Senior Software Engineer, Backend – Workload Safety

🕒 October 21

🇺🇸 United States – Remote

💵 $173k - $233k / year

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

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Affirm

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2012

💳 Fintech

👥 B2C

🛍️ eCommerce

💰 Post-IPO Equity on 2021-01

Fintech • B2C • eCommerce

Affirm is a financial technology company that offers a 'Buy Now, Pay Later' service, allowing consumers to make purchases and pay for them over time with flexible payment plans. Affirm eliminates hidden fees and compound interest, providing clear terms and conditions for its users. The company also offers the Affirm Card, a debit card that allows users to request to pay over time for larger purchases or pay in full for smaller ones. Affirm partners with various retailers across multiple categories, including electronics, apparel, and travel, providing customers with the convenience of paying over time at checkout both online and in physical stores. Affirm's services are integrated with Apple Pay, enabling customers to make payments seamlessly from their iPhone or iPad.

📋 Description

• Define and evolve workload safety standards for Affirm's EKS fleet • Own standards end to end, from research and prototyping through onboarding, self-service guidance, automation, and policy guardrails • Lead cross-team initiatives from design through fleet-wide rollout • Mentor engineers and uphold standards for design, code review, and operational readiness • Isolate workloads by criticality and resource profile • Resolve stuck workloads and node lifecycle problems • Determine safe operating limits for clusters and develop control plane scaling patterns • Analyze workload resource profiles to guide EC2 instance type strategy and automate the analysis • Measure standards' impact on availability, latency, risk, and cost to prioritize the roadmap • Participate in on-call for Kubernetes runtime issues • Collaborate with service, batch, ML workload, deployment, capacity, and SRE teams • Track Kubernetes community best practices and adapt them to Affirm's needs

🎯 Requirements

• 5+ years of experience running Kubernetes in production at scale, ideally Amazon EKS across many clusters • Deep understanding of Kubernetes resource management and scheduling, including requests and limits, OOM and CPU throttling behavior, affinity and anti-affinity, taints and tolerations, and topology spread constraints • Solid grasp of pod lifecycle and disruption management, including graceful termination, pod disruption budgets, and node draining • Experience enforcing configuration standards through admission control and policy-as-code, such as OPA Gatekeeper or Kyverno • Proficiency in Go or Python, including production infrastructure software such as Kubernetes controllers, operators, or admission webhooks • Strong production debugging skills and ability to turn recurring incidents into systemic fixes • Track record of leading technical initiatives across multiple teams, driving adoption of shared standards, and mentoring engineers • Experience quantifying infrastructure changes' impact on availability, latency, and cost • Strong written communication • Either equivalent practical experience or a Bachelor’s degree in a related field

🏖️ Benefits

• Equity rewards • Monthly stipends for health, wellness and tech spending • 100% subsidized medical coverage for employees and dependents • Dental and vision coverage for employees and dependents • Flexible time off • Generous holiday calendars • Employee stock purchase plan (ESPP) with discounted Affirm stock • Remote-first flexibility • In-person onboarding experience • Inclusive interview process with accommodations for candidates with disabilities

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