İsmail Yankayış

Senior Backend Engineer

AWS · Serverless · Event-Driven

About

İsmail Yankayış is a Senior Backend Engineer with 7+ years of experience building and running production systems on AWS. A 2019 Computer Engineering graduate of Dokuz Eylül University, İsmail works mostly with TypeScript and Java, designing serverless, event-driven architectures and managing infrastructure as code with AWS CDK and Terraform. Currently leading backend architecture, delivery planning and mentoring at Yolda.

Experience

  1. — Present

    Yolda

    Lead Software Engineer

    Lead the backend architecture of a production AWS platform, modernizing legacy services into serverless microservices and leading its post-acquisition transition. Provide technical direction, planning and code review, and own the product roadmap end to end.

    • TypeScript
    • Node.js
    • AWS Lambda
    • EventBridge
    • SQS
    • AWS CDK
    • Infrastructure as Code

  2. —

    Yolda

    Backend Software Engineer

    Designed and operated a serverless, event-driven backend on AWS for business-critical workflows. Built REST APIs and asynchronous services with TypeScript, Java and MongoDB, automated multi-account infrastructure with AWS CDK and Terraform, re-architected workloads for usage-based scaling to cut cloud spend, and mentored junior engineers.

    • TypeScript
    • Java
    • Node.js
    • MongoDB
    • AWS Lambda
    • API Gateway
    • SQS
    • SNS
    • AWS CDK
    • Terraform
    • Infrastructure as Code

  3. —

    Netaş

    Full Stack Software Engineer

    Built Java and Spring Boot REST APIs and React interfaces for internal test tooling, including WebSocket-based real-time control of multiple mobile devices for large-scale test automation and Appium integration.

    • Java
    • Spring Boot
    • React
    • PostgreSQL
    • Oracle SQL
    • WebSocket
    • Appium

  4. —

    Netaş

    Software Test Engineer

    Built mobile and web test automation frameworks with Selenium and Appium, raising automated coverage by 60%, set up Jenkins regression pipelines, and designed 2,000+ automated test cases that reached a 94% regression pass rate.

    • Java
    • Selenium
    • Appium
    • Jenkins

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Skills

Backend

  • Node.js
  • TypeScript
  • Java
  • REST APIs
  • Microservices
  • Event-Driven Architecture

Cloud & Infrastructure

  • AWS
  • Serverless
  • AWS Lambda
  • API Gateway
  • SQS
  • SNS
  • EventBridge
  • AWS CDK
  • Terraform
  • Infrastructure as Code
  • CI/CD

Data & Observability

  • MongoDB
  • PostgreSQL
  • DynamoDB
  • CloudWatch
  • New Relic