Hızır S.

Hızır S.

Senior Software Engineer & Architect

Istanbul, Turkey
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About Me

Hızır is a Senior Software Engineer & Architect with 10+ years of working in various environments from fast-paced startups to corporations, including his role as a tech lead of data engineering and architecture in Coca-Cola CCI, leading a team of 19 people. He specializes in Java and has hands-on experience with SDLC, Agile methodologies, and hiring and creating teams. Hızır had the chance to design his own flows to develop and design software, while also assessing and hiring 30+ people in the last 3 years.

Java 10 years Agile software development 10 years Architecture Design 8 years AWS 6 years noSQL 6 years Scala 5 years JavaScript 4 years Typescript 4 years GCP 4 years Erlang 2 years Node.js 2 years GCP BigQuery 2 years Elixir Blockchain 3 years Blockchain & Cryptocurrency 3 years Decentralized Finance (DeFi) 3 years Ethereum Smart Contracts 3 years Smart Contracts 3 years Cardano Blockchain 3 years Cardano 3 years Rust 3 years

Work history

UpStack
UpStack
Senior Software Engineer & Architect
2021 - Present (3 years)
Remote

  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participating in scrums consisting of cross-functional teams, both software and hardware.

  • Ensuring that features are being delivered efficiently and on time.

JavaScalaErlangElixirNode.jsJavaScriptTypescriptGCPAWSAgile software developmentArchitecture DesignGCP BigQuerynoSQL
Input Output (IOHK)
Input Output (IOHK)
Senior Software Engineer | Technical Manager
2022 - Present (2 years)
Remote

Working on Lace and Blockfrost open-source projects as an individual contributor.

DApps SolidityWeb3 Contract RustNode.js
Coca-Cola CCI
Coca-Cola CCI
Data Engineering & Architecture Lead
2019 - 2020 (1 year)
Istanbul, Turkey

  • Established 3 teams of data engineers and architecture totaling 19 people for one of the key bottlers in the Coca-Cola system.

  • Implemented a data lake, data warehouse, ODS, and two IoT solutions for factories.

  • Led 4 cloud environments in order of involvement: GCP, AWS, Azure, IBM Cloud.

Architecture DesignData EngineeringData WarehouseIoTGCPAWSIBM Cloud Managed ServicesData Lakes Azure
ComeOn Group
ComeOn Group
Senior Java Architect
2015 - 2019 (4 years)
Remote

  • Developed software solutions for a wide ecosystem including payment, fraud detection, game integrations.

  • Designed and implemented new systems and ported the legacy codebase to a new era.

  • Collaborated with stakeholders to implement new reliable and scalable systems using the latest technologies.

JavaArchitecture DesignAgile software developmentAWSnoSQLGaming Online Gaming
VNGRS
VNGRS
Senior Scala Developer
2012 - 2015 (3 years)
Remote

  • Architected and developed Leaf, an application to improve communication processes in the gastronomy sector.

  • Developed and designed Bookish.com, designed to be a competitor for amazon.com as a book catalogue site funded by the biggest publishers in the US.

  • Led the web and back-end team and actively developed using Scala and other technologies.

  • Developed various parts of the system including analytics and reporting modules, contributing to the core of the project.

ScalaJavaUI DesignAWSAgile software developmentArchitecture DesignAkkaNode.jsRailsBackbone.js
SocialWire
SocialWire
Senior Software Developer | Scalability Engineer
2011 - 2012 (1 year)
Remote

  • Developed and delivered the report mechanism and recommendation algorithms for SocialWire's recommendation engine on a high scale.

  • Re-implemented some parts of the distributed and scalable message passing page crawling system.

  • Worked on Facebook integration and data fetching parts, requiring a strong grasp of Java technologies.

JavaAgile software developmentHadoopRedisMySQLMongoDB
Risk Software Technologies
Risk Software Technologies
Software Engineer
2011 - 2012 (1 year)
İstanbul, Turkey

  • Performed software development and integration processes for the company's biggest two products: Market Risk and Portfolio Management.

  • Used multithreading, parallel execution (RMI), native programming (JNI with ANSI C), memory and CPU allocation.

  • Developed interface components using HTML, JavaScript, CSS, and Ajax.

JavaAgile software developmentMulti-threading programmingHTMLCSSJavaScriptAJAXJava RMIJava Native Interface (JNI) ANSI C CPU Boards
Various Companies
Various Companies
Java Developer
2007 - 2011 (4 years)
Istanbul, Turkey

  • Planned, developed, and tested e-devlet (government) transformation for İlan Kurumu (Press Advertisement Institution) in İstanbul.

  • Transformed the system including the inner workflow and outer presentation of features offered.

  • Re-implemented legacy ERP systems including CRM, HRM, purchasing, and stock control using Java and modern technologies.

JavaJava EESeamTomcat JavaFxIBM DB2EhcacheERPCRM Systems

Portfolio

Java Developer - SocialWire
Java Developer - SocialWire

SocialWire wants advertisers to hyper-optimize their Facebook ads experience. With SocialWire, brands can get users to organically share a story on Facebook’s Open Graph and then use Facebook Sponsored Stories to promote that story to their most valuable potential customers. Built a recommendation engine for eCommerce using Hadoop MapReduce and similar technologies (no Spark and similar were around at that time). The project was funded $2M after its successful implementation.

Software Engineer - Comeon.com
Software Engineer - Comeon.com

Founded in 2008, the ComeOn Group has had a fantastic journey growing from a small startup to a big player in online gaming. Powered by a lean but highly skilled workforce, it practices a multi-brand strategy to create better user experiences through meaningful brands. Its broad software ecosystem includes payment, fraud detection, game integrations, etc. Designed and implemented new systems, ported the legacy codebase to a new era, and hired developers for the Istanbul office.

Software Engineer - Leaf Inc
Software Engineer - Leaf Inc

The Leaf Systems GmbH was founded in June 2013 to improve communication processes in the gastronomy sector. The system implemented innovation using mobile devices and tablet computers to dispatch meal and beverage orders, which accelerated processes and transactions and shortened communication paths. Developed the web UI for analytics and reports, while Android developers contributed to the core of the project.