Spiros Dimopoulos
Senior Software Engineer at AWS. Focused on high-performance distributed systems, networking, and cloud-scale resiliency.
Performance
Rust, C++, p99 latency optimization, BPF tools, and kernel-level tuning.
Distributed Systems
CloudFront Origin resiliency, HTTP/TCP optimization, and massive-scale request fanout.
Intelligence
MLOps, signal processing, and emotion-aware AI-mediated conversations.
Selected Work
Senior Software Engineer
Amazon Web Services (AWS) · 2021 — Present
Driving high-stakes performance and resiliency features for CloudFront. Specializing in core caching, HTTP/TCP stack optimization, and large-scale request load balancing.
Origin Response Timeout Controls
Lead Developer
Shipped fine-grained control over origin timeouts, significantly improving resiliency during origin-side latency spikes.
2024 ReleaseMedia-Quality Aware Resiliency
Media & Entertainment Group
Developed intelligent failover mechanisms specifically for high-stakes live streaming and video delivery.
2021-2022 ReleaseCORS & Response Header Policies
Core Caching Team
Shipped the native CORS header module and custom response header policies, reducing logic complexity at the origin.
Request Fanout & Load Balancing
Optimized p99 latency through advanced request fanout, load balancing, and collapsed forwarding strategies in the caching layer.
Director of Application Engineering
Behavioral Signals · 2016 — 2021
Headed the application engineering division, scaling emotion-aware AI systems and leading cross-functional teams of engineers and data scientists.
Research & Publications
Transition features for CRF-based speech recognition and boundary detection
Research into low-latency parsing techniques for large-scale text processing systems.
Using Oliver API for emotion-aware movie content characterization
Leveraging behavioral signals to automate metadata tagging for media entertainment content.
Multiple time resolution analysis of speech signal using MCE training
Advanced DSP techniques applied to boundary detection and speech recognition accuracy.
How to connect AWS and Microsoft Azure VPNs
Published guide on cross-cloud network architecture and site-to-site connectivity.
Education
Boston University
Master of Business Administration (MBA)
Questrom School of Business
Technical University of Crete
Master of Science (M.Sc.), Electronics and Computer Engineering
Technical University of Crete
Engineer’s Degree, Electronics and Computer Engineering