Open to opportunities

Olzhas Karabekov

@olzhaskarabekov

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I build secure backend APIs, databases, and automation across Node.js, .NET, and Go.

Kazakhstan

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What I'm looking for

I'm looking to grow as a backend developer by building secure, production-ready APIs and databases, collaborating with an engineering team, and working across Node.js, .NET, or Go.

I delivered the primary REST API for JSC “Passenger Transportation”'s passenger support system, handling complaints, feedback, lost items, and refund requests through Node.js and NestJS.

I designed PostgreSQL schemas, built CRUD operations, implemented JWT authentication and staff-role access rules, and documented APIs with Swagger. I also contributed to architecture discussions with the engineering team.

For iDaryn, I built a complete .NET 8 Clean Architecture backend for a Kazakhstan national science-competition platform, including MongoDB, jury conflict-of-interest enforcement, stage-level permissions, and 30+ automated tests.

I also build practical systems independently, including a secured .NET backend integrated with a React/Vite frontend and a Go Telegram chatbot that routes passenger requests to the appropriate department.

Experience

Work history, roles, and key accomplishments

Junior Developer / Intern

JSC Passenger Transportation

Dec 2025 - May 2026 (5 months)

Developed and delivered the primary REST API for a new passenger support system using Node.js and NestJS, covering complaints, feedback, lost items, and refund requests. Implemented secure authentication with JWT, designed the PostgreSQL schema, and documented the API with Swagger.