Software Engineer II - Platform & Infrastructure

Abnormal AI is looking for an experienced and driven Platform & Infra software engineer to join the PI team. You will help build the platforms that power Abnormal's growth.

About the Role

You will own and evolve the monitoring, metrics, and alerting infrastructure that every engineering team at Abnormal depends on. You will work across the Prometheus, Chronosphere, and Grafana stack to ensure engineers can see what their systems are doing in real time.

Your Impact

• Own the observability stack (Prometheus, Chronosphere, Grafana, PagerDuty) that every team relies on to detect, diagnose, and resolve production issues.
• Design platforms and developer tooling that remove friction, reducing deployment times, simplifying pipeline authoring, and letting product teams focus on building rather than firefighting.
• Drive SLAs and SLOs for critical shared infrastructure ensuring the systems behind our products are resilient and cost-efficient.

What you will do

• Work with the Tech Lead, Engineering Manager, and Product Manager to design, develop, and deliver key platform features.
• Own features end-to-end: scoping, implementation, testing, deployment, and post-launch monitoring across multiple environments (US, EU, GovCloud).
• Take ownership of 1-3 key services within Observability (Prometheus, Chronosphere, Grafana, PagerDuty pipeline) or Data Infra (Airflow, Spark) and be accountable for their reliability, performance, and evolution.
• Participate in on-call rotations, triage, diagnose, and resolve production issues independently, building deep operational knowledge of the systems you own.

Must Haves

• 4+ years of hands-on backend engineering experience designing, building, and operating production-grade distributed systems.
• Strong proficiency in Python, working proficiency in Golang.
• Experience building systems that process data at scale.
• Demonstrated experience owning a service or platform end-to-end.
• Comfortable balancing feature development with operational responsibilities.

Nice to Have

• Hands-on experience with Prometheus, Grafana, Chronosphere, Datadog, New Relic, or Honeycomb.
• Experience designing or operating an alerting pipeline (PagerDuty, OpsGenie, or similar).
• Familiarity with AWS services (EC2, ECS, EKS, S3, RDS, IAM, CloudWatch, Lambda, SQS/SNS).
• Experience with Kubernetes (K8s), deploying and operating workloads.