Linas Ozeraitis, Software Developer in Vienna, Austria
Linas Ozeraitis

Software Developer in Vienna, Austria

Member since August 13, 2017
Linas is a creative full-stack senior developer. With 10+ years of experience in a broad range of software development projects, he keeps a strong focus on productivity and quality. Linas looks at software development as a craft, and constantly works on improving his own skills and knowledge.
Linas is now available for hire


    Augmented reality, ARCore, ARKit, MRTK, Hololens, Node.js, Firebase, React...
  • Freelance
    JavaScript, Node.js, HTML5, Webpack, React, Angular, REST, graphQL, Firebase...
  • ovos.GmbH
    JavaScript, HTML5, CSS, PHP, MySQL, Apache, Nginx



Vienna, Austria



Preferred Environment

*nix, Git, VSCode, react, angular, VR/AR

The most amazing...

...project I've build was a platform for realtime communication between users and an arduino robot playing piano while streaming from John&Yoko suite, Amsterdam.


  • Founder/Technical Lead

    2018 - PRESENT
    • Developed system architecture and implementation for a BIM-based augmented reality software for quality assurance in architecture, engineering, construction, and facility management industries.
    • Designed and implemented augmented reality "viewers" for iOS, Android, DAQRI, and Hololens (ARKit, ARCore, MRTK).
    • Designed and implemented a 3D front-end dashboard to view visualize 3D IFC facility models and the sensory/QA data associated with that facility.
    • Designed and implemented a back-end layer to enable CRUD and real-time communication for the IFC data.
    • Investigated and set up a JAVA based BIM server to act as an IFC to geometry converter and revision manager.
    Technologies: Augmented reality, ARCore, ARKit, MRTK, Hololens, Node.js, Firebase, React, GraphQL, Three.js, xeogl, BIM server
  • Freelance Developer

    2017 - PRESENT
    • Created online interactive learning/skill testing tools for Austrian State Agencies.
    • Built an online local food delivery system.
    • Developed a system with real-time data mining, big-data management, and load balancing for an interactive navigation app.
    • Created a browser-based platform for realtime video conferencing.
    Technologies: JavaScript, Node.js, HTML5, Webpack, React, Angular, REST, graphQL, Firebase, Docker
  • Senior Software Developer

    2014 - 2017
    • Designed and developed an augmented reality framework to be used on LAN connected devices.
    • Collaborated with "Volkswagen" on implementing augmented reality training scenarios for an assembly line (
    • Introduced and optimised new workflows to work with browser-based 2D and 3D content.
    • Working with Bank Austria implementing various tools, from interactive chart services ( to user interfaces for ATM machines for Bank Austria.
    • Collaborated with "Karlsruhe Institute of Technology" in implementing and testing principles of "Semantic web" in practical applications.
    Technologies: JavaScript, HTML5, CSS, PHP, MySQL, Apache, Nginx
  • Software Developer

    2010 - 2014
    • Worked on various websites, including award-winning Austrian online Pavilion for World Expo.
    • Collaborated with "Steinway and sons" implementing award-winning online piano tool.
    • Consulted and worked on PHP code and MySQL routines optimisation to bring websites to blazing speed.
    Technologies: JavaScript, HTML5, CSS, PHP, MySQL, Apache, Flash, AS3
  • Senior developer

    2009 - 2010
    • Led a team in building an online food delivery service.
    Technologies: PHP, MySQL, Apache, Javascript, HTML, CSS
  • Freelance Web Developer

    2003 - 2009
    • Worked with organizations from around the world, developing websites that include eCommerce, booking, portfolio, blog, and multilingual functionalities.
    • Increased traffic and enhanced page ranking by improving website structure, performing Search Engine Optimization (SEO) and Search Engine Marketing (SEM) for local improvements.
    • Developed UI/UX strategies that include wireframes and mockups and for small and medium-sized companies.
    • Designed and implemented .NET interface for local newspaper archiving platform.
    • Designed and developed several content management systems based on LAMP stack.
    Technologies: .NET, HTML, XML, ActionScript, JavaScript, PHP, MySql, .NET
  • Web Developer

    2001 - 2003
    IDEA "Interaktyvi reklama"
    • Built state of art (for that time) websites.
    • Developed and maintained in-house CRM and CMS.
    • Designed web-based games with Flash (AS2/AS3).
    Technologies: PHP, MySQL, Apache, HTML, Javascript


  • React/Redux Page - Oegreissler (Development)

    Oegreissler - is a platform for farmers and their clients providing the best experience for delivering the local products to nearby neighborhoods.

  • Gentics Mesh UI (Development)

    Angular CLI based UI for a headless content management system.

  • React/Redux Page - Onlinetest (Development)

    A website for Austrian state agency to test the skills of young people if they are ready to become an entrepreneur.

  • AR Research Project for VW (Development)

    Research project for Volkswagen, implementing educational training with AR glasses for an assembly line.

  • Piano for Peace – Amsterdam (Development)

    Live stream in memory of the legendary bed-in by John Lennon and Yoko Ono

    On March 26, 2012, a live stream of the “Piano for Peace” campaign recalled the legendary bed-in by John Lennon and Yoko Ono in the Hilton Hotel in Amsterdam. The microsite linked the event with the online community. From March 23-25, users could play their songs via a virtual piano on the microsite and optionally save a picture of themselves.

  • Always up for a Challange (Other amazing things)

    Chrome experiment - Halloween cam.

    Transform your face into ghost mime. Face detection and WebGL filters. Chrome and Firefox only. Needs good lighting conditions.

    *Edit. Now Edge, Safari, Android, and iOS. iOS image upload only.

  • "Spermex" (Development)

    "Spermex" - an educational, tap-fast-as-you-can game for "Österreichische Gesellschaft für Familienplanung". IOS: Android:

  • Fluent in Manipulating Pixels on Your Browser (Other amazing things)

    It's a browser-based game with some awesome nostalgia graphics and sounds.


  • Languages

    Sass, CSS, PHP, HTML5, C#, JavaScript, TypeScript, Java
  • Frameworks

    Angular Material, Unity3D, .NET, Angular, ARKit
  • Libraries/APIs

  • Tools

    Canvas, Angular CLI, Adobe Photoshop, Sketch
  • Platforms

    Firebase, Docker, ARCore
  • Storage

    MongoDB, MySQL, NoSQL
  • Other

    Embedded Software Engineer, Basketball, Augmented Reality (AR), Mixed Reality (MR)
  • Paradigms

    Unit Testing


  • Bachelor's degree in Computer Science
    2005 - 2007
    Vilnius Gedinimas Technical University - Vilnius, Lithuania
  • Bachelor's degree in Computer Science
    2001 - 2004
    Vilnius Business College - Vilnius, Lithuania
  • Bachelor's degree in Computer Science
    2002 - 2003
    University of Bedfordshire - Luton, UK

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