Tom Angelopoulos
Software Development Engineer
Santa Cruz,CA
Summary
Innovative software engineer with 7+ years of experience designing and optimizing distributed systems and large-scale data infrastructure. Skilled in building resilient, cost-efficient cloud services and improving operational reliability, and driving cross-team initiatives. Currently designing agentic AI systems to automate operational investigations. Recognized for mentoring engineers and delivering innovative solutions that balance performance, reliability, and scalability.
Overview
10
10
years of professional experience
3
3
years of post-secondary education
Work History
Software Development Engineer II
Amazon Web Services
11.2022 - Current
- Designing an agentic AI system to automate ticket investigations by leveraging AWS Bedrock Knowledge Bases for semantic search, integration with existing EBS tooling via MCP servers, and a multi-agent approach to improve root cause analysis.
- Led Control Plane Simplification initiatives, including safe removal of an unused DynamoDB GSI, development of automated IOPS right-sizing to reduce costs, and implementation of a node health cache to improve resilience during outages.
- Contribute features and optimizations to EC2 EBS Physalia, a distributed, highly available metadata store.
- Escalated and collaborated with DynamoDB engineers to resolve misclassified throttling errors, improving the reliability of instance launches.
- Championed operational excellence, initiating ticket reduction programs and separating customer-facing metrics to cut noise while achieving a 23% year-over-year reduction in high-sev incidents.
- Designed DNS-based control plane solution enabling EBS support for a new generation of AWS Outposts.
- Author high-level design docs, drive multi-team projects, mentor engineers, and lead team learning discussions.
Software Development Engineer I
Amazon Web Services
04.2020 - 11.2022
- Reduced scan times by 60% for a critical sweeper service through multithreading and distributed scheduling.
- Optimized DynamoDB usage patterns, reducing control plane costs by 40%.
- Designed cross-team integration for static stability testing by introducing test server pool constructs.
- Delivered integration support for instance launches on AWS Outposts infrastructure.
Software Engineer
Zazzle, Inc
02.2016 - 04.2020
- Trained and deployed deep learning models for instance segmentation, enabling automated generation of product visualization assets.
- Maintained large-scale product data integrations and implemented ETL pipelines for ingestion and transformation.
- Built dynamic rendering pipeline with three.js and custom shaders to visualize realistic materials (foil, letterpress, etching).
Education
Bachelor of Science - Physics
University of Southern California
Los Angeles 08.2009 - 05.2012
Skills
Full Stack Software Development
Distributed Systems
Technical Writing
Technical analysis
Scrum methodology
New employee mentoring
Java, Python, Ruby, Scala, Linux
Cloud Computing Services
Timeline
Software Development Engineer II
Amazon Web Services
11.2022 - Current
Software Development Engineer I
Amazon Web Services
04.2020 - 11.2022
Software Engineer
Zazzle, Inc
02.2016 - 04.2020
Bachelor of Science - Physics
University of Southern California
08.2009 - 05.2012
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