Senior Software Engineer, Merchant Platform
Company: Parafin
Location: San Francisco
Posted on: April 1, 2026
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Job Description:
About Us: At Parafin, we’re on a mission to grow small
businesses. Small businesses are the backbone of our economy, but
traditional banks often don’t have their backs. We build tech that
makes it simple for small businesses to access the financial tools
they need through the platforms they already sell on. We partner
with companies like DoorDash, Amazon, Worldpay, and Mindbody to
offer fast and flexible funding, spend management, and savings
tools to their small business users via a simple integration.
Parafin takes on all the complexity of capital markets,
underwriting, servicing, compliance, and customer service for our
partners. We’re a tight-knit team of innovators hailing from
Stripe, Square, Plaid, Coinbase, Robinhood, CERN, and more — all
united by a passion for building tools that help small businesses
succeed. Parafin is backed by prominent venture capitalists
including GIC, Notable Capital, Redpoint Ventures, Ribbit Capital,
and Thrive Capital. Parafin is a Series C company, and we have
raised more than $194M in equity and $340M in debt facilities. Join
us in creating a future where every small business has the
financial tools they need. About the Position: We are looking for
an experienced platform-focused software engineer to join our
Merchant Platform team in San Francisco to help build a scalable
platform that will help power the suite of Parafin’s financial
offerings. The Merchant Platform team owns the money movement
infrastructure that powers all of Parafin as well as the suite of
product-agnostic tools that enable product teams to delight the
customers. You will work with engineering and non-engineering
stakeholders across the company to launch several new products and
regularly experiment with our existing products to improve the
end-user experience. You will own our core platform and help
identify, prioritize, and execute on infrastructure opportunities
to accelerate product development and maintain high levels of
reliability. The ideal candidate will thrive in a fast-paced
environment, demonstrating strong technical fundamentals, the
ability to navigate ambiguity and take ownership of projects from
inception to completion. What You’ll Be Doing: Design and build
scalable systems that support our merchant-facing products and
services. Develop features that enhance the merchant experience and
drive engagement. Collaborate with cross-functional teams to
deliver seamless product integrations. What We’re Searching For: 5
years of experience building and operating production backend or
platform systems. Bachelor's Degree or higher in Computer Science
(or related field) You care deeply about building high-quality
software and take immense pride in your craft. You are comfortable
owning and driving the development of both product and platform
initiatives from scratch. You take the initiative to identify
commonalities between different problem statements and design
appropriate abstractions accordingly. You have a strong grasp of
engineering fundamentals. You have experience building and
operating asynchronous systems or data pipelines in production
environments. You are excited about working on a small team and
helping us set the foundations for the company. What We Offer:
Salary Range: $230k-$265k Equity grant Medical, dental & vision
insurance Work from home flexibility Unlimited PTO Commuter
benefits Free lunches Paid parental leave 401(k) Employee
assistance program If you require reasonable accommodation in
completing this application, interviewing, completing any
pre-employment testing, or otherwise participating in the employee
selection process, please contact us.
Keywords: Parafin, Elk Grove , Senior Software Engineer, Merchant Platform, IT / Software / Systems , San Francisco, California
