Bakhatnur Baityeli, Software Developer in Dubai, United Arab Emirates
Bakhatnur Baityeli

Software Developer in Dubai, United Arab Emirates

Member since August 18, 2022
Bakhatnur is a back-end developer with 12 years of experience in the eCommerce, crypto exchange, blockchain and food delivery industries. He has developed various services from scratch and scaled the companies legacy services and platforms to millions of users. He is proficient in multiple technologies, including Java, Spring Boot, .Net, Node.js, and AWS Cloud computing services.
Bakhatnur is now available for hire

Portfolio

  • Talabat
    .NET, AWS, PostgreSQL, C#, IntelliJ, MacOS, .NET Core, AWS Lambda, Redis...
  • GOPAX
    Node.js, AWS, Python, Java, Spring Boot, MySQL, IntelliJ, Linux, MacOS...
  • TMON
    Java, Spring Boot, MySQL, IntelliJ, Linux, MacOS, AWS Lambda, Redis...

Experience

Location

Dubai, United Arab Emirates

Availability

Part-time

Preferred Environment

Java, Node.js, .NET, C#, .NET Core, JavaScript, Amazon Web Services (AWS), AWS Lambda

The most amazing...

...thing I've developed is the GOFI platform that offers various fixed and open-term savings products that allow earning interest on users' crypto asset holdings.

Employment

  • Back-end Developer

    2021 - PRESENT
    Talabat
    • Developed new features on the vendor platform and scaled it to handle 100,000 requests per minute from 30,000 RPM.
    • Improved the vendor ranking system by experimenting with various A/B testing techniques.
    • Improved the performance of the vendor platform by 50%. As the vendor platform is the company's core service, the change I made improved the overall company's system by 25 %.
    Technologies: .NET, AWS, PostgreSQL, C#, IntelliJ, MacOS, .NET Core, AWS Lambda, Redis, Amazon Web Services (AWS), Algorithms, Data Structures, SQL, Python, Amazon ECS (Amazon Elastic Container Service), Amazon ECR (Amazon Elastic Container Registry), CI/CD Pipelines, Docker, REST APIs, Microservices, Spring Microservice, Caching, GitHub, Git, Jira, Miro, Apache Kafka, Amazon DynamoDB, Amazon SQS, AWS Push Notification Service (AWS SNS), HTML, CSS, APIs, Back-end, Blockchain & Cryptocurrency, AWS CloudFormation, RESTful APIs
  • Senior Back-end Developer

    2018 - 2021
    GOPAX
    • Developed user KYC and AML services using Node.js and WebSocket APIs.
    • Built crypto-related financial services and platforms. First-hand experience in the blockchain industry. I also built the GOFi platform that gives interest to fixed-term and flexible-term products.
    • Created the order matching algorithm for the crypto exchange.
    Technologies: Node.js, AWS, Python, Java, Spring Boot, MySQL, IntelliJ, Linux, MacOS, .NET Core, Redis, JavaScript, Amazon Web Services (AWS), Algorithms, Data Structures, SQL, Amazon ECS (Amazon Elastic Container Service), Amazon ECR (Amazon Elastic Container Registry), CI/CD Pipelines, Docker, Full-stack Development, React, React Redux, REST APIs, Microservices, Spring Microservice, Caching, Financial Software, Mobile Web, Algorithmic Trading, Cryptoeconomics, Cryptocurrency, ERC20, GitHub, Git, Jira, Miro, Vue, MongoDB, Amazon DynamoDB, Amazon SQS, AWS Push Notification Service (AWS SNS), HTML, CSS, APIs, TypeScript, Express.js, Back-end, PHP, Blockchain & Cryptocurrency, AWS CloudFormation, WebSockets, RESTful APIs
  • Senior Back-end Developer

    2016 - 2018
    TMON
    • Developed a photo review service and review moderation portal for the eCommerce platform.
    • Built the Today's Pick deals. Utilized various caching technologies to improve the performance as the Today's Pick deals are shown on the main page and accessed by millions of users.
    • Improved the performance of the service by flattening data and denormalizing by utilizing queue technologies and NoSQL databases.
    Technologies: Java, Spring Boot, MySQL, IntelliJ, Linux, MacOS, AWS Lambda, Redis, JavaScript, Algorithms, Data Structures, SQL, Python, CI/CD Pipelines, Full-stack Development, AngularJS, REST APIs, Microservices, Spring Microservice, Caching, Financial Software, Mobile Web, GitHub, Git, Bitbucket, Shopify API, Jira, Vue, MongoDB, Couchbase, Apache Kafka, HTML, CSS, APIs, TypeScript, Express.js, Back-end, PHP, Apache, LAMP, RESTful APIs
  • Android Developer

    2008 - 2016
    Samsung
    • Developed in-house applications for the Samsung Galaxy S series.
    • Contributed to the Samsung TouchWiz and SDK by implementing reusable APIs and services.
    • Built a Screen Mirroring solution, the first of its kind in the 2010s. It was one of the standout features of the new Galaxy S series.
    Technologies: Java, Android, Android SDK, IntelliJ, MacOS, Algorithms, Data Structures, Perforce, Kotlin, C, C++, APIs, RESTful APIs
  • Co-founder

    2005 - 2008
    Massagan.com
    • Developed Massagan.com, one of the most popular social networks website in the Kazakh language.
    • Implemented everything from scratch, from back end to front end using JavaScript, PHP, MySQL, and Apache (LAMP stack).
    • Managed the deployment and user engagement and made strategic decisions on the product.
    Technologies: Algorithms, PHP, Linux, MySQL, LAMP, Apache, RESTful APIs

Experience

  • GOFi | A Blockchain-based Financial Service
    https://www.gopax.co.kr/gofi?tab=my-product

    GOFi offers various fixed and open-term savings products that allow customers to earn interest on their crypto asset holdings.

    We distributed an interest daily for the open-term products, and for the fixed-term products, the interest would be paid along with the principal amount at the end of the term.

  • Vendor List Service
    https://apps.apple.com/us/app/talabat-food-grocery-order/id451001072

    A .Net-based back-end service that lists the restaurants for a given user's location. The system calculates the user's location and retrieves the best-matched restaurants with pagination, sorting, and ranking.

    While retrieving the restaurants from the database, the system joins more than 25 tables and returns the data in 100 milliseconds.

  • Order Matching Platform
    https://www.gopax.co.kr

    A Java-based in-memory order matching platform for the cryptocurrency exchange.

    The platform is a highly available, low latency software that matches the bid orders with the asks orders between the various crypto coins and fiat currencies. E.g., BTC-USD, ETH-USD, or BTC-ETH.

  • Korendy | Invoice and Billing Platform
    http://www.korendy.com.tr

    A billing and invoice generator plugin using Shopify API for Korendy.com. The application uses Shopify's admin APIs and Turkish invoice generator application and is customized for korendy.com, a leading cosmetic shopping platform.

  • Massagan.com
    https://web.archive.org/web/20080920122753/http://www.massagan.com/

    A social network website in the Kazakh language built using the LAMP stack between 2005 and 2010.

    Though the website is not active anymore, at one point, it was considered one of the largest and the most popular websites in Kazakhstan.

    We were two engineers who developed the website from scratch.

Skills

  • Languages

    Java, C#, JavaScript, SQL, HTML, CSS, Python, C, C++, TypeScript, PHP, Kotlin
  • Frameworks

    .NET, Spring Boot, Android SDK, .NET Core, AngularJS, Spring Microservice, Express.js, Angular
  • Libraries/APIs

    Node.js, React Redux, REST APIs, Vue, React, Shopify API
  • Tools

    Amazon ECS (Amazon Elastic Container Service), Amazon ECR (Amazon Elastic Container Registry), IntelliJ, Git, GitHub, Perforce, Bitbucket, Jira, AWS CloudFormation, Amazon SQS, Apache, AWS Push Notification Service (AWS SNS)
  • Paradigms

    Microservices
  • Platforms

    Android, AWS Lambda, Amazon Web Services (AWS), Docker, Linux, Shopify, Blockchain, Apache Kafka, LAMP
  • Storage

    PostgreSQL, MySQL, Redis, MongoDB, Couchbase, Amazon DynamoDB
  • Other

    AWS, Algorithms, Data Structures, Full-stack Development, Caching, Financial Software, Mobile Web, ERC20, Cryptocurrency, Cryptoeconomics, Miro, APIs, Back-end, Blockchain & Cryptocurrency, WebSockets, RESTful APIs, CI/CD Pipelines, Algorithmic Trading

Education

  • Master's Degree in Computer Science
    2006 - 2008
    Korea Advanced Institute of Science and Technology (KAIST) - Daejeon, South Korea

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