Senior Software Engineer, Partner 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 user-focused backend software engineer to join our
Partner Platform team in San Francisco. You will play a crucial
role in shaping the partner experience at Parafin by building
industry-leading developer-first experiences. The Partner Platform
team owns the foundational systems that power partner integrations
at Parafin. We build and operate partner data ingestion pipelines,
DAG-based processing systems, public APIs, durable webhook delivery
infrastructure, sandbox environments, and partner-specific
integrations. We collaborate across engineering and data teams to
ensure partner data reliably powers underwriting, risk evaluation,
and reporting workflows. Our roadmap includes major platform
modernization efforts, including evolving our data architecture and
strengthening the reliability and scalability of our asynchronous,
event-driven systems. 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: You
will take ownership of key components of our partner platform
infrastructure, including partner data ingestion and sharing
systems and public APIs, and external webhook delivery systems, and
lead exciting new initiatives leveraging our partner-facing
interfaces You will drive impactful product initiatives aligned
with product vision for the ultimate partner journey with Parafin,
including the partner-facing dashboard, developer tooling, data
integrations, and the platform systems that power ingestion, APIs,
and real-time partner updates. You will collaborate with
stakeholders across the company to prioritize and design new
products and experiments. You will design and operate asynchronous,
event-driven systems to reliably process partner data and deliver
real-time updates to partner systems. 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, Lodi , Senior Software Engineer, Partner Platform, IT / Software / Systems , San Francisco, California
