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Years of Experience

Projects Shipped

1.4k

Open-source Stars

Building resilient distributed systems, modern web apps, and developer tools. Open to select consulting & staff roles.

Experience

Staff Software Engineer · Nexus Cloud Systems

2023-01 — Present

Leading 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 · Velocity AI

2020-06 — 2022-12

Built 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 · Starlight Digital Labs

2018-04 — 2020-05

Engineered web applications, REST/GraphQL APIs, and automated CI/CD testing pipelines.

Built end-to-end payment processing and billing workflows supporting multi-currency payouts.

Selected work

02 projects

PulseStream — Distributed Event Monitoring

Open-source real-time observability agent for distributed microservice clusters with instant anomaly alerting.

TypeScriptRustWebSocketsClickHouse

ResumeForge AI

AI-assisted career builder enabling professionals to generate ATS-friendly resumes and responsive portfolios.

Next.jsPostgreSQLTailwind CSSOpenAI

Capabilities

React 19Next.jsTypeScriptTailwind CSSshadcn/uiReduxWeb WorkersNode.jsExpressPythonGoGraphQLREST APIsKafkaPostgreSQLRedisDockerKubernetesAWS (ECS, S3, RDS)Cloudflare WorkersCI/CD ActionsTerraform

Education

University of California, Berkeley

B.S. in Electrical Engineering & Computer Science, Computer Science · Sep 2014 – May 2018

Credentials

AWS Certified Solutions Architect – Professional

Amazon Web Services · 2024-03

Verify

Certified Kubernetes Administrator (CKA)

Cloud Native Computing Foundation · 2023-11

Verify

English — Native · Spanish — Professional working proficiency

Let's work together Let’s talk

Services

Platform Architecture

Distributed systems, edge compute, and resilient SaaS backends built for scale.

Product Engineering

End-to-end web apps, design systems, and high-performance frontends.

Developer Experience

Internal tools, CI/CD, and golden paths that keep teams shipping.

Advisory & Mentoring

Staff-plus consulting, architecture reviews, and engineering leadership.

Tools

Next.js · React FrameworkTypeScript · Typed JavaScriptPostgreSQL · Relational DBKubernetes · OrchestrationFigma · Design ToolTailwind CSS · Styling Engine

FAQ

What services do you offer?

I offer full-cycle design and development including platform architecture, custom web apps, and engineering advisory.

How do I start a project with you?

Email me with your goals, scope, and timeline. I will review and schedule an intro conversation.

Alex Rivera