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Luka Horvat, Product Management Developer in Osijek, Croatia
Luka Horvat

Product Management Developer in Osijek, Croatia

Member since September 26, 2013
Luka is an engineer with seven years of experience in development and team leadership. Over the past few years, he has risen to management positions, where he has performed a wide variety of tasks from software architecture, project planning and management, to hiring and client handling.
Luka is now available for hire



  • JavaScript, 4 years
  • Microsoft SQL Server, 3 years
  • Product Management, 3 years
  • Agile Software Development, 3 years
  • ASP.NET, 3 years
  • C#, 3 years
  • Hyperledger Composer, 1 year
  • Blockchain, 1 year
Osijek, Croatia



Preferred Environment

Windows, Visual Studio, Git

The most amazing...

...thing I've organized is a worldwide development competition for IEEE members which saw several hundred participants.


  • Head of Talent Operations

    2017 - PRESENT
    Toptal, LLC
    • Acted as a liaison between product and operations teams. Ensured that operations teams get tools they need to be as successful as possible in their daily work.
    • Created feature specifications and oversaw design, planing, and testing phases of projects across several different teams.
    • Led a "Labs" team and managed all aspects of all of its projects. The task of the team was to experiment and move very quickly with implementing tools outside the platform that would be used by different teams.
    • Managed several enterprise accounts and worked with them on creating and filling remote teams.
    • Led the efforts of launching Toptal's blockchain specialization. This included creation of dozens of theoretical and practical tests, screening processes, documentations, learning materials, and public articles.
    • Led the technical side in organizing a "Blockchain Challenge" event which saw several dozens of participants solving different blockchain based puzzles and assignments. The goal of the challenge was to provide fundamental knowledge for already experienced talent to start learning blockchain technologies.
    Technologies: Blockchain, JavaScript
  • Director of Engineering

    2015 - 2017
    Toptal, LLC
    • Interacted with clients and managed engagements between clients and Toptal freelancers.
    • Worked on assessing client requirements and defined project feasibility and potential costs.
    • Ensured that clients are matched with the right talent for every engagement by utilizing Toptal's proprietary talent database and matching algorithms.
    • Provided feedback to the product team on what kind of enhancements Toptal's clients and talent would need to be able to use the platform in a better way.
    Technologies: Toptal Platform
  • Head of Engineering

    2013 - 2015
    • Worked on introducing new processes to the company like code reviews, modular task tracking, sprint planning, backlog grooming, and others, which in turn optimized delivery pipeline and transparency.
    • Acted as technical authority when it came to software architecture and code quality. Used code reviews as means to teach new employees and ensure persistent quality.
    • Used Visual Studio analysis tools to identify bottlenecks in the system and improve system overall performance.
    • Organized learning and knowledge transfer activities for the engineering teams.
    Technologies: .NET, ASP.NET, C#, MS SQL
  • Developer

    2014 - 2014, LLC (via Toptal)
    • Optimized dozens of pages in the CMS of previous developers.
    • Implemented bulk entry of items from XLS files using EPPlus, reducing the amount of time required for the data import by 80%.
    • Rewrote the home page to work with Ajax instead of doing full-page refreshes, which optimized the user experience and provided significantly less strain on the infrastructure.
    • Optimized custom build back-end services which managed auctions and correlated active users and their bids.
    • Made UI tweaks and UX enhancements in order to optimize overall user experience and retention.
    Technologies: ASP.NET, C#, jQuery, MS SQL, EPPlus, CSS
  • Project Leader

    2012 - 2013
    • Worked on back-end design and implementation of complex features in a custom ERP project based on VB.NET and C# technologies.
    • Lead engineering teams and managed multiple cross-functional projects.
    • Created multiple simulations for animal profitability and herd expansion rates which were based on extrapolation and current scientific research.
    • Provided technical assistance, debugged code, managed deployment pipeline, and worked on all other day-to-day development tasks.
    Technologies: C#, ASP.NET, VB.NET, MS SQL
  • Co-founder

    2010 - 2012
    • Designed and developed a multipurpose scientific calculator which was first of its kind for mobile devices.
    • Implemented dynamic mathematical function plotting with zooming and data extraction capabilities.
    • Designed and implemented an application that evaluates complex expressions of Boolean algebra.
    • Provided PR and technical support.
    • Deployed Symbian mobile applications.
    Technologies: C++, Qt, C#, Java, Symbian


  • PowerCalculator (Development)

    A multipurpose scientific calculator that enables complex arithmetic, matrix calculations, numeral system conversations, and graph plotting.

  • Solver (Development)

    An application that solves any expression of Boolean algebra.

  • Stochastic Approach on Hash Cracking (Other amazing things)!

    A scientific paper on hash cracking methods and evaluation of stochastic approaches to them.

  • Proposal of mLearning System for Written Exams (Other amazing things)!

    A scientific article that proposes a design of a system that could be used on written exams to ease the material dispersion in classroom and reduce the costs.

  • IEEEmadC (Other amazing things)

    Organized the mobile application development contest that focused on IEEE students and applications for IEEE. I performed as a vice chair and later chair and managed technical aspects of the competition (rules, submission processes, validations). Also did communication with participants and partners.

  • Blockchain Specialization (Development)

    Lead Toptal's efforts around creating a blockckchain specialization. This included creating theoretical, coding, and practical (project) tasks and assignments and making sure the tests validate the quality of applying talent.

    Lead the technical side of "Blockchain challenge" event which saw several dozen applicants solving different types of puzzles and assignments in the blockchain space.


  • Languages

    C#, Visual Basic .NET (VB.NET), HTML5, JavaScript, C++, C, CSS
  • Frameworks

    ASP.NET Web Forms, ASP.NET Web API, ASP.NET MVC, ASP.NET, Visual Studio Extensibility, Qt, Qt Quick
  • Tools

    Microsoft Visual Studio, Qt Creator, Jira, Microsoft Team Foundation Server
  • Storage

    SQL CLR, Microsoft SQL Server, SQL Server 2008, SQLite, MongoDB, MySQL
  • Other

    APIs, Technical Project Management, Product Management, Integration, Software Architecture, Ajax
  • Libraries/APIs

    jQuery, Twilio API, Visual Studio SDK, Fellowship One, EPPlus
  • Paradigms

    Database Design, Scrum, Agile Software Development, REST, Waterfall Development
  • Platforms

    Hyperledger Composer, Blockchain, Windows, Hyperledger Fabric, Ubuntu


  • mag. ing. comp degree in Process Computing
    2011 - 2013
    Faculty of Electrical Engineering - Osijek, Croatia
  • univ. bacc. comp degree in Computer Science
    2008 - 2011
    Faculty of Electrical Engineering - Osijek, Croatia
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