Sami
Muduroglu

Building automation, audit tools, and data pipelines for AWS Billing’s Private Pricing Agreements.

• Promoted to SDE II within 1.5 years of joining Amazon.
• Led development of an automated billing audit platform that identified 45+ contract errors, mitigating over $400 million in potential billing errors for AWS customers. Improved billing accuracy by 10% and saved 30–40 hours of manual auditing each month.
• Built contract ingestion automation for 7,000+ Enterprise Support contracts, contributing to the 60% PPA auto-ingestion goal.
• Developed an event-driven ETL pipeline spanning 400,000+ data points across contracts, tickets, and approvals.

Built an Android/Kotlin debug overlay for the Echo Show OS, surfacing real-time metadata and backend state directly on the device.

• Improved developer debugging efficiency by 10–15% through live telemetry visualization.
• Worked across Amazon’s internal cloud stacks, compilers, and deployment systems.

Made computer vision systems easier to validate, with a Python/OpenCV tool overlaying TensorFlow model output on live patient video.

• Organized 8,000+ hours of test footage into a searchable QA tool.
• Built a clinician-facing dashboard summarizing 200–300 hours of overnight feeds across three hospitals.

Connected product design and engineering: created 30+ high-fidelity web and mobile designs, redesigned six app pages, and helped organize engineering work each sprint.