Amichay Oren, Sanic Web Server Developer in New York, NY, United States
Amichay Oren

Sanic Web Server Developer in New York, NY, United States

Member since March 3, 2019
As an entrepreneur of successful ventures, Amichay understands the importance of problem-solving and proactivity. As a hands-on tech executive, Amichay understands delivery processes at scale and attention to details. As a senior developer and systems architect, he is versed in cloud technologies, server-side development for scale, databases, ETLs, and IoT.
Amichay is now available for hire




New York, NY, United States



Preferred Environment

Amazon Web Services (AWS), PostgreSQL, Celery, AWS, Linux, C, C++, Git, Python

The most amazing...

...project I've worked on was the design and implementation of a real-time billing system serving 35+ million subscribers.


  • CTO & Co-founder

    2011 - PRESENT
    AppCard, Inc.
    • Founded a customer retention platform for retailer and grocery stores using Python and embedded IoT.
    • Led the product team in defining mobile, web, and embedded strategy, functionality, and UI/UX.
    • Designed and owned system architecture, software design, and technology stacks.
    • Developed significant parts of the server-side implementation.
    • Led DevOps, CI/CD, deployment, and monitoring process and tools.
    • Led technology, M&A, and DD processes.
    Technologies: Git, Linux, PostgreSQL, Nginx, Redis, Celery, Python
  • Consultant

    1999 - PRESENT
    • Provided technology evaluation, tech due diligence, stack design, and implementation reviews.
    • Reviewed design, architecture, and algorithms for leading customers.
    • Implemented boutique projects for unique, multidisciplinary needs.
    Technologies: Python, C, C++
  • Vice President of R&D

    2010 - 2011
    Vonage Holdings
    • Started as a consultant on mobile strategy for VG and later joined full-time as VP R&D.
    • Set up and hired a mobile-centric development team.
    • Restructured the R&D team and introduced Agile work methodologies and cloud technologies.
    • Introduced innovation rethinking, kickstarting internal processes to foster innovation.
    Technologies: Java
  • CTO

    2006 - 2010
    JAJAH, Inc.
    • Created and operated an international VoIP provider catering to over 30 million subscribers and becoming one of the fastest growing and innovating operators in the world.
    • Designed, implemented, and operated a network for telephony termination using open-source technology stacks.
    • Designed and implemented a real-time payment and billing system for pre- and post-payment plans.
    • Designed, implemented, and operated proactive fraud-prevention systems.
    • Participated in product definition and design processes, leading integrations with IBM, Yahoo, and Microsoft as well as discussions with partners and operators in Asia.
    Technologies: Microsoft SQL Server, VoIP, Mobile, Asterisk, C#.NET, .NET, C#
  • Development Manager

    2001 - 2006
    • Handled SAP's internal messaging system and online data collaboration as part of SAP Knowledge Management & Collaboration.
    • Owned the SAP .NET framework for integrating Microsoft with SAP technologies.
    • Collaborated with SAP's internal innovation committee for fostering and growing innovation.
    Technologies: Java, C++, C#.NET
  • CTO & Co-founder

    1999 - 2001
    Expression, Inc.
    • Designed, implemented, and operated a data collaboration platform for integration with application platforms including instant messaging, screen sharing, and more.
    • Designed and implemented an operating system on embedded devices for electronic books.
    Technologies: Assembler, Java, C, C++


  • Fractal Timeseries Analysis (Development)

    A collection of tools I've been using for analysis of timeseries. It's WIP as I'm exposing more and more tools I've been using over the years.

    In essence, calculating the fractal dimension: Understanding long-term memory, auto-correlation, and fractal dimension may help understand the boundaries of predictability, the type of underlying processes and which data-science tools may be put into play.

    I find timeseries analysis to be super helpful, from data-science to log analysis and system verification.


  • Languages

    Python, C, C++, Java, C#, C#.NET, Assembler
  • Frameworks

    Pyramid, .NET
  • Tools

    Celery, Git, Nginx, Asterisk
  • Paradigms

  • Platforms

    Linux, Mobile, Amazon Web Services (AWS)
  • Storage

    AWS RDS, Redis, PostgreSQL, AWS S3, Microsoft SQL Server
  • Other

    Sanic Web Server, AWS, VoIP


  • Bachelor of Science degree in Math & Computer Science
    1989 - 1992
    Tel-Aviv University - Tel-Aviv, Israel

To view more profiles

Join Toptal
Share it with others