Senior Software Engineer (Online Storage)

Senior Software Engineer (Online Storage)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. At

Affirm , data is fundamental to everything we do. Our data and storage solutions empower machine learning, artificial intelligence, cloud-based technologies, and other modern tools to create differential and scalable products. We prioritize building our own technology and investing in engineering talent, because we believe these are enduring competitive advantages that are difficult to replicate. Our expertise in sourcing, aggregating, protecting, and analyzing data has been a core competitive advantage of our platform since our founding. We use data to inform our analysis and decision-making, including risk assessment, in a way that empowers consumers and generates value for our merchants and funding sources.

The Online Storage team provides a set of managed databases as a platform, used to persist data for all

Affirm

services. Our platform automates operations and development on services on top of storage systems like AWS Aurora (MySQL), DynamoDB, and S3. We are responsible for various data and access patterns, including but not limited to mission‑critical financial transactional data, data‑science models, and any new persistence use case. Our mission is to provide trustworthy, intuitive, and cost‑efficient solutions to secure, store, analyze, and transform data at exceptional scale. We're growing fast and want you to enable us to scale our products to 10x and beyond through building world‑class systems that enable

Affirm

in its mission to provide honest financial products that improve lives.

What you’ll do

Lead projects toward improving our database architecture, focusing on scalability, reliability, performance, and cost efficiency.

Work with engineers managing

Affirm ’s distributed database technologies, especially AWS Aurora MySQL, Distributed SQL, and eventually expanding to DynamoDB and caching.

Design, build, and maintain highly durable and strongly consistent database‑as‑a‑service architecture.

Design and build solutions at scale for challenges such as multi‑region, active resharding, and globally available services.

Work closely with product teams to understand business requirements and translate them into robust database solutions.

Assist partners in achieving better query performance by suggesting optimizations and effective schemas.

Develop and enforce best practices in database design and management, ensuring data integrity, security, and optimal performance.

Stay abreast of industry trends and emerging technologies in transactional databases to continually enhance our systems and processes.

Participate in an on‑call rotation and collaborate with other teams, such as SRE, to solve production issues.

Lead and mentor engineers to define and execute on a roadmap aligned with stakeholder needs.

What we look for

Bachelor’s or Master’s degree in Computer Science with 5+ years of experience as a software engineer, including leadership exposure and mentoring junior engineers.

In‑depth, hands‑on experience with large‑scale database deployments in a production environment.

Expertise in distributed databases and database technologies such as MySQL InnoDB storage (preferred), Postgres, Spanner, Vitess, TiDB, CockroachDB, etc.

Solid understanding of distributed database architecture, data modeling, and performance tuning, particularly SQL tuning and optimization techniques.

Experience with database / table and backup‑recovery management.

Ability to benchmark, load‑test, and perform capacity planning for databases.

Familiarity with connection poolers and proxies such as ProxySQL, RDS Proxy, Pg Bouncer, etc.

Proficiency in Python or Kotlin or both.

Experience with AWS and Kubernetes.

Experience building software with IaC (Terraform or Crossplane) frameworks and tools.

Exceptional communication skills with the ability to engage effectively with both technical and non‑technical stakeholders.

Ability to create and triage database alerts, identify root causes, and implement corrective solutions.

Either equivalent practical experience or a bachelor’s degree in a related field.

What you’ll learn

In this role, you’ll understand the challenges of helping a fast‑growing company move toward a service‑oriented architecture. You’ll dive into scaling and availability challenges of infrastructural components that are the fundamental building blocks of a large‑scale system, hone your ability to apply different technologies to solve a wide array of real‑world problems, and build teams while working cross‑functionally with colleagues.

Pay Grade : N

Equity Grade : 8

Base pay is part of a total compensation package that may include equity rewards, monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents).

USA base pay range (CA, WA, NY, NJ, CT) per year : $190,000 - $240,000

USA base pay range (all other U.S. states) per year : $169,000 - $219,000

Affirm is proud to be a remote‑first company. The majority of our roles are remote, but you may be required to work from a specific location occasionally.

Benefits

Health care coverage –

Affirm

covers all premiums for all levels of coverage for you and your dependents.

Flexible spending wallets – generous stipends for spending on technology, food, lifestyle needs, and family‑forming expenses.

Time off – competitive vacation and holiday schedules allowing you to rest and recharge.

ESPP – employee stock purchase plan enabling you to buy shares at a discount.

We believe it’s on us to provide an inclusive interview experience for all, including people with disabilities. We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process.

For U.S. positions that could be performed in Los Angeles or San Francisco, pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance,

Affirm

will consider qualified applicants with arrest and conviction records.

By clicking “Submit Application,” you acknowledge that you have read

Affirm ’s Global Candidate Privacy Notice and hereby freely and unambiguously give informed consent to the collection, processing, use, and storage of your personal information as described therein.

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