Alex Rivera
Senior Full-Stack & Cloud Architect
Summary
High-impact Senior Full-Stack Engineer with 8+ years architecting resilient distributed systems, real-time analytics platforms, and polished web applications. Proven track record scaling microservices from zero to 15M+ active users while driving 35% latency reductions. Passionate about developer tooling, clean code ergonomics, and mentorship.
Experience
Staff Software Engineer
Mar 2022 – Present
AetherScale Technologies
San Francisco, CA
- Architected and delivered event-driven ingestion pipeline handling 1.2B daily events with 99.995% uptime using Go, Kafka, and Next.js.
- Led team of 12 engineers across US and Europe, establishing trunk-based development and reducing deployment cycle times by 48%.
- Pioneered migration from legacy monolith to modular micro-frontends, accelerating cross-functional feature velocity by 3x.
Senior Full-Stack Engineer
Jun 2019 – Feb 2022
Nexus Financial Cloud
New York, NY
- Designed sub-millisecond portfolio calculation engine processing $4.2B in client assets using TypeScript, WebSockets, and Redis.
- Engineered accessible component system adopted across 8 distinct fintech applications, slashing design QA iterations by 60%.
- Spearheaded SOC2 compliance audit readiness across 24 cloud services with zero major non-conformances.
Software Engineer
Jan 2017 – May 2019
Vanguard Labs
Austin, TX
- Built responsive real-time dashboards utilizing React, GraphQL, and PostgreSQL serving 450k monthly active users.
- Optimized frontend bundle size by 54% through aggressive code-splitting and dynamic imports, boosting Core Web Vitals to 98/100.
Projects
StreamCast Open Protocol
Open-source P2P audio streaming protocol with sub-50ms latency over WebRTC and UDP.
RustTypeScriptWebRTCWASM
FastKV In-Memory Store
High-concurrency key-value engine with automatic snapshotting and Raft consensus.
GoRaftgRPCDocker