Senior Backend Engineer, AI Platform (Remote)

Affirm, Inc.; Houston (TX); A distancia; USD 173.000 - 255.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health coverage and family benefits

Monthly tech stipends

Descripción de la vacante

Affim is building a remote-first engineering team to scale AI platforms, gateways, and agent runtimes for production workloads. The role focuses on designing, deploying, and governing AI-powered infrastructure across millions of users and transactions.

You will partner with security and product teams, establish standards, and mentor engineers while advancing scalable, observable, and safe AI services.

Formación

• 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin.
• Experience with highly available distributed systems using AWS, MySQL and Kubernetes.
• Practical experience building with LLMs, agents, or AI frameworks in production: inference APIs, LLM gateways, tool calls, evals, or agent runtimes.
• Understanding AI usage and the infrastructure needed to support and leverage AI workloads across different disciplines.
• Experience defining a technical plan for delivering 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 take ownership of your growth and seek feedback from your team, manager, and stakeholders.
• Strong verbal and written communication skills for collaboration with a global team.
• Bachelor’s degree or equivalent practical experience.

Responsabilidades

• Plan, execute, and own technical decisions and projects within the AI Platform team, from design through launch and on-call.
• Design and build the gateway, runtime, and evaluation services that take AI workloads from pilot to production, securely scaling across millions of users.
• Make AI spend attributable and governable: build identity, quota, routing, caching, and failover controls.
• Partner with security, infrastructure, and product engineering teams to set guardrails for agentic workloads and on-behalf-of identity model for tool access.
• Create and monitor metrics for your team's systems, and own the operational health of what you ship: monitoring, alerting, runbooks, and on-call.
• Set and improve code review and design standards, and advocate for them beyond your team through writing and tech talks.
• Use AI tools and agentic workflows daily to multiply your own code, design review, and operations.
• Educate, mentor, and grow engineers in the team, and drive best practices around design, coding, and testing.

Conocimientos

Python

Kotlin

Distributed systems

AWS

MySQL

Kubernetes

LLMs/AI frameworks

Code quality

Communication

Educación

Bachelor’s degree or equivalent

Herramientas

AWS

MySQL

Kubernetes

Descripción del empleo

Affim is building a remote-first engineering team to scale AI platforms, gateways, and agent runtimes for production workloads. The role focuses on designing, deploying, and governing AI-powered infrastructure across millions of users and transactions.

You will partner with security and product teams, establish standards, and mentor engineers while advancing scalable, observable, and safe AI services.