Jonathan Rhone

Miami, FL, USA

  1. Engineering

A decade inside early stage startups, largest exit $800M

I'm a former founder, I've helped companies like Streamlit, Deed and Hinge. I live in Miami and I love traveling.

  1. Python
  2. Full Stack Development
  3. Senior Backend Engineer
  4. Chief Technology Officer
  5. Flask
Hire Jonathan
Jonathan Rhone

Work

Experience

  • Galileo

    Galileo

    Senior Backend Engineer

    Nov 2024 - Jan 2026

    Galileo is the AI observability and eval engineering platform where offline evals become production guardrails.

    • Contributed key backend APIs and product features supporting the platform's v2 migration.
    • Built and hardened a streaming data export pipeline to support very large dataset downloads, reducing timeouts and improving throughput.
    • Implemented new LLM-as-a-Judge scorers into the evaluation platform, powering agentic quality signals in tables and workflows.
    • Drove core development of the Python and TypeScript v2 SDKs, filling endpoint gaps and improving contract behavior.
  • Streamlit (Acquired by Snowflake)

    Streamlit (Acquired by Snowflake)

    Software Engineer

    Mar 2019 - Feb 2021

    Streamlit is the fastest way to create data apps.

    • Collaborated in areas such as monitoring and alerting, APIs, microservices, infrastructure automation, and on-call rotation in our Kubernetes-based platform as a service
    • Participated in Python memory profiling, continuous integration and deployment, caching internals, and new 3rd party integrations to the open-source library
  • Hone

    Hone

    Devops Engineer

    Nov 2018 - Jan 2019

    Hone is the all-in-one leadership development platform for modern, distributed teams.

    • Built infrastructure automation tooling to deploy and manage a Docker Swarm cluster
    • Developed the build and system for our containerized Node.js platform layer
  • Melody

    Melody

    Chief Technology Officer

    Dec 2016 - May 2018

    Melody makes your music social. Combine media from across the web and share them with your followers.

    • Led a small team of developers across native and back-end development, using agile methodologies
    • Interfaced with the product team and executives to determine strategy and drive technical direction
    • Integrated data from multiple APIs, including Facebook, Instagram, YouTube, Spotify, and Apple Music
  • Deed (Y combinator)

    Deed (Y combinator)

    Chief Technology Officer

    Aug 2016 - Nov 2016

    Deed facilitates workplace giving and volunteering, to make contributing to social causes enjoyable and meaningful.

    • Led a small team of developers across native and back-end development
    • Managed daily processes using agile methodologies and drove technical direction
  • Stayful

    Stayful

    Software Engineer

    Dec 2015 - May 2016

    Stayful connects travelers with independent, boutique hotels, offering unique and authentic lodging experiences.

    • Developed the back-end platform for a hotel booking website similar to Priceline.com
    • Built a Slack clone for a concierge chat service using modern javascript technology
  • Grsp (ER accelerator)

    Grsp (ER accelerator)

    Director of Engineering

    Aug 2014 - Dec 2015

    Grsp assists users in making purchase decisions by utilizing comparison pricing, reviews and other information.

    • Developed the back-end for a mobile app that helps people shop while in a store
    • Managed a hybrid onsite/remote team of four developers across back-end, web, and mobile
    • Led project management and recruiting, working with the CEO to ensure the planning, execution, and success of the product
  • Shareablee, Inc

    Shareablee, Inc

    Software Engineer

    Jun 2013 - Feb 2014

    Shareablee enables media companies and brands to understand the impact and effectiveness of their cross-platform social media campaigns

    • Designed and implemented a distributed, fault-tolerant, and scalable data collection topology using Storm and other modern big data technologies
    • Migrated hundreds of gigabytes of data between PostgreSQL, Cassandra, and Elasticsearch, ensuring data sanity and zero loss of data
    • Managed cloud infrastructure on AWS EC2, in charge of server performance and on-call support
  • Hinge (acquired by Match)

    Hinge (acquired by Match)

    Software Engineer

    Mar 2013 - Apr 2013

    Hinge helps you meet new people through your friends. It’s the easiest way to discover people in your social circles to get to know.

    • Administered the Neo4J database for complex Facebook graph operations and "smart matching."
    • Conducted JVM tuning and analysis for optimal performance, detecting memory leaks in one of our scripts and allowing for 10x future growth
    • Mentored younger engineers on cloud infrastructure and distributed systems
  • Pict.com (acquired by Popsugar)

    Pict.com (acquired by Popsugar)

    Data Engineer

    Jul 2012 - Nov 2012

    Pict is a B2B publishing and analytics platform that enables brands to create “shoppable” photos.

    • Developed the data framework for a web app that embeds smart watermarks into images
    • Created a robust data pipeline and scalable infrastructure to scrape and index Pinterest
    • Designed a system to provide analytics on the virality and network effect of original content
  • Tinyco (acquired by SGN)

    Tinyco (acquired by SGN)

    Server Engineer

    Mar 2011 - Apr 2012

    Tinyco creates fun and delightful mobile gaming experiences. Their games, based on popular brands, included titles like Marvel Avengers Academy and Family Guy: The Quest for Stuff

    • Worked with a wide variety of technologies on projects related to real-time analytics and scalable social gaming architecture
    • Designed and developed a scalable click-tracking service, similar to bit.ly, for direct ad partners
    • Implemented a Cassandra-backed "saved game state" service layer to migrate our JSON blobs onto