AL
Alex Rivera
ProAvailable for hireSenior Full-Stack Engineer & Cloud Architect
San Francisco, US@alexrivera
Building resilient distributed systems, modern web apps, and developer tools. Open to select consulting & staff roles.
Work Experience
Staff Software Engineer at Nexus Cloud Systems
2023-01 — PresentLeading the core platform team responsible for edge compute routing and real-time streaming services.
- Architected zero-downtime distributed caching layer handling 45,000 req/sec with sub-15ms p99 latency.
- Spearheaded migration to Next.js 15 and Node.js microservices, cutting infrastructure costs by 32%.
- Mentored 10+ junior and mid-level engineers across 3 time zones and standardized engineering golden paths.
Senior Full-Stack Developer at Velocity AI
2020-06 — 2022-12Built collaborative generative AI workflows and responsive analytics dashboards for enterprise clients.
- Developed high-performance vector search UI with optimistic rendering and real-time WebSocket updates.
- Improved Core Web Vitals (LCP from 3.2s to 0.8s) through aggressive bundle splitting and image optimization.
Full-Stack Software Engineer at Starlight Digital Labs
2018-04 — 2020-05Engineered web applications, REST/GraphQL APIs, and automated CI/CD testing pipelines.
- Built end-to-end payment processing and billing workflows supporting multi-currency payouts.
Featured Projects
Open-source real-time observability agent for distributed microservice clusters with instant anomaly alerting.
TypeScriptRustWebSocketsClickHouse
Skills & Competencies
React 19Next.jsTypeScriptTailwind CSSshadcn/uiReduxWeb WorkersNode.jsExpressPythonGoGraphQLREST APIsKafkaPostgreSQLRedisDockerKubernetesAWS (ECS, S3, RDS)Cloudflare WorkersCI/CD ActionsTerraform
Certifications & Credentials
Education
B.S. in Electrical Engineering & Computer Science in Computer Science
University of California, Berkeley
Languages
English — Native · Spanish — Professional working proficiency