Senior Software Engineer, Infrastructure

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're seeking an experienced software engineer to join our Infrastructure team and help build the foundation for our rapidly growing financial technology platform. The Infrastructure team at Parafin owns core platforms spanning across cloud infrastructure, developer experience, data infrastructure and security. In this role, you'll design, implement, and maintain critical infrastructure systems that power our products and services, ensuring reliability, scalability, and security. What You’ll Be Doing: Design and implement robust, scalable infrastructure platforms to support our growing user base and expanding product offerings Collaborate with cross-functional teams to support new classes of applications and use cases Develop and maintain software spanning cloud infrastructure, developer experience, data infrastructure, and security Work to better availability guarantees, system performance, and observability Build easy-to-use abstractions with Terraform to empower engineers and increase development velocity Mentor junior engineers and contribute to the technical growth of the team What We’re Searching For: 4+ years of experience in software engineering, with a focus on infrastructure and distributed systems Strong design, coding, and debugging skills; expertise in understanding/advocating for secure and scalable design/coding practices Deep understanding of cloud platforms (preferably AWS) and their services Experience with technologies and concepts like Airflow, Datadog, Buildkite, Postgres, and Auth. Familiarity with infrastructure-as-code practices and tools such as Terraform Knowledge of relational database systems Strong problem-solving skills and ability to debug complex systems Excellent communication skills and ability to work effectively in a collaborative environment We Prefer If You Have: Experience with financial systems or working in the fintech industry Contributions to open-source projects or internal tools Knowledge of infrastructure best practices and experience building easy-to-use abstractions What We Offer Salary Range: $230k-$265k Equity grant Medical, dental & vision insurance Unlimited PTO & work from home flexibility 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.