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.
About the job
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
Kubernetes, AWS, GCP, Azure, Postgres, Python, Django, Terraform, Amazon Aurora, Elasticache Redis, Temporal, Aws Sqs, Amazon Alb, ECS, EKS
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