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[Remote] Senior Software Engineer, Backend (Infrastructure)

Remote · Argentina Full-time

Note: The job is a remote job and is open to candidates in USA. 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. The Senior Software Engineer, Backend (Infrastructure) will lead a team in delivering key projects, enhance security for infrastructure, and collaborate across departments to improve product development and team performance.

Responsibilities

  • 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

Skills

  • 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin
  • A track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes
  • Deep expertise of Kubernetes resource management, Helm charts, and operator patterns, centered around security workloads
  • Experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design
  • Ability to write high quality code that is easily understood and used by others
  • 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
  • Demonstrated ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders
  • Strong verbal and written communication skills that support effective collaboration with our global engineering team
  • This position requires either equivalent practical experience or a Bachelor's degree in a related field

Benefits

  • Equity rewards
  • Monthly stipends for health, wellness and tech spending
  • Benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents.)
  • 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

Company Overview

  • Affirm is a financial technology services company that offers installment loans to consumers at the point of sale. It was founded in 2012, and is headquartered in San Francisco, California, USA, with a workforce of 1001-5000 employees. Its website is https://www.affirm.com.
  • Company H1B Sponsorship

  • Affirm has a track record of offering H1B sponsorships, with 20 in 2026, 104 in 2025, 96 in 2024, 133 in 2023, 179 in 2022, 132 in 2021, 57 in 2020. Please note that this does not guarantee sponsorship for this specific role.
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