Member of Technical Staff - Product (Backend)

Modal; New York (NY); On-site; USD 150,000 - 270,000; Full time

Job summary

Modal is seeking strong backend engineers to build developer tools for AI workloads at scale. You’ll design and ship scalable Python services and data pipelines, collaborating with frontend and data teams to enable new AI workflows.

Experience with modern web apps, observability, and data systems is valued. This role requires in-person work at our NYC office and offers equity with a competitive salary range.

Qualifications

• Experience building and shipping modern web apps end-to-end.
• Frontend TypeScript, backend Python, and data systems like ClickHouse.
• Strong observability and monitoring for large-scale workloads.
• Experience with billing/payments, B2B SaaS tooling, or enterprise/LLM workloads.
• Customer-focused mindset with ability to trade off speed vs. scale.
• Willingness to work in-person at the NYC office.

Responsibilities

• Architect and ship backend services used by AI workflows at scale.
• Collaborate across frontend, data, and product to ship developer tooling.
• Improve observability, reliability, and performance of critical systems.

Skills

Frontend TypeScript

Python backend

ClickHouse

Observability

LLM workloads

Job description

About Us:

Modal provides the infrastructure foundation for AI teams. With instant GPU access, sub-second container startups, and native storage, Modal makes it simple to train models, run batch jobs, and serve low-latency inference. Companies like Suno, Lovable, and Substack rely on Modal to move from prototype to production without the burden of managing infrastructure.

We’re a fast-growing team based out of NYC, SF, and Stockholm. We’ve hit 9-figure ARR and recently raised a Series B at a $1.1B valuation. We have thousands of customers who rely on us for production AI workloads, including Lovable, Scale AI, Substack, and Suno.

Working at Modal means joining one of the fastest-growing AI infrastructure organizations at an early stage, with many opportunities to grow within the company. Our team includes creators of popular open-source projects (e.g. Seaborn, Luigi), academic researchers, international olympiad medalists, and experienced engineering and product leaders with decades of experience.

The Role:

We’re looking for strong backend engineers who love building a developer tools used by the largest AI companies in the world. You’ll be building for things at scale, but also for new AI workflows that change every day.

Requirements:

• Experience building and shipping modern web applications end-to-end. We care more about what you’ve built than how many years you’ve been building.




• Comfort working across the stack: TypeScript on the frontend, Python services on the backend, and ClickHouse for data and analytics.




• Deep knowledge of observability tools and patterns used for large-scale workloads such as custom sandboxes, training and inference for large language (LLM) and diffusion models.




• Experience with at least one of: billing/payments systems, B2B SaaS tooling, or enterprise software, or LLM / diffusion models inference and training loads.




• Strong product instincts; you think about customer problems, not just tickets.




• Ability to make good tradeoffs between shipping fast and building for scale.




• Ability to work in-person in our NYC office.

Compensation

$150K – $270K Offers Equity