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Senior Software Engineer, Backend (Authentication Experience)

Affirm · Remote CanadaRemote$12,750–$17,750 USD/messenior

In short

  • ▸Ingeniero backend senior que construye sistemas de autenticación y verificación de alta disponibilidad para clientes de Affirm.
  • ▸Trabajas en equipo para entregar características complejas, liderar a otros ingenieros y asegurar operaciones estables.
  • ▸Destaca por liderar con visión técnica, calidad de código y cultura de propiedad en un entorno global.

Strong verbal and written communication skills that support effective collaboration with o

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What they ask for

  • ✓4+ años de experiencia en sistemas backend escalables con Python o Kotlin.
  • ✓Experiencia comprobada con sistemas distribuidos altamente disponibles en AWS, MySQL y Kubernetes.
  • ✓Conocimiento práctico de capas web y móviles, incluyendo patrones como backend-for-frontend.
  • ✓Capacidad para definir planes técnicos elegantes, simples y extensibles para grandes funciones.
  • ✓Habilidad para realizar cambios significativos en grandes bases de código con herramientas seguras.
  • ✓Comunicación verbal y escrita sólida para colaborar con equipos globales.

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

PythonKotlinAWSMySQLKubernetesWebMobileBackend-for-frontendDistributed SystemsHigh Availability

Who should you write to at Affirm?

Your free dossier identifies the people who'd interview you — their background, what they value, and how to reach out so you stand out before applying.

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. Auth Experience owns the customer journeys during authentication, verification, and fraud journeys. You'll work to build the backend orchestration layers that drive our Web and Mobile surfaces. In this role, you will need to gain a deep understanding of the business, product and engineering context, and utilize that context to own and deliver high-availability and low-latency systems that Affirm customers use every day. What You'll Do · You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery. · You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs. · You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them. · You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on-call efforts. · You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks. · You will help develop talent on your team by providing feedback and guidance, and leading by example. What We Look For · You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin. · You have a track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes. · You have experience working close to the web and mobile layers, with an understanding of frontend design patterns such as fraud prevention and backend-for-frontend. · You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. You write high quality code that is easily understood and used by others. · You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely. · Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders. · You have strong verbal and written communication skills that support effective collaboration with our global engineering team. Pay Grade - N Equity Grade - 6 Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills. Base pay is part of a total compensation package that may include monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents). In addition, the employees may be eligible for equity rewards offered by Affirm Holdings, Inc. (parent company). CAN base pay range per year: CAD $153,000 - $213,000. Location - Remote Canada This remote role i

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