Full Stack Engineer

Novaflow (YC S25); San Francisco (CA); On-site; USD 100,000 - 130,000; Full time

Job summary

A biotech startup in San Francisco is seeking a software engineer to build user-facing features and develop data visualizations. The ideal candidate has a Bachelor's or Master's degree in Computer Science and at least 2 years of experience with web applications. Strong skills in Python, TypeScript, and React are essential. This role offers a unique opportunity to work closely with founders and gain insights into product strategy and the startup ecosystem.

Qualifications

• 2+ years of experience building production web applications.
• Highly product-oriented and cares deeply about user experience.
• Thrives in ambiguous, high-agency environments.

Responsibilities

• Build and ship user-facing features across the stack.
• Design and implement clean, reliable APIs for data processing.
• Develop dashboards and visualizations for scientists.

Skills

Python

TypeScript

React

PostgreSQL

User experience focus

Production web applications

Data-heavy applications

Education

Bachelor’s or Master’s degree in Computer Science, Engineering, or related field

Job description

Novaflow is bridging the gap between researchers and technology, creating tools in order to make analysis more accessible and efficient for everyday biologists. We are leveraging AI to allow biologists to analyze their own data in real time rather than outsource the work to other bioinformatics services. As an early stage company, we’ve already seen incredible excitement about us and the work we’re doing. We’re backed by some amazing investors including Y Combinator who believe in our bold vision to transform how scientific data analysis is done.

The ideal candidate possesses strong technical skills, a bias for action, and a drive for making a large, measurable impact in an early-stage environment. This individual thrives in complex, fast-paced environments and plays a pivotal role in driving the mission of the company forward with passion, focus, and scale.

The position is based in San Francisco. Having biology knowledge and experience is not required but is nice to have.

What you'll do:

• Build and ship user-facing features across the stack
• Design and implement clean, reliable APIs for data processing and visualization
• Develop dashboards, visualizations, and internal tools used by scientists and research teams
• Improve performance and scalability of data-heavy workflows
• Work closely with founders, users, and customers to shape product direction
• Shape product direction, engineering culture, and hiring processes from the ground up

What we're looking for:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent extensive experience
• Have 2+ years of experience building production web applications
• Comfortable with Python, TypeScript, React, and PostgreSQL
• Highly product-oriented and cares deeply about user experience
• Thrives in ambiguous, high-agency environments and enjoys owning problems end-to-end
• Experience in biotech, healthcare, or other science-adjacent domains
• Understanding of bioinformatics technologies
• Background building data-heavy applications or visualization tools
• Have prior startup experience or a strong desire to work close to the metal

This is the perfect opportunity for someone who wants to experience what it’s like to build a startup from the ground up. You’ll work directly with the founders, gain visibility into product strategy, customer conversations, and fundraising, and see what it takes to scale a fast-growing YC company. If you’re entrepreneurial and curious about being a founder one day, this role will give you the front-row seat to how world-class startups are built.