Haris Amin

IonQ builds trapped-ion quantum computers. I work on the job platform, the distributed system that takes a quantum program from submission to result.

• Introduced distributed tracing to IonQ and built it on OpenTelemetry. It follows a job across its long, multi-service lifecycle, so one trace shows where a job went and where its time was spent.
• Led the migration of the job platform's primary datastore from MongoDB to PostgreSQL.
• Core contributor to job-platform operations, multi-region architecture and platform portability.

Symbiont builds a blockchain platform for financial institutions, with its own smart-contract language, SymPL, written in Haskell. I worked where the language meets its runtime and its data.

• Led the storage layer for SymPL and its type system, including a DSL for type-safe queries, joins and indexes over contract data.
• Worked on the language's standard library, test infrastructure and tooling, and on its interface to the custom runtime and the rest of the platform.
• Tuned Postgres indexing and queries so ledgers with billions of records stayed fast to query.
• Created a benchmarking framework for contracts and the platform, with reporting and regression tracking.

Pager Health, called Pager when I was there, connects patients to care over chat. I worked mostly on backend services and infrastructure in Node.js, Go and Elixir.

• Designed and built the real-time chat backend that replaced PubNub.
• Led a Go and Postgres bot platform that walks patients through structured clinical protocols. That chat and bot architecture later triaged millions of patients a day for COVID-19 symptoms in Colombia.
• Extended the RabbitMQ worker architecture, normalized schemas across MongoDB-backed services, and built a MongoDB-to-Postgres ETL pipeline for the data science team.

Glimpse was a dating app built on Instagram, so you met people through the photos they already shared. I started it with Elan Miller and Raquel Hernandez, and GV, First Round Capital, Sherpa Capital and several angel investors backed us.

• Built the native iOS app in Objective-C and Swift, with a focus on performance.
• Built the real-time messaging service, in Node.js on the Bayeux protocol, with Go services for the hot paths.

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We wound it down in 2015, and I wrote about it in Goodbye Glimpse.

Backend services and infrastructure in Ruby, Node.js and Go for a fitness streaming service.

• Built the API services for the mobile and TV apps, plus the Samsung Smart TV and PlayStation 3 clients.
• Built real-time messaging and the Rails, MongoDB and Redis API behind the MealSnap iPhone app.