Senior Software Engineer

Marble Technology Inc.; San Francisco (CA); On-site; USD 160,000 - 210,000; Full time

Benefits offered by this job

Equity

Competitive benefits

Job summary

Marble Technology Inc. in San Francisco is hiring a Senior Software Engineer to build the core experience of our AI-powered tax platform.

As an early hire, you will shape the architecture and features across the stack to deliver a robust, intuitive user experience for tax preparation. You’ll work with React, Remix, Typescript, Node.js, PostgreSQL and Weaviate, collaborating with the founding team to implement the product roadmap and apply AI-driven tax data throughout the platform from end to

Qualifications

• Experience building and scaling user-facing web apps.
• Proficient with frontend and backend web frameworks.
• Strong product intuition and attention to detail.
• Customer-focused with ability to deliver value.

Responsibilities

• Build core UX for an AI-first tax platform.
• Collaborate with founding team to shape product roadmap.
• Develop across the stack from frontend to deployment.
• Apply AI-driven data throughout the platform.
• Own end-to-end product lifecycle and quality.

Skills

Web app scaling

Frontend & Backend frameworks

Product intuition

Customer focus

Tools

React

Remix

Typescript

Node.js

PostgreSQL

Weaviate

Job description

About Us

Marble is building an AI-powered tax assistant and preparation platform that transforms how accounting firms and their clients handle tax season. We’re targeting the pain points of mid-to-large size accounting firms with intelligent tools designed to streamline complex tax workflows. We’re early stage, highly collaborative, and deeply focused on solving real, high-impact problems for our customers.

About the Role

We’re hiring a Senior Software Engineer to help build the core product experience of our AI-first tax platform. As an early hire, you’ll play a pivotal role in shaping the core architecture and features of our innovative AI-powered tax platform from its inception. This is a unique opportunity to contribute significantly to a fast-paced, AI-first startup, working across our applications to build a robust, intelligent, and intuitive user experience that will redefine tax preparation.

If you thrive in dynamic environments and are passionate about leveraging AI tools to solve real-world problems, we want to hear from you.

What You’ll Do

• Be at the cutting-edge of building the AI-first tax prep platform of the future

• Focus on building out our core user experiences

• Work closely with the founding team to build out our product roadmap

• Apply our AI-driven tax data throughout our platform

• Be comfortable operating across our entire stack and product lifecycle end-to-end

What We’re Looking For

• You have experience building and scaling user-facing web apps

• You’ve worked with a variety of web frameworks (frontend and backend)

• You have strong product intuition and attention to detail

• You love being focused on solving customer problems and delivering the most value to them

Bonus Points

• Working with AI products and tools

• Working with ETL pipelines or managing data at scale

• Working at fast-paced startups with product-led growth

• Experience in the tax, accounting, or fintech space

Tech we use

• Frontend : React, Remix (React Router)

• Backend : Typescript, Node.js (Fastify), Postgres, Weaviate

• Infra : AWS, Kubernetes, Terraform, Airflow

Why Join Us?

• Build the tax prep platform of the future by making sense of vast amounts of tax data

• Work at the forefront of applying the latest AI strategies to solve real, high-value problems

• Build from 0 -> 1 alongside a team that values autonomy, pragmatism, and rewards self-initiative

• Highly competitive compensation, equity, and benefits