Emre Gülay

• Led a team of 6, driving technical and development decisions
• Trained and mentored junior developers in Spark (Data Engineering) and Spring (Backend Development)

Responsibilities:

• Designing and implementing ETL and web backend services (Java & AWS) for 5G private networks
• Conducting technical interviews
• Mentoring mid. & jr. level engineers

Responsibilities:

• Designing and implementing ETL and web backend services (Java & GCP & Firebase)

Responsibilities:

• Designing and implementing big data services
• Mentoring jr. level engineers

Responsibilities:

• Developing big data services

Responsibilities

• Developing full stack web applications (Java)
• Mentoring mid. and jr. level engineers (Java)
  

Responsibilities:

• Designing & Prototyping full stack web applications and big data services.
• Mentoring mid. and jr. level engineers.

Projects & Prototypes:

• FMS Alerting Service: A big data solution (Maven) for generating fraud alerts for mobile prepaid subscriptions implemented with Scala, Spark, HBase, and PostgreSQL. The logic imports the raw mobile switch data located in HDFS, applies necessary refinements and transformations with Spark, and uses HBase or PostgreSQL (due to JVM level parameter sets) to store generated alerts, and as the final step sends generated alerts to internal fraud management application via SOAP.
• PBX Hack Detection Service(s): A big data & machine learning solution (Gradle) which contains multiple artifacts to capture hacked PBX devices which are implemented with Scala, Spark, and Spark ML. My role in this projects as a big data engineer was to produce and ensure (code) quality, sustainability, and maintainability of the solution.
• Draco v2: A customer care tool which is used by customer service representatives, operations, testing, and engineering to view customer profiles, activated services (tariffs, add-ons, passes and EU regulatory spending limits) and session information. The solution (Maven) is implemented with Java (Spring 5 with WebFlux) for the back-end with MongoDB, Node.js (Angular 2 and Angular Material with TypeScript) for the front-end.
• MindMap: A web-based solution (Maven) designed and developed during a 24h hackathon company event for the end users to contribute (voting and adding new nodes) pre-defined mind maps per department. The solution is implemented with Java (Spring 5 WebFlux) for the back-end with MongoDB, Node.js (Angular 2, Angular Material and PrimeNG with TypeScript) for the front end.

Responsibilities:

• Designing & Prototyping cloud-based applications and services.

Tech. Stack & Prototypes:

• Docker Containers - Automatic scaling possibilities based on workload
• Microsoft .NET Framework Core - Cloud based micro services design possibilities
• Entity Framework Core - Data access layer which covers SQL and NoSQL databases
• MongoDB
  

Responsibilities:

• Supporting Microsoft .NET based applications.
  

Responsibilities:

• Designing and developing web and desktop based applications.

Projects:

• Corporate Data Framework (SQL + SAP) for .NET Solutions: Class libraries which designed for Entity Framework 6.x (Code first approach) with Repository and Unit of Work patterns. The framework also ready to use within any dependency injection block such as Microsoft Unity with asynchronous database operations as well as includes custom extensions for real-time SAP function execution and schema conversion on RFC level.
• SAP Middleware API: A generic RESTful API (ASP.NET WebAPI) designed for real-time SAP function execution.
• SAP Middleware Power Tools: A desktop application which implemented by .NET Framework for testing connectivity, execution, extraction and conversion for both data and schema structures between SAP and .NET for all SAP Middleware API implementations.
• Spare Part Identifications: A web application (ASP.NET MVC 5 + Ext.NET) which extracts real-time spare parts data (included technical drawings from SAP DMS) from multiple ABAP server destinations via SAP Middleware API. This application designed as a gateway between SAP ERP and internal CRM application for service business.
  

Responsibilities:

• Designing and developing web, cloud (Windows Azure) and desktop based applications and APIs.

Projects & Prototypes:

• Corporate Data Framework (SQL) for .NET Solutions: Class libraries which designed for Entity Framework 6.x (Code first approach) with Repository and Unit of Work patterns. The framework also ready to use within any dependency injection block such as Microsoft Unity with asynchronous database operations.
• Generic Task Scheduler: A web and windows service based application suite designed with Ext.NET 2.x (web part) for executing, reporting and storing internal console applications.
• Application/Client health dashboard: A web-based application tracking/managing internal applications and server statuses.
• Google AdWords API: A generic RESTful API (ASP.NET MVC 5) on Windows Azure environment for internal use.
  

Responsibilities:

• Designing and developing web and desktop based applications.

Projects & Prototypes:

• Helpdesk: Web-based IT Helpdesk Application with contract management module.
• Travel Expenses: Web-based ERP application for storing, tracking, approving and reporting business travel expenses.
  

Responsibilities:

• Setup and maintain both Microsoft based server and client systems.
• Design and implement business applications based on Microsoft technologies.

Responsibilities:

• Analyze business flow differences between Turkish and Greek offices and assist software implementation(s)
• Developing and modifying insurance assistance software side modules.

Responsibilities:

• Maintain both Microsoft based server and client systems and assist systems engineers for server management operations.
• Analyze business flows and design applications, databases and infrastructures based on Microsoft technologies.
• Mentoring mid. and jr. level engineers.

Responsibilities:

• Train students about general coding syntax and development patterns on Microsoft VB6 and .NET framework