Open Source Fullstack Engineer

The Opportunity

AI is rapidly transforming the world. Whether it’s developing the next generation of human-level intelligence, enhancing voice assistants, or enabling researchers to analyze genetic markers at scale, AI is increasingly integrated into various aspects of our daily lives.

Arize AI is the leading AI observability and evaluation platform, empowering AI engineers to build and deploy high-performing, reliable models. As the AI landscape shifts from traditional ML to generative AI and agentic systems, Arize ensures teams have the tools to monitor, troubleshoot, and improve AI in production.

About Arize Phoenix

Large Language Models (LLMs) like GPT4 are capable of human and super-human reasoning, but they don’t understand your personal data, are unable to perform complex tasks, remember the actions they performed yesterday, and so on. The core mission of the Arize OSS team is to enable developers to build LLM-powered applications with safety and observability in mind.

We are at the forefront of a new way to build software. Doing this successfully will usher in a new age of knowledge automation and completely redefine the modern tech stack.

Our product offerings consist of an open-source Typescript libraries as well as an enterprise platform. Arize Phoenix has hundreds of thousands monthly downloads and is used from large enterprises to early-stage startups - it is both easy to get started but robust for production use. We’re backed by TCV, Foundation Capital, Swift Ventures, and Battery Ventures.

Qualifications

Experience that would be helpful for this role:

1. Shipped web applications or completely new product features from scratch. Have gone from prototype to production serving end users in a short amount of time.
2. Shipped AI/LLM-native applications - from UX to core algorithms.
3. Iterated rapidly with customers - translate user feedback into features back to proactive user discovery. Help jointly develop and iterate on product roadmap for core features.
4. Worked with product and design, and also demonstrated instances of wearing the PM hat yourself to proactively scope and design features.
5. Shipped applications that scaled to millions of users.
6. [Bonus] machine learning experience.

Values that we look for:

1. Integrity, Alignment, and Passion
2. Adaptability and the ability to work with limited resources
3. Intellectual Horsepower (Smart x Get Things Done)
4. Level up the people around you
5. Domain specific knowledge

What You’ll Work On

• [Primary] Front-end/full-stack work for our OSS offering.
• FE stack React, GraphQL, etc. 
• Backend stack: Python, Nodejs, Docker, Cloud services, databases, etc. etc.
• [Secondary] General feature development, maintenance, and education for our open-source libraries (Python and Typescript)

What We’re Looking For

• This is NOT a role for everyone – it demands an exceptional level of drive and commitment. In return you can expect world class mentorship and opportunities to accelerate your career in the most important field in software today. You should be comfortable with:

  • Taking ownership of complex problems from day one
  • Putting in the extra effort to learn new technologies rapidly
  • Pushing yourself outside your comfort zone regularly
  • Maintain high standards of code quality despite being new to the industry
  • Think critically about system and product design rather than just following instructions

Location:

The estimated annual salary and variable compensation for this role is between $100,000 - $185,000, plus a competitive equity package. Actual compensation is determined based upon a variety of job related factors that may include: transferable work experience, skill sets, and qualifications. Total compensation also includes a comprehensive benefit package, including: medical, dental, vision, 401(k) plan, unlimited paid time off, generous parental leave plan, and others for mental and wellness support.

While we are a remote-first company, we have opened offices in New York City and the San Francisco Bay Area, as an option for those in those cities who wish to work in-person. For all other employees, there is a WFH monthly stipend to pay for co-working spaces.