microservices PostgreSQL

Middle Backend Developer

Artshop.asia

Rewrote backend in Golang for an arts marketplace, implemented caching and I/O optimizations to reduce image loading time by 40%, automated wallet creation, and increased new user conversion by 15% via an auth/email verification service.