Hızır S.

Hızır S.

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.

AI, ML & LLM

Blockchain Blockchain & Cryptocurrency Cardano Blockchain

Frontend

JavaScript

Backend

Node.js

Database

noSQL

DevOps

AWS GCP GCP BigQuery

Other

Java Agile software development Architecture Design Scala Typescript Erlang Elixir Decentralized Finance (DeFi) Ethereum Smart Contracts Smart Contracts Cardano Rust

Work history

UpStack
UpStack
Senior Software Engineer & Architect
2021 - Present (4 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 (3 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 WarehouseIoTGCPAWSData 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

Showcase

Java Developer - SocialWire
Java Developer - SocialWire

  • SocialWire aims to hyper-optimize Facebook ads experience by encouraging organic user sharing and promoting stories to valuable potential customers through Facebook Sponsored Stories.

  • A recommendation engine for eCommerce was built utilising Hadoop MapReduce and equivalent technologies.

  • The project was funded for $2M post successful implementation.

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

  • ComeOn Group, established in 2008, has grown from a startup to a prominent player in online gaming with a lean yet skilled workforce.

  • It practices a multi-brand strategy and has a wide software ecosystem that includes payment, fraud detection, and game integrations.

  • The group modernized their operations by designing and implementing new systems, transitioning from the legacy codebase to a new era, and expanded their workforce in their Istanbul office.

Software Engineer - Leaf Inc
Software Engineer - Leaf Inc

  • Leaf Systems GmbH, founded in June 2013, focused on enhancing communication in the gastronomy sector.

  • The company innovated by using mobile devices and tablets for dispatching meal and beverage orders, accelerating processes, and shortening communication paths.

  • Contributions were made in developing a web UI for analytics and reports, while Android developers worked on the project's core.