Software Engineer

Sage Recruiting Inc.; San Francisco (CA); Remote; USD 90,000 - 125,000; Full time

Job summary

Sage Recruiting Inc. seeks a Founding Engineer for a seed-funded startup in New York focused on a next-generation serverless data platform. This mid-senior level role involves leading UI design, collaborating with engineering, and working with a high-caliber team in a 100% remote, async-friendly culture. Ideal candidates have solid UI development experience and familiarity with modern tech stacks including React and AWS.

Benefits

Competitive salary

Early equity

100% remote work culture

Async-friendly environment

Qualifications

• 3+ years of experience building polished, accessible and responsive UIs for AI or developer-facing tools.
• Expertise with React.
• Experience with Python and FastAPI, Flask or similar.

Responsibilities

• Lead design and development of the product’s web-based UI.
• Work closely with engineering leadership and product team.
• Contribute to core engineering efforts by connecting UI to backend services.

Skills

React

REST APIs

Git workflows

CI/CD pipelines

AWS Cloud services

Python

FastAPI

Flask

Job description

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This range is provided by Sage Recruiting Inc.. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

$90,000.00/yr - $125,000.00/yr

Sage Recruiting is looking for a Founding Engineer for a seed-funded startup based in New York. Our client is supported by top Silicon Valley funds, as well as individuals from esteemed institutions such as NVIDIA, Docker, AWS and Redis Labs. The founding team members are all from a company that was acquired in 2019 by a publicly traded AI-focused company.

Our client is focused on building a next-generation serverless data platform that can revolutionize how data engineers and scientists work. Their goal is to abstract data infrastructure away from engineers and data scientists, allowing them to focus solely on building data-driven applications using concepts they already know. The initial system was introduced to the market a few months ago and is now live at enterprise scale.

What You’ll Do

• Lead design and development of the product’s web-based UI, including key workflows, dashboards, and supporting visual interface
• Work closely with engineering leadership and product to ship fast, user-friendly features
• Leverage an existing design system to build and extend clean, scalable components
• Contribute to core engineering efforts by connecting UI to backend services (REST APIs, cloud workflows)
• Occasionally assist with backend tasks when needed (e.g., endpoint wiring, basic cloud infra)
• Work with the customer to ensure a strong user-centred design

What We’re Looking For

• 3+ years of experience building polished, accessible and responsive UIs for AI or developer-facing tools
• Expertise with React
• Comfortable working with REST APIs, Git workflows, CI/CD pipelines and AWS Cloud services
• Experience with Python and FastAPI, Flask or similar

Nice to Have

• Experience working with infrastructure or data platforms (e.g., Snowflake, Databricks)
• Exposure to CLI-based workflows
• Knowledge of SQL or analytics tools

Why Join

• Join a founder-level team solving complex infrastructure problems in elegant ways
• Help shape the front-end of a product already in use by engineers and data scientists at scale
• Work with a high-calibre, engineering-first team backed by industry-leading investors
• Competitive salary + early equity
• 100% remote, async-friendly work culture

If you're a Software Engineer who thrives in fast-moving environments and enjoys building elegant, intuitive UIs using modern design systems, apply today through Sage Recruiting.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Software Development

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