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Oykun YENAL

@oykunyenal

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Engineering team lead at Creaware who architected payment orchestration and cut PR cycle time by 35%.

Turkey

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What I'm looking for

I'm available immediately and open to remote roles across Europe, the UK, and the Middle East time zones, as well as hybrid or on-site roles in İzmir.

At Creaware, I led a cross-functional team of up to 15 engineers while staying hands-on with architecture and code. I architected payment orchestration across iyzico, PayTR, Stripe, and partner gateways, and built .NET Core services for ERP integrations.

I also built Twilio SMS and WhatsApp messaging for four countries and automated tenant provisioning through the Coolify API, reducing setup to a single click. Introducing AI-assisted development cut PR cycle time by about 35%.

At K2M, I designed an internal stock and order management system using Clean/Onion Architecture and CQRS. I added Redis caching to a call-detail-record system processing more than two million records per day, making its real-time panel usable.

Earlier, I built .NET Core ERP and marketplace integrations at Projen Yazılım and production applications at Dokuz Eylül University. In a personal Azure project, I deployed cloud operations automation with AI alert triage and a RAG runbook assistant.

Experience

Work history, roles, and key accomplishments

Current

Project-based Support

Current

Creaware

Jan 2026 - Present (10 months)

Continuing project-based support for the platform, including maintenance, integrations, and production support.

Development Team Lead

Creaware

Jan 2024 - Jan 2026 (2 years)

Led a cross-functional team of up to 15 engineers, architected payment orchestration, and modernized a legacy monolith. Introduced AI-assisted development, cutting PR cycle time by ~35%.

Senior Software Engineer

K2M

Jan 2023 - Jan 2024 (1 year)

Designed architecture for an internal stock and order management system and added Redis caching to a call-detail-record system processing 2M+ records per day. Built real-time dashboards with WebSockets and deployed Dockerized services on GCP.

.NET Core C#EF Core MediatR PostgreSQL Redis Hangfire WebSockets Docker GCP Linux Clean Architecture CQRS

Senior Software Engineer

Projen Yazılım

Jan 2021 - Jan 2023 (2 years)

Built B2B/B2C modules and ERP integrations on .NET Core microservices, delivered Masterpass payment integration, and designed a REST-based integration API with RabbitMQ messaging.

.NET Core C#Vue.Js PostgreSQL Elasticsearch RabbitMQ Docker Clean Architecture DDD Microservices Payment Integration ERP Integration

Computer Engineer / Full Stack Developer

Dokuz Eylül University

Jan 2015 - Jan 2021 (6 years)

Delivered production .NET/C# applications on Oracle and SQL Server used university-wide, including an Academic Performance Evaluation System and a monitoring SPA for network devices.

.NET Framework C#Oracle SQL Server