Senior Software Engineer
Quanta
Software Engineering
San Francisco, CA, USA
USD 175k-235k / year + Equity
Posted 6+ months ago
Quanta is an AI-powered accounting and finance platform that fixes a major frustration for businesses: stale and slow financial data. We can do in seconds what takes our competitors weeks, which is why we’re trusted by many of today’s fastest growing startups.
Today’s status quo is a cycle of painful finance data lag caused by manual and infrequent processes. We’re solving this by automating accounting from the ground up, replacing outsourced manual work with software and static, manually entered numbers with a live, contextual view of the business. Our goal is to achieve something currently impossible: enabling every business decision to be made with instant and complete clarity. In doing so, we can help every business thrive.
About us
We are a tight-knit team of 16, working fully in-person in downtown San Francisco.
Our team combines deep experience across finance, product, and large-scale systems. We’ve built accounting platforms at Affirm, ledgers at Stripe and Robinhood, and helped scale products from first prototypes to systems handling billions in transactions. We’ve also led complex software programs at Meta, including multiple Quest headset launches that brought together thousands of engineers across hardware and software. From founders and first finance hires to product leads and founding engineers, we understand our customers because we’ve been in their shoes, and we care deeply about the future of finance we are building.
About the role
As an early engineer at Quanta, you’ll help define not just our product but our company. You’ll play a central role in shaping our architecture, engineering culture, and long-term strategy. We’re looking for someone who thrives in fast-moving environments, loves solving hard problems, and takes ownership from idea to production.
What you’ll do
Design, build, and ship features across our stack that directly impact customers
Collaborate closely with product and design to define what to build, not just how
Help set technical direction, architecture, and engineering best practices
Use AI to help customers accelerate accounting workflows and uncover deeper insights from their financial data
Explore how AI can accelerate software development, improve reliability, and help us scale to new business types
Contribute to building an exceptional, high-trust engineering culture
Move fast, make pragmatic decisions, and continuously improve our systems
What we’re looking for
Full stack experience, comfortable shipping end-to-end features independently
7+ years of professional software engineering experience, ideally at web-scale or high-growth companies
Strong product sense, with curiosity about how people use what we build
Bias for action, ownership, and improving systems without waiting for permission
Focus and prioritization to ship what matters most
Collaborative mindset, and enjoyment of working in person with a small, driven team in our San Francisco office
Excitement about the intensity, ambiguity, and opportunity of an early-stage company
Interest in exploring how AI can strengthen both customer outcomes and internal development velocity
Bonus points
Experience with React/TypeScript and Python (FastAPI)
Experience building financial systems of record or products in fintech or accounting domains
Our Benefits
Above-average early stage equity
Competitive early stage stage salary ($175-235K)
All the office tools and equipment you need to be productive
Health/dental/vision insurance
401K
Commuter benefits
Take-what-you-need paid vacation
Expensed lunches and dinners in the office
Join us
One of the best parts of joining a company this early is that you become a part of defining it. If you’re excited about shaping the future of accounting and finance, send your resume to careers@usequanta.com.