Software Engineer .Net Core

Serdar Vayni

**** **** **. *** *****, CA ***** 619-***-**** ******.***@*****.*** linkedin.com/in/wayni Highly technical Senior Software Engineer with over 16 years of experience developing high-performance, horizontally scalable, cloud-native applications, including large-scale e-commerce applications. Proficient with C#, .NET Core, Azure, and Microservices architecture and with a focus on the last 5 years on modernizing legacy monolithic applications into Microservices. Expertise includes Docker, Kubernetes, CI/CD pipes, React, SOLID principles, and Agile methodology. Including experience on the aviation side. Located currently in San Diego, CA (PST), and U.S.-work-eligible, and seeking remote positions where he can be a part of complex technology solutions.

CORE SKILLS

● Languages: C#, Python, JavaScript, Node.js, TypeScript, SQL Frontend: React, HTML5, CSS3

● Backend: ASP.NET Core, Express.js, REST APIs, Webhooks, RabbitMQ, Socket IO, Websocket

● Databases: Oracle, MS SQL Server, PostgreSQL, MongoDB, Redis

● DevOps & Cloud: Azure Cloud, Docker, Kubernetes, Terraform, GitHub Actions, CI/CD, Linux

● Tools: Git, Jira, Agile (Scrum/Kanban), Swagger, Postman, Confluence

● Architectures: Microservices, Event-Driven Systems, CQRS, DDD, TDD PROFESSIONAL EXPERIENCE

PLUXEE,

Full Stack Engineer

(Remote) Turkiye

May 2020–Present

● Established a scalable Content Management System (CMS) on .NET Core and developed over 20+ reusable React components, enhancing modularity on the front-end.

● Added robust multilingual support using MongoDB and i18n libraries.

● Established and developed an API Gateway with Node.js as the single entry point for microservices, employing TypeScript for the purpose of type safety.

● Incorporated and developed a standardized logging system and a dynamic Webhook system for improving system monitoring and API integration functionalities.

● Better backend performance and code maintainability using the CQRS and custom middleware patterns within the .NET Core platform.

● Managed the conversion of a legacy monolithic system into a distributed microservices system using .NET Core and Docker, improving scalability, flexible deployment, and isolation for services.

● Migrating critical business logic out of the database triggers into the API layer, improving maintainability, testability, and closeness to the domain-driven design intentions. PARAQR,

Software Architect

(Remote) Turkiye

Jun 2024–Jan 2025

● Managed the architectural design and execution for relocating a legacy monolith application into a cloud-native .NET Core Microservices architecture deployed on Azure, enhancing scalability and maintainability considerably.

● Created a scalable infrastructure on Azure and utilized its capabilities to achieve a cost reduction on cloud operations of up to 60%.

● Achieved a 30% improvement in database performance and overall application response time through optimization efforts and refactoring.

● Authored and created RESTful APIs for end-to-end service-to-service communications for the microservices architecture.

DOMINOS

Full Stack Engineer / DevOps Consultant

(Remote) Turkiye

Apr 2019–Dec 2019

● Directed the re-architecting and building of a high-volume loyalty platform on ASP.NET Core Microservices.

● Integrated Redis for distributed caching, Elasticsearch for the purpose of sophisticated search, and deployed services running the Azure Kubernetes Services (AKS) for container orchestration.

● Fostered best practices for DevOps, established CI/CD pipelines, and kept detailed documentation for knowledge sharing and support.

KETCHUP LOYALTY MARKETING

Team Lead – Senior Software Engineer

(Onside) Turkiye

May 2015–Mar 2019

● Led a team of engineers and defined the architecture for a high-availability, loyalty-based mobile backend system using ASP.NET Core.

● Mentored team members and expedited project pace through the use of Agile/Kanban philosophies.

● Reduced infrastructure costs thanks to accurate Azure cloud scaling estimates and planning for resources. ADDITIONAL EXPERIENCE

HURRIYET

Senior Software Engineer

(Onside) Turkiye

Jan 2014–Apr 2015

TRENDYOL.COM

Senior Software Engineer

(Onside) Turkiye

Oct 2012–Jan 2014

VERISOFT

Senior Software Engineer

(Onside) Turkiye

Feb 2011–Oct 2012

BEYCON

Software Engineer

(Onside) Turkiye

Mar 2010–Feb 2011

GOZEN HOLDING

Software Engineer

(Onside) Turkiye

Aug 2008–Aug 2009

EDUCATION

SELCUK UNIVERSITY

Bachelor of Computer Systems,

Konya, Turkiye

Sep 2003-July 2008

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