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Sphere

Senior Backend Engineer (Infrastructure)

Build and scale infrastructure for high-availability, low-latency tax compliance platform handling millions of global transactions. Manage Kubernetes clusters, Postgres at scale, and cloud-native services while participating in on-call and collaborating with customers.

230k – 260kSan Francisco, CADevOps / SREOnsite
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About the role

Responsibilities

  • Find solutions to Sphere's toughest scaling, performance, and latency problems
  • Work closely with engineering team to define tooling to help ship faster
  • Participate in on-call rotation to solve critical production events
  • Work directly with customers like Eleven Labs, Replit, Windsurf, and partners like Stripe, Chargebee on latency and availability requirements
  • Influence and implement next generation of Sphere's database, real-time queue, and container orchestration infrastructure
  • Introduce and scale best practices with cloud-native technologies like Amazon ALB, ECS/EKS, Temporal, AWS SQS, Amazon Aurora PostgreSQL, Elasticache Redis, and S3
  • Build abstractions within Terraform to simplify architecture and increase velocity and ownership

Requirements

  • Experience managing k8s clusters in AWS/GCP/Azure at scale
  • Extensive experience shipping high-quality architectures for mission critical systems (focus on high availability, high load, low latency)
  • Experience with Postgres at scale

Nice to Have

  • Experience working with large volumes of transaction data
  • Strong experience in Python (core application backend and data pipeline services built with Python and Django)
  • Passionate about developer experience
  • Very strong attention to detail

Skills

KubernetesAWSGCPAzurePostgresPythonDjangoTerraformAmazon AuroraElasticache RedisTemporalAws SqsAmazon AlbECSEKS

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