Jonathan R.

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 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 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 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 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 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 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 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 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 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 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