Baglan Orynbayev

Senior .NET Developer

Flowsell

Built payment, Telegram, and WhatsApp integrations, handling $20K+ monthly payment volume and 50,000+ messages monthly, with Telegram delivery reliability at 99.2%.

• Stack: ASP.NET Core, .NET/C#, Kafka, CQRS, Vue, Kubernetes, Yandex Cloud, DigitalOcean, Seq • Integrated Freedom Pay / Kaspi payment processors into an ASP.NET Core backend, implementing real-time transaction and webhook processing; configured and deployed the service to a Kubernetes cluster on Yandex Cloud / DigitalOcean — the platform processes $20K+ in monthly volume.

.NET Developer

ROQED

Built an LLM-assisted lesson creation app used by 10,000+ people and developed Unity education apps for Windows and Android.

• Stack: Vue, ASP.NET Core, C#, Unity, LLM API, Docker Compose, DigitalOcean, Agile/Scrum • Built a Vue + ASP.NET Core web application for teachers that leverages LLM APIs to auto-generate lesson content, serving 10,000+ users with 5,000+ weekly active sessions. • Developed cross-platform education apps for Windows and Android using Unity (C#), featuring interactive 3D learning environments for K-12 students. • Optimized Unity rendering and memory management on Android, improving performance on low-end devices and expanding the addressable hardware market.

.NET Developer

EPAM Systems

EPAM Systems is a global IT services and consulting company that builds software and provides engineering teams for businesses worldwide.

Built .NET delivery tooling and backend services, including gRPC that cut latency by 40% and Kafka event publishing with the Outbox pattern.

• Developed a static code analysis tool in .NET/C# to detect unused configuration parameters and integrated it into Azure Pipelines as an automated CI step. • Managed cryptographic keys and secrets via Azure Key Vault, configuring secure interoperability with Azure Pipelines for environment-based secret injection.

Bachelor of Science, Petroleum Engineering

Nazarbayev University