Software Development Engineer

  January 2019 - Present

- Developing planning tools for regions expansions at AWS.

Senior Software Development Manager

Hepsiburada.com, October 2016 - January 2018

- Responsible for 20 people in 4 teams of the  "Product Group", working on creating, enriching, managing products that we sell at Hepsiburada, including product catalog  team, product APIs team, Product on-boarding team, Retail Listing Management team.

- Ensuring software delivery through all phases of development and developing long-term development and business technology strategies

- Responsible for efficiency of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations.

- Provide technical & solution architecture leadership and design best practices to achieve code quality & creation of efficient solutions for business

- Creating roadmaps with the teams in product area to provide the required scale to manage tens millions of products, and create efficient solutions to business problems.

- Helping people both technically and non technically to help them to grow through their careers. 

- Monitoring business KPIs to make sure stability and efficiency of systems

Tech Lead 

Hepsiburada.com, June 2008 - June 2011

- Ensuring that the team is delivering working software to the standards the department expects. 

- Reporting of tasks that have been completed every 2 weeks, and planning of future tasks 

- Team support, make sure that team is not blocked because of any technical or non technical issue within this time period 

- Created technical solutions for improving different business processes like RMA (return merchandise authorization), order management, order cancellations (line item operations), refund and paybacks and user coupons. 

- Implemented contract phone sale model on e-commerce - Integrated hepsiburada with search indexer (fredhopper)

Technical Program Manager

  February 2018 - January 2019

 - Responsible for the managing technical programs on delivering required planning tools for regions expansions at AWS .

Software Development Manager

Hepsiburada.com, June 2011 - October 2016

 - Responsible for 5-15 people in 2 teams (product catalog and retail listing management teams) for providing scalable solutions in the product domain. 

 - Built & Delivered Turkey's biggest product catalog re-platforming project with multinational team up to 15 people, using agile methodologies. 

 - Delivered Aggregated Product Rest Services for providing product information across enterprise, which helped improving response time of storefront by 3x-4x 

 - Being highly involved in agile transformation of Hepsiburada. 

 - Leading team(s) for adopting development practices like TDD, code reviews and building CI pipelines for deployments to make the team more agile. 

 - Involved in recruitment process of 30+ teammates (BA/QA/Developer) for various teams at Hepsiburada

Software Engineer

Hepsiburada.com, June 2005 - June 2008

My responsibilities were, 

- Attending analysis session with business users, taking responsibility of technical analysis and design, 

- Developing applications supporting e-commerce platform 

- Integrations with various payment systems for commerce platform and ERP system 

- Integrations with shipping companies 

- Integrations between commerce platform and ERP system (SAP) 

- Develop new features for the commerce platform (Wishlist, bargain module, outlet sales, pim enhancements for jewelry sales, credit card installment campaigns, shipping discount campaigns, facet search capability for department pages on storefront, storefront ui enhancements) 

- Performance tuning on e-commerce platform, ms sql server, IIS and other components of environment

Software Engineer, Intern

Microsoft Turkey, June - August 2004

Product Onboarding Portal 
April 2017 - January 2018

POP (Product onboarding portal) is the main service that hepsiburada provides to its merchants, for creating nonexistent products in the single product catalog.

Tech Stack: Java, Spring boot, spring cloud, docker, mongoDb, Elasticsearch, netflix oss, microservices architecture, jhipster, elk stack

Hermes Project
Released in March 2015, Ongoing 

Hermes is the read layer for internal applications at hepsiburada for product and product related data. Using NancyFx / Node.js RestApi and MongoDb for database, hermes provides very fast data access for internal applications with easy to scale architecture (scale-out). Hermes is integrated with most of internal applications and now becoming one of main source provider service at hepsiburada.com. With integration of storefront application at hepsiburada with Hermes, performance of site is improved by approximately 4x. For other application integrations we also achieved similar performance improvements.

Tech Stack: Node.js, NancyFX, MongoDB, Docker, Varnish Cache, ELK Stack

Sales Forecasting & Replenishment Project
Released in June 2016

To be able to deliver purchased products to customers, sales forecasting is a crucial part of procurement process. With this project, we integrated cloud forecasting services to our procurement process. I was involved in technical design, solution design and integration phases of the project

Tech Stack: .net, SAP,BW, ETL framework

* For more information about other projects / more detail about these projects, please see info in linkedin profile page 

Product Catalog Replatforming (Hybris)
Released in Jul 2016, Ongoing 

Replatforming legacy product catalog tools at Hepsiburada with Hybris PIM. 

* With the delivery of the service , 4 million products (created in the last 10 years) migrated from legacy system and in 10 months, catalog size grew to 12 million. 

Tech Stack: Hybris platform, Java, Spring, SolR, Redis, elk

Morpheus Project
Released in August 2015, Ongoing 

Morpheus is the aggregation layer that stores parts of a canonical model in nosql data buckets, and by using custom etl framework developed with .net, provides a mechanism to build canonical model(s), supporting full & incremental data updates that can be consumed by different product information related systems.
Tech Stack: .Net 4.5 / Core, MassTransit, Akka.net, RabbitMQ, MongoDB, ELK Stack, Monitoring, Rest Api

Shipping Module Replatforming
Released in June 2011

Shipping module is replatformed from scratch, and integrated to SAP. With this module in place, ERP system capabilities of making line items changes improved dramatically. 
Tech Stack: .net, C#, MS Sql Server

Fredhopper Project
Released in April 2011

Fredhopper is a solution for delivering relevant and optimized digital shopping experiences through onsite search, navigation, merchandising and recommendations. Hepsiburada.com storefront is integrated with fredhopper to provide faceted search & navigation and trigger based recommendations.
Tech Stack: .net, C#, MS Sql Server, Fredhopper