Principal Engineer Cloud Observability & Time-Series Metrics

Amazon Inc.; Dublin; On-site; EUR 180,000 - 240,000; Full time

Job summary

Amazon Development Centre Ireland Limited seeks a Principal Software Engineer to own the CloudWatch metrics platform end-to-end architecture, including the distributed query engine, tiered storage, and ingestion pipelines. You will guide multi‑team decisions, balancing latency, cost, and durability at scale.

You’ll drive OpenTelemetry/PromQL integration, mentor senior engineers, and influence roadmaps for observability used by millions of developers and AWS services worldwide.

Qualifications

• 10+ years of non-internship professional software development experience.
• 10+ years designing and architecting large-scale distributed systems, including design patterns, reliability, and scaling.
• Experience with high-performance storage, time-series/metrics systems, query engines, or database internals.
• Experience setting technical direction across multiple teams and delivering step-function improvements to systems at scale.
• Deep familiarity with time-series data, metrics systems, and the Prometheus and OpenTelemetry ecosystems.
• Experience with S3-based storage, stream processing tools (Kinesis, Kafka), and columnar formats such as Parquet.
• Experience with PromQL or other time-series query languages, query planning, storage and performance optimization at scale.

Responsibilities

• Set the multi-year technical vision and architecture for the CloudWatch metrics platform — query execution, tiered and long-term storage, and ingestion — and drive it across multiple teams.
• Own the hardest design decisions on correctness, availability, performance, and cost for a globally available 24x7 service that customers rely on to monitor, alert on, and analyze their systems in real time.
• Lead the evolution toward intelligent, adaptive ingestion and make the platform the default OpenTelemetry metrics foundation across Amazon.
• Work with customers and internal teams to influence roadmap and shape how developers monitor their systems.
• Raise engineering standards through design and code reviews, operational excellence, and deep dives into production issues.
• Mentor and grow senior engineers, and represent CloudWatch metrics in AWS-wide architecture forums and the broader OpenTelemetry/Prometheus community.

Skills

Distributed systems design

Prometheus/OpenTelemetry

Multi-team leadership

Performance optimization

Rust/Java/C++

Tools

S3 storage

Kinesis

Kafka

Parquet

Job description

Amazon Development Centre Ireland Limited seeks a Principal Software Engineer to own the CloudWatch metrics platform end-to-end architecture, including the distributed query engine, tiered storage, and ingestion pipelines. You will guide multi‑team decisions, balancing latency, cost, and durability at scale.

You’ll drive OpenTelemetry/PromQL integration, mentor senior engineers, and influence roadmaps for observability used by millions of developers and AWS services worldwide.