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OneSignal

San Francisco Bay Area, CA
26 - 50 employees
Smart customer engagement
OneSignal is building the best platform for businesses to intelligently engage with customers across every channel. We provide a simple interface to push notifications, email, and in-app messages, letting content creators focus on quality user engagement instead of complex implementation. When you pick up your smartphone, the first thing you see is a push notification - maybe there’s a breaking news alert, an HQ Trivia game reminder, a message from a dating site, or football scores… Whatever...
Role for: Back-End Engineer Front-End Engineer Full-Stack Engineer Generalist Engineer Low-Level Systems Engineer Mobile Engineer
Technologies: Rust Ruby Ruby on Rails PostgreSQL Redis Java Go TypeScript React Objective-C Kafka Docker NGINX HAProxy

LaunchDarkly

San Francisco Bay Area, CA
101 - 250 employees
Deploy code when you want. Release features when you’re ready.
LaunchDarkly is the feature management platform that software teams use to build better software, faster. Development teams use feature management as a best practice to separate code deployments from feature releases. With LaunchDarkly teams control their entire feature lifecycles from concept to launch to value.
Role for: Back-End Engineer Full-Stack Engineer Generalist Engineer
Technologies: Go React Redux MongoDB Elastic Search Redis HAProxy Kafka

imgix

26 - 50 employees
The world's largest distributed image-processing pipeline, powering some of the largest sites on the Internet.
imgix is an easy-to-use hosted service that makes images on the Internet impactful, engaging, responsive, and super performant. Technologies: Python C Objective C Lua NGINX HAProxy MongoDB Go Google Cloud Data Centers AngularJS MySQL AWS Varnish

Hipmunk

51 - 100 employees
The fastest, easiest way to plan travel
Hipmunk is the fastest, easiest way to plan travel. Our website, mobile app and chat bots help save time and money by comparing top travel sites to show the perfect flight or hotel at the cheapest price. Hipmunk offers the most comprehensive travel search, from commercial flights, trains, and charter flights to hotels and vacation rentals through Airbnb and HomeAway. The unique display makes it easy to visually compare results to choose the best option. Technologies: Python PostgreSQL Redis iOS Android Swift Javascript React Tornado Puppet HAProxy Elastic Search

Nylas

New York, NY and San Francisco Bay Area, CA
51 - 100 employees
APIs that make it an order of magnitude easier for companies to add 💌 📅 📇 integrations in their apps
Nylas makes a modern REST API that enables developers to easily integrate their apps with email, contacts, and calendars.
Role for: Back-End Engineer Front-End Engineer Full-Stack Engineer Generalist Engineer
Technologies: Python MySQL Redis HAProxy Linux NGINX ansible Javascript Kafka Electron React Redux RXJS Elastic Search AWS Jenkins MyPy Flux Flow

Classdojo

Remote and San Francisco Bay Area, CA
51 - 100 employees
The simple way to build an amazing classroom community
We're a communication platform that connects students, teachers and parents. Our mission is to create incredible classrooms and build tight feedback loops between all three groups. For example, using our software, a teacher can give positive reinforcement to a student during the school day which would then be added to an end of week report sent to the parent.
Role for: Full-Stack Engineer
Technologies: Node.js Redis MongoDB Redshift React Javascript MySQL Kotlin Swift Redux HAProxy AWS Android iOS Development Terraform Consul Docker

Kensho

51 - 100 employees
Scalable machine intelligence and analytics systems for the most critical government and commercial institutions in the world.
Kensho is an analytics and machine learning company. We serve the financial industry as well as the national security sector. Our major investors are Google, Goldman Sachs, JPMorgan, and In-Q-Tel (the venture arm of the CIA). Within the financial industry we are the leading provider of analytics and machine learning to Wall Street's premier global banks and financial institutions, including Goldman Sachs, J.P. Morgan, Bank of America Merrill Lynch, and Soros Fund Management. Technologies: React Canvas D3 Pandas Numpy Scikit-Learn Django Celery Kubernetes PostgreSQL OrientDB Elastic Search RabbitMQ Redis NGINX HAProxy Git Jenkins Selenium