Senior Backend Engineer (Python AI/ML Developer Tools)

TL;DR

Senior Backend Engineer (Python AI/ML Developer Tools): Developing and maintaining marimo's core open-source Python notebook backend, including dataflow compiler and runtime, with an accent on library design, API simplicity, and composability. Focus on pushing the boundaries of interactive computing without complicating user experience and engaging with a large open-source community.

Location: Primarily hybrid in Livingston, NJ, New York, NY, Sunnyvale, CA, or Bellevue, WA. Remote work may be considered for candidates located more than 30 miles from an office, based on role requirements for specialized skill sets. Due to U.S. Government export regulations, candidates must either be a U.S. person (U.S. citizen, national, lawful permanent resident, refugee, or asylee), eligible to access export-controlled information without authorization, or eligible and likely to obtain required authorization.

Salary: $165,000–$242,000

Company

hirify.global is The Essential Cloud for AI™, a cloud platform provider founded in 2017.

What you will do

• Take ownership of projects across marimo's open-source ecosystem.
• Focus on marimo's backend and its Python ecosystem, including the core dataflow compiler and runtime.
• Influence critical decisions on library design, ensuring APIs remain simple yet composable.
• Design new capabilities that push the boundaries of interactive computing without complicating the user experience.
• Work in the open, engaging promptly and empathetically with a large and vocal community of users and contributors.
• Exercise judgment to balance community needs with the team's roadmap and vision.

Requirements

• 4+ years of experience in software engineering.
• Proficiency in Python with strong language-agnostic fundamentals.
• Proficiency in computer systems, including parallel computing, concurrency, and basic networking/inter-process communication.
• Experience in library design and/or open-source development.
• Strong communication skills, written and verbal.
• Due to U.S. Government export regulations, must be a U.S. person (U.S. citizen, national, lawful permanent resident, refugee, or asylee) or eligible to obtain required export authorization.

Nice to have

• A passion for and experience building developer tools, especially for AI, ML, or data.
• A passion for working with data and empathy for practitioners and researchers in AI, ML, data engineering, or NLP.
• An eye for visual and interaction design, with an emphasis on simplicity.
• Proficiency in Typescript, or a willingness to learn.
• Experience with AI engineering, including MCP and agents.
• Experience with SQL, databases, data engineering, and a systems language like C or Rust.

Culture & Benefits

• Competitive salary with a discretionary bonus and equity awards.
• Comprehensive benefits package, including 100% company-paid medical, dental, and vision insurance.
• Flexible Spending Account, Health Savings Account, and 401(k) with a generous employer match.
• Paid Parental Leave and flexible PTO.
• Hybrid work environment with remote consideration for candidates over 30 miles from an office.
• Company-paid Life Insurance, short and long-term disability insurance.
• Mental Wellness Benefits through Spring Health and family-forming support by Carrot.