Senior Staff Software Engineer, Frontend (Web Infra)

About the Position

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. We are looking for a Senior Staff Software Engineer, Frontend (Web Infra) to join our remote team in Canada. In this critical role, you will define and lead web platform and infrastructure across all web engineering teams.

You'll shape best practices, lead architectural choices, and drive the successful delivery of critical initiatives. This role requires a high level of technical ability and leadership, and experience with advancing and improving design systems, application architecture, CI/CD, observability, performance, and AI tooling for complex, mission-critical web applications.

You’ll help mentor and grow a talented team of senior engineers, and build relationships with architects and product teams across Affirm.

Responsibilities

• Build and drive web development strategy for all frontend teams
• Deliver critical improvements to our large monorepo build and deploy systems, focusing on high reliability and performance
• Architect and contribute to decisions on the right platform, tools, and technologies to support consistency and reliability
• Empower web engineers to leverage AI to improve delivery speed, code quality, and developer experience across all web engineers at the company. Help define Affirm’s web development AI strategy, leveraging agents and agent orchestration, to automate complex workflows.
• Design, implement, and extend core platform components and functionality to enable new products and features to be built
• Plan, design, and build our core platform software and systems to scale with an increasing number of users, features, business requirements, partners, and new engineers

Requirements

• 10+ years of experience architecting, building, and scaling Web Apps for a large user base
• A deep understanding of both the current and emerging web technologies, such as React, Typescript, NX, Oxlint, TurboRepo, RSPack, and Vite
• The ability to create and drive a complete technical vision and roadmap - you are detail-oriented, but you are able to step back, look at the big picture, and make bold system-level and platform-level calls for change.
• Track record of successfully leading critical projects and leveraging partner teams for company-wide results
• Extensive experience developing and implementing technical strategy that drove prominent change in system reliability and performance
• Previous project management or people management experience: You know how to influence, effectively communicate, and coach others
• Take Ownership: You embody an ownership mindset and help influence a similar culture to those around you.
• You have strong verbal and written communication skills that can help influence and share critical decisions with stakeholders
• This position requires either equivalent practical experience or a Bachelor’s degree in a related field.

We Offer

• Competitive salary: CAN base pay range per year: $209,000 - $269,000
• Equity rewards offered by Affirm Holdings, Inc. (parent company)
• 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, various Lifestyle needs, and family forming expenses
• Time off: Competitive vacation and holiday schedules allowing you to take time off to rest and recharge
• ESPP: An employee stock purchase plan enabling you to buy shares of Affirm at a discount

About the Company

Affirm is proud to be a remote-first company! The majority of our roles are remote and you can work almost anywhere within the country of employment. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities.

We’re extremely proud to offer competitive benefits that are anchored to our core value of people come first. Some key highlights of our benefits package include:

• Inclusive interview experience: We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process.
• Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affirm will consider for employment qualified applicants with arrest and conviction records.

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